Repository: acornjs/acorn Branch: master Commit: f25fdeda4607 Files: 122 Total size: 6.0 MB Directory structure: gitextract_cmmrs2kq/ ├── .editorconfig ├── .gitattributes ├── .github/ │ └── workflows/ │ └── ci.yml ├── .gitignore ├── .mailmap ├── .npmignore ├── .npmrc ├── .nvmrc ├── .tern-project ├── AUTHORS ├── README.md ├── acorn/ │ ├── .npmignore │ ├── CHANGELOG.md │ ├── LICENSE │ ├── README.md │ ├── bin/ │ │ └── acorn │ ├── package.json │ ├── rollup.config.mjs │ └── src/ │ ├── acorn.d.ts │ ├── bin/ │ │ └── acorn.js │ ├── expression.js │ ├── generated/ │ │ ├── astralIdentifierCodes.js │ │ ├── astralIdentifierStartCodes.js │ │ ├── nonASCIIidentifierChars.js │ │ ├── nonASCIIidentifierStartChars.js │ │ └── scriptValuesAddedInUnicode.js │ ├── identifier.js │ ├── index.js │ ├── location.js │ ├── locutil.js │ ├── lval.js │ ├── node.js │ ├── options.js │ ├── package.json │ ├── parseutil.js │ ├── regexp.js │ ├── scope.js │ ├── scopeflags.js │ ├── state.js │ ├── statement.js │ ├── tokencontext.js │ ├── tokenize.js │ ├── tokentype.js │ ├── unicode-property-data.js │ ├── util.js │ └── whitespace.js ├── acorn-loose/ │ ├── .npmignore │ ├── CHANGELOG.md │ ├── LICENSE │ ├── README.md │ ├── package.json │ ├── rollup.config.mjs │ └── src/ │ ├── acorn-loose.d.ts │ ├── expression.js │ ├── index.js │ ├── package.json │ ├── parseutil.js │ ├── state.js │ ├── statement.js │ └── tokenize.js ├── acorn-walk/ │ ├── .npmignore │ ├── CHANGELOG.md │ ├── LICENSE │ ├── README.md │ ├── package.json │ ├── rollup.config.mjs │ └── src/ │ ├── index.js │ ├── package.json │ └── walk.d.ts ├── bin/ │ ├── generate-identifier-regex.js │ ├── generate-unicode-script-values.js │ ├── run_test262.js │ ├── test262.unsupported-features │ ├── test262.whitelist │ └── update_authors.sh ├── eslint.config.mjs ├── package.json └── test/ ├── bench/ │ ├── common.js │ ├── fixtures/ │ │ ├── angular.js │ │ ├── backbone.js │ │ ├── ember.js │ │ ├── jquery.js │ │ ├── react-dom.js │ │ └── react.js │ ├── index.html │ ├── index.js │ ├── package.json │ └── worker.js ├── driver.js ├── run.js ├── tests-async-iteration.js ├── tests-asyncawait.js ├── tests-await-top-level.js ├── tests-bigint.js ├── tests-class-features-2022.js ├── tests-commonjs.js ├── tests-directive.js ├── tests-dynamic-import.js ├── tests-es7.js ├── tests-export-all-as-ns-from-source.js ├── tests-export-named.js ├── tests-harmony.js ├── tests-import-attributes.js ├── tests-import-meta.js ├── tests-json-superset.js ├── tests-logical-assignment-operators.js ├── tests-module-string-names.js ├── tests-nullish-coalescing.js ├── tests-numeric-separators.js ├── tests-optional-catch-binding.js ├── tests-optional-chaining.js ├── tests-regexp-2018.js ├── tests-regexp-2020.js ├── tests-regexp-2022.js ├── tests-regexp-2024.js ├── tests-regexp-2025.js ├── tests-regexp.js ├── tests-rest-spread-properties.js ├── tests-template-literal-revision.js ├── tests-trailing-commas-in-func.js ├── tests-using.js └── tests.js ================================================ FILE CONTENTS ================================================ ================================================ FILE: .editorconfig ================================================ root = true [*] indent_style = space indent_size = 2 end_of_line = lf insert_final_newline = true ================================================ FILE: .gitattributes ================================================ * text eol=lf ================================================ FILE: .github/workflows/ci.yml ================================================ # yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json name: ci on: pull_request: branches: [ master ] push: branches: [ master ] permissions: contents: read jobs: lint: runs-on: ubuntu-latest name: Check code style steps: - uses: actions/checkout@v4 - uses: actions/setup-node@v4 with: node-version-file: '.nvmrc' cache: 'npm' - run: npm ci - run: node --run lint build-and-test: runs-on: ubuntu-latest name: Build and test steps: - uses: actions/checkout@v4 - uses: actions/setup-node@v4 with: node-version-file: '.nvmrc' cache: 'npm' - run: npm ci - run: node --run test - run: node --run test:test262 ================================================ FILE: .gitignore ================================================ .DS_Store .tern-port /node_modules /local /acorn/dist /acorn-loose/dist /acorn-walk/dist /yarn.lock ================================================ FILE: .mailmap ================================================ Adrian Heine Alistair Braidwood Forbes Lindesay Rich Harris ================================================ FILE: .npmignore ================================================ /.tern-port /test /local /rollup /bin/generate-identifier-regex.js /bin/update_authors.sh .editorconfig .gitattributes .tern-project .travis.yml /src yarn-error.log ================================================ FILE: .npmrc ================================================ package-lock = true ================================================ FILE: .nvmrc ================================================ 22 ================================================ FILE: .tern-project ================================================ { "plugins": { "node": true, "es_modules": true } } ================================================ FILE: AUTHORS ================================================ List of Acorn contributors. Updated before every release. adams85 Adam Walsh Adrian Heine Adrian Rakovsky Alex Alistair Braidwood Amila Welihinda Andres Suarez Angelo Aparajita Fishman Arian Stolwijk Artem Govorov Augustin Mauroy baseballyama Benedikt Meurer Ben Page bojavou Boopesh Mahendran Bradley Heinz Brandon Mills Brett Zamir Brian Donovan Brian Orora bvanjoi Charles Hughes Charmander Chris McKnight Conrad Irwin Cyril Auburtin Daniel Nalborczyk Daniel Tschinder David Bonnet daychongyang dnalborczyk Domenico Matteo ehmicky elixiao ericrannaud eryue0220 Eugene Obrezkov Fabien LOISON Felix Maier fn ⌃ ⌥ Forbes Lindesay Gabriel Miranda Gilad Peleg HonkingGoose Huáng Jùnliàng ibr4qr impinball Ingvar Stepanyan Jackson Ray Hamilton Jan Štola Jesse McCarthy Jiaxing Wang Joe Krump Joel Kemp Johannes Herr John-David Dalton Jordan Gensler Jordan Harband Jordan Klassen Julian Wyzykowski Jürg Lehni Kai Cataldo keeyipchan Keheliya Gallaba Kevin Irish Kevin Kwok Koichi ITO krator kyranet laosb Lucas Mirelmann luckyzeng Marek Marijn Haverbeke Martin Carlberg Mateusz Burzyński Mat Garcia Mathias Bynens Mathieu 'p01' Henri Matthew Bastien Max Schaefer Max Zerzouri mickey-gs Mihai Bazon Mike Rennie naoh Nauja Nicholas C. Zakas Nick Fitzgerald Norbiros Olivier Thomann Oskar Schöldström ota-meshi overlookmotel Paul Harper peakchen90 Peter Rust piotr PlNG Praveen N Prayag Verma ReadmeCritic r-e-d Renée Kooi Richard Gibson Rich Harris Robert Palmer Rouven Weßling Sebastian McKenzie Shahar Soel Sheel Bedi Simen Bekkhus sosukesuzuki susiwen susiwen8 Tanimodori Teddy Katz Timothy Gu Timo Tijhof Tim van der Lippe Tony Ross Toru Nagashima tuesmiddt tyrealhu Vanilla Victor Homyakov Vladislav Tupikin Wexpo Lyu Yosuke Ota Žiga Zupančič zsjforcn 就是喜欢陈粒 成仕伟 星灵 胡文彬 龙腾道 ================================================ FILE: README.md ================================================ # Acorn Logo Acorn [![Build Status](https://github.com/acornjs/acorn/workflows/ci/badge.svg)](https://github.com/acornjs/acorn/actions) [![NPM version](https://img.shields.io/npm/v/acorn.svg)](https://www.npmjs.com/package/acorn) [![CDNJS](https://img.shields.io/cdnjs/v/acorn.svg)](https://cdnjs.com/libraries/acorn) A tiny, fast JavaScript parser, written completely in JavaScript. ## Community Acorn is open source software released under an [MIT license](https://github.com/acornjs/acorn/blob/master/acorn/LICENSE). You are welcome to [report bugs](https://github.com/acornjs/acorn/issues) or create pull requests on [github](https://github.com/acornjs/acorn). ## Packages This repository holds three packages: - [acorn](https://github.com/acornjs/acorn/tree/master/acorn/): The main parser - [acorn-loose](https://github.com/acornjs/acorn/tree/master/acorn-loose/): The error-tolerant parser - [acorn-walk](https://github.com/acornjs/acorn/tree/master/acorn-walk/): The syntax tree walker To build the content of the repository, run `npm install`. ```sh git clone https://github.com/acornjs/acorn.git cd acorn npm install ``` ## Plugin developments Acorn is designed to support plugins which can, within reasonable bounds, redefine the way the parser works. Plugins can add new token types and new tokenizer contexts (if necessary), and extend methods in the parser object. This is not a clean, elegant API—using it requires an understanding of Acorn's internals, and plugins are likely to break whenever those internals are significantly changed. But still, it is _possible_, in this way, to create parsers for JavaScript dialects without forking all of Acorn. And in principle it is even possible to combine such plugins, so that if you have, for example, a plugin for parsing types and a plugin for parsing JSX-style XML literals, you could load them both and parse code with both JSX tags and types. A plugin is a function from a parser class to an extended parser class. Plugins can be used by simply applying them to the `Parser` class (or a version of that already extended by another plugin). But because that gets a little awkward, syntactically, when you are using multiple plugins, the static method `Parser.extend` can be called with any number of plugin values as arguments to create a `Parser` class extended by all those plugins. You'll usually want to create such an extended class only once, and then repeatedly call `parse` on it, to avoid needlessly confusing the JavaScript engine's optimizer. ```javascript const {Parser} = require("acorn") const MyParser = Parser.extend( require("acorn-jsx")(), require("acorn-bigint") ) console.log(MyParser.parse("// Some bigint + JSX code")) ``` Plugins override methods in their new parser class to implement additional functionality. It is recommended for a plugin package to export its plugin function as its default value or, if it takes configuration parameters, to export a constructor function that creates the plugin function. This is what a trivial plugin, which adds a bit of code to the `readToken` method, might look like: ```javascript module.exports = function noisyReadToken(Parser) { return class extends Parser { readToken(code) { console.log("Reading a token!") super.readToken(code) } } } ``` ================================================ FILE: acorn/.npmignore ================================================ .tern-* /rollup.config.* /src ================================================ FILE: acorn/CHANGELOG.md ================================================ ## 8.16.0 (2026-02-19) ### New features The `sourceType` option can now be set to `"commonjs"` to have the parser treat the top level scope as a function scope. Add support for Unicode 17. ### Bug fixes Don't recognize `await using` as contextual keywords when followed directly by a backslash. Fix an issue where the parser would allow `return` statements in `static` blocks when `allowReturnOutsideFunction` was enabled. Properly reject `using` declarations that appear directly in `switch` or `for` head scopes. Fix some corner case issues in the recognition of `using` syntax. ## 8.15.0 (2025-06-08) ### New features Support `using` and `await using` syntax. The `AnyNode` type is now defined in such a way that plugins can extend it. ### Bug fixes Fix an issue where the `bigint` property of literal nodes for non-decimal bigints had the wrong format. The `acorn` CLI tool no longer crashes when emitting a tree that contains a bigint. ## 8.14.1 (2025-03-05) ### Bug fixes Fix an issue where `await` expressions in class field initializers were inappropriately allowed. Properly allow await inside an async arrow function inside a class field initializer. Mention the source file name in syntax error messages when given. Properly add an empty `attributes` property to every form of `ExportNamedDeclaration`. ## 8.14.0 (2024-10-27) ### New features Support ES2025 import attributes. Support ES2025 RegExp modifiers. ### Bug fixes Support some missing Unicode properties. ## 8.13.0 (2024-10-16) ### New features Upgrade to Unicode 16.0. ## 8.12.1 (2024-07-03) ### Bug fixes Fix a regression that caused Acorn to no longer run on Node versions <8.10. ## 8.12.0 (2024-06-14) ### New features Support ES2025 duplicate capture group names in regular expressions. ### Bug fixes Include `VariableDeclarator` in the `AnyNode` type so that walker objects can refer to it without getting a type error. Properly raise a parse error for invalid `for`/`of` statements using `async` as binding name. Properly recognize \"use strict\" when preceded by a string with an escaped newline. Mark the `Parser` constructor as protected, not private, so plugins can extend it without type errors. Fix a bug where some invalid `delete` expressions were let through when the operand was parenthesized and `preserveParens` was enabled. Properly normalize line endings in raw strings of invalid template tokens. Properly track line numbers for escaped newlines in strings. Fix a bug that broke line number accounting after a template literal with invalid escape sequences. ## 8.11.3 (2023-12-29) ### Bug fixes Add `Function` and `Class` to the `AggregateType` type, so that they can be used in walkers without raising a type error. Make sure `onToken` get an `import` keyword token when parsing `import.meta`. Fix a bug where `.loc.start` could be undefined for `new.target` `meta` nodes. ## 8.11.2 (2023-10-27) ### Bug fixes Fix a bug that caused regular expressions after colon tokens to not be properly tokenized in some circumstances. ## 8.11.1 (2023-10-26) ### Bug fixes Fix a regression where `onToken` would receive 'name' tokens for 'new' keyword tokens. ## 8.11.0 (2023-10-26) ### Bug fixes Fix an issue where tokenizing (without parsing) an object literal with a property named `class` or `function` could, in some circumstance, put the tokenizer into an invalid state. Fix an issue where a slash after a call to a propery named the same as some keywords would be tokenized as a regular expression. ### New features Upgrade to Unicode 15.1. Use a set of new, much more precise, TypeScript types. ## 8.10.0 (2023-07-05) ### New features Add a `checkPrivateFields` option that disables strict checking of private property use. ## 8.9.0 (2023-06-16) ### Bug fixes Forbid dynamic import after `new`, even when part of a member expression. ### New features Add Unicode properties for ES2023. Add support for the `v` flag to regular expressions. ## 8.8.2 (2023-01-23) ### Bug fixes Fix a bug that caused `allowHashBang` to be set to false when not provided, even with `ecmaVersion >= 14`. Fix an exception when passing no option object to `parse` or `new Parser`. Fix incorrect parse error on `if (0) let\n[astral identifier char]`. ## 8.8.1 (2022-10-24) ### Bug fixes Make type for `Comment` compatible with estree types. ## 8.8.0 (2022-07-21) ### Bug fixes Allow parentheses around spread args in destructuring object assignment. Fix an issue where the tree contained `directive` properties in when parsing with a language version that doesn't support them. ### New features Support hashbang comments by default in ECMAScript 2023 and later. ## 8.7.1 (2021-04-26) ### Bug fixes Stop handling `"use strict"` directives in ECMAScript versions before 5. Fix an issue where duplicate quoted export names in `export *` syntax were incorrectly checked. Add missing type for `tokTypes`. ## 8.7.0 (2021-12-27) ### New features Support quoted export names. Upgrade to Unicode 14. Add support for Unicode 13 properties in regular expressions. ### Bug fixes Use a loop to find line breaks, because the existing regexp search would overrun the end of the searched range and waste a lot of time in minified code. ## 8.6.0 (2021-11-18) ### Bug fixes Fix a bug where an object literal with multiple `__proto__` properties would incorrectly be accepted if a later property value held an assigment. ### New features Support class private fields with the `in` operator. ## 8.5.0 (2021-09-06) ### Bug fixes Improve context-dependent tokenization in a number of corner cases. Fix location tracking after a 0x2028 or 0x2029 character in a string literal (which before did not increase the line number). Fix an issue where arrow function bodies in for loop context would inappropriately consume `in` operators. Fix wrong end locations stored on SequenceExpression nodes. Implement restriction that `for`/`of` loop LHS can't start with `let`. ### New features Add support for ES2022 class static blocks. Allow multiple input files to be passed to the CLI tool. ## 8.4.1 (2021-06-24) ### Bug fixes Fix a bug where `allowAwaitOutsideFunction` would allow `await` in class field initializers, and setting `ecmaVersion` to 13 or higher would allow top-level await in non-module sources. ## 8.4.0 (2021-06-11) ### New features A new option, `allowSuperOutsideMethod`, can be used to suppress the error when `super` is used in the wrong context. ## 8.3.0 (2021-05-31) ### New features Default `allowAwaitOutsideFunction` to true for ECMAScript 2022 an higher. Add support for the `d` ([indices](https://github.com/tc39/proposal-regexp-match-indices)) regexp flag. ## 8.2.4 (2021-05-04) ### Bug fixes Fix spec conformity in corner case 'for await (async of ...)'. ## 8.2.3 (2021-05-04) ### Bug fixes Fix an issue where the library couldn't parse 'for (async of ...)'. Fix a bug in UTF-16 decoding that would read characters incorrectly in some circumstances. ## 8.2.2 (2021-04-29) ### Bug fixes Fix a bug where a class field initialized to an async arrow function wouldn't allow await inside it. Same issue existed for generator arrow functions with yield. ## 8.2.1 (2021-04-24) ### Bug fixes Fix a regression introduced in 8.2.0 where static or async class methods with keyword names fail to parse. ## 8.2.0 (2021-04-24) ### New features Add support for ES2022 class fields and private methods. ## 8.1.1 (2021-04-12) ### Various Stop shipping source maps in the NPM package. ## 8.1.0 (2021-03-09) ### Bug fixes Fix a spurious error in nested destructuring arrays. ### New features Expose `allowAwaitOutsideFunction` in CLI interface. Make `allowImportExportAnywhere` also apply to `import.meta`. ## 8.0.5 (2021-01-25) ### Bug fixes Adjust package.json to work with Node 12.16.0 and 13.0-13.6. ## 8.0.4 (2020-10-05) ### Bug fixes Make `await x ** y` an error, following the spec. Fix potentially exponential regular expression. ## 8.0.3 (2020-10-02) ### Bug fixes Fix a wasteful loop during `Parser` creation when setting `ecmaVersion` to `"latest"`. ## 8.0.2 (2020-09-30) ### Bug fixes Make the TypeScript types reflect the current allowed values for `ecmaVersion`. Fix another regexp/division tokenizer issue. ## 8.0.1 (2020-08-12) ### Bug fixes Provide the correct value in the `version` export. ## 8.0.0 (2020-08-12) ### Bug fixes Disallow expressions like `(a = b) = c`. Make non-octal escape sequences a syntax error in strict mode. ### New features The package can now be loaded directly as an ECMAScript module in node 13+. Update to the set of Unicode properties from ES2021. ### Breaking changes The `ecmaVersion` option is now required. For the moment, omitting it will still work with a warning, but that will change in a future release. Some changes to method signatures that may be used by plugins. ## 7.4.0 (2020-08-03) ### New features Add support for logical assignment operators. Add support for numeric separators. ## 7.3.1 (2020-06-11) ### Bug fixes Make the string in the `version` export match the actual library version. ## 7.3.0 (2020-06-11) ### Bug fixes Fix a bug that caused parsing of object patterns with a property named `set` that had a default value to fail. ### New features Add support for optional chaining (`?.`). ## 7.2.0 (2020-05-09) ### Bug fixes Fix precedence issue in parsing of async arrow functions. ### New features Add support for nullish coalescing. Add support for `import.meta`. Support `export * as ...` syntax. Upgrade to Unicode 13. ## 6.4.1 (2020-03-09) ### Bug fixes More carefully check for valid UTF16 surrogate pairs in regexp validator. ## 7.1.1 (2020-03-01) ### Bug fixes Treat `\8` and `\9` as invalid escapes in template strings. Allow unicode escapes in property names that are keywords. Don't error on an exponential operator expression as argument to `await`. More carefully check for valid UTF16 surrogate pairs in regexp validator. ## 7.1.0 (2019-09-24) ### Bug fixes Disallow trailing object literal commas when ecmaVersion is less than 5. ### New features Add a static `acorn` property to the `Parser` class that contains the entire module interface, to allow plugins to access the instance of the library that they are acting on. ## 7.0.0 (2019-08-13) ### Breaking changes Changes the node format for dynamic imports to use the `ImportExpression` node type, as defined in [ESTree](https://github.com/estree/estree/blob/master/es2020.md#importexpression). Makes 10 (ES2019) the default value for the `ecmaVersion` option. ## 6.3.0 (2019-08-12) ### New features `sourceType: "module"` can now be used even when `ecmaVersion` is less than 6, to parse module-style code that otherwise conforms to an older standard. ## 6.2.1 (2019-07-21) ### Bug fixes Fix bug causing Acorn to treat some characters as identifier characters that shouldn't be treated as such. Fix issue where setting the `allowReserved` option to `"never"` allowed reserved words in some circumstances. ## 6.2.0 (2019-07-04) ### Bug fixes Improve valid assignment checking in `for`/`in` and `for`/`of` loops. Disallow binding `let` in patterns. ### New features Support bigint syntax with `ecmaVersion` >= 11. Support dynamic `import` syntax with `ecmaVersion` >= 11. Upgrade to Unicode version 12. ## 6.1.1 (2019-02-27) ### Bug fixes Fix bug that caused parsing default exports of with names to fail. ## 6.1.0 (2019-02-08) ### Bug fixes Fix scope checking when redefining a `var` as a lexical binding. ### New features Split up `parseSubscripts` to use an internal `parseSubscript` method to make it easier to extend with plugins. ## 6.0.7 (2019-02-04) ### Bug fixes Check that exported bindings are defined. Don't treat `\u180e` as a whitespace character. Check for duplicate parameter names in methods. Don't allow shorthand properties when they are generators or async methods. Forbid binding `await` in async arrow function's parameter list. ## 6.0.6 (2019-01-30) ### Bug fixes The content of class declarations and expressions is now always parsed in strict mode. Don't allow `let` or `const` to bind the variable name `let`. Treat class declarations as lexical. Don't allow a generator function declaration as the sole body of an `if` or `else`. Ignore `"use strict"` when after an empty statement. Allow string line continuations with special line terminator characters. Treat `for` bodies as part of the `for` scope when checking for conflicting bindings. Fix bug with parsing `yield` in a `for` loop initializer. Implement special cases around scope checking for functions. ## 6.0.5 (2019-01-02) ### Bug fixes Fix TypeScript type for `Parser.extend` and add `allowAwaitOutsideFunction` to options type. Don't treat `let` as a keyword when the next token is `{` on the next line. Fix bug that broke checking for parentheses around an object pattern in a destructuring assignment when `preserveParens` was on. ## 6.0.4 (2018-11-05) ### Bug fixes Further improvements to tokenizing regular expressions in corner cases. ## 6.0.3 (2018-11-04) ### Bug fixes Fix bug in tokenizing an expression-less return followed by a function followed by a regular expression. Remove stray symlink in the package tarball. ## 6.0.2 (2018-09-26) ### Bug fixes Fix bug where default expressions could fail to parse inside an object destructuring assignment expression. ## 6.0.1 (2018-09-14) ### Bug fixes Fix wrong value in `version` export. ## 6.0.0 (2018-09-14) ### Bug fixes Better handle variable-redefinition checks for catch bindings and functions directly under if statements. Forbid `new.target` in top-level arrow functions. Fix issue with parsing a regexp after `yield` in some contexts. ### New features The package now comes with TypeScript definitions. ### Breaking changes The default value of the `ecmaVersion` option is now 9 (2018). Plugins work differently, and will have to be rewritten to work with this version. The loose parser and walker have been moved into separate packages (`acorn-loose` and `acorn-walk`). ## 5.7.3 (2018-09-10) ### Bug fixes Fix failure to tokenize regexps after expressions like `x.of`. Better error message for unterminated template literals. ## 5.7.2 (2018-08-24) ### Bug fixes Properly handle `allowAwaitOutsideFunction` in for statements. Treat function declarations at the top level of modules like let bindings. Don't allow async function declarations as the only statement under a label. ## 5.7.0 (2018-06-15) ### New features Upgraded to Unicode 11. ## 5.6.0 (2018-05-31) ### New features Allow U+2028 and U+2029 in string when ECMAVersion >= 10. Allow binding-less catch statements when ECMAVersion >= 10. Add `allowAwaitOutsideFunction` option for parsing top-level `await`. ## 5.5.3 (2018-03-08) ### Bug fixes A _second_ republish of the code in 5.5.1, this time with yarn, to hopefully get valid timestamps. ## 5.5.2 (2018-03-08) ### Bug fixes A republish of the code in 5.5.1 in an attempt to solve an issue with the file timestamps in the npm package being 0. ## 5.5.1 (2018-03-06) ### Bug fixes Fix misleading error message for octal escapes in template strings. ## 5.5.0 (2018-02-27) ### New features The identifier character categorization is now based on Unicode version 10. Acorn will now validate the content of regular expressions, including new ES9 features. ## 5.4.0 (2018-02-01) ### Bug fixes Disallow duplicate or escaped flags on regular expressions. Disallow octal escapes in strings in strict mode. ### New features Add support for async iteration. Add support for object spread and rest. ## 5.3.0 (2017-12-28) ### Bug fixes Fix parsing of floating point literals with leading zeroes in loose mode. Allow duplicate property names in object patterns. Don't allow static class methods named `prototype`. Disallow async functions directly under `if` or `else`. Parse right-hand-side of `for`/`of` as an assignment expression. Stricter parsing of `for`/`in`. Don't allow unicode escapes in contextual keywords. ### New features Parsing class members was factored into smaller methods to allow plugins to hook into it. ## 5.2.1 (2017-10-30) ### Bug fixes Fix a token context corruption bug. ## 5.2.0 (2017-10-30) ### Bug fixes Fix token context tracking for `class` and `function` in property-name position. Make sure `%*` isn't parsed as a valid operator. Allow shorthand properties `get` and `set` to be followed by default values. Disallow `super` when not in callee or object position. ### New features Support [`directive` property](https://github.com/estree/estree/compare/b3de58c9997504d6fba04b72f76e6dd1619ee4eb...1da8e603237144f44710360f8feb7a9977e905e0) on directive expression statements. ## 5.1.2 (2017-09-04) ### Bug fixes Disable parsing of legacy HTML-style comments in modules. Fix parsing of async methods whose names are keywords. ## 5.1.1 (2017-07-06) ### Bug fixes Fix problem with disambiguating regexp and division after a class. ## 5.1.0 (2017-07-05) ### Bug fixes Fix tokenizing of regexps in an object-desctructuring `for`/`of` loop and after `yield`. Parse zero-prefixed numbers with non-octal digits as decimal. Allow object/array patterns in rest parameters. Don't error when `yield` is used as a property name. Allow `async` as a shorthand object property. ### New features Implement the [template literal revision proposal](https://github.com/tc39/proposal-template-literal-revision) for ES9. ## 5.0.3 (2017-04-01) ### Bug fixes Fix spurious duplicate variable definition errors for named functions. ## 5.0.2 (2017-03-30) ### Bug fixes A binary operator after a parenthesized arrow expression is no longer incorrectly treated as an error. ## 5.0.0 (2017-03-28) ### Bug fixes Raise an error for duplicated lexical bindings. Fix spurious error when an assignement expression occurred after a spread expression. Accept regular expressions after `of` (in `for`/`of`), `yield` (in a generator), and braced arrow functions. Allow labels in front or `var` declarations, even in strict mode. ### Breaking changes Parse declarations following `export default` as declaration nodes, not expressions. This means that class and function declarations nodes can now have `null` as their `id`. ## 4.0.11 (2017-02-07) ### Bug fixes Allow all forms of member expressions to be parenthesized as lvalue. ## 4.0.10 (2017-02-07) ### Bug fixes Don't expect semicolons after default-exported functions or classes, even when they are expressions. Check for use of `'use strict'` directives in non-simple parameter functions, even when already in strict mode. ## 4.0.9 (2017-02-06) ### Bug fixes Fix incorrect error raised for parenthesized simple assignment targets, so that `(x) = 1` parses again. ## 4.0.8 (2017-02-03) ### Bug fixes Solve spurious parenthesized pattern errors by temporarily erring on the side of accepting programs that our delayed errors don't handle correctly yet. ## 4.0.7 (2017-02-02) ### Bug fixes Accept invalidly rejected code like `(x).y = 2` again. Don't raise an error when a function _inside_ strict code has a non-simple parameter list. ## 4.0.6 (2017-02-02) ### Bug fixes Fix exponential behavior (manifesting itself as a complete hang for even relatively small source files) introduced by the new 'use strict' check. ## 4.0.5 (2017-02-02) ### Bug fixes Disallow parenthesized pattern expressions. Allow keywords as export names. Don't allow the `async` keyword to be parenthesized. Properly raise an error when a keyword contains a character escape. Allow `"use strict"` to appear after other string literal expressions. Disallow labeled declarations. ## 4.0.4 (2016-12-19) ### Bug fixes Fix crash when `export` was followed by a keyword that can't be exported. ## 4.0.3 (2016-08-16) ### Bug fixes Allow regular function declarations inside single-statement `if` branches in loose mode. Forbid them entirely in strict mode. Properly parse properties named `async` in ES2017 mode. Fix bug where reserved words were broken in ES2017 mode. ## 4.0.2 (2016-08-11) ### Bug fixes Don't ignore period or 'e' characters after octal numbers. Fix broken parsing for call expressions in default parameter values of arrow functions. ## 4.0.1 (2016-08-08) ### Bug fixes Fix false positives in duplicated export name errors. ## 4.0.0 (2016-08-07) ### Breaking changes The default `ecmaVersion` option value is now 7. A number of internal method signatures changed, so plugins might need to be updated. ### Bug fixes The parser now raises errors on duplicated export names. `arguments` and `eval` can now be used in shorthand properties. Duplicate parameter names in non-simple argument lists now always produce an error. ### New features The `ecmaVersion` option now also accepts year-style version numbers (2015, etc). Support for `async`/`await` syntax when `ecmaVersion` is >= 8. Support for trailing commas in call expressions when `ecmaVersion` is >= 8. ## 3.3.0 (2016-07-25) ### Bug fixes Fix bug in tokenizing of regexp operator after a function declaration. Fix parser crash when parsing an array pattern with a hole. ### New features Implement check against complex argument lists in functions that enable strict mode in ES7. ## 3.2.0 (2016-06-07) ### Bug fixes Improve handling of lack of unicode regexp support in host environment. Properly reject shorthand properties whose name is a keyword. ### New features Visitors created with `visit.make` now have their base as _prototype_, rather than copying properties into a fresh object. ## 3.1.0 (2016-04-18) ### Bug fixes Properly tokenize the division operator directly after a function expression. Allow trailing comma in destructuring arrays. ## 3.0.4 (2016-02-25) ### Fixes Allow update expressions as left-hand-side of the ES7 exponential operator. ## 3.0.2 (2016-02-10) ### Fixes Fix bug that accidentally made `undefined` a reserved word when parsing ES7. ## 3.0.0 (2016-02-10) ### Breaking changes The default value of the `ecmaVersion` option is now 6 (used to be 5). Support for comprehension syntax (which was dropped from the draft spec) has been removed. ### Fixes `let` and `yield` are now “contextual keywords”, meaning you can mostly use them as identifiers in ES5 non-strict code. A parenthesized class or function expression after `export default` is now parsed correctly. ### New features When `ecmaVersion` is set to 7, Acorn will parse the exponentiation operator (`**`). The identifier character ranges are now based on Unicode 8.0.0. Plugins can now override the `raiseRecoverable` method to override the way non-critical errors are handled. ## 2.7.0 (2016-01-04) ### Fixes Stop allowing rest parameters in setters. Disallow `y` rexexp flag in ES5. Disallow `\00` and `\000` escapes in strict mode. Raise an error when an import name is a reserved word. ## 2.6.2 (2015-11-10) ### Fixes Don't crash when no options object is passed. ## 2.6.0 (2015-11-09) ### Fixes Add `await` as a reserved word in module sources. Disallow `yield` in a parameter default value for a generator. Forbid using a comma after a rest pattern in an array destructuring. ### New features Support parsing stdin in command-line tool. ## 2.5.0 (2015-10-27) ### Fixes Fix tokenizer support in the command-line tool. Stop allowing `new.target` outside of functions. Remove legacy `guard` and `guardedHandler` properties from try nodes. Stop allowing multiple `__proto__` properties on an object literal in strict mode. Don't allow rest parameters to be non-identifier patterns. Check for duplicate paramter names in arrow functions. ================================================ FILE: acorn/LICENSE ================================================ MIT License Copyright (C) 2012-2022 by various contributors (see AUTHORS) Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ================================================ FILE: acorn/README.md ================================================ # Acorn A tiny, fast JavaScript parser written in JavaScript. ## Community Acorn is open source software released under an [MIT license](https://github.com/acornjs/acorn/blob/master/acorn/LICENSE). You are welcome to [report bugs](https://github.com/acornjs/acorn/issues) or create pull requests on [github](https://github.com/acornjs/acorn). ## Installation The easiest way to install acorn is from [`npm`](https://www.npmjs.com/): ```sh npm install acorn ``` Alternately, you can download the source and build acorn yourself: ```sh git clone https://github.com/acornjs/acorn.git cd acorn npm install ``` ## Importing acorn ESM as well as CommonJS is supported for all 3: `acorn`, `acorn-walk` and `acorn-loose`. ESM example for `acorn`: ```js import * as acorn from "acorn" ``` CommonJS example for `acorn`: ```js let acorn = require("acorn") ``` ESM is preferred, as it allows better editor auto-completions by offering TypeScript support. For this reason, following examples will use ESM imports. ## Interface **parse**`(input, options)` is the main interface to the library. The `input` parameter is a string, `options` must be an object setting some of the options listed below. The return value will be an abstract syntax tree object as specified by the [ESTree spec](https://github.com/estree/estree). ```javascript import * as acorn from "acorn" console.log(acorn.parse("1 + 1", {ecmaVersion: 2020})) ``` When encountering a syntax error, the parser will raise a `SyntaxError` object with a meaningful message. The error object will have a `pos` property that indicates the string offset at which the error occurred, and a `loc` object that contains a `{line, column}` object referring to that same position. Options are provided by in a second argument, which should be an object containing any of these fields (only `ecmaVersion` is required): - **ecmaVersion**: Indicates the ECMAScript version to parse. Can be a number, either in year (`2022`) or plain version number (`6`) form, or `"latest"` (the latest the library supports). This influences support for strict mode, the set of reserved words, and support for new syntax features. **NOTE**: Only 'stage 4' (finalized) ECMAScript features are being implemented by Acorn. Other proposed new features must be implemented through plugins. - **sourceType**: Indicate the mode the code should be parsed in. Can be either `"script"`, `"module"` or `"commonjs"`. This influences global strict mode and parsing of `import` and `export` declarations. **NOTE**: If set to `"module"`, then static `import` / `export` syntax will be valid, even if `ecmaVersion` is less than 6. If set to `"commonjs"`, it is the same as `"script"` except that the top-level scope behaves like a function. - **onInsertedSemicolon**: If given a callback, that callback will be called whenever a missing semicolon is inserted by the parser. The callback will be given the character offset of the point where the semicolon is inserted as argument, and if `locations` is on, also a `{line, column}` object representing this position. - **onTrailingComma**: Like `onInsertedSemicolon`, but for trailing commas. - **allowReserved**: If `false`, using a reserved word will generate an error. Defaults to `true` for `ecmaVersion` 3, `false` for higher versions. When given the value `"never"`, reserved words and keywords can also not be used as property names (as in Internet Explorer's old parser). - **allowReturnOutsideFunction**: By default, a return statement at the top level raises an error. Set this to `true` to accept such code. - **allowImportExportEverywhere**: By default, `import` and `export` declarations can only appear at a program's top level. Setting this option to `true` allows them anywhere where a statement is allowed, and also allows `import.meta` expressions to appear in scripts (when `sourceType` is not `"module"`). - **allowAwaitOutsideFunction**: If `false`, `await` expressions can only appear inside `async` functions. Defaults to `true` in modules for `ecmaVersion` 2022 and later, `false` for lower versions. Setting this option to `true` allows to have top-level `await` expressions. They are still not allowed in non-`async` functions, though. Setting this option to `true` is not allowed when `sourceType: "commonjs"`. - **allowSuperOutsideMethod**: By default, `super` outside a method raises an error. Set this to `true` to accept such code. - **allowHashBang**: When this is enabled, if the code starts with the characters `#!` (as in a shellscript), the first line will be treated as a comment. Defaults to true when `ecmaVersion` >= 2023. - **checkPrivateFields**: By default, the parser will verify that private properties are only used in places where they are valid and have been declared. Set this to false to turn such checks off. - **locations**: When `true`, each node has a `loc` object attached with `start` and `end` subobjects, each of which contains the one-based line and zero-based column numbers in `{line, column}` form. Default is `false`. - **onToken**: If a function is passed for this option, each found token will be passed in same format as tokens returned from `tokenizer().getToken()`. If array is passed, each found token is pushed to it. Note that you are not allowed to call the parser from the callback—that will corrupt its internal state. - **onComment**: If a function is passed for this option, whenever a comment is encountered the function will be called with the following parameters: - `block`: `true` if the comment is a block comment, false if it is a line comment. - `text`: The content of the comment. - `start`: Character offset of the start of the comment. - `end`: Character offset of the end of the comment. When the `locations` options is on, the `{line, column}` locations of the comment’s start and end are passed as two additional parameters. If array is passed for this option, each found comment is pushed to it as object in Esprima format: ```javascript { "type": "Line" | "Block", "value": "comment text", "start": Number, "end": Number, // If `locations` option is on: "loc": { "start": {line: Number, column: Number} "end": {line: Number, column: Number} }, // If `ranges` option is on: "range": [Number, Number] } ``` Note that you are not allowed to call the parser from the callback—that will corrupt its internal state. - **ranges**: Nodes have their start and end characters offsets recorded in `start` and `end` properties (directly on the node, rather than the `loc` object, which holds line/column data. To also add a [semi-standardized](https://bugzilla.mozilla.org/show_bug.cgi?id=745678) `range` property holding a `[start, end]` array with the same numbers, set the `ranges` option to `true`. - **program**: It is possible to parse multiple files into a single AST by passing the tree produced by parsing the first file as the `program` option in subsequent parses. This will add the toplevel forms of the parsed file to the "Program" (top) node of an existing parse tree. - **sourceFile**: When the `locations` option is `true`, you can pass this option to add a `source` attribute in every node’s `loc` object. Note that the contents of this option are not examined or processed in any way; you are free to use whatever format you choose. - **directSourceFile**: Like `sourceFile`, but a `sourceFile` property will be added (regardless of the `location` option) directly to the nodes, rather than the `loc` object. - **preserveParens**: If this option is `true`, parenthesized expressions are represented by (non-standard) `ParenthesizedExpression` nodes that have a single `expression` property containing the expression inside parentheses. **parseExpressionAt**`(input, offset, options)` will parse a single expression in a string, and return its AST. It will not complain if there is more of the string left after the expression. **tokenizer**`(input, options)` returns an object with a `getToken` method that can be called repeatedly to get the next token, a `{start, end, type, value}` object (with added `loc` property when the `locations` option is enabled and `range` property when the `ranges` option is enabled). When the token's type is `tokTypes.eof`, you should stop calling the method, since it will keep returning that same token forever. Note that tokenizing JavaScript without parsing it is, in modern versions of the language, not really possible due to the way syntax is overloaded in ways that can only be disambiguated by the parse context. This package applies a bunch of heuristics to try and do a reasonable job, but you are advised to use `parse` with the `onToken` option instead of this. In ES6 environment, returned result can be used as any other protocol-compliant iterable: ```javascript for (let token of acorn.tokenizer(str)) { // iterate over the tokens } // transform code to array of tokens: var tokens = [...acorn.tokenizer(str)] ``` **tokTypes** holds an object mapping names to the token type objects that end up in the `type` properties of tokens. **getLineInfo**`(input, offset)` can be used to get a `{line, column}` object for a given program string and offset. ### The `Parser` class Instances of the **`Parser`** class contain all the state and logic that drives a parse. It has static methods `parse`, `parseExpressionAt`, and `tokenizer` that match the top-level functions by the same name. When extending the parser with plugins, you need to call these methods on the extended version of the class. To extend a parser with plugins, you can use its static `extend` method. ```javascript var acorn = require("acorn") var jsx = require("acorn-jsx") var JSXParser = acorn.Parser.extend(jsx()) JSXParser.parse("foo()", {ecmaVersion: 2020}) ``` The `extend` method takes any number of plugin values, and returns a new `Parser` class that includes the extra parser logic provided by the plugins. ## Command line interface The `bin/acorn` utility can be used to parse a file from the command line. It accepts as arguments its input file and the following options: - `--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|--ecma10`: Sets the ECMAScript version to parse. Default is version 9. - `--module`: Sets the parsing mode to `"module"`. Is set to `"script"` otherwise. - `--locations`: Attaches a "loc" object to each node with "start" and "end" subobjects, each of which contains the one-based line and zero-based column numbers in `{line, column}` form. - `--allow-hash-bang`: If the code starts with the characters #! (as in a shellscript), the first line will be treated as a comment. - `--allow-await-outside-function`: Allows top-level `await` expressions. See the `allowAwaitOutsideFunction` option for more information. - `--compact`: No whitespace is used in the AST output. - `--silent`: Do not output the AST, just return the exit status. - `--help`: Print the usage information and quit. The utility spits out the syntax tree as JSON data. ## Existing plugins - [`acorn-jsx`](https://github.com/RReverser/acorn-jsx): Parse [Facebook JSX syntax extensions](https://github.com/facebook/jsx) ================================================ FILE: acorn/bin/acorn ================================================ #!/usr/bin/env node "use strict" require("../dist/bin.js") ================================================ FILE: acorn/package.json ================================================ { "name": "acorn", "description": "ECMAScript parser", "homepage": "https://github.com/acornjs/acorn", "main": "dist/acorn.js", "types": "dist/acorn.d.ts", "module": "dist/acorn.mjs", "exports": { ".": [ { "import": "./dist/acorn.mjs", "require": "./dist/acorn.js", "default": "./dist/acorn.js" }, "./dist/acorn.js" ], "./package.json": "./package.json" }, "version": "8.16.0", "engines": { "node": ">=0.4.0" }, "maintainers": [ { "name": "Marijn Haverbeke", "email": "marijnh@gmail.com", "web": "https://marijnhaverbeke.nl" }, { "name": "Ingvar Stepanyan", "email": "me@rreverser.com", "web": "https://rreverser.com/" }, { "name": "Adrian Heine", "web": "http://adrianheine.de" } ], "repository": { "type": "git", "url": "git+https://github.com/acornjs/acorn.git" }, "license": "MIT", "scripts": { "prepare": "cd ..; npm run build:main" }, "bin": { "acorn": "bin/acorn" } } ================================================ FILE: acorn/rollup.config.mjs ================================================ import {readFile, writeFile} from "node:fs/promises" import buble from "@rollup/plugin-buble" const copy = (from, to) => ({ async writeBundle() { await writeFile(to, await readFile(from)) } }) export default [ { input: "acorn/src/index.js", output: [ { file: "acorn/dist/acorn.js", format: "umd", name: "acorn" }, { file: "acorn/dist/acorn.mjs", format: "es" } ], plugins: [ buble({transforms: {dangerousForOf: true}}), copy("acorn/src/acorn.d.ts", "acorn/dist/acorn.d.ts"), copy("acorn/src/acorn.d.ts", "acorn/dist/acorn.d.mts") ] }, { external: ["acorn", "fs", "path"], input: "acorn/src/bin/acorn.js", output: { file: "acorn/dist/bin.js", format: "cjs", paths: {acorn: "./acorn.js"} }, plugins: [ buble({transforms: {dangerousForOf: true}}) ] } ] ================================================ FILE: acorn/src/acorn.d.ts ================================================ export interface Node { start: number end: number type: string range?: [number, number] loc?: SourceLocation | null } export interface SourceLocation { source?: string | null start: Position end: Position } export interface Position { /** 1-based */ line: number /** 0-based */ column: number } export interface Identifier extends Node { type: "Identifier" name: string } export interface Literal extends Node { type: "Literal" value?: string | boolean | null | number | RegExp | bigint raw?: string regex?: { pattern: string flags: string } bigint?: string } export interface Program extends Node { type: "Program" body: Array sourceType: "script" | "module" } export interface Function extends Node { id?: Identifier | null params: Array body: BlockStatement | Expression generator: boolean expression: boolean async: boolean } export interface ExpressionStatement extends Node { type: "ExpressionStatement" expression: Expression | Literal directive?: string } export interface BlockStatement extends Node { type: "BlockStatement" body: Array } export interface EmptyStatement extends Node { type: "EmptyStatement" } export interface DebuggerStatement extends Node { type: "DebuggerStatement" } export interface WithStatement extends Node { type: "WithStatement" object: Expression body: Statement } export interface ReturnStatement extends Node { type: "ReturnStatement" argument?: Expression | null } export interface LabeledStatement extends Node { type: "LabeledStatement" label: Identifier body: Statement } export interface BreakStatement extends Node { type: "BreakStatement" label?: Identifier | null } export interface ContinueStatement extends Node { type: "ContinueStatement" label?: Identifier | null } export interface IfStatement extends Node { type: "IfStatement" test: Expression consequent: Statement alternate?: Statement | null } export interface SwitchStatement extends Node { type: "SwitchStatement" discriminant: Expression cases: Array } export interface SwitchCase extends Node { type: "SwitchCase" test?: Expression | null consequent: Array } export interface ThrowStatement extends Node { type: "ThrowStatement" argument: Expression } export interface TryStatement extends Node { type: "TryStatement" block: BlockStatement handler?: CatchClause | null finalizer?: BlockStatement | null } export interface CatchClause extends Node { type: "CatchClause" param?: Pattern | null body: BlockStatement } export interface WhileStatement extends Node { type: "WhileStatement" test: Expression body: Statement } export interface DoWhileStatement extends Node { type: "DoWhileStatement" body: Statement test: Expression } export interface ForStatement extends Node { type: "ForStatement" init?: VariableDeclaration | Expression | null test?: Expression | null update?: Expression | null body: Statement } export interface ForInStatement extends Node { type: "ForInStatement" left: VariableDeclaration | Pattern right: Expression body: Statement } export interface FunctionDeclaration extends Function { type: "FunctionDeclaration" id: Identifier body: BlockStatement } export interface VariableDeclaration extends Node { type: "VariableDeclaration" declarations: Array kind: "var" | "let" | "const" | "using" | "await using" } export interface VariableDeclarator extends Node { type: "VariableDeclarator" id: Pattern init?: Expression | null } export interface ThisExpression extends Node { type: "ThisExpression" } export interface ArrayExpression extends Node { type: "ArrayExpression" elements: Array } export interface ObjectExpression extends Node { type: "ObjectExpression" properties: Array } export interface Property extends Node { type: "Property" key: Expression value: Expression kind: "init" | "get" | "set" method: boolean shorthand: boolean computed: boolean } export interface FunctionExpression extends Function { type: "FunctionExpression" body: BlockStatement } export interface UnaryExpression extends Node { type: "UnaryExpression" operator: UnaryOperator prefix: boolean argument: Expression } export type UnaryOperator = "-" | "+" | "!" | "~" | "typeof" | "void" | "delete" export interface UpdateExpression extends Node { type: "UpdateExpression" operator: UpdateOperator argument: Expression prefix: boolean } export type UpdateOperator = "++" | "--" export interface BinaryExpression extends Node { type: "BinaryExpression" operator: BinaryOperator left: Expression | PrivateIdentifier right: Expression } export type BinaryOperator = "==" | "!=" | "===" | "!==" | "<" | "<=" | ">" | ">=" | "<<" | ">>" | ">>>" | "+" | "-" | "*" | "/" | "%" | "|" | "^" | "&" | "in" | "instanceof" | "**" export interface AssignmentExpression extends Node { type: "AssignmentExpression" operator: AssignmentOperator left: Pattern right: Expression } export type AssignmentOperator = "=" | "+=" | "-=" | "*=" | "/=" | "%=" | "<<=" | ">>=" | ">>>=" | "|=" | "^=" | "&=" | "**=" | "||=" | "&&=" | "??=" export interface LogicalExpression extends Node { type: "LogicalExpression" operator: LogicalOperator left: Expression right: Expression } export type LogicalOperator = "||" | "&&" | "??" export interface MemberExpression extends Node { type: "MemberExpression" object: Expression | Super property: Expression | PrivateIdentifier computed: boolean optional: boolean } export interface ConditionalExpression extends Node { type: "ConditionalExpression" test: Expression alternate: Expression consequent: Expression } export interface CallExpression extends Node { type: "CallExpression" callee: Expression | Super arguments: Array optional: boolean } export interface NewExpression extends Node { type: "NewExpression" callee: Expression arguments: Array } export interface SequenceExpression extends Node { type: "SequenceExpression" expressions: Array } export interface ForOfStatement extends Node { type: "ForOfStatement" left: VariableDeclaration | Pattern right: Expression body: Statement await: boolean } export interface Super extends Node { type: "Super" } export interface SpreadElement extends Node { type: "SpreadElement" argument: Expression } export interface ArrowFunctionExpression extends Function { type: "ArrowFunctionExpression" } export interface YieldExpression extends Node { type: "YieldExpression" argument?: Expression | null delegate: boolean } export interface TemplateLiteral extends Node { type: "TemplateLiteral" quasis: Array expressions: Array } export interface TaggedTemplateExpression extends Node { type: "TaggedTemplateExpression" tag: Expression quasi: TemplateLiteral } export interface TemplateElement extends Node { type: "TemplateElement" tail: boolean value: { cooked?: string | null raw: string } } export interface AssignmentProperty extends Node { type: "Property" key: Expression value: Pattern kind: "init" method: false shorthand: boolean computed: boolean } export interface ObjectPattern extends Node { type: "ObjectPattern" properties: Array } export interface ArrayPattern extends Node { type: "ArrayPattern" elements: Array } export interface RestElement extends Node { type: "RestElement" argument: Pattern } export interface AssignmentPattern extends Node { type: "AssignmentPattern" left: Pattern right: Expression } export interface Class extends Node { id?: Identifier | null superClass?: Expression | null body: ClassBody } export interface ClassBody extends Node { type: "ClassBody" body: Array } export interface MethodDefinition extends Node { type: "MethodDefinition" key: Expression | PrivateIdentifier value: FunctionExpression kind: "constructor" | "method" | "get" | "set" computed: boolean static: boolean } export interface ClassDeclaration extends Class { type: "ClassDeclaration" id: Identifier } export interface ClassExpression extends Class { type: "ClassExpression" } export interface MetaProperty extends Node { type: "MetaProperty" meta: Identifier property: Identifier } export interface ImportDeclaration extends Node { type: "ImportDeclaration" specifiers: Array source: Literal attributes: Array } export interface ImportSpecifier extends Node { type: "ImportSpecifier" imported: Identifier | Literal local: Identifier } export interface ImportDefaultSpecifier extends Node { type: "ImportDefaultSpecifier" local: Identifier } export interface ImportNamespaceSpecifier extends Node { type: "ImportNamespaceSpecifier" local: Identifier } export interface ImportAttribute extends Node { type: "ImportAttribute" key: Identifier | Literal value: Literal } export interface ExportNamedDeclaration extends Node { type: "ExportNamedDeclaration" declaration?: Declaration | null specifiers: Array source?: Literal | null attributes: Array } export interface ExportSpecifier extends Node { type: "ExportSpecifier" exported: Identifier | Literal local: Identifier | Literal } export interface AnonymousFunctionDeclaration extends Function { type: "FunctionDeclaration" id: null body: BlockStatement } export interface AnonymousClassDeclaration extends Class { type: "ClassDeclaration" id: null } export interface ExportDefaultDeclaration extends Node { type: "ExportDefaultDeclaration" declaration: AnonymousFunctionDeclaration | FunctionDeclaration | AnonymousClassDeclaration | ClassDeclaration | Expression } export interface ExportAllDeclaration extends Node { type: "ExportAllDeclaration" source: Literal exported?: Identifier | Literal | null attributes: Array } export interface AwaitExpression extends Node { type: "AwaitExpression" argument: Expression } export interface ChainExpression extends Node { type: "ChainExpression" expression: MemberExpression | CallExpression } export interface ImportExpression extends Node { type: "ImportExpression" source: Expression options: Expression | null } export interface ParenthesizedExpression extends Node { type: "ParenthesizedExpression" expression: Expression } export interface PropertyDefinition extends Node { type: "PropertyDefinition" key: Expression | PrivateIdentifier value?: Expression | null computed: boolean static: boolean } export interface PrivateIdentifier extends Node { type: "PrivateIdentifier" name: string } export interface StaticBlock extends Node { type: "StaticBlock" body: Array } export type Statement = | ExpressionStatement | BlockStatement | EmptyStatement | DebuggerStatement | WithStatement | ReturnStatement | LabeledStatement | BreakStatement | ContinueStatement | IfStatement | SwitchStatement | ThrowStatement | TryStatement | WhileStatement | DoWhileStatement | ForStatement | ForInStatement | ForOfStatement | Declaration export type Declaration = | FunctionDeclaration | VariableDeclaration | ClassDeclaration export type Expression = | Identifier | Literal | ThisExpression | ArrayExpression | ObjectExpression | FunctionExpression | UnaryExpression | UpdateExpression | BinaryExpression | AssignmentExpression | LogicalExpression | MemberExpression | ConditionalExpression | CallExpression | NewExpression | SequenceExpression | ArrowFunctionExpression | YieldExpression | TemplateLiteral | TaggedTemplateExpression | ClassExpression | MetaProperty | AwaitExpression | ChainExpression | ImportExpression | ParenthesizedExpression export type Pattern = | Identifier | MemberExpression | ObjectPattern | ArrayPattern | RestElement | AssignmentPattern export type ModuleDeclaration = | ImportDeclaration | ExportNamedDeclaration | ExportDefaultDeclaration | ExportAllDeclaration /** * This interface is only used for defining {@link AnyNode}. * It exists so that it can be extended by plugins: * * @example * ```typescript * declare module 'acorn' { * interface NodeTypes { * pluginName: FirstNode | SecondNode | ThirdNode | ... | LastNode * } * } * ``` */ interface NodeTypes { core: Statement | Expression | Declaration | ModuleDeclaration | Literal | Program | SwitchCase | CatchClause | Property | Super | SpreadElement | TemplateElement | AssignmentProperty | ObjectPattern | ArrayPattern | RestElement | AssignmentPattern | ClassBody | MethodDefinition | MetaProperty | ImportAttribute | ImportSpecifier | ImportDefaultSpecifier | ImportNamespaceSpecifier | ExportSpecifier | AnonymousFunctionDeclaration | AnonymousClassDeclaration | PropertyDefinition | PrivateIdentifier | StaticBlock | VariableDeclarator } export type AnyNode = NodeTypes[keyof NodeTypes] export function parse(input: string, options: Options): Program export function parseExpressionAt(input: string, pos: number, options: Options): Expression export function tokenizer(input: string, options: Options): { getToken(): Token [Symbol.iterator](): Iterator } export type ecmaVersion = 3 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | "latest" export interface Options { /** * `ecmaVersion` indicates the ECMAScript version to parse. Can be a * number, either in year (`2022`) or plain version number (`6`) form, * or `"latest"` (the latest the library supports). This influences * support for strict mode, the set of reserved words, and support for * new syntax features. */ ecmaVersion: ecmaVersion /** * `sourceType` indicates the mode the code should be parsed in. * Can be either `"script"`, `"module"` or `"commonjs"`. This influences global * strict mode and parsing of `import` and `export` declarations. */ sourceType?: "script" | "module" | "commonjs" /** * a callback that will be called when a semicolon is automatically inserted. * @param lastTokEnd the position of the comma as an offset * @param lastTokEndLoc location if {@link locations} is enabled */ onInsertedSemicolon?: (lastTokEnd: number, lastTokEndLoc?: Position) => void /** * similar to `onInsertedSemicolon`, but for trailing commas * @param lastTokEnd the position of the comma as an offset * @param lastTokEndLoc location if `locations` is enabled */ onTrailingComma?: (lastTokEnd: number, lastTokEndLoc?: Position) => void /** * By default, reserved words are only enforced if ecmaVersion >= 5. * Set `allowReserved` to a boolean value to explicitly turn this on * an off. When this option has the value "never", reserved words * and keywords can also not be used as property names. */ allowReserved?: boolean | "never" /** * When enabled, a return at the top level is not considered an error. */ allowReturnOutsideFunction?: boolean /** * When enabled, import/export statements are not constrained to * appearing at the top of the program, and an import.meta expression * in a script isn't considered an error. */ allowImportExportEverywhere?: boolean /** * By default, `await` identifiers are allowed to appear at the top-level scope only if {@link ecmaVersion} >= 2022. * When enabled, await identifiers are allowed to appear at the top-level scope, * but they are still not allowed in non-async functions. */ allowAwaitOutsideFunction?: boolean /** * When enabled, super identifiers are not constrained to * appearing in methods and do not raise an error when they appear elsewhere. */ allowSuperOutsideMethod?: boolean /** * When enabled, hashbang directive in the beginning of file is * allowed and treated as a line comment. Enabled by default when * {@link ecmaVersion} >= 2023. */ allowHashBang?: boolean /** * By default, the parser will verify that private properties are * only used in places where they are valid and have been declared. * Set this to false to turn such checks off. */ checkPrivateFields?: boolean /** * When `locations` is on, `loc` properties holding objects with * `start` and `end` properties as {@link Position} objects will be attached to the * nodes. */ locations?: boolean /** * a callback that will cause Acorn to call that export function with object in the same * format as tokens returned from `tokenizer().getToken()`. Note * that you are not allowed to call the parser from the * callback—that will corrupt its internal state. */ onToken?: ((token: Token) => void) | Token[] /** * This takes a export function or an array. * * When a export function is passed, Acorn will call that export function with `(block, text, start, * end)` parameters whenever a comment is skipped. `block` is a * boolean indicating whether this is a block (`/* *\/`) comment, * `text` is the content of the comment, and `start` and `end` are * character offsets that denote the start and end of the comment. * When the {@link locations} option is on, two more parameters are * passed, the full locations of {@link Position} export type of the start and * end of the comments. * * When a array is passed, each found comment of {@link Comment} export type is pushed to the array. * * Note that you are not allowed to call the * parser from the callback—that will corrupt its internal state. */ onComment?: (( isBlock: boolean, text: string, start: number, end: number, startLoc?: Position, endLoc?: Position ) => void) | Comment[] /** * Nodes have their start and end characters offsets recorded in * `start` and `end` properties (directly on the node, rather than * the `loc` object, which holds line/column data. To also add a * [semi-standardized][range] `range` property holding a `[start, * end]` array with the same numbers, set the `ranges` option to * `true`. */ ranges?: boolean /** * It is possible to parse multiple files into a single AST by * passing the tree produced by parsing the first file as * `program` option in subsequent parses. This will add the * toplevel forms of the parsed file to the `Program` (top) node * of an existing parse tree. */ program?: Node /** * When {@link locations} is on, you can pass this to record the source * file in every node's `loc` object. */ sourceFile?: string /** * This value, if given, is stored in every node, whether {@link locations} is on or off. */ directSourceFile?: string /** * When enabled, parenthesized expressions are represented by * (non-standard) ParenthesizedExpression nodes */ preserveParens?: boolean } export class Parser { options: Options input: string protected constructor(options: Options, input: string, startPos?: number) parse(): Program static parse(input: string, options: Options): Program static parseExpressionAt(input: string, pos: number, options: Options): Expression static tokenizer(input: string, options: Options): { getToken(): Token [Symbol.iterator](): Iterator } static extend(...plugins: ((BaseParser: typeof Parser) => typeof Parser)[]): typeof Parser } export const defaultOptions: Options export function getLineInfo(input: string, offset: number): Position export class TokenType { label: string keyword: string | undefined } export const tokTypes: { num: TokenType regexp: TokenType string: TokenType name: TokenType privateId: TokenType eof: TokenType bracketL: TokenType bracketR: TokenType braceL: TokenType braceR: TokenType parenL: TokenType parenR: TokenType comma: TokenType semi: TokenType colon: TokenType dot: TokenType question: TokenType questionDot: TokenType arrow: TokenType template: TokenType invalidTemplate: TokenType ellipsis: TokenType backQuote: TokenType dollarBraceL: TokenType eq: TokenType assign: TokenType incDec: TokenType prefix: TokenType logicalOR: TokenType logicalAND: TokenType bitwiseOR: TokenType bitwiseXOR: TokenType bitwiseAND: TokenType equality: TokenType relational: TokenType bitShift: TokenType plusMin: TokenType modulo: TokenType star: TokenType slash: TokenType starstar: TokenType coalesce: TokenType _break: TokenType _case: TokenType _catch: TokenType _continue: TokenType _debugger: TokenType _default: TokenType _do: TokenType _else: TokenType _finally: TokenType _for: TokenType _function: TokenType _if: TokenType _return: TokenType _switch: TokenType _throw: TokenType _try: TokenType _var: TokenType _const: TokenType _while: TokenType _with: TokenType _new: TokenType _this: TokenType _super: TokenType _class: TokenType _extends: TokenType _export: TokenType _import: TokenType _null: TokenType _true: TokenType _false: TokenType _in: TokenType _instanceof: TokenType _typeof: TokenType _void: TokenType _delete: TokenType } export interface Comment { type: "Line" | "Block" value: string start: number end: number loc?: SourceLocation range?: [number, number] } export class Token { type: TokenType start: number end: number loc?: SourceLocation range?: [number, number] } export const version: string ================================================ FILE: acorn/src/bin/acorn.js ================================================ import {basename} from "path" import {readFileSync as readFile} from "fs" import * as acorn from "acorn" let inputFilePaths = [], forceFileName = false, fileMode = false, silent = false, compact = false, tokenize = false const options = {} function help(status) { const print = (status === 0) ? console.log : console.error print("usage: " + basename(process.argv[1]) + " [--ecma3|--ecma5|--ecma6|--ecma7|--ecma8|--ecma9|...|--ecma2015|--ecma2016|--ecma2017|--ecma2018|...]") print(" [--tokenize] [--locations] [--allow-hash-bang] [--allow-await-outside-function] [--compact] [--silent] [--module] [--help] [--] [...]") process.exit(status) } for (let i = 2; i < process.argv.length; ++i) { const arg = process.argv[i] if (arg[0] !== "-" || arg === "-") inputFilePaths.push(arg) else if (arg === "--") { inputFilePaths.push(...process.argv.slice(i + 1)) forceFileName = true break } else if (arg === "--locations") options.locations = true else if (arg === "--allow-hash-bang") options.allowHashBang = true else if (arg === "--allow-await-outside-function") options.allowAwaitOutsideFunction = true else if (arg === "--silent") silent = true else if (arg === "--compact") compact = true else if (arg === "--help") help(0) else if (arg === "--tokenize") tokenize = true else if (arg === "--module") options.sourceType = "module" else { let match = arg.match(/^--ecma(\d+)$/) if (match) options.ecmaVersion = +match[1] else help(1) } } function run(codeList) { let result = [], fileIdx = 0 try { codeList.forEach((code, idx) => { fileIdx = idx if (!tokenize) { result = acorn.parse(code, options) options.program = result } else { let tokenizer = acorn.tokenizer(code, options), token do { token = tokenizer.getToken() result.push(token) } while (token.type !== acorn.tokTypes.eof) } }) } catch (e) { console.error(fileMode ? e.message.replace(/\(\d+:\d+\)$/, m => m.slice(0, 1) + inputFilePaths[fileIdx] + " " + m.slice(1)) : e.message) process.exit(1) } if (!silent) console.log(JSON.stringify(result, (_, value) => typeof value === "bigint" ? null : value, compact ? null : 2)) } if (fileMode = inputFilePaths.length && (forceFileName || !inputFilePaths.includes("-") || inputFilePaths.length !== 1)) { run(inputFilePaths.map(path => readFile(path, "utf8"))) } else { let code = "" process.stdin.resume() process.stdin.on("data", chunk => code += chunk) process.stdin.on("end", () => run([code])) } ================================================ FILE: acorn/src/expression.js ================================================ // A recursive descent parser operates by defining functions for all // syntactic elements, and recursively calling those, each function // advancing the input stream and returning an AST node. Precedence // of constructs (for example, the fact that `!x[1]` means `!(x[1])` // instead of `(!x)[1]` is handled by the fact that the parser // function that parses unary prefix operators is called first, and // in turn calls the function that parses `[]` subscripts — that // way, it'll receive the node for `x[1]` already parsed, and wraps // *that* in the unary operator node. // // Acorn uses an [operator precedence parser][opp] to handle binary // operator precedence, because it is much more compact than using // the technique outlined above, which uses different, nesting // functions to specify precedence, for all of the ten binary // precedence levels that JavaScript defines. // // [opp]: http://en.wikipedia.org/wiki/Operator-precedence_parser import {types as tt} from "./tokentype.js" import {types as tokenCtxTypes} from "./tokencontext.js" import {Parser} from "./state.js" import {DestructuringErrors} from "./parseutil.js" import {lineBreak} from "./whitespace.js" import {functionFlags, SCOPE_ARROW, SCOPE_SUPER, SCOPE_DIRECT_SUPER, BIND_OUTSIDE, BIND_VAR, SCOPE_VAR} from "./scopeflags.js" const pp = Parser.prototype // Check if property name clashes with already added. // Object/class getters and setters are not allowed to clash — // either with each other or with an init property — and in // strict mode, init properties are also not allowed to be repeated. pp.checkPropClash = function(prop, propHash, refDestructuringErrors) { if (this.options.ecmaVersion >= 9 && prop.type === "SpreadElement") return if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand)) return let {key} = prop, name switch (key.type) { case "Identifier": name = key.name; break case "Literal": name = String(key.value); break default: return } let {kind} = prop if (this.options.ecmaVersion >= 6) { if (name === "__proto__" && kind === "init") { if (propHash.proto) { if (refDestructuringErrors) { if (refDestructuringErrors.doubleProto < 0) { refDestructuringErrors.doubleProto = key.start } } else { this.raiseRecoverable(key.start, "Redefinition of __proto__ property") } } propHash.proto = true } return } name = "$" + name let other = propHash[name] if (other) { let redefinition if (kind === "init") { redefinition = this.strict && other.init || other.get || other.set } else { redefinition = other.init || other[kind] } if (redefinition) this.raiseRecoverable(key.start, "Redefinition of property") } else { other = propHash[name] = { init: false, get: false, set: false } } other[kind] = true } // ### Expression parsing // These nest, from the most general expression type at the top to // 'atomic', nondivisible expression types at the bottom. Most of // the functions will simply let the function(s) below them parse, // and, *if* the syntactic construct they handle is present, wrap // the AST node that the inner parser gave them in another node. // Parse a full expression. The optional arguments are used to // forbid the `in` operator (in for loops initalization expressions) // and provide reference for storing '=' operator inside shorthand // property assignment in contexts where both object expression // and object pattern might appear (so it's possible to raise // delayed syntax error at correct position). pp.parseExpression = function(forInit, refDestructuringErrors) { let startPos = this.start, startLoc = this.startLoc let expr = this.parseMaybeAssign(forInit, refDestructuringErrors) if (this.type === tt.comma) { let node = this.startNodeAt(startPos, startLoc) node.expressions = [expr] while (this.eat(tt.comma)) node.expressions.push(this.parseMaybeAssign(forInit, refDestructuringErrors)) return this.finishNode(node, "SequenceExpression") } return expr } // Parse an assignment expression. This includes applications of // operators like `+=`. pp.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse) { if (this.isContextual("yield")) { if (this.inGenerator) return this.parseYield(forInit) // The tokenizer will assume an expression is allowed after // `yield`, but this isn't that kind of yield else this.exprAllowed = false } let ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1, oldDoubleProto = -1 if (refDestructuringErrors) { oldParenAssign = refDestructuringErrors.parenthesizedAssign oldTrailingComma = refDestructuringErrors.trailingComma oldDoubleProto = refDestructuringErrors.doubleProto refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1 } else { refDestructuringErrors = new DestructuringErrors ownDestructuringErrors = true } let startPos = this.start, startLoc = this.startLoc if (this.type === tt.parenL || this.type === tt.name) { this.potentialArrowAt = this.start this.potentialArrowInForAwait = forInit === "await" } let left = this.parseMaybeConditional(forInit, refDestructuringErrors) if (afterLeftParse) left = afterLeftParse.call(this, left, startPos, startLoc) if (this.type.isAssign) { let node = this.startNodeAt(startPos, startLoc) node.operator = this.value if (this.type === tt.eq) left = this.toAssignable(left, false, refDestructuringErrors) if (!ownDestructuringErrors) { refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = refDestructuringErrors.doubleProto = -1 } if (refDestructuringErrors.shorthandAssign >= left.start) refDestructuringErrors.shorthandAssign = -1 // reset because shorthand default was used correctly if (this.type === tt.eq) this.checkLValPattern(left) else this.checkLValSimple(left) node.left = left this.next() node.right = this.parseMaybeAssign(forInit) if (oldDoubleProto > -1) refDestructuringErrors.doubleProto = oldDoubleProto return this.finishNode(node, "AssignmentExpression") } else { if (ownDestructuringErrors) this.checkExpressionErrors(refDestructuringErrors, true) } if (oldParenAssign > -1) refDestructuringErrors.parenthesizedAssign = oldParenAssign if (oldTrailingComma > -1) refDestructuringErrors.trailingComma = oldTrailingComma return left } // Parse a ternary conditional (`?:`) operator. pp.parseMaybeConditional = function(forInit, refDestructuringErrors) { let startPos = this.start, startLoc = this.startLoc let expr = this.parseExprOps(forInit, refDestructuringErrors) if (this.checkExpressionErrors(refDestructuringErrors)) return expr if (!(expr.type === "ArrowFunctionExpression" && expr.start === startPos) && this.eat(tt.question)) { let node = this.startNodeAt(startPos, startLoc) node.test = expr node.consequent = this.parseMaybeAssign() this.expect(tt.colon) node.alternate = this.parseMaybeAssign(forInit) return this.finishNode(node, "ConditionalExpression") } return expr } // Start the precedence parser. pp.parseExprOps = function(forInit, refDestructuringErrors) { let startPos = this.start, startLoc = this.startLoc let expr = this.parseMaybeUnary(refDestructuringErrors, false, false, forInit) if (this.checkExpressionErrors(refDestructuringErrors)) return expr return expr.start === startPos && expr.type === "ArrowFunctionExpression" ? expr : this.parseExprOp(expr, startPos, startLoc, -1, forInit) } // Parse binary operators with the operator precedence parsing // algorithm. `left` is the left-hand side of the operator. // `minPrec` provides context that allows the function to stop and // defer further parser to one of its callers when it encounters an // operator that has a lower precedence than the set it is parsing. pp.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, forInit) { let prec = this.type.binop if (prec != null && (!forInit || this.type !== tt._in)) { if (prec > minPrec) { let logical = this.type === tt.logicalOR || this.type === tt.logicalAND let coalesce = this.type === tt.coalesce if (coalesce) { // Handle the precedence of `tt.coalesce` as equal to the range of logical expressions. // In other words, `node.right` shouldn't contain logical expressions in order to check the mixed error. prec = tt.logicalAND.binop } let op = this.value this.next() let startPos = this.start, startLoc = this.startLoc let right = this.parseExprOp(this.parseMaybeUnary(null, false, false, forInit), startPos, startLoc, prec, forInit) let node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical || coalesce) if ((logical && this.type === tt.coalesce) || (coalesce && (this.type === tt.logicalOR || this.type === tt.logicalAND))) { this.raiseRecoverable(this.start, "Logical expressions and coalesce expressions cannot be mixed. Wrap either by parentheses") } return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, forInit) } } return left } pp.buildBinary = function(startPos, startLoc, left, right, op, logical) { if (right.type === "PrivateIdentifier") this.raise(right.start, "Private identifier can only be left side of binary expression") let node = this.startNodeAt(startPos, startLoc) node.left = left node.operator = op node.right = right return this.finishNode(node, logical ? "LogicalExpression" : "BinaryExpression") } // Parse unary operators, both prefix and postfix. pp.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forInit) { let startPos = this.start, startLoc = this.startLoc, expr if (this.isContextual("await") && this.canAwait) { expr = this.parseAwait(forInit) sawUnary = true } else if (this.type.prefix) { let node = this.startNode(), update = this.type === tt.incDec node.operator = this.value node.prefix = true this.next() node.argument = this.parseMaybeUnary(null, true, update, forInit) this.checkExpressionErrors(refDestructuringErrors, true) if (update) this.checkLValSimple(node.argument) else if (this.strict && node.operator === "delete" && isLocalVariableAccess(node.argument)) this.raiseRecoverable(node.start, "Deleting local variable in strict mode") else if (node.operator === "delete" && isPrivateFieldAccess(node.argument)) this.raiseRecoverable(node.start, "Private fields can not be deleted") else sawUnary = true expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression") } else if (!sawUnary && this.type === tt.privateId) { if ((forInit || this.privateNameStack.length === 0) && this.options.checkPrivateFields) this.unexpected() expr = this.parsePrivateIdent() // only could be private fields in 'in', such as #x in obj if (this.type !== tt._in) this.unexpected() } else { expr = this.parseExprSubscripts(refDestructuringErrors, forInit) if (this.checkExpressionErrors(refDestructuringErrors)) return expr while (this.type.postfix && !this.canInsertSemicolon()) { let node = this.startNodeAt(startPos, startLoc) node.operator = this.value node.prefix = false node.argument = expr this.checkLValSimple(expr) this.next() expr = this.finishNode(node, "UpdateExpression") } } if (!incDec && this.eat(tt.starstar)) { if (sawUnary) this.unexpected(this.lastTokStart) else return this.buildBinary(startPos, startLoc, expr, this.parseMaybeUnary(null, false, false, forInit), "**", false) } else { return expr } } function isLocalVariableAccess(node) { return ( node.type === "Identifier" || node.type === "ParenthesizedExpression" && isLocalVariableAccess(node.expression) ) } function isPrivateFieldAccess(node) { return ( node.type === "MemberExpression" && node.property.type === "PrivateIdentifier" || node.type === "ChainExpression" && isPrivateFieldAccess(node.expression) || node.type === "ParenthesizedExpression" && isPrivateFieldAccess(node.expression) ) } // Parse call, dot, and `[]`-subscript expressions. pp.parseExprSubscripts = function(refDestructuringErrors, forInit) { let startPos = this.start, startLoc = this.startLoc let expr = this.parseExprAtom(refDestructuringErrors, forInit) if (expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")") return expr let result = this.parseSubscripts(expr, startPos, startLoc, false, forInit) if (refDestructuringErrors && result.type === "MemberExpression") { if (refDestructuringErrors.parenthesizedAssign >= result.start) refDestructuringErrors.parenthesizedAssign = -1 if (refDestructuringErrors.parenthesizedBind >= result.start) refDestructuringErrors.parenthesizedBind = -1 if (refDestructuringErrors.trailingComma >= result.start) refDestructuringErrors.trailingComma = -1 } return result } pp.parseSubscripts = function(base, startPos, startLoc, noCalls, forInit) { let maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" && this.lastTokEnd === base.end && !this.canInsertSemicolon() && base.end - base.start === 5 && this.potentialArrowAt === base.start let optionalChained = false while (true) { let element = this.parseSubscript(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit) if (element.optional) optionalChained = true if (element === base || element.type === "ArrowFunctionExpression") { if (optionalChained) { const chainNode = this.startNodeAt(startPos, startLoc) chainNode.expression = element element = this.finishNode(chainNode, "ChainExpression") } return element } base = element } } pp.shouldParseAsyncArrow = function() { return !this.canInsertSemicolon() && this.eat(tt.arrow) } pp.parseSubscriptAsyncArrow = function(startPos, startLoc, exprList, forInit) { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, true, forInit) } pp.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit) { let optionalSupported = this.options.ecmaVersion >= 11 let optional = optionalSupported && this.eat(tt.questionDot) if (noCalls && optional) this.raise(this.lastTokStart, "Optional chaining cannot appear in the callee of new expressions") let computed = this.eat(tt.bracketL) if (computed || (optional && this.type !== tt.parenL && this.type !== tt.backQuote) || this.eat(tt.dot)) { let node = this.startNodeAt(startPos, startLoc) node.object = base if (computed) { node.property = this.parseExpression() this.expect(tt.bracketR) } else if (this.type === tt.privateId && base.type !== "Super") { node.property = this.parsePrivateIdent() } else { node.property = this.parseIdent(this.options.allowReserved !== "never") } node.computed = !!computed if (optionalSupported) { node.optional = optional } base = this.finishNode(node, "MemberExpression") } else if (!noCalls && this.eat(tt.parenL)) { let refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos this.yieldPos = 0 this.awaitPos = 0 this.awaitIdentPos = 0 let exprList = this.parseExprList(tt.parenR, this.options.ecmaVersion >= 8, false, refDestructuringErrors) if (maybeAsyncArrow && !optional && this.shouldParseAsyncArrow()) { this.checkPatternErrors(refDestructuringErrors, false) this.checkYieldAwaitInDefaultParams() if (this.awaitIdentPos > 0) this.raise(this.awaitIdentPos, "Cannot use 'await' as identifier inside an async function") this.yieldPos = oldYieldPos this.awaitPos = oldAwaitPos this.awaitIdentPos = oldAwaitIdentPos return this.parseSubscriptAsyncArrow(startPos, startLoc, exprList, forInit) } this.checkExpressionErrors(refDestructuringErrors, true) this.yieldPos = oldYieldPos || this.yieldPos this.awaitPos = oldAwaitPos || this.awaitPos this.awaitIdentPos = oldAwaitIdentPos || this.awaitIdentPos let node = this.startNodeAt(startPos, startLoc) node.callee = base node.arguments = exprList if (optionalSupported) { node.optional = optional } base = this.finishNode(node, "CallExpression") } else if (this.type === tt.backQuote) { if (optional || optionalChained) { this.raise(this.start, "Optional chaining cannot appear in the tag of tagged template expressions") } let node = this.startNodeAt(startPos, startLoc) node.tag = base node.quasi = this.parseTemplate({isTagged: true}) base = this.finishNode(node, "TaggedTemplateExpression") } return base } // Parse an atomic expression — either a single token that is an // expression, an expression started by a keyword like `function` or // `new`, or an expression wrapped in punctuation like `()`, `[]`, // or `{}`. pp.parseExprAtom = function(refDestructuringErrors, forInit, forNew) { // If a division operator appears in an expression position, the // tokenizer got confused, and we force it to read a regexp instead. if (this.type === tt.slash) this.readRegexp() let node, canBeArrow = this.potentialArrowAt === this.start switch (this.type) { case tt._super: if (!this.allowSuper) this.raise(this.start, "'super' keyword outside a method") node = this.startNode() this.next() if (this.type === tt.parenL && !this.allowDirectSuper) this.raise(node.start, "super() call outside constructor of a subclass") // The `super` keyword can appear at below: // SuperProperty: // super [ Expression ] // super . IdentifierName // SuperCall: // super ( Arguments ) if (this.type !== tt.dot && this.type !== tt.bracketL && this.type !== tt.parenL) this.unexpected() return this.finishNode(node, "Super") case tt._this: node = this.startNode() this.next() return this.finishNode(node, "ThisExpression") case tt.name: let startPos = this.start, startLoc = this.startLoc, containsEsc = this.containsEsc let id = this.parseIdent(false) if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(tt._function)) { this.overrideContext(tokenCtxTypes.f_expr) return this.parseFunction(this.startNodeAt(startPos, startLoc), 0, false, true, forInit) } if (canBeArrow && !this.canInsertSemicolon()) { if (this.eat(tt.arrow)) return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false, forInit) if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === tt.name && !containsEsc && (!this.potentialArrowInForAwait || this.value !== "of" || this.containsEsc)) { id = this.parseIdent(false) if (this.canInsertSemicolon() || !this.eat(tt.arrow)) this.unexpected() return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true, forInit) } } return id case tt.regexp: let value = this.value node = this.parseLiteral(value.value) node.regex = {pattern: value.pattern, flags: value.flags} return node case tt.num: case tt.string: return this.parseLiteral(this.value) case tt._null: case tt._true: case tt._false: node = this.startNode() node.value = this.type === tt._null ? null : this.type === tt._true node.raw = this.type.keyword this.next() return this.finishNode(node, "Literal") case tt.parenL: let start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow, forInit) if (refDestructuringErrors) { if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr)) refDestructuringErrors.parenthesizedAssign = start if (refDestructuringErrors.parenthesizedBind < 0) refDestructuringErrors.parenthesizedBind = start } return expr case tt.bracketL: node = this.startNode() this.next() node.elements = this.parseExprList(tt.bracketR, true, true, refDestructuringErrors) return this.finishNode(node, "ArrayExpression") case tt.braceL: this.overrideContext(tokenCtxTypes.b_expr) return this.parseObj(false, refDestructuringErrors) case tt._function: node = this.startNode() this.next() return this.parseFunction(node, 0) case tt._class: return this.parseClass(this.startNode(), false) case tt._new: return this.parseNew() case tt.backQuote: return this.parseTemplate() case tt._import: if (this.options.ecmaVersion >= 11) { return this.parseExprImport(forNew) } else { return this.unexpected() } default: return this.parseExprAtomDefault() } } pp.parseExprAtomDefault = function() { this.unexpected() } pp.parseExprImport = function(forNew) { const node = this.startNode() // Consume `import` as an identifier for `import.meta`. // Because `this.parseIdent(true)` doesn't check escape sequences, it needs the check of `this.containsEsc`. if (this.containsEsc) this.raiseRecoverable(this.start, "Escape sequence in keyword import") this.next() if (this.type === tt.parenL && !forNew) { return this.parseDynamicImport(node) } else if (this.type === tt.dot) { let meta = this.startNodeAt(node.start, node.loc && node.loc.start) meta.name = "import" node.meta = this.finishNode(meta, "Identifier") return this.parseImportMeta(node) } else { this.unexpected() } } pp.parseDynamicImport = function(node) { this.next() // skip `(` // Parse node.source. node.source = this.parseMaybeAssign() if (this.options.ecmaVersion >= 16) { if (!this.eat(tt.parenR)) { this.expect(tt.comma) if (!this.afterTrailingComma(tt.parenR)) { node.options = this.parseMaybeAssign() if (!this.eat(tt.parenR)) { this.expect(tt.comma) if (!this.afterTrailingComma(tt.parenR)) { this.unexpected() } } } else { node.options = null } } else { node.options = null } } else { // Verify ending. if (!this.eat(tt.parenR)) { const errorPos = this.start if (this.eat(tt.comma) && this.eat(tt.parenR)) { this.raiseRecoverable(errorPos, "Trailing comma is not allowed in import()") } else { this.unexpected(errorPos) } } } return this.finishNode(node, "ImportExpression") } pp.parseImportMeta = function(node) { this.next() // skip `.` const containsEsc = this.containsEsc node.property = this.parseIdent(true) if (node.property.name !== "meta") this.raiseRecoverable(node.property.start, "The only valid meta property for import is 'import.meta'") if (containsEsc) this.raiseRecoverable(node.start, "'import.meta' must not contain escaped characters") if (this.options.sourceType !== "module" && !this.options.allowImportExportEverywhere) this.raiseRecoverable(node.start, "Cannot use 'import.meta' outside a module") return this.finishNode(node, "MetaProperty") } pp.parseLiteral = function(value) { let node = this.startNode() node.value = value node.raw = this.input.slice(this.start, this.end) if (node.raw.charCodeAt(node.raw.length - 1) === 110) node.bigint = node.value != null ? node.value.toString() : node.raw.slice(0, -1).replace(/_/g, "") this.next() return this.finishNode(node, "Literal") } pp.parseParenExpression = function() { this.expect(tt.parenL) let val = this.parseExpression() this.expect(tt.parenR) return val } pp.shouldParseArrow = function(exprList) { return !this.canInsertSemicolon() } pp.parseParenAndDistinguishExpression = function(canBeArrow, forInit) { let startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8 if (this.options.ecmaVersion >= 6) { this.next() let innerStartPos = this.start, innerStartLoc = this.startLoc let exprList = [], first = true, lastIsComma = false let refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, spreadStart this.yieldPos = 0 this.awaitPos = 0 // Do not save awaitIdentPos to allow checking awaits nested in parameters while (this.type !== tt.parenR) { first ? first = false : this.expect(tt.comma) if (allowTrailingComma && this.afterTrailingComma(tt.parenR, true)) { lastIsComma = true break } else if (this.type === tt.ellipsis) { spreadStart = this.start exprList.push(this.parseParenItem(this.parseRestBinding())) if (this.type === tt.comma) { this.raiseRecoverable( this.start, "Comma is not permitted after the rest element" ) } break } else { exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem)) } } let innerEndPos = this.lastTokEnd, innerEndLoc = this.lastTokEndLoc this.expect(tt.parenR) if (canBeArrow && this.shouldParseArrow(exprList) && this.eat(tt.arrow)) { this.checkPatternErrors(refDestructuringErrors, false) this.checkYieldAwaitInDefaultParams() this.yieldPos = oldYieldPos this.awaitPos = oldAwaitPos return this.parseParenArrowList(startPos, startLoc, exprList, forInit) } if (!exprList.length || lastIsComma) this.unexpected(this.lastTokStart) if (spreadStart) this.unexpected(spreadStart) this.checkExpressionErrors(refDestructuringErrors, true) this.yieldPos = oldYieldPos || this.yieldPos this.awaitPos = oldAwaitPos || this.awaitPos if (exprList.length > 1) { val = this.startNodeAt(innerStartPos, innerStartLoc) val.expressions = exprList this.finishNodeAt(val, "SequenceExpression", innerEndPos, innerEndLoc) } else { val = exprList[0] } } else { val = this.parseParenExpression() } if (this.options.preserveParens) { let par = this.startNodeAt(startPos, startLoc) par.expression = val return this.finishNode(par, "ParenthesizedExpression") } else { return val } } pp.parseParenItem = function(item) { return item } pp.parseParenArrowList = function(startPos, startLoc, exprList, forInit) { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, false, forInit) } // New's precedence is slightly tricky. It must allow its argument to // be a `[]` or dot subscript expression, but not a call — at least, // not without wrapping it in parentheses. Thus, it uses the noCalls // argument to parseSubscripts to prevent it from consuming the // argument list. const empty = [] pp.parseNew = function() { if (this.containsEsc) this.raiseRecoverable(this.start, "Escape sequence in keyword new") let node = this.startNode() this.next() if (this.options.ecmaVersion >= 6 && this.type === tt.dot) { let meta = this.startNodeAt(node.start, node.loc && node.loc.start) meta.name = "new" node.meta = this.finishNode(meta, "Identifier") this.next() let containsEsc = this.containsEsc node.property = this.parseIdent(true) if (node.property.name !== "target") this.raiseRecoverable(node.property.start, "The only valid meta property for new is 'new.target'") if (containsEsc) this.raiseRecoverable(node.start, "'new.target' must not contain escaped characters") if (!this.allowNewDotTarget) this.raiseRecoverable(node.start, "'new.target' can only be used in functions and class static block") return this.finishNode(node, "MetaProperty") } let startPos = this.start, startLoc = this.startLoc node.callee = this.parseSubscripts(this.parseExprAtom(null, false, true), startPos, startLoc, true, false) if (node.callee.type === "Super") this.raiseRecoverable(startPos, "Invalid use of 'super'") if (this.eat(tt.parenL)) node.arguments = this.parseExprList(tt.parenR, this.options.ecmaVersion >= 8, false) else node.arguments = empty return this.finishNode(node, "NewExpression") } // Parse template expression. pp.parseTemplateElement = function({isTagged}) { let elem = this.startNode() if (this.type === tt.invalidTemplate) { if (!isTagged) { this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal") } elem.value = { raw: this.value.replace(/\r\n?/g, "\n"), cooked: null } } else { elem.value = { raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, "\n"), cooked: this.value } } this.next() elem.tail = this.type === tt.backQuote return this.finishNode(elem, "TemplateElement") } pp.parseTemplate = function({isTagged = false} = {}) { let node = this.startNode() this.next() node.expressions = [] let curElt = this.parseTemplateElement({isTagged}) node.quasis = [curElt] while (!curElt.tail) { if (this.type === tt.eof) this.raise(this.pos, "Unterminated template literal") this.expect(tt.dollarBraceL) node.expressions.push(this.parseExpression()) this.expect(tt.braceR) node.quasis.push(curElt = this.parseTemplateElement({isTagged})) } this.next() return this.finishNode(node, "TemplateLiteral") } pp.isAsyncProp = function(prop) { return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" && (this.type === tt.name || this.type === tt.num || this.type === tt.string || this.type === tt.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === tt.star)) && !lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) } // Parse an object literal or binding pattern. pp.parseObj = function(isPattern, refDestructuringErrors) { let node = this.startNode(), first = true, propHash = {} node.properties = [] this.next() while (!this.eat(tt.braceR)) { if (!first) { this.expect(tt.comma) if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(tt.braceR)) break } else first = false const prop = this.parseProperty(isPattern, refDestructuringErrors) if (!isPattern) this.checkPropClash(prop, propHash, refDestructuringErrors) node.properties.push(prop) } return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression") } pp.parseProperty = function(isPattern, refDestructuringErrors) { let prop = this.startNode(), isGenerator, isAsync, startPos, startLoc if (this.options.ecmaVersion >= 9 && this.eat(tt.ellipsis)) { if (isPattern) { prop.argument = this.parseIdent(false) if (this.type === tt.comma) { this.raiseRecoverable(this.start, "Comma is not permitted after the rest element") } return this.finishNode(prop, "RestElement") } // Parse argument. prop.argument = this.parseMaybeAssign(false, refDestructuringErrors) // To disallow trailing comma via `this.toAssignable()`. if (this.type === tt.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) { refDestructuringErrors.trailingComma = this.start } // Finish return this.finishNode(prop, "SpreadElement") } if (this.options.ecmaVersion >= 6) { prop.method = false prop.shorthand = false if (isPattern || refDestructuringErrors) { startPos = this.start startLoc = this.startLoc } if (!isPattern) isGenerator = this.eat(tt.star) } let containsEsc = this.containsEsc this.parsePropertyName(prop) if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) { isAsync = true isGenerator = this.options.ecmaVersion >= 9 && this.eat(tt.star) this.parsePropertyName(prop) } else { isAsync = false } this.parsePropertyValue(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) return this.finishNode(prop, "Property") } pp.parseGetterSetter = function(prop) { const kind = prop.key.name this.parsePropertyName(prop) prop.value = this.parseMethod(false) prop.kind = kind let paramCount = prop.kind === "get" ? 0 : 1 if (prop.value.params.length !== paramCount) { let start = prop.value.start if (prop.kind === "get") this.raiseRecoverable(start, "getter should have no params") else this.raiseRecoverable(start, "setter should have exactly one param") } else { if (prop.kind === "set" && prop.value.params[0].type === "RestElement") this.raiseRecoverable(prop.value.params[0].start, "Setter cannot use rest params") } } pp.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) { if ((isGenerator || isAsync) && this.type === tt.colon) this.unexpected() if (this.eat(tt.colon)) { prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors) prop.kind = "init" } else if (this.options.ecmaVersion >= 6 && this.type === tt.parenL) { if (isPattern) this.unexpected() prop.method = true prop.value = this.parseMethod(isGenerator, isAsync) prop.kind = "init" } else if (!isPattern && !containsEsc && this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" && (prop.key.name === "get" || prop.key.name === "set") && (this.type !== tt.comma && this.type !== tt.braceR && this.type !== tt.eq)) { if (isGenerator || isAsync) this.unexpected() this.parseGetterSetter(prop) } else if (this.options.ecmaVersion >= 6 && !prop.computed && prop.key.type === "Identifier") { if (isGenerator || isAsync) this.unexpected() this.checkUnreserved(prop.key) if (prop.key.name === "await" && !this.awaitIdentPos) this.awaitIdentPos = startPos if (isPattern) { prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key)) } else if (this.type === tt.eq && refDestructuringErrors) { if (refDestructuringErrors.shorthandAssign < 0) refDestructuringErrors.shorthandAssign = this.start prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key)) } else { prop.value = this.copyNode(prop.key) } prop.kind = "init" prop.shorthand = true } else this.unexpected() } pp.parsePropertyName = function(prop) { if (this.options.ecmaVersion >= 6) { if (this.eat(tt.bracketL)) { prop.computed = true prop.key = this.parseMaybeAssign() this.expect(tt.bracketR) return prop.key } else { prop.computed = false } } return prop.key = this.type === tt.num || this.type === tt.string ? this.parseExprAtom() : this.parseIdent(this.options.allowReserved !== "never") } // Initialize empty function node. pp.initFunction = function(node) { node.id = null if (this.options.ecmaVersion >= 6) node.generator = node.expression = false if (this.options.ecmaVersion >= 8) node.async = false } // Parse object or class method. pp.parseMethod = function(isGenerator, isAsync, allowDirectSuper) { let node = this.startNode(), oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos this.initFunction(node) if (this.options.ecmaVersion >= 6) node.generator = isGenerator if (this.options.ecmaVersion >= 8) node.async = !!isAsync this.yieldPos = 0 this.awaitPos = 0 this.awaitIdentPos = 0 this.enterScope(functionFlags(isAsync, node.generator) | SCOPE_SUPER | (allowDirectSuper ? SCOPE_DIRECT_SUPER : 0)) this.expect(tt.parenL) node.params = this.parseBindingList(tt.parenR, false, this.options.ecmaVersion >= 8) this.checkYieldAwaitInDefaultParams() this.parseFunctionBody(node, false, true, false) this.yieldPos = oldYieldPos this.awaitPos = oldAwaitPos this.awaitIdentPos = oldAwaitIdentPos return this.finishNode(node, "FunctionExpression") } // Parse arrow function expression with given parameters. pp.parseArrowExpression = function(node, params, isAsync, forInit) { let oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos this.enterScope(functionFlags(isAsync, false) | SCOPE_ARROW) this.initFunction(node) if (this.options.ecmaVersion >= 8) node.async = !!isAsync this.yieldPos = 0 this.awaitPos = 0 this.awaitIdentPos = 0 node.params = this.toAssignableList(params, true) this.parseFunctionBody(node, true, false, forInit) this.yieldPos = oldYieldPos this.awaitPos = oldAwaitPos this.awaitIdentPos = oldAwaitIdentPos return this.finishNode(node, "ArrowFunctionExpression") } // Parse function body and check parameters. pp.parseFunctionBody = function(node, isArrowFunction, isMethod, forInit) { let isExpression = isArrowFunction && this.type !== tt.braceL let oldStrict = this.strict, useStrict = false if (isExpression) { node.body = this.parseMaybeAssign(forInit) node.expression = true this.checkParams(node, false) } else { let nonSimple = this.options.ecmaVersion >= 7 && !this.isSimpleParamList(node.params) if (!oldStrict || nonSimple) { useStrict = this.strictDirective(this.end) // If this is a strict mode function, verify that argument names // are not repeated, and it does not try to bind the words `eval` // or `arguments`. if (useStrict && nonSimple) this.raiseRecoverable(node.start, "Illegal 'use strict' directive in function with non-simple parameter list") } // Start a new scope with regard to labels and the `inFunction` // flag (restore them to their old value afterwards). let oldLabels = this.labels this.labels = [] if (useStrict) this.strict = true // Add the params to varDeclaredNames to ensure that an error is thrown // if a let/const declaration in the function clashes with one of the params. this.checkParams(node, !oldStrict && !useStrict && !isArrowFunction && !isMethod && this.isSimpleParamList(node.params)) // Ensure the function name isn't a forbidden identifier in strict mode, e.g. 'eval' if (this.strict && node.id) this.checkLValSimple(node.id, BIND_OUTSIDE) node.body = this.parseBlock(false, undefined, useStrict && !oldStrict) node.expression = false this.adaptDirectivePrologue(node.body.body) this.labels = oldLabels } this.exitScope() } pp.isSimpleParamList = function(params) { for (let param of params) if (param.type !== "Identifier") return false return true } // Checks function params for various disallowed patterns such as using "eval" // or "arguments" and duplicate parameters. pp.checkParams = function(node, allowDuplicates) { let nameHash = Object.create(null) for (let param of node.params) this.checkLValInnerPattern(param, BIND_VAR, allowDuplicates ? null : nameHash) } // Parses a comma-separated list of expressions, and returns them as // an array. `close` is the token type that ends the list, and // `allowEmpty` can be turned on to allow subsequent commas with // nothing in between them to be parsed as `null` (which is needed // for array literals). pp.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) { let elts = [], first = true while (!this.eat(close)) { if (!first) { this.expect(tt.comma) if (allowTrailingComma && this.afterTrailingComma(close)) break } else first = false let elt if (allowEmpty && this.type === tt.comma) elt = null else if (this.type === tt.ellipsis) { elt = this.parseSpread(refDestructuringErrors) if (refDestructuringErrors && this.type === tt.comma && refDestructuringErrors.trailingComma < 0) refDestructuringErrors.trailingComma = this.start } else { elt = this.parseMaybeAssign(false, refDestructuringErrors) } elts.push(elt) } return elts } pp.checkUnreserved = function({start, end, name}) { if (this.inGenerator && name === "yield") this.raiseRecoverable(start, "Cannot use 'yield' as identifier inside a generator") if (this.inAsync && name === "await") this.raiseRecoverable(start, "Cannot use 'await' as identifier inside an async function") if (!(this.currentThisScope().flags & SCOPE_VAR) && name === "arguments") this.raiseRecoverable(start, "Cannot use 'arguments' in class field initializer") if (this.inClassStaticBlock && (name === "arguments" || name === "await")) this.raise(start, `Cannot use ${name} in class static initialization block`) if (this.keywords.test(name)) this.raise(start, `Unexpected keyword '${name}'`) if (this.options.ecmaVersion < 6 && this.input.slice(start, end).indexOf("\\") !== -1) return const re = this.strict ? this.reservedWordsStrict : this.reservedWords if (re.test(name)) { if (!this.inAsync && name === "await") this.raiseRecoverable(start, "Cannot use keyword 'await' outside an async function") this.raiseRecoverable(start, `The keyword '${name}' is reserved`) } } // Parse the next token as an identifier. If `liberal` is true (used // when parsing properties), it will also convert keywords into // identifiers. pp.parseIdent = function(liberal) { let node = this.parseIdentNode() this.next(!!liberal) this.finishNode(node, "Identifier") if (!liberal) { this.checkUnreserved(node) if (node.name === "await" && !this.awaitIdentPos) this.awaitIdentPos = node.start } return node } pp.parseIdentNode = function() { let node = this.startNode() if (this.type === tt.name) { node.name = this.value } else if (this.type.keyword) { node.name = this.type.keyword // To fix https://github.com/acornjs/acorn/issues/575 // `class` and `function` keywords push new context into this.context. // But there is no chance to pop the context if the keyword is consumed as an identifier such as a property name. // If the previous token is a dot, this does not apply because the context-managing code already ignored the keyword if ((node.name === "class" || node.name === "function") && (this.lastTokEnd !== this.lastTokStart + 1 || this.input.charCodeAt(this.lastTokStart) !== 46)) { this.context.pop() } this.type = tt.name } else { this.unexpected() } return node } pp.parsePrivateIdent = function() { const node = this.startNode() if (this.type === tt.privateId) { node.name = this.value } else { this.unexpected() } this.next() this.finishNode(node, "PrivateIdentifier") // For validating existence if (this.options.checkPrivateFields) { if (this.privateNameStack.length === 0) { this.raise(node.start, `Private field '#${node.name}' must be declared in an enclosing class`) } else { this.privateNameStack[this.privateNameStack.length - 1].used.push(node) } } return node } // Parses yield expression inside generator. pp.parseYield = function(forInit) { if (!this.yieldPos) this.yieldPos = this.start let node = this.startNode() this.next() if (this.type === tt.semi || this.canInsertSemicolon() || (this.type !== tt.star && !this.type.startsExpr)) { node.delegate = false node.argument = null } else { node.delegate = this.eat(tt.star) node.argument = this.parseMaybeAssign(forInit) } return this.finishNode(node, "YieldExpression") } pp.parseAwait = function(forInit) { if (!this.awaitPos) this.awaitPos = this.start let node = this.startNode() this.next() node.argument = this.parseMaybeUnary(null, true, false, forInit) return this.finishNode(node, "AwaitExpression") } ================================================ FILE: acorn/src/generated/astralIdentifierCodes.js ================================================ // This file was generated. Do not modify manually! export default [509, 0, 227, 0, 150, 4, 294, 9, 1368, 2, 2, 1, 6, 3, 41, 2, 5, 0, 166, 1, 574, 3, 9, 9, 7, 9, 32, 4, 318, 1, 78, 5, 71, 10, 50, 3, 123, 2, 54, 14, 32, 10, 3, 1, 11, 3, 46, 10, 8, 0, 46, 9, 7, 2, 37, 13, 2, 9, 6, 1, 45, 0, 13, 2, 49, 13, 9, 3, 2, 11, 83, 11, 7, 0, 3, 0, 158, 11, 6, 9, 7, 3, 56, 1, 2, 6, 3, 1, 3, 2, 10, 0, 11, 1, 3, 6, 4, 4, 68, 8, 2, 0, 3, 0, 2, 3, 2, 4, 2, 0, 15, 1, 83, 17, 10, 9, 5, 0, 82, 19, 13, 9, 214, 6, 3, 8, 28, 1, 83, 16, 16, 9, 82, 12, 9, 9, 7, 19, 58, 14, 5, 9, 243, 14, 166, 9, 71, 5, 2, 1, 3, 3, 2, 0, 2, 1, 13, 9, 120, 6, 3, 6, 4, 0, 29, 9, 41, 6, 2, 3, 9, 0, 10, 10, 47, 15, 199, 7, 137, 9, 54, 7, 2, 7, 17, 9, 57, 21, 2, 13, 123, 5, 4, 0, 2, 1, 2, 6, 2, 0, 9, 9, 49, 4, 2, 1, 2, 4, 9, 9, 55, 9, 266, 3, 10, 1, 2, 0, 49, 6, 4, 4, 14, 10, 5350, 0, 7, 14, 11465, 27, 2343, 9, 87, 9, 39, 4, 60, 6, 26, 9, 535, 9, 470, 0, 2, 54, 8, 3, 82, 0, 12, 1, 19628, 1, 4178, 9, 519, 45, 3, 22, 543, 4, 4, 5, 9, 7, 3, 6, 31, 3, 149, 2, 1418, 49, 513, 54, 5, 49, 9, 0, 15, 0, 23, 4, 2, 14, 1361, 6, 2, 16, 3, 6, 2, 1, 2, 4, 101, 0, 161, 6, 10, 9, 357, 0, 62, 13, 499, 13, 245, 1, 2, 9, 233, 0, 3, 0, 8, 1, 6, 0, 475, 6, 110, 6, 6, 9, 4759, 9, 787719, 239] ================================================ FILE: acorn/src/generated/astralIdentifierStartCodes.js ================================================ // This file was generated. Do not modify manually! export default [0, 11, 2, 25, 2, 18, 2, 1, 2, 14, 3, 13, 35, 122, 70, 52, 268, 28, 4, 48, 48, 31, 14, 29, 6, 37, 11, 29, 3, 35, 5, 7, 2, 4, 43, 157, 19, 35, 5, 35, 5, 39, 9, 51, 13, 10, 2, 14, 2, 6, 2, 1, 2, 10, 2, 14, 2, 6, 2, 1, 4, 51, 13, 310, 10, 21, 11, 7, 25, 5, 2, 41, 2, 8, 70, 5, 3, 0, 2, 43, 2, 1, 4, 0, 3, 22, 11, 22, 10, 30, 66, 18, 2, 1, 11, 21, 11, 25, 7, 25, 39, 55, 7, 1, 65, 0, 16, 3, 2, 2, 2, 28, 43, 28, 4, 28, 36, 7, 2, 27, 28, 53, 11, 21, 11, 18, 14, 17, 111, 72, 56, 50, 14, 50, 14, 35, 39, 27, 10, 22, 251, 41, 7, 1, 17, 5, 57, 28, 11, 0, 9, 21, 43, 17, 47, 20, 28, 22, 13, 52, 58, 1, 3, 0, 14, 44, 33, 24, 27, 35, 30, 0, 3, 0, 9, 34, 4, 0, 13, 47, 15, 3, 22, 0, 2, 0, 36, 17, 2, 24, 20, 1, 64, 6, 2, 0, 2, 3, 2, 14, 2, 9, 8, 46, 39, 7, 3, 1, 3, 21, 2, 6, 2, 1, 2, 4, 4, 0, 19, 0, 13, 4, 31, 9, 2, 0, 3, 0, 2, 37, 2, 0, 26, 0, 2, 0, 45, 52, 19, 3, 21, 2, 31, 47, 21, 1, 2, 0, 185, 46, 42, 3, 37, 47, 21, 0, 60, 42, 14, 0, 72, 26, 38, 6, 186, 43, 117, 63, 32, 7, 3, 0, 3, 7, 2, 1, 2, 23, 16, 0, 2, 0, 95, 7, 3, 38, 17, 0, 2, 0, 29, 0, 11, 39, 8, 0, 22, 0, 12, 45, 20, 0, 19, 72, 200, 32, 32, 8, 2, 36, 18, 0, 50, 29, 113, 6, 2, 1, 2, 37, 22, 0, 26, 5, 2, 1, 2, 31, 15, 0, 24, 43, 261, 18, 16, 0, 2, 12, 2, 33, 125, 0, 80, 921, 103, 110, 18, 195, 2637, 96, 16, 1071, 18, 5, 26, 3994, 6, 582, 6842, 29, 1763, 568, 8, 30, 18, 78, 18, 29, 19, 47, 17, 3, 32, 20, 6, 18, 433, 44, 212, 63, 33, 24, 3, 24, 45, 74, 6, 0, 67, 12, 65, 1, 2, 0, 15, 4, 10, 7381, 42, 31, 98, 114, 8702, 3, 2, 6, 2, 1, 2, 290, 16, 0, 30, 2, 3, 0, 15, 3, 9, 395, 2309, 106, 6, 12, 4, 8, 8, 9, 5991, 84, 2, 70, 2, 1, 3, 0, 3, 1, 3, 3, 2, 11, 2, 0, 2, 6, 2, 64, 2, 3, 3, 7, 2, 6, 2, 27, 2, 3, 2, 4, 2, 0, 4, 6, 2, 339, 3, 24, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 30, 2, 24, 2, 7, 1845, 30, 7, 5, 262, 61, 147, 44, 11, 6, 17, 0, 322, 29, 19, 43, 485, 27, 229, 29, 3, 0, 208, 30, 2, 2, 2, 1, 2, 6, 3, 4, 10, 1, 225, 6, 2, 3, 2, 1, 2, 14, 2, 196, 60, 67, 8, 0, 1205, 3, 2, 26, 2, 1, 2, 0, 3, 0, 2, 9, 2, 3, 2, 0, 2, 0, 7, 0, 5, 0, 2, 0, 2, 0, 2, 2, 2, 1, 2, 0, 3, 0, 2, 0, 2, 0, 2, 0, 2, 0, 2, 1, 2, 0, 3, 3, 2, 6, 2, 3, 2, 3, 2, 0, 2, 9, 2, 16, 6, 2, 2, 4, 2, 16, 4421, 42719, 33, 4381, 3, 5773, 3, 7472, 16, 621, 2467, 541, 1507, 4938, 6, 8489] ================================================ FILE: acorn/src/generated/nonASCIIidentifierChars.js ================================================ // This file was generated. Do not modify manually! export default "\u200c\u200d\xb7\u0300-\u036f\u0387\u0483-\u0487\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u0669\u0670\u06d6-\u06dc\u06df-\u06e4\u06e7\u06e8\u06ea-\u06ed\u06f0-\u06f9\u0711\u0730-\u074a\u07a6-\u07b0\u07c0-\u07c9\u07eb-\u07f3\u07fd\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0859-\u085b\u0897-\u089f\u08ca-\u08e1\u08e3-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962\u0963\u0966-\u096f\u0981-\u0983\u09bc\u09be-\u09c4\u09c7\u09c8\u09cb-\u09cd\u09d7\u09e2\u09e3\u09e6-\u09ef\u09fe\u0a01-\u0a03\u0a3c\u0a3e-\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a66-\u0a71\u0a75\u0a81-\u0a83\u0abc\u0abe-\u0ac5\u0ac7-\u0ac9\u0acb-\u0acd\u0ae2\u0ae3\u0ae6-\u0aef\u0afa-\u0aff\u0b01-\u0b03\u0b3c\u0b3e-\u0b44\u0b47\u0b48\u0b4b-\u0b4d\u0b55-\u0b57\u0b62\u0b63\u0b66-\u0b6f\u0b82\u0bbe-\u0bc2\u0bc6-\u0bc8\u0bca-\u0bcd\u0bd7\u0be6-\u0bef\u0c00-\u0c04\u0c3c\u0c3e-\u0c44\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0c66-\u0c6f\u0c81-\u0c83\u0cbc\u0cbe-\u0cc4\u0cc6-\u0cc8\u0cca-\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0ce6-\u0cef\u0cf3\u0d00-\u0d03\u0d3b\u0d3c\u0d3e-\u0d44\u0d46-\u0d48\u0d4a-\u0d4d\u0d57\u0d62\u0d63\u0d66-\u0d6f\u0d81-\u0d83\u0dca\u0dcf-\u0dd4\u0dd6\u0dd8-\u0ddf\u0de6-\u0def\u0df2\u0df3\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0e50-\u0e59\u0eb1\u0eb4-\u0ebc\u0ec8-\u0ece\u0ed0-\u0ed9\u0f18\u0f19\u0f20-\u0f29\u0f35\u0f37\u0f39\u0f3e\u0f3f\u0f71-\u0f84\u0f86\u0f87\u0f8d-\u0f97\u0f99-\u0fbc\u0fc6\u102b-\u103e\u1040-\u1049\u1056-\u1059\u105e-\u1060\u1062-\u1064\u1067-\u106d\u1071-\u1074\u1082-\u108d\u108f-\u109d\u135d-\u135f\u1369-\u1371\u1712-\u1715\u1732-\u1734\u1752\u1753\u1772\u1773\u17b4-\u17d3\u17dd\u17e0-\u17e9\u180b-\u180d\u180f-\u1819\u18a9\u1920-\u192b\u1930-\u193b\u1946-\u194f\u19d0-\u19da\u1a17-\u1a1b\u1a55-\u1a5e\u1a60-\u1a7c\u1a7f-\u1a89\u1a90-\u1a99\u1ab0-\u1abd\u1abf-\u1add\u1ae0-\u1aeb\u1b00-\u1b04\u1b34-\u1b44\u1b50-\u1b59\u1b6b-\u1b73\u1b80-\u1b82\u1ba1-\u1bad\u1bb0-\u1bb9\u1be6-\u1bf3\u1c24-\u1c37\u1c40-\u1c49\u1c50-\u1c59\u1cd0-\u1cd2\u1cd4-\u1ce8\u1ced\u1cf4\u1cf7-\u1cf9\u1dc0-\u1dff\u200c\u200d\u203f\u2040\u2054\u20d0-\u20dc\u20e1\u20e5-\u20f0\u2cef-\u2cf1\u2d7f\u2de0-\u2dff\u302a-\u302f\u3099\u309a\u30fb\ua620-\ua629\ua66f\ua674-\ua67d\ua69e\ua69f\ua6f0\ua6f1\ua802\ua806\ua80b\ua823-\ua827\ua82c\ua880\ua881\ua8b4-\ua8c5\ua8d0-\ua8d9\ua8e0-\ua8f1\ua8ff-\ua909\ua926-\ua92d\ua947-\ua953\ua980-\ua983\ua9b3-\ua9c0\ua9d0-\ua9d9\ua9e5\ua9f0-\ua9f9\uaa29-\uaa36\uaa43\uaa4c\uaa4d\uaa50-\uaa59\uaa7b-\uaa7d\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uaaeb-\uaaef\uaaf5\uaaf6\uabe3-\uabea\uabec\uabed\uabf0-\uabf9\ufb1e\ufe00-\ufe0f\ufe20-\ufe2f\ufe33\ufe34\ufe4d-\ufe4f\uff10-\uff19\uff3f\uff65" ================================================ FILE: acorn/src/generated/nonASCIIidentifierStartChars.js ================================================ // This file was generated. Do not modify manually! export default "\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u037f\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u052f\u0531-\u0556\u0559\u0560-\u0588\u05d0-\u05ea\u05ef-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u0860-\u086a\u0870-\u0887\u0889-\u088f\u08a0-\u08c9\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u09fc\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0af9\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c39\u0c3d\u0c58-\u0c5a\u0c5c\u0c5d\u0c60\u0c61\u0c80\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cdc-\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d04-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d54-\u0d56\u0d5f-\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e86-\u0e8a\u0e8c-\u0ea3\u0ea5\u0ea7-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f5\u13f8-\u13fd\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f8\u1700-\u1711\u171f-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1878\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191e\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19b0-\u19c9\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4c\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1c80-\u1c8a\u1c90-\u1cba\u1cbd-\u1cbf\u1ce9-\u1cec\u1cee-\u1cf3\u1cf5\u1cf6\u1cfa\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2118-\u211d\u2124\u2126\u2128\u212a-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309b-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312f\u3131-\u318e\u31a0-\u31bf\u31f0-\u31ff\u3400-\u4dbf\u4e00-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua69d\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua7dc\ua7f1-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua8fd\ua8fe\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\ua9e0-\ua9e4\ua9e6-\ua9ef\ua9fa-\ua9fe\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa7e-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uab30-\uab5a\uab5c-\uab69\uab70-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc" ================================================ FILE: acorn/src/generated/scriptValuesAddedInUnicode.js ================================================ // This file was generated by "bin/generate-unicode-script-values.js". Do not modify manually! export default "Berf Beria_Erfe Gara Garay Gukh Gurung_Khema Hrkt Katakana_Or_Hiragana Kawi Kirat_Rai Krai Nag_Mundari Nagm Ol_Onal Onao Sidetic Sidt Sunu Sunuwar Tai_Yo Tayo Todhri Todr Tolong_Siki Tols Tulu_Tigalari Tutg Unknown Zzzz" ================================================ FILE: acorn/src/identifier.js ================================================ // These are a run-length and offset encoded representation of the // >0xffff code points that are a valid part of identifiers. The // offset starts at 0x10000, and each pair of numbers represents an // offset to the next range, and then a size of the range. import astralIdentifierCodes from "./generated/astralIdentifierCodes.js" import astralIdentifierStartCodes from "./generated/astralIdentifierStartCodes.js" // Big ugly regular expressions that match characters in the // whitespace, identifier, and identifier-start categories. These // are only applied when a character is found to actually have a // code point above 128. import nonASCIIidentifierChars from "./generated/nonASCIIidentifierChars.js" import nonASCIIidentifierStartChars from "./generated/nonASCIIidentifierStartChars.js" // Reserved word lists for various dialects of the language export const reservedWords = { 3: "abstract boolean byte char class double enum export extends final float goto implements import int interface long native package private protected public short static super synchronized throws transient volatile", 5: "class enum extends super const export import", 6: "enum", strict: "implements interface let package private protected public static yield", strictBind: "eval arguments" } // And the keywords const ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this" export const keywords = { 5: ecma5AndLessKeywords, "5module": ecma5AndLessKeywords + " export import", 6: ecma5AndLessKeywords + " const class extends export import super" } export const keywordRelationalOperator = /^in(stanceof)?$/ // ## Character categories const nonASCIIidentifierStart = new RegExp("[" + nonASCIIidentifierStartChars + "]") const nonASCIIidentifier = new RegExp("[" + nonASCIIidentifierStartChars + nonASCIIidentifierChars + "]") // This has a complexity linear to the value of the code. The // assumption is that looking up astral identifier characters is // rare. function isInAstralSet(code, set) { let pos = 0x10000 for (let i = 0; i < set.length; i += 2) { pos += set[i] if (pos > code) return false pos += set[i + 1] if (pos >= code) return true } return false } // Test whether a given character code starts an identifier. export function isIdentifierStart(code, astral) { if (code < 65) return code === 36 if (code < 91) return true if (code < 97) return code === 95 if (code < 123) return true if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifierStart.test(String.fromCharCode(code)) if (astral === false) return false return isInAstralSet(code, astralIdentifierStartCodes) } // Test whether a given character is part of an identifier. export function isIdentifierChar(code, astral) { if (code < 48) return code === 36 if (code < 58) return true if (code < 65) return false if (code < 91) return true if (code < 97) return code === 95 if (code < 123) return true if (code <= 0xffff) return code >= 0xaa && nonASCIIidentifier.test(String.fromCharCode(code)) if (astral === false) return false return isInAstralSet(code, astralIdentifierStartCodes) || isInAstralSet(code, astralIdentifierCodes) } ================================================ FILE: acorn/src/index.js ================================================ // Acorn is a tiny, fast JavaScript parser written in JavaScript. // // Acorn was written by Marijn Haverbeke, Ingvar Stepanyan, and // various contributors and released under an MIT license. // // Git repositories for Acorn are available at // // http://marijnhaverbeke.nl/git/acorn // https://github.com/acornjs/acorn.git // // Please use the [github bug tracker][ghbt] to report issues. // // [ghbt]: https://github.com/acornjs/acorn/issues import {Parser} from "./state.js" import "./parseutil.js" import "./statement.js" import "./lval.js" import "./expression.js" import "./location.js" import "./scope.js" import {defaultOptions} from "./options.js" import {Position, SourceLocation, getLineInfo} from "./locutil.js" import {Node} from "./node.js" import {TokenType, types as tokTypes, keywords as keywordTypes} from "./tokentype.js" import {TokContext, types as tokContexts} from "./tokencontext.js" import {isIdentifierChar, isIdentifierStart} from "./identifier.js" import {Token} from "./tokenize.js" import {isNewLine, lineBreak, lineBreakG, nonASCIIwhitespace} from "./whitespace.js" export const version = "8.16.0" export { Parser, defaultOptions, Position, SourceLocation, getLineInfo, Node, TokenType, tokTypes, keywordTypes, TokContext, tokContexts, isIdentifierChar, isIdentifierStart, Token, isNewLine, lineBreak, lineBreakG, nonASCIIwhitespace } Parser.acorn = { Parser, version, defaultOptions, Position, SourceLocation, getLineInfo, Node, TokenType, tokTypes, keywordTypes, TokContext, tokContexts, isIdentifierChar, isIdentifierStart, Token, isNewLine, lineBreak, lineBreakG, nonASCIIwhitespace } // The main exported interface (under `self.acorn` when in the // browser) is a `parse` function that takes a code string and returns // an abstract syntax tree as specified by the [ESTree spec][estree]. // // [estree]: https://github.com/estree/estree export function parse(input, options) { return Parser.parse(input, options) } // This function tries to parse a single expression at a given // offset in a string. Useful for parsing mixed-language formats // that embed JavaScript expressions. export function parseExpressionAt(input, pos, options) { return Parser.parseExpressionAt(input, pos, options) } // Acorn is organized as a tokenizer and a recursive-descent parser. // The `tokenizer` export provides an interface to the tokenizer. export function tokenizer(input, options) { return Parser.tokenizer(input, options) } ================================================ FILE: acorn/src/location.js ================================================ import {Parser} from "./state.js" import {Position, getLineInfo} from "./locutil.js" const pp = Parser.prototype // This function is used to raise exceptions on parse errors. It // takes an offset integer (into the current `input`) to indicate // the location of the error, attaches the position to the end // of the error message, and then raises a `SyntaxError` with that // message. pp.raise = function(pos, message) { let loc = getLineInfo(this.input, pos) message += " (" + loc.line + ":" + loc.column + ")" if (this.sourceFile) { message += " in " + this.sourceFile } let err = new SyntaxError(message) err.pos = pos; err.loc = loc; err.raisedAt = this.pos throw err } pp.raiseRecoverable = pp.raise pp.curPosition = function() { if (this.options.locations) { return new Position(this.curLine, this.pos - this.lineStart) } } ================================================ FILE: acorn/src/locutil.js ================================================ import {nextLineBreak} from "./whitespace.js" // These are used when `options.locations` is on, for the // `startLoc` and `endLoc` properties. export class Position { constructor(line, col) { this.line = line this.column = col } offset(n) { return new Position(this.line, this.column + n) } } export class SourceLocation { constructor(p, start, end) { this.start = start this.end = end if (p.sourceFile !== null) this.source = p.sourceFile } } // The `getLineInfo` function is mostly useful when the // `locations` option is off (for performance reasons) and you // want to find the line/column position for a given character // offset. `input` should be the code string that the offset refers // into. export function getLineInfo(input, offset) { for (let line = 1, cur = 0;;) { let nextBreak = nextLineBreak(input, cur, offset) if (nextBreak < 0) return new Position(line, offset - cur) ++line cur = nextBreak } } ================================================ FILE: acorn/src/lval.js ================================================ import {types as tt} from "./tokentype.js" import {Parser} from "./state.js" import {hasOwn} from "./util.js" import {BIND_NONE, BIND_OUTSIDE, BIND_LEXICAL} from "./scopeflags.js" const pp = Parser.prototype // Convert existing expression atom to assignable pattern // if possible. pp.toAssignable = function(node, isBinding, refDestructuringErrors) { if (this.options.ecmaVersion >= 6 && node) { switch (node.type) { case "Identifier": if (this.inAsync && node.name === "await") this.raise(node.start, "Cannot use 'await' as identifier inside an async function") break case "ObjectPattern": case "ArrayPattern": case "AssignmentPattern": case "RestElement": break case "ObjectExpression": node.type = "ObjectPattern" if (refDestructuringErrors) this.checkPatternErrors(refDestructuringErrors, true) for (let prop of node.properties) { this.toAssignable(prop, isBinding) // Early error: // AssignmentRestProperty[Yield, Await] : // `...` DestructuringAssignmentTarget[Yield, Await] // // It is a Syntax Error if |DestructuringAssignmentTarget| is an |ArrayLiteral| or an |ObjectLiteral|. if ( prop.type === "RestElement" && (prop.argument.type === "ArrayPattern" || prop.argument.type === "ObjectPattern") ) { this.raise(prop.argument.start, "Unexpected token") } } break case "Property": // AssignmentProperty has type === "Property" if (node.kind !== "init") this.raise(node.key.start, "Object pattern can't contain getter or setter") this.toAssignable(node.value, isBinding) break case "ArrayExpression": node.type = "ArrayPattern" if (refDestructuringErrors) this.checkPatternErrors(refDestructuringErrors, true) this.toAssignableList(node.elements, isBinding) break case "SpreadElement": node.type = "RestElement" this.toAssignable(node.argument, isBinding) if (node.argument.type === "AssignmentPattern") this.raise(node.argument.start, "Rest elements cannot have a default value") break case "AssignmentExpression": if (node.operator !== "=") this.raise(node.left.end, "Only '=' operator can be used for specifying default value.") node.type = "AssignmentPattern" delete node.operator this.toAssignable(node.left, isBinding) break case "ParenthesizedExpression": this.toAssignable(node.expression, isBinding, refDestructuringErrors) break case "ChainExpression": this.raiseRecoverable(node.start, "Optional chaining cannot appear in left-hand side") break case "MemberExpression": if (!isBinding) break default: this.raise(node.start, "Assigning to rvalue") } } else if (refDestructuringErrors) this.checkPatternErrors(refDestructuringErrors, true) return node } // Convert list of expression atoms to binding list. pp.toAssignableList = function(exprList, isBinding) { let end = exprList.length for (let i = 0; i < end; i++) { let elt = exprList[i] if (elt) this.toAssignable(elt, isBinding) } if (end) { let last = exprList[end - 1] if (this.options.ecmaVersion === 6 && isBinding && last && last.type === "RestElement" && last.argument.type !== "Identifier") this.unexpected(last.argument.start) } return exprList } // Parses spread element. pp.parseSpread = function(refDestructuringErrors) { let node = this.startNode() this.next() node.argument = this.parseMaybeAssign(false, refDestructuringErrors) return this.finishNode(node, "SpreadElement") } pp.parseRestBinding = function() { let node = this.startNode() this.next() // RestElement inside of a function parameter must be an identifier if (this.options.ecmaVersion === 6 && this.type !== tt.name) this.unexpected() node.argument = this.parseBindingAtom() return this.finishNode(node, "RestElement") } // Parses lvalue (assignable) atom. pp.parseBindingAtom = function() { if (this.options.ecmaVersion >= 6) { switch (this.type) { case tt.bracketL: let node = this.startNode() this.next() node.elements = this.parseBindingList(tt.bracketR, true, true) return this.finishNode(node, "ArrayPattern") case tt.braceL: return this.parseObj(true) } } return this.parseIdent() } pp.parseBindingList = function(close, allowEmpty, allowTrailingComma, allowModifiers) { let elts = [], first = true while (!this.eat(close)) { if (first) first = false else this.expect(tt.comma) if (allowEmpty && this.type === tt.comma) { elts.push(null) } else if (allowTrailingComma && this.afterTrailingComma(close)) { break } else if (this.type === tt.ellipsis) { let rest = this.parseRestBinding() this.parseBindingListItem(rest) elts.push(rest) if (this.type === tt.comma) this.raiseRecoverable(this.start, "Comma is not permitted after the rest element") this.expect(close) break } else { elts.push(this.parseAssignableListItem(allowModifiers)) } } return elts } pp.parseAssignableListItem = function(allowModifiers) { let elem = this.parseMaybeDefault(this.start, this.startLoc) this.parseBindingListItem(elem) return elem } pp.parseBindingListItem = function(param) { return param } // Parses assignment pattern around given atom if possible. pp.parseMaybeDefault = function(startPos, startLoc, left) { left = left || this.parseBindingAtom() if (this.options.ecmaVersion < 6 || !this.eat(tt.eq)) return left let node = this.startNodeAt(startPos, startLoc) node.left = left node.right = this.parseMaybeAssign() return this.finishNode(node, "AssignmentPattern") } // The following three functions all verify that a node is an lvalue — // something that can be bound, or assigned to. In order to do so, they perform // a variety of checks: // // - Check that none of the bound/assigned-to identifiers are reserved words. // - Record name declarations for bindings in the appropriate scope. // - Check duplicate argument names, if checkClashes is set. // // If a complex binding pattern is encountered (e.g., object and array // destructuring), the entire pattern is recursively checked. // // There are three versions of checkLVal*() appropriate for different // circumstances: // // - checkLValSimple() shall be used if the syntactic construct supports // nothing other than identifiers and member expressions. Parenthesized // expressions are also correctly handled. This is generally appropriate for // constructs for which the spec says // // > It is a Syntax Error if AssignmentTargetType of [the production] is not // > simple. // // It is also appropriate for checking if an identifier is valid and not // defined elsewhere, like import declarations or function/class identifiers. // // Examples where this is used include: // a += …; // import a from '…'; // where a is the node to be checked. // // - checkLValPattern() shall be used if the syntactic construct supports // anything checkLValSimple() supports, as well as object and array // destructuring patterns. This is generally appropriate for constructs for // which the spec says // // > It is a Syntax Error if [the production] is neither an ObjectLiteral nor // > an ArrayLiteral and AssignmentTargetType of [the production] is not // > simple. // // Examples where this is used include: // (a = …); // const a = …; // try { … } catch (a) { … } // where a is the node to be checked. // // - checkLValInnerPattern() shall be used if the syntactic construct supports // anything checkLValPattern() supports, as well as default assignment // patterns, rest elements, and other constructs that may appear within an // object or array destructuring pattern. // // As a special case, function parameters also use checkLValInnerPattern(), // as they also support defaults and rest constructs. // // These functions deliberately support both assignment and binding constructs, // as the logic for both is exceedingly similar. If the node is the target of // an assignment, then bindingType should be set to BIND_NONE. Otherwise, it // should be set to the appropriate BIND_* constant, like BIND_VAR or // BIND_LEXICAL. // // If the function is called with a non-BIND_NONE bindingType, then // additionally a checkClashes object may be specified to allow checking for // duplicate argument names. checkClashes is ignored if the provided construct // is an assignment (i.e., bindingType is BIND_NONE). pp.checkLValSimple = function(expr, bindingType = BIND_NONE, checkClashes) { const isBind = bindingType !== BIND_NONE switch (expr.type) { case "Identifier": if (this.strict && this.reservedWordsStrictBind.test(expr.name)) this.raiseRecoverable(expr.start, (isBind ? "Binding " : "Assigning to ") + expr.name + " in strict mode") if (isBind) { if (bindingType === BIND_LEXICAL && expr.name === "let") this.raiseRecoverable(expr.start, "let is disallowed as a lexically bound name") if (checkClashes) { if (hasOwn(checkClashes, expr.name)) this.raiseRecoverable(expr.start, "Argument name clash") checkClashes[expr.name] = true } if (bindingType !== BIND_OUTSIDE) this.declareName(expr.name, bindingType, expr.start) } break case "ChainExpression": this.raiseRecoverable(expr.start, "Optional chaining cannot appear in left-hand side") break case "MemberExpression": if (isBind) this.raiseRecoverable(expr.start, "Binding member expression") break case "ParenthesizedExpression": if (isBind) this.raiseRecoverable(expr.start, "Binding parenthesized expression") return this.checkLValSimple(expr.expression, bindingType, checkClashes) default: this.raise(expr.start, (isBind ? "Binding" : "Assigning to") + " rvalue") } } pp.checkLValPattern = function(expr, bindingType = BIND_NONE, checkClashes) { switch (expr.type) { case "ObjectPattern": for (let prop of expr.properties) { this.checkLValInnerPattern(prop, bindingType, checkClashes) } break case "ArrayPattern": for (let elem of expr.elements) { if (elem) this.checkLValInnerPattern(elem, bindingType, checkClashes) } break default: this.checkLValSimple(expr, bindingType, checkClashes) } } pp.checkLValInnerPattern = function(expr, bindingType = BIND_NONE, checkClashes) { switch (expr.type) { case "Property": // AssignmentProperty has type === "Property" this.checkLValInnerPattern(expr.value, bindingType, checkClashes) break case "AssignmentPattern": this.checkLValPattern(expr.left, bindingType, checkClashes) break case "RestElement": this.checkLValPattern(expr.argument, bindingType, checkClashes) break default: this.checkLValPattern(expr, bindingType, checkClashes) } } ================================================ FILE: acorn/src/node.js ================================================ import {Parser} from "./state.js" import {SourceLocation} from "./locutil.js" export class Node { constructor(parser, pos, loc) { this.type = "" this.start = pos this.end = 0 if (parser.options.locations) this.loc = new SourceLocation(parser, loc) if (parser.options.directSourceFile) this.sourceFile = parser.options.directSourceFile if (parser.options.ranges) this.range = [pos, 0] } } // Start an AST node, attaching a start offset. const pp = Parser.prototype pp.startNode = function() { return new Node(this, this.start, this.startLoc) } pp.startNodeAt = function(pos, loc) { return new Node(this, pos, loc) } // Finish an AST node, adding `type` and `end` properties. function finishNodeAt(node, type, pos, loc) { node.type = type node.end = pos if (this.options.locations) node.loc.end = loc if (this.options.ranges) node.range[1] = pos return node } pp.finishNode = function(node, type) { return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc) } // Finish node at given position pp.finishNodeAt = function(node, type, pos, loc) { return finishNodeAt.call(this, node, type, pos, loc) } pp.copyNode = function(node) { let newNode = new Node(this, node.start, this.startLoc) for (let prop in node) newNode[prop] = node[prop] return newNode } ================================================ FILE: acorn/src/options.js ================================================ import {hasOwn, isArray} from "./util.js" import {SourceLocation} from "./locutil.js" // A second argument must be given to configure the parser process. // These options are recognized (only `ecmaVersion` is required): export const defaultOptions = { // `ecmaVersion` indicates the ECMAScript version to parse. Must be // either 3, 5, 6 (or 2015), 7 (2016), 8 (2017), 9 (2018), 10 // (2019), 11 (2020), 12 (2021), 13 (2022), 14 (2023), or `"latest"` // (the latest version the library supports). This influences // support for strict mode, the set of reserved words, and support // for new syntax features. ecmaVersion: null, // `sourceType` indicates the mode the code should be parsed in. // Can be either `"script"`, `"module"` or `"commonjs"`. This influences global // strict mode and parsing of `import` and `export` declarations. sourceType: "script", // `onInsertedSemicolon` can be a callback that will be called when // a semicolon is automatically inserted. It will be passed the // position of the inserted semicolon as an offset, and if // `locations` is enabled, it is given the location as a `{line, // column}` object as second argument. onInsertedSemicolon: null, // `onTrailingComma` is similar to `onInsertedSemicolon`, but for // trailing commas. onTrailingComma: null, // By default, reserved words are only enforced if ecmaVersion >= 5. // Set `allowReserved` to a boolean value to explicitly turn this on // an off. When this option has the value "never", reserved words // and keywords can also not be used as property names. allowReserved: null, // When enabled, a return at the top level is not considered an // error. allowReturnOutsideFunction: false, // When enabled, import/export statements are not constrained to // appearing at the top of the program, and an import.meta expression // in a script isn't considered an error. allowImportExportEverywhere: false, // By default, await identifiers are allowed to appear at the top-level scope only if ecmaVersion >= 2022. // When enabled, await identifiers are allowed to appear at the top-level scope, // but they are still not allowed in non-async functions. allowAwaitOutsideFunction: null, // When enabled, super identifiers are not constrained to // appearing in methods and do not raise an error when they appear elsewhere. allowSuperOutsideMethod: null, // When enabled, hashbang directive in the beginning of file is // allowed and treated as a line comment. Enabled by default when // `ecmaVersion` >= 2023. allowHashBang: false, // By default, the parser will verify that private properties are // only used in places where they are valid and have been declared. // Set this to false to turn such checks off. checkPrivateFields: true, // When `locations` is on, `loc` properties holding objects with // `start` and `end` properties in `{line, column}` form (with // line being 1-based and column 0-based) will be attached to the // nodes. locations: false, // A function can be passed as `onToken` option, which will // cause Acorn to call that function with object in the same // format as tokens returned from `tokenizer().getToken()`. Note // that you are not allowed to call the parser from the // callback—that will corrupt its internal state. onToken: null, // A function can be passed as `onComment` option, which will // cause Acorn to call that function with `(block, text, start, // end)` parameters whenever a comment is skipped. `block` is a // boolean indicating whether this is a block (`/* */`) comment, // `text` is the content of the comment, and `start` and `end` are // character offsets that denote the start and end of the comment. // When the `locations` option is on, two more parameters are // passed, the full `{line, column}` locations of the start and // end of the comments. Note that you are not allowed to call the // parser from the callback—that will corrupt its internal state. // When this option has an array as value, objects representing the // comments are pushed to it. onComment: null, // Nodes have their start and end characters offsets recorded in // `start` and `end` properties (directly on the node, rather than // the `loc` object, which holds line/column data. To also add a // [semi-standardized][range] `range` property holding a `[start, // end]` array with the same numbers, set the `ranges` option to // `true`. // // [range]: https://bugzilla.mozilla.org/show_bug.cgi?id=745678 ranges: false, // It is possible to parse multiple files into a single AST by // passing the tree produced by parsing the first file as // `program` option in subsequent parses. This will add the // toplevel forms of the parsed file to the `Program` (top) node // of an existing parse tree. program: null, // When `locations` is on, you can pass this to record the source // file in every node's `loc` object. sourceFile: null, // This value, if given, is stored in every node, whether // `locations` is on or off. directSourceFile: null, // When enabled, parenthesized expressions are represented by // (non-standard) ParenthesizedExpression nodes preserveParens: false } // Interpret and default an options object let warnedAboutEcmaVersion = false export function getOptions(opts) { let options = {} for (let opt in defaultOptions) options[opt] = opts && hasOwn(opts, opt) ? opts[opt] : defaultOptions[opt] if (options.ecmaVersion === "latest") { options.ecmaVersion = 1e8 } else if (options.ecmaVersion == null) { if (!warnedAboutEcmaVersion && typeof console === "object" && console.warn) { warnedAboutEcmaVersion = true console.warn("Since Acorn 8.0.0, options.ecmaVersion is required.\nDefaulting to 2020, but this will stop working in the future.") } options.ecmaVersion = 11 } else if (options.ecmaVersion >= 2015) { options.ecmaVersion -= 2009 } if (options.allowReserved == null) options.allowReserved = options.ecmaVersion < 5 if (!opts || opts.allowHashBang == null) options.allowHashBang = options.ecmaVersion >= 14 if (isArray(options.onToken)) { let tokens = options.onToken options.onToken = (token) => tokens.push(token) } if (isArray(options.onComment)) options.onComment = pushComment(options, options.onComment) if (options.sourceType === "commonjs" && options.allowAwaitOutsideFunction) throw new Error("Cannot use allowAwaitOutsideFunction with sourceType: commonjs") return options } function pushComment(options, array) { return function(block, text, start, end, startLoc, endLoc) { let comment = { type: block ? "Block" : "Line", value: text, start: start, end: end } if (options.locations) comment.loc = new SourceLocation(this, startLoc, endLoc) if (options.ranges) comment.range = [start, end] array.push(comment) } } ================================================ FILE: acorn/src/package.json ================================================ { "type": "module" } ================================================ FILE: acorn/src/parseutil.js ================================================ import {types as tt} from "./tokentype.js" import {Parser} from "./state.js" import {lineBreak, skipWhiteSpace} from "./whitespace.js" const pp = Parser.prototype // ## Parser utilities const literal = /^(?:'((?:\\[^]|[^'\\])*?)'|"((?:\\[^]|[^"\\])*?)")/ pp.strictDirective = function(start) { if (this.options.ecmaVersion < 5) return false for (;;) { // Try to find string literal. skipWhiteSpace.lastIndex = start start += skipWhiteSpace.exec(this.input)[0].length let match = literal.exec(this.input.slice(start)) if (!match) return false if ((match[1] || match[2]) === "use strict") { skipWhiteSpace.lastIndex = start + match[0].length let spaceAfter = skipWhiteSpace.exec(this.input), end = spaceAfter.index + spaceAfter[0].length let next = this.input.charAt(end) return next === ";" || next === "}" || (lineBreak.test(spaceAfter[0]) && !(/[(`.[+\-/*%<>=,?^&]/.test(next) || next === "!" && this.input.charAt(end + 1) === "=")) } start += match[0].length // Skip semicolon, if any. skipWhiteSpace.lastIndex = start start += skipWhiteSpace.exec(this.input)[0].length if (this.input[start] === ";") start++ } } // Predicate that tests whether the next token is of the given // type, and if yes, consumes it as a side effect. pp.eat = function(type) { if (this.type === type) { this.next() return true } else { return false } } // Tests whether parsed token is a contextual keyword. pp.isContextual = function(name) { return this.type === tt.name && this.value === name && !this.containsEsc } // Consumes contextual keyword if possible. pp.eatContextual = function(name) { if (!this.isContextual(name)) return false this.next() return true } // Asserts that following token is given contextual keyword. pp.expectContextual = function(name) { if (!this.eatContextual(name)) this.unexpected() } // Test whether a semicolon can be inserted at the current position. pp.canInsertSemicolon = function() { return this.type === tt.eof || this.type === tt.braceR || lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) } pp.insertSemicolon = function() { if (this.canInsertSemicolon()) { if (this.options.onInsertedSemicolon) this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc) return true } } // Consume a semicolon, or, failing that, see if we are allowed to // pretend that there is a semicolon at this position. pp.semicolon = function() { if (!this.eat(tt.semi) && !this.insertSemicolon()) this.unexpected() } pp.afterTrailingComma = function(tokType, notNext) { if (this.type === tokType) { if (this.options.onTrailingComma) this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc) if (!notNext) this.next() return true } } // Expect a token of a given type. If found, consume it, otherwise, // raise an unexpected token error. pp.expect = function(type) { this.eat(type) || this.unexpected() } // Raise an unexpected token error. pp.unexpected = function(pos) { this.raise(pos != null ? pos : this.start, "Unexpected token") } export class DestructuringErrors { constructor() { this.shorthandAssign = this.trailingComma = this.parenthesizedAssign = this.parenthesizedBind = this.doubleProto = -1 } } pp.checkPatternErrors = function(refDestructuringErrors, isAssign) { if (!refDestructuringErrors) return if (refDestructuringErrors.trailingComma > -1) this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element") let parens = isAssign ? refDestructuringErrors.parenthesizedAssign : refDestructuringErrors.parenthesizedBind if (parens > -1) this.raiseRecoverable(parens, isAssign ? "Assigning to rvalue" : "Parenthesized pattern") } pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) { if (!refDestructuringErrors) return false let {shorthandAssign, doubleProto} = refDestructuringErrors if (!andThrow) return shorthandAssign >= 0 || doubleProto >= 0 if (shorthandAssign >= 0) this.raise(shorthandAssign, "Shorthand property assignments are valid only in destructuring patterns") if (doubleProto >= 0) this.raiseRecoverable(doubleProto, "Redefinition of __proto__ property") } pp.checkYieldAwaitInDefaultParams = function() { if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos)) this.raise(this.yieldPos, "Yield expression cannot be a default value") if (this.awaitPos) this.raise(this.awaitPos, "Await expression cannot be a default value") } pp.isSimpleAssignTarget = function(expr) { if (expr.type === "ParenthesizedExpression") return this.isSimpleAssignTarget(expr.expression) return expr.type === "Identifier" || expr.type === "MemberExpression" } ================================================ FILE: acorn/src/regexp.js ================================================ import {isIdentifierStart, isIdentifierChar} from "./identifier.js" import {Parser} from "./state.js" import UNICODE_PROPERTY_VALUES from "./unicode-property-data.js" import {hasOwn, codePointToString} from "./util.js" const pp = Parser.prototype // Track disjunction structure to determine whether a duplicate // capture group name is allowed because it is in a separate branch. class BranchID { constructor(parent, base) { // Parent disjunction branch this.parent = parent // Identifies this set of sibling branches this.base = base || this } separatedFrom(alt) { // A branch is separate from another branch if they or any of // their parents are siblings in a given disjunction for (let self = this; self; self = self.parent) { for (let other = alt; other; other = other.parent) { if (self.base === other.base && self !== other) return true } } return false } sibling() { return new BranchID(this.parent, this.base) } } export class RegExpValidationState { constructor(parser) { this.parser = parser this.validFlags = `gim${parser.options.ecmaVersion >= 6 ? "uy" : ""}${parser.options.ecmaVersion >= 9 ? "s" : ""}${parser.options.ecmaVersion >= 13 ? "d" : ""}${parser.options.ecmaVersion >= 15 ? "v" : ""}` this.unicodeProperties = UNICODE_PROPERTY_VALUES[parser.options.ecmaVersion >= 14 ? 14 : parser.options.ecmaVersion] this.source = "" this.flags = "" this.start = 0 this.switchU = false this.switchV = false this.switchN = false this.pos = 0 this.lastIntValue = 0 this.lastStringValue = "" this.lastAssertionIsQuantifiable = false this.numCapturingParens = 0 this.maxBackReference = 0 this.groupNames = Object.create(null) this.backReferenceNames = [] this.branchID = null } reset(start, pattern, flags) { const unicodeSets = flags.indexOf("v") !== -1 const unicode = flags.indexOf("u") !== -1 this.start = start | 0 this.source = pattern + "" this.flags = flags if (unicodeSets && this.parser.options.ecmaVersion >= 15) { this.switchU = true this.switchV = true this.switchN = true } else { this.switchU = unicode && this.parser.options.ecmaVersion >= 6 this.switchV = false this.switchN = unicode && this.parser.options.ecmaVersion >= 9 } } raise(message) { this.parser.raiseRecoverable(this.start, `Invalid regular expression: /${this.source}/: ${message}`) } // If u flag is given, this returns the code point at the index (it combines a surrogate pair). // Otherwise, this returns the code unit of the index (can be a part of a surrogate pair). at(i, forceU = false) { const s = this.source const l = s.length if (i >= l) { return -1 } const c = s.charCodeAt(i) if (!(forceU || this.switchU) || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l) { return c } const next = s.charCodeAt(i + 1) return next >= 0xDC00 && next <= 0xDFFF ? (c << 10) + next - 0x35FDC00 : c } nextIndex(i, forceU = false) { const s = this.source const l = s.length if (i >= l) { return l } let c = s.charCodeAt(i), next if (!(forceU || this.switchU) || c <= 0xD7FF || c >= 0xE000 || i + 1 >= l || (next = s.charCodeAt(i + 1)) < 0xDC00 || next > 0xDFFF) { return i + 1 } return i + 2 } current(forceU = false) { return this.at(this.pos, forceU) } lookahead(forceU = false) { return this.at(this.nextIndex(this.pos, forceU), forceU) } advance(forceU = false) { this.pos = this.nextIndex(this.pos, forceU) } eat(ch, forceU = false) { if (this.current(forceU) === ch) { this.advance(forceU) return true } return false } eatChars(chs, forceU = false) { let pos = this.pos for (const ch of chs) { const current = this.at(pos, forceU) if (current === -1 || current !== ch) { return false } pos = this.nextIndex(pos, forceU) } this.pos = pos return true } } /** * Validate the flags part of a given RegExpLiteral. * * @param {RegExpValidationState} state The state to validate RegExp. * @returns {void} */ pp.validateRegExpFlags = function(state) { const validFlags = state.validFlags const flags = state.flags let u = false let v = false for (let i = 0; i < flags.length; i++) { const flag = flags.charAt(i) if (validFlags.indexOf(flag) === -1) { this.raise(state.start, "Invalid regular expression flag") } if (flags.indexOf(flag, i + 1) > -1) { this.raise(state.start, "Duplicate regular expression flag") } if (flag === "u") u = true if (flag === "v") v = true } if (this.options.ecmaVersion >= 15 && u && v) { this.raise(state.start, "Invalid regular expression flag") } } function hasProp(obj) { for (let _ in obj) return true return false } /** * Validate the pattern part of a given RegExpLiteral. * * @param {RegExpValidationState} state The state to validate RegExp. * @returns {void} */ pp.validateRegExpPattern = function(state) { this.regexp_pattern(state) // The goal symbol for the parse is |Pattern[~U, ~N]|. If the result of // parsing contains a |GroupName|, reparse with the goal symbol // |Pattern[~U, +N]| and use this result instead. Throw a *SyntaxError* // exception if _P_ did not conform to the grammar, if any elements of _P_ // were not matched by the parse, or if any Early Error conditions exist. if (!state.switchN && this.options.ecmaVersion >= 9 && hasProp(state.groupNames)) { state.switchN = true this.regexp_pattern(state) } } // https://www.ecma-international.org/ecma-262/8.0/#prod-Pattern pp.regexp_pattern = function(state) { state.pos = 0 state.lastIntValue = 0 state.lastStringValue = "" state.lastAssertionIsQuantifiable = false state.numCapturingParens = 0 state.maxBackReference = 0 state.groupNames = Object.create(null) state.backReferenceNames.length = 0 state.branchID = null this.regexp_disjunction(state) if (state.pos !== state.source.length) { // Make the same messages as V8. if (state.eat(0x29 /* ) */)) { state.raise("Unmatched ')'") } if (state.eat(0x5D /* ] */) || state.eat(0x7D /* } */)) { state.raise("Lone quantifier brackets") } } if (state.maxBackReference > state.numCapturingParens) { state.raise("Invalid escape") } for (const name of state.backReferenceNames) { if (!state.groupNames[name]) { state.raise("Invalid named capture referenced") } } } // https://www.ecma-international.org/ecma-262/8.0/#prod-Disjunction pp.regexp_disjunction = function(state) { let trackDisjunction = this.options.ecmaVersion >= 16 if (trackDisjunction) state.branchID = new BranchID(state.branchID, null) this.regexp_alternative(state) while (state.eat(0x7C /* | */)) { if (trackDisjunction) state.branchID = state.branchID.sibling() this.regexp_alternative(state) } if (trackDisjunction) state.branchID = state.branchID.parent // Make the same message as V8. if (this.regexp_eatQuantifier(state, true)) { state.raise("Nothing to repeat") } if (state.eat(0x7B /* { */)) { state.raise("Lone quantifier brackets") } } // https://www.ecma-international.org/ecma-262/8.0/#prod-Alternative pp.regexp_alternative = function(state) { while (state.pos < state.source.length && this.regexp_eatTerm(state)) {} } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Term pp.regexp_eatTerm = function(state) { if (this.regexp_eatAssertion(state)) { // Handle `QuantifiableAssertion Quantifier` alternative. // `state.lastAssertionIsQuantifiable` is true if the last eaten Assertion // is a QuantifiableAssertion. if (state.lastAssertionIsQuantifiable && this.regexp_eatQuantifier(state)) { // Make the same message as V8. if (state.switchU) { state.raise("Invalid quantifier") } } return true } if (state.switchU ? this.regexp_eatAtom(state) : this.regexp_eatExtendedAtom(state)) { this.regexp_eatQuantifier(state) return true } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Assertion pp.regexp_eatAssertion = function(state) { const start = state.pos state.lastAssertionIsQuantifiable = false // ^, $ if (state.eat(0x5E /* ^ */) || state.eat(0x24 /* $ */)) { return true } // \b \B if (state.eat(0x5C /* \ */)) { if (state.eat(0x42 /* B */) || state.eat(0x62 /* b */)) { return true } state.pos = start } // Lookahead / Lookbehind if (state.eat(0x28 /* ( */) && state.eat(0x3F /* ? */)) { let lookbehind = false if (this.options.ecmaVersion >= 9) { lookbehind = state.eat(0x3C /* < */) } if (state.eat(0x3D /* = */) || state.eat(0x21 /* ! */)) { this.regexp_disjunction(state) if (!state.eat(0x29 /* ) */)) { state.raise("Unterminated group") } state.lastAssertionIsQuantifiable = !lookbehind return true } } state.pos = start return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-Quantifier pp.regexp_eatQuantifier = function(state, noError = false) { if (this.regexp_eatQuantifierPrefix(state, noError)) { state.eat(0x3F /* ? */) return true } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-QuantifierPrefix pp.regexp_eatQuantifierPrefix = function(state, noError) { return ( state.eat(0x2A /* * */) || state.eat(0x2B /* + */) || state.eat(0x3F /* ? */) || this.regexp_eatBracedQuantifier(state, noError) ) } pp.regexp_eatBracedQuantifier = function(state, noError) { const start = state.pos if (state.eat(0x7B /* { */)) { let min = 0, max = -1 if (this.regexp_eatDecimalDigits(state)) { min = state.lastIntValue if (state.eat(0x2C /* , */) && this.regexp_eatDecimalDigits(state)) { max = state.lastIntValue } if (state.eat(0x7D /* } */)) { // SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-term if (max !== -1 && max < min && !noError) { state.raise("numbers out of order in {} quantifier") } return true } } if (state.switchU && !noError) { state.raise("Incomplete quantifier") } state.pos = start } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-Atom pp.regexp_eatAtom = function(state) { return ( this.regexp_eatPatternCharacters(state) || state.eat(0x2E /* . */) || this.regexp_eatReverseSolidusAtomEscape(state) || this.regexp_eatCharacterClass(state) || this.regexp_eatUncapturingGroup(state) || this.regexp_eatCapturingGroup(state) ) } pp.regexp_eatReverseSolidusAtomEscape = function(state) { const start = state.pos if (state.eat(0x5C /* \ */)) { if (this.regexp_eatAtomEscape(state)) { return true } state.pos = start } return false } pp.regexp_eatUncapturingGroup = function(state) { const start = state.pos if (state.eat(0x28 /* ( */)) { if (state.eat(0x3F /* ? */)) { if (this.options.ecmaVersion >= 16) { const addModifiers = this.regexp_eatModifiers(state) const hasHyphen = state.eat(0x2D /* - */) if (addModifiers || hasHyphen) { for (let i = 0; i < addModifiers.length; i++) { const modifier = addModifiers.charAt(i) if (addModifiers.indexOf(modifier, i + 1) > -1) { state.raise("Duplicate regular expression modifiers") } } if (hasHyphen) { const removeModifiers = this.regexp_eatModifiers(state) if (!addModifiers && !removeModifiers && state.current() === 0x3A /* : */) { state.raise("Invalid regular expression modifiers") } for (let i = 0; i < removeModifiers.length; i++) { const modifier = removeModifiers.charAt(i) if ( removeModifiers.indexOf(modifier, i + 1) > -1 || addModifiers.indexOf(modifier) > -1 ) { state.raise("Duplicate regular expression modifiers") } } } } } if (state.eat(0x3A /* : */)) { this.regexp_disjunction(state) if (state.eat(0x29 /* ) */)) { return true } state.raise("Unterminated group") } } state.pos = start } return false } pp.regexp_eatCapturingGroup = function(state) { if (state.eat(0x28 /* ( */)) { if (this.options.ecmaVersion >= 9) { this.regexp_groupSpecifier(state) } else if (state.current() === 0x3F /* ? */) { state.raise("Invalid group") } this.regexp_disjunction(state) if (state.eat(0x29 /* ) */)) { state.numCapturingParens += 1 return true } state.raise("Unterminated group") } return false } // RegularExpressionModifiers :: // [empty] // RegularExpressionModifiers RegularExpressionModifier pp.regexp_eatModifiers = function(state) { let modifiers = "" let ch = 0 while ((ch = state.current()) !== -1 && isRegularExpressionModifier(ch)) { modifiers += codePointToString(ch) state.advance() } return modifiers } // RegularExpressionModifier :: one of // `i` `m` `s` function isRegularExpressionModifier(ch) { return ch === 0x69 /* i */ || ch === 0x6d /* m */ || ch === 0x73 /* s */ } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedAtom pp.regexp_eatExtendedAtom = function(state) { return ( state.eat(0x2E /* . */) || this.regexp_eatReverseSolidusAtomEscape(state) || this.regexp_eatCharacterClass(state) || this.regexp_eatUncapturingGroup(state) || this.regexp_eatCapturingGroup(state) || this.regexp_eatInvalidBracedQuantifier(state) || this.regexp_eatExtendedPatternCharacter(state) ) } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-InvalidBracedQuantifier pp.regexp_eatInvalidBracedQuantifier = function(state) { if (this.regexp_eatBracedQuantifier(state, true)) { state.raise("Nothing to repeat") } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-SyntaxCharacter pp.regexp_eatSyntaxCharacter = function(state) { const ch = state.current() if (isSyntaxCharacter(ch)) { state.lastIntValue = ch state.advance() return true } return false } function isSyntaxCharacter(ch) { return ( ch === 0x24 /* $ */ || ch >= 0x28 /* ( */ && ch <= 0x2B /* + */ || ch === 0x2E /* . */ || ch === 0x3F /* ? */ || ch >= 0x5B /* [ */ && ch <= 0x5E /* ^ */ || ch >= 0x7B /* { */ && ch <= 0x7D /* } */ ) } // https://www.ecma-international.org/ecma-262/8.0/#prod-PatternCharacter // But eat eager. pp.regexp_eatPatternCharacters = function(state) { const start = state.pos let ch = 0 while ((ch = state.current()) !== -1 && !isSyntaxCharacter(ch)) { state.advance() } return state.pos !== start } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedPatternCharacter pp.regexp_eatExtendedPatternCharacter = function(state) { const ch = state.current() if ( ch !== -1 && ch !== 0x24 /* $ */ && !(ch >= 0x28 /* ( */ && ch <= 0x2B /* + */) && ch !== 0x2E /* . */ && ch !== 0x3F /* ? */ && ch !== 0x5B /* [ */ && ch !== 0x5E /* ^ */ && ch !== 0x7C /* | */ ) { state.advance() return true } return false } // GroupSpecifier :: // [empty] // `?` GroupName pp.regexp_groupSpecifier = function(state) { if (state.eat(0x3F /* ? */)) { if (!this.regexp_eatGroupName(state)) state.raise("Invalid group") let trackDisjunction = this.options.ecmaVersion >= 16 let known = state.groupNames[state.lastStringValue] if (known) { if (trackDisjunction) { for (let altID of known) { if (!altID.separatedFrom(state.branchID)) state.raise("Duplicate capture group name") } } else { state.raise("Duplicate capture group name") } } if (trackDisjunction) { (known || (state.groupNames[state.lastStringValue] = [])).push(state.branchID) } else { state.groupNames[state.lastStringValue] = true } } } // GroupName :: // `<` RegExpIdentifierName `>` // Note: this updates `state.lastStringValue` property with the eaten name. pp.regexp_eatGroupName = function(state) { state.lastStringValue = "" if (state.eat(0x3C /* < */)) { if (this.regexp_eatRegExpIdentifierName(state) && state.eat(0x3E /* > */)) { return true } state.raise("Invalid capture group name") } return false } // RegExpIdentifierName :: // RegExpIdentifierStart // RegExpIdentifierName RegExpIdentifierPart // Note: this updates `state.lastStringValue` property with the eaten name. pp.regexp_eatRegExpIdentifierName = function(state) { state.lastStringValue = "" if (this.regexp_eatRegExpIdentifierStart(state)) { state.lastStringValue += codePointToString(state.lastIntValue) while (this.regexp_eatRegExpIdentifierPart(state)) { state.lastStringValue += codePointToString(state.lastIntValue) } return true } return false } // RegExpIdentifierStart :: // UnicodeIDStart // `$` // `_` // `\` RegExpUnicodeEscapeSequence[+U] pp.regexp_eatRegExpIdentifierStart = function(state) { const start = state.pos const forceU = this.options.ecmaVersion >= 11 let ch = state.current(forceU) state.advance(forceU) if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state, forceU)) { ch = state.lastIntValue } if (isRegExpIdentifierStart(ch)) { state.lastIntValue = ch return true } state.pos = start return false } function isRegExpIdentifierStart(ch) { return isIdentifierStart(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */ } // RegExpIdentifierPart :: // UnicodeIDContinue // `$` // `_` // `\` RegExpUnicodeEscapeSequence[+U] // // pp.regexp_eatRegExpIdentifierPart = function(state) { const start = state.pos const forceU = this.options.ecmaVersion >= 11 let ch = state.current(forceU) state.advance(forceU) if (ch === 0x5C /* \ */ && this.regexp_eatRegExpUnicodeEscapeSequence(state, forceU)) { ch = state.lastIntValue } if (isRegExpIdentifierPart(ch)) { state.lastIntValue = ch return true } state.pos = start return false } function isRegExpIdentifierPart(ch) { return isIdentifierChar(ch, true) || ch === 0x24 /* $ */ || ch === 0x5F /* _ */ || ch === 0x200C /* */ || ch === 0x200D /* */ } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape pp.regexp_eatAtomEscape = function(state) { if ( this.regexp_eatBackReference(state) || this.regexp_eatCharacterClassEscape(state) || this.regexp_eatCharacterEscape(state) || (state.switchN && this.regexp_eatKGroupName(state)) ) { return true } if (state.switchU) { // Make the same message as V8. if (state.current() === 0x63 /* c */) { state.raise("Invalid unicode escape") } state.raise("Invalid escape") } return false } pp.regexp_eatBackReference = function(state) { const start = state.pos if (this.regexp_eatDecimalEscape(state)) { const n = state.lastIntValue if (state.switchU) { // For SyntaxError in https://www.ecma-international.org/ecma-262/8.0/#sec-atomescape if (n > state.maxBackReference) { state.maxBackReference = n } return true } if (n <= state.numCapturingParens) { return true } state.pos = start } return false } pp.regexp_eatKGroupName = function(state) { if (state.eat(0x6B /* k */)) { if (this.regexp_eatGroupName(state)) { state.backReferenceNames.push(state.lastStringValue) return true } state.raise("Invalid named reference") } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape pp.regexp_eatCharacterEscape = function(state) { return ( this.regexp_eatControlEscape(state) || this.regexp_eatCControlLetter(state) || this.regexp_eatZero(state) || this.regexp_eatHexEscapeSequence(state) || this.regexp_eatRegExpUnicodeEscapeSequence(state, false) || (!state.switchU && this.regexp_eatLegacyOctalEscapeSequence(state)) || this.regexp_eatIdentityEscape(state) ) } pp.regexp_eatCControlLetter = function(state) { const start = state.pos if (state.eat(0x63 /* c */)) { if (this.regexp_eatControlLetter(state)) { return true } state.pos = start } return false } pp.regexp_eatZero = function(state) { if (state.current() === 0x30 /* 0 */ && !isDecimalDigit(state.lookahead())) { state.lastIntValue = 0 state.advance() return true } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlEscape pp.regexp_eatControlEscape = function(state) { const ch = state.current() if (ch === 0x74 /* t */) { state.lastIntValue = 0x09 /* \t */ state.advance() return true } if (ch === 0x6E /* n */) { state.lastIntValue = 0x0A /* \n */ state.advance() return true } if (ch === 0x76 /* v */) { state.lastIntValue = 0x0B /* \v */ state.advance() return true } if (ch === 0x66 /* f */) { state.lastIntValue = 0x0C /* \f */ state.advance() return true } if (ch === 0x72 /* r */) { state.lastIntValue = 0x0D /* \r */ state.advance() return true } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlLetter pp.regexp_eatControlLetter = function(state) { const ch = state.current() if (isControlLetter(ch)) { state.lastIntValue = ch % 0x20 state.advance() return true } return false } function isControlLetter(ch) { return ( (ch >= 0x41 /* A */ && ch <= 0x5A /* Z */) || (ch >= 0x61 /* a */ && ch <= 0x7A /* z */) ) } // https://www.ecma-international.org/ecma-262/8.0/#prod-RegExpUnicodeEscapeSequence pp.regexp_eatRegExpUnicodeEscapeSequence = function(state, forceU = false) { const start = state.pos const switchU = forceU || state.switchU if (state.eat(0x75 /* u */)) { if (this.regexp_eatFixedHexDigits(state, 4)) { const lead = state.lastIntValue if (switchU && lead >= 0xD800 && lead <= 0xDBFF) { const leadSurrogateEnd = state.pos if (state.eat(0x5C /* \ */) && state.eat(0x75 /* u */) && this.regexp_eatFixedHexDigits(state, 4)) { const trail = state.lastIntValue if (trail >= 0xDC00 && trail <= 0xDFFF) { state.lastIntValue = (lead - 0xD800) * 0x400 + (trail - 0xDC00) + 0x10000 return true } } state.pos = leadSurrogateEnd state.lastIntValue = lead } return true } if ( switchU && state.eat(0x7B /* { */) && this.regexp_eatHexDigits(state) && state.eat(0x7D /* } */) && isValidUnicode(state.lastIntValue) ) { return true } if (switchU) { state.raise("Invalid unicode escape") } state.pos = start } return false } function isValidUnicode(ch) { return ch >= 0 && ch <= 0x10FFFF } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-IdentityEscape pp.regexp_eatIdentityEscape = function(state) { if (state.switchU) { if (this.regexp_eatSyntaxCharacter(state)) { return true } if (state.eat(0x2F /* / */)) { state.lastIntValue = 0x2F /* / */ return true } return false } const ch = state.current() if (ch !== 0x63 /* c */ && (!state.switchN || ch !== 0x6B /* k */)) { state.lastIntValue = ch state.advance() return true } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalEscape pp.regexp_eatDecimalEscape = function(state) { state.lastIntValue = 0 let ch = state.current() if (ch >= 0x31 /* 1 */ && ch <= 0x39 /* 9 */) { do { state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */) state.advance() } while ((ch = state.current()) >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */) return true } return false } // Return values used by character set parsing methods, needed to // forbid negation of sets that can match strings. const CharSetNone = 0 // Nothing parsed const CharSetOk = 1 // Construct parsed, cannot contain strings const CharSetString = 2 // Construct parsed, can contain strings // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClassEscape pp.regexp_eatCharacterClassEscape = function(state) { const ch = state.current() if (isCharacterClassEscape(ch)) { state.lastIntValue = -1 state.advance() return CharSetOk } let negate = false if ( state.switchU && this.options.ecmaVersion >= 9 && ((negate = ch === 0x50 /* P */) || ch === 0x70 /* p */) ) { state.lastIntValue = -1 state.advance() let result if ( state.eat(0x7B /* { */) && (result = this.regexp_eatUnicodePropertyValueExpression(state)) && state.eat(0x7D /* } */) ) { if (negate && result === CharSetString) state.raise("Invalid property name") return result } state.raise("Invalid property name") } return CharSetNone } function isCharacterClassEscape(ch) { return ( ch === 0x64 /* d */ || ch === 0x44 /* D */ || ch === 0x73 /* s */ || ch === 0x53 /* S */ || ch === 0x77 /* w */ || ch === 0x57 /* W */ ) } // UnicodePropertyValueExpression :: // UnicodePropertyName `=` UnicodePropertyValue // LoneUnicodePropertyNameOrValue pp.regexp_eatUnicodePropertyValueExpression = function(state) { const start = state.pos // UnicodePropertyName `=` UnicodePropertyValue if (this.regexp_eatUnicodePropertyName(state) && state.eat(0x3D /* = */)) { const name = state.lastStringValue if (this.regexp_eatUnicodePropertyValue(state)) { const value = state.lastStringValue this.regexp_validateUnicodePropertyNameAndValue(state, name, value) return CharSetOk } } state.pos = start // LoneUnicodePropertyNameOrValue if (this.regexp_eatLoneUnicodePropertyNameOrValue(state)) { const nameOrValue = state.lastStringValue return this.regexp_validateUnicodePropertyNameOrValue(state, nameOrValue) } return CharSetNone } pp.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) { if (!hasOwn(state.unicodeProperties.nonBinary, name)) state.raise("Invalid property name") if (!state.unicodeProperties.nonBinary[name].test(value)) state.raise("Invalid property value") } pp.regexp_validateUnicodePropertyNameOrValue = function(state, nameOrValue) { if (state.unicodeProperties.binary.test(nameOrValue)) return CharSetOk if (state.switchV && state.unicodeProperties.binaryOfStrings.test(nameOrValue)) return CharSetString state.raise("Invalid property name") } // UnicodePropertyName :: // UnicodePropertyNameCharacters pp.regexp_eatUnicodePropertyName = function(state) { let ch = 0 state.lastStringValue = "" while (isUnicodePropertyNameCharacter(ch = state.current())) { state.lastStringValue += codePointToString(ch) state.advance() } return state.lastStringValue !== "" } function isUnicodePropertyNameCharacter(ch) { return isControlLetter(ch) || ch === 0x5F /* _ */ } // UnicodePropertyValue :: // UnicodePropertyValueCharacters pp.regexp_eatUnicodePropertyValue = function(state) { let ch = 0 state.lastStringValue = "" while (isUnicodePropertyValueCharacter(ch = state.current())) { state.lastStringValue += codePointToString(ch) state.advance() } return state.lastStringValue !== "" } function isUnicodePropertyValueCharacter(ch) { return isUnicodePropertyNameCharacter(ch) || isDecimalDigit(ch) } // LoneUnicodePropertyNameOrValue :: // UnicodePropertyValueCharacters pp.regexp_eatLoneUnicodePropertyNameOrValue = function(state) { return this.regexp_eatUnicodePropertyValue(state) } // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClass pp.regexp_eatCharacterClass = function(state) { if (state.eat(0x5B /* [ */)) { const negate = state.eat(0x5E /* ^ */) const result = this.regexp_classContents(state) if (!state.eat(0x5D /* ] */)) state.raise("Unterminated character class") if (negate && result === CharSetString) state.raise("Negated character class may contain strings") return true } return false } // https://tc39.es/ecma262/#prod-ClassContents // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassRanges pp.regexp_classContents = function(state) { if (state.current() === 0x5D /* ] */) return CharSetOk if (state.switchV) return this.regexp_classSetExpression(state) this.regexp_nonEmptyClassRanges(state) return CharSetOk } // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRanges // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRangesNoDash pp.regexp_nonEmptyClassRanges = function(state) { while (this.regexp_eatClassAtom(state)) { const left = state.lastIntValue if (state.eat(0x2D /* - */) && this.regexp_eatClassAtom(state)) { const right = state.lastIntValue if (state.switchU && (left === -1 || right === -1)) { state.raise("Invalid character class") } if (left !== -1 && right !== -1 && left > right) { state.raise("Range out of order in character class") } } } } // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtom // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtomNoDash pp.regexp_eatClassAtom = function(state) { const start = state.pos if (state.eat(0x5C /* \ */)) { if (this.regexp_eatClassEscape(state)) { return true } if (state.switchU) { // Make the same message as V8. const ch = state.current() if (ch === 0x63 /* c */ || isOctalDigit(ch)) { state.raise("Invalid class escape") } state.raise("Invalid escape") } state.pos = start } const ch = state.current() if (ch !== 0x5D /* ] */) { state.lastIntValue = ch state.advance() return true } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassEscape pp.regexp_eatClassEscape = function(state) { const start = state.pos if (state.eat(0x62 /* b */)) { state.lastIntValue = 0x08 /* */ return true } if (state.switchU && state.eat(0x2D /* - */)) { state.lastIntValue = 0x2D /* - */ return true } if (!state.switchU && state.eat(0x63 /* c */)) { if (this.regexp_eatClassControlLetter(state)) { return true } state.pos = start } return ( this.regexp_eatCharacterClassEscape(state) || this.regexp_eatCharacterEscape(state) ) } // https://tc39.es/ecma262/#prod-ClassSetExpression // https://tc39.es/ecma262/#prod-ClassUnion // https://tc39.es/ecma262/#prod-ClassIntersection // https://tc39.es/ecma262/#prod-ClassSubtraction pp.regexp_classSetExpression = function(state) { let result = CharSetOk, subResult if (this.regexp_eatClassSetRange(state)) { // Continue with ClassUnion processing. } else if (subResult = this.regexp_eatClassSetOperand(state)) { if (subResult === CharSetString) result = CharSetString // https://tc39.es/ecma262/#prod-ClassIntersection const start = state.pos while (state.eatChars([0x26, 0x26] /* && */)) { if ( state.current() !== 0x26 /* & */ && (subResult = this.regexp_eatClassSetOperand(state)) ) { if (subResult !== CharSetString) result = CharSetOk continue } state.raise("Invalid character in character class") } if (start !== state.pos) return result // https://tc39.es/ecma262/#prod-ClassSubtraction while (state.eatChars([0x2D, 0x2D] /* -- */)) { if (this.regexp_eatClassSetOperand(state)) continue state.raise("Invalid character in character class") } if (start !== state.pos) return result } else { state.raise("Invalid character in character class") } // https://tc39.es/ecma262/#prod-ClassUnion for (;;) { if (this.regexp_eatClassSetRange(state)) continue subResult = this.regexp_eatClassSetOperand(state) if (!subResult) return result if (subResult === CharSetString) result = CharSetString } } // https://tc39.es/ecma262/#prod-ClassSetRange pp.regexp_eatClassSetRange = function(state) { const start = state.pos if (this.regexp_eatClassSetCharacter(state)) { const left = state.lastIntValue if (state.eat(0x2D /* - */) && this.regexp_eatClassSetCharacter(state)) { const right = state.lastIntValue if (left !== -1 && right !== -1 && left > right) { state.raise("Range out of order in character class") } return true } state.pos = start } return false } // https://tc39.es/ecma262/#prod-ClassSetOperand pp.regexp_eatClassSetOperand = function(state) { if (this.regexp_eatClassSetCharacter(state)) return CharSetOk return this.regexp_eatClassStringDisjunction(state) || this.regexp_eatNestedClass(state) } // https://tc39.es/ecma262/#prod-NestedClass pp.regexp_eatNestedClass = function(state) { const start = state.pos if (state.eat(0x5B /* [ */)) { const negate = state.eat(0x5E /* ^ */) const result = this.regexp_classContents(state) if (state.eat(0x5D /* ] */)) { if (negate && result === CharSetString) { state.raise("Negated character class may contain strings") } return result } state.pos = start } if (state.eat(0x5C /* \ */)) { const result = this.regexp_eatCharacterClassEscape(state) if (result) { return result } state.pos = start } return null } // https://tc39.es/ecma262/#prod-ClassStringDisjunction pp.regexp_eatClassStringDisjunction = function(state) { const start = state.pos if (state.eatChars([0x5C, 0x71] /* \q */)) { if (state.eat(0x7B /* { */)) { const result = this.regexp_classStringDisjunctionContents(state) if (state.eat(0x7D /* } */)) { return result } } else { // Make the same message as V8. state.raise("Invalid escape") } state.pos = start } return null } // https://tc39.es/ecma262/#prod-ClassStringDisjunctionContents pp.regexp_classStringDisjunctionContents = function(state) { let result = this.regexp_classString(state) while (state.eat(0x7C /* | */)) { if (this.regexp_classString(state) === CharSetString) result = CharSetString } return result } // https://tc39.es/ecma262/#prod-ClassString // https://tc39.es/ecma262/#prod-NonEmptyClassString pp.regexp_classString = function(state) { let count = 0 while (this.regexp_eatClassSetCharacter(state)) count++ return count === 1 ? CharSetOk : CharSetString } // https://tc39.es/ecma262/#prod-ClassSetCharacter pp.regexp_eatClassSetCharacter = function(state) { const start = state.pos if (state.eat(0x5C /* \ */)) { if ( this.regexp_eatCharacterEscape(state) || this.regexp_eatClassSetReservedPunctuator(state) ) { return true } if (state.eat(0x62 /* b */)) { state.lastIntValue = 0x08 /* */ return true } state.pos = start return false } const ch = state.current() if (ch < 0 || ch === state.lookahead() && isClassSetReservedDoublePunctuatorCharacter(ch)) return false if (isClassSetSyntaxCharacter(ch)) return false state.advance() state.lastIntValue = ch return true } // https://tc39.es/ecma262/#prod-ClassSetReservedDoublePunctuator function isClassSetReservedDoublePunctuatorCharacter(ch) { return ( ch === 0x21 /* ! */ || ch >= 0x23 /* # */ && ch <= 0x26 /* & */ || ch >= 0x2A /* * */ && ch <= 0x2C /* , */ || ch === 0x2E /* . */ || ch >= 0x3A /* : */ && ch <= 0x40 /* @ */ || ch === 0x5E /* ^ */ || ch === 0x60 /* ` */ || ch === 0x7E /* ~ */ ) } // https://tc39.es/ecma262/#prod-ClassSetSyntaxCharacter function isClassSetSyntaxCharacter(ch) { return ( ch === 0x28 /* ( */ || ch === 0x29 /* ) */ || ch === 0x2D /* - */ || ch === 0x2F /* / */ || ch >= 0x5B /* [ */ && ch <= 0x5D /* ] */ || ch >= 0x7B /* { */ && ch <= 0x7D /* } */ ) } // https://tc39.es/ecma262/#prod-ClassSetReservedPunctuator pp.regexp_eatClassSetReservedPunctuator = function(state) { const ch = state.current() if (isClassSetReservedPunctuator(ch)) { state.lastIntValue = ch state.advance() return true } return false } // https://tc39.es/ecma262/#prod-ClassSetReservedPunctuator function isClassSetReservedPunctuator(ch) { return ( ch === 0x21 /* ! */ || ch === 0x23 /* # */ || ch === 0x25 /* % */ || ch === 0x26 /* & */ || ch === 0x2C /* , */ || ch === 0x2D /* - */ || ch >= 0x3A /* : */ && ch <= 0x3E /* > */ || ch === 0x40 /* @ */ || ch === 0x60 /* ` */ || ch === 0x7E /* ~ */ ) } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassControlLetter pp.regexp_eatClassControlLetter = function(state) { const ch = state.current() if (isDecimalDigit(ch) || ch === 0x5F /* _ */) { state.lastIntValue = ch % 0x20 state.advance() return true } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence pp.regexp_eatHexEscapeSequence = function(state) { const start = state.pos if (state.eat(0x78 /* x */)) { if (this.regexp_eatFixedHexDigits(state, 2)) { return true } if (state.switchU) { state.raise("Invalid escape") } state.pos = start } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalDigits pp.regexp_eatDecimalDigits = function(state) { const start = state.pos let ch = 0 state.lastIntValue = 0 while (isDecimalDigit(ch = state.current())) { state.lastIntValue = 10 * state.lastIntValue + (ch - 0x30 /* 0 */) state.advance() } return state.pos !== start } function isDecimalDigit(ch) { return ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */ } // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigits pp.regexp_eatHexDigits = function(state) { const start = state.pos let ch = 0 state.lastIntValue = 0 while (isHexDigit(ch = state.current())) { state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch) state.advance() } return state.pos !== start } function isHexDigit(ch) { return ( (ch >= 0x30 /* 0 */ && ch <= 0x39 /* 9 */) || (ch >= 0x41 /* A */ && ch <= 0x46 /* F */) || (ch >= 0x61 /* a */ && ch <= 0x66 /* f */) ) } function hexToInt(ch) { if (ch >= 0x41 /* A */ && ch <= 0x46 /* F */) { return 10 + (ch - 0x41 /* A */) } if (ch >= 0x61 /* a */ && ch <= 0x66 /* f */) { return 10 + (ch - 0x61 /* a */) } return ch - 0x30 /* 0 */ } // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-LegacyOctalEscapeSequence // Allows only 0-377(octal) i.e. 0-255(decimal). pp.regexp_eatLegacyOctalEscapeSequence = function(state) { if (this.regexp_eatOctalDigit(state)) { const n1 = state.lastIntValue if (this.regexp_eatOctalDigit(state)) { const n2 = state.lastIntValue if (n1 <= 3 && this.regexp_eatOctalDigit(state)) { state.lastIntValue = n1 * 64 + n2 * 8 + state.lastIntValue } else { state.lastIntValue = n1 * 8 + n2 } } else { state.lastIntValue = n1 } return true } return false } // https://www.ecma-international.org/ecma-262/8.0/#prod-OctalDigit pp.regexp_eatOctalDigit = function(state) { const ch = state.current() if (isOctalDigit(ch)) { state.lastIntValue = ch - 0x30 /* 0 */ state.advance() return true } state.lastIntValue = 0 return false } function isOctalDigit(ch) { return ch >= 0x30 /* 0 */ && ch <= 0x37 /* 7 */ } // https://www.ecma-international.org/ecma-262/8.0/#prod-Hex4Digits // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigit // And HexDigit HexDigit in https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence pp.regexp_eatFixedHexDigits = function(state, length) { const start = state.pos state.lastIntValue = 0 for (let i = 0; i < length; ++i) { const ch = state.current() if (!isHexDigit(ch)) { state.pos = start return false } state.lastIntValue = 16 * state.lastIntValue + hexToInt(ch) state.advance() } return true } ================================================ FILE: acorn/src/scope.js ================================================ import {Parser} from "./state.js" import { SCOPE_VAR, SCOPE_FUNCTION, SCOPE_TOP, SCOPE_ARROW, SCOPE_SIMPLE_CATCH, BIND_LEXICAL, BIND_SIMPLE_CATCH, BIND_FUNCTION, SCOPE_CLASS_FIELD_INIT, SCOPE_CLASS_STATIC_BLOCK } from "./scopeflags.js" const pp = Parser.prototype class Scope { constructor(flags) { this.flags = flags // A list of var-declared names in the current lexical scope this.var = [] // A list of lexically-declared names in the current lexical scope this.lexical = [] // A list of lexically-declared FunctionDeclaration names in the current lexical scope this.functions = [] } } // The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names. pp.enterScope = function(flags) { this.scopeStack.push(new Scope(flags)) } pp.exitScope = function() { this.scopeStack.pop() } // The spec says: // > At the top level of a function, or script, function declarations are // > treated like var declarations rather than like lexical declarations. pp.treatFunctionsAsVarInScope = function(scope) { return (scope.flags & SCOPE_FUNCTION) || !this.inModule && (scope.flags & SCOPE_TOP) } pp.declareName = function(name, bindingType, pos) { let redeclared = false if (bindingType === BIND_LEXICAL) { const scope = this.currentScope() redeclared = scope.lexical.indexOf(name) > -1 || scope.functions.indexOf(name) > -1 || scope.var.indexOf(name) > -1 scope.lexical.push(name) if (this.inModule && (scope.flags & SCOPE_TOP)) delete this.undefinedExports[name] } else if (bindingType === BIND_SIMPLE_CATCH) { const scope = this.currentScope() scope.lexical.push(name) } else if (bindingType === BIND_FUNCTION) { const scope = this.currentScope() if (this.treatFunctionsAsVar) redeclared = scope.lexical.indexOf(name) > -1 else redeclared = scope.lexical.indexOf(name) > -1 || scope.var.indexOf(name) > -1 scope.functions.push(name) } else { for (let i = this.scopeStack.length - 1; i >= 0; --i) { const scope = this.scopeStack[i] if (scope.lexical.indexOf(name) > -1 && !((scope.flags & SCOPE_SIMPLE_CATCH) && scope.lexical[0] === name) || !this.treatFunctionsAsVarInScope(scope) && scope.functions.indexOf(name) > -1) { redeclared = true break } scope.var.push(name) if (this.inModule && (scope.flags & SCOPE_TOP)) delete this.undefinedExports[name] if (scope.flags & SCOPE_VAR) break } } if (redeclared) this.raiseRecoverable(pos, `Identifier '${name}' has already been declared`) } pp.checkLocalExport = function(id) { // scope.functions must be empty as Module code is always strict. if (this.scopeStack[0].lexical.indexOf(id.name) === -1 && this.scopeStack[0].var.indexOf(id.name) === -1) { this.undefinedExports[id.name] = id } } pp.currentScope = function() { return this.scopeStack[this.scopeStack.length - 1] } pp.currentVarScope = function() { for (let i = this.scopeStack.length - 1;; i--) { let scope = this.scopeStack[i] if (scope.flags & (SCOPE_VAR | SCOPE_CLASS_FIELD_INIT | SCOPE_CLASS_STATIC_BLOCK)) return scope } } // Could be useful for `this`, `new.target`, `super()`, `super.property`, and `super[property]`. pp.currentThisScope = function() { for (let i = this.scopeStack.length - 1;; i--) { let scope = this.scopeStack[i] if (scope.flags & (SCOPE_VAR | SCOPE_CLASS_FIELD_INIT | SCOPE_CLASS_STATIC_BLOCK) && !(scope.flags & SCOPE_ARROW)) return scope } } ================================================ FILE: acorn/src/scopeflags.js ================================================ // Each scope gets a bitset that may contain these flags export const SCOPE_TOP = 1, SCOPE_FUNCTION = 2, SCOPE_ASYNC = 4, SCOPE_GENERATOR = 8, SCOPE_ARROW = 16, SCOPE_SIMPLE_CATCH = 32, SCOPE_SUPER = 64, SCOPE_DIRECT_SUPER = 128, SCOPE_CLASS_STATIC_BLOCK = 256, SCOPE_CLASS_FIELD_INIT = 512, SCOPE_SWITCH = 1024, SCOPE_VAR = SCOPE_TOP | SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK export function functionFlags(async, generator) { return SCOPE_FUNCTION | (async ? SCOPE_ASYNC : 0) | (generator ? SCOPE_GENERATOR : 0) } // Used in checkLVal* and declareName to determine the type of a binding export const BIND_NONE = 0, // Not a binding BIND_VAR = 1, // Var-style binding BIND_LEXICAL = 2, // Let- or const-style binding BIND_FUNCTION = 3, // Function declaration BIND_SIMPLE_CATCH = 4, // Simple (identifier pattern) catch binding BIND_OUTSIDE = 5 // Special case for function names as bound inside the function ================================================ FILE: acorn/src/state.js ================================================ import {reservedWords, keywords} from "./identifier.js" import {types as tt} from "./tokentype.js" import {lineBreak} from "./whitespace.js" import {getOptions} from "./options.js" import {wordsRegexp} from "./util.js" import { SCOPE_TOP, SCOPE_FUNCTION, SCOPE_ASYNC, SCOPE_GENERATOR, SCOPE_SUPER, SCOPE_DIRECT_SUPER, SCOPE_ARROW, SCOPE_CLASS_STATIC_BLOCK, SCOPE_CLASS_FIELD_INIT, SCOPE_SWITCH } from "./scopeflags.js" export class Parser { constructor(options, input, startPos) { this.options = options = getOptions(options) this.sourceFile = options.sourceFile this.keywords = wordsRegexp(keywords[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]) let reserved = "" if (options.allowReserved !== true) { reserved = reservedWords[options.ecmaVersion >= 6 ? 6 : options.ecmaVersion === 5 ? 5 : 3] if (options.sourceType === "module") reserved += " await" } this.reservedWords = wordsRegexp(reserved) let reservedStrict = (reserved ? reserved + " " : "") + reservedWords.strict this.reservedWordsStrict = wordsRegexp(reservedStrict) this.reservedWordsStrictBind = wordsRegexp(reservedStrict + " " + reservedWords.strictBind) this.input = String(input) // Used to signal to callers of `readWord1` whether the word // contained any escape sequences. This is needed because words with // escape sequences must not be interpreted as keywords. this.containsEsc = false // Set up token state // The current position of the tokenizer in the input. if (startPos) { this.pos = startPos this.lineStart = this.input.lastIndexOf("\n", startPos - 1) + 1 this.curLine = this.input.slice(0, this.lineStart).split(lineBreak).length } else { this.pos = this.lineStart = 0 this.curLine = 1 } // Properties of the current token: // Its type this.type = tt.eof // For tokens that include more information than their type, the value this.value = null // Its start and end offset this.start = this.end = this.pos // And, if locations are used, the {line, column} object // corresponding to those offsets this.startLoc = this.endLoc = this.curPosition() // Position information for the previous token this.lastTokEndLoc = this.lastTokStartLoc = null this.lastTokStart = this.lastTokEnd = this.pos // The context stack is used to superficially track syntactic // context to predict whether a regular expression is allowed in a // given position. this.context = this.initialContext() this.exprAllowed = true // Figure out if it's a module code. this.inModule = options.sourceType === "module" this.strict = this.inModule || this.strictDirective(this.pos) // Used to signify the start of a potential arrow function this.potentialArrowAt = -1 this.potentialArrowInForAwait = false // Positions to delayed-check that yield/await does not exist in default parameters. this.yieldPos = this.awaitPos = this.awaitIdentPos = 0 // Labels in scope. this.labels = [] // Thus-far undefined exports. this.undefinedExports = Object.create(null) // If enabled, skip leading hashbang line. if (this.pos === 0 && options.allowHashBang && this.input.slice(0, 2) === "#!") this.skipLineComment(2) // Scope tracking for duplicate variable names (see scope.js) this.scopeStack = [] this.enterScope( this.options.sourceType === "commonjs" // In commonjs, the top-level scope behaves like a function scope ? SCOPE_FUNCTION : SCOPE_TOP ) // For RegExp validation this.regexpState = null // The stack of private names. // Each element has two properties: 'declared' and 'used'. // When it exited from the outermost class definition, all used private names must be declared. this.privateNameStack = [] } parse() { let node = this.options.program || this.startNode() this.nextToken() return this.parseTopLevel(node) } get inFunction() { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 } get inGenerator() { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 } get inAsync() { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 } get canAwait() { for (let i = this.scopeStack.length - 1; i >= 0; i--) { let {flags} = this.scopeStack[i] if (flags & (SCOPE_CLASS_STATIC_BLOCK | SCOPE_CLASS_FIELD_INIT)) return false if (flags & SCOPE_FUNCTION) return (flags & SCOPE_ASYNC) > 0 } return (this.inModule && this.options.ecmaVersion >= 13) || this.options.allowAwaitOutsideFunction } get allowReturn() { if (this.inFunction) return true if (this.options.allowReturnOutsideFunction && this.currentVarScope().flags & SCOPE_TOP) return true return false } get allowSuper() { const {flags} = this.currentThisScope() return (flags & SCOPE_SUPER) > 0 || this.options.allowSuperOutsideMethod } get allowDirectSuper() { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 } get treatFunctionsAsVar() { return this.treatFunctionsAsVarInScope(this.currentScope()) } get allowNewDotTarget() { for (let i = this.scopeStack.length - 1; i >= 0; i--) { let {flags} = this.scopeStack[i] if (flags & (SCOPE_CLASS_STATIC_BLOCK | SCOPE_CLASS_FIELD_INIT) || ((flags & SCOPE_FUNCTION) && !(flags & SCOPE_ARROW))) return true } return false } get allowUsing() { const {flags} = this.currentScope() if (flags & SCOPE_SWITCH) return false if (!this.inModule && flags & SCOPE_TOP) return false return true } get inClassStaticBlock() { return (this.currentVarScope().flags & SCOPE_CLASS_STATIC_BLOCK) > 0 } static extend(...plugins) { let cls = this for (let i = 0; i < plugins.length; i++) cls = plugins[i](cls) return cls } static parse(input, options) { return new this(options, input).parse() } static parseExpressionAt(input, pos, options) { let parser = new this(options, input, pos) parser.nextToken() return parser.parseExpression() } static tokenizer(input, options) { return new this(options, input) } } ================================================ FILE: acorn/src/statement.js ================================================ import {types as tt} from "./tokentype.js" import {Parser} from "./state.js" import {lineBreak, skipWhiteSpace} from "./whitespace.js" import {isIdentifierStart, isIdentifierChar, keywordRelationalOperator} from "./identifier.js" import {hasOwn, loneSurrogate} from "./util.js" import {DestructuringErrors} from "./parseutil.js" import {functionFlags, SCOPE_SIMPLE_CATCH, BIND_SIMPLE_CATCH, BIND_LEXICAL, BIND_VAR, BIND_FUNCTION, SCOPE_CLASS_STATIC_BLOCK, SCOPE_SUPER, SCOPE_CLASS_FIELD_INIT, SCOPE_SWITCH} from "./scopeflags.js" const pp = Parser.prototype // ### Statement parsing // Parse a program. Initializes the parser, reads any number of // statements, and wraps them in a Program node. Optionally takes a // `program` argument. If present, the statements will be appended // to its body instead of creating a new node. pp.parseTopLevel = function(node) { let exports = Object.create(null) if (!node.body) node.body = [] while (this.type !== tt.eof) { let stmt = this.parseStatement(null, true, exports) node.body.push(stmt) } if (this.inModule) for (let name of Object.keys(this.undefinedExports)) this.raiseRecoverable(this.undefinedExports[name].start, `Export '${name}' is not defined`) this.adaptDirectivePrologue(node.body) this.next() node.sourceType = this.options.sourceType === "commonjs" ? "script" : this.options.sourceType return this.finishNode(node, "Program") } const loopLabel = {kind: "loop"}, switchLabel = {kind: "switch"} pp.isLet = function(context) { if (this.options.ecmaVersion < 6 || !this.isContextual("let")) return false skipWhiteSpace.lastIndex = this.pos let skip = skipWhiteSpace.exec(this.input) let next = this.pos + skip[0].length, nextCh = this.fullCharCodeAt(next) // For ambiguous cases, determine if a LexicalDeclaration (or only a // Statement) is allowed here. If context is not empty then only a Statement // is allowed. However, `let [` is an explicit negative lookahead for // ExpressionStatement, so special-case it first. if (nextCh === 91 || nextCh === 92) return true // '[', '\' if (context) return false if (nextCh === 123) return true // '{' if (isIdentifierStart(nextCh)) { let start = next do { next += nextCh <= 0xffff ? 1 : 2 } while (isIdentifierChar(nextCh = this.fullCharCodeAt(next))) if (nextCh === 92) return true let ident = this.input.slice(start, next) if (!keywordRelationalOperator.test(ident)) return true } return false } // check 'async [no LineTerminator here] function' // - 'async /*foo*/ function' is OK. // - 'async /*\n*/ function' is invalid. pp.isAsyncFunction = function() { if (this.options.ecmaVersion < 8 || !this.isContextual("async")) return false skipWhiteSpace.lastIndex = this.pos let skip = skipWhiteSpace.exec(this.input) let next = this.pos + skip[0].length, after return !lineBreak.test(this.input.slice(this.pos, next)) && this.input.slice(next, next + 8) === "function" && (next + 8 === this.input.length || !(isIdentifierChar(after = this.fullCharCodeAt(next + 8)) || after === 92 /* '\' */)) } pp.isUsingKeyword = function(isAwaitUsing, isFor) { if (this.options.ecmaVersion < 17 || !this.isContextual(isAwaitUsing ? "await" : "using")) return false skipWhiteSpace.lastIndex = this.pos let skip = skipWhiteSpace.exec(this.input) let next = this.pos + skip[0].length if (lineBreak.test(this.input.slice(this.pos, next))) return false if (isAwaitUsing) { let usingEndPos = next + 5 /* using */, after if (this.input.slice(next, usingEndPos) !== "using" || usingEndPos === this.input.length || isIdentifierChar(after = this.fullCharCodeAt(usingEndPos)) || after === 92 /* '\' */ ) return false skipWhiteSpace.lastIndex = usingEndPos let skipAfterUsing = skipWhiteSpace.exec(this.input) next = usingEndPos + skipAfterUsing[0].length if (skipAfterUsing && lineBreak.test(this.input.slice(usingEndPos, next))) return false } let ch = this.fullCharCodeAt(next) if (!isIdentifierStart(ch) && ch !== 92 /* '\' */) return false let idStart = next do { next += ch <= 0xffff ? 1 : 2 } while (isIdentifierChar(ch = this.fullCharCodeAt(next))) if (ch === 92) return true let id = this.input.slice(idStart, next) if (keywordRelationalOperator.test(id) || isFor && id === "of") return false return true } pp.isAwaitUsing = function(isFor) { return this.isUsingKeyword(true, isFor) } pp.isUsing = function(isFor) { return this.isUsingKeyword(false, isFor) } // Parse a single statement. // // If expecting a statement and finding a slash operator, parse a // regular expression literal. This is to handle cases like // `if (foo) /blah/.exec(foo)`, where looking at the previous token // does not help. pp.parseStatement = function(context, topLevel, exports) { let starttype = this.type, node = this.startNode(), kind if (this.isLet(context)) { starttype = tt._var kind = "let" } // Most types of statements are recognized by the keyword they // start with. Many are trivial to parse, some require a bit of // complexity. switch (starttype) { case tt._break: case tt._continue: return this.parseBreakContinueStatement(node, starttype.keyword) case tt._debugger: return this.parseDebuggerStatement(node) case tt._do: return this.parseDoStatement(node) case tt._for: return this.parseForStatement(node) case tt._function: // Function as sole body of either an if statement or a labeled statement // works, but not when it is part of a labeled statement that is the sole // body of an if statement. if ((context && (this.strict || context !== "if" && context !== "label")) && this.options.ecmaVersion >= 6) this.unexpected() return this.parseFunctionStatement(node, false, !context) case tt._class: if (context) this.unexpected() return this.parseClass(node, true) case tt._if: return this.parseIfStatement(node) case tt._return: return this.parseReturnStatement(node) case tt._switch: return this.parseSwitchStatement(node) case tt._throw: return this.parseThrowStatement(node) case tt._try: return this.parseTryStatement(node) case tt._const: case tt._var: kind = kind || this.value if (context && kind !== "var") this.unexpected() return this.parseVarStatement(node, kind) case tt._while: return this.parseWhileStatement(node) case tt._with: return this.parseWithStatement(node) case tt.braceL: return this.parseBlock(true, node) case tt.semi: return this.parseEmptyStatement(node) case tt._export: case tt._import: if (this.options.ecmaVersion > 10 && starttype === tt._import) { skipWhiteSpace.lastIndex = this.pos let skip = skipWhiteSpace.exec(this.input) let next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next) if (nextCh === 40 || nextCh === 46) // '(' or '.' return this.parseExpressionStatement(node, this.parseExpression()) } if (!this.options.allowImportExportEverywhere) { if (!topLevel) this.raise(this.start, "'import' and 'export' may only appear at the top level") if (!this.inModule) this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'") } return starttype === tt._import ? this.parseImport(node) : this.parseExport(node, exports) // If the statement does not start with a statement keyword or a // brace, it's an ExpressionStatement or LabeledStatement. We // simply start parsing an expression, and afterwards, if the // next token is a colon and the expression was a simple // Identifier node, we switch to interpreting it as a label. default: if (this.isAsyncFunction()) { if (context) this.unexpected() this.next() return this.parseFunctionStatement(node, true, !context) } let usingKind = this.isAwaitUsing(false) ? "await using" : this.isUsing(false) ? "using" : null if (usingKind) { if (!this.allowUsing) { this.raise(this.start, "Using declaration cannot appear in the top level when source type is `script` or in the bare case statement") } if (usingKind === "await using") { if (!this.canAwait) { this.raise(this.start, "Await using cannot appear outside of async function") } this.next() } this.next() this.parseVar(node, false, usingKind) this.semicolon() return this.finishNode(node, "VariableDeclaration") } let maybeName = this.value, expr = this.parseExpression() if (starttype === tt.name && expr.type === "Identifier" && this.eat(tt.colon)) return this.parseLabeledStatement(node, maybeName, expr, context) else return this.parseExpressionStatement(node, expr) } } pp.parseBreakContinueStatement = function(node, keyword) { let isBreak = keyword === "break" this.next() if (this.eat(tt.semi) || this.insertSemicolon()) node.label = null else if (this.type !== tt.name) this.unexpected() else { node.label = this.parseIdent() this.semicolon() } // Verify that there is an actual destination to break or // continue to. let i = 0 for (; i < this.labels.length; ++i) { let lab = this.labels[i] if (node.label == null || lab.name === node.label.name) { if (lab.kind != null && (isBreak || lab.kind === "loop")) break if (node.label && isBreak) break } } if (i === this.labels.length) this.raise(node.start, "Unsyntactic " + keyword) return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement") } pp.parseDebuggerStatement = function(node) { this.next() this.semicolon() return this.finishNode(node, "DebuggerStatement") } pp.parseDoStatement = function(node) { this.next() this.labels.push(loopLabel) node.body = this.parseStatement("do") this.labels.pop() this.expect(tt._while) node.test = this.parseParenExpression() if (this.options.ecmaVersion >= 6) this.eat(tt.semi) else this.semicolon() return this.finishNode(node, "DoWhileStatement") } // Disambiguating between a `for` and a `for`/`in` or `for`/`of` // loop is non-trivial. Basically, we have to parse the init `var` // statement or expression, disallowing the `in` operator (see // the second parameter to `parseExpression`), and then check // whether the next token is `in` or `of`. When there is no init // part (semicolon immediately after the opening parenthesis), it // is a regular `for` loop. pp.parseForStatement = function(node) { this.next() let awaitAt = (this.options.ecmaVersion >= 9 && this.canAwait && this.eatContextual("await")) ? this.lastTokStart : -1 this.labels.push(loopLabel) this.enterScope(0) this.expect(tt.parenL) if (this.type === tt.semi) { if (awaitAt > -1) this.unexpected(awaitAt) return this.parseFor(node, null) } let isLet = this.isLet() if (this.type === tt._var || this.type === tt._const || isLet) { let init = this.startNode(), kind = isLet ? "let" : this.value this.next() this.parseVar(init, true, kind) this.finishNode(init, "VariableDeclaration") return this.parseForAfterInit(node, init, awaitAt) } let startsWithLet = this.isContextual("let"), isForOf = false let usingKind = this.isUsing(true) ? "using" : this.isAwaitUsing(true) ? "await using" : null if (usingKind) { let init = this.startNode() this.next() if (usingKind === "await using") { if (!this.canAwait) { this.raise(this.start, "Await using cannot appear outside of async function") } this.next() } this.parseVar(init, true, usingKind) this.finishNode(init, "VariableDeclaration") return this.parseForAfterInit(node, init, awaitAt) } let containsEsc = this.containsEsc let refDestructuringErrors = new DestructuringErrors let initPos = this.start let init = awaitAt > -1 ? this.parseExprSubscripts(refDestructuringErrors, "await") : this.parseExpression(true, refDestructuringErrors) if (this.type === tt._in || (isForOf = this.options.ecmaVersion >= 6 && this.isContextual("of"))) { if (awaitAt > -1) { // implies `ecmaVersion >= 9` (see declaration of awaitAt) if (this.type === tt._in) this.unexpected(awaitAt) node.await = true } else if (isForOf && this.options.ecmaVersion >= 8) { if (init.start === initPos && !containsEsc && init.type === "Identifier" && init.name === "async") this.unexpected() else if (this.options.ecmaVersion >= 9) node.await = false } if (startsWithLet && isForOf) this.raise(init.start, "The left-hand side of a for-of loop may not start with 'let'.") this.toAssignable(init, false, refDestructuringErrors) this.checkLValPattern(init) return this.parseForIn(node, init) } else { this.checkExpressionErrors(refDestructuringErrors, true) } if (awaitAt > -1) this.unexpected(awaitAt) return this.parseFor(node, init) } // Helper method to parse for loop after variable initialization pp.parseForAfterInit = function(node, init, awaitAt) { if ((this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init.declarations.length === 1) { if (this.options.ecmaVersion >= 9) { if (this.type === tt._in) { if (awaitAt > -1) this.unexpected(awaitAt) } else node.await = awaitAt > -1 } return this.parseForIn(node, init) } if (awaitAt > -1) this.unexpected(awaitAt) return this.parseFor(node, init) } pp.parseFunctionStatement = function(node, isAsync, declarationPosition) { this.next() return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT), false, isAsync) } pp.parseIfStatement = function(node) { this.next() node.test = this.parseParenExpression() // allow function declarations in branches, but only in non-strict mode node.consequent = this.parseStatement("if") node.alternate = this.eat(tt._else) ? this.parseStatement("if") : null return this.finishNode(node, "IfStatement") } pp.parseReturnStatement = function(node) { if (!this.allowReturn) this.raise(this.start, "'return' outside of function") this.next() // In `return` (and `break`/`continue`), the keywords with // optional arguments, we eagerly look for a semicolon or the // possibility to insert one. if (this.eat(tt.semi) || this.insertSemicolon()) node.argument = null else { node.argument = this.parseExpression(); this.semicolon() } return this.finishNode(node, "ReturnStatement") } pp.parseSwitchStatement = function(node) { this.next() node.discriminant = this.parseParenExpression() node.cases = [] this.expect(tt.braceL) this.labels.push(switchLabel) this.enterScope(SCOPE_SWITCH) // Statements under must be grouped (by label) in SwitchCase // nodes. `cur` is used to keep the node that we are currently // adding statements to. let cur for (let sawDefault = false; this.type !== tt.braceR;) { if (this.type === tt._case || this.type === tt._default) { let isCase = this.type === tt._case if (cur) this.finishNode(cur, "SwitchCase") node.cases.push(cur = this.startNode()) cur.consequent = [] this.next() if (isCase) { cur.test = this.parseExpression() } else { if (sawDefault) this.raiseRecoverable(this.lastTokStart, "Multiple default clauses") sawDefault = true cur.test = null } this.expect(tt.colon) } else { if (!cur) this.unexpected() cur.consequent.push(this.parseStatement(null)) } } this.exitScope() if (cur) this.finishNode(cur, "SwitchCase") this.next() // Closing brace this.labels.pop() return this.finishNode(node, "SwitchStatement") } pp.parseThrowStatement = function(node) { this.next() if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) this.raise(this.lastTokEnd, "Illegal newline after throw") node.argument = this.parseExpression() this.semicolon() return this.finishNode(node, "ThrowStatement") } // Reused empty array added for node fields that are always empty. const empty = [] pp.parseCatchClauseParam = function() { const param = this.parseBindingAtom() let simple = param.type === "Identifier" this.enterScope(simple ? SCOPE_SIMPLE_CATCH : 0) this.checkLValPattern(param, simple ? BIND_SIMPLE_CATCH : BIND_LEXICAL) this.expect(tt.parenR) return param } pp.parseTryStatement = function(node) { this.next() node.block = this.parseBlock() node.handler = null if (this.type === tt._catch) { let clause = this.startNode() this.next() if (this.eat(tt.parenL)) { clause.param = this.parseCatchClauseParam() } else { if (this.options.ecmaVersion < 10) this.unexpected() clause.param = null this.enterScope(0) } clause.body = this.parseBlock(false) this.exitScope() node.handler = this.finishNode(clause, "CatchClause") } node.finalizer = this.eat(tt._finally) ? this.parseBlock() : null if (!node.handler && !node.finalizer) this.raise(node.start, "Missing catch or finally clause") return this.finishNode(node, "TryStatement") } pp.parseVarStatement = function(node, kind, allowMissingInitializer) { this.next() this.parseVar(node, false, kind, allowMissingInitializer) this.semicolon() return this.finishNode(node, "VariableDeclaration") } pp.parseWhileStatement = function(node) { this.next() node.test = this.parseParenExpression() this.labels.push(loopLabel) node.body = this.parseStatement("while") this.labels.pop() return this.finishNode(node, "WhileStatement") } pp.parseWithStatement = function(node) { if (this.strict) this.raise(this.start, "'with' in strict mode") this.next() node.object = this.parseParenExpression() node.body = this.parseStatement("with") return this.finishNode(node, "WithStatement") } pp.parseEmptyStatement = function(node) { this.next() return this.finishNode(node, "EmptyStatement") } pp.parseLabeledStatement = function(node, maybeName, expr, context) { for (let label of this.labels) if (label.name === maybeName) this.raise(expr.start, "Label '" + maybeName + "' is already declared") let kind = this.type.isLoop ? "loop" : this.type === tt._switch ? "switch" : null for (let i = this.labels.length - 1; i >= 0; i--) { let label = this.labels[i] if (label.statementStart === node.start) { // Update information about previous labels on this node label.statementStart = this.start label.kind = kind } else break } this.labels.push({name: maybeName, kind, statementStart: this.start}) node.body = this.parseStatement(context ? context.indexOf("label") === -1 ? context + "label" : context : "label") this.labels.pop() node.label = expr return this.finishNode(node, "LabeledStatement") } pp.parseExpressionStatement = function(node, expr) { node.expression = expr this.semicolon() return this.finishNode(node, "ExpressionStatement") } // Parse a semicolon-enclosed block of statements, handling `"use // strict"` declarations when `allowStrict` is true (used for // function bodies). pp.parseBlock = function(createNewLexicalScope = true, node = this.startNode(), exitStrict) { node.body = [] this.expect(tt.braceL) if (createNewLexicalScope) this.enterScope(0) while (this.type !== tt.braceR) { let stmt = this.parseStatement(null) node.body.push(stmt) } if (exitStrict) this.strict = false this.next() if (createNewLexicalScope) this.exitScope() return this.finishNode(node, "BlockStatement") } // Parse a regular `for` loop. The disambiguation code in // `parseStatement` will already have parsed the init statement or // expression. pp.parseFor = function(node, init) { node.init = init this.expect(tt.semi) node.test = this.type === tt.semi ? null : this.parseExpression() this.expect(tt.semi) node.update = this.type === tt.parenR ? null : this.parseExpression() this.expect(tt.parenR) node.body = this.parseStatement("for") this.exitScope() this.labels.pop() return this.finishNode(node, "ForStatement") } // Parse a `for`/`in` and `for`/`of` loop, which are almost // same from parser's perspective. pp.parseForIn = function(node, init) { const isForIn = this.type === tt._in this.next() if ( init.type === "VariableDeclaration" && init.declarations[0].init != null && ( !isForIn || this.options.ecmaVersion < 8 || this.strict || init.kind !== "var" || init.declarations[0].id.type !== "Identifier" ) ) { this.raise( init.start, `${ isForIn ? "for-in" : "for-of" } loop variable declaration may not have an initializer` ) } node.left = init node.right = isForIn ? this.parseExpression() : this.parseMaybeAssign() this.expect(tt.parenR) node.body = this.parseStatement("for") this.exitScope() this.labels.pop() return this.finishNode(node, isForIn ? "ForInStatement" : "ForOfStatement") } // Parse a list of variable declarations. pp.parseVar = function(node, isFor, kind, allowMissingInitializer) { node.declarations = [] node.kind = kind for (;;) { let decl = this.startNode() this.parseVarId(decl, kind) if (this.eat(tt.eq)) { decl.init = this.parseMaybeAssign(isFor) } else if (!allowMissingInitializer && kind === "const" && !(this.type === tt._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) { this.unexpected() } else if (!allowMissingInitializer && (kind === "using" || kind === "await using") && this.options.ecmaVersion >= 17 && this.type !== tt._in && !this.isContextual("of")) { this.raise(this.lastTokEnd, `Missing initializer in ${kind} declaration`) } else if (!allowMissingInitializer && decl.id.type !== "Identifier" && !(isFor && (this.type === tt._in || this.isContextual("of")))) { this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value") } else { decl.init = null } node.declarations.push(this.finishNode(decl, "VariableDeclarator")) if (!this.eat(tt.comma)) break } return node } pp.parseVarId = function(decl, kind) { decl.id = kind === "using" || kind === "await using" ? this.parseIdent() : this.parseBindingAtom() this.checkLValPattern(decl.id, kind === "var" ? BIND_VAR : BIND_LEXICAL, false) } const FUNC_STATEMENT = 1, FUNC_HANGING_STATEMENT = 2, FUNC_NULLABLE_ID = 4 // Parse a function declaration or literal (depending on the // `statement & FUNC_STATEMENT`). // Remove `allowExpressionBody` for 7.0.0, as it is only called with false pp.parseFunction = function(node, statement, allowExpressionBody, isAsync, forInit) { this.initFunction(node) if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync) { if (this.type === tt.star && (statement & FUNC_HANGING_STATEMENT)) this.unexpected() node.generator = this.eat(tt.star) } if (this.options.ecmaVersion >= 8) node.async = !!isAsync if (statement & FUNC_STATEMENT) { node.id = (statement & FUNC_NULLABLE_ID) && this.type !== tt.name ? null : this.parseIdent() if (node.id && !(statement & FUNC_HANGING_STATEMENT)) // If it is a regular function declaration in sloppy mode, then it is // subject to Annex B semantics (BIND_FUNCTION). Otherwise, the binding // mode depends on properties of the current scope (see // treatFunctionsAsVar). this.checkLValSimple(node.id, (this.strict || node.generator || node.async) ? this.treatFunctionsAsVar ? BIND_VAR : BIND_LEXICAL : BIND_FUNCTION) } let oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos this.yieldPos = 0 this.awaitPos = 0 this.awaitIdentPos = 0 this.enterScope(functionFlags(node.async, node.generator)) if (!(statement & FUNC_STATEMENT)) node.id = this.type === tt.name ? this.parseIdent() : null this.parseFunctionParams(node) this.parseFunctionBody(node, allowExpressionBody, false, forInit) this.yieldPos = oldYieldPos this.awaitPos = oldAwaitPos this.awaitIdentPos = oldAwaitIdentPos return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression") } pp.parseFunctionParams = function(node) { this.expect(tt.parenL) node.params = this.parseBindingList(tt.parenR, false, this.options.ecmaVersion >= 8) this.checkYieldAwaitInDefaultParams() } // Parse a class declaration or literal (depending on the // `isStatement` parameter). pp.parseClass = function(node, isStatement) { this.next() // ecma-262 14.6 Class Definitions // A class definition is always strict mode code. const oldStrict = this.strict this.strict = true this.parseClassId(node, isStatement) this.parseClassSuper(node) const privateNameMap = this.enterClassBody() const classBody = this.startNode() let hadConstructor = false classBody.body = [] this.expect(tt.braceL) while (this.type !== tt.braceR) { const element = this.parseClassElement(node.superClass !== null) if (element) { classBody.body.push(element) if (element.type === "MethodDefinition" && element.kind === "constructor") { if (hadConstructor) this.raiseRecoverable(element.start, "Duplicate constructor in the same class") hadConstructor = true } else if (element.key && element.key.type === "PrivateIdentifier" && isPrivateNameConflicted(privateNameMap, element)) { this.raiseRecoverable(element.key.start, `Identifier '#${element.key.name}' has already been declared`) } } } this.strict = oldStrict this.next() node.body = this.finishNode(classBody, "ClassBody") this.exitClassBody() return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression") } pp.parseClassElement = function(constructorAllowsSuper) { if (this.eat(tt.semi)) return null const ecmaVersion = this.options.ecmaVersion const node = this.startNode() let keyName = "" let isGenerator = false let isAsync = false let kind = "method" let isStatic = false if (this.eatContextual("static")) { // Parse static init block if (ecmaVersion >= 13 && this.eat(tt.braceL)) { this.parseClassStaticBlock(node) return node } if (this.isClassElementNameStart() || this.type === tt.star) { isStatic = true } else { keyName = "static" } } node.static = isStatic if (!keyName && ecmaVersion >= 8 && this.eatContextual("async")) { if ((this.isClassElementNameStart() || this.type === tt.star) && !this.canInsertSemicolon()) { isAsync = true } else { keyName = "async" } } if (!keyName && (ecmaVersion >= 9 || !isAsync) && this.eat(tt.star)) { isGenerator = true } if (!keyName && !isAsync && !isGenerator) { const lastValue = this.value if (this.eatContextual("get") || this.eatContextual("set")) { if (this.isClassElementNameStart()) { kind = lastValue } else { keyName = lastValue } } } // Parse element name if (keyName) { // 'async', 'get', 'set', or 'static' were not a keyword contextually. // The last token is any of those. Make it the element name. node.computed = false node.key = this.startNodeAt(this.lastTokStart, this.lastTokStartLoc) node.key.name = keyName this.finishNode(node.key, "Identifier") } else { this.parseClassElementName(node) } // Parse element value if (ecmaVersion < 13 || this.type === tt.parenL || kind !== "method" || isGenerator || isAsync) { const isConstructor = !node.static && checkKeyName(node, "constructor") const allowsDirectSuper = isConstructor && constructorAllowsSuper // Couldn't move this check into the 'parseClassMethod' method for backward compatibility. if (isConstructor && kind !== "method") this.raise(node.key.start, "Constructor can't have get/set modifier") node.kind = isConstructor ? "constructor" : kind this.parseClassMethod(node, isGenerator, isAsync, allowsDirectSuper) } else { this.parseClassField(node) } return node } pp.isClassElementNameStart = function() { return ( this.type === tt.name || this.type === tt.privateId || this.type === tt.num || this.type === tt.string || this.type === tt.bracketL || this.type.keyword ) } pp.parseClassElementName = function(element) { if (this.type === tt.privateId) { if (this.value === "constructor") { this.raise(this.start, "Classes can't have an element named '#constructor'") } element.computed = false element.key = this.parsePrivateIdent() } else { this.parsePropertyName(element) } } pp.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper) { // Check key and flags const key = method.key if (method.kind === "constructor") { if (isGenerator) this.raise(key.start, "Constructor can't be a generator") if (isAsync) this.raise(key.start, "Constructor can't be an async method") } else if (method.static && checkKeyName(method, "prototype")) { this.raise(key.start, "Classes may not have a static property named prototype") } // Parse value const value = method.value = this.parseMethod(isGenerator, isAsync, allowsDirectSuper) // Check value if (method.kind === "get" && value.params.length !== 0) this.raiseRecoverable(value.start, "getter should have no params") if (method.kind === "set" && value.params.length !== 1) this.raiseRecoverable(value.start, "setter should have exactly one param") if (method.kind === "set" && value.params[0].type === "RestElement") this.raiseRecoverable(value.params[0].start, "Setter cannot use rest params") return this.finishNode(method, "MethodDefinition") } pp.parseClassField = function(field) { if (checkKeyName(field, "constructor")) { this.raise(field.key.start, "Classes can't have a field named 'constructor'") } else if (field.static && checkKeyName(field, "prototype")) { this.raise(field.key.start, "Classes can't have a static field named 'prototype'") } if (this.eat(tt.eq)) { // To raise SyntaxError if 'arguments' exists in the initializer. this.enterScope(SCOPE_CLASS_FIELD_INIT | SCOPE_SUPER) field.value = this.parseMaybeAssign() this.exitScope() } else { field.value = null } this.semicolon() return this.finishNode(field, "PropertyDefinition") } pp.parseClassStaticBlock = function(node) { node.body = [] let oldLabels = this.labels this.labels = [] this.enterScope(SCOPE_CLASS_STATIC_BLOCK | SCOPE_SUPER) while (this.type !== tt.braceR) { let stmt = this.parseStatement(null) node.body.push(stmt) } this.next() this.exitScope() this.labels = oldLabels return this.finishNode(node, "StaticBlock") } pp.parseClassId = function(node, isStatement) { if (this.type === tt.name) { node.id = this.parseIdent() if (isStatement) this.checkLValSimple(node.id, BIND_LEXICAL, false) } else { if (isStatement === true) this.unexpected() node.id = null } } pp.parseClassSuper = function(node) { node.superClass = this.eat(tt._extends) ? this.parseExprSubscripts(null, false) : null } pp.enterClassBody = function() { const element = {declared: Object.create(null), used: []} this.privateNameStack.push(element) return element.declared } pp.exitClassBody = function() { const {declared, used} = this.privateNameStack.pop() if (!this.options.checkPrivateFields) return const len = this.privateNameStack.length const parent = len === 0 ? null : this.privateNameStack[len - 1] for (let i = 0; i < used.length; ++i) { const id = used[i] if (!hasOwn(declared, id.name)) { if (parent) { parent.used.push(id) } else { this.raiseRecoverable(id.start, `Private field '#${id.name}' must be declared in an enclosing class`) } } } } function isPrivateNameConflicted(privateNameMap, element) { const name = element.key.name const curr = privateNameMap[name] let next = "true" if (element.type === "MethodDefinition" && (element.kind === "get" || element.kind === "set")) { next = (element.static ? "s" : "i") + element.kind } // `class { get #a(){}; static set #a(_){} }` is also conflict. if ( curr === "iget" && next === "iset" || curr === "iset" && next === "iget" || curr === "sget" && next === "sset" || curr === "sset" && next === "sget" ) { privateNameMap[name] = "true" return false } else if (!curr) { privateNameMap[name] = next return false } else { return true } } function checkKeyName(node, name) { const {computed, key} = node return !computed && ( key.type === "Identifier" && key.name === name || key.type === "Literal" && key.value === name ) } // Parses module export declaration. pp.parseExportAllDeclaration = function(node, exports) { if (this.options.ecmaVersion >= 11) { if (this.eatContextual("as")) { node.exported = this.parseModuleExportName() this.checkExport(exports, node.exported, this.lastTokStart) } else { node.exported = null } } this.expectContextual("from") if (this.type !== tt.string) this.unexpected() node.source = this.parseExprAtom() if (this.options.ecmaVersion >= 16) node.attributes = this.parseWithClause() this.semicolon() return this.finishNode(node, "ExportAllDeclaration") } pp.parseExport = function(node, exports) { this.next() // export * from '...' if (this.eat(tt.star)) { return this.parseExportAllDeclaration(node, exports) } if (this.eat(tt._default)) { // export default ... this.checkExport(exports, "default", this.lastTokStart) node.declaration = this.parseExportDefaultDeclaration() return this.finishNode(node, "ExportDefaultDeclaration") } // export var|const|let|function|class ... if (this.shouldParseExportStatement()) { node.declaration = this.parseExportDeclaration(node) if (node.declaration.type === "VariableDeclaration") this.checkVariableExport(exports, node.declaration.declarations) else this.checkExport(exports, node.declaration.id, node.declaration.id.start) node.specifiers = [] node.source = null if (this.options.ecmaVersion >= 16) node.attributes = [] } else { // export { x, y as z } [from '...'] node.declaration = null node.specifiers = this.parseExportSpecifiers(exports) if (this.eatContextual("from")) { if (this.type !== tt.string) this.unexpected() node.source = this.parseExprAtom() if (this.options.ecmaVersion >= 16) node.attributes = this.parseWithClause() } else { for (let spec of node.specifiers) { // check for keywords used as local names this.checkUnreserved(spec.local) // check if export is defined this.checkLocalExport(spec.local) if (spec.local.type === "Literal") { this.raise(spec.local.start, "A string literal cannot be used as an exported binding without `from`.") } } node.source = null if (this.options.ecmaVersion >= 16) node.attributes = [] } this.semicolon() } return this.finishNode(node, "ExportNamedDeclaration") } pp.parseExportDeclaration = function(node) { return this.parseStatement(null) } pp.parseExportDefaultDeclaration = function() { let isAsync if (this.type === tt._function || (isAsync = this.isAsyncFunction())) { let fNode = this.startNode() this.next() if (isAsync) this.next() return this.parseFunction(fNode, FUNC_STATEMENT | FUNC_NULLABLE_ID, false, isAsync) } else if (this.type === tt._class) { let cNode = this.startNode() return this.parseClass(cNode, "nullableID") } else { let declaration = this.parseMaybeAssign() this.semicolon() return declaration } } pp.checkExport = function(exports, name, pos) { if (!exports) return if (typeof name !== "string") name = name.type === "Identifier" ? name.name : name.value if (hasOwn(exports, name)) this.raiseRecoverable(pos, "Duplicate export '" + name + "'") exports[name] = true } pp.checkPatternExport = function(exports, pat) { let type = pat.type if (type === "Identifier") this.checkExport(exports, pat, pat.start) else if (type === "ObjectPattern") for (let prop of pat.properties) this.checkPatternExport(exports, prop) else if (type === "ArrayPattern") for (let elt of pat.elements) { if (elt) this.checkPatternExport(exports, elt) } else if (type === "Property") this.checkPatternExport(exports, pat.value) else if (type === "AssignmentPattern") this.checkPatternExport(exports, pat.left) else if (type === "RestElement") this.checkPatternExport(exports, pat.argument) } pp.checkVariableExport = function(exports, decls) { if (!exports) return for (let decl of decls) this.checkPatternExport(exports, decl.id) } pp.shouldParseExportStatement = function() { return this.type.keyword === "var" || this.type.keyword === "const" || this.type.keyword === "class" || this.type.keyword === "function" || this.isLet() || this.isAsyncFunction() } // Parses a comma-separated list of module exports. pp.parseExportSpecifier = function(exports) { let node = this.startNode() node.local = this.parseModuleExportName() node.exported = this.eatContextual("as") ? this.parseModuleExportName() : node.local this.checkExport( exports, node.exported, node.exported.start ) return this.finishNode(node, "ExportSpecifier") } pp.parseExportSpecifiers = function(exports) { let nodes = [], first = true // export { x, y as z } [from '...'] this.expect(tt.braceL) while (!this.eat(tt.braceR)) { if (!first) { this.expect(tt.comma) if (this.afterTrailingComma(tt.braceR)) break } else first = false nodes.push(this.parseExportSpecifier(exports)) } return nodes } // Parses import declaration. pp.parseImport = function(node) { this.next() // import '...' if (this.type === tt.string) { node.specifiers = empty node.source = this.parseExprAtom() } else { node.specifiers = this.parseImportSpecifiers() this.expectContextual("from") node.source = this.type === tt.string ? this.parseExprAtom() : this.unexpected() } if (this.options.ecmaVersion >= 16) node.attributes = this.parseWithClause() this.semicolon() return this.finishNode(node, "ImportDeclaration") } // Parses a comma-separated list of module imports. pp.parseImportSpecifier = function() { let node = this.startNode() node.imported = this.parseModuleExportName() if (this.eatContextual("as")) { node.local = this.parseIdent() } else { this.checkUnreserved(node.imported) node.local = node.imported } this.checkLValSimple(node.local, BIND_LEXICAL) return this.finishNode(node, "ImportSpecifier") } pp.parseImportDefaultSpecifier = function() { // import defaultObj, { x, y as z } from '...' let node = this.startNode() node.local = this.parseIdent() this.checkLValSimple(node.local, BIND_LEXICAL) return this.finishNode(node, "ImportDefaultSpecifier") } pp.parseImportNamespaceSpecifier = function() { let node = this.startNode() this.next() this.expectContextual("as") node.local = this.parseIdent() this.checkLValSimple(node.local, BIND_LEXICAL) return this.finishNode(node, "ImportNamespaceSpecifier") } pp.parseImportSpecifiers = function() { let nodes = [], first = true if (this.type === tt.name) { nodes.push(this.parseImportDefaultSpecifier()) if (!this.eat(tt.comma)) return nodes } if (this.type === tt.star) { nodes.push(this.parseImportNamespaceSpecifier()) return nodes } this.expect(tt.braceL) while (!this.eat(tt.braceR)) { if (!first) { this.expect(tt.comma) if (this.afterTrailingComma(tt.braceR)) break } else first = false nodes.push(this.parseImportSpecifier()) } return nodes } pp.parseWithClause = function() { let nodes = [] if (!this.eat(tt._with)) { return nodes } this.expect(tt.braceL) const attributeKeys = {} let first = true while (!this.eat(tt.braceR)) { if (!first) { this.expect(tt.comma) if (this.afterTrailingComma(tt.braceR)) break } else first = false const attr = this.parseImportAttribute() const keyName = attr.key.type === "Identifier" ? attr.key.name : attr.key.value if (hasOwn(attributeKeys, keyName)) this.raiseRecoverable(attr.key.start, "Duplicate attribute key '" + keyName + "'") attributeKeys[keyName] = true nodes.push(attr) } return nodes } pp.parseImportAttribute = function() { const node = this.startNode() node.key = this.type === tt.string ? this.parseExprAtom() : this.parseIdent(this.options.allowReserved !== "never") this.expect(tt.colon) if (this.type !== tt.string) { this.unexpected() } node.value = this.parseExprAtom() return this.finishNode(node, "ImportAttribute") } pp.parseModuleExportName = function() { if (this.options.ecmaVersion >= 13 && this.type === tt.string) { const stringLiteral = this.parseLiteral(this.value) if (loneSurrogate.test(stringLiteral.value)) { this.raise(stringLiteral.start, "An export name cannot include a lone surrogate.") } return stringLiteral } return this.parseIdent(true) } // Set `ExpressionStatement#directive` property for directive prologues. pp.adaptDirectivePrologue = function(statements) { for (let i = 0; i < statements.length && this.isDirectiveCandidate(statements[i]); ++i) { statements[i].directive = statements[i].expression.raw.slice(1, -1) } } pp.isDirectiveCandidate = function(statement) { return ( this.options.ecmaVersion >= 5 && statement.type === "ExpressionStatement" && statement.expression.type === "Literal" && typeof statement.expression.value === "string" && // Reject parenthesized strings. (this.input[statement.start] === "\"" || this.input[statement.start] === "'") ) } ================================================ FILE: acorn/src/tokencontext.js ================================================ // The algorithm used to determine whether a regexp can appear at a // given point in the program is loosely based on sweet.js' approach. // See https://github.com/mozilla/sweet.js/wiki/design import {Parser} from "./state.js" import {types as tt} from "./tokentype.js" import {lineBreak} from "./whitespace.js" export class TokContext { constructor(token, isExpr, preserveSpace, override, generator) { this.token = token this.isExpr = !!isExpr this.preserveSpace = !!preserveSpace this.override = override this.generator = !!generator } } export const types = { b_stat: new TokContext("{", false), b_expr: new TokContext("{", true), b_tmpl: new TokContext("${", false), p_stat: new TokContext("(", false), p_expr: new TokContext("(", true), q_tmpl: new TokContext("`", true, true, p => p.tryReadTemplateToken()), f_stat: new TokContext("function", false), f_expr: new TokContext("function", true), f_expr_gen: new TokContext("function", true, false, null, true), f_gen: new TokContext("function", false, false, null, true) } const pp = Parser.prototype pp.initialContext = function() { return [types.b_stat] } pp.curContext = function() { return this.context[this.context.length - 1] } pp.braceIsBlock = function(prevType) { let parent = this.curContext() if (parent === types.f_expr || parent === types.f_stat) return true if (prevType === tt.colon && (parent === types.b_stat || parent === types.b_expr)) return !parent.isExpr // The check for `tt.name && exprAllowed` detects whether we are // after a `yield` or `of` construct. See the `updateContext` for // `tt.name`. if (prevType === tt._return || prevType === tt.name && this.exprAllowed) return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) if (prevType === tt._else || prevType === tt.semi || prevType === tt.eof || prevType === tt.parenR || prevType === tt.arrow) return true if (prevType === tt.braceL) return parent === types.b_stat if (prevType === tt._var || prevType === tt._const || prevType === tt.name) return false return !this.exprAllowed } pp.inGeneratorContext = function() { for (let i = this.context.length - 1; i >= 1; i--) { let context = this.context[i] if (context.token === "function") return context.generator } return false } pp.updateContext = function(prevType) { let update, type = this.type if (type.keyword && prevType === tt.dot) this.exprAllowed = false else if (update = type.updateContext) update.call(this, prevType) else this.exprAllowed = type.beforeExpr } // Used to handle edge cases when token context could not be inferred correctly during tokenization phase pp.overrideContext = function(tokenCtx) { if (this.curContext() !== tokenCtx) { this.context[this.context.length - 1] = tokenCtx } } // Token-specific context update code tt.parenR.updateContext = tt.braceR.updateContext = function() { if (this.context.length === 1) { this.exprAllowed = true return } let out = this.context.pop() if (out === types.b_stat && this.curContext().token === "function") { out = this.context.pop() } this.exprAllowed = !out.isExpr } tt.braceL.updateContext = function(prevType) { this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr) this.exprAllowed = true } tt.dollarBraceL.updateContext = function() { this.context.push(types.b_tmpl) this.exprAllowed = true } tt.parenL.updateContext = function(prevType) { let statementParens = prevType === tt._if || prevType === tt._for || prevType === tt._with || prevType === tt._while this.context.push(statementParens ? types.p_stat : types.p_expr) this.exprAllowed = true } tt.incDec.updateContext = function() { // tokExprAllowed stays unchanged } tt._function.updateContext = tt._class.updateContext = function(prevType) { if (prevType.beforeExpr && prevType !== tt._else && !(prevType === tt.semi && this.curContext() !== types.p_stat) && !(prevType === tt._return && lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) && !((prevType === tt.colon || prevType === tt.braceL) && this.curContext() === types.b_stat)) this.context.push(types.f_expr) else this.context.push(types.f_stat) this.exprAllowed = false } tt.colon.updateContext = function() { if (this.curContext().token === "function") this.context.pop() this.exprAllowed = true } tt.backQuote.updateContext = function() { if (this.curContext() === types.q_tmpl) this.context.pop() else this.context.push(types.q_tmpl) this.exprAllowed = false } tt.star.updateContext = function(prevType) { if (prevType === tt._function) { let index = this.context.length - 1 if (this.context[index] === types.f_expr) this.context[index] = types.f_expr_gen else this.context[index] = types.f_gen } this.exprAllowed = true } tt.name.updateContext = function(prevType) { let allowed = false if (this.options.ecmaVersion >= 6 && prevType !== tt.dot) { if (this.value === "of" && !this.exprAllowed || this.value === "yield" && this.inGeneratorContext()) allowed = true } this.exprAllowed = allowed } ================================================ FILE: acorn/src/tokenize.js ================================================ import {isIdentifierStart, isIdentifierChar} from "./identifier.js" import {types as tt, keywords as keywordTypes} from "./tokentype.js" import {Parser} from "./state.js" import {SourceLocation} from "./locutil.js" import {RegExpValidationState} from "./regexp.js" import {lineBreak, nextLineBreak, isNewLine, nonASCIIwhitespace} from "./whitespace.js" import {codePointToString} from "./util.js" // Object type used to represent tokens. Note that normally, tokens // simply exist as properties on the parser object. This is only // used for the onToken callback and the external tokenizer. export class Token { constructor(p) { this.type = p.type this.value = p.value this.start = p.start this.end = p.end if (p.options.locations) this.loc = new SourceLocation(p, p.startLoc, p.endLoc) if (p.options.ranges) this.range = [p.start, p.end] } } // ## Tokenizer const pp = Parser.prototype // Move to the next token pp.next = function(ignoreEscapeSequenceInKeyword) { if (!ignoreEscapeSequenceInKeyword && this.type.keyword && this.containsEsc) this.raiseRecoverable(this.start, "Escape sequence in keyword " + this.type.keyword) if (this.options.onToken) this.options.onToken(new Token(this)) this.lastTokEnd = this.end this.lastTokStart = this.start this.lastTokEndLoc = this.endLoc this.lastTokStartLoc = this.startLoc this.nextToken() } pp.getToken = function() { this.next() return new Token(this) } // If we're in an ES6 environment, make parsers iterable if (typeof Symbol !== "undefined") pp[Symbol.iterator] = function() { return { next: () => { let token = this.getToken() return { done: token.type === tt.eof, value: token } } } } // Toggle strict mode. Re-reads the next number or string to please // pedantic tests (`"use strict"; 010;` should fail). // Read a single token, updating the parser object's token-related // properties. pp.nextToken = function() { let curContext = this.curContext() if (!curContext || !curContext.preserveSpace) this.skipSpace() this.start = this.pos if (this.options.locations) this.startLoc = this.curPosition() if (this.pos >= this.input.length) return this.finishToken(tt.eof) if (curContext.override) return curContext.override(this) else this.readToken(this.fullCharCodeAtPos()) } pp.readToken = function(code) { // Identifier or keyword. '\uXXXX' sequences are allowed in // identifiers, so '\' also dispatches to that. if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */) return this.readWord() return this.getTokenFromCode(code) } pp.fullCharCodeAt = function(pos) { let code = this.input.charCodeAt(pos) if (code <= 0xd7ff || code >= 0xdc00) return code let next = this.input.charCodeAt(pos + 1) return next <= 0xdbff || next >= 0xe000 ? code : (code << 10) + next - 0x35fdc00 } pp.fullCharCodeAtPos = function() { return this.fullCharCodeAt(this.pos) } pp.skipBlockComment = function() { let startLoc = this.options.onComment && this.curPosition() let start = this.pos, end = this.input.indexOf("*/", this.pos += 2) if (end === -1) this.raise(this.pos - 2, "Unterminated comment") this.pos = end + 2 if (this.options.locations) { for (let nextBreak, pos = start; (nextBreak = nextLineBreak(this.input, pos, this.pos)) > -1;) { ++this.curLine pos = this.lineStart = nextBreak } } if (this.options.onComment) this.options.onComment(true, this.input.slice(start + 2, end), start, this.pos, startLoc, this.curPosition()) } pp.skipLineComment = function(startSkip) { let start = this.pos let startLoc = this.options.onComment && this.curPosition() let ch = this.input.charCodeAt(this.pos += startSkip) while (this.pos < this.input.length && !isNewLine(ch)) { ch = this.input.charCodeAt(++this.pos) } if (this.options.onComment) this.options.onComment(false, this.input.slice(start + startSkip, this.pos), start, this.pos, startLoc, this.curPosition()) } // Called at the start of the parse and after every token. Skips // whitespace and comments, and. pp.skipSpace = function() { loop: while (this.pos < this.input.length) { let ch = this.input.charCodeAt(this.pos) switch (ch) { case 32: case 160: // ' ' ++this.pos break case 13: if (this.input.charCodeAt(this.pos + 1) === 10) { ++this.pos } case 10: case 8232: case 8233: ++this.pos if (this.options.locations) { ++this.curLine this.lineStart = this.pos } break case 47: // '/' switch (this.input.charCodeAt(this.pos + 1)) { case 42: // '*' this.skipBlockComment() break case 47: this.skipLineComment(2) break default: break loop } break default: if (ch > 8 && ch < 14 || ch >= 5760 && nonASCIIwhitespace.test(String.fromCharCode(ch))) { ++this.pos } else { break loop } } } } // Called at the end of every token. Sets `end`, `val`, and // maintains `context` and `exprAllowed`, and skips the space after // the token, so that the next one's `start` will point at the // right position. pp.finishToken = function(type, val) { this.end = this.pos if (this.options.locations) this.endLoc = this.curPosition() let prevType = this.type this.type = type this.value = val this.updateContext(prevType) } // ### Token reading // This is the function that is called to fetch the next token. It // is somewhat obscure, because it works in character codes rather // than characters, and because operator parsing has been inlined // into it. // // All in the name of speed. // pp.readToken_dot = function() { let next = this.input.charCodeAt(this.pos + 1) if (next >= 48 && next <= 57) return this.readNumber(true) let next2 = this.input.charCodeAt(this.pos + 2) if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.' this.pos += 3 return this.finishToken(tt.ellipsis) } else { ++this.pos return this.finishToken(tt.dot) } } pp.readToken_slash = function() { // '/' let next = this.input.charCodeAt(this.pos + 1) if (this.exprAllowed) { ++this.pos; return this.readRegexp() } if (next === 61) return this.finishOp(tt.assign, 2) return this.finishOp(tt.slash, 1) } pp.readToken_mult_modulo_exp = function(code) { // '%*' let next = this.input.charCodeAt(this.pos + 1) let size = 1 let tokentype = code === 42 ? tt.star : tt.modulo // exponentiation operator ** and **= if (this.options.ecmaVersion >= 7 && code === 42 && next === 42) { ++size tokentype = tt.starstar next = this.input.charCodeAt(this.pos + 2) } if (next === 61) return this.finishOp(tt.assign, size + 1) return this.finishOp(tokentype, size) } pp.readToken_pipe_amp = function(code) { // '|&' let next = this.input.charCodeAt(this.pos + 1) if (next === code) { if (this.options.ecmaVersion >= 12) { let next2 = this.input.charCodeAt(this.pos + 2) if (next2 === 61) return this.finishOp(tt.assign, 3) } return this.finishOp(code === 124 ? tt.logicalOR : tt.logicalAND, 2) } if (next === 61) return this.finishOp(tt.assign, 2) return this.finishOp(code === 124 ? tt.bitwiseOR : tt.bitwiseAND, 1) } pp.readToken_caret = function() { // '^' let next = this.input.charCodeAt(this.pos + 1) if (next === 61) return this.finishOp(tt.assign, 2) return this.finishOp(tt.bitwiseXOR, 1) } pp.readToken_plus_min = function(code) { // '+-' let next = this.input.charCodeAt(this.pos + 1) if (next === code) { if (next === 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 62 && (this.lastTokEnd === 0 || lineBreak.test(this.input.slice(this.lastTokEnd, this.pos)))) { // A `-->` line comment this.skipLineComment(3) this.skipSpace() return this.nextToken() } return this.finishOp(tt.incDec, 2) } if (next === 61) return this.finishOp(tt.assign, 2) return this.finishOp(tt.plusMin, 1) } pp.readToken_lt_gt = function(code) { // '<>' let next = this.input.charCodeAt(this.pos + 1) let size = 1 if (next === code) { size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2 if (this.input.charCodeAt(this.pos + size) === 61) return this.finishOp(tt.assign, size + 1) return this.finishOp(tt.bitShift, size) } if (next === 33 && code === 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 45 && this.input.charCodeAt(this.pos + 3) === 45) { // `` * * * #### `templateNamespace` * String representing the document type used by the markup in the template. * AngularJS needs this information as those elements need to be created and cloned * in a special way when they are defined outside their usual containers like `` and ``. * * * `html` - All root nodes in the template are HTML. Root nodes may also be * top-level elements such as `` or ``. * * `svg` - The root nodes in the template are SVG elements (excluding ``). * * `math` - The root nodes in the template are MathML elements (excluding ``). * * If no `templateNamespace` is specified, then the namespace is considered to be `html`. * * #### `template` * HTML markup that may: * * Replace the contents of the directive's element (default). * * Replace the directive's element itself (if `replace` is true - DEPRECATED). * * Wrap the contents of the directive's element (if `transclude` is true). * * Value may be: * * * A string. For example `
{{delete_str}}
`. * * A function which takes two arguments `tElement` and `tAttrs` (described in the `compile` * function api below) and returns a string value. * * * #### `templateUrl` * This is similar to `template` but the template is loaded from the specified URL, asynchronously. * * Because template loading is asynchronous the compiler will suspend compilation of directives on that element * for later when the template has been resolved. In the meantime it will continue to compile and link * sibling and parent elements as though this element had not contained any directives. * * The compiler does not suspend the entire compilation to wait for templates to be loaded because this * would result in the whole app "stalling" until all templates are loaded asynchronously - even in the * case when only one deeply nested directive has `templateUrl`. * * Template loading is asynchronous even if the template has been preloaded into the {@link $templateCache} * * You can specify `templateUrl` as a string representing the URL or as a function which takes two * arguments `tElement` and `tAttrs` (described in the `compile` function api below) and returns * a string value representing the url. In either case, the template URL is passed through {@link * $sce#getTrustedResourceUrl $sce.getTrustedResourceUrl}. * * * #### `replace` ([*DEPRECATED*!], will be removed in next major release - i.e. v2.0) * specify what the template should replace. Defaults to `false`. * * * `true` - the template will replace the directive's element. * * `false` - the template will replace the contents of the directive's element. * * The replacement process migrates all of the attributes / classes from the old element to the new * one. See the {@link guide/directive#template-expanding-directive * Directives Guide} for an example. * * There are very few scenarios where element replacement is required for the application function, * the main one being reusable custom components that are used within SVG contexts * (because SVG doesn't work with custom elements in the DOM tree). * * #### `transclude` * Extract the contents of the element where the directive appears and make it available to the directive. * The contents are compiled and provided to the directive as a **transclusion function**. See the * {@link $compile#transclusion Transclusion} section below. * * * #### `compile` * * ```js * function compile(tElement, tAttrs, transclude) { ... } * ``` * * The compile function deals with transforming the template DOM. Since most directives do not do * template transformation, it is not used often. The compile function takes the following arguments: * * * `tElement` - template element - The element where the directive has been declared. It is * safe to do template transformation on the element and child elements only. * * * `tAttrs` - template attributes - Normalized list of attributes declared on this element shared * between all directive compile functions. * * * `transclude` - [*DEPRECATED*!] A transclude linking function: `function(scope, cloneLinkingFn)` * *
* **Note:** The template instance and the link instance may be different objects if the template has * been cloned. For this reason it is **not** safe to do anything other than DOM transformations that * apply to all cloned DOM nodes within the compile function. Specifically, DOM listener registration * should be done in a linking function rather than in a compile function. *
*
* **Note:** The compile function cannot handle directives that recursively use themselves in their * own templates or compile functions. Compiling these directives results in an infinite loop and * stack overflow errors. * * This can be avoided by manually using $compile in the postLink function to imperatively compile * a directive's template instead of relying on automatic template compilation via `template` or * `templateUrl` declaration or manual compilation inside the compile function. *
* *
* **Note:** The `transclude` function that is passed to the compile function is deprecated, as it * e.g. does not know about the right outer scope. Please use the transclude function that is passed * to the link function instead. *
* A compile function can have a return value which can be either a function or an object. * * * returning a (post-link) function - is equivalent to registering the linking function via the * `link` property of the config object when the compile function is empty. * * * returning an object with function(s) registered via `pre` and `post` properties - allows you to * control when a linking function should be called during the linking phase. See info about * pre-linking and post-linking functions below. * * * #### `link` * This property is used only if the `compile` property is not defined. * * ```js * function link(scope, iElement, iAttrs, controller, transcludeFn) { ... } * ``` * * The link function is responsible for registering DOM listeners as well as updating the DOM. It is * executed after the template has been cloned. This is where most of the directive logic will be * put. * * * `scope` - {@link ng.$rootScope.Scope Scope} - The scope to be used by the * directive for registering {@link ng.$rootScope.Scope#$watch watches}. * * * `iElement` - instance element - The element where the directive is to be used. It is safe to * manipulate the children of the element only in `postLink` function since the children have * already been linked. * * * `iAttrs` - instance attributes - Normalized list of attributes declared on this element shared * between all directive linking functions. * * * `controller` - the directive's required controller instance(s) - Instances are shared * among all directives, which allows the directives to use the controllers as a communication * channel. The exact value depends on the directive's `require` property: * * no controller(s) required: the directive's own controller, or `undefined` if it doesn't have one * * `string`: the controller instance * * `array`: array of controller instances * * If a required controller cannot be found, and it is optional, the instance is `null`, * otherwise the {@link error:$compile:ctreq Missing Required Controller} error is thrown. * * Note that you can also require the directive's own controller - it will be made available like * any other controller. * * * `transcludeFn` - A transclude linking function pre-bound to the correct transclusion scope. * This is the same as the `$transclude` parameter of directive controllers, * see {@link ng.$compile#-controller- the controller section for details}. * `function([scope], cloneLinkingFn, futureParentElement)`. * * #### Pre-linking function * * Executed before the child elements are linked. Not safe to do DOM transformation since the * compiler linking function will fail to locate the correct elements for linking. * * #### Post-linking function * * Executed after the child elements are linked. * * Note that child elements that contain `templateUrl` directives will not have been compiled * and linked since they are waiting for their template to load asynchronously and their own * compilation and linking has been suspended until that occurs. * * It is safe to do DOM transformation in the post-linking function on elements that are not waiting * for their async templates to be resolved. * * * ### Transclusion * * Transclusion is the process of extracting a collection of DOM elements from one part of the DOM and * copying them to another part of the DOM, while maintaining their connection to the original AngularJS * scope from where they were taken. * * Transclusion is used (often with {@link ngTransclude}) to insert the * original contents of a directive's element into a specified place in the template of the directive. * The benefit of transclusion, over simply moving the DOM elements manually, is that the transcluded * content has access to the properties on the scope from which it was taken, even if the directive * has isolated scope. * See the {@link guide/directive#creating-a-directive-that-wraps-other-elements Directives Guide}. * * This makes it possible for the widget to have private state for its template, while the transcluded * content has access to its originating scope. * *
* **Note:** When testing an element transclude directive you must not place the directive at the root of the * DOM fragment that is being compiled. See {@link guide/unit-testing#testing-transclusion-directives * Testing Transclusion Directives}. *
* * There are three kinds of transclusion depending upon whether you want to transclude just the contents of the * directive's element, the entire element or multiple parts of the element contents: * * * `true` - transclude the content (i.e. the child nodes) of the directive's element. * * `'element'` - transclude the whole of the directive's element including any directives on this * element that defined at a lower priority than this directive. When used, the `template` * property is ignored. * * **`{...}` (an object hash):** - map elements of the content onto transclusion "slots" in the template. * * **Mult-slot transclusion** is declared by providing an object for the `transclude` property. * * This object is a map where the keys are the name of the slot to fill and the value is an element selector * used to match the HTML to the slot. The element selector should be in normalized form (e.g. `myElement`) * and will match the standard element variants (e.g. `my-element`, `my:element`, `data-my-element`, etc). * * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives} * * If the element selector is prefixed with a `?` then that slot is optional. * * For example, the transclude object `{ slotA: '?myCustomElement' }` maps `` elements to * the `slotA` slot, which can be accessed via the `$transclude` function or via the {@link ngTransclude} directive. * * Slots that are not marked as optional (`?`) will trigger a compile time error if there are no matching elements * in the transclude content. If you wish to know if an optional slot was filled with content, then you can call * `$transclude.isSlotFilled(slotName)` on the transclude function passed to the directive's link function and * injectable into the directive's controller. * * * #### Transclusion Functions * * When a directive requests transclusion, the compiler extracts its contents and provides a **transclusion * function** to the directive's `link` function and `controller`. This transclusion function is a special * **linking function** that will return the compiled contents linked to a new transclusion scope. * *
* If you are just using {@link ngTransclude} then you don't need to worry about this function, since * ngTransclude will deal with it for us. *
* * If you want to manually control the insertion and removal of the transcluded content in your directive * then you must use this transclude function. When you call a transclude function it returns a a jqLite/JQuery * object that contains the compiled DOM, which is linked to the correct transclusion scope. * * When you call a transclusion function you can pass in a **clone attach function**. This function accepts * two parameters, `function(clone, scope) { ... }`, where the `clone` is a fresh compiled copy of your transcluded * content and the `scope` is the newly created transclusion scope, which the clone will be linked to. * *
* **Best Practice**: Always provide a `cloneFn` (clone attach function) when you call a transclude function * since you then get a fresh clone of the original DOM and also have access to the new transclusion scope. *
* * It is normal practice to attach your transcluded content (`clone`) to the DOM inside your **clone * attach function**: * * ```js * var transcludedContent, transclusionScope; * * $transclude(function(clone, scope) { * element.append(clone); * transcludedContent = clone; * transclusionScope = scope; * }); * ``` * * Later, if you want to remove the transcluded content from your DOM then you should also destroy the * associated transclusion scope: * * ```js * transcludedContent.remove(); * transclusionScope.$destroy(); * ``` * *
* **Best Practice**: if you intend to add and remove transcluded content manually in your directive * (by calling the transclude function to get the DOM and calling `element.remove()` to remove it), * then you are also responsible for calling `$destroy` on the transclusion scope. *
* * The built-in DOM manipulation directives, such as {@link ngIf}, {@link ngSwitch} and {@link ngRepeat} * automatically destroy their transcluded clones as necessary so you do not need to worry about this if * you are simply using {@link ngTransclude} to inject the transclusion into your directive. * * * #### Transclusion Scopes * * When you call a transclude function it returns a DOM fragment that is pre-bound to a **transclusion * scope**. This scope is special, in that it is a child of the directive's scope (and so gets destroyed * when the directive's scope gets destroyed) but it inherits the properties of the scope from which it * was taken. * * For example consider a directive that uses transclusion and isolated scope. The DOM hierarchy might look * like this: * * ```html *
*
*
*
*
*
* ``` * * The `$parent` scope hierarchy will look like this: * ``` - $rootScope - isolate - transclusion ``` * * but the scopes will inherit prototypically from different scopes to their `$parent`. * ``` - $rootScope - transclusion - isolate ``` * * * ### Attributes * * The {@link ng.$compile.directive.Attributes Attributes} object - passed as a parameter in the * `link()` or `compile()` functions. It has a variety of uses. * * * *Accessing normalized attribute names:* Directives like 'ngBind' can be expressed in many ways: * 'ng:bind', `data-ng-bind`, or 'x-ng-bind'. The attributes object allows for normalized access * to the attributes. * * * *Directive inter-communication:* All directives share the same instance of the attributes * object which allows the directives to use the attributes object as inter directive * communication. * * * *Supports interpolation:* Interpolation attributes are assigned to the attribute object * allowing other directives to read the interpolated value. * * * *Observing interpolated attributes:* Use `$observe` to observe the value changes of attributes * that contain interpolation (e.g. `src="{{bar}}"`). Not only is this very efficient but it's also * the only way to easily get the actual value because during the linking phase the interpolation * hasn't been evaluated yet and so the value is at this time set to `undefined`. * * ```js * function linkingFn(scope, elm, attrs, ctrl) { * // get the attribute value * console.log(attrs.ngModel); * * // change the attribute * attrs.$set('ngModel', 'new value'); * * // observe changes to interpolated attribute * attrs.$observe('ngModel', function(value) { * console.log('ngModel has changed value to ' + value); * }); * } * ``` * * ## Example * *
* **Note**: Typically directives are registered with `module.directive`. The example below is * to illustrate how `$compile` works. *
*


it('should auto compile', function() { var textarea = $('textarea'); var output = $('div[compile]'); // The initial state reads 'Hello Angular'. expect(output.getText()).toBe('Hello Angular'); textarea.clear(); textarea.sendKeys('{{name}}!'); expect(output.getText()).toBe('Angular!'); }); * * * @param {string|DOMElement} element Element or HTML string to compile into a template function. * @param {function(angular.Scope, cloneAttachFn=)} transclude function available to directives - DEPRECATED. * *
* **Note:** Passing a `transclude` function to the $compile function is deprecated, as it * e.g. will not use the right outer scope. Please pass the transclude function as a * `parentBoundTranscludeFn` to the link function instead. *
* * @param {number} maxPriority only apply directives lower than given priority (Only effects the * root element(s), not their children) * @returns {function(scope, cloneAttachFn=, options=)} a link function which is used to bind template * (a DOM element/tree) to a scope. Where: * * * `scope` - A {@link ng.$rootScope.Scope Scope} to bind to. * * `cloneAttachFn` - If `cloneAttachFn` is provided, then the link function will clone the * `template` and call the `cloneAttachFn` function allowing the caller to attach the * cloned elements to the DOM document at the appropriate place. The `cloneAttachFn` is * called as:
`cloneAttachFn(clonedElement, scope)` where: * * * `clonedElement` - is a clone of the original `element` passed into the compiler. * * `scope` - is the current scope with which the linking function is working with. * * * `options` - An optional object hash with linking options. If `options` is provided, then the following * keys may be used to control linking behavior: * * * `parentBoundTranscludeFn` - the transclude function made available to * directives; if given, it will be passed through to the link functions of * directives found in `element` during compilation. * * `transcludeControllers` - an object hash with keys that map controller names * to a hash with the key `instance`, which maps to the controller instance; * if given, it will make the controllers available to directives on the compileNode: * ``` * { * parent: { * instance: parentControllerInstance * } * } * ``` * * `futureParentElement` - defines the parent to which the `cloneAttachFn` will add * the cloned elements; only needed for transcludes that are allowed to contain non html * elements (e.g. SVG elements). See also the directive.controller property. * * Calling the linking function returns the element of the template. It is either the original * element passed in, or the clone of the element if the `cloneAttachFn` is provided. * * After linking the view is not updated until after a call to $digest which typically is done by * Angular automatically. * * If you need access to the bound view, there are two ways to do it: * * - If you are not asking the linking function to clone the template, create the DOM element(s) * before you send them to the compiler and keep this reference around. * ```js * var element = $compile('

{{total}}

')(scope); * ``` * * - if on the other hand, you need the element to be cloned, the view reference from the original * example would not point to the clone, but rather to the original template that was cloned. In * this case, you can access the clone via the cloneAttachFn: * ```js * var templateElement = angular.element('

{{total}}

'), * scope = ....; * * var clonedElement = $compile(templateElement)(scope, function(clonedElement, scope) { * //attach the clone to DOM document at the right place * }); * * //now we have reference to the cloned DOM via `clonedElement` * ``` * * * For information on how the compiler works, see the * {@link guide/compiler Angular HTML Compiler} section of the Developer Guide. * * @knownIssue * * ### Double Compilation * Double compilation occurs when an already compiled part of the DOM gets compiled again. This is an undesired effect and can lead to misbehaving directives, performance issues, and memory leaks. Refer to the Compiler Guide {@link guide/compiler#double-compilation-and-how-to-avoid-it section on double compilation} for an in-depth explanation and ways to avoid it. * */ var $compileMinErr = minErr('$compile'); function UNINITIALIZED_VALUE() {} var _UNINITIALIZED_VALUE = new UNINITIALIZED_VALUE(); /** * @ngdoc provider * @name $compileProvider * * @description */ $CompileProvider.$inject = ['$provide', '$$sanitizeUriProvider']; /** @this */ function $CompileProvider($provide, $$sanitizeUriProvider) { var hasDirectives = {}, Suffix = 'Directive', COMMENT_DIRECTIVE_REGEXP = /^\s*directive:\s*([\w-]+)\s+(.*)$/, CLASS_DIRECTIVE_REGEXP = /(([\w-]+)(?::([^;]+))?;?)/, ALL_OR_NOTHING_ATTRS = makeMap('ngSrc,ngSrcset,src,srcset'), REQUIRE_PREFIX_REGEXP = /^(?:(\^\^?)?(\?)?(\^\^?)?)?/; // Ref: http://developers.whatwg.org/webappapis.html#event-handler-idl-attributes // The assumption is that future DOM event attribute names will begin with // 'on' and be composed of only English letters. var EVENT_HANDLER_ATTR_REGEXP = /^(on[a-z]+|formaction)$/; var bindingCache = createMap(); function parseIsolateBindings(scope, directiveName, isController) { var LOCAL_REGEXP = /^\s*([@&<]|=(\*?))(\??)\s*(\w*)\s*$/; var bindings = createMap(); forEach(scope, function(definition, scopeName) { if (definition in bindingCache) { bindings[scopeName] = bindingCache[definition]; return; } var match = definition.match(LOCAL_REGEXP); if (!match) { throw $compileMinErr('iscp', 'Invalid {3} for directive \'{0}\'.' + ' Definition: {... {1}: \'{2}\' ...}', directiveName, scopeName, definition, (isController ? 'controller bindings definition' : 'isolate scope definition')); } bindings[scopeName] = { mode: match[1][0], collection: match[2] === '*', optional: match[3] === '?', attrName: match[4] || scopeName }; if (match[4]) { bindingCache[definition] = bindings[scopeName]; } }); return bindings; } function parseDirectiveBindings(directive, directiveName) { var bindings = { isolateScope: null, bindToController: null }; if (isObject(directive.scope)) { if (directive.bindToController === true) { bindings.bindToController = parseIsolateBindings(directive.scope, directiveName, true); bindings.isolateScope = {}; } else { bindings.isolateScope = parseIsolateBindings(directive.scope, directiveName, false); } } if (isObject(directive.bindToController)) { bindings.bindToController = parseIsolateBindings(directive.bindToController, directiveName, true); } if (bindings.bindToController && !directive.controller) { // There is no controller throw $compileMinErr('noctrl', 'Cannot bind to controller without directive \'{0}\'s controller.', directiveName); } return bindings; } function assertValidDirectiveName(name) { var letter = name.charAt(0); if (!letter || letter !== lowercase(letter)) { throw $compileMinErr('baddir', 'Directive/Component name \'{0}\' is invalid. The first character must be a lowercase letter', name); } if (name !== name.trim()) { throw $compileMinErr('baddir', 'Directive/Component name \'{0}\' is invalid. The name should not contain leading or trailing whitespaces', name); } } function getDirectiveRequire(directive) { var require = directive.require || (directive.controller && directive.name); if (!isArray(require) && isObject(require)) { forEach(require, function(value, key) { var match = value.match(REQUIRE_PREFIX_REGEXP); var name = value.substring(match[0].length); if (!name) require[key] = match[0] + key; }); } return require; } function getDirectiveRestrict(restrict, name) { if (restrict && !(isString(restrict) && /[EACM]/.test(restrict))) { throw $compileMinErr('badrestrict', 'Restrict property \'{0}\' of directive \'{1}\' is invalid', restrict, name); } return restrict || 'EA'; } /** * @ngdoc method * @name $compileProvider#directive * @kind function * * @description * Register a new directive with the compiler. * * @param {string|Object} name Name of the directive in camel-case (i.e. ngBind which * will match as ng-bind), or an object map of directives where the keys are the * names and the values are the factories. * @param {Function|Array} directiveFactory An injectable directive factory function. See the * {@link guide/directive directive guide} and the {@link $compile compile API} for more info. * @returns {ng.$compileProvider} Self for chaining. */ this.directive = function registerDirective(name, directiveFactory) { assertArg(name, 'name'); assertNotHasOwnProperty(name, 'directive'); if (isString(name)) { assertValidDirectiveName(name); assertArg(directiveFactory, 'directiveFactory'); if (!hasDirectives.hasOwnProperty(name)) { hasDirectives[name] = []; $provide.factory(name + Suffix, ['$injector', '$exceptionHandler', function($injector, $exceptionHandler) { var directives = []; forEach(hasDirectives[name], function(directiveFactory, index) { try { var directive = $injector.invoke(directiveFactory); if (isFunction(directive)) { directive = { compile: valueFn(directive) }; } else if (!directive.compile && directive.link) { directive.compile = valueFn(directive.link); } directive.priority = directive.priority || 0; directive.index = index; directive.name = directive.name || name; directive.require = getDirectiveRequire(directive); directive.restrict = getDirectiveRestrict(directive.restrict, name); directive.$$moduleName = directiveFactory.$$moduleName; directives.push(directive); } catch (e) { $exceptionHandler(e); } }); return directives; }]); } hasDirectives[name].push(directiveFactory); } else { forEach(name, reverseParams(registerDirective)); } return this; }; /** * @ngdoc method * @name $compileProvider#component * @module ng * @param {string} name Name of the component in camelCase (i.e. `myComp` which will match ``) * @param {Object} options Component definition object (a simplified * {@link ng.$compile#directive-definition-object directive definition object}), * with the following properties (all optional): * * - `controller` – `{(string|function()=}` – controller constructor function that should be * associated with newly created scope or the name of a {@link ng.$compile#-controller- * registered controller} if passed as a string. An empty `noop` function by default. * - `controllerAs` – `{string=}` – identifier name for to reference the controller in the component's scope. * If present, the controller will be published to scope under the `controllerAs` name. * If not present, this will default to be `$ctrl`. * - `template` – `{string=|function()=}` – html template as a string or a function that * returns an html template as a string which should be used as the contents of this component. * Empty string by default. * * If `template` is a function, then it is {@link auto.$injector#invoke injected} with * the following locals: * * - `$element` - Current element * - `$attrs` - Current attributes object for the element * * - `templateUrl` – `{string=|function()=}` – path or function that returns a path to an html * template that should be used as the contents of this component. * * If `templateUrl` is a function, then it is {@link auto.$injector#invoke injected} with * the following locals: * * - `$element` - Current element * - `$attrs` - Current attributes object for the element * * - `bindings` – `{object=}` – defines bindings between DOM attributes and component properties. * Component properties are always bound to the component controller and not to the scope. * See {@link ng.$compile#-bindtocontroller- `bindToController`}. * - `transclude` – `{boolean=}` – whether {@link $compile#transclusion content transclusion} is enabled. * Disabled by default. * - `require` - `{Object=}` - requires the controllers of other directives and binds them to * this component's controller. The object keys specify the property names under which the required * controllers (object values) will be bound. See {@link ng.$compile#-require- `require`}. * - `$...` – additional properties to attach to the directive factory function and the controller * constructor function. (This is used by the component router to annotate) * * @returns {ng.$compileProvider} the compile provider itself, for chaining of function calls. * @description * Register a **component definition** with the compiler. This is a shorthand for registering a special * type of directive, which represents a self-contained UI component in your application. Such components * are always isolated (i.e. `scope: {}`) and are always restricted to elements (i.e. `restrict: 'E'`). * * Component definitions are very simple and do not require as much configuration as defining general * directives. Component definitions usually consist only of a template and a controller backing it. * * In order to make the definition easier, components enforce best practices like use of `controllerAs`, * `bindToController`. They always have **isolate scope** and are restricted to elements. * * Here are a few examples of how you would usually define components: * * ```js * var myMod = angular.module(...); * myMod.component('myComp', { * template: '
My name is {{$ctrl.name}}
', * controller: function() { * this.name = 'shahar'; * } * }); * * myMod.component('myComp', { * template: '
My name is {{$ctrl.name}}
', * bindings: {name: '@'} * }); * * myMod.component('myComp', { * templateUrl: 'views/my-comp.html', * controller: 'MyCtrl', * controllerAs: 'ctrl', * bindings: {name: '@'} * }); * * ``` * For more examples, and an in-depth guide, see the {@link guide/component component guide}. * *
* See also {@link ng.$compileProvider#directive $compileProvider.directive()}. */ this.component = function registerComponent(name, options) { var controller = options.controller || function() {}; function factory($injector) { function makeInjectable(fn) { if (isFunction(fn) || isArray(fn)) { return /** @this */ function(tElement, tAttrs) { return $injector.invoke(fn, this, {$element: tElement, $attrs: tAttrs}); }; } else { return fn; } } var template = (!options.template && !options.templateUrl ? '' : options.template); var ddo = { controller: controller, controllerAs: identifierForController(options.controller) || options.controllerAs || '$ctrl', template: makeInjectable(template), templateUrl: makeInjectable(options.templateUrl), transclude: options.transclude, scope: {}, bindToController: options.bindings || {}, restrict: 'E', require: options.require }; // Copy annotations (starting with $) over to the DDO forEach(options, function(val, key) { if (key.charAt(0) === '$') ddo[key] = val; }); return ddo; } // TODO(pete) remove the following `forEach` before we release 1.6.0 // The component-router@0.2.0 looks for the annotations on the controller constructor // Nothing in Angular looks for annotations on the factory function but we can't remove // it from 1.5.x yet. // Copy any annotation properties (starting with $) over to the factory and controller constructor functions // These could be used by libraries such as the new component router forEach(options, function(val, key) { if (key.charAt(0) === '$') { factory[key] = val; // Don't try to copy over annotations to named controller if (isFunction(controller)) controller[key] = val; } }); factory.$inject = ['$injector']; return this.directive(name, factory); }; /** * @ngdoc method * @name $compileProvider#aHrefSanitizationWhitelist * @kind function * * @description * Retrieves or overrides the default regular expression that is used for whitelisting of safe * urls during a[href] sanitization. * * The sanitization is a security measure aimed at preventing XSS attacks via html links. * * Any url about to be assigned to a[href] via data-binding is first normalized and turned into * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist` * regular expression. If a match is found, the original url is written into the dom. Otherwise, * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM. * * @param {RegExp=} regexp New regexp to whitelist urls with. * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for * chaining otherwise. */ this.aHrefSanitizationWhitelist = function(regexp) { if (isDefined(regexp)) { $$sanitizeUriProvider.aHrefSanitizationWhitelist(regexp); return this; } else { return $$sanitizeUriProvider.aHrefSanitizationWhitelist(); } }; /** * @ngdoc method * @name $compileProvider#imgSrcSanitizationWhitelist * @kind function * * @description * Retrieves or overrides the default regular expression that is used for whitelisting of safe * urls during img[src] sanitization. * * The sanitization is a security measure aimed at prevent XSS attacks via html links. * * Any url about to be assigned to img[src] via data-binding is first normalized and turned into * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist` * regular expression. If a match is found, the original url is written into the dom. Otherwise, * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM. * * @param {RegExp=} regexp New regexp to whitelist urls with. * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for * chaining otherwise. */ this.imgSrcSanitizationWhitelist = function(regexp) { if (isDefined(regexp)) { $$sanitizeUriProvider.imgSrcSanitizationWhitelist(regexp); return this; } else { return $$sanitizeUriProvider.imgSrcSanitizationWhitelist(); } }; /** * @ngdoc method * @name $compileProvider#debugInfoEnabled * * @param {boolean=} enabled update the debugInfoEnabled state if provided, otherwise just return the * current debugInfoEnabled state * @returns {*} current value if used as getter or itself (chaining) if used as setter * * @kind function * * @description * Call this method to enable/disable various debug runtime information in the compiler such as adding * binding information and a reference to the current scope on to DOM elements. * If enabled, the compiler will add the following to DOM elements that have been bound to the scope * * `ng-binding` CSS class * * `$binding` data property containing an array of the binding expressions * * You may want to disable this in production for a significant performance boost. See * {@link guide/production#disabling-debug-data Disabling Debug Data} for more. * * The default value is true. */ var debugInfoEnabled = true; this.debugInfoEnabled = function(enabled) { if (isDefined(enabled)) { debugInfoEnabled = enabled; return this; } return debugInfoEnabled; }; /** * @ngdoc method * @name $compileProvider#preAssignBindingsEnabled * * @param {boolean=} enabled update the preAssignBindingsEnabled state if provided, otherwise just return the * current preAssignBindingsEnabled state * @returns {*} current value if used as getter or itself (chaining) if used as setter * * @kind function * * @description * Call this method to enable/disable whether directive controllers are assigned bindings before * calling the controller's constructor. * If enabled (true), the compiler assigns the value of each of the bindings to the * properties of the controller object before the constructor of this object is called. * * If disabled (false), the compiler calls the constructor first before assigning bindings. * * The default value is true in Angular 1.5.x but will switch to false in Angular 1.6.x. */ var preAssignBindingsEnabled = false; this.preAssignBindingsEnabled = function(enabled) { if (isDefined(enabled)) { preAssignBindingsEnabled = enabled; return this; } return preAssignBindingsEnabled; }; var TTL = 10; /** * @ngdoc method * @name $compileProvider#onChangesTtl * @description * * Sets the number of times `$onChanges` hooks can trigger new changes before giving up and * assuming that the model is unstable. * * The current default is 10 iterations. * * In complex applications it's possible that dependencies between `$onChanges` hooks and bindings will result * in several iterations of calls to these hooks. However if an application needs more than the default 10 * iterations to stabilize then you should investigate what is causing the model to continuously change during * the `$onChanges` hook execution. * * Increasing the TTL could have performance implications, so you should not change it without proper justification. * * @param {number} limit The number of `$onChanges` hook iterations. * @returns {number|object} the current limit (or `this` if called as a setter for chaining) */ this.onChangesTtl = function(value) { if (arguments.length) { TTL = value; return this; } return TTL; }; var commentDirectivesEnabledConfig = true; /** * @ngdoc method * @name $compileProvider#commentDirectivesEnabled * @description * * It indicates to the compiler * whether or not directives on comments should be compiled. * Defaults to `true`. * * Calling this function with false disables the compilation of directives * on comments for the whole application. * This results in a compilation performance gain, * as the compiler doesn't have to check comments when looking for directives. * This should however only be used if you are sure that no comment directives are used in * the application (including any 3rd party directives). * * @param {boolean} enabled `false` if the compiler may ignore directives on comments * @returns {boolean|object} the current value (or `this` if called as a setter for chaining) */ this.commentDirectivesEnabled = function(value) { if (arguments.length) { commentDirectivesEnabledConfig = value; return this; } return commentDirectivesEnabledConfig; }; var cssClassDirectivesEnabledConfig = true; /** * @ngdoc method * @name $compileProvider#cssClassDirectivesEnabled * @description * * It indicates to the compiler * whether or not directives on element classes should be compiled. * Defaults to `true`. * * Calling this function with false disables the compilation of directives * on element classes for the whole application. * This results in a compilation performance gain, * as the compiler doesn't have to check element classes when looking for directives. * This should however only be used if you are sure that no class directives are used in * the application (including any 3rd party directives). * * @param {boolean} enabled `false` if the compiler may ignore directives on element classes * @returns {boolean|object} the current value (or `this` if called as a setter for chaining) */ this.cssClassDirectivesEnabled = function(value) { if (arguments.length) { cssClassDirectivesEnabledConfig = value; return this; } return cssClassDirectivesEnabledConfig; }; this.$get = [ '$injector', '$interpolate', '$exceptionHandler', '$templateRequest', '$parse', '$controller', '$rootScope', '$sce', '$animate', '$$sanitizeUri', function($injector, $interpolate, $exceptionHandler, $templateRequest, $parse, $controller, $rootScope, $sce, $animate, $$sanitizeUri) { var SIMPLE_ATTR_NAME = /^\w/; var specialAttrHolder = window.document.createElement('div'); var commentDirectivesEnabled = commentDirectivesEnabledConfig; var cssClassDirectivesEnabled = cssClassDirectivesEnabledConfig; var onChangesTtl = TTL; // The onChanges hooks should all be run together in a single digest // When changes occur, the call to trigger their hooks will be added to this queue var onChangesQueue; // This function is called in a $$postDigest to trigger all the onChanges hooks in a single digest function flushOnChangesQueue() { try { if (!(--onChangesTtl)) { // We have hit the TTL limit so reset everything onChangesQueue = undefined; throw $compileMinErr('infchng', '{0} $onChanges() iterations reached. Aborting!\n', TTL); } // We must run this hook in an apply since the $$postDigest runs outside apply $rootScope.$apply(function() { var errors = []; for (var i = 0, ii = onChangesQueue.length; i < ii; ++i) { try { onChangesQueue[i](); } catch (e) { errors.push(e); } } // Reset the queue to trigger a new schedule next time there is a change onChangesQueue = undefined; if (errors.length) { throw errors; } }); } finally { onChangesTtl++; } } function Attributes(element, attributesToCopy) { if (attributesToCopy) { var keys = Object.keys(attributesToCopy); var i, l, key; for (i = 0, l = keys.length; i < l; i++) { key = keys[i]; this[key] = attributesToCopy[key]; } } else { this.$attr = {}; } this.$$element = element; } Attributes.prototype = { /** * @ngdoc method * @name $compile.directive.Attributes#$normalize * @kind function * * @description * Converts an attribute name (e.g. dash/colon/underscore-delimited string, optionally prefixed with `x-` or * `data-`) to its normalized, camelCase form. * * Also there is special case for Moz prefix starting with upper case letter. * * For further information check out the guide on {@link guide/directive#matching-directives Matching Directives} * * @param {string} name Name to normalize */ $normalize: directiveNormalize, /** * @ngdoc method * @name $compile.directive.Attributes#$addClass * @kind function * * @description * Adds the CSS class value specified by the classVal parameter to the element. If animations * are enabled then an animation will be triggered for the class addition. * * @param {string} classVal The className value that will be added to the element */ $addClass: function(classVal) { if (classVal && classVal.length > 0) { $animate.addClass(this.$$element, classVal); } }, /** * @ngdoc method * @name $compile.directive.Attributes#$removeClass * @kind function * * @description * Removes the CSS class value specified by the classVal parameter from the element. If * animations are enabled then an animation will be triggered for the class removal. * * @param {string} classVal The className value that will be removed from the element */ $removeClass: function(classVal) { if (classVal && classVal.length > 0) { $animate.removeClass(this.$$element, classVal); } }, /** * @ngdoc method * @name $compile.directive.Attributes#$updateClass * @kind function * * @description * Adds and removes the appropriate CSS class values to the element based on the difference * between the new and old CSS class values (specified as newClasses and oldClasses). * * @param {string} newClasses The current CSS className value * @param {string} oldClasses The former CSS className value */ $updateClass: function(newClasses, oldClasses) { var toAdd = tokenDifference(newClasses, oldClasses); if (toAdd && toAdd.length) { $animate.addClass(this.$$element, toAdd); } var toRemove = tokenDifference(oldClasses, newClasses); if (toRemove && toRemove.length) { $animate.removeClass(this.$$element, toRemove); } }, /** * Set a normalized attribute on the element in a way such that all directives * can share the attribute. This function properly handles boolean attributes. * @param {string} key Normalized key. (ie ngAttribute) * @param {string|boolean} value The value to set. If `null` attribute will be deleted. * @param {boolean=} writeAttr If false, does not write the value to DOM element attribute. * Defaults to true. * @param {string=} attrName Optional none normalized name. Defaults to key. */ $set: function(key, value, writeAttr, attrName) { // TODO: decide whether or not to throw an error if "class" //is set through this function since it may cause $updateClass to //become unstable. var node = this.$$element[0], booleanKey = getBooleanAttrName(node, key), aliasedKey = getAliasedAttrName(key), observer = key, nodeName; if (booleanKey) { this.$$element.prop(key, value); attrName = booleanKey; } else if (aliasedKey) { this[aliasedKey] = value; observer = aliasedKey; } this[key] = value; // translate normalized key to actual key if (attrName) { this.$attr[key] = attrName; } else { attrName = this.$attr[key]; if (!attrName) { this.$attr[key] = attrName = snake_case(key, '-'); } } nodeName = nodeName_(this.$$element); if ((nodeName === 'a' && (key === 'href' || key === 'xlinkHref')) || (nodeName === 'img' && key === 'src')) { // sanitize a[href] and img[src] values this[key] = value = $$sanitizeUri(value, key === 'src'); } else if (nodeName === 'img' && key === 'srcset' && isDefined(value)) { // sanitize img[srcset] values var result = ''; // first check if there are spaces because it's not the same pattern var trimmedSrcset = trim(value); // ( 999x ,| 999w ,| ,|, ) var srcPattern = /(\s+\d+x\s*,|\s+\d+w\s*,|\s+,|,\s+)/; var pattern = /\s/.test(trimmedSrcset) ? srcPattern : /(,)/; // split srcset into tuple of uri and descriptor except for the last item var rawUris = trimmedSrcset.split(pattern); // for each tuples var nbrUrisWith2parts = Math.floor(rawUris.length / 2); for (var i = 0; i < nbrUrisWith2parts; i++) { var innerIdx = i * 2; // sanitize the uri result += $$sanitizeUri(trim(rawUris[innerIdx]), true); // add the descriptor result += (' ' + trim(rawUris[innerIdx + 1])); } // split the last item into uri and descriptor var lastTuple = trim(rawUris[i * 2]).split(/\s/); // sanitize the last uri result += $$sanitizeUri(trim(lastTuple[0]), true); // and add the last descriptor if any if (lastTuple.length === 2) { result += (' ' + trim(lastTuple[1])); } this[key] = value = result; } if (writeAttr !== false) { if (value === null || isUndefined(value)) { this.$$element.removeAttr(attrName); } else { if (SIMPLE_ATTR_NAME.test(attrName)) { this.$$element.attr(attrName, value); } else { setSpecialAttr(this.$$element[0], attrName, value); } } } // fire observers var $$observers = this.$$observers; if ($$observers) { forEach($$observers[observer], function(fn) { try { fn(value); } catch (e) { $exceptionHandler(e); } }); } }, /** * @ngdoc method * @name $compile.directive.Attributes#$observe * @kind function * * @description * Observes an interpolated attribute. * * The observer function will be invoked once during the next `$digest` following * compilation. The observer is then invoked whenever the interpolated value * changes. * * @param {string} key Normalized key. (ie ngAttribute) . * @param {function(interpolatedValue)} fn Function that will be called whenever the interpolated value of the attribute changes. * See the {@link guide/interpolation#how-text-and-attribute-bindings-work Interpolation * guide} for more info. * @returns {function()} Returns a deregistration function for this observer. */ $observe: function(key, fn) { var attrs = this, $$observers = (attrs.$$observers || (attrs.$$observers = createMap())), listeners = ($$observers[key] || ($$observers[key] = [])); listeners.push(fn); $rootScope.$evalAsync(function() { if (!listeners.$$inter && attrs.hasOwnProperty(key) && !isUndefined(attrs[key])) { // no one registered attribute interpolation function, so lets call it manually fn(attrs[key]); } }); return function() { arrayRemove(listeners, fn); }; } }; function setSpecialAttr(element, attrName, value) { // Attributes names that do not start with letters (such as `(click)`) cannot be set using `setAttribute` // so we have to jump through some hoops to get such an attribute // https://github.com/angular/angular.js/pull/13318 specialAttrHolder.innerHTML = ''; var attributes = specialAttrHolder.firstChild.attributes; var attribute = attributes[0]; // We have to remove the attribute from its container element before we can add it to the destination element attributes.removeNamedItem(attribute.name); attribute.value = value; element.attributes.setNamedItem(attribute); } function safeAddClass($element, className) { try { $element.addClass(className); } catch (e) { // ignore, since it means that we are trying to set class on // SVG element, where class name is read-only. } } var startSymbol = $interpolate.startSymbol(), endSymbol = $interpolate.endSymbol(), denormalizeTemplate = (startSymbol === '{{' && endSymbol === '}}') ? identity : function denormalizeTemplate(template) { return template.replace(/\{\{/g, startSymbol).replace(/}}/g, endSymbol); }, NG_ATTR_BINDING = /^ngAttr[A-Z]/; var MULTI_ELEMENT_DIR_RE = /^(.+)Start$/; compile.$$addBindingInfo = debugInfoEnabled ? function $$addBindingInfo($element, binding) { var bindings = $element.data('$binding') || []; if (isArray(binding)) { bindings = bindings.concat(binding); } else { bindings.push(binding); } $element.data('$binding', bindings); } : noop; compile.$$addBindingClass = debugInfoEnabled ? function $$addBindingClass($element) { safeAddClass($element, 'ng-binding'); } : noop; compile.$$addScopeInfo = debugInfoEnabled ? function $$addScopeInfo($element, scope, isolated, noTemplate) { var dataName = isolated ? (noTemplate ? '$isolateScopeNoTemplate' : '$isolateScope') : '$scope'; $element.data(dataName, scope); } : noop; compile.$$addScopeClass = debugInfoEnabled ? function $$addScopeClass($element, isolated) { safeAddClass($element, isolated ? 'ng-isolate-scope' : 'ng-scope'); } : noop; compile.$$createComment = function(directiveName, comment) { var content = ''; if (debugInfoEnabled) { content = ' ' + (directiveName || '') + ': '; if (comment) content += comment + ' '; } return window.document.createComment(content); }; return compile; //================================ function compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext) { if (!($compileNodes instanceof jqLite)) { // jquery always rewraps, whereas we need to preserve the original selector so that we can // modify it. $compileNodes = jqLite($compileNodes); } var compositeLinkFn = compileNodes($compileNodes, transcludeFn, $compileNodes, maxPriority, ignoreDirective, previousCompileContext); compile.$$addScopeClass($compileNodes); var namespace = null; return function publicLinkFn(scope, cloneConnectFn, options) { if (!$compileNodes) { throw $compileMinErr('multilink', 'This element has already been linked.'); } assertArg(scope, 'scope'); if (previousCompileContext && previousCompileContext.needsNewScope) { // A parent directive did a replace and a directive on this element asked // for transclusion, which caused us to lose a layer of element on which // we could hold the new transclusion scope, so we will create it manually // here. scope = scope.$parent.$new(); } options = options || {}; var parentBoundTranscludeFn = options.parentBoundTranscludeFn, transcludeControllers = options.transcludeControllers, futureParentElement = options.futureParentElement; // When `parentBoundTranscludeFn` is passed, it is a // `controllersBoundTransclude` function (it was previously passed // as `transclude` to directive.link) so we must unwrap it to get // its `boundTranscludeFn` if (parentBoundTranscludeFn && parentBoundTranscludeFn.$$boundTransclude) { parentBoundTranscludeFn = parentBoundTranscludeFn.$$boundTransclude; } if (!namespace) { namespace = detectNamespaceForChildElements(futureParentElement); } var $linkNode; if (namespace !== 'html') { // When using a directive with replace:true and templateUrl the $compileNodes // (or a child element inside of them) // might change, so we need to recreate the namespace adapted compileNodes // for call to the link function. // Note: This will already clone the nodes... $linkNode = jqLite( wrapTemplate(namespace, jqLite('
').append($compileNodes).html()) ); } else if (cloneConnectFn) { // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart // and sometimes changes the structure of the DOM. $linkNode = JQLitePrototype.clone.call($compileNodes); } else { $linkNode = $compileNodes; } if (transcludeControllers) { for (var controllerName in transcludeControllers) { $linkNode.data('$' + controllerName + 'Controller', transcludeControllers[controllerName].instance); } } compile.$$addScopeInfo($linkNode, scope); if (cloneConnectFn) cloneConnectFn($linkNode, scope); if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn); if (!cloneConnectFn) { $compileNodes = compositeLinkFn = null; } return $linkNode; }; } function detectNamespaceForChildElements(parentElement) { // TODO: Make this detect MathML as well... var node = parentElement && parentElement[0]; if (!node) { return 'html'; } else { return nodeName_(node) !== 'foreignobject' && toString.call(node).match(/SVG/) ? 'svg' : 'html'; } } /** * Compile function matches each node in nodeList against the directives. Once all directives * for a particular node are collected their compile functions are executed. The compile * functions return values - the linking functions - are combined into a composite linking * function, which is the a linking function for the node. * * @param {NodeList} nodeList an array of nodes or NodeList to compile * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the * scope argument is auto-generated to the new child of the transcluded parent scope. * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then * the rootElement must be set the jqLite collection of the compile root. This is * needed so that the jqLite collection items can be replaced with widgets. * @param {number=} maxPriority Max directive priority. * @returns {Function} A composite linking function of all of the matched directives or null. */ function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective, previousCompileContext) { var linkFns = [], // `nodeList` can be either an element's `.childNodes` (live NodeList) // or a jqLite/jQuery collection or an array notLiveList = isArray(nodeList) || (nodeList instanceof jqLite), attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound, nodeLinkFnFound; for (var i = 0; i < nodeList.length; i++) { attrs = new Attributes(); // Support: IE 11 only // Workaround for #11781 and #14924 if (msie === 11) { mergeConsecutiveTextNodes(nodeList, i, notLiveList); } // We must always refer to `nodeList[i]` hereafter, // since the nodes can be replaced underneath us. directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined, ignoreDirective); nodeLinkFn = (directives.length) ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement, null, [], [], previousCompileContext) : null; if (nodeLinkFn && nodeLinkFn.scope) { compile.$$addScopeClass(attrs.$$element); } childLinkFn = (nodeLinkFn && nodeLinkFn.terminal || !(childNodes = nodeList[i].childNodes) || !childNodes.length) ? null : compileNodes(childNodes, nodeLinkFn ? ( (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement) && nodeLinkFn.transclude) : transcludeFn); if (nodeLinkFn || childLinkFn) { linkFns.push(i, nodeLinkFn, childLinkFn); linkFnFound = true; nodeLinkFnFound = nodeLinkFnFound || nodeLinkFn; } //use the previous context only for the first element in the virtual group previousCompileContext = null; } // return a linking function if we have found anything, null otherwise return linkFnFound ? compositeLinkFn : null; function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) { var nodeLinkFn, childLinkFn, node, childScope, i, ii, idx, childBoundTranscludeFn; var stableNodeList; if (nodeLinkFnFound) { // copy nodeList so that if a nodeLinkFn removes or adds an element at this DOM level our // offsets don't get screwed up var nodeListLength = nodeList.length; stableNodeList = new Array(nodeListLength); // create a sparse array by only copying the elements which have a linkFn for (i = 0; i < linkFns.length; i += 3) { idx = linkFns[i]; stableNodeList[idx] = nodeList[idx]; } } else { stableNodeList = nodeList; } for (i = 0, ii = linkFns.length; i < ii;) { node = stableNodeList[linkFns[i++]]; nodeLinkFn = linkFns[i++]; childLinkFn = linkFns[i++]; if (nodeLinkFn) { if (nodeLinkFn.scope) { childScope = scope.$new(); compile.$$addScopeInfo(jqLite(node), childScope); } else { childScope = scope; } if (nodeLinkFn.transcludeOnThisElement) { childBoundTranscludeFn = createBoundTranscludeFn( scope, nodeLinkFn.transclude, parentBoundTranscludeFn); } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) { childBoundTranscludeFn = parentBoundTranscludeFn; } else if (!parentBoundTranscludeFn && transcludeFn) { childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn); } else { childBoundTranscludeFn = null; } nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn); } else if (childLinkFn) { childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn); } } } } function mergeConsecutiveTextNodes(nodeList, idx, notLiveList) { var node = nodeList[idx]; var parent = node.parentNode; var sibling; if (node.nodeType !== NODE_TYPE_TEXT) { return; } while (true) { sibling = parent ? node.nextSibling : nodeList[idx + 1]; if (!sibling || sibling.nodeType !== NODE_TYPE_TEXT) { break; } node.nodeValue = node.nodeValue + sibling.nodeValue; if (sibling.parentNode) { sibling.parentNode.removeChild(sibling); } if (notLiveList && sibling === nodeList[idx + 1]) { nodeList.splice(idx + 1, 1); } } } function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn) { function boundTranscludeFn(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) { if (!transcludedScope) { transcludedScope = scope.$new(false, containingScope); transcludedScope.$$transcluded = true; } return transcludeFn(transcludedScope, cloneFn, { parentBoundTranscludeFn: previousBoundTranscludeFn, transcludeControllers: controllers, futureParentElement: futureParentElement }); } // We need to attach the transclusion slots onto the `boundTranscludeFn` // so that they are available inside the `controllersBoundTransclude` function var boundSlots = boundTranscludeFn.$$slots = createMap(); for (var slotName in transcludeFn.$$slots) { if (transcludeFn.$$slots[slotName]) { boundSlots[slotName] = createBoundTranscludeFn(scope, transcludeFn.$$slots[slotName], previousBoundTranscludeFn); } else { boundSlots[slotName] = null; } } return boundTranscludeFn; } /** * Looks for directives on the given node and adds them to the directive collection which is * sorted. * * @param node Node to search. * @param directives An array to which the directives are added to. This array is sorted before * the function returns. * @param attrs The shared attrs object which is used to populate the normalized attributes. * @param {number=} maxPriority Max directive priority. */ function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) { var nodeType = node.nodeType, attrsMap = attrs.$attr, match, nodeName, className; switch (nodeType) { case NODE_TYPE_ELEMENT: /* Element */ nodeName = nodeName_(node); // use the node name: addDirective(directives, directiveNormalize(nodeName), 'E', maxPriority, ignoreDirective); // iterate over the attributes for (var attr, name, nName, ngAttrName, value, isNgAttr, nAttrs = node.attributes, j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) { var attrStartName = false; var attrEndName = false; attr = nAttrs[j]; name = attr.name; value = attr.value; // support ngAttr attribute binding ngAttrName = directiveNormalize(name); isNgAttr = NG_ATTR_BINDING.test(ngAttrName); if (isNgAttr) { name = name.replace(PREFIX_REGEXP, '') .substr(8).replace(/_(.)/g, function(match, letter) { return letter.toUpperCase(); }); } var multiElementMatch = ngAttrName.match(MULTI_ELEMENT_DIR_RE); if (multiElementMatch && directiveIsMultiElement(multiElementMatch[1])) { attrStartName = name; attrEndName = name.substr(0, name.length - 5) + 'end'; name = name.substr(0, name.length - 6); } nName = directiveNormalize(name.toLowerCase()); attrsMap[nName] = name; if (isNgAttr || !attrs.hasOwnProperty(nName)) { attrs[nName] = value; if (getBooleanAttrName(node, nName)) { attrs[nName] = true; // presence means true } } addAttrInterpolateDirective(node, directives, value, nName, isNgAttr); addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName, attrEndName); } if (nodeName === 'input' && node.getAttribute('type') === 'hidden') { // Hidden input elements can have strange behaviour when navigating back to the page // This tells the browser not to try to cache and reinstate previous values node.setAttribute('autocomplete', 'off'); } // use class as directive if (!cssClassDirectivesEnabled) break; className = node.className; if (isObject(className)) { // Maybe SVGAnimatedString className = className.animVal; } if (isString(className) && className !== '') { while ((match = CLASS_DIRECTIVE_REGEXP.exec(className))) { nName = directiveNormalize(match[2]); if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) { attrs[nName] = trim(match[3]); } className = className.substr(match.index + match[0].length); } } break; case NODE_TYPE_TEXT: /* Text Node */ addTextInterpolateDirective(directives, node.nodeValue); break; case NODE_TYPE_COMMENT: /* Comment */ if (!commentDirectivesEnabled) break; collectCommentDirectives(node, directives, attrs, maxPriority, ignoreDirective); break; } directives.sort(byPriority); return directives; } function collectCommentDirectives(node, directives, attrs, maxPriority, ignoreDirective) { // function created because of performance, try/catch disables // the optimization of the whole function #14848 try { var match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue); if (match) { var nName = directiveNormalize(match[1]); if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) { attrs[nName] = trim(match[2]); } } } catch (e) { // turns out that under some circumstances IE9 throws errors when one attempts to read // comment's node value. // Just ignore it and continue. (Can't seem to reproduce in test case.) } } /** * Given a node with a directive-start it collects all of the siblings until it finds * directive-end. * @param node * @param attrStart * @param attrEnd * @returns {*} */ function groupScan(node, attrStart, attrEnd) { var nodes = []; var depth = 0; if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) { do { if (!node) { throw $compileMinErr('uterdir', 'Unterminated attribute, found \'{0}\' but no matching \'{1}\' found.', attrStart, attrEnd); } if (node.nodeType === NODE_TYPE_ELEMENT) { if (node.hasAttribute(attrStart)) depth++; if (node.hasAttribute(attrEnd)) depth--; } nodes.push(node); node = node.nextSibling; } while (depth > 0); } else { nodes.push(node); } return jqLite(nodes); } /** * Wrapper for linking function which converts normal linking function into a grouped * linking function. * @param linkFn * @param attrStart * @param attrEnd * @returns {Function} */ function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) { return function groupedElementsLink(scope, element, attrs, controllers, transcludeFn) { element = groupScan(element[0], attrStart, attrEnd); return linkFn(scope, element, attrs, controllers, transcludeFn); }; } /** * A function generator that is used to support both eager and lazy compilation * linking function. * @param eager * @param $compileNodes * @param transcludeFn * @param maxPriority * @param ignoreDirective * @param previousCompileContext * @returns {Function} */ function compilationGenerator(eager, $compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext) { var compiled; if (eager) { return compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext); } return /** @this */ function lazyCompilation() { if (!compiled) { compiled = compile($compileNodes, transcludeFn, maxPriority, ignoreDirective, previousCompileContext); // Null out all of these references in order to make them eligible for garbage collection // since this is a potentially long lived closure $compileNodes = transcludeFn = previousCompileContext = null; } return compiled.apply(this, arguments); }; } /** * Once the directives have been collected, their compile functions are executed. This method * is responsible for inlining directive templates as well as terminating the application * of the directives if the terminal directive has been reached. * * @param {Array} directives Array of collected directives to execute their compile function. * this needs to be pre-sorted by priority order. * @param {Node} compileNode The raw DOM node to apply the compile functions to * @param {Object} templateAttrs The shared attribute function * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the * scope argument is auto-generated to the new * child of the transcluded parent scope. * @param {JQLite} jqCollection If we are working on the root of the compile tree then this * argument has the root jqLite array so that we can replace nodes * on it. * @param {Object=} originalReplaceDirective An optional directive that will be ignored when * compiling the transclusion. * @param {Array.} preLinkFns * @param {Array.} postLinkFns * @param {Object} previousCompileContext Context used for previous compilation of the current * node * @returns {Function} linkFn */ function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn, jqCollection, originalReplaceDirective, preLinkFns, postLinkFns, previousCompileContext) { previousCompileContext = previousCompileContext || {}; var terminalPriority = -Number.MAX_VALUE, newScopeDirective = previousCompileContext.newScopeDirective, controllerDirectives = previousCompileContext.controllerDirectives, newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective, templateDirective = previousCompileContext.templateDirective, nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective, hasTranscludeDirective = false, hasTemplate = false, hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective, $compileNode = templateAttrs.$$element = jqLite(compileNode), directive, directiveName, $template, replaceDirective = originalReplaceDirective, childTranscludeFn = transcludeFn, linkFn, didScanForMultipleTransclusion = false, mightHaveMultipleTransclusionError = false, directiveValue; // executes all directives on the current element for (var i = 0, ii = directives.length; i < ii; i++) { directive = directives[i]; var attrStart = directive.$$start; var attrEnd = directive.$$end; // collect multiblock sections if (attrStart) { $compileNode = groupScan(compileNode, attrStart, attrEnd); } $template = undefined; if (terminalPriority > directive.priority) { break; // prevent further processing of directives } directiveValue = directive.scope; if (directiveValue) { // skip the check for directives with async templates, we'll check the derived sync // directive when the template arrives if (!directive.templateUrl) { if (isObject(directiveValue)) { // This directive is trying to add an isolated scope. // Check that there is no scope of any kind already assertNoDuplicate('new/isolated scope', newIsolateScopeDirective || newScopeDirective, directive, $compileNode); newIsolateScopeDirective = directive; } else { // This directive is trying to add a child scope. // Check that there is no isolated scope already assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive, $compileNode); } } newScopeDirective = newScopeDirective || directive; } directiveName = directive.name; // If we encounter a condition that can result in transclusion on the directive, // then scan ahead in the remaining directives for others that may cause a multiple // transclusion error to be thrown during the compilation process. If a matching directive // is found, then we know that when we encounter a transcluded directive, we need to eagerly // compile the `transclude` function rather than doing it lazily in order to throw // exceptions at the correct time if (!didScanForMultipleTransclusion && ((directive.replace && (directive.templateUrl || directive.template)) || (directive.transclude && !directive.$$tlb))) { var candidateDirective; for (var scanningIndex = i + 1; (candidateDirective = directives[scanningIndex++]);) { if ((candidateDirective.transclude && !candidateDirective.$$tlb) || (candidateDirective.replace && (candidateDirective.templateUrl || candidateDirective.template))) { mightHaveMultipleTransclusionError = true; break; } } didScanForMultipleTransclusion = true; } if (!directive.templateUrl && directive.controller) { controllerDirectives = controllerDirectives || createMap(); assertNoDuplicate('\'' + directiveName + '\' controller', controllerDirectives[directiveName], directive, $compileNode); controllerDirectives[directiveName] = directive; } directiveValue = directive.transclude; if (directiveValue) { hasTranscludeDirective = true; // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion. // This option should only be used by directives that know how to safely handle element transclusion, // where the transcluded nodes are added or replaced after linking. if (!directive.$$tlb) { assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode); nonTlbTranscludeDirective = directive; } if (directiveValue === 'element') { hasElementTranscludeDirective = true; terminalPriority = directive.priority; $template = $compileNode; $compileNode = templateAttrs.$$element = jqLite(compile.$$createComment(directiveName, templateAttrs[directiveName])); compileNode = $compileNode[0]; replaceWith(jqCollection, sliceArgs($template), compileNode); // Support: Chrome < 50 // https://github.com/angular/angular.js/issues/14041 // In the versions of V8 prior to Chrome 50, the document fragment that is created // in the `replaceWith` function is improperly garbage collected despite still // being referenced by the `parentNode` property of all of the child nodes. By adding // a reference to the fragment via a different property, we can avoid that incorrect // behavior. // TODO: remove this line after Chrome 50 has been released $template[0].$$parentNode = $template[0].parentNode; childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, terminalPriority, replaceDirective && replaceDirective.name, { // Don't pass in: // - controllerDirectives - otherwise we'll create duplicates controllers // - newIsolateScopeDirective or templateDirective - combining templates with // element transclusion doesn't make sense. // // We need only nonTlbTranscludeDirective so that we prevent putting transclusion // on the same element more than once. nonTlbTranscludeDirective: nonTlbTranscludeDirective }); } else { var slots = createMap(); if (!isObject(directiveValue)) { $template = jqLite(jqLiteClone(compileNode)).contents(); } else { // We have transclusion slots, // collect them up, compile them and store their transclusion functions $template = []; var slotMap = createMap(); var filledSlots = createMap(); // Parse the element selectors forEach(directiveValue, function(elementSelector, slotName) { // If an element selector starts with a ? then it is optional var optional = (elementSelector.charAt(0) === '?'); elementSelector = optional ? elementSelector.substring(1) : elementSelector; slotMap[elementSelector] = slotName; // We explicitly assign `null` since this implies that a slot was defined but not filled. // Later when calling boundTransclusion functions with a slot name we only error if the // slot is `undefined` slots[slotName] = null; // filledSlots contains `true` for all slots that are either optional or have been // filled. This is used to check that we have not missed any required slots filledSlots[slotName] = optional; }); // Add the matching elements into their slot forEach($compileNode.contents(), function(node) { var slotName = slotMap[directiveNormalize(nodeName_(node))]; if (slotName) { filledSlots[slotName] = true; slots[slotName] = slots[slotName] || []; slots[slotName].push(node); } else { $template.push(node); } }); // Check for required slots that were not filled forEach(filledSlots, function(filled, slotName) { if (!filled) { throw $compileMinErr('reqslot', 'Required transclusion slot `{0}` was not filled.', slotName); } }); for (var slotName in slots) { if (slots[slotName]) { // Only define a transclusion function if the slot was filled slots[slotName] = compilationGenerator(mightHaveMultipleTransclusionError, slots[slotName], transcludeFn); } } } $compileNode.empty(); // clear contents childTranscludeFn = compilationGenerator(mightHaveMultipleTransclusionError, $template, transcludeFn, undefined, undefined, { needsNewScope: directive.$$isolateScope || directive.$$newScope}); childTranscludeFn.$$slots = slots; } } if (directive.template) { hasTemplate = true; assertNoDuplicate('template', templateDirective, directive, $compileNode); templateDirective = directive; directiveValue = (isFunction(directive.template)) ? directive.template($compileNode, templateAttrs) : directive.template; directiveValue = denormalizeTemplate(directiveValue); if (directive.replace) { replaceDirective = directive; if (jqLiteIsTextNode(directiveValue)) { $template = []; } else { $template = removeComments(wrapTemplate(directive.templateNamespace, trim(directiveValue))); } compileNode = $template[0]; if ($template.length !== 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) { throw $compileMinErr('tplrt', 'Template for directive \'{0}\' must have exactly one root element. {1}', directiveName, ''); } replaceWith(jqCollection, $compileNode, compileNode); var newTemplateAttrs = {$attr: {}}; // combine directives from the original node and from the template: // - take the array of directives for this element // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed) // - collect directives from the template and sort them by priority // - combine directives as: processed + template + unprocessed var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs); var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1)); if (newIsolateScopeDirective || newScopeDirective) { // The original directive caused the current element to be replaced but this element // also needs to have a new scope, so we need to tell the template directives // that they would need to get their scope from further up, if they require transclusion markDirectiveScope(templateDirectives, newIsolateScopeDirective, newScopeDirective); } directives = directives.concat(templateDirectives).concat(unprocessedDirectives); mergeTemplateAttributes(templateAttrs, newTemplateAttrs); ii = directives.length; } else { $compileNode.html(directiveValue); } } if (directive.templateUrl) { hasTemplate = true; assertNoDuplicate('template', templateDirective, directive, $compileNode); templateDirective = directive; if (directive.replace) { replaceDirective = directive; } // eslint-disable-next-line no-func-assign nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode, templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, { controllerDirectives: controllerDirectives, newScopeDirective: (newScopeDirective !== directive) && newScopeDirective, newIsolateScopeDirective: newIsolateScopeDirective, templateDirective: templateDirective, nonTlbTranscludeDirective: nonTlbTranscludeDirective }); ii = directives.length; } else if (directive.compile) { try { linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn); var context = directive.$$originalDirective || directive; if (isFunction(linkFn)) { addLinkFns(null, bind(context, linkFn), attrStart, attrEnd); } else if (linkFn) { addLinkFns(bind(context, linkFn.pre), bind(context, linkFn.post), attrStart, attrEnd); } } catch (e) { $exceptionHandler(e, startingTag($compileNode)); } } if (directive.terminal) { nodeLinkFn.terminal = true; terminalPriority = Math.max(terminalPriority, directive.priority); } } nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true; nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective; nodeLinkFn.templateOnThisElement = hasTemplate; nodeLinkFn.transclude = childTranscludeFn; previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective; // might be normal or delayed nodeLinkFn depending on if templateUrl is present return nodeLinkFn; //////////////////// function addLinkFns(pre, post, attrStart, attrEnd) { if (pre) { if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd); pre.require = directive.require; pre.directiveName = directiveName; if (newIsolateScopeDirective === directive || directive.$$isolateScope) { pre = cloneAndAnnotateFn(pre, {isolateScope: true}); } preLinkFns.push(pre); } if (post) { if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd); post.require = directive.require; post.directiveName = directiveName; if (newIsolateScopeDirective === directive || directive.$$isolateScope) { post = cloneAndAnnotateFn(post, {isolateScope: true}); } postLinkFns.push(post); } } function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) { var i, ii, linkFn, isolateScope, controllerScope, elementControllers, transcludeFn, $element, attrs, scopeBindingInfo; if (compileNode === linkNode) { attrs = templateAttrs; $element = templateAttrs.$$element; } else { $element = jqLite(linkNode); attrs = new Attributes($element, templateAttrs); } controllerScope = scope; if (newIsolateScopeDirective) { isolateScope = scope.$new(true); } else if (newScopeDirective) { controllerScope = scope.$parent; } if (boundTranscludeFn) { // track `boundTranscludeFn` so it can be unwrapped if `transcludeFn` // is later passed as `parentBoundTranscludeFn` to `publicLinkFn` transcludeFn = controllersBoundTransclude; transcludeFn.$$boundTransclude = boundTranscludeFn; // expose the slots on the `$transclude` function transcludeFn.isSlotFilled = function(slotName) { return !!boundTranscludeFn.$$slots[slotName]; }; } if (controllerDirectives) { elementControllers = setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective); } if (newIsolateScopeDirective) { // Initialize isolate scope bindings for new isolate scope directive. compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective || templateDirective === newIsolateScopeDirective.$$originalDirective))); compile.$$addScopeClass($element, true); isolateScope.$$isolateBindings = newIsolateScopeDirective.$$isolateBindings; scopeBindingInfo = initializeDirectiveBindings(scope, attrs, isolateScope, isolateScope.$$isolateBindings, newIsolateScopeDirective); if (scopeBindingInfo.removeWatches) { isolateScope.$on('$destroy', scopeBindingInfo.removeWatches); } } // Initialize bindToController bindings for (var name in elementControllers) { var controllerDirective = controllerDirectives[name]; var controller = elementControllers[name]; var bindings = controllerDirective.$$bindings.bindToController; if (preAssignBindingsEnabled) { if (bindings) { controller.bindingInfo = initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective); } else { controller.bindingInfo = {}; } var controllerResult = controller(); if (controllerResult !== controller.instance) { // If the controller constructor has a return value, overwrite the instance // from setupControllers controller.instance = controllerResult; $element.data('$' + controllerDirective.name + 'Controller', controllerResult); if (controller.bindingInfo.removeWatches) { controller.bindingInfo.removeWatches(); } controller.bindingInfo = initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective); } } else { controller.instance = controller(); $element.data('$' + controllerDirective.name + 'Controller', controller.instance); controller.bindingInfo = initializeDirectiveBindings(controllerScope, attrs, controller.instance, bindings, controllerDirective); } } // Bind the required controllers to the controller, if `require` is an object and `bindToController` is truthy forEach(controllerDirectives, function(controllerDirective, name) { var require = controllerDirective.require; if (controllerDirective.bindToController && !isArray(require) && isObject(require)) { extend(elementControllers[name].instance, getControllers(name, require, $element, elementControllers)); } }); // Handle the init and destroy lifecycle hooks on all controllers that have them forEach(elementControllers, function(controller) { var controllerInstance = controller.instance; if (isFunction(controllerInstance.$onChanges)) { try { controllerInstance.$onChanges(controller.bindingInfo.initialChanges); } catch (e) { $exceptionHandler(e); } } if (isFunction(controllerInstance.$onInit)) { try { controllerInstance.$onInit(); } catch (e) { $exceptionHandler(e); } } if (isFunction(controllerInstance.$doCheck)) { controllerScope.$watch(function() { controllerInstance.$doCheck(); }); controllerInstance.$doCheck(); } if (isFunction(controllerInstance.$onDestroy)) { controllerScope.$on('$destroy', function callOnDestroyHook() { controllerInstance.$onDestroy(); }); } }); // PRELINKING for (i = 0, ii = preLinkFns.length; i < ii; i++) { linkFn = preLinkFns[i]; invokeLinkFn(linkFn, linkFn.isolateScope ? isolateScope : scope, $element, attrs, linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers), transcludeFn ); } // RECURSION // We only pass the isolate scope, if the isolate directive has a template, // otherwise the child elements do not belong to the isolate directive. var scopeToChild = scope; if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) { scopeToChild = isolateScope; } if (childLinkFn) { childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn); } // POSTLINKING for (i = postLinkFns.length - 1; i >= 0; i--) { linkFn = postLinkFns[i]; invokeLinkFn(linkFn, linkFn.isolateScope ? isolateScope : scope, $element, attrs, linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers), transcludeFn ); } // Trigger $postLink lifecycle hooks forEach(elementControllers, function(controller) { var controllerInstance = controller.instance; if (isFunction(controllerInstance.$postLink)) { controllerInstance.$postLink(); } }); // This is the function that is injected as `$transclude`. // Note: all arguments are optional! function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement, slotName) { var transcludeControllers; // No scope passed in: if (!isScope(scope)) { slotName = futureParentElement; futureParentElement = cloneAttachFn; cloneAttachFn = scope; scope = undefined; } if (hasElementTranscludeDirective) { transcludeControllers = elementControllers; } if (!futureParentElement) { futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element; } if (slotName) { // slotTranscludeFn can be one of three things: // * a transclude function - a filled slot // * `null` - an optional slot that was not filled // * `undefined` - a slot that was not declared (i.e. invalid) var slotTranscludeFn = boundTranscludeFn.$$slots[slotName]; if (slotTranscludeFn) { return slotTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild); } else if (isUndefined(slotTranscludeFn)) { throw $compileMinErr('noslot', 'No parent directive that requires a transclusion with slot name "{0}". ' + 'Element: {1}', slotName, startingTag($element)); } } else { return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild); } } } } function getControllers(directiveName, require, $element, elementControllers) { var value; if (isString(require)) { var match = require.match(REQUIRE_PREFIX_REGEXP); var name = require.substring(match[0].length); var inheritType = match[1] || match[3]; var optional = match[2] === '?'; //If only parents then start at the parent element if (inheritType === '^^') { $element = $element.parent(); //Otherwise attempt getting the controller from elementControllers in case //the element is transcluded (and has no data) and to avoid .data if possible } else { value = elementControllers && elementControllers[name]; value = value && value.instance; } if (!value) { var dataName = '$' + name + 'Controller'; value = inheritType ? $element.inheritedData(dataName) : $element.data(dataName); } if (!value && !optional) { throw $compileMinErr('ctreq', 'Controller \'{0}\', required by directive \'{1}\', can\'t be found!', name, directiveName); } } else if (isArray(require)) { value = []; for (var i = 0, ii = require.length; i < ii; i++) { value[i] = getControllers(directiveName, require[i], $element, elementControllers); } } else if (isObject(require)) { value = {}; forEach(require, function(controller, property) { value[property] = getControllers(directiveName, controller, $element, elementControllers); }); } return value || null; } function setupControllers($element, attrs, transcludeFn, controllerDirectives, isolateScope, scope, newIsolateScopeDirective) { var elementControllers = createMap(); for (var controllerKey in controllerDirectives) { var directive = controllerDirectives[controllerKey]; var locals = { $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope, $element: $element, $attrs: attrs, $transclude: transcludeFn }; var controller = directive.controller; if (controller === '@') { controller = attrs[directive.name]; } var controllerInstance = $controller(controller, locals, true, directive.controllerAs); // For directives with element transclusion the element is a comment. // In this case .data will not attach any data. // Instead, we save the controllers for the element in a local hash and attach to .data // later, once we have the actual element. elementControllers[directive.name] = controllerInstance; $element.data('$' + directive.name + 'Controller', controllerInstance.instance); } return elementControllers; } // Depending upon the context in which a directive finds itself it might need to have a new isolated // or child scope created. For instance: // * if the directive has been pulled into a template because another directive with a higher priority // asked for element transclusion // * if the directive itself asks for transclusion but it is at the root of a template and the original // element was replaced. See https://github.com/angular/angular.js/issues/12936 function markDirectiveScope(directives, isolateScope, newScope) { for (var j = 0, jj = directives.length; j < jj; j++) { directives[j] = inherit(directives[j], {$$isolateScope: isolateScope, $$newScope: newScope}); } } /** * looks up the directive and decorates it with exception handling and proper parameters. We * call this the boundDirective. * * @param {string} name name of the directive to look up. * @param {string} location The directive must be found in specific format. * String containing any of theses characters: * * * `E`: element name * * `A': attribute * * `C`: class * * `M`: comment * @returns {boolean} true if directive was added. */ function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName, endAttrName) { if (name === ignoreDirective) return null; var match = null; if (hasDirectives.hasOwnProperty(name)) { for (var directive, directives = $injector.get(name + Suffix), i = 0, ii = directives.length; i < ii; i++) { directive = directives[i]; if ((isUndefined(maxPriority) || maxPriority > directive.priority) && directive.restrict.indexOf(location) !== -1) { if (startAttrName) { directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName}); } if (!directive.$$bindings) { var bindings = directive.$$bindings = parseDirectiveBindings(directive, directive.name); if (isObject(bindings.isolateScope)) { directive.$$isolateBindings = bindings.isolateScope; } } tDirectives.push(directive); match = directive; } } } return match; } /** * looks up the directive and returns true if it is a multi-element directive, * and therefore requires DOM nodes between -start and -end markers to be grouped * together. * * @param {string} name name of the directive to look up. * @returns true if directive was registered as multi-element. */ function directiveIsMultiElement(name) { if (hasDirectives.hasOwnProperty(name)) { for (var directive, directives = $injector.get(name + Suffix), i = 0, ii = directives.length; i < ii; i++) { directive = directives[i]; if (directive.multiElement) { return true; } } } return false; } /** * When the element is replaced with HTML template then the new attributes * on the template need to be merged with the existing attributes in the DOM. * The desired effect is to have both of the attributes present. * * @param {object} dst destination attributes (original DOM) * @param {object} src source attributes (from the directive template) */ function mergeTemplateAttributes(dst, src) { var srcAttr = src.$attr, dstAttr = dst.$attr; // reapply the old attributes to the new element forEach(dst, function(value, key) { if (key.charAt(0) !== '$') { if (src[key] && src[key] !== value) { if (value.length) { value += (key === 'style' ? ';' : ' ') + src[key]; } else { value = src[key]; } } dst.$set(key, value, true, srcAttr[key]); } }); // copy the new attributes on the old attrs object forEach(src, function(value, key) { // Check if we already set this attribute in the loop above. // `dst` will never contain hasOwnProperty as DOM parser won't let it. // You will get an "InvalidCharacterError: DOM Exception 5" error if you // have an attribute like "has-own-property" or "data-has-own-property", etc. if (!dst.hasOwnProperty(key) && key.charAt(0) !== '$') { dst[key] = value; if (key !== 'class' && key !== 'style') { dstAttr[key] = srcAttr[key]; } } }); } function compileTemplateUrl(directives, $compileNode, tAttrs, $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) { var linkQueue = [], afterTemplateNodeLinkFn, afterTemplateChildLinkFn, beforeTemplateCompileNode = $compileNode[0], origAsyncDirective = directives.shift(), derivedSyncDirective = inherit(origAsyncDirective, { templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective }), templateUrl = (isFunction(origAsyncDirective.templateUrl)) ? origAsyncDirective.templateUrl($compileNode, tAttrs) : origAsyncDirective.templateUrl, templateNamespace = origAsyncDirective.templateNamespace; $compileNode.empty(); $templateRequest(templateUrl) .then(function(content) { var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn; content = denormalizeTemplate(content); if (origAsyncDirective.replace) { if (jqLiteIsTextNode(content)) { $template = []; } else { $template = removeComments(wrapTemplate(templateNamespace, trim(content))); } compileNode = $template[0]; if ($template.length !== 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) { throw $compileMinErr('tplrt', 'Template for directive \'{0}\' must have exactly one root element. {1}', origAsyncDirective.name, templateUrl); } tempTemplateAttrs = {$attr: {}}; replaceWith($rootElement, $compileNode, compileNode); var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs); if (isObject(origAsyncDirective.scope)) { // the original directive that caused the template to be loaded async required // an isolate scope markDirectiveScope(templateDirectives, true); } directives = templateDirectives.concat(directives); mergeTemplateAttributes(tAttrs, tempTemplateAttrs); } else { compileNode = beforeTemplateCompileNode; $compileNode.html(content); } directives.unshift(derivedSyncDirective); afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs, childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns, previousCompileContext); forEach($rootElement, function(node, i) { if (node === compileNode) { $rootElement[i] = $compileNode[0]; } }); afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn); while (linkQueue.length) { var scope = linkQueue.shift(), beforeTemplateLinkNode = linkQueue.shift(), linkRootElement = linkQueue.shift(), boundTranscludeFn = linkQueue.shift(), linkNode = $compileNode[0]; if (scope.$$destroyed) continue; if (beforeTemplateLinkNode !== beforeTemplateCompileNode) { var oldClasses = beforeTemplateLinkNode.className; if (!(previousCompileContext.hasElementTranscludeDirective && origAsyncDirective.replace)) { // it was cloned therefore we have to clone as well. linkNode = jqLiteClone(compileNode); } replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode); // Copy in CSS classes from original node safeAddClass(jqLite(linkNode), oldClasses); } if (afterTemplateNodeLinkFn.transcludeOnThisElement) { childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn); } else { childBoundTranscludeFn = boundTranscludeFn; } afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement, childBoundTranscludeFn); } linkQueue = null; }).catch(function(error) { if (error instanceof Error) { $exceptionHandler(error); } }).catch(noop); return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) { var childBoundTranscludeFn = boundTranscludeFn; if (scope.$$destroyed) return; if (linkQueue) { linkQueue.push(scope, node, rootElement, childBoundTranscludeFn); } else { if (afterTemplateNodeLinkFn.transcludeOnThisElement) { childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn); } afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn); } }; } /** * Sorting function for bound directives. */ function byPriority(a, b) { var diff = b.priority - a.priority; if (diff !== 0) return diff; if (a.name !== b.name) return (a.name < b.name) ? -1 : 1; return a.index - b.index; } function assertNoDuplicate(what, previousDirective, directive, element) { function wrapModuleNameIfDefined(moduleName) { return moduleName ? (' (module: ' + moduleName + ')') : ''; } if (previousDirective) { throw $compileMinErr('multidir', 'Multiple directives [{0}{1}, {2}{3}] asking for {4} on: {5}', previousDirective.name, wrapModuleNameIfDefined(previousDirective.$$moduleName), directive.name, wrapModuleNameIfDefined(directive.$$moduleName), what, startingTag(element)); } } function addTextInterpolateDirective(directives, text) { var interpolateFn = $interpolate(text, true); if (interpolateFn) { directives.push({ priority: 0, compile: function textInterpolateCompileFn(templateNode) { var templateNodeParent = templateNode.parent(), hasCompileParent = !!templateNodeParent.length; // When transcluding a template that has bindings in the root // we don't have a parent and thus need to add the class during linking fn. if (hasCompileParent) compile.$$addBindingClass(templateNodeParent); return function textInterpolateLinkFn(scope, node) { var parent = node.parent(); if (!hasCompileParent) compile.$$addBindingClass(parent); compile.$$addBindingInfo(parent, interpolateFn.expressions); scope.$watch(interpolateFn, function interpolateFnWatchAction(value) { node[0].nodeValue = value; }); }; } }); } } function wrapTemplate(type, template) { type = lowercase(type || 'html'); switch (type) { case 'svg': case 'math': var wrapper = window.document.createElement('div'); wrapper.innerHTML = '<' + type + '>' + template + ''; return wrapper.childNodes[0].childNodes; default: return template; } } function getTrustedContext(node, attrNormalizedName) { if (attrNormalizedName === 'srcdoc') { return $sce.HTML; } var tag = nodeName_(node); // All tags with src attributes require a RESOURCE_URL value, except for // img and various html5 media tags. if (attrNormalizedName === 'src' || attrNormalizedName === 'ngSrc') { if (['img', 'video', 'audio', 'source', 'track'].indexOf(tag) === -1) { return $sce.RESOURCE_URL; } // maction[xlink:href] can source SVG. It's not limited to . } else if (attrNormalizedName === 'xlinkHref' || (tag === 'form' && attrNormalizedName === 'action') || // links can be stylesheets or imports, which can run script in the current origin (tag === 'link' && attrNormalizedName === 'href') ) { return $sce.RESOURCE_URL; } } function addAttrInterpolateDirective(node, directives, value, name, isNgAttr) { var trustedContext = getTrustedContext(node, name); var mustHaveExpression = !isNgAttr; var allOrNothing = ALL_OR_NOTHING_ATTRS[name] || isNgAttr; var interpolateFn = $interpolate(value, mustHaveExpression, trustedContext, allOrNothing); // no interpolation found -> ignore if (!interpolateFn) return; if (name === 'multiple' && nodeName_(node) === 'select') { throw $compileMinErr('selmulti', 'Binding to the \'multiple\' attribute is not supported. Element: {0}', startingTag(node)); } if (EVENT_HANDLER_ATTR_REGEXP.test(name)) { throw $compileMinErr('nodomevents', 'Interpolations for HTML DOM event attributes are disallowed. Please use the ' + 'ng- versions (such as ng-click instead of onclick) instead.'); } directives.push({ priority: 100, compile: function() { return { pre: function attrInterpolatePreLinkFn(scope, element, attr) { var $$observers = (attr.$$observers || (attr.$$observers = createMap())); // If the attribute has changed since last $interpolate()ed var newValue = attr[name]; if (newValue !== value) { // we need to interpolate again since the attribute value has been updated // (e.g. by another directive's compile function) // ensure unset/empty values make interpolateFn falsy interpolateFn = newValue && $interpolate(newValue, true, trustedContext, allOrNothing); value = newValue; } // if attribute was updated so that there is no interpolation going on we don't want to // register any observers if (!interpolateFn) return; // initialize attr object so that it's ready in case we need the value for isolate // scope initialization, otherwise the value would not be available from isolate // directive's linking fn during linking phase attr[name] = interpolateFn(scope); ($$observers[name] || ($$observers[name] = [])).$$inter = true; (attr.$$observers && attr.$$observers[name].$$scope || scope). $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) { //special case for class attribute addition + removal //so that class changes can tap into the animation //hooks provided by the $animate service. Be sure to //skip animations when the first digest occurs (when //both the new and the old values are the same) since //the CSS classes are the non-interpolated values if (name === 'class' && newValue !== oldValue) { attr.$updateClass(newValue, oldValue); } else { attr.$set(name, newValue); } }); } }; } }); } /** * This is a special jqLite.replaceWith, which can replace items which * have no parents, provided that the containing jqLite collection is provided. * * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes * in the root of the tree. * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep * the shell, but replace its DOM node reference. * @param {Node} newNode The new DOM node. */ function replaceWith($rootElement, elementsToRemove, newNode) { var firstElementToRemove = elementsToRemove[0], removeCount = elementsToRemove.length, parent = firstElementToRemove.parentNode, i, ii; if ($rootElement) { for (i = 0, ii = $rootElement.length; i < ii; i++) { if ($rootElement[i] === firstElementToRemove) { $rootElement[i++] = newNode; for (var j = i, j2 = j + removeCount - 1, jj = $rootElement.length; j < jj; j++, j2++) { if (j2 < jj) { $rootElement[j] = $rootElement[j2]; } else { delete $rootElement[j]; } } $rootElement.length -= removeCount - 1; // If the replaced element is also the jQuery .context then replace it // .context is a deprecated jQuery api, so we should set it only when jQuery set it // http://api.jquery.com/context/ if ($rootElement.context === firstElementToRemove) { $rootElement.context = newNode; } break; } } } if (parent) { parent.replaceChild(newNode, firstElementToRemove); } // Append all the `elementsToRemove` to a fragment. This will... // - remove them from the DOM // - allow them to still be traversed with .nextSibling // - allow a single fragment.qSA to fetch all elements being removed var fragment = window.document.createDocumentFragment(); for (i = 0; i < removeCount; i++) { fragment.appendChild(elementsToRemove[i]); } if (jqLite.hasData(firstElementToRemove)) { // Copy over user data (that includes Angular's $scope etc.). Don't copy private // data here because there's no public interface in jQuery to do that and copying over // event listeners (which is the main use of private data) wouldn't work anyway. jqLite.data(newNode, jqLite.data(firstElementToRemove)); // Remove $destroy event listeners from `firstElementToRemove` jqLite(firstElementToRemove).off('$destroy'); } // Cleanup any data/listeners on the elements and children. // This includes invoking the $destroy event on any elements with listeners. jqLite.cleanData(fragment.querySelectorAll('*')); // Update the jqLite collection to only contain the `newNode` for (i = 1; i < removeCount; i++) { delete elementsToRemove[i]; } elementsToRemove[0] = newNode; elementsToRemove.length = 1; } function cloneAndAnnotateFn(fn, annotation) { return extend(function() { return fn.apply(null, arguments); }, fn, annotation); } function invokeLinkFn(linkFn, scope, $element, attrs, controllers, transcludeFn) { try { linkFn(scope, $element, attrs, controllers, transcludeFn); } catch (e) { $exceptionHandler(e, startingTag($element)); } } // Set up $watches for isolate scope and controller bindings. function initializeDirectiveBindings(scope, attrs, destination, bindings, directive) { var removeWatchCollection = []; var initialChanges = {}; var changes; forEach(bindings, function initializeBinding(definition, scopeName) { var attrName = definition.attrName, optional = definition.optional, mode = definition.mode, // @, =, <, or & lastValue, parentGet, parentSet, compare, removeWatch; switch (mode) { case '@': if (!optional && !hasOwnProperty.call(attrs, attrName)) { destination[scopeName] = attrs[attrName] = undefined; } removeWatch = attrs.$observe(attrName, function(value) { if (isString(value) || isBoolean(value)) { var oldValue = destination[scopeName]; recordChanges(scopeName, value, oldValue); destination[scopeName] = value; } }); attrs.$$observers[attrName].$$scope = scope; lastValue = attrs[attrName]; if (isString(lastValue)) { // If the attribute has been provided then we trigger an interpolation to ensure // the value is there for use in the link fn destination[scopeName] = $interpolate(lastValue)(scope); } else if (isBoolean(lastValue)) { // If the attributes is one of the BOOLEAN_ATTR then Angular will have converted // the value to boolean rather than a string, so we special case this situation destination[scopeName] = lastValue; } initialChanges[scopeName] = new SimpleChange(_UNINITIALIZED_VALUE, destination[scopeName]); removeWatchCollection.push(removeWatch); break; case '=': if (!hasOwnProperty.call(attrs, attrName)) { if (optional) break; attrs[attrName] = undefined; } if (optional && !attrs[attrName]) break; parentGet = $parse(attrs[attrName]); if (parentGet.literal) { compare = equals; } else { // eslint-disable-next-line no-self-compare compare = function simpleCompare(a, b) { return a === b || (a !== a && b !== b); }; } parentSet = parentGet.assign || function() { // reset the change, or we will throw this exception on every $digest lastValue = destination[scopeName] = parentGet(scope); throw $compileMinErr('nonassign', 'Expression \'{0}\' in attribute \'{1}\' used with directive \'{2}\' is non-assignable!', attrs[attrName], attrName, directive.name); }; lastValue = destination[scopeName] = parentGet(scope); var parentValueWatch = function parentValueWatch(parentValue) { if (!compare(parentValue, destination[scopeName])) { // we are out of sync and need to copy if (!compare(parentValue, lastValue)) { // parent changed and it has precedence destination[scopeName] = parentValue; } else { // if the parent can be assigned then do so parentSet(scope, parentValue = destination[scopeName]); } } lastValue = parentValue; return lastValue; }; parentValueWatch.$stateful = true; if (definition.collection) { removeWatch = scope.$watchCollection(attrs[attrName], parentValueWatch); } else { removeWatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal); } removeWatchCollection.push(removeWatch); break; case '<': if (!hasOwnProperty.call(attrs, attrName)) { if (optional) break; attrs[attrName] = undefined; } if (optional && !attrs[attrName]) break; parentGet = $parse(attrs[attrName]); var deepWatch = parentGet.literal; var initialValue = destination[scopeName] = parentGet(scope); initialChanges[scopeName] = new SimpleChange(_UNINITIALIZED_VALUE, destination[scopeName]); removeWatch = scope.$watch(parentGet, function parentValueWatchAction(newValue, oldValue) { if (oldValue === newValue) { if (oldValue === initialValue || (deepWatch && equals(oldValue, initialValue))) { return; } oldValue = initialValue; } recordChanges(scopeName, newValue, oldValue); destination[scopeName] = newValue; }, deepWatch); removeWatchCollection.push(removeWatch); break; case '&': // Don't assign Object.prototype method to scope parentGet = attrs.hasOwnProperty(attrName) ? $parse(attrs[attrName]) : noop; // Don't assign noop to destination if expression is not valid if (parentGet === noop && optional) break; destination[scopeName] = function(locals) { return parentGet(scope, locals); }; break; } }); function recordChanges(key, currentValue, previousValue) { if (isFunction(destination.$onChanges) && currentValue !== previousValue && // eslint-disable-next-line no-self-compare (currentValue === currentValue || previousValue === previousValue)) { // If we have not already scheduled the top level onChangesQueue handler then do so now if (!onChangesQueue) { scope.$$postDigest(flushOnChangesQueue); onChangesQueue = []; } // If we have not already queued a trigger of onChanges for this controller then do so now if (!changes) { changes = {}; onChangesQueue.push(triggerOnChangesHook); } // If the has been a change on this property already then we need to reuse the previous value if (changes[key]) { previousValue = changes[key].previousValue; } // Store this change changes[key] = new SimpleChange(previousValue, currentValue); } } function triggerOnChangesHook() { destination.$onChanges(changes); // Now clear the changes so that we schedule onChanges when more changes arrive changes = undefined; } return { initialChanges: initialChanges, removeWatches: removeWatchCollection.length && function removeWatches() { for (var i = 0, ii = removeWatchCollection.length; i < ii; ++i) { removeWatchCollection[i](); } } }; } }]; } function SimpleChange(previous, current) { this.previousValue = previous; this.currentValue = current; } SimpleChange.prototype.isFirstChange = function() { return this.previousValue === _UNINITIALIZED_VALUE; }; var PREFIX_REGEXP = /^((?:x|data)[:\-_])/i; var SPECIAL_CHARS_REGEXP = /[:\-_]+(.)/g; /** * Converts all accepted directives format into proper directive name. * @param name Name to normalize */ function directiveNormalize(name) { return name .replace(PREFIX_REGEXP, '') .replace(SPECIAL_CHARS_REGEXP, fnCamelCaseReplace); } /** * @ngdoc type * @name $compile.directive.Attributes * * @description * A shared object between directive compile / linking functions which contains normalized DOM * element attributes. The values reflect current binding state `{{ }}`. The normalization is * needed since all of these are treated as equivalent in Angular: * * ``` * * ``` */ /** * @ngdoc property * @name $compile.directive.Attributes#$attr * * @description * A map of DOM element attribute names to the normalized name. This is * needed to do reverse lookup from normalized name back to actual name. */ /** * @ngdoc method * @name $compile.directive.Attributes#$set * @kind function * * @description * Set DOM element attribute value. * * * @param {string} name Normalized element attribute name of the property to modify. The name is * reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr} * property to the original name. * @param {string} value Value to set the attribute to. The value can be an interpolated string. */ /** * Closure compiler type information */ function nodesetLinkingFn( /* angular.Scope */ scope, /* NodeList */ nodeList, /* Element */ rootElement, /* function(Function) */ boundTranscludeFn ) {} function directiveLinkingFn( /* nodesetLinkingFn */ nodesetLinkingFn, /* angular.Scope */ scope, /* Node */ node, /* Element */ rootElement, /* function(Function) */ boundTranscludeFn ) {} function tokenDifference(str1, str2) { var values = '', tokens1 = str1.split(/\s+/), tokens2 = str2.split(/\s+/); outer: for (var i = 0; i < tokens1.length; i++) { var token = tokens1[i]; for (var j = 0; j < tokens2.length; j++) { if (token === tokens2[j]) continue outer; } values += (values.length > 0 ? ' ' : '') + token; } return values; } function removeComments(jqNodes) { jqNodes = jqLite(jqNodes); var i = jqNodes.length; if (i <= 1) { return jqNodes; } while (i--) { var node = jqNodes[i]; if (node.nodeType === NODE_TYPE_COMMENT || (node.nodeType === NODE_TYPE_TEXT && node.nodeValue.trim() === '')) { splice.call(jqNodes, i, 1); } } return jqNodes; } var $controllerMinErr = minErr('$controller'); var CNTRL_REG = /^(\S+)(\s+as\s+([\w$]+))?$/; function identifierForController(controller, ident) { if (ident && isString(ident)) return ident; if (isString(controller)) { var match = CNTRL_REG.exec(controller); if (match) return match[3]; } } /** * @ngdoc provider * @name $controllerProvider * @this * * @description * The {@link ng.$controller $controller service} is used by Angular to create new * controllers. * * This provider allows controller registration via the * {@link ng.$controllerProvider#register register} method. */ function $ControllerProvider() { var controllers = {}, globals = false; /** * @ngdoc method * @name $controllerProvider#has * @param {string} name Controller name to check. */ this.has = function(name) { return controllers.hasOwnProperty(name); }; /** * @ngdoc method * @name $controllerProvider#register * @param {string|Object} name Controller name, or an object map of controllers where the keys are * the names and the values are the constructors. * @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI * annotations in the array notation). */ this.register = function(name, constructor) { assertNotHasOwnProperty(name, 'controller'); if (isObject(name)) { extend(controllers, name); } else { controllers[name] = constructor; } }; /** * @ngdoc method * @name $controllerProvider#allowGlobals * @description If called, allows `$controller` to find controller constructors on `window` * * @deprecated * sinceVersion="v1.3.0" * removeVersion="v1.7.0" * This method of finding controllers has been deprecated. */ this.allowGlobals = function() { globals = true; }; this.$get = ['$injector', '$window', function($injector, $window) { /** * @ngdoc service * @name $controller * @requires $injector * * @param {Function|string} constructor If called with a function then it's considered to be the * controller constructor function. Otherwise it's considered to be a string which is used * to retrieve the controller constructor using the following steps: * * * check if a controller with given name is registered via `$controllerProvider` * * check if evaluating the string on the current scope returns a constructor * * if $controllerProvider#allowGlobals, check `window[constructor]` on the global * `window` object (deprecated, not recommended) * * The string can use the `controller as property` syntax, where the controller instance is published * as the specified property on the `scope`; the `scope` must be injected into `locals` param for this * to work correctly. * * @param {Object} locals Injection locals for Controller. * @return {Object} Instance of given controller. * * @description * `$controller` service is responsible for instantiating controllers. * * It's just a simple call to {@link auto.$injector $injector}, but extracted into * a service, so that one can override this service with [BC version](https://gist.github.com/1649788). */ return function $controller(expression, locals, later, ident) { // PRIVATE API: // param `later` --- indicates that the controller's constructor is invoked at a later time. // If true, $controller will allocate the object with the correct // prototype chain, but will not invoke the controller until a returned // callback is invoked. // param `ident` --- An optional label which overrides the label parsed from the controller // expression, if any. var instance, match, constructor, identifier; later = later === true; if (ident && isString(ident)) { identifier = ident; } if (isString(expression)) { match = expression.match(CNTRL_REG); if (!match) { throw $controllerMinErr('ctrlfmt', 'Badly formed controller string \'{0}\'. ' + 'Must match `__name__ as __id__` or `__name__`.', expression); } constructor = match[1]; identifier = identifier || match[3]; expression = controllers.hasOwnProperty(constructor) ? controllers[constructor] : getter(locals.$scope, constructor, true) || (globals ? getter($window, constructor, true) : undefined); if (!expression) { throw $controllerMinErr('ctrlreg', 'The controller with the name \'{0}\' is not registered.', constructor); } assertArgFn(expression, constructor, true); } if (later) { // Instantiate controller later: // This machinery is used to create an instance of the object before calling the // controller's constructor itself. // // This allows properties to be added to the controller before the constructor is // invoked. Primarily, this is used for isolate scope bindings in $compile. // // This feature is not intended for use by applications, and is thus not documented // publicly. // Object creation: http://jsperf.com/create-constructor/2 var controllerPrototype = (isArray(expression) ? expression[expression.length - 1] : expression).prototype; instance = Object.create(controllerPrototype || null); if (identifier) { addIdentifier(locals, identifier, instance, constructor || expression.name); } return extend(function $controllerInit() { var result = $injector.invoke(expression, instance, locals, constructor); if (result !== instance && (isObject(result) || isFunction(result))) { instance = result; if (identifier) { // If result changed, re-assign controllerAs value to scope. addIdentifier(locals, identifier, instance, constructor || expression.name); } } return instance; }, { instance: instance, identifier: identifier }); } instance = $injector.instantiate(expression, locals, constructor); if (identifier) { addIdentifier(locals, identifier, instance, constructor || expression.name); } return instance; }; function addIdentifier(locals, identifier, instance, name) { if (!(locals && isObject(locals.$scope))) { throw minErr('$controller')('noscp', 'Cannot export controller \'{0}\' as \'{1}\'! No $scope object provided via `locals`.', name, identifier); } locals.$scope[identifier] = instance; } }]; } /** * @ngdoc service * @name $document * @requires $window * @this * * @description * A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object. * * @example

$document title:

window.document title:

angular.module('documentExample', []) .controller('ExampleController', ['$scope', '$document', function($scope, $document) { $scope.title = $document[0].title; $scope.windowTitle = angular.element(window.document)[0].title; }]); */ function $DocumentProvider() { this.$get = ['$window', function(window) { return jqLite(window.document); }]; } /** * @private * @this * Listens for document visibility change and makes the current status accessible. */ function $$IsDocumentHiddenProvider() { this.$get = ['$document', '$rootScope', function($document, $rootScope) { var doc = $document[0]; var hidden = doc && doc.hidden; $document.on('visibilitychange', changeListener); $rootScope.$on('$destroy', function() { $document.off('visibilitychange', changeListener); }); function changeListener() { hidden = doc.hidden; } return function() { return hidden; }; }]; } /** * @ngdoc service * @name $exceptionHandler * @requires ng.$log * @this * * @description * Any uncaught exception in angular expressions is delegated to this service. * The default implementation simply delegates to `$log.error` which logs it into * the browser console. * * In unit tests, if `angular-mocks.js` is loaded, this service is overridden by * {@link ngMock.$exceptionHandler mock $exceptionHandler} which aids in testing. * * ## Example: * * The example below will overwrite the default `$exceptionHandler` in order to (a) log uncaught * errors to the backend for later inspection by the developers and (b) to use `$log.warn()` instead * of `$log.error()`. * * ```js * angular. * module('exceptionOverwrite', []). * factory('$exceptionHandler', ['$log', 'logErrorsToBackend', function($log, logErrorsToBackend) { * return function myExceptionHandler(exception, cause) { * logErrorsToBackend(exception, cause); * $log.warn(exception, cause); * }; * }]); * ``` * *
* Note, that code executed in event-listeners (even those registered using jqLite's `on`/`bind` * methods) does not delegate exceptions to the {@link ng.$exceptionHandler $exceptionHandler} * (unless executed during a digest). * * If you wish, you can manually delegate exceptions, e.g. * `try { ... } catch(e) { $exceptionHandler(e); }` * * @param {Error} exception Exception associated with the error. * @param {string=} cause Optional information about the context in which * the error was thrown. * */ function $ExceptionHandlerProvider() { this.$get = ['$log', function($log) { return function(exception, cause) { $log.error.apply($log, arguments); }; }]; } var $$ForceReflowProvider = /** @this */ function() { this.$get = ['$document', function($document) { return function(domNode) { //the line below will force the browser to perform a repaint so //that all the animated elements within the animation frame will //be properly updated and drawn on screen. This is required to //ensure that the preparation animation is properly flushed so that //the active state picks up from there. DO NOT REMOVE THIS LINE. //DO NOT OPTIMIZE THIS LINE. THE MINIFIER WILL REMOVE IT OTHERWISE WHICH //WILL RESULT IN AN UNPREDICTABLE BUG THAT IS VERY HARD TO TRACK DOWN AND //WILL TAKE YEARS AWAY FROM YOUR LIFE. if (domNode) { if (!domNode.nodeType && domNode instanceof jqLite) { domNode = domNode[0]; } } else { domNode = $document[0].body; } return domNode.offsetWidth + 1; }; }]; }; var APPLICATION_JSON = 'application/json'; var CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': APPLICATION_JSON + ';charset=utf-8'}; var JSON_START = /^\[|^\{(?!\{)/; var JSON_ENDS = { '[': /]$/, '{': /}$/ }; var JSON_PROTECTION_PREFIX = /^\)]\}',?\n/; var $httpMinErr = minErr('$http'); function serializeValue(v) { if (isObject(v)) { return isDate(v) ? v.toISOString() : toJson(v); } return v; } /** @this */ function $HttpParamSerializerProvider() { /** * @ngdoc service * @name $httpParamSerializer * @description * * Default {@link $http `$http`} params serializer that converts objects to strings * according to the following rules: * * * `{'foo': 'bar'}` results in `foo=bar` * * `{'foo': Date.now()}` results in `foo=2015-04-01T09%3A50%3A49.262Z` (`toISOString()` and encoded representation of a Date object) * * `{'foo': ['bar', 'baz']}` results in `foo=bar&foo=baz` (repeated key for each array element) * * `{'foo': {'bar':'baz'}}` results in `foo=%7B%22bar%22%3A%22baz%22%7D` (stringified and encoded representation of an object) * * Note that serializer will sort the request parameters alphabetically. * */ this.$get = function() { return function ngParamSerializer(params) { if (!params) return ''; var parts = []; forEachSorted(params, function(value, key) { if (value === null || isUndefined(value)) return; if (isArray(value)) { forEach(value, function(v) { parts.push(encodeUriQuery(key) + '=' + encodeUriQuery(serializeValue(v))); }); } else { parts.push(encodeUriQuery(key) + '=' + encodeUriQuery(serializeValue(value))); } }); return parts.join('&'); }; }; } /** @this */ function $HttpParamSerializerJQLikeProvider() { /** * @ngdoc service * @name $httpParamSerializerJQLike * * @description * * Alternative {@link $http `$http`} params serializer that follows * jQuery's [`param()`](http://api.jquery.com/jquery.param/) method logic. * The serializer will also sort the params alphabetically. * * To use it for serializing `$http` request parameters, set it as the `paramSerializer` property: * * ```js * $http({ * url: myUrl, * method: 'GET', * params: myParams, * paramSerializer: '$httpParamSerializerJQLike' * }); * ``` * * It is also possible to set it as the default `paramSerializer` in the * {@link $httpProvider#defaults `$httpProvider`}. * * Additionally, you can inject the serializer and use it explicitly, for example to serialize * form data for submission: * * ```js * .controller(function($http, $httpParamSerializerJQLike) { * //... * * $http({ * url: myUrl, * method: 'POST', * data: $httpParamSerializerJQLike(myData), * headers: { * 'Content-Type': 'application/x-www-form-urlencoded' * } * }); * * }); * ``` * * */ this.$get = function() { return function jQueryLikeParamSerializer(params) { if (!params) return ''; var parts = []; serialize(params, '', true); return parts.join('&'); function serialize(toSerialize, prefix, topLevel) { if (toSerialize === null || isUndefined(toSerialize)) return; if (isArray(toSerialize)) { forEach(toSerialize, function(value, index) { serialize(value, prefix + '[' + (isObject(value) ? index : '') + ']'); }); } else if (isObject(toSerialize) && !isDate(toSerialize)) { forEachSorted(toSerialize, function(value, key) { serialize(value, prefix + (topLevel ? '' : '[') + key + (topLevel ? '' : ']')); }); } else { parts.push(encodeUriQuery(prefix) + '=' + encodeUriQuery(serializeValue(toSerialize))); } } }; }; } function defaultHttpResponseTransform(data, headers) { if (isString(data)) { // Strip json vulnerability protection prefix and trim whitespace var tempData = data.replace(JSON_PROTECTION_PREFIX, '').trim(); if (tempData) { var contentType = headers('Content-Type'); if ((contentType && (contentType.indexOf(APPLICATION_JSON) === 0)) || isJsonLike(tempData)) { data = fromJson(tempData); } } } return data; } function isJsonLike(str) { var jsonStart = str.match(JSON_START); return jsonStart && JSON_ENDS[jsonStart[0]].test(str); } /** * Parse headers into key value object * * @param {string} headers Raw headers as a string * @returns {Object} Parsed headers as key value object */ function parseHeaders(headers) { var parsed = createMap(), i; function fillInParsed(key, val) { if (key) { parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val; } } if (isString(headers)) { forEach(headers.split('\n'), function(line) { i = line.indexOf(':'); fillInParsed(lowercase(trim(line.substr(0, i))), trim(line.substr(i + 1))); }); } else if (isObject(headers)) { forEach(headers, function(headerVal, headerKey) { fillInParsed(lowercase(headerKey), trim(headerVal)); }); } return parsed; } /** * Returns a function that provides access to parsed headers. * * Headers are lazy parsed when first requested. * @see parseHeaders * * @param {(string|Object)} headers Headers to provide access to. * @returns {function(string=)} Returns a getter function which if called with: * * - if called with an argument returns a single header value or null * - if called with no arguments returns an object containing all headers. */ function headersGetter(headers) { var headersObj; return function(name) { if (!headersObj) headersObj = parseHeaders(headers); if (name) { var value = headersObj[lowercase(name)]; if (value === undefined) { value = null; } return value; } return headersObj; }; } /** * Chain all given functions * * This function is used for both request and response transforming * * @param {*} data Data to transform. * @param {function(string=)} headers HTTP headers getter fn. * @param {number} status HTTP status code of the response. * @param {(Function|Array.)} fns Function or an array of functions. * @returns {*} Transformed data. */ function transformData(data, headers, status, fns) { if (isFunction(fns)) { return fns(data, headers, status); } forEach(fns, function(fn) { data = fn(data, headers, status); }); return data; } function isSuccess(status) { return 200 <= status && status < 300; } /** * @ngdoc provider * @name $httpProvider * @this * * @description * Use `$httpProvider` to change the default behavior of the {@link ng.$http $http} service. * */ function $HttpProvider() { /** * @ngdoc property * @name $httpProvider#defaults * @description * * Object containing default values for all {@link ng.$http $http} requests. * * - **`defaults.cache`** - {boolean|Object} - A boolean value or object created with * {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of HTTP responses * by default. See {@link $http#caching $http Caching} for more information. * * - **`defaults.xsrfCookieName`** - {string} - Name of cookie containing the XSRF token. * Defaults value is `'XSRF-TOKEN'`. * * - **`defaults.xsrfHeaderName`** - {string} - Name of HTTP header to populate with the * XSRF token. Defaults value is `'X-XSRF-TOKEN'`. * * - **`defaults.headers`** - {Object} - Default headers for all $http requests. * Refer to {@link ng.$http#setting-http-headers $http} for documentation on * setting default headers. * - **`defaults.headers.common`** * - **`defaults.headers.post`** * - **`defaults.headers.put`** * - **`defaults.headers.patch`** * * * - **`defaults.paramSerializer`** - `{string|function(Object):string}` - A function * used to the prepare string representation of request parameters (specified as an object). * If specified as string, it is interpreted as a function registered with the {@link auto.$injector $injector}. * Defaults to {@link ng.$httpParamSerializer $httpParamSerializer}. * * - **`defaults.jsonpCallbackParam`** - `{string}` - the name of the query parameter that passes the name of the * callback in a JSONP request. The value of this parameter will be replaced with the expression generated by the * {@link $jsonpCallbacks} service. Defaults to `'callback'`. * **/ var defaults = this.defaults = { // transform incoming response data transformResponse: [defaultHttpResponseTransform], // transform outgoing request data transformRequest: [function(d) { return isObject(d) && !isFile(d) && !isBlob(d) && !isFormData(d) ? toJson(d) : d; }], // default headers headers: { common: { 'Accept': 'application/json, text/plain, */*' }, post: shallowCopy(CONTENT_TYPE_APPLICATION_JSON), put: shallowCopy(CONTENT_TYPE_APPLICATION_JSON), patch: shallowCopy(CONTENT_TYPE_APPLICATION_JSON) }, xsrfCookieName: 'XSRF-TOKEN', xsrfHeaderName: 'X-XSRF-TOKEN', paramSerializer: '$httpParamSerializer', jsonpCallbackParam: 'callback' }; var useApplyAsync = false; /** * @ngdoc method * @name $httpProvider#useApplyAsync * @description * * Configure $http service to combine processing of multiple http responses received at around * the same time via {@link ng.$rootScope.Scope#$applyAsync $rootScope.$applyAsync}. This can result in * significant performance improvement for bigger applications that make many HTTP requests * concurrently (common during application bootstrap). * * Defaults to false. If no value is specified, returns the current configured value. * * @param {boolean=} value If true, when requests are loaded, they will schedule a deferred * "apply" on the next tick, giving time for subsequent requests in a roughly ~10ms window * to load and share the same digest cycle. * * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining. * otherwise, returns the current configured value. **/ this.useApplyAsync = function(value) { if (isDefined(value)) { useApplyAsync = !!value; return this; } return useApplyAsync; }; /** * @ngdoc property * @name $httpProvider#interceptors * @description * * Array containing service factories for all synchronous or asynchronous {@link ng.$http $http} * pre-processing of request or postprocessing of responses. * * These service factories are ordered by request, i.e. they are applied in the same order as the * array, on request, but reverse order, on response. * * {@link ng.$http#interceptors Interceptors detailed info} **/ var interceptorFactories = this.interceptors = []; this.$get = ['$browser', '$httpBackend', '$$cookieReader', '$cacheFactory', '$rootScope', '$q', '$injector', '$sce', function($browser, $httpBackend, $$cookieReader, $cacheFactory, $rootScope, $q, $injector, $sce) { var defaultCache = $cacheFactory('$http'); /** * Make sure that default param serializer is exposed as a function */ defaults.paramSerializer = isString(defaults.paramSerializer) ? $injector.get(defaults.paramSerializer) : defaults.paramSerializer; /** * Interceptors stored in reverse order. Inner interceptors before outer interceptors. * The reversal is needed so that we can build up the interception chain around the * server request. */ var reversedInterceptors = []; forEach(interceptorFactories, function(interceptorFactory) { reversedInterceptors.unshift(isString(interceptorFactory) ? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory)); }); /** * @ngdoc service * @kind function * @name $http * @requires ng.$httpBackend * @requires $cacheFactory * @requires $rootScope * @requires $q * @requires $injector * * @description * The `$http` service is a core Angular service that facilitates communication with the remote * HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest) * object or via [JSONP](http://en.wikipedia.org/wiki/JSONP). * * For unit testing applications that use `$http` service, see * {@link ngMock.$httpBackend $httpBackend mock}. * * For a higher level of abstraction, please check out the {@link ngResource.$resource * $resource} service. * * The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by * the $q service. While for simple usage patterns this doesn't matter much, for advanced usage * it is important to familiarize yourself with these APIs and the guarantees they provide. * * * ## General usage * The `$http` service is a function which takes a single argument — a {@link $http#usage configuration object} — * that is used to generate an HTTP request and returns a {@link ng.$q promise}. * * ```js * // Simple GET request example: * $http({ * method: 'GET', * url: '/someUrl' * }).then(function successCallback(response) { * // this callback will be called asynchronously * // when the response is available * }, function errorCallback(response) { * // called asynchronously if an error occurs * // or server returns response with an error status. * }); * ``` * * The response object has these properties: * * - **data** – `{string|Object}` – The response body transformed with the transform * functions. * - **status** – `{number}` – HTTP status code of the response. * - **headers** – `{function([headerName])}` – Header getter function. * - **config** – `{Object}` – The configuration object that was used to generate the request. * - **statusText** – `{string}` – HTTP status text of the response. * * A response status code between 200 and 299 is considered a success status and will result in * the success callback being called. Any response status code outside of that range is * considered an error status and will result in the error callback being called. * Also, status codes less than -1 are normalized to zero. -1 usually means the request was * aborted, e.g. using a `config.timeout`. * Note that if the response is a redirect, XMLHttpRequest will transparently follow it, meaning * that the outcome (success or error) will be determined by the final response status code. * * * ## Shortcut methods * * Shortcut methods are also available. All shortcut methods require passing in the URL, and * request data must be passed in for POST/PUT requests. An optional config can be passed as the * last argument. * * ```js * $http.get('/someUrl', config).then(successCallback, errorCallback); * $http.post('/someUrl', data, config).then(successCallback, errorCallback); * ``` * * Complete list of shortcut methods: * * - {@link ng.$http#get $http.get} * - {@link ng.$http#head $http.head} * - {@link ng.$http#post $http.post} * - {@link ng.$http#put $http.put} * - {@link ng.$http#delete $http.delete} * - {@link ng.$http#jsonp $http.jsonp} * - {@link ng.$http#patch $http.patch} * * * ## Writing Unit Tests that use $http * When unit testing (using {@link ngMock ngMock}), it is necessary to call * {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending * request using trained responses. * * ``` * $httpBackend.expectGET(...); * $http.get(...); * $httpBackend.flush(); * ``` * * ## Setting HTTP Headers * * The $http service will automatically add certain HTTP headers to all requests. These defaults * can be fully configured by accessing the `$httpProvider.defaults.headers` configuration * object, which currently contains this default configuration: * * - `$httpProvider.defaults.headers.common` (headers that are common for all requests): * - Accept: application/json, text/plain, \*/\* * - `$httpProvider.defaults.headers.post`: (header defaults for POST requests) * - `Content-Type: application/json` * - `$httpProvider.defaults.headers.put` (header defaults for PUT requests) * - `Content-Type: application/json` * * To add or overwrite these defaults, simply add or remove a property from these configuration * objects. To add headers for an HTTP method other than POST or PUT, simply add a new object * with the lowercased HTTP method name as the key, e.g. * `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }`. * * The defaults can also be set at runtime via the `$http.defaults` object in the same * fashion. For example: * * ``` * module.run(function($http) { * $http.defaults.headers.common.Authorization = 'Basic YmVlcDpib29w'; * }); * ``` * * In addition, you can supply a `headers` property in the config object passed when * calling `$http(config)`, which overrides the defaults without changing them globally. * * To explicitly remove a header automatically added via $httpProvider.defaults.headers on a per request basis, * Use the `headers` property, setting the desired header to `undefined`. For example: * * ```js * var req = { * method: 'POST', * url: 'http://example.com', * headers: { * 'Content-Type': undefined * }, * data: { test: 'test' } * } * * $http(req).then(function(){...}, function(){...}); * ``` * * ## Transforming Requests and Responses * * Both requests and responses can be transformed using transformation functions: `transformRequest` * and `transformResponse`. These properties can be a single function that returns * the transformed value (`function(data, headersGetter, status)`) or an array of such transformation functions, * which allows you to `push` or `unshift` a new transformation function into the transformation chain. * *
* **Note:** Angular does not make a copy of the `data` parameter before it is passed into the `transformRequest` pipeline. * That means changes to the properties of `data` are not local to the transform function (since Javascript passes objects by reference). * For example, when calling `$http.get(url, $scope.myObject)`, modifications to the object's properties in a transformRequest * function will be reflected on the scope and in any templates where the object is data-bound. * To prevent this, transform functions should have no side-effects. * If you need to modify properties, it is recommended to make a copy of the data, or create new object to return. *
* * ### Default Transformations * * The `$httpProvider` provider and `$http` service expose `defaults.transformRequest` and * `defaults.transformResponse` properties. If a request does not provide its own transformations * then these will be applied. * * You can augment or replace the default transformations by modifying these properties by adding to or * replacing the array. * * Angular provides the following default transformations: * * Request transformations (`$httpProvider.defaults.transformRequest` and `$http.defaults.transformRequest`): * * - If the `data` property of the request configuration object contains an object, serialize it * into JSON format. * * Response transformations (`$httpProvider.defaults.transformResponse` and `$http.defaults.transformResponse`): * * - If XSRF prefix is detected, strip it (see Security Considerations section below). * - If JSON response is detected, deserialize it using a JSON parser. * * * ### Overriding the Default Transformations Per Request * * If you wish to override the request/response transformations only for a single request then provide * `transformRequest` and/or `transformResponse` properties on the configuration object passed * into `$http`. * * Note that if you provide these properties on the config object the default transformations will be * overwritten. If you wish to augment the default transformations then you must include them in your * local transformation array. * * The following code demonstrates adding a new response transformation to be run after the default response * transformations have been run. * * ```js * function appendTransform(defaults, transform) { * * // We can't guarantee that the default transformation is an array * defaults = angular.isArray(defaults) ? defaults : [defaults]; * * // Append the new transformation to the defaults * return defaults.concat(transform); * } * * $http({ * url: '...', * method: 'GET', * transformResponse: appendTransform($http.defaults.transformResponse, function(value) { * return doTransform(value); * }) * }); * ``` * * * ## Caching * * {@link ng.$http `$http`} responses are not cached by default. To enable caching, you must * set the config.cache value or the default cache value to TRUE or to a cache object (created * with {@link ng.$cacheFactory `$cacheFactory`}). If defined, the value of config.cache takes * precedence over the default cache value. * * In order to: * * cache all responses - set the default cache value to TRUE or to a cache object * * cache a specific response - set config.cache value to TRUE or to a cache object * * If caching is enabled, but neither the default cache nor config.cache are set to a cache object, * then the default `$cacheFactory("$http")` object is used. * * The default cache value can be set by updating the * {@link ng.$http#defaults `$http.defaults.cache`} property or the * {@link $httpProvider#defaults `$httpProvider.defaults.cache`} property. * * When caching is enabled, {@link ng.$http `$http`} stores the response from the server using * the relevant cache object. The next time the same request is made, the response is returned * from the cache without sending a request to the server. * * Take note that: * * * Only GET and JSONP requests are cached. * * The cache key is the request URL including search parameters; headers are not considered. * * Cached responses are returned asynchronously, in the same way as responses from the server. * * If multiple identical requests are made using the same cache, which is not yet populated, * one request will be made to the server and remaining requests will return the same response. * * A cache-control header on the response does not affect if or how responses are cached. * * * ## Interceptors * * Before you start creating interceptors, be sure to understand the * {@link ng.$q $q and deferred/promise APIs}. * * For purposes of global error handling, authentication, or any kind of synchronous or * asynchronous pre-processing of request or postprocessing of responses, it is desirable to be * able to intercept requests before they are handed to the server and * responses before they are handed over to the application code that * initiated these requests. The interceptors leverage the {@link ng.$q * promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing. * * The interceptors are service factories that are registered with the `$httpProvider` by * adding them to the `$httpProvider.interceptors` array. The factory is called and * injected with dependencies (if specified) and returns the interceptor. * * There are two kinds of interceptors (and two kinds of rejection interceptors): * * * `request`: interceptors get called with a http {@link $http#usage config} object. The function is free to * modify the `config` object or create a new one. The function needs to return the `config` * object directly, or a promise containing the `config` or a new `config` object. * * `requestError`: interceptor gets called when a previous interceptor threw an error or * resolved with a rejection. * * `response`: interceptors get called with http `response` object. The function is free to * modify the `response` object or create a new one. The function needs to return the `response` * object directly, or as a promise containing the `response` or a new `response` object. * * `responseError`: interceptor gets called when a previous interceptor threw an error or * resolved with a rejection. * * * ```js * // register the interceptor as a service * $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) { * return { * // optional method * 'request': function(config) { * // do something on success * return config; * }, * * // optional method * 'requestError': function(rejection) { * // do something on error * if (canRecover(rejection)) { * return responseOrNewPromise * } * return $q.reject(rejection); * }, * * * * // optional method * 'response': function(response) { * // do something on success * return response; * }, * * // optional method * 'responseError': function(rejection) { * // do something on error * if (canRecover(rejection)) { * return responseOrNewPromise * } * return $q.reject(rejection); * } * }; * }); * * $httpProvider.interceptors.push('myHttpInterceptor'); * * * // alternatively, register the interceptor via an anonymous factory * $httpProvider.interceptors.push(function($q, dependency1, dependency2) { * return { * 'request': function(config) { * // same as above * }, * * 'response': function(response) { * // same as above * } * }; * }); * ``` * * ## Security Considerations * * When designing web applications, consider security threats from: * * - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx) * - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) * * Both server and the client must cooperate in order to eliminate these threats. Angular comes * pre-configured with strategies that address these issues, but for this to work backend server * cooperation is required. * * ### JSON Vulnerability Protection * * A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx) * allows third party website to turn your JSON resource URL into * [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To * counter this your server can prefix all JSON requests with following string `")]}',\n"`. * Angular will automatically strip the prefix before processing it as JSON. * * For example if your server needs to return: * ```js * ['one','two'] * ``` * * which is vulnerable to attack, your server can return: * ```js * )]}', * ['one','two'] * ``` * * Angular will strip the prefix, before processing the JSON. * * * ### Cross Site Request Forgery (XSRF) Protection * * [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is an attack technique by * which the attacker can trick an authenticated user into unknowingly executing actions on your * website. Angular provides a mechanism to counter XSRF. When performing XHR requests, the * $http service reads a token from a cookie (by default, `XSRF-TOKEN`) and sets it as an HTTP * header (`X-XSRF-TOKEN`). Since only JavaScript that runs on your domain could read the * cookie, your server can be assured that the XHR came from JavaScript running on your domain. * The header will not be set for cross-domain requests. * * To take advantage of this, your server needs to set a token in a JavaScript readable session * cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the * server can verify that the cookie matches `X-XSRF-TOKEN` HTTP header, and therefore be sure * that only JavaScript running on your domain could have sent the request. The token must be * unique for each user and must be verifiable by the server (to prevent the JavaScript from * making up its own tokens). We recommend that the token is a digest of your site's * authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography)) * for added security. * * The name of the headers can be specified using the xsrfHeaderName and xsrfCookieName * properties of either $httpProvider.defaults at config-time, $http.defaults at run-time, * or the per-request config object. * * In order to prevent collisions in environments where multiple Angular apps share the * same domain or subdomain, we recommend that each application uses unique cookie name. * * @param {object} config Object describing the request to be made and how it should be * processed. The object has following properties: * * - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc) * - **url** – `{string|TrustedObject}` – Absolute or relative URL of the resource that is being requested; * or an object created by a call to `$sce.trustAsResourceUrl(url)`. * - **params** – `{Object.}` – Map of strings or objects which will be serialized * with the `paramSerializer` and appended as GET parameters. * - **data** – `{string|Object}` – Data to be sent as the request message data. * - **headers** – `{Object}` – Map of strings or functions which return strings representing * HTTP headers to send to the server. If the return value of a function is null, the * header will not be sent. Functions accept a config object as an argument. * - **eventHandlers** - `{Object}` - Event listeners to be bound to the XMLHttpRequest object. * To bind events to the XMLHttpRequest upload object, use `uploadEventHandlers`. * The handler will be called in the context of a `$apply` block. * - **uploadEventHandlers** - `{Object}` - Event listeners to be bound to the XMLHttpRequest upload * object. To bind events to the XMLHttpRequest object, use `eventHandlers`. * The handler will be called in the context of a `$apply` block. * - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token. * - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token. * - **transformRequest** – * `{function(data, headersGetter)|Array.}` – * transform function or an array of such functions. The transform function takes the http * request body and headers and returns its transformed (typically serialized) version. * See {@link ng.$http#overriding-the-default-transformations-per-request * Overriding the Default Transformations} * - **transformResponse** – * `{function(data, headersGetter, status)|Array.}` – * transform function or an array of such functions. The transform function takes the http * response body, headers and status and returns its transformed (typically deserialized) version. * See {@link ng.$http#overriding-the-default-transformations-per-request * Overriding the Default Transformations} * - **paramSerializer** - `{string|function(Object):string}` - A function used to * prepare the string representation of request parameters (specified as an object). * If specified as string, it is interpreted as function registered with the * {@link $injector $injector}, which means you can create your own serializer * by registering it as a {@link auto.$provide#service service}. * The default serializer is the {@link $httpParamSerializer $httpParamSerializer}; * alternatively, you can use the {@link $httpParamSerializerJQLike $httpParamSerializerJQLike} * - **cache** – `{boolean|Object}` – A boolean value or object created with * {@link ng.$cacheFactory `$cacheFactory`} to enable or disable caching of the HTTP response. * See {@link $http#caching $http Caching} for more information. * - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise} * that should abort the request when resolved. * - **withCredentials** - `{boolean}` - whether to set the `withCredentials` flag on the * XHR object. See [requests with credentials](https://developer.mozilla.org/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials) * for more information. * - **responseType** - `{string}` - see * [XMLHttpRequest.responseType](https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest#xmlhttprequest-responsetype). * * @returns {HttpPromise} Returns a {@link ng.$q `Promise}` that will be resolved to a response object * when the request succeeds or fails. * * * @property {Array.} pendingRequests Array of config objects for currently pending * requests. This is primarily meant to be used for debugging purposes. * * * @example 

http status code: {{status}}
http response data: {{data}}
 angular.module('httpExample', []) .config(['$sceDelegateProvider', function($sceDelegateProvider) { // We must whitelist the JSONP endpoint that we are using to show that we trust it $sceDelegateProvider.resourceUrlWhitelist([ 'self', 'https://angularjs.org/**' ]); }]) .controller('FetchController', ['$scope', '$http', '$templateCache', function($scope, $http, $templateCache) { $scope.method = 'GET'; $scope.url = 'http-hello.html'; $scope.fetch = function() { $scope.code = null; $scope.response = null; $http({method: $scope.method, url: $scope.url, cache: $templateCache}). then(function(response) { $scope.status = response.status; $scope.data = response.data; }, function(response) { $scope.data = response.data || 'Request failed'; $scope.status = response.status; }); }; $scope.updateModel = function(method, url) { $scope.method = method; $scope.url = url; }; }]); Hello, $http! var status = element(by.binding('status')); var data = element(by.binding('data')); var fetchBtn = element(by.id('fetchbtn')); var sampleGetBtn = element(by.id('samplegetbtn')); var invalidJsonpBtn = element(by.id('invalidjsonpbtn')); it('should make an xhr GET request', function() { sampleGetBtn.click(); fetchBtn.click(); expect(status.getText()).toMatch('200'); expect(data.getText()).toMatch(/Hello, \$http!/); }); // Commented out due to flakes. See https://github.com/angular/angular.js/issues/9185 // it('should make a JSONP request to angularjs.org', function() { // var sampleJsonpBtn = element(by.id('samplejsonpbtn')); // sampleJsonpBtn.click(); // fetchBtn.click(); // expect(status.getText()).toMatch('200'); // expect(data.getText()).toMatch(/Super Hero!/); // }); it('should make JSONP request to invalid URL and invoke the error handler', function() { invalidJsonpBtn.click(); fetchBtn.click(); expect(status.getText()).toMatch('0'); expect(data.getText()).toMatch('Request failed'); }); */ function $http(requestConfig) { if (!isObject(requestConfig)) { throw minErr('$http')('badreq', 'Http request configuration must be an object. Received: {0}', requestConfig); } if (!isString($sce.valueOf(requestConfig.url))) { throw minErr('$http')('badreq', 'Http request configuration url must be a string or a $sce trusted object. Received: {0}', requestConfig.url); } var config = extend({ method: 'get', transformRequest: defaults.transformRequest, transformResponse: defaults.transformResponse, paramSerializer: defaults.paramSerializer, jsonpCallbackParam: defaults.jsonpCallbackParam }, requestConfig); config.headers = mergeHeaders(requestConfig); config.method = uppercase(config.method); config.paramSerializer = isString(config.paramSerializer) ? $injector.get(config.paramSerializer) : config.paramSerializer; $browser.$$incOutstandingRequestCount(); var requestInterceptors = []; var responseInterceptors = []; var promise = $q.resolve(config); // apply interceptors forEach(reversedInterceptors, function(interceptor) { if (interceptor.request || interceptor.requestError) { requestInterceptors.unshift(interceptor.request, interceptor.requestError); } if (interceptor.response || interceptor.responseError) { responseInterceptors.push(interceptor.response, interceptor.responseError); } }); promise = chainInterceptors(promise, requestInterceptors); promise = promise.then(serverRequest); promise = chainInterceptors(promise, responseInterceptors); promise = promise.finally(completeOutstandingRequest); return promise; function chainInterceptors(promise, interceptors) { for (var i = 0, ii = interceptors.length; i < ii;) { var thenFn = interceptors[i++]; var rejectFn = interceptors[i++]; promise = promise.then(thenFn, rejectFn); } interceptors.length = 0; return promise; } function completeOutstandingRequest() { $browser.$$completeOutstandingRequest(noop); } function executeHeaderFns(headers, config) { var headerContent, processedHeaders = {}; forEach(headers, function(headerFn, header) { if (isFunction(headerFn)) { headerContent = headerFn(config); if (headerContent != null) { processedHeaders[header] = headerContent; } } else { processedHeaders[header] = headerFn; } }); return processedHeaders; } function mergeHeaders(config) { var defHeaders = defaults.headers, reqHeaders = extend({}, config.headers), defHeaderName, lowercaseDefHeaderName, reqHeaderName; defHeaders = extend({}, defHeaders.common, defHeaders[lowercase(config.method)]); // using for-in instead of forEach to avoid unnecessary iteration after header has been found defaultHeadersIteration: for (defHeaderName in defHeaders) { lowercaseDefHeaderName = lowercase(defHeaderName); for (reqHeaderName in reqHeaders) { if (lowercase(reqHeaderName) === lowercaseDefHeaderName) { continue defaultHeadersIteration; } } reqHeaders[defHeaderName] = defHeaders[defHeaderName]; } // execute if header value is a function for merged headers return executeHeaderFns(reqHeaders, shallowCopy(config)); } function serverRequest(config) { var headers = config.headers; var reqData = transformData(config.data, headersGetter(headers), undefined, config.transformRequest); // strip content-type if data is undefined if (isUndefined(reqData)) { forEach(headers, function(value, header) { if (lowercase(header) === 'content-type') { delete headers[header]; } }); } if (isUndefined(config.withCredentials) && !isUndefined(defaults.withCredentials)) { config.withCredentials = defaults.withCredentials; } // send request return sendReq(config, reqData).then(transformResponse, transformResponse); } function transformResponse(response) { // make a copy since the response must be cacheable var resp = extend({}, response); resp.data = transformData(response.data, response.headers, response.status, config.transformResponse); return (isSuccess(response.status)) ? resp : $q.reject(resp); } } $http.pendingRequests = []; /** * @ngdoc method * @name $http#get * * @description * Shortcut method to perform `GET` request. * * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested; * or an object created by a call to `$sce.trustAsResourceUrl(url)`. * @param {Object=} config Optional configuration object * @returns {HttpPromise} Future object */ /** * @ngdoc method * @name $http#delete * * @description * Shortcut method to perform `DELETE` request. * * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested; * or an object created by a call to `$sce.trustAsResourceUrl(url)`. * @param {Object=} config Optional configuration object * @returns {HttpPromise} Future object */ /** * @ngdoc method * @name $http#head * * @description * Shortcut method to perform `HEAD` request. * * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested; * or an object created by a call to `$sce.trustAsResourceUrl(url)`. * @param {Object=} config Optional configuration object * @returns {HttpPromise} Future object */ /** * @ngdoc method * @name $http#jsonp * * @description * Shortcut method to perform `JSONP` request. * * Note that, since JSONP requests are sensitive because the response is given full access to the browser, * the url must be declared, via {@link $sce} as a trusted resource URL. * You can trust a URL by adding it to the whitelist via * {@link $sceDelegateProvider#resourceUrlWhitelist `$sceDelegateProvider.resourceUrlWhitelist`} or * by explicitly trusting the URL via {@link $sce#trustAsResourceUrl `$sce.trustAsResourceUrl(url)`}. * * JSONP requests must specify a callback to be used in the response from the server. This callback * is passed as a query parameter in the request. You must specify the name of this parameter by * setting the `jsonpCallbackParam` property on the request config object. * * ``` * $http.jsonp('some/trusted/url', {jsonpCallbackParam: 'callback'}) * ``` * * You can also specify a default callback parameter name in `$http.defaults.jsonpCallbackParam`. * Initially this is set to `'callback'`. * *
* You can no longer use the `JSON_CALLBACK` string as a placeholder for specifying where the callback * parameter value should go. *
* * If you would like to customise where and how the callbacks are stored then try overriding * or decorating the {@link $jsonpCallbacks} service. * * @param {string|TrustedObject} url Absolute or relative URL of the resource that is being requested; * or an object created by a call to `$sce.trustAsResourceUrl(url)`. * @param {Object=} config Optional configuration object * @returns {HttpPromise} Future object */ createShortMethods('get', 'delete', 'head', 'jsonp'); /** * @ngdoc method * @name $http#post * * @description * Shortcut method to perform `POST` request. * * @param {string} url Relative or absolute URL specifying the destination of the request * @param {*} data Request content * @param {Object=} config Optional configuration object * @returns {HttpPromise} Future object */ /** * @ngdoc method * @name $http#put * * @description * Shortcut method to perform `PUT` request. * * @param {string} url Relative or absolute URL specifying the destination of the request * @param {*} data Request content * @param {Object=} config Optional configuration object * @returns {HttpPromise} Future object */ /** * @ngdoc method * @name $http#patch * * @description * Shortcut method to perform `PATCH` request. * * @param {string} url Relative or absolute URL specifying the destination of the request * @param {*} data Request content * @param {Object=} config Optional configuration object * @returns {HttpPromise} Future object */ createShortMethodsWithData('post', 'put', 'patch'); /** * @ngdoc property * @name $http#defaults * * @description * Runtime equivalent of the `$httpProvider.defaults` property. Allows configuration of * default headers, withCredentials as well as request and response transformations. * * See "Setting HTTP Headers" and "Transforming Requests and Responses" sections above. */ $http.defaults = defaults; return $http; function createShortMethods(names) { forEach(arguments, function(name) { $http[name] = function(url, config) { return $http(extend({}, config || {}, { method: name, url: url })); }; }); } function createShortMethodsWithData(name) { forEach(arguments, function(name) { $http[name] = function(url, data, config) { return $http(extend({}, config || {}, { method: name, url: url, data: data })); }; }); } /** * Makes the request. * * !!! ACCESSES CLOSURE VARS: * $httpBackend, defaults, $log, $rootScope, defaultCache, $http.pendingRequests */ function sendReq(config, reqData) { var deferred = $q.defer(), promise = deferred.promise, cache, cachedResp, reqHeaders = config.headers, isJsonp = lowercase(config.method) === 'jsonp', url = config.url; if (isJsonp) { // JSONP is a pretty sensitive operation where we're allowing a script to have full access to // our DOM and JS space. So we require that the URL satisfies SCE.RESOURCE_URL. url = $sce.getTrustedResourceUrl(url); } else if (!isString(url)) { // If it is not a string then the URL must be a $sce trusted object url = $sce.valueOf(url); } url = buildUrl(url, config.paramSerializer(config.params)); if (isJsonp) { // Check the url and add the JSONP callback placeholder url = sanitizeJsonpCallbackParam(url, config.jsonpCallbackParam); } $http.pendingRequests.push(config); promise.then(removePendingReq, removePendingReq); if ((config.cache || defaults.cache) && config.cache !== false && (config.method === 'GET' || config.method === 'JSONP')) { cache = isObject(config.cache) ? config.cache : isObject(defaults.cache) ? defaults.cache : defaultCache; } if (cache) { cachedResp = cache.get(url); if (isDefined(cachedResp)) { if (isPromiseLike(cachedResp)) { // cached request has already been sent, but there is no response yet cachedResp.then(resolvePromiseWithResult, resolvePromiseWithResult); } else { // serving from cache if (isArray(cachedResp)) { resolvePromise(cachedResp[1], cachedResp[0], shallowCopy(cachedResp[2]), cachedResp[3]); } else { resolvePromise(cachedResp, 200, {}, 'OK'); } } } else { // put the promise for the non-transformed response into cache as a placeholder cache.put(url, promise); } } // if we won't have the response in cache, set the xsrf headers and // send the request to the backend if (isUndefined(cachedResp)) { var xsrfValue = urlIsSameOrigin(config.url) ? $$cookieReader()[config.xsrfCookieName || defaults.xsrfCookieName] : undefined; if (xsrfValue) { reqHeaders[(config.xsrfHeaderName || defaults.xsrfHeaderName)] = xsrfValue; } $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout, config.withCredentials, config.responseType, createApplyHandlers(config.eventHandlers), createApplyHandlers(config.uploadEventHandlers)); } return promise; function createApplyHandlers(eventHandlers) { if (eventHandlers) { var applyHandlers = {}; forEach(eventHandlers, function(eventHandler, key) { applyHandlers[key] = function(event) { if (useApplyAsync) { $rootScope.$applyAsync(callEventHandler); } else if ($rootScope.$$phase) { callEventHandler(); } else { $rootScope.$apply(callEventHandler); } function callEventHandler() { eventHandler(event); } }; }); return applyHandlers; } } /** * Callback registered to $httpBackend(): * - caches the response if desired * - resolves the raw $http promise * - calls $apply */ function done(status, response, headersString, statusText) { if (cache) { if (isSuccess(status)) { cache.put(url, [status, response, parseHeaders(headersString), statusText]); } else { // remove promise from the cache cache.remove(url); } } function resolveHttpPromise() { resolvePromise(response, status, headersString, statusText); } if (useApplyAsync) { $rootScope.$applyAsync(resolveHttpPromise); } else { resolveHttpPromise(); if (!$rootScope.$$phase) $rootScope.$apply(); } } /** * Resolves the raw $http promise. */ function resolvePromise(response, status, headers, statusText) { //status: HTTP response status code, 0, -1 (aborted by timeout / promise) status = status >= -1 ? status : 0; (isSuccess(status) ? deferred.resolve : deferred.reject)({ data: response, status: status, headers: headersGetter(headers), config: config, statusText: statusText }); } function resolvePromiseWithResult(result) { resolvePromise(result.data, result.status, shallowCopy(result.headers()), result.statusText); } function removePendingReq() { var idx = $http.pendingRequests.indexOf(config); if (idx !== -1) $http.pendingRequests.splice(idx, 1); } } function buildUrl(url, serializedParams) { if (serializedParams.length > 0) { url += ((url.indexOf('?') === -1) ? '?' : '&') + serializedParams; } return url; } function sanitizeJsonpCallbackParam(url, key) { if (/[&?][^=]+=JSON_CALLBACK/.test(url)) { // Throw if the url already contains a reference to JSON_CALLBACK throw $httpMinErr('badjsonp', 'Illegal use of JSON_CALLBACK in url, "{0}"', url); } var callbackParamRegex = new RegExp('[&?]' + key + '='); if (callbackParamRegex.test(url)) { // Throw if the callback param was already provided throw $httpMinErr('badjsonp', 'Illegal use of callback param, "{0}", in url, "{1}"', key, url); } // Add in the JSON_CALLBACK callback param value url += ((url.indexOf('?') === -1) ? '?' : '&') + key + '=JSON_CALLBACK'; return url; } }]; } /** * @ngdoc service * @name $xhrFactory * @this * * @description * Factory function used to create XMLHttpRequest objects. * * Replace or decorate this service to create your own custom XMLHttpRequest objects. * * ``` * angular.module('myApp', []) * .factory('$xhrFactory', function() { * return function createXhr(method, url) { * return new window.XMLHttpRequest({mozSystem: true}); * }; * }); * ``` * * @param {string} method HTTP method of the request (GET, POST, PUT, ..) * @param {string} url URL of the request. */ function $xhrFactoryProvider() { this.$get = function() { return function createXhr() { return new window.XMLHttpRequest(); }; }; } /** * @ngdoc service * @name $httpBackend * @requires $jsonpCallbacks * @requires $document * @requires $xhrFactory * @this * * @description * HTTP backend used by the {@link ng.$http service} that delegates to * XMLHttpRequest object or JSONP and deals with browser incompatibilities. * * You should never need to use this service directly, instead use the higher-level abstractions: * {@link ng.$http $http} or {@link ngResource.$resource $resource}. * * During testing this implementation is swapped with {@link ngMock.$httpBackend mock * $httpBackend} which can be trained with responses. */ function $HttpBackendProvider() { this.$get = ['$browser', '$jsonpCallbacks', '$document', '$xhrFactory', function($browser, $jsonpCallbacks, $document, $xhrFactory) { return createHttpBackend($browser, $xhrFactory, $browser.defer, $jsonpCallbacks, $document[0]); }]; } function createHttpBackend($browser, createXhr, $browserDefer, callbacks, rawDocument) { // TODO(vojta): fix the signature return function(method, url, post, callback, headers, timeout, withCredentials, responseType, eventHandlers, uploadEventHandlers) { url = url || $browser.url(); if (lowercase(method) === 'jsonp') { var callbackPath = callbacks.createCallback(url); var jsonpDone = jsonpReq(url, callbackPath, function(status, text) { // jsonpReq only ever sets status to 200 (OK), 404 (ERROR) or -1 (WAITING) var response = (status === 200) && callbacks.getResponse(callbackPath); completeRequest(callback, status, response, '', text); callbacks.removeCallback(callbackPath); }); } else { var xhr = createXhr(method, url); xhr.open(method, url, true); forEach(headers, function(value, key) { if (isDefined(value)) { xhr.setRequestHeader(key, value); } }); xhr.onload = function requestLoaded() { var statusText = xhr.statusText || ''; // responseText is the old-school way of retrieving response (supported by IE9) // response/responseType properties were introduced in XHR Level2 spec (supported by IE10) var response = ('response' in xhr) ? xhr.response : xhr.responseText; // normalize IE9 bug (http://bugs.jquery.com/ticket/1450) var status = xhr.status === 1223 ? 204 : xhr.status; // fix status code when it is 0 (0 status is undocumented). // Occurs when accessing file resources or on Android 4.1 stock browser // while retrieving files from application cache. if (status === 0) { status = response ? 200 : urlResolve(url).protocol === 'file' ? 404 : 0; } completeRequest(callback, status, response, xhr.getAllResponseHeaders(), statusText); }; var requestError = function() { // The response is always empty // See https://xhr.spec.whatwg.org/#request-error-steps and https://fetch.spec.whatwg.org/#concept-network-error completeRequest(callback, -1, null, null, ''); }; xhr.onerror = requestError; xhr.onabort = requestError; xhr.ontimeout = requestError; forEach(eventHandlers, function(value, key) { xhr.addEventListener(key, value); }); forEach(uploadEventHandlers, function(value, key) { xhr.upload.addEventListener(key, value); }); if (withCredentials) { xhr.withCredentials = true; } if (responseType) { try { xhr.responseType = responseType; } catch (e) { // WebKit added support for the json responseType value on 09/03/2013 // https://bugs.webkit.org/show_bug.cgi?id=73648. Versions of Safari prior to 7 are // known to throw when setting the value "json" as the response type. Other older // browsers implementing the responseType // // The json response type can be ignored if not supported, because JSON payloads are // parsed on the client-side regardless. if (responseType !== 'json') { throw e; } } } xhr.send(isUndefined(post) ? null : post); } if (timeout > 0) { var timeoutId = $browserDefer(timeoutRequest, timeout); } else if (isPromiseLike(timeout)) { timeout.then(timeoutRequest); } function timeoutRequest() { if (jsonpDone) { jsonpDone(); } if (xhr) { xhr.abort(); } } function completeRequest(callback, status, response, headersString, statusText) { // cancel timeout and subsequent timeout promise resolution if (isDefined(timeoutId)) { $browserDefer.cancel(timeoutId); } jsonpDone = xhr = null; callback(status, response, headersString, statusText); } }; function jsonpReq(url, callbackPath, done) { url = url.replace('JSON_CALLBACK', callbackPath); // we can't use jQuery/jqLite here because jQuery does crazy stuff with script elements, e.g.: // - fetches local scripts via XHR and evals them // - adds and immediately removes script elements from the document var script = rawDocument.createElement('script'), callback = null; script.type = 'text/javascript'; script.src = url; script.async = true; callback = function(event) { script.removeEventListener('load', callback); script.removeEventListener('error', callback); rawDocument.body.removeChild(script); script = null; var status = -1; var text = 'unknown'; if (event) { if (event.type === 'load' && !callbacks.wasCalled(callbackPath)) { event = { type: 'error' }; } text = event.type; status = event.type === 'error' ? 404 : 200; } if (done) { done(status, text); } }; script.addEventListener('load', callback); script.addEventListener('error', callback); rawDocument.body.appendChild(script); return callback; } } var $interpolateMinErr = angular.$interpolateMinErr = minErr('$interpolate'); $interpolateMinErr.throwNoconcat = function(text) { throw $interpolateMinErr('noconcat', 'Error while interpolating: {0}\nStrict Contextual Escaping disallows ' + 'interpolations that concatenate multiple expressions when a trusted value is ' + 'required. See http://docs.angularjs.org/api/ng.$sce', text); }; $interpolateMinErr.interr = function(text, err) { return $interpolateMinErr('interr', 'Can\'t interpolate: {0}\n{1}', text, err.toString()); }; /** * @ngdoc provider * @name $interpolateProvider * @this * * @description * * Used for configuring the interpolation markup. Defaults to `{{` and `}}`. * *
* This feature is sometimes used to mix different markup languages, e.g. to wrap an Angular * template within a Python Jinja template (or any other template language). Mixing templating * languages is **very dangerous**. The embedding template language will not safely escape Angular * expressions, so any user-controlled values in the template will cause Cross Site Scripting (XSS) * security bugs! *
* * @example
//demo.label//
it('should interpolate binding with custom symbols', function() { expect(element(by.binding('demo.label')).getText()).toBe('This binding is brought you by // interpolation symbols.'); }); */ function $InterpolateProvider() { var startSymbol = '{{'; var endSymbol = '}}'; /** * @ngdoc method * @name $interpolateProvider#startSymbol * @description * Symbol to denote start of expression in the interpolated string. Defaults to `{{`. * * @param {string=} value new value to set the starting symbol to. * @returns {string|self} Returns the symbol when used as getter and self if used as setter. */ this.startSymbol = function(value) { if (value) { startSymbol = value; return this; } else { return startSymbol; } }; /** * @ngdoc method * @name $interpolateProvider#endSymbol * @description * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`. * * @param {string=} value new value to set the ending symbol to. * @returns {string|self} Returns the symbol when used as getter and self if used as setter. */ this.endSymbol = function(value) { if (value) { endSymbol = value; return this; } else { return endSymbol; } }; this.$get = ['$parse', '$exceptionHandler', '$sce', function($parse, $exceptionHandler, $sce) { var startSymbolLength = startSymbol.length, endSymbolLength = endSymbol.length, escapedStartRegexp = new RegExp(startSymbol.replace(/./g, escape), 'g'), escapedEndRegexp = new RegExp(endSymbol.replace(/./g, escape), 'g'); function escape(ch) { return '\\\\\\' + ch; } function unescapeText(text) { return text.replace(escapedStartRegexp, startSymbol). replace(escapedEndRegexp, endSymbol); } // TODO: this is the same as the constantWatchDelegate in parse.js function constantWatchDelegate(scope, listener, objectEquality, constantInterp) { var unwatch = scope.$watch(function constantInterpolateWatch(scope) { unwatch(); return constantInterp(scope); }, listener, objectEquality); return unwatch; } /** * @ngdoc service * @name $interpolate * @kind function * * @requires $parse * @requires $sce * * @description * * Compiles a string with markup into an interpolation function. This service is used by the * HTML {@link ng.$compile $compile} service for data binding. See * {@link ng.$interpolateProvider $interpolateProvider} for configuring the * interpolation markup. * * * ```js * var $interpolate = ...; // injected * var exp = $interpolate('Hello {{name | uppercase}}!'); * expect(exp({name:'Angular'})).toEqual('Hello ANGULAR!'); * ``` * * `$interpolate` takes an optional fourth argument, `allOrNothing`. If `allOrNothing` is * `true`, the interpolation function will return `undefined` unless all embedded expressions * evaluate to a value other than `undefined`. * * ```js * var $interpolate = ...; // injected * var context = {greeting: 'Hello', name: undefined }; * * // default "forgiving" mode * var exp = $interpolate('{{greeting}} {{name}}!'); * expect(exp(context)).toEqual('Hello !'); * * // "allOrNothing" mode * exp = $interpolate('{{greeting}} {{name}}!', false, null, true); * expect(exp(context)).toBeUndefined(); * context.name = 'Angular'; * expect(exp(context)).toEqual('Hello Angular!'); * ``` * * `allOrNothing` is useful for interpolating URLs. `ngSrc` and `ngSrcset` use this behavior. * * #### Escaped Interpolation * $interpolate provides a mechanism for escaping interpolation markers. Start and end markers * can be escaped by preceding each of their characters with a REVERSE SOLIDUS U+005C (backslash). * It will be rendered as a regular start/end marker, and will not be interpreted as an expression * or binding. * * This enables web-servers to prevent script injection attacks and defacing attacks, to some * degree, while also enabling code examples to work without relying on the * {@link ng.directive:ngNonBindable ngNonBindable} directive. * * **For security purposes, it is strongly encouraged that web servers escape user-supplied data, * replacing angle brackets (<, >) with &lt; and &gt; respectively, and replacing all * interpolation start/end markers with their escaped counterparts.** * * Escaped interpolation markers are only replaced with the actual interpolation markers in rendered * output when the $interpolate service processes the text. So, for HTML elements interpolated * by {@link ng.$compile $compile}, or otherwise interpolated with the `mustHaveExpression` parameter * set to `true`, the interpolated text must contain an unescaped interpolation expression. As such, * this is typically useful only when user-data is used in rendering a template from the server, or * when otherwise untrusted data is used by a directive. * * * *
*

{{apptitle}}: \{\{ username = "defaced value"; \}\} *

*

{{username}} attempts to inject code which will deface the * application, but fails to accomplish their task, because the server has correctly * escaped the interpolation start/end markers with REVERSE SOLIDUS U+005C (backslash) * characters.

*

Instead, the result of the attempted script injection is visible, and can be removed * from the database by an administrator.

*
* * * * @knownIssue * It is currently not possible for an interpolated expression to contain the interpolation end * symbol. For example, `{{ '}}' }}` will be incorrectly interpreted as `{{ ' }}` + `' }}`, i.e. * an interpolated expression consisting of a single-quote (`'`) and the `' }}` string. * * @knownIssue * All directives and components must use the standard `{{` `}}` interpolation symbols * in their templates. If you change the application interpolation symbols the {@link $compile} * service will attempt to denormalize the standard symbols to the custom symbols. * The denormalization process is not clever enough to know not to replace instances of the standard * symbols where they would not normally be treated as interpolation symbols. For example in the following * code snippet the closing braces of the literal object will get incorrectly denormalized: * * ``` *
* ``` * * See https://github.com/angular/angular.js/pull/14610#issuecomment-219401099 for more information. * * @param {string} text The text with markup to interpolate. * @param {boolean=} mustHaveExpression if set to true then the interpolation string must have * embedded expression in order to return an interpolation function. Strings with no * embedded expression will return null for the interpolation function. * @param {string=} trustedContext when provided, the returned function passes the interpolated * result through {@link ng.$sce#getTrusted $sce.getTrusted(interpolatedResult, * trustedContext)} before returning it. Refer to the {@link ng.$sce $sce} service that * provides Strict Contextual Escaping for details. * @param {boolean=} allOrNothing if `true`, then the returned function returns undefined * unless all embedded expressions evaluate to a value other than `undefined`. * @returns {function(context)} an interpolation function which is used to compute the * interpolated string. The function has these parameters: * * - `context`: evaluation context for all expressions embedded in the interpolated text */ function $interpolate(text, mustHaveExpression, trustedContext, allOrNothing) { // Provide a quick exit and simplified result function for text with no interpolation if (!text.length || text.indexOf(startSymbol) === -1) { var constantInterp; if (!mustHaveExpression) { var unescapedText = unescapeText(text); constantInterp = valueFn(unescapedText); constantInterp.exp = text; constantInterp.expressions = []; constantInterp.$$watchDelegate = constantWatchDelegate; } return constantInterp; } allOrNothing = !!allOrNothing; var startIndex, endIndex, index = 0, expressions = [], parseFns = [], textLength = text.length, exp, concat = [], expressionPositions = []; while (index < textLength) { if (((startIndex = text.indexOf(startSymbol, index)) !== -1) && ((endIndex = text.indexOf(endSymbol, startIndex + startSymbolLength)) !== -1)) { if (index !== startIndex) { concat.push(unescapeText(text.substring(index, startIndex))); } exp = text.substring(startIndex + startSymbolLength, endIndex); expressions.push(exp); parseFns.push($parse(exp, parseStringifyInterceptor)); index = endIndex + endSymbolLength; expressionPositions.push(concat.length); concat.push(''); } else { // we did not find an interpolation, so we have to add the remainder to the separators array if (index !== textLength) { concat.push(unescapeText(text.substring(index))); } break; } } // Concatenating expressions makes it hard to reason about whether some combination of // concatenated values are unsafe to use and could easily lead to XSS. By requiring that a // single expression be used for iframe[src], object[src], etc., we ensure that the value // that's used is assigned or constructed by some JS code somewhere that is more testable or // make it obvious that you bound the value to some user controlled value. This helps reduce // the load when auditing for XSS issues. if (trustedContext && concat.length > 1) { $interpolateMinErr.throwNoconcat(text); } if (!mustHaveExpression || expressions.length) { var compute = function(values) { for (var i = 0, ii = expressions.length; i < ii; i++) { if (allOrNothing && isUndefined(values[i])) return; concat[expressionPositions[i]] = values[i]; } return concat.join(''); }; var getValue = function(value) { return trustedContext ? $sce.getTrusted(trustedContext, value) : $sce.valueOf(value); }; return extend(function interpolationFn(context) { var i = 0; var ii = expressions.length; var values = new Array(ii); try { for (; i < ii; i++) { values[i] = parseFns[i](context); } return compute(values); } catch (err) { $exceptionHandler($interpolateMinErr.interr(text, err)); } }, { // all of these properties are undocumented for now exp: text, //just for compatibility with regular watchers created via $watch expressions: expressions, $$watchDelegate: function(scope, listener) { var lastValue; return scope.$watchGroup(parseFns, /** @this */ function interpolateFnWatcher(values, oldValues) { var currValue = compute(values); if (isFunction(listener)) { listener.call(this, currValue, values !== oldValues ? lastValue : currValue, scope); } lastValue = currValue; }); } }); } function parseStringifyInterceptor(value) { try { value = getValue(value); return allOrNothing && !isDefined(value) ? value : stringify(value); } catch (err) { $exceptionHandler($interpolateMinErr.interr(text, err)); } } } /** * @ngdoc method * @name $interpolate#startSymbol * @description * Symbol to denote the start of expression in the interpolated string. Defaults to `{{`. * * Use {@link ng.$interpolateProvider#startSymbol `$interpolateProvider.startSymbol`} to change * the symbol. * * @returns {string} start symbol. */ $interpolate.startSymbol = function() { return startSymbol; }; /** * @ngdoc method * @name $interpolate#endSymbol * @description * Symbol to denote the end of expression in the interpolated string. Defaults to `}}`. * * Use {@link ng.$interpolateProvider#endSymbol `$interpolateProvider.endSymbol`} to change * the symbol. * * @returns {string} end symbol. */ $interpolate.endSymbol = function() { return endSymbol; }; return $interpolate; }]; } /** @this */ function $IntervalProvider() { this.$get = ['$rootScope', '$window', '$q', '$$q', '$browser', function($rootScope, $window, $q, $$q, $browser) { var intervals = {}; /** * @ngdoc service * @name $interval * * @description * Angular's wrapper for `window.setInterval`. The `fn` function is executed every `delay` * milliseconds. * * The return value of registering an interval function is a promise. This promise will be * notified upon each tick of the interval, and will be resolved after `count` iterations, or * run indefinitely if `count` is not defined. The value of the notification will be the * number of iterations that have run. * To cancel an interval, call `$interval.cancel(promise)`. * * In tests you can use {@link ngMock.$interval#flush `$interval.flush(millis)`} to * move forward by `millis` milliseconds and trigger any functions scheduled to run in that * time. * *
* **Note**: Intervals created by this service must be explicitly destroyed when you are finished * with them. In particular they are not automatically destroyed when a controller's scope or a * directive's element are destroyed. * You should take this into consideration and make sure to always cancel the interval at the * appropriate moment. See the example below for more details on how and when to do this. *
* * @param {function()} fn A function that should be called repeatedly. If no additional arguments * are passed (see below), the function is called with the current iteration count. * @param {number} delay Number of milliseconds between each function call. * @param {number=} [count=0] Number of times to repeat. If not set, or 0, will repeat * indefinitely. * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise * will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block. * @param {...*=} Pass additional parameters to the executed function. * @returns {promise} A promise which will be notified on each iteration. * * @example * * * * *
*
*
* Current time is: *
* Blood 1 : {{blood_1}} * Blood 2 : {{blood_2}} * * * *
*
* * * */ function interval(fn, delay, count, invokeApply) { var hasParams = arguments.length > 4, args = hasParams ? sliceArgs(arguments, 4) : [], setInterval = $window.setInterval, clearInterval = $window.clearInterval, iteration = 0, skipApply = (isDefined(invokeApply) && !invokeApply), deferred = (skipApply ? $$q : $q).defer(), promise = deferred.promise; count = isDefined(count) ? count : 0; promise.$$intervalId = setInterval(function tick() { if (skipApply) { $browser.defer(callback); } else { $rootScope.$evalAsync(callback); } deferred.notify(iteration++); if (count > 0 && iteration >= count) { deferred.resolve(iteration); clearInterval(promise.$$intervalId); delete intervals[promise.$$intervalId]; } if (!skipApply) $rootScope.$apply(); }, delay); intervals[promise.$$intervalId] = deferred; return promise; function callback() { if (!hasParams) { fn(iteration); } else { fn.apply(null, args); } } } /** * @ngdoc method * @name $interval#cancel * * @description * Cancels a task associated with the `promise`. * * @param {Promise=} promise returned by the `$interval` function. * @returns {boolean} Returns `true` if the task was successfully canceled. */ interval.cancel = function(promise) { if (promise && promise.$$intervalId in intervals) { // Interval cancels should not report as unhandled promise. intervals[promise.$$intervalId].promise.catch(noop); intervals[promise.$$intervalId].reject('canceled'); $window.clearInterval(promise.$$intervalId); delete intervals[promise.$$intervalId]; return true; } return false; }; return interval; }]; } /** * @ngdoc service * @name $jsonpCallbacks * @requires $window * @description * This service handles the lifecycle of callbacks to handle JSONP requests. * Override this service if you wish to customise where the callbacks are stored and * how they vary compared to the requested url. */ var $jsonpCallbacksProvider = /** @this */ function() { this.$get = ['$window', function($window) { var callbacks = $window.angular.callbacks; var callbackMap = {}; function createCallback(callbackId) { var callback = function(data) { callback.data = data; callback.called = true; }; callback.id = callbackId; return callback; } return { /** * @ngdoc method * @name $jsonpCallbacks#createCallback * @param {string} url the url of the JSONP request * @returns {string} the callback path to send to the server as part of the JSONP request * @description * {@link $httpBackend} calls this method to create a callback and get hold of the path to the callback * to pass to the server, which will be used to call the callback with its payload in the JSONP response. */ createCallback: function(url) { var callbackId = '_' + (callbacks.$$counter++).toString(36); var callbackPath = 'angular.callbacks.' + callbackId; var callback = createCallback(callbackId); callbackMap[callbackPath] = callbacks[callbackId] = callback; return callbackPath; }, /** * @ngdoc method * @name $jsonpCallbacks#wasCalled * @param {string} callbackPath the path to the callback that was sent in the JSONP request * @returns {boolean} whether the callback has been called, as a result of the JSONP response * @description * {@link $httpBackend} calls this method to find out whether the JSONP response actually called the * callback that was passed in the request. */ wasCalled: function(callbackPath) { return callbackMap[callbackPath].called; }, /** * @ngdoc method * @name $jsonpCallbacks#getResponse * @param {string} callbackPath the path to the callback that was sent in the JSONP request * @returns {*} the data received from the response via the registered callback * @description * {@link $httpBackend} calls this method to get hold of the data that was provided to the callback * in the JSONP response. */ getResponse: function(callbackPath) { return callbackMap[callbackPath].data; }, /** * @ngdoc method * @name $jsonpCallbacks#removeCallback * @param {string} callbackPath the path to the callback that was sent in the JSONP request * @description * {@link $httpBackend} calls this method to remove the callback after the JSONP request has * completed or timed-out. */ removeCallback: function(callbackPath) { var callback = callbackMap[callbackPath]; delete callbacks[callback.id]; delete callbackMap[callbackPath]; } }; }]; }; /** * @ngdoc service * @name $locale * * @description * $locale service provides localization rules for various Angular components. As of right now the * only public api is: * * * `id` – `{string}` – locale id formatted as `languageId-countryId` (e.g. `en-us`) */ var PATH_MATCH = /^([^?#]*)(\?([^#]*))?(#(.*))?$/, DEFAULT_PORTS = {'http': 80, 'https': 443, 'ftp': 21}; var $locationMinErr = minErr('$location'); /** * Encode path using encodeUriSegment, ignoring forward slashes * * @param {string} path Path to encode * @returns {string} */ function encodePath(path) { var segments = path.split('/'), i = segments.length; while (i--) { segments[i] = encodeUriSegment(segments[i]); } return segments.join('/'); } function parseAbsoluteUrl(absoluteUrl, locationObj) { var parsedUrl = urlResolve(absoluteUrl); locationObj.$$protocol = parsedUrl.protocol; locationObj.$$host = parsedUrl.hostname; locationObj.$$port = toInt(parsedUrl.port) || DEFAULT_PORTS[parsedUrl.protocol] || null; } var DOUBLE_SLASH_REGEX = /^\s*[\\/]{2,}/; function parseAppUrl(url, locationObj) { if (DOUBLE_SLASH_REGEX.test(url)) { throw $locationMinErr('badpath', 'Invalid url "{0}".', url); } var prefixed = (url.charAt(0) !== '/'); if (prefixed) { url = '/' + url; } var match = urlResolve(url); locationObj.$$path = decodeURIComponent(prefixed && match.pathname.charAt(0) === '/' ? match.pathname.substring(1) : match.pathname); locationObj.$$search = parseKeyValue(match.search); locationObj.$$hash = decodeURIComponent(match.hash); // make sure path starts with '/'; if (locationObj.$$path && locationObj.$$path.charAt(0) !== '/') { locationObj.$$path = '/' + locationObj.$$path; } } function startsWith(str, search) { return str.slice(0, search.length) === search; } /** * * @param {string} base * @param {string} url * @returns {string} returns text from `url` after `base` or `undefined` if it does not begin with * the expected string. */ function stripBaseUrl(base, url) { if (startsWith(url, base)) { return url.substr(base.length); } } function stripHash(url) { var index = url.indexOf('#'); return index === -1 ? url : url.substr(0, index); } function trimEmptyHash(url) { return url.replace(/(#.+)|#$/, '$1'); } function stripFile(url) { return url.substr(0, stripHash(url).lastIndexOf('/') + 1); } /* return the server only (scheme://host:port) */ function serverBase(url) { return url.substring(0, url.indexOf('/', url.indexOf('//') + 2)); } /** * LocationHtml5Url represents a URL * This object is exposed as $location service when HTML5 mode is enabled and supported * * @constructor * @param {string} appBase application base URL * @param {string} appBaseNoFile application base URL stripped of any filename * @param {string} basePrefix URL path prefix */ function LocationHtml5Url(appBase, appBaseNoFile, basePrefix) { this.$$html5 = true; basePrefix = basePrefix || ''; parseAbsoluteUrl(appBase, this); /** * Parse given HTML5 (regular) URL string into properties * @param {string} url HTML5 URL * @private */ this.$$parse = function(url) { var pathUrl = stripBaseUrl(appBaseNoFile, url); if (!isString(pathUrl)) { throw $locationMinErr('ipthprfx', 'Invalid url "{0}", missing path prefix "{1}".', url, appBaseNoFile); } parseAppUrl(pathUrl, this); if (!this.$$path) { this.$$path = '/'; } this.$$compose(); }; /** * Compose url and update `absUrl` property * @private */ this.$$compose = function() { var search = toKeyValue(this.$$search), hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : ''; this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash; this.$$absUrl = appBaseNoFile + this.$$url.substr(1); // first char is always '/' }; this.$$parseLinkUrl = function(url, relHref) { if (relHref && relHref[0] === '#') { // special case for links to hash fragments: // keep the old url and only replace the hash fragment this.hash(relHref.slice(1)); return true; } var appUrl, prevAppUrl; var rewrittenUrl; if (isDefined(appUrl = stripBaseUrl(appBase, url))) { prevAppUrl = appUrl; if (basePrefix && isDefined(appUrl = stripBaseUrl(basePrefix, appUrl))) { rewrittenUrl = appBaseNoFile + (stripBaseUrl('/', appUrl) || appUrl); } else { rewrittenUrl = appBase + prevAppUrl; } } else if (isDefined(appUrl = stripBaseUrl(appBaseNoFile, url))) { rewrittenUrl = appBaseNoFile + appUrl; } else if (appBaseNoFile === url + '/') { rewrittenUrl = appBaseNoFile; } if (rewrittenUrl) { this.$$parse(rewrittenUrl); } return !!rewrittenUrl; }; } /** * LocationHashbangUrl represents URL * This object is exposed as $location service when developer doesn't opt into html5 mode. * It also serves as the base class for html5 mode fallback on legacy browsers. * * @constructor * @param {string} appBase application base URL * @param {string} appBaseNoFile application base URL stripped of any filename * @param {string} hashPrefix hashbang prefix */ function LocationHashbangUrl(appBase, appBaseNoFile, hashPrefix) { parseAbsoluteUrl(appBase, this); /** * Parse given hashbang URL into properties * @param {string} url Hashbang URL * @private */ this.$$parse = function(url) { var withoutBaseUrl = stripBaseUrl(appBase, url) || stripBaseUrl(appBaseNoFile, url); var withoutHashUrl; if (!isUndefined(withoutBaseUrl) && withoutBaseUrl.charAt(0) === '#') { // The rest of the URL starts with a hash so we have // got either a hashbang path or a plain hash fragment withoutHashUrl = stripBaseUrl(hashPrefix, withoutBaseUrl); if (isUndefined(withoutHashUrl)) { // There was no hashbang prefix so we just have a hash fragment withoutHashUrl = withoutBaseUrl; } } else { // There was no hashbang path nor hash fragment: // If we are in HTML5 mode we use what is left as the path; // Otherwise we ignore what is left if (this.$$html5) { withoutHashUrl = withoutBaseUrl; } else { withoutHashUrl = ''; if (isUndefined(withoutBaseUrl)) { appBase = url; this.replace(); } } } parseAppUrl(withoutHashUrl, this); this.$$path = removeWindowsDriveName(this.$$path, withoutHashUrl, appBase); this.$$compose(); /* * In Windows, on an anchor node on documents loaded from * the filesystem, the browser will return a pathname * prefixed with the drive name ('/C:/path') when a * pathname without a drive is set: * * a.setAttribute('href', '/foo') * * a.pathname === '/C:/foo' //true * * Inside of Angular, we're always using pathnames that * do not include drive names for routing. */ function removeWindowsDriveName(path, url, base) { /* Matches paths for file protocol on windows, such as /C:/foo/bar, and captures only /foo/bar. */ var windowsFilePathExp = /^\/[A-Z]:(\/.*)/; var firstPathSegmentMatch; //Get the relative path from the input URL. if (startsWith(url, base)) { url = url.replace(base, ''); } // The input URL intentionally contains a first path segment that ends with a colon. if (windowsFilePathExp.exec(url)) { return path; } firstPathSegmentMatch = windowsFilePathExp.exec(path); return firstPathSegmentMatch ? firstPathSegmentMatch[1] : path; } }; /** * Compose hashbang URL and update `absUrl` property * @private */ this.$$compose = function() { var search = toKeyValue(this.$$search), hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : ''; this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash; this.$$absUrl = appBase + (this.$$url ? hashPrefix + this.$$url : ''); }; this.$$parseLinkUrl = function(url, relHref) { if (stripHash(appBase) === stripHash(url)) { this.$$parse(url); return true; } return false; }; } /** * LocationHashbangUrl represents URL * This object is exposed as $location service when html5 history api is enabled but the browser * does not support it. * * @constructor * @param {string} appBase application base URL * @param {string} appBaseNoFile application base URL stripped of any filename * @param {string} hashPrefix hashbang prefix */ function LocationHashbangInHtml5Url(appBase, appBaseNoFile, hashPrefix) { this.$$html5 = true; LocationHashbangUrl.apply(this, arguments); this.$$parseLinkUrl = function(url, relHref) { if (relHref && relHref[0] === '#') { // special case for links to hash fragments: // keep the old url and only replace the hash fragment this.hash(relHref.slice(1)); return true; } var rewrittenUrl; var appUrl; if (appBase === stripHash(url)) { rewrittenUrl = url; } else if ((appUrl = stripBaseUrl(appBaseNoFile, url))) { rewrittenUrl = appBase + hashPrefix + appUrl; } else if (appBaseNoFile === url + '/') { rewrittenUrl = appBaseNoFile; } if (rewrittenUrl) { this.$$parse(rewrittenUrl); } return !!rewrittenUrl; }; this.$$compose = function() { var search = toKeyValue(this.$$search), hash = this.$$hash ? '#' + encodeUriSegment(this.$$hash) : ''; this.$$url = encodePath(this.$$path) + (search ? '?' + search : '') + hash; // include hashPrefix in $$absUrl when $$url is empty so IE9 does not reload page because of removal of '#' this.$$absUrl = appBase + hashPrefix + this.$$url; }; } var locationPrototype = { /** * Ensure absolute URL is initialized. * @private */ $$absUrl:'', /** * Are we in html5 mode? * @private */ $$html5: false, /** * Has any change been replacing? * @private */ $$replace: false, /** * @ngdoc method * @name $location#absUrl * * @description * This method is getter only. * * Return full URL representation with all segments encoded according to rules specified in * [RFC 3986](http://www.ietf.org/rfc/rfc3986.txt). * * * ```js * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo * var absUrl = $location.absUrl(); * // => "http://example.com/#/some/path?foo=bar&baz=xoxo" * ``` * * @return {string} full URL */ absUrl: locationGetter('$$absUrl'), /** * @ngdoc method * @name $location#url * * @description * This method is getter / setter. * * Return URL (e.g. `/path?a=b#hash`) when called without any parameter. * * Change path, search and hash, when called with parameter and return `$location`. * * * ```js * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo * var url = $location.url(); * // => "/some/path?foo=bar&baz=xoxo" * ``` * * @param {string=} url New URL without base prefix (e.g. `/path?a=b#hash`) * @return {string} url */ url: function(url) { if (isUndefined(url)) { return this.$$url; } var match = PATH_MATCH.exec(url); if (match[1] || url === '') this.path(decodeURIComponent(match[1])); if (match[2] || match[1] || url === '') this.search(match[3] || ''); this.hash(match[5] || ''); return this; }, /** * @ngdoc method * @name $location#protocol * * @description * This method is getter only. * * Return protocol of current URL. * * * ```js * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo * var protocol = $location.protocol(); * // => "http" * ``` * * @return {string} protocol of current URL */ protocol: locationGetter('$$protocol'), /** * @ngdoc method * @name $location#host * * @description * This method is getter only. * * Return host of current URL. * * Note: compared to the non-angular version `location.host` which returns `hostname:port`, this returns the `hostname` portion only. * * * ```js * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo * var host = $location.host(); * // => "example.com" * * // given URL http://user:password@example.com:8080/#/some/path?foo=bar&baz=xoxo * host = $location.host(); * // => "example.com" * host = location.host; * // => "example.com:8080" * ``` * * @return {string} host of current URL. */ host: locationGetter('$$host'), /** * @ngdoc method * @name $location#port * * @description * This method is getter only. * * Return port of current URL. * * * ```js * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo * var port = $location.port(); * // => 80 * ``` * * @return {Number} port */ port: locationGetter('$$port'), /** * @ngdoc method * @name $location#path * * @description * This method is getter / setter. * * Return path of current URL when called without any parameter. * * Change path when called with parameter and return `$location`. * * Note: Path should always begin with forward slash (/), this method will add the forward slash * if it is missing. * * * ```js * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo * var path = $location.path(); * // => "/some/path" * ``` * * @param {(string|number)=} path New path * @return {(string|object)} path if called with no parameters, or `$location` if called with a parameter */ path: locationGetterSetter('$$path', function(path) { path = path !== null ? path.toString() : ''; return path.charAt(0) === '/' ? path : '/' + path; }), /** * @ngdoc method * @name $location#search * * @description * This method is getter / setter. * * Return search part (as object) of current URL when called without any parameter. * * Change search part when called with parameter and return `$location`. * * * ```js * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo * var searchObject = $location.search(); * // => {foo: 'bar', baz: 'xoxo'} * * // set foo to 'yipee' * $location.search('foo', 'yipee'); * // $location.search() => {foo: 'yipee', baz: 'xoxo'} * ``` * * @param {string|Object.|Object.>} search New search params - string or * hash object. * * When called with a single argument the method acts as a setter, setting the `search` component * of `$location` to the specified value. * * If the argument is a hash object containing an array of values, these values will be encoded * as duplicate search parameters in the URL. * * @param {(string|Number|Array|boolean)=} paramValue If `search` is a string or number, then `paramValue` * will override only a single search property. * * If `paramValue` is an array, it will override the property of the `search` component of * `$location` specified via the first argument. * * If `paramValue` is `null`, the property specified via the first argument will be deleted. * * If `paramValue` is `true`, the property specified via the first argument will be added with no * value nor trailing equal sign. * * @return {Object} If called with no arguments returns the parsed `search` object. If called with * one or more arguments returns `$location` object itself. */ search: function(search, paramValue) { switch (arguments.length) { case 0: return this.$$search; case 1: if (isString(search) || isNumber(search)) { search = search.toString(); this.$$search = parseKeyValue(search); } else if (isObject(search)) { search = copy(search, {}); // remove object undefined or null properties forEach(search, function(value, key) { if (value == null) delete search[key]; }); this.$$search = search; } else { throw $locationMinErr('isrcharg', 'The first argument of the `$location#search()` call must be a string or an object.'); } break; default: if (isUndefined(paramValue) || paramValue === null) { delete this.$$search[search]; } else { this.$$search[search] = paramValue; } } this.$$compose(); return this; }, /** * @ngdoc method * @name $location#hash * * @description * This method is getter / setter. * * Returns the hash fragment when called without any parameters. * * Changes the hash fragment when called with a parameter and returns `$location`. * * * ```js * // given URL http://example.com/#/some/path?foo=bar&baz=xoxo#hashValue * var hash = $location.hash(); * // => "hashValue" * ``` * * @param {(string|number)=} hash New hash fragment * @return {string} hash */ hash: locationGetterSetter('$$hash', function(hash) { return hash !== null ? hash.toString() : ''; }), /** * @ngdoc method * @name $location#replace * * @description * If called, all changes to $location during the current `$digest` will replace the current history * record, instead of adding a new one. */ replace: function() { this.$$replace = true; return this; } }; forEach([LocationHashbangInHtml5Url, LocationHashbangUrl, LocationHtml5Url], function(Location) { Location.prototype = Object.create(locationPrototype); /** * @ngdoc method * @name $location#state * * @description * This method is getter / setter. * * Return the history state object when called without any parameter. * * Change the history state object when called with one parameter and return `$location`. * The state object is later passed to `pushState` or `replaceState`. * * NOTE: This method is supported only in HTML5 mode and only in browsers supporting * the HTML5 History API (i.e. methods `pushState` and `replaceState`). If you need to support * older browsers (like IE9 or Android < 4.0), don't use this method. * * @param {object=} state State object for pushState or replaceState * @return {object} state */ Location.prototype.state = function(state) { if (!arguments.length) { return this.$$state; } if (Location !== LocationHtml5Url || !this.$$html5) { throw $locationMinErr('nostate', 'History API state support is available only ' + 'in HTML5 mode and only in browsers supporting HTML5 History API'); } // The user might modify `stateObject` after invoking `$location.state(stateObject)` // but we're changing the $$state reference to $browser.state() during the $digest // so the modification window is narrow. this.$$state = isUndefined(state) ? null : state; return this; }; }); function locationGetter(property) { return /** @this */ function() { return this[property]; }; } function locationGetterSetter(property, preprocess) { return /** @this */ function(value) { if (isUndefined(value)) { return this[property]; } this[property] = preprocess(value); this.$$compose(); return this; }; } /** * @ngdoc service * @name $location * * @requires $rootElement * * @description * The $location service parses the URL in the browser address bar (based on the * [window.location](https://developer.mozilla.org/en/window.location)) and makes the URL * available to your application. Changes to the URL in the address bar are reflected into * $location service and changes to $location are reflected into the browser address bar. * * **The $location service:** * * - Exposes the current URL in the browser address bar, so you can * - Watch and observe the URL. * - Change the URL. * - Synchronizes the URL with the browser when the user * - Changes the address bar. * - Clicks the back or forward button (or clicks a History link). * - Clicks on a link. * - Represents the URL object as a set of methods (protocol, host, port, path, search, hash). * * For more information see {@link guide/$location Developer Guide: Using $location} */ /** * @ngdoc provider * @name $locationProvider * @this * * @description * Use the `$locationProvider` to configure how the application deep linking paths are stored. */ function $LocationProvider() { var hashPrefix = '!', html5Mode = { enabled: false, requireBase: true, rewriteLinks: true }; /** * @ngdoc method * @name $locationProvider#hashPrefix * @description * The default value for the prefix is `'!'`. * @param {string=} prefix Prefix for hash part (containing path and search) * @returns {*} current value if used as getter or itself (chaining) if used as setter */ this.hashPrefix = function(prefix) { if (isDefined(prefix)) { hashPrefix = prefix; return this; } else { return hashPrefix; } }; /** * @ngdoc method * @name $locationProvider#html5Mode * @description * @param {(boolean|Object)=} mode If boolean, sets `html5Mode.enabled` to value. * If object, sets `enabled`, `requireBase` and `rewriteLinks` to respective values. Supported * properties: * - **enabled** – `{boolean}` – (default: false) If true, will rely on `history.pushState` to * change urls where supported. Will fall back to hash-prefixed paths in browsers that do not * support `pushState`. * - **requireBase** - `{boolean}` - (default: `true`) When html5Mode is enabled, specifies * whether or not a tag is required to be present. If `enabled` and `requireBase` are * true, and a base tag is not present, an error will be thrown when `$location` is injected. * See the {@link guide/$location $location guide for more information} * - **rewriteLinks** - `{boolean|string}` - (default: `true`) When html5Mode is enabled, * enables/disables URL rewriting for relative links. If set to a string, URL rewriting will * only happen on links with an attribute that matches the given string. For example, if set * to `'internal-link'`, then the URL will only be rewritten for `` links. * Note that [attribute name normalization](guide/directive#normalization) does not apply * here, so `'internalLink'` will **not** match `'internal-link'`. * * @returns {Object} html5Mode object if used as getter or itself (chaining) if used as setter */ this.html5Mode = function(mode) { if (isBoolean(mode)) { html5Mode.enabled = mode; return this; } else if (isObject(mode)) { if (isBoolean(mode.enabled)) { html5Mode.enabled = mode.enabled; } if (isBoolean(mode.requireBase)) { html5Mode.requireBase = mode.requireBase; } if (isBoolean(mode.rewriteLinks) || isString(mode.rewriteLinks)) { html5Mode.rewriteLinks = mode.rewriteLinks; } return this; } else { return html5Mode; } }; /** * @ngdoc event * @name $location#$locationChangeStart * @eventType broadcast on root scope * @description * Broadcasted before a URL will change. * * This change can be prevented by calling * `preventDefault` method of the event. See {@link ng.$rootScope.Scope#$on} for more * details about event object. Upon successful change * {@link ng.$location#$locationChangeSuccess $locationChangeSuccess} is fired. * * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when * the browser supports the HTML5 History API. * * @param {Object} angularEvent Synthetic event object. * @param {string} newUrl New URL * @param {string=} oldUrl URL that was before it was changed. * @param {string=} newState New history state object * @param {string=} oldState History state object that was before it was changed. */ /** * @ngdoc event * @name $location#$locationChangeSuccess * @eventType broadcast on root scope * @description * Broadcasted after a URL was changed. * * The `newState` and `oldState` parameters may be defined only in HTML5 mode and when * the browser supports the HTML5 History API. * * @param {Object} angularEvent Synthetic event object. * @param {string} newUrl New URL * @param {string=} oldUrl URL that was before it was changed. * @param {string=} newState New history state object * @param {string=} oldState History state object that was before it was changed. */ this.$get = ['$rootScope', '$browser', '$sniffer', '$rootElement', '$window', function($rootScope, $browser, $sniffer, $rootElement, $window) { var $location, LocationMode, baseHref = $browser.baseHref(), // if base[href] is undefined, it defaults to '' initialUrl = $browser.url(), appBase; if (html5Mode.enabled) { if (!baseHref && html5Mode.requireBase) { throw $locationMinErr('nobase', '$location in HTML5 mode requires a tag to be present!'); } appBase = serverBase(initialUrl) + (baseHref || '/'); LocationMode = $sniffer.history ? LocationHtml5Url : LocationHashbangInHtml5Url; } else { appBase = stripHash(initialUrl); LocationMode = LocationHashbangUrl; } var appBaseNoFile = stripFile(appBase); $location = new LocationMode(appBase, appBaseNoFile, '#' + hashPrefix); $location.$$parseLinkUrl(initialUrl, initialUrl); $location.$$state = $browser.state(); var IGNORE_URI_REGEXP = /^\s*(javascript|mailto):/i; function setBrowserUrlWithFallback(url, replace, state) { var oldUrl = $location.url(); var oldState = $location.$$state; try { $browser.url(url, replace, state); // Make sure $location.state() returns referentially identical (not just deeply equal) // state object; this makes possible quick checking if the state changed in the digest // loop. Checking deep equality would be too expensive. $location.$$state = $browser.state(); } catch (e) { // Restore old values if pushState fails $location.url(oldUrl); $location.$$state = oldState; throw e; } } $rootElement.on('click', function(event) { var rewriteLinks = html5Mode.rewriteLinks; // TODO(vojta): rewrite link when opening in new tab/window (in legacy browser) // currently we open nice url link and redirect then if (!rewriteLinks || event.ctrlKey || event.metaKey || event.shiftKey || event.which === 2 || event.button === 2) return; var elm = jqLite(event.target); // traverse the DOM up to find first A tag while (nodeName_(elm[0]) !== 'a') { // ignore rewriting if no A tag (reached root element, or no parent - removed from document) if (elm[0] === $rootElement[0] || !(elm = elm.parent())[0]) return; } if (isString(rewriteLinks) && isUndefined(elm.attr(rewriteLinks))) return; var absHref = elm.prop('href'); // get the actual href attribute - see // http://msdn.microsoft.com/en-us/library/ie/dd347148(v=vs.85).aspx var relHref = elm.attr('href') || elm.attr('xlink:href'); if (isObject(absHref) && absHref.toString() === '[object SVGAnimatedString]') { // SVGAnimatedString.animVal should be identical to SVGAnimatedString.baseVal, unless during // an animation. absHref = urlResolve(absHref.animVal).href; } // Ignore when url is started with javascript: or mailto: if (IGNORE_URI_REGEXP.test(absHref)) return; if (absHref && !elm.attr('target') && !event.isDefaultPrevented()) { if ($location.$$parseLinkUrl(absHref, relHref)) { // We do a preventDefault for all urls that are part of the angular application, // in html5mode and also without, so that we are able to abort navigation without // getting double entries in the location history. event.preventDefault(); // update location manually if ($location.absUrl() !== $browser.url()) { $rootScope.$apply(); // hack to work around FF6 bug 684208 when scenario runner clicks on links $window.angular['ff-684208-preventDefault'] = true; } } } }); // rewrite hashbang url <> html5 url if (trimEmptyHash($location.absUrl()) !== trimEmptyHash(initialUrl)) { $browser.url($location.absUrl(), true); } var initializing = true; // update $location when $browser url changes $browser.onUrlChange(function(newUrl, newState) { if (!startsWith(newUrl, appBaseNoFile)) { // If we are navigating outside of the app then force a reload $window.location.href = newUrl; return; } $rootScope.$evalAsync(function() { var oldUrl = $location.absUrl(); var oldState = $location.$$state; var defaultPrevented; newUrl = trimEmptyHash(newUrl); $location.$$parse(newUrl); $location.$$state = newState; defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl, newState, oldState).defaultPrevented; // if the location was changed by a `$locationChangeStart` handler then stop // processing this location change if ($location.absUrl() !== newUrl) return; if (defaultPrevented) { $location.$$parse(oldUrl); $location.$$state = oldState; setBrowserUrlWithFallback(oldUrl, false, oldState); } else { initializing = false; afterLocationChange(oldUrl, oldState); } }); if (!$rootScope.$$phase) $rootScope.$digest(); }); // update browser $rootScope.$watch(function $locationWatch() { var oldUrl = trimEmptyHash($browser.url()); var newUrl = trimEmptyHash($location.absUrl()); var oldState = $browser.state(); var currentReplace = $location.$$replace; var urlOrStateChanged = oldUrl !== newUrl || ($location.$$html5 && $sniffer.history && oldState !== $location.$$state); if (initializing || urlOrStateChanged) { initializing = false; $rootScope.$evalAsync(function() { var newUrl = $location.absUrl(); var defaultPrevented = $rootScope.$broadcast('$locationChangeStart', newUrl, oldUrl, $location.$$state, oldState).defaultPrevented; // if the location was changed by a `$locationChangeStart` handler then stop // processing this location change if ($location.absUrl() !== newUrl) return; if (defaultPrevented) { $location.$$parse(oldUrl); $location.$$state = oldState; } else { if (urlOrStateChanged) { setBrowserUrlWithFallback(newUrl, currentReplace, oldState === $location.$$state ? null : $location.$$state); } afterLocationChange(oldUrl, oldState); } }); } $location.$$replace = false; // we don't need to return anything because $evalAsync will make the digest loop dirty when // there is a change }); return $location; function afterLocationChange(oldUrl, oldState) { $rootScope.$broadcast('$locationChangeSuccess', $location.absUrl(), oldUrl, $location.$$state, oldState); } }]; } /** * @ngdoc service * @name $log * @requires $window * * @description * Simple service for logging. Default implementation safely writes the message * into the browser's console (if present). * * The main purpose of this service is to simplify debugging and troubleshooting. * * The default is to log `debug` messages. You can use * {@link ng.$logProvider ng.$logProvider#debugEnabled} to change this. * * @example angular.module('logExample', []) .controller('LogController', ['$scope', '$log', function($scope, $log) { $scope.$log = $log; $scope.message = 'Hello World!'; }]);

Reload this page with open console, enter text and hit the log button...

 */ /** * @ngdoc provider * @name $logProvider * @this * * @description * Use the `$logProvider` to configure how the application logs messages */ function $LogProvider() { var debug = true, self = this; /** * @ngdoc method * @name $logProvider#debugEnabled * @description * @param {boolean=} flag enable or disable debug level messages * @returns {*} current value if used as getter or itself (chaining) if used as setter */ this.debugEnabled = function(flag) { if (isDefined(flag)) { debug = flag; return this; } else { return debug; } }; this.$get = ['$window', function($window) { return { /** * @ngdoc method * @name $log#log * * @description * Write a log message */ log: consoleLog('log'), /** * @ngdoc method * @name $log#info * * @description * Write an information message */ info: consoleLog('info'), /** * @ngdoc method * @name $log#warn * * @description * Write a warning message */ warn: consoleLog('warn'), /** * @ngdoc method * @name $log#error * * @description * Write an error message */ error: consoleLog('error'), /** * @ngdoc method * @name $log#debug * * @description * Write a debug message */ debug: (function() { var fn = consoleLog('debug'); return function() { if (debug) { fn.apply(self, arguments); } }; })() }; function formatError(arg) { if (arg instanceof Error) { if (arg.stack) { arg = (arg.message && arg.stack.indexOf(arg.message) === -1) ? 'Error: ' + arg.message + '\n' + arg.stack : arg.stack; } else if (arg.sourceURL) { arg = arg.message + '\n' + arg.sourceURL + ':' + arg.line; } } return arg; } function consoleLog(type) { var console = $window.console || {}, logFn = console[type] || console.log || noop, hasApply = false; // Note: reading logFn.apply throws an error in IE11 in IE8 document mode. // The reason behind this is that console.log has type "object" in IE8... try { hasApply = !!logFn.apply; } catch (e) { /* empty */ } if (hasApply) { return function() { var args = []; forEach(arguments, function(arg) { args.push(formatError(arg)); }); return logFn.apply(console, args); }; } // we are IE which either doesn't have window.console => this is noop and we do nothing, // or we are IE where console.log doesn't have apply so we log at least first 2 args return function(arg1, arg2) { logFn(arg1, arg2 == null ? '' : arg2); }; } }]; } /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Any commits to this file should be reviewed with security in mind. * * Changes to this file can potentially create security vulnerabilities. * * An approval from 2 Core members with history of modifying * * this file is required. * * * * Does the change somehow allow for arbitrary javascript to be executed? * * Or allows for someone to change the prototype of built-in objects? * * Or gives undesired access to variables likes document or window? * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ var $parseMinErr = minErr('$parse'); var objectValueOf = {}.constructor.prototype.valueOf; // Sandboxing Angular Expressions // ------------------------------ // Angular expressions are no longer sandboxed. So it is now even easier to access arbitrary JS code by // various means such as obtaining a reference to native JS functions like the Function constructor. // // As an example, consider the following Angular expression: // // {}.toString.constructor('alert("evil JS code")') // // It is important to realize that if you create an expression from a string that contains user provided // content then it is possible that your application contains a security vulnerability to an XSS style attack. // // See https://docs.angularjs.org/guide/security function getStringValue(name) { // Property names must be strings. This means that non-string objects cannot be used // as keys in an object. Any non-string object, including a number, is typecasted // into a string via the toString method. // -- MDN, https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Operators/Property_accessors#Property_names // // So, to ensure that we are checking the same `name` that JavaScript would use, we cast it // to a string. It's not always possible. If `name` is an object and its `toString` method is // 'broken' (doesn't return a string, isn't a function, etc.), an error will be thrown: // // TypeError: Cannot convert object to primitive value // // For performance reasons, we don't catch this error here and allow it to propagate up the call // stack. Note that you'll get the same error in JavaScript if you try to access a property using // such a 'broken' object as a key. return name + ''; } var OPERATORS = createMap(); forEach('+ - * / % === !== == != < > <= >= && || ! = |'.split(' '), function(operator) { OPERATORS[operator] = true; }); var ESCAPE = {'n':'\n', 'f':'\f', 'r':'\r', 't':'\t', 'v':'\v', '\'':'\'', '"':'"'}; ///////////////////////////////////////// /** * @constructor */ var Lexer = function Lexer(options) { this.options = options; }; Lexer.prototype = { constructor: Lexer, lex: function(text) { this.text = text; this.index = 0; this.tokens = []; while (this.index < this.text.length) { var ch = this.text.charAt(this.index); if (ch === '"' || ch === '\'') { this.readString(ch); } else if (this.isNumber(ch) || ch === '.' && this.isNumber(this.peek())) { this.readNumber(); } else if (this.isIdentifierStart(this.peekMultichar())) { this.readIdent(); } else if (this.is(ch, '(){}[].,;:?')) { this.tokens.push({index: this.index, text: ch}); this.index++; } else if (this.isWhitespace(ch)) { this.index++; } else { var ch2 = ch + this.peek(); var ch3 = ch2 + this.peek(2); var op1 = OPERATORS[ch]; var op2 = OPERATORS[ch2]; var op3 = OPERATORS[ch3]; if (op1 || op2 || op3) { var token = op3 ? ch3 : (op2 ? ch2 : ch); this.tokens.push({index: this.index, text: token, operator: true}); this.index += token.length; } else { this.throwError('Unexpected next character ', this.index, this.index + 1); } } } return this.tokens; }, is: function(ch, chars) { return chars.indexOf(ch) !== -1; }, peek: function(i) { var num = i || 1; return (this.index + num < this.text.length) ? this.text.charAt(this.index + num) : false; }, isNumber: function(ch) { return ('0' <= ch && ch <= '9') && typeof ch === 'string'; }, isWhitespace: function(ch) { // IE treats non-breaking space as \u00A0 return (ch === ' ' || ch === '\r' || ch === '\t' || ch === '\n' || ch === '\v' || ch === '\u00A0'); }, isIdentifierStart: function(ch) { return this.options.isIdentifierStart ? this.options.isIdentifierStart(ch, this.codePointAt(ch)) : this.isValidIdentifierStart(ch); }, isValidIdentifierStart: function(ch) { return ('a' <= ch && ch <= 'z' || 'A' <= ch && ch <= 'Z' || '_' === ch || ch === '$'); }, isIdentifierContinue: function(ch) { return this.options.isIdentifierContinue ? this.options.isIdentifierContinue(ch, this.codePointAt(ch)) : this.isValidIdentifierContinue(ch); }, isValidIdentifierContinue: function(ch, cp) { return this.isValidIdentifierStart(ch, cp) || this.isNumber(ch); }, codePointAt: function(ch) { if (ch.length === 1) return ch.charCodeAt(0); // eslint-disable-next-line no-bitwise return (ch.charCodeAt(0) << 10) + ch.charCodeAt(1) - 0x35FDC00; }, peekMultichar: function() { var ch = this.text.charAt(this.index); var peek = this.peek(); if (!peek) { return ch; } var cp1 = ch.charCodeAt(0); var cp2 = peek.charCodeAt(0); if (cp1 >= 0xD800 && cp1 <= 0xDBFF && cp2 >= 0xDC00 && cp2 <= 0xDFFF) { return ch + peek; } return ch; }, isExpOperator: function(ch) { return (ch === '-' || ch === '+' || this.isNumber(ch)); }, throwError: function(error, start, end) { end = end || this.index; var colStr = (isDefined(start) ? 's ' + start + '-' + this.index + ' [' + this.text.substring(start, end) + ']' : ' ' + end); throw $parseMinErr('lexerr', 'Lexer Error: {0} at column{1} in expression [{2}].', error, colStr, this.text); }, readNumber: function() { var number = ''; var start = this.index; while (this.index < this.text.length) { var ch = lowercase(this.text.charAt(this.index)); if (ch === '.' || this.isNumber(ch)) { number += ch; } else { var peekCh = this.peek(); if (ch === 'e' && this.isExpOperator(peekCh)) { number += ch; } else if (this.isExpOperator(ch) && peekCh && this.isNumber(peekCh) && number.charAt(number.length - 1) === 'e') { number += ch; } else if (this.isExpOperator(ch) && (!peekCh || !this.isNumber(peekCh)) && number.charAt(number.length - 1) === 'e') { this.throwError('Invalid exponent'); } else { break; } } this.index++; } this.tokens.push({ index: start, text: number, constant: true, value: Number(number) }); }, readIdent: function() { var start = this.index; this.index += this.peekMultichar().length; while (this.index < this.text.length) { var ch = this.peekMultichar(); if (!this.isIdentifierContinue(ch)) { break; } this.index += ch.length; } this.tokens.push({ index: start, text: this.text.slice(start, this.index), identifier: true }); }, readString: function(quote) { var start = this.index; this.index++; var string = ''; var rawString = quote; var escape = false; while (this.index < this.text.length) { var ch = this.text.charAt(this.index); rawString += ch; if (escape) { if (ch === 'u') { var hex = this.text.substring(this.index + 1, this.index + 5); if (!hex.match(/[\da-f]{4}/i)) { this.throwError('Invalid unicode escape [\\u' + hex + ']'); } this.index += 4; string += String.fromCharCode(parseInt(hex, 16)); } else { var rep = ESCAPE[ch]; string = string + (rep || ch); } escape = false; } else if (ch === '\\') { escape = true; } else if (ch === quote) { this.index++; this.tokens.push({ index: start, text: rawString, constant: true, value: string }); return; } else { string += ch; } this.index++; } this.throwError('Unterminated quote', start); } }; var AST = function AST(lexer, options) { this.lexer = lexer; this.options = options; }; AST.Program = 'Program'; AST.ExpressionStatement = 'ExpressionStatement'; AST.AssignmentExpression = 'AssignmentExpression'; AST.ConditionalExpression = 'ConditionalExpression'; AST.LogicalExpression = 'LogicalExpression'; AST.BinaryExpression = 'BinaryExpression'; AST.UnaryExpression = 'UnaryExpression'; AST.CallExpression = 'CallExpression'; AST.MemberExpression = 'MemberExpression'; AST.Identifier = 'Identifier'; AST.Literal = 'Literal'; AST.ArrayExpression = 'ArrayExpression'; AST.Property = 'Property'; AST.ObjectExpression = 'ObjectExpression'; AST.ThisExpression = 'ThisExpression'; AST.LocalsExpression = 'LocalsExpression'; // Internal use only AST.NGValueParameter = 'NGValueParameter'; AST.prototype = { ast: function(text) { this.text = text; this.tokens = this.lexer.lex(text); var value = this.program(); if (this.tokens.length !== 0) { this.throwError('is an unexpected token', this.tokens[0]); } return value; }, program: function() { var body = []; while (true) { if (this.tokens.length > 0 && !this.peek('}', ')', ';', ']')) body.push(this.expressionStatement()); if (!this.expect(';')) { return { type: AST.Program, body: body}; } } }, expressionStatement: function() { return { type: AST.ExpressionStatement, expression: this.filterChain() }; }, filterChain: function() { var left = this.expression(); while (this.expect('|')) { left = this.filter(left); } return left; }, expression: function() { return this.assignment(); }, assignment: function() { var result = this.ternary(); if (this.expect('=')) { if (!isAssignable(result)) { throw $parseMinErr('lval', 'Trying to assign a value to a non l-value'); } result = { type: AST.AssignmentExpression, left: result, right: this.assignment(), operator: '='}; } return result; }, ternary: function() { var test = this.logicalOR(); var alternate; var consequent; if (this.expect('?')) { alternate = this.expression(); if (this.consume(':')) { consequent = this.expression(); return { type: AST.ConditionalExpression, test: test, alternate: alternate, consequent: consequent}; } } return test; }, logicalOR: function() { var left = this.logicalAND(); while (this.expect('||')) { left = { type: AST.LogicalExpression, operator: '||', left: left, right: this.logicalAND() }; } return left; }, logicalAND: function() { var left = this.equality(); while (this.expect('&&')) { left = { type: AST.LogicalExpression, operator: '&&', left: left, right: this.equality()}; } return left; }, equality: function() { var left = this.relational(); var token; while ((token = this.expect('==','!=','===','!=='))) { left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.relational() }; } return left; }, relational: function() { var left = this.additive(); var token; while ((token = this.expect('<', '>', '<=', '>='))) { left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.additive() }; } return left; }, additive: function() { var left = this.multiplicative(); var token; while ((token = this.expect('+','-'))) { left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.multiplicative() }; } return left; }, multiplicative: function() { var left = this.unary(); var token; while ((token = this.expect('*','/','%'))) { left = { type: AST.BinaryExpression, operator: token.text, left: left, right: this.unary() }; } return left; }, unary: function() { var token; if ((token = this.expect('+', '-', '!'))) { return { type: AST.UnaryExpression, operator: token.text, prefix: true, argument: this.unary() }; } else { return this.primary(); } }, primary: function() { var primary; if (this.expect('(')) { primary = this.filterChain(); this.consume(')'); } else if (this.expect('[')) { primary = this.arrayDeclaration(); } else if (this.expect('{')) { primary = this.object(); } else if (this.selfReferential.hasOwnProperty(this.peek().text)) { primary = copy(this.selfReferential[this.consume().text]); } else if (this.options.literals.hasOwnProperty(this.peek().text)) { primary = { type: AST.Literal, value: this.options.literals[this.consume().text]}; } else if (this.peek().identifier) { primary = this.identifier(); } else if (this.peek().constant) { primary = this.constant(); } else { this.throwError('not a primary expression', this.peek()); } var next; while ((next = this.expect('(', '[', '.'))) { if (next.text === '(') { primary = {type: AST.CallExpression, callee: primary, arguments: this.parseArguments() }; this.consume(')'); } else if (next.text === '[') { primary = { type: AST.MemberExpression, object: primary, property: this.expression(), computed: true }; this.consume(']'); } else if (next.text === '.') { primary = { type: AST.MemberExpression, object: primary, property: this.identifier(), computed: false }; } else { this.throwError('IMPOSSIBLE'); } } return primary; }, filter: function(baseExpression) { var args = [baseExpression]; var result = {type: AST.CallExpression, callee: this.identifier(), arguments: args, filter: true}; while (this.expect(':')) { args.push(this.expression()); } return result; }, parseArguments: function() { var args = []; if (this.peekToken().text !== ')') { do { args.push(this.filterChain()); } while (this.expect(',')); } return args; }, identifier: function() { var token = this.consume(); if (!token.identifier) { this.throwError('is not a valid identifier', token); } return { type: AST.Identifier, name: token.text }; }, constant: function() { // TODO check that it is a constant return { type: AST.Literal, value: this.consume().value }; }, arrayDeclaration: function() { var elements = []; if (this.peekToken().text !== ']') { do { if (this.peek(']')) { // Support trailing commas per ES5.1. break; } elements.push(this.expression()); } while (this.expect(',')); } this.consume(']'); return { type: AST.ArrayExpression, elements: elements }; }, object: function() { var properties = [], property; if (this.peekToken().text !== '}') { do { if (this.peek('}')) { // Support trailing commas per ES5.1. break; } property = {type: AST.Property, kind: 'init'}; if (this.peek().constant) { property.key = this.constant(); property.computed = false; this.consume(':'); property.value = this.expression(); } else if (this.peek().identifier) { property.key = this.identifier(); property.computed = false; if (this.peek(':')) { this.consume(':'); property.value = this.expression(); } else { property.value = property.key; } } else if (this.peek('[')) { this.consume('['); property.key = this.expression(); this.consume(']'); property.computed = true; this.consume(':'); property.value = this.expression(); } else { this.throwError('invalid key', this.peek()); } properties.push(property); } while (this.expect(',')); } this.consume('}'); return {type: AST.ObjectExpression, properties: properties }; }, throwError: function(msg, token) { throw $parseMinErr('syntax', 'Syntax Error: Token \'{0}\' {1} at column {2} of the expression [{3}] starting at [{4}].', token.text, msg, (token.index + 1), this.text, this.text.substring(token.index)); }, consume: function(e1) { if (this.tokens.length === 0) { throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text); } var token = this.expect(e1); if (!token) { this.throwError('is unexpected, expecting [' + e1 + ']', this.peek()); } return token; }, peekToken: function() { if (this.tokens.length === 0) { throw $parseMinErr('ueoe', 'Unexpected end of expression: {0}', this.text); } return this.tokens[0]; }, peek: function(e1, e2, e3, e4) { return this.peekAhead(0, e1, e2, e3, e4); }, peekAhead: function(i, e1, e2, e3, e4) { if (this.tokens.length > i) { var token = this.tokens[i]; var t = token.text; if (t === e1 || t === e2 || t === e3 || t === e4 || (!e1 && !e2 && !e3 && !e4)) { return token; } } return false; }, expect: function(e1, e2, e3, e4) { var token = this.peek(e1, e2, e3, e4); if (token) { this.tokens.shift(); return token; } return false; }, selfReferential: { 'this': {type: AST.ThisExpression }, '$locals': {type: AST.LocalsExpression } } }; function ifDefined(v, d) { return typeof v !== 'undefined' ? v : d; } function plusFn(l, r) { if (typeof l === 'undefined') return r; if (typeof r === 'undefined') return l; return l + r; } function isStateless($filter, filterName) { var fn = $filter(filterName); return !fn.$stateful; } function findConstantAndWatchExpressions(ast, $filter) { var allConstants; var argsToWatch; var isStatelessFilter; switch (ast.type) { case AST.Program: allConstants = true; forEach(ast.body, function(expr) { findConstantAndWatchExpressions(expr.expression, $filter); allConstants = allConstants && expr.expression.constant; }); ast.constant = allConstants; break; case AST.Literal: ast.constant = true; ast.toWatch = []; break; case AST.UnaryExpression: findConstantAndWatchExpressions(ast.argument, $filter); ast.constant = ast.argument.constant; ast.toWatch = ast.argument.toWatch; break; case AST.BinaryExpression: findConstantAndWatchExpressions(ast.left, $filter); findConstantAndWatchExpressions(ast.right, $filter); ast.constant = ast.left.constant && ast.right.constant; ast.toWatch = ast.left.toWatch.concat(ast.right.toWatch); break; case AST.LogicalExpression: findConstantAndWatchExpressions(ast.left, $filter); findConstantAndWatchExpressions(ast.right, $filter); ast.constant = ast.left.constant && ast.right.constant; ast.toWatch = ast.constant ? [] : [ast]; break; case AST.ConditionalExpression: findConstantAndWatchExpressions(ast.test, $filter); findConstantAndWatchExpressions(ast.alternate, $filter); findConstantAndWatchExpressions(ast.consequent, $filter); ast.constant = ast.test.constant && ast.alternate.constant && ast.consequent.constant; ast.toWatch = ast.constant ? [] : [ast]; break; case AST.Identifier: ast.constant = false; ast.toWatch = [ast]; break; case AST.MemberExpression: findConstantAndWatchExpressions(ast.object, $filter); if (ast.computed) { findConstantAndWatchExpressions(ast.property, $filter); } ast.constant = ast.object.constant && (!ast.computed || ast.property.constant); ast.toWatch = [ast]; break; case AST.CallExpression: isStatelessFilter = ast.filter ? isStateless($filter, ast.callee.name) : false; allConstants = isStatelessFilter; argsToWatch = []; forEach(ast.arguments, function(expr) { findConstantAndWatchExpressions(expr, $filter); allConstants = allConstants && expr.constant; if (!expr.constant) { argsToWatch.push.apply(argsToWatch, expr.toWatch); } }); ast.constant = allConstants; ast.toWatch = isStatelessFilter ? argsToWatch : [ast]; break; case AST.AssignmentExpression: findConstantAndWatchExpressions(ast.left, $filter); findConstantAndWatchExpressions(ast.right, $filter); ast.constant = ast.left.constant && ast.right.constant; ast.toWatch = [ast]; break; case AST.ArrayExpression: allConstants = true; argsToWatch = []; forEach(ast.elements, function(expr) { findConstantAndWatchExpressions(expr, $filter); allConstants = allConstants && expr.constant; if (!expr.constant) { argsToWatch.push.apply(argsToWatch, expr.toWatch); } }); ast.constant = allConstants; ast.toWatch = argsToWatch; break; case AST.ObjectExpression: allConstants = true; argsToWatch = []; forEach(ast.properties, function(property) { findConstantAndWatchExpressions(property.value, $filter); allConstants = allConstants && property.value.constant && !property.computed; if (!property.value.constant) { argsToWatch.push.apply(argsToWatch, property.value.toWatch); } }); ast.constant = allConstants; ast.toWatch = argsToWatch; break; case AST.ThisExpression: ast.constant = false; ast.toWatch = []; break; case AST.LocalsExpression: ast.constant = false; ast.toWatch = []; break; } } function getInputs(body) { if (body.length !== 1) return; var lastExpression = body[0].expression; var candidate = lastExpression.toWatch; if (candidate.length !== 1) return candidate; return candidate[0] !== lastExpression ? candidate : undefined; } function isAssignable(ast) { return ast.type === AST.Identifier || ast.type === AST.MemberExpression; } function assignableAST(ast) { if (ast.body.length === 1 && isAssignable(ast.body[0].expression)) { return {type: AST.AssignmentExpression, left: ast.body[0].expression, right: {type: AST.NGValueParameter}, operator: '='}; } } function isLiteral(ast) { return ast.body.length === 0 || ast.body.length === 1 && ( ast.body[0].expression.type === AST.Literal || ast.body[0].expression.type === AST.ArrayExpression || ast.body[0].expression.type === AST.ObjectExpression); } function isConstant(ast) { return ast.constant; } function ASTCompiler(astBuilder, $filter) { this.astBuilder = astBuilder; this.$filter = $filter; } ASTCompiler.prototype = { compile: function(expression) { var self = this; var ast = this.astBuilder.ast(expression); this.state = { nextId: 0, filters: {}, fn: {vars: [], body: [], own: {}}, assign: {vars: [], body: [], own: {}}, inputs: [] }; findConstantAndWatchExpressions(ast, self.$filter); var extra = ''; var assignable; this.stage = 'assign'; if ((assignable = assignableAST(ast))) { this.state.computing = 'assign'; var result = this.nextId(); this.recurse(assignable, result); this.return_(result); extra = 'fn.assign=' + this.generateFunction('assign', 's,v,l'); } var toWatch = getInputs(ast.body); self.stage = 'inputs'; forEach(toWatch, function(watch, key) { var fnKey = 'fn' + key; self.state[fnKey] = {vars: [], body: [], own: {}}; self.state.computing = fnKey; var intoId = self.nextId(); self.recurse(watch, intoId); self.return_(intoId); self.state.inputs.push(fnKey); watch.watchId = key; }); this.state.computing = 'fn'; this.stage = 'main'; this.recurse(ast); var fnString = // The build and minification steps remove the string "use strict" from the code, but this is done using a regex. // This is a workaround for this until we do a better job at only removing the prefix only when we should. '"' + this.USE + ' ' + this.STRICT + '";\n' + this.filterPrefix() + 'var fn=' + this.generateFunction('fn', 's,l,a,i') + extra + this.watchFns() + 'return fn;'; // eslint-disable-next-line no-new-func var fn = (new Function('$filter', 'getStringValue', 'ifDefined', 'plus', fnString))( this.$filter, getStringValue, ifDefined, plusFn); this.state = this.stage = undefined; fn.literal = isLiteral(ast); fn.constant = isConstant(ast); return fn; }, USE: 'use', STRICT: 'strict', watchFns: function() { var result = []; var fns = this.state.inputs; var self = this; forEach(fns, function(name) { result.push('var ' + name + '=' + self.generateFunction(name, 's')); }); if (fns.length) { result.push('fn.inputs=[' + fns.join(',') + '];'); } return result.join(''); }, generateFunction: function(name, params) { return 'function(' + params + '){' + this.varsPrefix(name) + this.body(name) + '};'; }, filterPrefix: function() { var parts = []; var self = this; forEach(this.state.filters, function(id, filter) { parts.push(id + '=$filter(' + self.escape(filter) + ')'); }); if (parts.length) return 'var ' + parts.join(',') + ';'; return ''; }, varsPrefix: function(section) { return this.state[section].vars.length ? 'var ' + this.state[section].vars.join(',') + ';' : ''; }, body: function(section) { return this.state[section].body.join(''); }, recurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) { var left, right, self = this, args, expression, computed; recursionFn = recursionFn || noop; if (!skipWatchIdCheck && isDefined(ast.watchId)) { intoId = intoId || this.nextId(); this.if_('i', this.lazyAssign(intoId, this.computedMember('i', ast.watchId)), this.lazyRecurse(ast, intoId, nameId, recursionFn, create, true) ); return; } switch (ast.type) { case AST.Program: forEach(ast.body, function(expression, pos) { self.recurse(expression.expression, undefined, undefined, function(expr) { right = expr; }); if (pos !== ast.body.length - 1) { self.current().body.push(right, ';'); } else { self.return_(right); } }); break; case AST.Literal: expression = this.escape(ast.value); this.assign(intoId, expression); recursionFn(intoId || expression); break; case AST.UnaryExpression: this.recurse(ast.argument, undefined, undefined, function(expr) { right = expr; }); expression = ast.operator + '(' + this.ifDefined(right, 0) + ')'; this.assign(intoId, expression); recursionFn(expression); break; case AST.BinaryExpression: this.recurse(ast.left, undefined, undefined, function(expr) { left = expr; }); this.recurse(ast.right, undefined, undefined, function(expr) { right = expr; }); if (ast.operator === '+') { expression = this.plus(left, right); } else if (ast.operator === '-') { expression = this.ifDefined(left, 0) + ast.operator + this.ifDefined(right, 0); } else { expression = '(' + left + ')' + ast.operator + '(' + right + ')'; } this.assign(intoId, expression); recursionFn(expression); break; case AST.LogicalExpression: intoId = intoId || this.nextId(); self.recurse(ast.left, intoId); self.if_(ast.operator === '&&' ? intoId : self.not(intoId), self.lazyRecurse(ast.right, intoId)); recursionFn(intoId); break; case AST.ConditionalExpression: intoId = intoId || this.nextId(); self.recurse(ast.test, intoId); self.if_(intoId, self.lazyRecurse(ast.alternate, intoId), self.lazyRecurse(ast.consequent, intoId)); recursionFn(intoId); break; case AST.Identifier: intoId = intoId || this.nextId(); if (nameId) { nameId.context = self.stage === 'inputs' ? 's' : this.assign(this.nextId(), this.getHasOwnProperty('l', ast.name) + '?l:s'); nameId.computed = false; nameId.name = ast.name; } self.if_(self.stage === 'inputs' || self.not(self.getHasOwnProperty('l', ast.name)), function() { self.if_(self.stage === 'inputs' || 's', function() { if (create && create !== 1) { self.if_( self.isNull(self.nonComputedMember('s', ast.name)), self.lazyAssign(self.nonComputedMember('s', ast.name), '{}')); } self.assign(intoId, self.nonComputedMember('s', ast.name)); }); }, intoId && self.lazyAssign(intoId, self.nonComputedMember('l', ast.name)) ); recursionFn(intoId); break; case AST.MemberExpression: left = nameId && (nameId.context = this.nextId()) || this.nextId(); intoId = intoId || this.nextId(); self.recurse(ast.object, left, undefined, function() { self.if_(self.notNull(left), function() { if (ast.computed) { right = self.nextId(); self.recurse(ast.property, right); self.getStringValue(right); if (create && create !== 1) { self.if_(self.not(self.computedMember(left, right)), self.lazyAssign(self.computedMember(left, right), '{}')); } expression = self.computedMember(left, right); self.assign(intoId, expression); if (nameId) { nameId.computed = true; nameId.name = right; } } else { if (create && create !== 1) { self.if_(self.isNull(self.nonComputedMember(left, ast.property.name)), self.lazyAssign(self.nonComputedMember(left, ast.property.name), '{}')); } expression = self.nonComputedMember(left, ast.property.name); self.assign(intoId, expression); if (nameId) { nameId.computed = false; nameId.name = ast.property.name; } } }, function() { self.assign(intoId, 'undefined'); }); recursionFn(intoId); }, !!create); break; case AST.CallExpression: intoId = intoId || this.nextId(); if (ast.filter) { right = self.filter(ast.callee.name); args = []; forEach(ast.arguments, function(expr) { var argument = self.nextId(); self.recurse(expr, argument); args.push(argument); }); expression = right + '(' + args.join(',') + ')'; self.assign(intoId, expression); recursionFn(intoId); } else { right = self.nextId(); left = {}; args = []; self.recurse(ast.callee, right, left, function() { self.if_(self.notNull(right), function() { forEach(ast.arguments, function(expr) { self.recurse(expr, ast.constant ? undefined : self.nextId(), undefined, function(argument) { args.push(argument); }); }); if (left.name) { expression = self.member(left.context, left.name, left.computed) + '(' + args.join(',') + ')'; } else { expression = right + '(' + args.join(',') + ')'; } self.assign(intoId, expression); }, function() { self.assign(intoId, 'undefined'); }); recursionFn(intoId); }); } break; case AST.AssignmentExpression: right = this.nextId(); left = {}; this.recurse(ast.left, undefined, left, function() { self.if_(self.notNull(left.context), function() { self.recurse(ast.right, right); expression = self.member(left.context, left.name, left.computed) + ast.operator + right; self.assign(intoId, expression); recursionFn(intoId || expression); }); }, 1); break; case AST.ArrayExpression: args = []; forEach(ast.elements, function(expr) { self.recurse(expr, ast.constant ? undefined : self.nextId(), undefined, function(argument) { args.push(argument); }); }); expression = '[' + args.join(',') + ']'; this.assign(intoId, expression); recursionFn(intoId || expression); break; case AST.ObjectExpression: args = []; computed = false; forEach(ast.properties, function(property) { if (property.computed) { computed = true; } }); if (computed) { intoId = intoId || this.nextId(); this.assign(intoId, '{}'); forEach(ast.properties, function(property) { if (property.computed) { left = self.nextId(); self.recurse(property.key, left); } else { left = property.key.type === AST.Identifier ? property.key.name : ('' + property.key.value); } right = self.nextId(); self.recurse(property.value, right); self.assign(self.member(intoId, left, property.computed), right); }); } else { forEach(ast.properties, function(property) { self.recurse(property.value, ast.constant ? undefined : self.nextId(), undefined, function(expr) { args.push(self.escape( property.key.type === AST.Identifier ? property.key.name : ('' + property.key.value)) + ':' + expr); }); }); expression = '{' + args.join(',') + '}'; this.assign(intoId, expression); } recursionFn(intoId || expression); break; case AST.ThisExpression: this.assign(intoId, 's'); recursionFn(intoId || 's'); break; case AST.LocalsExpression: this.assign(intoId, 'l'); recursionFn(intoId || 'l'); break; case AST.NGValueParameter: this.assign(intoId, 'v'); recursionFn(intoId || 'v'); break; } }, getHasOwnProperty: function(element, property) { var key = element + '.' + property; var own = this.current().own; if (!own.hasOwnProperty(key)) { own[key] = this.nextId(false, element + '&&(' + this.escape(property) + ' in ' + element + ')'); } return own[key]; }, assign: function(id, value) { if (!id) return; this.current().body.push(id, '=', value, ';'); return id; }, filter: function(filterName) { if (!this.state.filters.hasOwnProperty(filterName)) { this.state.filters[filterName] = this.nextId(true); } return this.state.filters[filterName]; }, ifDefined: function(id, defaultValue) { return 'ifDefined(' + id + ',' + this.escape(defaultValue) + ')'; }, plus: function(left, right) { return 'plus(' + left + ',' + right + ')'; }, return_: function(id) { this.current().body.push('return ', id, ';'); }, if_: function(test, alternate, consequent) { if (test === true) { alternate(); } else { var body = this.current().body; body.push('if(', test, '){'); alternate(); body.push('}'); if (consequent) { body.push('else{'); consequent(); body.push('}'); } } }, not: function(expression) { return '!(' + expression + ')'; }, isNull: function(expression) { return expression + '==null'; }, notNull: function(expression) { return expression + '!=null'; }, nonComputedMember: function(left, right) { var SAFE_IDENTIFIER = /^[$_a-zA-Z][$_a-zA-Z0-9]*$/; var UNSAFE_CHARACTERS = /[^$_a-zA-Z0-9]/g; if (SAFE_IDENTIFIER.test(right)) { return left + '.' + right; } else { return left + '["' + right.replace(UNSAFE_CHARACTERS, this.stringEscapeFn) + '"]'; } }, computedMember: function(left, right) { return left + '[' + right + ']'; }, member: function(left, right, computed) { if (computed) return this.computedMember(left, right); return this.nonComputedMember(left, right); }, getStringValue: function(item) { this.assign(item, 'getStringValue(' + item + ')'); }, lazyRecurse: function(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck) { var self = this; return function() { self.recurse(ast, intoId, nameId, recursionFn, create, skipWatchIdCheck); }; }, lazyAssign: function(id, value) { var self = this; return function() { self.assign(id, value); }; }, stringEscapeRegex: /[^ a-zA-Z0-9]/g, stringEscapeFn: function(c) { return '\\u' + ('0000' + c.charCodeAt(0).toString(16)).slice(-4); }, escape: function(value) { if (isString(value)) return '\'' + value.replace(this.stringEscapeRegex, this.stringEscapeFn) + '\''; if (isNumber(value)) return value.toString(); if (value === true) return 'true'; if (value === false) return 'false'; if (value === null) return 'null'; if (typeof value === 'undefined') return 'undefined'; throw $parseMinErr('esc', 'IMPOSSIBLE'); }, nextId: function(skip, init) { var id = 'v' + (this.state.nextId++); if (!skip) { this.current().vars.push(id + (init ? '=' + init : '')); } return id; }, current: function() { return this.state[this.state.computing]; } }; function ASTInterpreter(astBuilder, $filter) { this.astBuilder = astBuilder; this.$filter = $filter; } ASTInterpreter.prototype = { compile: function(expression) { var self = this; var ast = this.astBuilder.ast(expression); findConstantAndWatchExpressions(ast, self.$filter); var assignable; var assign; if ((assignable = assignableAST(ast))) { assign = this.recurse(assignable); } var toWatch = getInputs(ast.body); var inputs; if (toWatch) { inputs = []; forEach(toWatch, function(watch, key) { var input = self.recurse(watch); watch.input = input; inputs.push(input); watch.watchId = key; }); } var expressions = []; forEach(ast.body, function(expression) { expressions.push(self.recurse(expression.expression)); }); var fn = ast.body.length === 0 ? noop : ast.body.length === 1 ? expressions[0] : function(scope, locals) { var lastValue; forEach(expressions, function(exp) { lastValue = exp(scope, locals); }); return lastValue; }; if (assign) { fn.assign = function(scope, value, locals) { return assign(scope, locals, value); }; } if (inputs) { fn.inputs = inputs; } fn.literal = isLiteral(ast); fn.constant = isConstant(ast); return fn; }, recurse: function(ast, context, create) { var left, right, self = this, args; if (ast.input) { return this.inputs(ast.input, ast.watchId); } switch (ast.type) { case AST.Literal: return this.value(ast.value, context); case AST.UnaryExpression: right = this.recurse(ast.argument); return this['unary' + ast.operator](right, context); case AST.BinaryExpression: left = this.recurse(ast.left); right = this.recurse(ast.right); return this['binary' + ast.operator](left, right, context); case AST.LogicalExpression: left = this.recurse(ast.left); right = this.recurse(ast.right); return this['binary' + ast.operator](left, right, context); case AST.ConditionalExpression: return this['ternary?:']( this.recurse(ast.test), this.recurse(ast.alternate), this.recurse(ast.consequent), context ); case AST.Identifier: return self.identifier(ast.name, context, create); case AST.MemberExpression: left = this.recurse(ast.object, false, !!create); if (!ast.computed) { right = ast.property.name; } if (ast.computed) right = this.recurse(ast.property); return ast.computed ? this.computedMember(left, right, context, create) : this.nonComputedMember(left, right, context, create); case AST.CallExpression: args = []; forEach(ast.arguments, function(expr) { args.push(self.recurse(expr)); }); if (ast.filter) right = this.$filter(ast.callee.name); if (!ast.filter) right = this.recurse(ast.callee, true); return ast.filter ? function(scope, locals, assign, inputs) { var values = []; for (var i = 0; i < args.length; ++i) { values.push(args[i](scope, locals, assign, inputs)); } var value = right.apply(undefined, values, inputs); return context ? {context: undefined, name: undefined, value: value} : value; } : function(scope, locals, assign, inputs) { var rhs = right(scope, locals, assign, inputs); var value; if (rhs.value != null) { var values = []; for (var i = 0; i < args.length; ++i) { values.push(args[i](scope, locals, assign, inputs)); } value = rhs.value.apply(rhs.context, values); } return context ? {value: value} : value; }; case AST.AssignmentExpression: left = this.recurse(ast.left, true, 1); right = this.recurse(ast.right); return function(scope, locals, assign, inputs) { var lhs = left(scope, locals, assign, inputs); var rhs = right(scope, locals, assign, inputs); lhs.context[lhs.name] = rhs; return context ? {value: rhs} : rhs; }; case AST.ArrayExpression: args = []; forEach(ast.elements, function(expr) { args.push(self.recurse(expr)); }); return function(scope, locals, assign, inputs) { var value = []; for (var i = 0; i < args.length; ++i) { value.push(args[i](scope, locals, assign, inputs)); } return context ? {value: value} : value; }; case AST.ObjectExpression: args = []; forEach(ast.properties, function(property) { if (property.computed) { args.push({key: self.recurse(property.key), computed: true, value: self.recurse(property.value) }); } else { args.push({key: property.key.type === AST.Identifier ? property.key.name : ('' + property.key.value), computed: false, value: self.recurse(property.value) }); } }); return function(scope, locals, assign, inputs) { var value = {}; for (var i = 0; i < args.length; ++i) { if (args[i].computed) { value[args[i].key(scope, locals, assign, inputs)] = args[i].value(scope, locals, assign, inputs); } else { value[args[i].key] = args[i].value(scope, locals, assign, inputs); } } return context ? {value: value} : value; }; case AST.ThisExpression: return function(scope) { return context ? {value: scope} : scope; }; case AST.LocalsExpression: return function(scope, locals) { return context ? {value: locals} : locals; }; case AST.NGValueParameter: return function(scope, locals, assign) { return context ? {value: assign} : assign; }; } }, 'unary+': function(argument, context) { return function(scope, locals, assign, inputs) { var arg = argument(scope, locals, assign, inputs); if (isDefined(arg)) { arg = +arg; } else { arg = 0; } return context ? {value: arg} : arg; }; }, 'unary-': function(argument, context) { return function(scope, locals, assign, inputs) { var arg = argument(scope, locals, assign, inputs); if (isDefined(arg)) { arg = -arg; } else { arg = -0; } return context ? {value: arg} : arg; }; }, 'unary!': function(argument, context) { return function(scope, locals, assign, inputs) { var arg = !argument(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary+': function(left, right, context) { return function(scope, locals, assign, inputs) { var lhs = left(scope, locals, assign, inputs); var rhs = right(scope, locals, assign, inputs); var arg = plusFn(lhs, rhs); return context ? {value: arg} : arg; }; }, 'binary-': function(left, right, context) { return function(scope, locals, assign, inputs) { var lhs = left(scope, locals, assign, inputs); var rhs = right(scope, locals, assign, inputs); var arg = (isDefined(lhs) ? lhs : 0) - (isDefined(rhs) ? rhs : 0); return context ? {value: arg} : arg; }; }, 'binary*': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) * right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary/': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) / right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary%': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) % right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary===': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) === right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary!==': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) !== right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary==': function(left, right, context) { return function(scope, locals, assign, inputs) { // eslint-disable-next-line eqeqeq var arg = left(scope, locals, assign, inputs) == right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary!=': function(left, right, context) { return function(scope, locals, assign, inputs) { // eslint-disable-next-line eqeqeq var arg = left(scope, locals, assign, inputs) != right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary<': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) < right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary>': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) > right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary<=': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) <= right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary>=': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) >= right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary&&': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) && right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'binary||': function(left, right, context) { return function(scope, locals, assign, inputs) { var arg = left(scope, locals, assign, inputs) || right(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, 'ternary?:': function(test, alternate, consequent, context) { return function(scope, locals, assign, inputs) { var arg = test(scope, locals, assign, inputs) ? alternate(scope, locals, assign, inputs) : consequent(scope, locals, assign, inputs); return context ? {value: arg} : arg; }; }, value: function(value, context) { return function() { return context ? {context: undefined, name: undefined, value: value} : value; }; }, identifier: function(name, context, create) { return function(scope, locals, assign, inputs) { var base = locals && (name in locals) ? locals : scope; if (create && create !== 1 && base && base[name] == null) { base[name] = {}; } var value = base ? base[name] : undefined; if (context) { return {context: base, name: name, value: value}; } else { return value; } }; }, computedMember: function(left, right, context, create) { return function(scope, locals, assign, inputs) { var lhs = left(scope, locals, assign, inputs); var rhs; var value; if (lhs != null) { rhs = right(scope, locals, assign, inputs); rhs = getStringValue(rhs); if (create && create !== 1) { if (lhs && !(lhs[rhs])) { lhs[rhs] = {}; } } value = lhs[rhs]; } if (context) { return {context: lhs, name: rhs, value: value}; } else { return value; } }; }, nonComputedMember: function(left, right, context, create) { return function(scope, locals, assign, inputs) { var lhs = left(scope, locals, assign, inputs); if (create && create !== 1) { if (lhs && lhs[right] == null) { lhs[right] = {}; } } var value = lhs != null ? lhs[right] : undefined; if (context) { return {context: lhs, name: right, value: value}; } else { return value; } }; }, inputs: function(input, watchId) { return function(scope, value, locals, inputs) { if (inputs) return inputs[watchId]; return input(scope, value, locals); }; } }; /** * @constructor */ var Parser = function Parser(lexer, $filter, options) { this.lexer = lexer; this.$filter = $filter; this.options = options; this.ast = new AST(lexer, options); this.astCompiler = options.csp ? new ASTInterpreter(this.ast, $filter) : new ASTCompiler(this.ast, $filter); }; Parser.prototype = { constructor: Parser, parse: function(text) { return this.astCompiler.compile(text); } }; function getValueOf(value) { return isFunction(value.valueOf) ? value.valueOf() : objectValueOf.call(value); } /////////////////////////////////// /** * @ngdoc service * @name $parse * @kind function * * @description * * Converts Angular {@link guide/expression expression} into a function. * * ```js * var getter = $parse('user.name'); * var setter = getter.assign; * var context = {user:{name:'angular'}}; * var locals = {user:{name:'local'}}; * * expect(getter(context)).toEqual('angular'); * setter(context, 'newValue'); * expect(context.user.name).toEqual('newValue'); * expect(getter(context, locals)).toEqual('local'); * ``` * * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. * * The returned function also has the following properties: * * `literal` – `{boolean}` – whether the expression's top-level node is a JavaScript * literal. * * `constant` – `{boolean}` – whether the expression is made entirely of JavaScript * constant literals. * * `assign` – `{?function(context, value)}` – if the expression is assignable, this will be * set to a function to change its value on the given context. * */ /** * @ngdoc provider * @name $parseProvider * @this * * @description * `$parseProvider` can be used for configuring the default behavior of the {@link ng.$parse $parse} * service. */ function $ParseProvider() { var cache = createMap(); var literals = { 'true': true, 'false': false, 'null': null, 'undefined': undefined }; var identStart, identContinue; /** * @ngdoc method * @name $parseProvider#addLiteral * @description * * Configure $parse service to add literal values that will be present as literal at expressions. * * @param {string} literalName Token for the literal value. The literal name value must be a valid literal name. * @param {*} literalValue Value for this literal. All literal values must be primitives or `undefined`. * **/ this.addLiteral = function(literalName, literalValue) { literals[literalName] = literalValue; }; /** * @ngdoc method * @name $parseProvider#setIdentifierFns * * @description * * Allows defining the set of characters that are allowed in Angular expressions. The function * `identifierStart` will get called to know if a given character is a valid character to be the * first character for an identifier. The function `identifierContinue` will get called to know if * a given character is a valid character to be a follow-up identifier character. The functions * `identifierStart` and `identifierContinue` will receive as arguments the single character to be * identifier and the character code point. These arguments will be `string` and `numeric`. Keep in * mind that the `string` parameter can be two characters long depending on the character * representation. It is expected for the function to return `true` or `false`, whether that * character is allowed or not. * * Since this function will be called extensively, keep the implementation of these functions fast, * as the performance of these functions have a direct impact on the expressions parsing speed. * * @param {function=} identifierStart The function that will decide whether the given character is * a valid identifier start character. * @param {function=} identifierContinue The function that will decide whether the given character is * a valid identifier continue character. */ this.setIdentifierFns = function(identifierStart, identifierContinue) { identStart = identifierStart; identContinue = identifierContinue; return this; }; this.$get = ['$filter', function($filter) { var noUnsafeEval = csp().noUnsafeEval; var $parseOptions = { csp: noUnsafeEval, literals: copy(literals), isIdentifierStart: isFunction(identStart) && identStart, isIdentifierContinue: isFunction(identContinue) && identContinue }; return $parse; function $parse(exp, interceptorFn) { var parsedExpression, oneTime, cacheKey; switch (typeof exp) { case 'string': exp = exp.trim(); cacheKey = exp; parsedExpression = cache[cacheKey]; if (!parsedExpression) { if (exp.charAt(0) === ':' && exp.charAt(1) === ':') { oneTime = true; exp = exp.substring(2); } var lexer = new Lexer($parseOptions); var parser = new Parser(lexer, $filter, $parseOptions); parsedExpression = parser.parse(exp); if (parsedExpression.constant) { parsedExpression.$$watchDelegate = constantWatchDelegate; } else if (oneTime) { parsedExpression.$$watchDelegate = parsedExpression.literal ? oneTimeLiteralWatchDelegate : oneTimeWatchDelegate; } else if (parsedExpression.inputs) { parsedExpression.$$watchDelegate = inputsWatchDelegate; } cache[cacheKey] = parsedExpression; } return addInterceptor(parsedExpression, interceptorFn); case 'function': return addInterceptor(exp, interceptorFn); default: return addInterceptor(noop, interceptorFn); } } function expressionInputDirtyCheck(newValue, oldValueOfValue) { if (newValue == null || oldValueOfValue == null) { // null/undefined return newValue === oldValueOfValue; } if (typeof newValue === 'object') { // attempt to convert the value to a primitive type // TODO(docs): add a note to docs that by implementing valueOf even objects and arrays can // be cheaply dirty-checked newValue = getValueOf(newValue); if (typeof newValue === 'object') { // objects/arrays are not supported - deep-watching them would be too expensive return false; } // fall-through to the primitive equality check } //Primitive or NaN // eslint-disable-next-line no-self-compare return newValue === oldValueOfValue || (newValue !== newValue && oldValueOfValue !== oldValueOfValue); } function inputsWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) { var inputExpressions = parsedExpression.inputs; var lastResult; if (inputExpressions.length === 1) { var oldInputValueOf = expressionInputDirtyCheck; // init to something unique so that equals check fails inputExpressions = inputExpressions[0]; return scope.$watch(function expressionInputWatch(scope) { var newInputValue = inputExpressions(scope); if (!expressionInputDirtyCheck(newInputValue, oldInputValueOf)) { lastResult = parsedExpression(scope, undefined, undefined, [newInputValue]); oldInputValueOf = newInputValue && getValueOf(newInputValue); } return lastResult; }, listener, objectEquality, prettyPrintExpression); } var oldInputValueOfValues = []; var oldInputValues = []; for (var i = 0, ii = inputExpressions.length; i < ii; i++) { oldInputValueOfValues[i] = expressionInputDirtyCheck; // init to something unique so that equals check fails oldInputValues[i] = null; } return scope.$watch(function expressionInputsWatch(scope) { var changed = false; for (var i = 0, ii = inputExpressions.length; i < ii; i++) { var newInputValue = inputExpressions[i](scope); if (changed || (changed = !expressionInputDirtyCheck(newInputValue, oldInputValueOfValues[i]))) { oldInputValues[i] = newInputValue; oldInputValueOfValues[i] = newInputValue && getValueOf(newInputValue); } } if (changed) { lastResult = parsedExpression(scope, undefined, undefined, oldInputValues); } return lastResult; }, listener, objectEquality, prettyPrintExpression); } function oneTimeWatchDelegate(scope, listener, objectEquality, parsedExpression, prettyPrintExpression) { var unwatch, lastValue; if (parsedExpression.inputs) { unwatch = inputsWatchDelegate(scope, oneTimeListener, objectEquality, parsedExpression, prettyPrintExpression); } else { unwatch = scope.$watch(oneTimeWatch, oneTimeListener, objectEquality); } return unwatch; function oneTimeWatch(scope) { return parsedExpression(scope); } function oneTimeListener(value, old, scope) { lastValue = value; if (isFunction(listener)) { listener(value, old, scope); } if (isDefined(value)) { scope.$$postDigest(function() { if (isDefined(lastValue)) { unwatch(); } }); } } } function oneTimeLiteralWatchDelegate(scope, listener, objectEquality, parsedExpression) { var unwatch, lastValue; unwatch = scope.$watch(function oneTimeWatch(scope) { return parsedExpression(scope); }, function oneTimeListener(value, old, scope) { lastValue = value; if (isFunction(listener)) { listener(value, old, scope); } if (isAllDefined(value)) { scope.$$postDigest(function() { if (isAllDefined(lastValue)) unwatch(); }); } }, objectEquality); return unwatch; function isAllDefined(value) { var allDefined = true; forEach(value, function(val) { if (!isDefined(val)) allDefined = false; }); return allDefined; } } function constantWatchDelegate(scope, listener, objectEquality, parsedExpression) { var unwatch = scope.$watch(function constantWatch(scope) { unwatch(); return parsedExpression(scope); }, listener, objectEquality); return unwatch; } function addInterceptor(parsedExpression, interceptorFn) { if (!interceptorFn) return parsedExpression; var watchDelegate = parsedExpression.$$watchDelegate; var useInputs = false; var regularWatch = watchDelegate !== oneTimeLiteralWatchDelegate && watchDelegate !== oneTimeWatchDelegate; var fn = regularWatch ? function regularInterceptedExpression(scope, locals, assign, inputs) { var value = useInputs && inputs ? inputs[0] : parsedExpression(scope, locals, assign, inputs); return interceptorFn(value, scope, locals); } : function oneTimeInterceptedExpression(scope, locals, assign, inputs) { var value = parsedExpression(scope, locals, assign, inputs); var result = interceptorFn(value, scope, locals); // we only return the interceptor's result if the // initial value is defined (for bind-once) return isDefined(value) ? result : value; }; // Propagate $$watchDelegates other then inputsWatchDelegate useInputs = !parsedExpression.inputs; if (parsedExpression.$$watchDelegate && parsedExpression.$$watchDelegate !== inputsWatchDelegate) { fn.$$watchDelegate = parsedExpression.$$watchDelegate; fn.inputs = parsedExpression.inputs; } else if (!interceptorFn.$stateful) { // If there is an interceptor, but no watchDelegate then treat the interceptor like // we treat filters - it is assumed to be a pure function unless flagged with $stateful fn.$$watchDelegate = inputsWatchDelegate; fn.inputs = parsedExpression.inputs ? parsedExpression.inputs : [parsedExpression]; } return fn; } }]; } /** * @ngdoc service * @name $q * @requires $rootScope * * @description * A service that helps you run functions asynchronously, and use their return values (or exceptions) * when they are done processing. * * This is a [Promises/A+](https://promisesaplus.com/)-compliant implementation of promises/deferred * objects inspired by [Kris Kowal's Q](https://github.com/kriskowal/q). * * $q can be used in two fashions --- one which is more similar to Kris Kowal's Q or jQuery's Deferred * implementations, and the other which resembles ES6 (ES2015) promises to some degree. * * # $q constructor * * The streamlined ES6 style promise is essentially just using $q as a constructor which takes a `resolver` * function as the first argument. This is similar to the native Promise implementation from ES6, * see [MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise). * * While the constructor-style use is supported, not all of the supporting methods from ES6 promises are * available yet. * * It can be used like so: * * ```js * // for the purpose of this example let's assume that variables `$q` and `okToGreet` * // are available in the current lexical scope (they could have been injected or passed in). * * function asyncGreet(name) { * // perform some asynchronous operation, resolve or reject the promise when appropriate. * return $q(function(resolve, reject) { * setTimeout(function() { * if (okToGreet(name)) { * resolve('Hello, ' + name + '!'); * } else { * reject('Greeting ' + name + ' is not allowed.'); * } * }, 1000); * }); * } * * var promise = asyncGreet('Robin Hood'); * promise.then(function(greeting) { * alert('Success: ' + greeting); * }, function(reason) { * alert('Failed: ' + reason); * }); * ``` * * Note: progress/notify callbacks are not currently supported via the ES6-style interface. * * Note: unlike ES6 behavior, an exception thrown in the constructor function will NOT implicitly reject the promise. * * However, the more traditional CommonJS-style usage is still available, and documented below. * * [The CommonJS Promise proposal](http://wiki.commonjs.org/wiki/Promises) describes a promise as an * interface for interacting with an object that represents the result of an action that is * performed asynchronously, and may or may not be finished at any given point in time. * * From the perspective of dealing with error handling, deferred and promise APIs are to * asynchronous programming what `try`, `catch` and `throw` keywords are to synchronous programming. * * ```js * // for the purpose of this example let's assume that variables `$q` and `okToGreet` * // are available in the current lexical scope (they could have been injected or passed in). * * function asyncGreet(name) { * var deferred = $q.defer(); * * setTimeout(function() { * deferred.notify('About to greet ' + name + '.'); * * if (okToGreet(name)) { * deferred.resolve('Hello, ' + name + '!'); * } else { * deferred.reject('Greeting ' + name + ' is not allowed.'); * } * }, 1000); * * return deferred.promise; * } * * var promise = asyncGreet('Robin Hood'); * promise.then(function(greeting) { * alert('Success: ' + greeting); * }, function(reason) { * alert('Failed: ' + reason); * }, function(update) { * alert('Got notification: ' + update); * }); * ``` * * At first it might not be obvious why this extra complexity is worth the trouble. The payoff * comes in the way of guarantees that promise and deferred APIs make, see * https://github.com/kriskowal/uncommonjs/blob/master/promises/specification.md. * * Additionally the promise api allows for composition that is very hard to do with the * traditional callback ([CPS](http://en.wikipedia.org/wiki/Continuation-passing_style)) approach. * For more on this please see the [Q documentation](https://github.com/kriskowal/q) especially the * section on serial or parallel joining of promises. * * # The Deferred API * * A new instance of deferred is constructed by calling `$q.defer()`. * * The purpose of the deferred object is to expose the associated Promise instance as well as APIs * that can be used for signaling the successful or unsuccessful completion, as well as the status * of the task. * * **Methods** * * - `resolve(value)` – resolves the derived promise with the `value`. If the value is a rejection * constructed via `$q.reject`, the promise will be rejected instead. * - `reject(reason)` – rejects the derived promise with the `reason`. This is equivalent to * resolving it with a rejection constructed via `$q.reject`. * - `notify(value)` - provides updates on the status of the promise's execution. This may be called * multiple times before the promise is either resolved or rejected. * * **Properties** * * - promise – `{Promise}` – promise object associated with this deferred. * * * # The Promise API * * A new promise instance is created when a deferred instance is created and can be retrieved by * calling `deferred.promise`. * * The purpose of the promise object is to allow for interested parties to get access to the result * of the deferred task when it completes. * * **Methods** * * - `then(successCallback, [errorCallback], [notifyCallback])` – regardless of when the promise was or * will be resolved or rejected, `then` calls one of the success or error callbacks asynchronously * as soon as the result is available. The callbacks are called with a single argument: the result * or rejection reason. Additionally, the notify callback may be called zero or more times to * provide a progress indication, before the promise is resolved or rejected. * * This method *returns a new promise* which is resolved or rejected via the return value of the * `successCallback`, `errorCallback` (unless that value is a promise, in which case it is resolved * with the value which is resolved in that promise using * [promise chaining](http://www.html5rocks.com/en/tutorials/es6/promises/#toc-promises-queues)). * It also notifies via the return value of the `notifyCallback` method. The promise cannot be * resolved or rejected from the notifyCallback method. The errorCallback and notifyCallback * arguments are optional. * * - `catch(errorCallback)` – shorthand for `promise.then(null, errorCallback)` * * - `finally(callback, notifyCallback)` – allows you to observe either the fulfillment or rejection of a promise, * but to do so without modifying the final value. This is useful to release resources or do some * clean-up that needs to be done whether the promise was rejected or resolved. See the [full * specification](https://github.com/kriskowal/q/wiki/API-Reference#promisefinallycallback) for * more information. * * # Chaining promises * * Because calling the `then` method of a promise returns a new derived promise, it is easily * possible to create a chain of promises: * * ```js * promiseB = promiseA.then(function(result) { * return result + 1; * }); * * // promiseB will be resolved immediately after promiseA is resolved and its value * // will be the result of promiseA incremented by 1 * ``` * * It is possible to create chains of any length and since a promise can be resolved with another * promise (which will defer its resolution further), it is possible to pause/defer resolution of * the promises at any point in the chain. This makes it possible to implement powerful APIs like * $http's response interceptors. * * * # Differences between Kris Kowal's Q and $q * * There are two main differences: * * - $q is integrated with the {@link ng.$rootScope.Scope} Scope model observation * mechanism in angular, which means faster propagation of resolution or rejection into your * models and avoiding unnecessary browser repaints, which would result in flickering UI. * - Q has many more features than $q, but that comes at a cost of bytes. $q is tiny, but contains * all the important functionality needed for common async tasks. * * # Testing * * ```js * it('should simulate promise', inject(function($q, $rootScope) { * var deferred = $q.defer(); * var promise = deferred.promise; * var resolvedValue; * * promise.then(function(value) { resolvedValue = value; }); * expect(resolvedValue).toBeUndefined(); * * // Simulate resolving of promise * deferred.resolve(123); * // Note that the 'then' function does not get called synchronously. * // This is because we want the promise API to always be async, whether or not * // it got called synchronously or asynchronously. * expect(resolvedValue).toBeUndefined(); * * // Propagate promise resolution to 'then' functions using $apply(). * $rootScope.$apply(); * expect(resolvedValue).toEqual(123); * })); * ``` * * @param {function(function, function)} resolver Function which is responsible for resolving or * rejecting the newly created promise. The first parameter is a function which resolves the * promise, the second parameter is a function which rejects the promise. * * @returns {Promise} The newly created promise. */ /** * @ngdoc provider * @name $qProvider * @this * * @description */ function $QProvider() { var errorOnUnhandledRejections = true; this.$get = ['$rootScope', '$exceptionHandler', function($rootScope, $exceptionHandler) { return qFactory(function(callback) { $rootScope.$evalAsync(callback); }, $exceptionHandler, errorOnUnhandledRejections); }]; /** * @ngdoc method * @name $qProvider#errorOnUnhandledRejections * @kind function * * @description * Retrieves or overrides whether to generate an error when a rejected promise is not handled. * This feature is enabled by default. * * @param {boolean=} value Whether to generate an error when a rejected promise is not handled. * @returns {boolean|ng.$qProvider} Current value when called without a new value or self for * chaining otherwise. */ this.errorOnUnhandledRejections = function(value) { if (isDefined(value)) { errorOnUnhandledRejections = value; return this; } else { return errorOnUnhandledRejections; } }; } /** @this */ function $$QProvider() { var errorOnUnhandledRejections = true; this.$get = ['$browser', '$exceptionHandler', function($browser, $exceptionHandler) { return qFactory(function(callback) { $browser.defer(callback); }, $exceptionHandler, errorOnUnhandledRejections); }]; this.errorOnUnhandledRejections = function(value) { if (isDefined(value)) { errorOnUnhandledRejections = value; return this; } else { return errorOnUnhandledRejections; } }; } /** * Constructs a promise manager. * * @param {function(function)} nextTick Function for executing functions in the next turn. * @param {function(...*)} exceptionHandler Function into which unexpected exceptions are passed for * debugging purposes. @ param {=boolean} errorOnUnhandledRejections Whether an error should be generated on unhandled * promises rejections. * @returns {object} Promise manager. */ function qFactory(nextTick, exceptionHandler, errorOnUnhandledRejections) { var $qMinErr = minErr('$q', TypeError); var queueSize = 0; var checkQueue = []; /** * @ngdoc method * @name ng.$q#defer * @kind function * * @description * Creates a `Deferred` object which represents a task which will finish in the future. * * @returns {Deferred} Returns a new instance of deferred. */ function defer() { return new Deferred(); } function Deferred() { var promise = this.promise = new Promise(); //Non prototype methods necessary to support unbound execution :/ this.resolve = function(val) { resolvePromise(promise, val); }; this.reject = function(reason) { rejectPromise(promise, reason); }; this.notify = function(progress) { notifyPromise(promise, progress); }; } function Promise() { this.$$state = { status: 0 }; } extend(Promise.prototype, { then: function(onFulfilled, onRejected, progressBack) { if (isUndefined(onFulfilled) && isUndefined(onRejected) && isUndefined(progressBack)) { return this; } var result = new Promise(); this.$$state.pending = this.$$state.pending || []; this.$$state.pending.push([result, onFulfilled, onRejected, progressBack]); if (this.$$state.status > 0) scheduleProcessQueue(this.$$state); return result; }, 'catch': function(callback) { return this.then(null, callback); }, 'finally': function(callback, progressBack) { return this.then(function(value) { return handleCallback(value, resolve, callback); }, function(error) { return handleCallback(error, reject, callback); }, progressBack); } }); function processQueue(state) { var fn, promise, pending; pending = state.pending; state.processScheduled = false; state.pending = undefined; try { for (var i = 0, ii = pending.length; i < ii; ++i) { state.pur = true; promise = pending[i][0]; fn = pending[i][state.status]; try { if (isFunction(fn)) { resolvePromise(promise, fn(state.value)); } else if (state.status === 1) { resolvePromise(promise, state.value); } else { rejectPromise(promise, state.value); } } catch (e) { rejectPromise(promise, e); } } } finally { --queueSize; if (errorOnUnhandledRejections && queueSize === 0) { nextTick(processChecks); } } } function processChecks() { // eslint-disable-next-line no-unmodified-loop-condition while (!queueSize && checkQueue.length) { var toCheck = checkQueue.shift(); if (!toCheck.pur) { toCheck.pur = true; var errorMessage = 'Possibly unhandled rejection: ' + toDebugString(toCheck.value); if (toCheck.value instanceof Error) { exceptionHandler(toCheck.value, errorMessage); } else { exceptionHandler(errorMessage); } } } } function scheduleProcessQueue(state) { if (errorOnUnhandledRejections && !state.pending && state.status === 2 && !state.pur) { if (queueSize === 0 && checkQueue.length === 0) { nextTick(processChecks); } checkQueue.push(state); } if (state.processScheduled || !state.pending) return; state.processScheduled = true; ++queueSize; nextTick(function() { processQueue(state); }); } function resolvePromise(promise, val) { if (promise.$$state.status) return; if (val === promise) { $$reject(promise, $qMinErr( 'qcycle', 'Expected promise to be resolved with value other than itself \'{0}\'', val)); } else { $$resolve(promise, val); } } function $$resolve(promise, val) { var then; var done = false; try { if (isObject(val) || isFunction(val)) then = val.then; if (isFunction(then)) { promise.$$state.status = -1; then.call(val, doResolve, doReject, doNotify); } else { promise.$$state.value = val; promise.$$state.status = 1; scheduleProcessQueue(promise.$$state); } } catch (e) { doReject(e); } function doResolve(val) { if (done) return; done = true; $$resolve(promise, val); } function doReject(val) { if (done) return; done = true; $$reject(promise, val); } function doNotify(progress) { notifyPromise(promise, progress); } } function rejectPromise(promise, reason) { if (promise.$$state.status) return; $$reject(promise, reason); } function $$reject(promise, reason) { promise.$$state.value = reason; promise.$$state.status = 2; scheduleProcessQueue(promise.$$state); } function notifyPromise(promise, progress) { var callbacks = promise.$$state.pending; if ((promise.$$state.status <= 0) && callbacks && callbacks.length) { nextTick(function() { var callback, result; for (var i = 0, ii = callbacks.length; i < ii; i++) { result = callbacks[i][0]; callback = callbacks[i][3]; try { notifyPromise(result, isFunction(callback) ? callback(progress) : progress); } catch (e) { exceptionHandler(e); } } }); } } /** * @ngdoc method * @name $q#reject * @kind function * * @description * Creates a promise that is resolved as rejected with the specified `reason`. This api should be * used to forward rejection in a chain of promises. If you are dealing with the last promise in * a promise chain, you don't need to worry about it. * * When comparing deferreds/promises to the familiar behavior of try/catch/throw, think of * `reject` as the `throw` keyword in JavaScript. This also means that if you "catch" an error via * a promise error callback and you want to forward the error to the promise derived from the * current promise, you have to "rethrow" the error by returning a rejection constructed via * `reject`. * * ```js * promiseB = promiseA.then(function(result) { * // success: do something and resolve promiseB * // with the old or a new result * return result; * }, function(reason) { * // error: handle the error if possible and * // resolve promiseB with newPromiseOrValue, * // otherwise forward the rejection to promiseB * if (canHandle(reason)) { * // handle the error and recover * return newPromiseOrValue; * } * return $q.reject(reason); * }); * ``` * * @param {*} reason Constant, message, exception or an object representing the rejection reason. * @returns {Promise} Returns a promise that was already resolved as rejected with the `reason`. */ function reject(reason) { var result = new Promise(); rejectPromise(result, reason); return result; } function handleCallback(value, resolver, callback) { var callbackOutput = null; try { if (isFunction(callback)) callbackOutput = callback(); } catch (e) { return reject(e); } if (isPromiseLike(callbackOutput)) { return callbackOutput.then(function() { return resolver(value); }, reject); } else { return resolver(value); } } /** * @ngdoc method * @name $q#when * @kind function * * @description * Wraps an object that might be a value or a (3rd party) then-able promise into a $q promise. * This is useful when you are dealing with an object that might or might not be a promise, or if * the promise comes from a source that can't be trusted. * * @param {*} value Value or a promise * @param {Function=} successCallback * @param {Function=} errorCallback * @param {Function=} progressCallback * @returns {Promise} Returns a promise of the passed value or promise */ function when(value, callback, errback, progressBack) { var result = new Promise(); resolvePromise(result, value); return result.then(callback, errback, progressBack); } /** * @ngdoc method * @name $q#resolve * @kind function * * @description * Alias of {@link ng.$q#when when} to maintain naming consistency with ES6. * * @param {*} value Value or a promise * @param {Function=} successCallback * @param {Function=} errorCallback * @param {Function=} progressCallback * @returns {Promise} Returns a promise of the passed value or promise */ var resolve = when; /** * @ngdoc method * @name $q#all * @kind function * * @description * Combines multiple promises into a single promise that is resolved when all of the input * promises are resolved. * * @param {Array.|Object.} promises An array or hash of promises. * @returns {Promise} Returns a single promise that will be resolved with an array/hash of values, * each value corresponding to the promise at the same index/key in the `promises` array/hash. * If any of the promises is resolved with a rejection, this resulting promise will be rejected * with the same rejection value. */ function all(promises) { var result = new Promise(), counter = 0, results = isArray(promises) ? [] : {}; forEach(promises, function(promise, key) { counter++; when(promise).then(function(value) { results[key] = value; if (!(--counter)) resolvePromise(result, results); }, function(reason) { rejectPromise(result, reason); }); }); if (counter === 0) { resolvePromise(result, results); } return result; } /** * @ngdoc method * @name $q#race * @kind function * * @description * Returns a promise that resolves or rejects as soon as one of those promises * resolves or rejects, with the value or reason from that promise. * * @param {Array.|Object.} promises An array or hash of promises. * @returns {Promise} a promise that resolves or rejects as soon as one of the `promises` * resolves or rejects, with the value or reason from that promise. */ function race(promises) { var deferred = defer(); forEach(promises, function(promise) { when(promise).then(deferred.resolve, deferred.reject); }); return deferred.promise; } function $Q(resolver) { if (!isFunction(resolver)) { throw $qMinErr('norslvr', 'Expected resolverFn, got \'{0}\'', resolver); } var promise = new Promise(); function resolveFn(value) { resolvePromise(promise, value); } function rejectFn(reason) { rejectPromise(promise, reason); } resolver(resolveFn, rejectFn); return promise; } // Let's make the instanceof operator work for promises, so that // `new $q(fn) instanceof $q` would evaluate to true. $Q.prototype = Promise.prototype; $Q.defer = defer; $Q.reject = reject; $Q.when = when; $Q.resolve = resolve; $Q.all = all; $Q.race = race; return $Q; } /** @this */ function $$RAFProvider() { //rAF this.$get = ['$window', '$timeout', function($window, $timeout) { var requestAnimationFrame = $window.requestAnimationFrame || $window.webkitRequestAnimationFrame; var cancelAnimationFrame = $window.cancelAnimationFrame || $window.webkitCancelAnimationFrame || $window.webkitCancelRequestAnimationFrame; var rafSupported = !!requestAnimationFrame; var raf = rafSupported ? function(fn) { var id = requestAnimationFrame(fn); return function() { cancelAnimationFrame(id); }; } : function(fn) { var timer = $timeout(fn, 16.66, false); // 1000 / 60 = 16.666 return function() { $timeout.cancel(timer); }; }; raf.supported = rafSupported; return raf; }]; } /** * DESIGN NOTES * * The design decisions behind the scope are heavily favored for speed and memory consumption. * * The typical use of scope is to watch the expressions, which most of the time return the same * value as last time so we optimize the operation. * * Closures construction is expensive in terms of speed as well as memory: * - No closures, instead use prototypical inheritance for API * - Internal state needs to be stored on scope directly, which means that private state is * exposed as $$____ properties * * Loop operations are optimized by using while(count--) { ... } * - This means that in order to keep the same order of execution as addition we have to add * items to the array at the beginning (unshift) instead of at the end (push) * * Child scopes are created and removed often * - Using an array would be slow since inserts in the middle are expensive; so we use linked lists * * There are fewer watches than observers. This is why you don't want the observer to be implemented * in the same way as watch. Watch requires return of the initialization function which is expensive * to construct. */ /** * @ngdoc provider * @name $rootScopeProvider * @description * * Provider for the $rootScope service. */ /** * @ngdoc method * @name $rootScopeProvider#digestTtl * @description * * Sets the number of `$digest` iterations the scope should attempt to execute before giving up and * assuming that the model is unstable. * * The current default is 10 iterations. * * In complex applications it's possible that the dependencies between `$watch`s will result in * several digest iterations. However if an application needs more than the default 10 digest * iterations for its model to stabilize then you should investigate what is causing the model to * continuously change during the digest. * * Increasing the TTL could have performance implications, so you should not change it without * proper justification. * * @param {number} limit The number of digest iterations. */ /** * @ngdoc service * @name $rootScope * @this * * @description * * Every application has a single root {@link ng.$rootScope.Scope scope}. * All other scopes are descendant scopes of the root scope. Scopes provide separation * between the model and the view, via a mechanism for watching the model for changes. * They also provide event emission/broadcast and subscription facility. See the * {@link guide/scope developer guide on scopes}. */ function $RootScopeProvider() { var TTL = 10; var $rootScopeMinErr = minErr('$rootScope'); var lastDirtyWatch = null; var applyAsyncId = null; this.digestTtl = function(value) { if (arguments.length) { TTL = value; } return TTL; }; function createChildScopeClass(parent) { function ChildScope() { this.$$watchers = this.$$nextSibling = this.$$childHead = this.$$childTail = null; this.$$listeners = {}; this.$$listenerCount = {}; this.$$watchersCount = 0; this.$id = nextUid(); this.$$ChildScope = null; } ChildScope.prototype = parent; return ChildScope; } this.$get = ['$exceptionHandler', '$parse', '$browser', function($exceptionHandler, $parse, $browser) { function destroyChildScope($event) { $event.currentScope.$$destroyed = true; } function cleanUpScope($scope) { // Support: IE 9 only if (msie === 9) { // There is a memory leak in IE9 if all child scopes are not disconnected // completely when a scope is destroyed. So this code will recurse up through // all this scopes children // // See issue https://github.com/angular/angular.js/issues/10706 if ($scope.$$childHead) { cleanUpScope($scope.$$childHead); } if ($scope.$$nextSibling) { cleanUpScope($scope.$$nextSibling); } } // The code below works around IE9 and V8's memory leaks // // See: // - https://code.google.com/p/v8/issues/detail?id=2073#c26 // - https://github.com/angular/angular.js/issues/6794#issuecomment-38648909 // - https://github.com/angular/angular.js/issues/1313#issuecomment-10378451 $scope.$parent = $scope.$$nextSibling = $scope.$$prevSibling = $scope.$$childHead = $scope.$$childTail = $scope.$root = $scope.$$watchers = null; } /** * @ngdoc type * @name $rootScope.Scope * * @description * A root scope can be retrieved using the {@link ng.$rootScope $rootScope} key from the * {@link auto.$injector $injector}. Child scopes are created using the * {@link ng.$rootScope.Scope#$new $new()} method. (Most scopes are created automatically when * compiled HTML template is executed.) See also the {@link guide/scope Scopes guide} for * an in-depth introduction and usage examples. * * * # Inheritance * A scope can inherit from a parent scope, as in this example: * ```js var parent = $rootScope; var child = parent.$new(); parent.salutation = "Hello"; expect(child.salutation).toEqual('Hello'); child.salutation = "Welcome"; expect(child.salutation).toEqual('Welcome'); expect(parent.salutation).toEqual('Hello'); * ``` * * When interacting with `Scope` in tests, additional helper methods are available on the * instances of `Scope` type. See {@link ngMock.$rootScope.Scope ngMock Scope} for additional * details. * * * @param {Object.=} providers Map of service factory which need to be * provided for the current scope. Defaults to {@link ng}. * @param {Object.=} instanceCache Provides pre-instantiated services which should * append/override services provided by `providers`. This is handy * when unit-testing and having the need to override a default * service. * @returns {Object} Newly created scope. * */ function Scope() { this.$id = nextUid(); this.$$phase = this.$parent = this.$$watchers = this.$$nextSibling = this.$$prevSibling = this.$$childHead = this.$$childTail = null; this.$root = this; this.$$destroyed = false; this.$$listeners = {}; this.$$listenerCount = {}; this.$$watchersCount = 0; this.$$isolateBindings = null; } /** * @ngdoc property * @name $rootScope.Scope#$id * * @description * Unique scope ID (monotonically increasing) useful for debugging. */ /** * @ngdoc property * @name $rootScope.Scope#$parent * * @description * Reference to the parent scope. */ /** * @ngdoc property * @name $rootScope.Scope#$root * * @description * Reference to the root scope. */ Scope.prototype = { constructor: Scope, /** * @ngdoc method * @name $rootScope.Scope#$new * @kind function * * @description * Creates a new child {@link ng.$rootScope.Scope scope}. * * The parent scope will propagate the {@link ng.$rootScope.Scope#$digest $digest()} event. * The scope can be removed from the scope hierarchy using {@link ng.$rootScope.Scope#$destroy $destroy()}. * * {@link ng.$rootScope.Scope#$destroy $destroy()} must be called on a scope when it is * desired for the scope and its child scopes to be permanently detached from the parent and * thus stop participating in model change detection and listener notification by invoking. * * @param {boolean} isolate If true, then the scope does not prototypically inherit from the * parent scope. The scope is isolated, as it can not see parent scope properties. * When creating widgets, it is useful for the widget to not accidentally read parent * state. * * @param {Scope} [parent=this] The {@link ng.$rootScope.Scope `Scope`} that will be the `$parent` * of the newly created scope. Defaults to `this` scope if not provided. * This is used when creating a transclude scope to correctly place it * in the scope hierarchy while maintaining the correct prototypical * inheritance. * * @returns {Object} The newly created child scope. * */ $new: function(isolate, parent) { var child; parent = parent || this; if (isolate) { child = new Scope(); child.$root = this.$root; } else { // Only create a child scope class if somebody asks for one, // but cache it to allow the VM to optimize lookups. if (!this.$$ChildScope) { this.$$ChildScope = createChildScopeClass(this); } child = new this.$$ChildScope(); } child.$parent = parent; child.$$prevSibling = parent.$$childTail; if (parent.$$childHead) { parent.$$childTail.$$nextSibling = child; parent.$$childTail = child; } else { parent.$$childHead = parent.$$childTail = child; } // When the new scope is not isolated or we inherit from `this`, and // the parent scope is destroyed, the property `$$destroyed` is inherited // prototypically. In all other cases, this property needs to be set // when the parent scope is destroyed. // The listener needs to be added after the parent is set if (isolate || parent !== this) child.$on('$destroy', destroyChildScope); return child; }, /** * @ngdoc method * @name $rootScope.Scope#$watch * @kind function * * @description * Registers a `listener` callback to be executed whenever the `watchExpression` changes. * * - The `watchExpression` is called on every call to {@link ng.$rootScope.Scope#$digest * $digest()} and should return the value that will be watched. (`watchExpression` should not change * its value when executed multiple times with the same input because it may be executed multiple * times by {@link ng.$rootScope.Scope#$digest $digest()}. That is, `watchExpression` should be * [idempotent](http://en.wikipedia.org/wiki/Idempotence).) * - The `listener` is called only when the value from the current `watchExpression` and the * previous call to `watchExpression` are not equal (with the exception of the initial run, * see below). Inequality is determined according to reference inequality, * [strict comparison](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators) * via the `!==` Javascript operator, unless `objectEquality == true` * (see next point) * - When `objectEquality == true`, inequality of the `watchExpression` is determined * according to the {@link angular.equals} function. To save the value of the object for * later comparison, the {@link angular.copy} function is used. This therefore means that * watching complex objects will have adverse memory and performance implications. * - This should not be used to watch for changes in objects that are * or contain [File](https://developer.mozilla.org/docs/Web/API/File) objects due to limitations with {@link angular.copy `angular.copy`}. * - The watch `listener` may change the model, which may trigger other `listener`s to fire. * This is achieved by rerunning the watchers until no changes are detected. The rerun * iteration limit is 10 to prevent an infinite loop deadlock. * * * If you want to be notified whenever {@link ng.$rootScope.Scope#$digest $digest} is called, * you can register a `watchExpression` function with no `listener`. (Be prepared for * multiple calls to your `watchExpression` because it will execute multiple times in a * single {@link ng.$rootScope.Scope#$digest $digest} cycle if a change is detected.) * * After a watcher is registered with the scope, the `listener` fn is called asynchronously * (via {@link ng.$rootScope.Scope#$evalAsync $evalAsync}) to initialize the * watcher. In rare cases, this is undesirable because the listener is called when the result * of `watchExpression` didn't change. To detect this scenario within the `listener` fn, you * can compare the `newVal` and `oldVal`. If these two values are identical (`===`) then the * listener was called due to initialization. * * * * # Example * ```js // let's assume that scope was dependency injected as the $rootScope var scope = $rootScope; scope.name = 'misko'; scope.counter = 0; expect(scope.counter).toEqual(0); scope.$watch('name', function(newValue, oldValue) { scope.counter = scope.counter + 1; }); expect(scope.counter).toEqual(0); scope.$digest(); // the listener is always called during the first $digest loop after it was registered expect(scope.counter).toEqual(1); scope.$digest(); // but now it will not be called unless the value changes expect(scope.counter).toEqual(1); scope.name = 'adam'; scope.$digest(); expect(scope.counter).toEqual(2); // Using a function as a watchExpression var food; scope.foodCounter = 0; expect(scope.foodCounter).toEqual(0); scope.$watch( // This function returns the value being watched. It is called for each turn of the $digest loop function() { return food; }, // This is the change listener, called when the value returned from the above function changes function(newValue, oldValue) { if ( newValue !== oldValue ) { // Only increment the counter if the value changed scope.foodCounter = scope.foodCounter + 1; } } ); // No digest has been run so the counter will be zero expect(scope.foodCounter).toEqual(0); // Run the digest but since food has not changed count will still be zero scope.$digest(); expect(scope.foodCounter).toEqual(0); // Update food and run digest. Now the counter will increment food = 'cheeseburger'; scope.$digest(); expect(scope.foodCounter).toEqual(1); * ``` * * * * @param {(function()|string)} watchExpression Expression that is evaluated on each * {@link ng.$rootScope.Scope#$digest $digest} cycle. A change in the return value triggers * a call to the `listener`. * * - `string`: Evaluated as {@link guide/expression expression} * - `function(scope)`: called with current `scope` as a parameter. * @param {function(newVal, oldVal, scope)} listener Callback called whenever the value * of `watchExpression` changes. * * - `newVal` contains the current value of the `watchExpression` * - `oldVal` contains the previous value of the `watchExpression` * - `scope` refers to the current scope * @param {boolean=} [objectEquality=false] Compare for object equality using {@link angular.equals} instead of * comparing for reference equality. * @returns {function()} Returns a deregistration function for this listener. */ $watch: function(watchExp, listener, objectEquality, prettyPrintExpression) { var get = $parse(watchExp); if (get.$$watchDelegate) { return get.$$watchDelegate(this, listener, objectEquality, get, watchExp); } var scope = this, array = scope.$$watchers, watcher = { fn: listener, last: initWatchVal, get: get, exp: prettyPrintExpression || watchExp, eq: !!objectEquality }; lastDirtyWatch = null; if (!isFunction(listener)) { watcher.fn = noop; } if (!array) { array = scope.$$watchers = []; array.$$digestWatchIndex = -1; } // we use unshift since we use a while loop in $digest for speed. // the while loop reads in reverse order. array.unshift(watcher); array.$$digestWatchIndex++; incrementWatchersCount(this, 1); return function deregisterWatch() { var index = arrayRemove(array, watcher); if (index >= 0) { incrementWatchersCount(scope, -1); if (index < array.$$digestWatchIndex) { array.$$digestWatchIndex--; } } lastDirtyWatch = null; }; }, /** * @ngdoc method * @name $rootScope.Scope#$watchGroup * @kind function * * @description * A variant of {@link ng.$rootScope.Scope#$watch $watch()} where it watches an array of `watchExpressions`. * If any one expression in the collection changes the `listener` is executed. * * - The items in the `watchExpressions` array are observed via the standard `$watch` operation. Their return * values are examined for changes on every call to `$digest`. * - The `listener` is called whenever any expression in the `watchExpressions` array changes. * * @param {Array.} watchExpressions Array of expressions that will be individually * watched using {@link ng.$rootScope.Scope#$watch $watch()} * * @param {function(newValues, oldValues, scope)} listener Callback called whenever the return value of any * expression in `watchExpressions` changes * The `newValues` array contains the current values of the `watchExpressions`, with the indexes matching * those of `watchExpression` * and the `oldValues` array contains the previous values of the `watchExpressions`, with the indexes matching * those of `watchExpression` * The `scope` refers to the current scope. * @returns {function()} Returns a de-registration function for all listeners. */ $watchGroup: function(watchExpressions, listener) { var oldValues = new Array(watchExpressions.length); var newValues = new Array(watchExpressions.length); var deregisterFns = []; var self = this; var changeReactionScheduled = false; var firstRun = true; if (!watchExpressions.length) { // No expressions means we call the listener ASAP var shouldCall = true; self.$evalAsync(function() { if (shouldCall) listener(newValues, newValues, self); }); return function deregisterWatchGroup() { shouldCall = false; }; } if (watchExpressions.length === 1) { // Special case size of one return this.$watch(watchExpressions[0], function watchGroupAction(value, oldValue, scope) { newValues[0] = value; oldValues[0] = oldValue; listener(newValues, (value === oldValue) ? newValues : oldValues, scope); }); } forEach(watchExpressions, function(expr, i) { var unwatchFn = self.$watch(expr, function watchGroupSubAction(value, oldValue) { newValues[i] = value; oldValues[i] = oldValue; if (!changeReactionScheduled) { changeReactionScheduled = true; self.$evalAsync(watchGroupAction); } }); deregisterFns.push(unwatchFn); }); function watchGroupAction() { changeReactionScheduled = false; if (firstRun) { firstRun = false; listener(newValues, newValues, self); } else { listener(newValues, oldValues, self); } } return function deregisterWatchGroup() { while (deregisterFns.length) { deregisterFns.shift()(); } }; }, /** * @ngdoc method * @name $rootScope.Scope#$watchCollection * @kind function * * @description * Shallow watches the properties of an object and fires whenever any of the properties change * (for arrays, this implies watching the array items; for object maps, this implies watching * the properties). If a change is detected, the `listener` callback is fired. * * - The `obj` collection is observed via standard $watch operation and is examined on every * call to $digest() to see if any items have been added, removed, or moved. * - The `listener` is called whenever anything within the `obj` has changed. Examples include * adding, removing, and moving items belonging to an object or array. * * * # Example * ```js $scope.names = ['igor', 'matias', 'misko', 'james']; $scope.dataCount = 4; $scope.$watchCollection('names', function(newNames, oldNames) { $scope.dataCount = newNames.length; }); expect($scope.dataCount).toEqual(4); $scope.$digest(); //still at 4 ... no changes expect($scope.dataCount).toEqual(4); $scope.names.pop(); $scope.$digest(); //now there's been a change expect($scope.dataCount).toEqual(3); * ``` * * * @param {string|function(scope)} obj Evaluated as {@link guide/expression expression}. The * expression value should evaluate to an object or an array which is observed on each * {@link ng.$rootScope.Scope#$digest $digest} cycle. Any shallow change within the * collection will trigger a call to the `listener`. * * @param {function(newCollection, oldCollection, scope)} listener a callback function called * when a change is detected. * - The `newCollection` object is the newly modified data obtained from the `obj` expression * - The `oldCollection` object is a copy of the former collection data. * Due to performance considerations, the`oldCollection` value is computed only if the * `listener` function declares two or more arguments. * - The `scope` argument refers to the current scope. * * @returns {function()} Returns a de-registration function for this listener. When the * de-registration function is executed, the internal watch operation is terminated. */ $watchCollection: function(obj, listener) { $watchCollectionInterceptor.$stateful = true; var self = this; // the current value, updated on each dirty-check run var newValue; // a shallow copy of the newValue from the last dirty-check run, // updated to match newValue during dirty-check run var oldValue; // a shallow copy of the newValue from when the last change happened var veryOldValue; // only track veryOldValue if the listener is asking for it var trackVeryOldValue = (listener.length > 1); var changeDetected = 0; var changeDetector = $parse(obj, $watchCollectionInterceptor); var internalArray = []; var internalObject = {}; var initRun = true; var oldLength = 0; function $watchCollectionInterceptor(_value) { newValue = _value; var newLength, key, bothNaN, newItem, oldItem; // If the new value is undefined, then return undefined as the watch may be a one-time watch if (isUndefined(newValue)) return; if (!isObject(newValue)) { // if primitive if (oldValue !== newValue) { oldValue = newValue; changeDetected++; } } else if (isArrayLike(newValue)) { if (oldValue !== internalArray) { // we are transitioning from something which was not an array into array. oldValue = internalArray; oldLength = oldValue.length = 0; changeDetected++; } newLength = newValue.length; if (oldLength !== newLength) { // if lengths do not match we need to trigger change notification changeDetected++; oldValue.length = oldLength = newLength; } // copy the items to oldValue and look for changes. for (var i = 0; i < newLength; i++) { oldItem = oldValue[i]; newItem = newValue[i]; // eslint-disable-next-line no-self-compare bothNaN = (oldItem !== oldItem) && (newItem !== newItem); if (!bothNaN && (oldItem !== newItem)) { changeDetected++; oldValue[i] = newItem; } } } else { if (oldValue !== internalObject) { // we are transitioning from something which was not an object into object. oldValue = internalObject = {}; oldLength = 0; changeDetected++; } // copy the items to oldValue and look for changes. newLength = 0; for (key in newValue) { if (hasOwnProperty.call(newValue, key)) { newLength++; newItem = newValue[key]; oldItem = oldValue[key]; if (key in oldValue) { // eslint-disable-next-line no-self-compare bothNaN = (oldItem !== oldItem) && (newItem !== newItem); if (!bothNaN && (oldItem !== newItem)) { changeDetected++; oldValue[key] = newItem; } } else { oldLength++; oldValue[key] = newItem; changeDetected++; } } } if (oldLength > newLength) { // we used to have more keys, need to find them and destroy them. changeDetected++; for (key in oldValue) { if (!hasOwnProperty.call(newValue, key)) { oldLength--; delete oldValue[key]; } } } } return changeDetected; } function $watchCollectionAction() { if (initRun) { initRun = false; listener(newValue, newValue, self); } else { listener(newValue, veryOldValue, self); } // make a copy for the next time a collection is changed if (trackVeryOldValue) { if (!isObject(newValue)) { //primitive veryOldValue = newValue; } else if (isArrayLike(newValue)) { veryOldValue = new Array(newValue.length); for (var i = 0; i < newValue.length; i++) { veryOldValue[i] = newValue[i]; } } else { // if object veryOldValue = {}; for (var key in newValue) { if (hasOwnProperty.call(newValue, key)) { veryOldValue[key] = newValue[key]; } } } } } return this.$watch(changeDetector, $watchCollectionAction); }, /** * @ngdoc method * @name $rootScope.Scope#$digest * @kind function * * @description * Processes all of the {@link ng.$rootScope.Scope#$watch watchers} of the current scope and * its children. Because a {@link ng.$rootScope.Scope#$watch watcher}'s listener can change * the model, the `$digest()` keeps calling the {@link ng.$rootScope.Scope#$watch watchers} * until no more listeners are firing. This means that it is possible to get into an infinite * loop. This function will throw `'Maximum iteration limit exceeded.'` if the number of * iterations exceeds 10. * * Usually, you don't call `$digest()` directly in * {@link ng.directive:ngController controllers} or in * {@link ng.$compileProvider#directive directives}. * Instead, you should call {@link ng.$rootScope.Scope#$apply $apply()} (typically from within * a {@link ng.$compileProvider#directive directive}), which will force a `$digest()`. * * If you want to be notified whenever `$digest()` is called, * you can register a `watchExpression` function with * {@link ng.$rootScope.Scope#$watch $watch()} with no `listener`. * * In unit tests, you may need to call `$digest()` to simulate the scope life cycle. * * # Example * ```js var scope = ...; scope.name = 'misko'; scope.counter = 0; expect(scope.counter).toEqual(0); scope.$watch('name', function(newValue, oldValue) { scope.counter = scope.counter + 1; }); expect(scope.counter).toEqual(0); scope.$digest(); // the listener is always called during the first $digest loop after it was registered expect(scope.counter).toEqual(1); scope.$digest(); // but now it will not be called unless the value changes expect(scope.counter).toEqual(1); scope.name = 'adam'; scope.$digest(); expect(scope.counter).toEqual(2); * ``` * */ $digest: function() { var watch, value, last, fn, get, watchers, dirty, ttl = TTL, next, current, target = this, watchLog = [], logIdx, asyncTask; beginPhase('$digest'); // Check for changes to browser url that happened in sync before the call to $digest $browser.$$checkUrlChange(); if (this === $rootScope && applyAsyncId !== null) { // If this is the root scope, and $applyAsync has scheduled a deferred $apply(), then // cancel the scheduled $apply and flush the queue of expressions to be evaluated. $browser.defer.cancel(applyAsyncId); flushApplyAsync(); } lastDirtyWatch = null; do { // "while dirty" loop dirty = false; current = target; // It's safe for asyncQueuePosition to be a local variable here because this loop can't // be reentered recursively. Calling $digest from a function passed to $applyAsync would // lead to a '$digest already in progress' error. for (var asyncQueuePosition = 0; asyncQueuePosition < asyncQueue.length; asyncQueuePosition++) { try { asyncTask = asyncQueue[asyncQueuePosition]; asyncTask.scope.$eval(asyncTask.expression, asyncTask.locals); } catch (e) { $exceptionHandler(e); } lastDirtyWatch = null; } asyncQueue.length = 0; traverseScopesLoop: do { // "traverse the scopes" loop if ((watchers = current.$$watchers)) { // process our watches watchers.$$digestWatchIndex = watchers.length; while (watchers.$$digestWatchIndex--) { try { watch = watchers[watchers.$$digestWatchIndex]; // Most common watches are on primitives, in which case we can short // circuit it with === operator, only when === fails do we use .equals if (watch) { get = watch.get; if ((value = get(current)) !== (last = watch.last) && !(watch.eq ? equals(value, last) : (isNumberNaN(value) && isNumberNaN(last)))) { dirty = true; lastDirtyWatch = watch; watch.last = watch.eq ? copy(value, null) : value; fn = watch.fn; fn(value, ((last === initWatchVal) ? value : last), current); if (ttl < 5) { logIdx = 4 - ttl; if (!watchLog[logIdx]) watchLog[logIdx] = []; watchLog[logIdx].push({ msg: isFunction(watch.exp) ? 'fn: ' + (watch.exp.name || watch.exp.toString()) : watch.exp, newVal: value, oldVal: last }); } } else if (watch === lastDirtyWatch) { // If the most recently dirty watcher is now clean, short circuit since the remaining watchers // have already been tested. dirty = false; break traverseScopesLoop; } } } catch (e) { $exceptionHandler(e); } } } // Insanity Warning: scope depth-first traversal // yes, this code is a bit crazy, but it works and we have tests to prove it! // this piece should be kept in sync with the traversal in $broadcast if (!(next = ((current.$$watchersCount && current.$$childHead) || (current !== target && current.$$nextSibling)))) { while (current !== target && !(next = current.$$nextSibling)) { current = current.$parent; } } } while ((current = next)); // `break traverseScopesLoop;` takes us to here if ((dirty || asyncQueue.length) && !(ttl--)) { clearPhase(); throw $rootScopeMinErr('infdig', '{0} $digest() iterations reached. Aborting!\n' + 'Watchers fired in the last 5 iterations: {1}', TTL, watchLog); } } while (dirty || asyncQueue.length); clearPhase(); // postDigestQueuePosition isn't local here because this loop can be reentered recursively. while (postDigestQueuePosition < postDigestQueue.length) { try { postDigestQueue[postDigestQueuePosition++](); } catch (e) { $exceptionHandler(e); } } postDigestQueue.length = postDigestQueuePosition = 0; }, /** * @ngdoc event * @name $rootScope.Scope#$destroy * @eventType broadcast on scope being destroyed * * @description * Broadcasted when a scope and its children are being destroyed. * * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to * clean up DOM bindings before an element is removed from the DOM. */ /** * @ngdoc method * @name $rootScope.Scope#$destroy * @kind function * * @description * Removes the current scope (and all of its children) from the parent scope. Removal implies * that calls to {@link ng.$rootScope.Scope#$digest $digest()} will no longer * propagate to the current scope and its children. Removal also implies that the current * scope is eligible for garbage collection. * * The `$destroy()` is usually used by directives such as * {@link ng.directive:ngRepeat ngRepeat} for managing the * unrolling of the loop. * * Just before a scope is destroyed, a `$destroy` event is broadcasted on this scope. * Application code can register a `$destroy` event handler that will give it a chance to * perform any necessary cleanup. * * Note that, in AngularJS, there is also a `$destroy` jQuery event, which can be used to * clean up DOM bindings before an element is removed from the DOM. */ $destroy: function() { // We can't destroy a scope that has been already destroyed. if (this.$$destroyed) return; var parent = this.$parent; this.$broadcast('$destroy'); this.$$destroyed = true; if (this === $rootScope) { //Remove handlers attached to window when $rootScope is removed $browser.$$applicationDestroyed(); } incrementWatchersCount(this, -this.$$watchersCount); for (var eventName in this.$$listenerCount) { decrementListenerCount(this, this.$$listenerCount[eventName], eventName); } // sever all the references to parent scopes (after this cleanup, the current scope should // not be retained by any of our references and should be eligible for garbage collection) if (parent && parent.$$childHead === this) parent.$$childHead = this.$$nextSibling; if (parent && parent.$$childTail === this) parent.$$childTail = this.$$prevSibling; if (this.$$prevSibling) this.$$prevSibling.$$nextSibling = this.$$nextSibling; if (this.$$nextSibling) this.$$nextSibling.$$prevSibling = this.$$prevSibling; // Disable listeners, watchers and apply/digest methods this.$destroy = this.$digest = this.$apply = this.$evalAsync = this.$applyAsync = noop; this.$on = this.$watch = this.$watchGroup = function() { return noop; }; this.$$listeners = {}; // Disconnect the next sibling to prevent `cleanUpScope` destroying those too this.$$nextSibling = null; cleanUpScope(this); }, /** * @ngdoc method * @name $rootScope.Scope#$eval * @kind function * * @description * Executes the `expression` on the current scope and returns the result. Any exceptions in * the expression are propagated (uncaught). This is useful when evaluating Angular * expressions. * * # Example * ```js var scope = ng.$rootScope.Scope(); scope.a = 1; scope.b = 2; expect(scope.$eval('a+b')).toEqual(3); expect(scope.$eval(function(scope){ return scope.a + scope.b; })).toEqual(3); * ``` * * @param {(string|function())=} expression An angular expression to be executed. * * - `string`: execute using the rules as defined in {@link guide/expression expression}. * - `function(scope)`: execute the function with the current `scope` parameter. * * @param {(object)=} locals Local variables object, useful for overriding values in scope. * @returns {*} The result of evaluating the expression. */ $eval: function(expr, locals) { return $parse(expr)(this, locals); }, /** * @ngdoc method * @name $rootScope.Scope#$evalAsync * @kind function * * @description * Executes the expression on the current scope at a later point in time. * * The `$evalAsync` makes no guarantees as to when the `expression` will be executed, only * that: * * - it will execute after the function that scheduled the evaluation (preferably before DOM * rendering). * - at least one {@link ng.$rootScope.Scope#$digest $digest cycle} will be performed after * `expression` execution. * * Any exceptions from the execution of the expression are forwarded to the * {@link ng.$exceptionHandler $exceptionHandler} service. * * __Note:__ if this function is called outside of a `$digest` cycle, a new `$digest` cycle * will be scheduled. However, it is encouraged to always call code that changes the model * from within an `$apply` call. That includes code evaluated via `$evalAsync`. * * @param {(string|function())=} expression An angular expression to be executed. * * - `string`: execute using the rules as defined in {@link guide/expression expression}. * - `function(scope)`: execute the function with the current `scope` parameter. * * @param {(object)=} locals Local variables object, useful for overriding values in scope. */ $evalAsync: function(expr, locals) { // if we are outside of an $digest loop and this is the first time we are scheduling async // task also schedule async auto-flush if (!$rootScope.$$phase && !asyncQueue.length) { $browser.defer(function() { if (asyncQueue.length) { $rootScope.$digest(); } }); } asyncQueue.push({scope: this, expression: $parse(expr), locals: locals}); }, $$postDigest: function(fn) { postDigestQueue.push(fn); }, /** * @ngdoc method * @name $rootScope.Scope#$apply * @kind function * * @description * `$apply()` is used to execute an expression in angular from outside of the angular * framework. (For example from browser DOM events, setTimeout, XHR or third party libraries). * Because we are calling into the angular framework we need to perform proper scope life * cycle of {@link ng.$exceptionHandler exception handling}, * {@link ng.$rootScope.Scope#$digest executing watches}. * * ## Life cycle * * # Pseudo-Code of `$apply()` * ```js function $apply(expr) { try { return $eval(expr); } catch (e) { $exceptionHandler(e); } finally { $root.$digest(); } } * ``` * * * Scope's `$apply()` method transitions through the following stages: * * 1. The {@link guide/expression expression} is executed using the * {@link ng.$rootScope.Scope#$eval $eval()} method. * 2. Any exceptions from the execution of the expression are forwarded to the * {@link ng.$exceptionHandler $exceptionHandler} service. * 3. The {@link ng.$rootScope.Scope#$watch watch} listeners are fired immediately after the * expression was executed using the {@link ng.$rootScope.Scope#$digest $digest()} method. * * * @param {(string|function())=} exp An angular expression to be executed. * * - `string`: execute using the rules as defined in {@link guide/expression expression}. * - `function(scope)`: execute the function with current `scope` parameter. * * @returns {*} The result of evaluating the expression. */ $apply: function(expr) { try { beginPhase('$apply'); try { return this.$eval(expr); } finally { clearPhase(); } } catch (e) { $exceptionHandler(e); } finally { try { $rootScope.$digest(); } catch (e) { $exceptionHandler(e); // eslint-disable-next-line no-unsafe-finally throw e; } } }, /** * @ngdoc method * @name $rootScope.Scope#$applyAsync * @kind function * * @description * Schedule the invocation of $apply to occur at a later time. The actual time difference * varies across browsers, but is typically around ~10 milliseconds. * * This can be used to queue up multiple expressions which need to be evaluated in the same * digest. * * @param {(string|function())=} exp An angular expression to be executed. * * - `string`: execute using the rules as defined in {@link guide/expression expression}. * - `function(scope)`: execute the function with current `scope` parameter. */ $applyAsync: function(expr) { var scope = this; if (expr) { applyAsyncQueue.push($applyAsyncExpression); } expr = $parse(expr); scheduleApplyAsync(); function $applyAsyncExpression() { scope.$eval(expr); } }, /** * @ngdoc method * @name $rootScope.Scope#$on * @kind function * * @description * Listens on events of a given type. See {@link ng.$rootScope.Scope#$emit $emit} for * discussion of event life cycle. * * The event listener function format is: `function(event, args...)`. The `event` object * passed into the listener has the following attributes: * * - `targetScope` - `{Scope}`: the scope on which the event was `$emit`-ed or * `$broadcast`-ed. * - `currentScope` - `{Scope}`: the scope that is currently handling the event. Once the * event propagates through the scope hierarchy, this property is set to null. * - `name` - `{string}`: name of the event. * - `stopPropagation` - `{function=}`: calling `stopPropagation` function will cancel * further event propagation (available only for events that were `$emit`-ed). * - `preventDefault` - `{function}`: calling `preventDefault` sets `defaultPrevented` flag * to true. * - `defaultPrevented` - `{boolean}`: true if `preventDefault` was called. * * @param {string} name Event name to listen on. * @param {function(event, ...args)} listener Function to call when the event is emitted. * @returns {function()} Returns a deregistration function for this listener. */ $on: function(name, listener) { var namedListeners = this.$$listeners[name]; if (!namedListeners) { this.$$listeners[name] = namedListeners = []; } namedListeners.push(listener); var current = this; do { if (!current.$$listenerCount[name]) { current.$$listenerCount[name] = 0; } current.$$listenerCount[name]++; } while ((current = current.$parent)); var self = this; return function() { var indexOfListener = namedListeners.indexOf(listener); if (indexOfListener !== -1) { namedListeners[indexOfListener] = null; decrementListenerCount(self, 1, name); } }; }, /** * @ngdoc method * @name $rootScope.Scope#$emit * @kind function * * @description * Dispatches an event `name` upwards through the scope hierarchy notifying the * registered {@link ng.$rootScope.Scope#$on} listeners. * * The event life cycle starts at the scope on which `$emit` was called. All * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get * notified. Afterwards, the event traverses upwards toward the root scope and calls all * registered listeners along the way. The event will stop propagating if one of the listeners * cancels it. * * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed * onto the {@link ng.$exceptionHandler $exceptionHandler} service. * * @param {string} name Event name to emit. * @param {...*} args Optional one or more arguments which will be passed onto the event listeners. * @return {Object} Event object (see {@link ng.$rootScope.Scope#$on}). */ $emit: function(name, args) { var empty = [], namedListeners, scope = this, stopPropagation = false, event = { name: name, targetScope: scope, stopPropagation: function() {stopPropagation = true;}, preventDefault: function() { event.defaultPrevented = true; }, defaultPrevented: false }, listenerArgs = concat([event], arguments, 1), i, length; do { namedListeners = scope.$$listeners[name] || empty; event.currentScope = scope; for (i = 0, length = namedListeners.length; i < length; i++) { // if listeners were deregistered, defragment the array if (!namedListeners[i]) { namedListeners.splice(i, 1); i--; length--; continue; } try { //allow all listeners attached to the current scope to run namedListeners[i].apply(null, listenerArgs); } catch (e) { $exceptionHandler(e); } } //if any listener on the current scope stops propagation, prevent bubbling if (stopPropagation) { event.currentScope = null; return event; } //traverse upwards scope = scope.$parent; } while (scope); event.currentScope = null; return event; }, /** * @ngdoc method * @name $rootScope.Scope#$broadcast * @kind function * * @description * Dispatches an event `name` downwards to all child scopes (and their children) notifying the * registered {@link ng.$rootScope.Scope#$on} listeners. * * The event life cycle starts at the scope on which `$broadcast` was called. All * {@link ng.$rootScope.Scope#$on listeners} listening for `name` event on this scope get * notified. Afterwards, the event propagates to all direct and indirect scopes of the current * scope and calls all registered listeners along the way. The event cannot be canceled. * * Any exception emitted from the {@link ng.$rootScope.Scope#$on listeners} will be passed * onto the {@link ng.$exceptionHandler $exceptionHandler} service. * * @param {string} name Event name to broadcast. * @param {...*} args Optional one or more arguments which will be passed onto the event listeners. * @return {Object} Event object, see {@link ng.$rootScope.Scope#$on} */ $broadcast: function(name, args) { var target = this, current = target, next = target, event = { name: name, targetScope: target, preventDefault: function() { event.defaultPrevented = true; }, defaultPrevented: false }; if (!target.$$listenerCount[name]) return event; var listenerArgs = concat([event], arguments, 1), listeners, i, length; //down while you can, then up and next sibling or up and next sibling until back at root while ((current = next)) { event.currentScope = current; listeners = current.$$listeners[name] || []; for (i = 0, length = listeners.length; i < length; i++) { // if listeners were deregistered, defragment the array if (!listeners[i]) { listeners.splice(i, 1); i--; length--; continue; } try { listeners[i].apply(null, listenerArgs); } catch (e) { $exceptionHandler(e); } } // Insanity Warning: scope depth-first traversal // yes, this code is a bit crazy, but it works and we have tests to prove it! // this piece should be kept in sync with the traversal in $digest // (though it differs due to having the extra check for $$listenerCount) if (!(next = ((current.$$listenerCount[name] && current.$$childHead) || (current !== target && current.$$nextSibling)))) { while (current !== target && !(next = current.$$nextSibling)) { current = current.$parent; } } } event.currentScope = null; return event; } }; var $rootScope = new Scope(); //The internal queues. Expose them on the $rootScope for debugging/testing purposes. var asyncQueue = $rootScope.$$asyncQueue = []; var postDigestQueue = $rootScope.$$postDigestQueue = []; var applyAsyncQueue = $rootScope.$$applyAsyncQueue = []; var postDigestQueuePosition = 0; return $rootScope; function beginPhase(phase) { if ($rootScope.$$phase) { throw $rootScopeMinErr('inprog', '{0} already in progress', $rootScope.$$phase); } $rootScope.$$phase = phase; } function clearPhase() { $rootScope.$$phase = null; } function incrementWatchersCount(current, count) { do { current.$$watchersCount += count; } while ((current = current.$parent)); } function decrementListenerCount(current, count, name) { do { current.$$listenerCount[name] -= count; if (current.$$listenerCount[name] === 0) { delete current.$$listenerCount[name]; } } while ((current = current.$parent)); } /** * function used as an initial value for watchers. * because it's unique we can easily tell it apart from other values */ function initWatchVal() {} function flushApplyAsync() { while (applyAsyncQueue.length) { try { applyAsyncQueue.shift()(); } catch (e) { $exceptionHandler(e); } } applyAsyncId = null; } function scheduleApplyAsync() { if (applyAsyncId === null) { applyAsyncId = $browser.defer(function() { $rootScope.$apply(flushApplyAsync); }); } } }]; } /** * @ngdoc service * @name $rootElement * * @description * The root element of Angular application. This is either the element where {@link * ng.directive:ngApp ngApp} was declared or the element passed into * {@link angular.bootstrap}. The element represents the root element of application. It is also the * location where the application's {@link auto.$injector $injector} service gets * published, and can be retrieved using `$rootElement.injector()`. */ // the implementation is in angular.bootstrap /** * @this * @description * Private service to sanitize uris for links and images. Used by $compile and $sanitize. */ function $$SanitizeUriProvider() { var aHrefSanitizationWhitelist = /^\s*(https?|ftp|mailto|tel|file):/, imgSrcSanitizationWhitelist = /^\s*((https?|ftp|file|blob):|data:image\/)/; /** * @description * Retrieves or overrides the default regular expression that is used for whitelisting of safe * urls during a[href] sanitization. * * The sanitization is a security measure aimed at prevent XSS attacks via html links. * * Any url about to be assigned to a[href] via data-binding is first normalized and turned into * an absolute url. Afterwards, the url is matched against the `aHrefSanitizationWhitelist` * regular expression. If a match is found, the original url is written into the dom. Otherwise, * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM. * * @param {RegExp=} regexp New regexp to whitelist urls with. * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for * chaining otherwise. */ this.aHrefSanitizationWhitelist = function(regexp) { if (isDefined(regexp)) { aHrefSanitizationWhitelist = regexp; return this; } return aHrefSanitizationWhitelist; }; /** * @description * Retrieves or overrides the default regular expression that is used for whitelisting of safe * urls during img[src] sanitization. * * The sanitization is a security measure aimed at prevent XSS attacks via html links. * * Any url about to be assigned to img[src] via data-binding is first normalized and turned into * an absolute url. Afterwards, the url is matched against the `imgSrcSanitizationWhitelist` * regular expression. If a match is found, the original url is written into the dom. Otherwise, * the absolute url is prefixed with `'unsafe:'` string and only then is it written into the DOM. * * @param {RegExp=} regexp New regexp to whitelist urls with. * @returns {RegExp|ng.$compileProvider} Current RegExp if called without value or self for * chaining otherwise. */ this.imgSrcSanitizationWhitelist = function(regexp) { if (isDefined(regexp)) { imgSrcSanitizationWhitelist = regexp; return this; } return imgSrcSanitizationWhitelist; }; this.$get = function() { return function sanitizeUri(uri, isImage) { var regex = isImage ? imgSrcSanitizationWhitelist : aHrefSanitizationWhitelist; var normalizedVal; normalizedVal = urlResolve(uri).href; if (normalizedVal !== '' && !normalizedVal.match(regex)) { return 'unsafe:' + normalizedVal; } return uri; }; }; } /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Any commits to this file should be reviewed with security in mind. * * Changes to this file can potentially create security vulnerabilities. * * An approval from 2 Core members with history of modifying * * this file is required. * * * * Does the change somehow allow for arbitrary javascript to be executed? * * Or allows for someone to change the prototype of built-in objects? * * Or gives undesired access to variables likes document or window? * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ /* exported $SceProvider, $SceDelegateProvider */ var $sceMinErr = minErr('$sce'); var SCE_CONTEXTS = { HTML: 'html', CSS: 'css', URL: 'url', // RESOURCE_URL is a subtype of URL used in contexts where a privileged resource is sourced from a // url. (e.g. ng-include, script src, templateUrl) RESOURCE_URL: 'resourceUrl', JS: 'js' }; // Helper functions follow. var UNDERSCORE_LOWERCASE_REGEXP = /_([a-z])/g; function snakeToCamel(name) { return name .replace(UNDERSCORE_LOWERCASE_REGEXP, fnCamelCaseReplace); } function adjustMatcher(matcher) { if (matcher === 'self') { return matcher; } else if (isString(matcher)) { // Strings match exactly except for 2 wildcards - '*' and '**'. // '*' matches any character except those from the set ':/.?&'. // '**' matches any character (like .* in a RegExp). // More than 2 *'s raises an error as it's ill defined. if (matcher.indexOf('***') > -1) { throw $sceMinErr('iwcard', 'Illegal sequence *** in string matcher. String: {0}', matcher); } matcher = escapeForRegexp(matcher). replace(/\\\*\\\*/g, '.*'). replace(/\\\*/g, '[^:/.?&;]*'); return new RegExp('^' + matcher + '$'); } else if (isRegExp(matcher)) { // The only other type of matcher allowed is a Regexp. // Match entire URL / disallow partial matches. // Flags are reset (i.e. no global, ignoreCase or multiline) return new RegExp('^' + matcher.source + '$'); } else { throw $sceMinErr('imatcher', 'Matchers may only be "self", string patterns or RegExp objects'); } } function adjustMatchers(matchers) { var adjustedMatchers = []; if (isDefined(matchers)) { forEach(matchers, function(matcher) { adjustedMatchers.push(adjustMatcher(matcher)); }); } return adjustedMatchers; } /** * @ngdoc service * @name $sceDelegate * @kind function * * @description * * `$sceDelegate` is a service that is used by the `$sce` service to provide {@link ng.$sce Strict * Contextual Escaping (SCE)} services to AngularJS. * * Typically, you would configure or override the {@link ng.$sceDelegate $sceDelegate} instead of * the `$sce` service to customize the way Strict Contextual Escaping works in AngularJS. This is * because, while the `$sce` provides numerous shorthand methods, etc., you really only need to * override 3 core functions (`trustAs`, `getTrusted` and `valueOf`) to replace the way things * work because `$sce` delegates to `$sceDelegate` for these operations. * * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} to configure this service. * * The default instance of `$sceDelegate` should work out of the box with little pain. While you * can override it completely to change the behavior of `$sce`, the common case would * involve configuring the {@link ng.$sceDelegateProvider $sceDelegateProvider} instead by setting * your own whitelists and blacklists for trusting URLs used for loading AngularJS resources such as * templates. Refer {@link ng.$sceDelegateProvider#resourceUrlWhitelist * $sceDelegateProvider.resourceUrlWhitelist} and {@link * ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist} */ /** * @ngdoc provider * @name $sceDelegateProvider * @this * * @description * * The `$sceDelegateProvider` provider allows developers to configure the {@link ng.$sceDelegate * $sceDelegate} service. This allows one to get/set the whitelists and blacklists used to ensure * that the URLs used for sourcing Angular templates are safe. Refer {@link * ng.$sceDelegateProvider#resourceUrlWhitelist $sceDelegateProvider.resourceUrlWhitelist} and * {@link ng.$sceDelegateProvider#resourceUrlBlacklist $sceDelegateProvider.resourceUrlBlacklist} * * For the general details about this service in Angular, read the main page for {@link ng.$sce * Strict Contextual Escaping (SCE)}. * * **Example**: Consider the following case. * * - your app is hosted at url `http://myapp.example.com/` * - but some of your templates are hosted on other domains you control such as * `http://srv01.assets.example.com/`, `http://srv02.assets.example.com/`, etc. * - and you have an open redirect at `http://myapp.example.com/clickThru?...`. * * Here is what a secure configuration for this scenario might look like: * * ``` * angular.module('myApp', []).config(function($sceDelegateProvider) { * $sceDelegateProvider.resourceUrlWhitelist([ * // Allow same origin resource loads. * 'self', * // Allow loading from our assets domain. Notice the difference between * and **. * 'http://srv*.assets.example.com/**' * ]); * * // The blacklist overrides the whitelist so the open redirect here is blocked. * $sceDelegateProvider.resourceUrlBlacklist([ * 'http://myapp.example.com/clickThru**' * ]); * }); * ``` */ function $SceDelegateProvider() { this.SCE_CONTEXTS = SCE_CONTEXTS; // Resource URLs can also be trusted by policy. var resourceUrlWhitelist = ['self'], resourceUrlBlacklist = []; /** * @ngdoc method * @name $sceDelegateProvider#resourceUrlWhitelist * @kind function * * @param {Array=} whitelist When provided, replaces the resourceUrlWhitelist with the value * provided. This must be an array or null. A snapshot of this array is used so further * changes to the array are ignored. * * Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items * allowed in this array. * *
* **Note:** an empty whitelist array will block all URLs! *
* * @return {Array} the currently set whitelist array. * * The **default value** when no whitelist has been explicitly set is `['self']` allowing only * same origin resource requests. * * @description * Sets/Gets the whitelist of trusted resource URLs. */ this.resourceUrlWhitelist = function(value) { if (arguments.length) { resourceUrlWhitelist = adjustMatchers(value); } return resourceUrlWhitelist; }; /** * @ngdoc method * @name $sceDelegateProvider#resourceUrlBlacklist * @kind function * * @param {Array=} blacklist When provided, replaces the resourceUrlBlacklist with the value * provided. This must be an array or null. A snapshot of this array is used so further * changes to the array are ignored. * * Follow {@link ng.$sce#resourceUrlPatternItem this link} for a description of the items * allowed in this array. * * The typical usage for the blacklist is to **block * [open redirects](http://cwe.mitre.org/data/definitions/601.html)** served by your domain as * these would otherwise be trusted but actually return content from the redirected domain. * * Finally, **the blacklist overrides the whitelist** and has the final say. * * @return {Array} the currently set blacklist array. * * The **default value** when no whitelist has been explicitly set is the empty array (i.e. there * is no blacklist.) * * @description * Sets/Gets the blacklist of trusted resource URLs. */ this.resourceUrlBlacklist = function(value) { if (arguments.length) { resourceUrlBlacklist = adjustMatchers(value); } return resourceUrlBlacklist; }; this.$get = ['$injector', function($injector) { var htmlSanitizer = function htmlSanitizer(html) { throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.'); }; if ($injector.has('$sanitize')) { htmlSanitizer = $injector.get('$sanitize'); } function matchUrl(matcher, parsedUrl) { if (matcher === 'self') { return urlIsSameOrigin(parsedUrl); } else { // definitely a regex. See adjustMatchers() return !!matcher.exec(parsedUrl.href); } } function isResourceUrlAllowedByPolicy(url) { var parsedUrl = urlResolve(url.toString()); var i, n, allowed = false; // Ensure that at least one item from the whitelist allows this url. for (i = 0, n = resourceUrlWhitelist.length; i < n; i++) { if (matchUrl(resourceUrlWhitelist[i], parsedUrl)) { allowed = true; break; } } if (allowed) { // Ensure that no item from the blacklist blocked this url. for (i = 0, n = resourceUrlBlacklist.length; i < n; i++) { if (matchUrl(resourceUrlBlacklist[i], parsedUrl)) { allowed = false; break; } } } return allowed; } function generateHolderType(Base) { var holderType = function TrustedValueHolderType(trustedValue) { this.$$unwrapTrustedValue = function() { return trustedValue; }; }; if (Base) { holderType.prototype = new Base(); } holderType.prototype.valueOf = function sceValueOf() { return this.$$unwrapTrustedValue(); }; holderType.prototype.toString = function sceToString() { return this.$$unwrapTrustedValue().toString(); }; return holderType; } var trustedValueHolderBase = generateHolderType(), byType = {}; byType[SCE_CONTEXTS.HTML] = generateHolderType(trustedValueHolderBase); byType[SCE_CONTEXTS.CSS] = generateHolderType(trustedValueHolderBase); byType[SCE_CONTEXTS.URL] = generateHolderType(trustedValueHolderBase); byType[SCE_CONTEXTS.JS] = generateHolderType(trustedValueHolderBase); byType[SCE_CONTEXTS.RESOURCE_URL] = generateHolderType(byType[SCE_CONTEXTS.URL]); /** * @ngdoc method * @name $sceDelegate#trustAs * * @description * Returns an object that is trusted by angular for use in specified strict * contextual escaping contexts (such as ng-bind-html, ng-include, any src * attribute interpolation, any dom event binding attribute interpolation * such as for onclick, etc.) that uses the provided value. * See {@link ng.$sce $sce} for enabling strict contextual escaping. * * @param {string} type The kind of context in which this value is safe for use. e.g. url, * resourceUrl, html, js and css. * @param {*} value The value that that should be considered trusted/safe. * @returns {*} A value that can be used to stand in for the provided `value` in places * where Angular expects a $sce.trustAs() return value. */ function trustAs(type, trustedValue) { var Constructor = (byType.hasOwnProperty(type) ? byType[type] : null); if (!Constructor) { throw $sceMinErr('icontext', 'Attempted to trust a value in invalid context. Context: {0}; Value: {1}', type, trustedValue); } if (trustedValue === null || isUndefined(trustedValue) || trustedValue === '') { return trustedValue; } // All the current contexts in SCE_CONTEXTS happen to be strings. In order to avoid trusting // mutable objects, we ensure here that the value passed in is actually a string. if (typeof trustedValue !== 'string') { throw $sceMinErr('itype', 'Attempted to trust a non-string value in a content requiring a string: Context: {0}', type); } return new Constructor(trustedValue); } /** * @ngdoc method * @name $sceDelegate#valueOf * * @description * If the passed parameter had been returned by a prior call to {@link ng.$sceDelegate#trustAs * `$sceDelegate.trustAs`}, returns the value that had been passed to {@link * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}. * * If the passed parameter is not a value that had been returned by {@link * ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}, returns it as-is. * * @param {*} value The result of a prior {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} * call or anything else. * @returns {*} The `value` that was originally provided to {@link ng.$sceDelegate#trustAs * `$sceDelegate.trustAs`} if `value` is the result of such a call. Otherwise, returns * `value` unchanged. */ function valueOf(maybeTrusted) { if (maybeTrusted instanceof trustedValueHolderBase) { return maybeTrusted.$$unwrapTrustedValue(); } else { return maybeTrusted; } } /** * @ngdoc method * @name $sceDelegate#getTrusted * * @description * Takes the result of a {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`} call and * returns the originally supplied value if the queried context type is a supertype of the * created type. If this condition isn't satisfied, throws an exception. * *
* Disabling auto-escaping is extremely dangerous, it usually creates a Cross Site Scripting * (XSS) vulnerability in your application. *
* * @param {string} type The kind of context in which this value is to be used. * @param {*} maybeTrusted The result of a prior {@link ng.$sceDelegate#trustAs * `$sceDelegate.trustAs`} call. * @returns {*} The value the was originally provided to {@link ng.$sceDelegate#trustAs * `$sceDelegate.trustAs`} if valid in this context. Otherwise, throws an exception. */ function getTrusted(type, maybeTrusted) { if (maybeTrusted === null || isUndefined(maybeTrusted) || maybeTrusted === '') { return maybeTrusted; } var constructor = (byType.hasOwnProperty(type) ? byType[type] : null); if (constructor && maybeTrusted instanceof constructor) { return maybeTrusted.$$unwrapTrustedValue(); } // If we get here, then we may only take one of two actions. // 1. sanitize the value for the requested type, or // 2. throw an exception. if (type === SCE_CONTEXTS.RESOURCE_URL) { if (isResourceUrlAllowedByPolicy(maybeTrusted)) { return maybeTrusted; } else { throw $sceMinErr('insecurl', 'Blocked loading resource from url not allowed by $sceDelegate policy. URL: {0}', maybeTrusted.toString()); } } else if (type === SCE_CONTEXTS.HTML) { return htmlSanitizer(maybeTrusted); } throw $sceMinErr('unsafe', 'Attempting to use an unsafe value in a safe context.'); } return { trustAs: trustAs, getTrusted: getTrusted, valueOf: valueOf }; }]; } /** * @ngdoc provider * @name $sceProvider * @this * * @description * * The $sceProvider provider allows developers to configure the {@link ng.$sce $sce} service. * - enable/disable Strict Contextual Escaping (SCE) in a module * - override the default implementation with a custom delegate * * Read more about {@link ng.$sce Strict Contextual Escaping (SCE)}. */ /** * @ngdoc service * @name $sce * @kind function * * @description * * `$sce` is a service that provides Strict Contextual Escaping services to AngularJS. * * # Strict Contextual Escaping * * Strict Contextual Escaping (SCE) is a mode in which AngularJS requires bindings in certain * contexts to result in a value that is marked as safe to use for that context. One example of * such a context is binding arbitrary html controlled by the user via `ng-bind-html`. We refer * to these contexts as privileged or SCE contexts. * * As of version 1.2, Angular ships with SCE enabled by default. * * Note: When enabled (the default), IE<11 in quirks mode is not supported. In this mode, IE<11 allow * one to execute arbitrary javascript by the use of the expression() syntax. Refer * to learn more about them. * You can ensure your document is in standards mode and not quirks mode by adding `` * to the top of your HTML document. * * SCE assists in writing code in a way that (a) is secure by default and (b) makes auditing for * security vulnerabilities such as XSS, clickjacking, etc. a lot easier. * * Here's an example of a binding in a privileged context: * * ``` * *
* ``` * * Notice that `ng-bind-html` is bound to `userHtml` controlled by the user. With SCE * disabled, this application allows the user to render arbitrary HTML into the DIV. * In a more realistic example, one may be rendering user comments, blog articles, etc. via * bindings. (HTML is just one example of a context where rendering user controlled input creates * security vulnerabilities.) * * For the case of HTML, you might use a library, either on the client side, or on the server side, * to sanitize unsafe HTML before binding to the value and rendering it in the document. * * How would you ensure that every place that used these types of bindings was bound to a value that * was sanitized by your library (or returned as safe for rendering by your server?) How can you * ensure that you didn't accidentally delete the line that sanitized the value, or renamed some * properties/fields and forgot to update the binding to the sanitized value? * * To be secure by default, you want to ensure that any such bindings are disallowed unless you can * determine that something explicitly says it's safe to use a value for binding in that * context. You can then audit your code (a simple grep would do) to ensure that this is only done * for those values that you can easily tell are safe - because they were received from your server, * sanitized by your library, etc. You can organize your codebase to help with this - perhaps * allowing only the files in a specific directory to do this. Ensuring that the internal API * exposed by that code doesn't markup arbitrary values as safe then becomes a more manageable task. * * In the case of AngularJS' SCE service, one uses {@link ng.$sce#trustAs $sce.trustAs} * (and shorthand methods such as {@link ng.$sce#trustAsHtml $sce.trustAsHtml}, etc.) to * obtain values that will be accepted by SCE / privileged contexts. * * * ## How does it work? * * In privileged contexts, directives and code will bind to the result of {@link ng.$sce#getTrusted * $sce.getTrusted(context, value)} rather than to the value directly. Directives use {@link * ng.$sce#parseAs $sce.parseAs} rather than `$parse` to watch attribute bindings, which performs the * {@link ng.$sce#getTrusted $sce.getTrusted} behind the scenes on non-constant literals. * * As an example, {@link ng.directive:ngBindHtml ngBindHtml} uses {@link * ng.$sce#parseAsHtml $sce.parseAsHtml(binding expression)}. Here's the actual code (slightly * simplified): * * ``` * var ngBindHtmlDirective = ['$sce', function($sce) { * return function(scope, element, attr) { * scope.$watch($sce.parseAsHtml(attr.ngBindHtml), function(value) { * element.html(value || ''); * }); * }; * }]; * ``` * * ## Impact on loading templates * * This applies both to the {@link ng.directive:ngInclude `ng-include`} directive as well as * `templateUrl`'s specified by {@link guide/directive directives}. * * By default, Angular only loads templates from the same domain and protocol as the application * document. This is done by calling {@link ng.$sce#getTrustedResourceUrl * $sce.getTrustedResourceUrl} on the template URL. To load templates from other domains and/or * protocols, you may either {@link ng.$sceDelegateProvider#resourceUrlWhitelist whitelist * them} or {@link ng.$sce#trustAsResourceUrl wrap it} into a trusted value. * * *Please note*: * The browser's * [Same Origin Policy](https://code.google.com/p/browsersec/wiki/Part2#Same-origin_policy_for_XMLHttpRequest) * and [Cross-Origin Resource Sharing (CORS)](http://www.w3.org/TR/cors/) * policy apply in addition to this and may further restrict whether the template is successfully * loaded. This means that without the right CORS policy, loading templates from a different domain * won't work on all browsers. Also, loading templates from `file://` URL does not work on some * browsers. * * ## This feels like too much overhead * * It's important to remember that SCE only applies to interpolation expressions. * * If your expressions are constant literals, they're automatically trusted and you don't need to * call `$sce.trustAs` on them (remember to include the `ngSanitize` module) (e.g. * `
`) just works. * * Additionally, `a[href]` and `img[src]` automatically sanitize their URLs and do not pass them * through {@link ng.$sce#getTrusted $sce.getTrusted}. SCE doesn't play a role here. * * The included {@link ng.$sceDelegate $sceDelegate} comes with sane defaults to allow you to load * templates in `ng-include` from your application's domain without having to even know about SCE. * It blocks loading templates from other domains or loading templates over http from an https * served document. You can change these by setting your own custom {@link * ng.$sceDelegateProvider#resourceUrlWhitelist whitelists} and {@link * ng.$sceDelegateProvider#resourceUrlBlacklist blacklists} for matching such URLs. * * This significantly reduces the overhead. It is far easier to pay the small overhead and have an * application that's secure and can be audited to verify that with much more ease than bolting * security onto an application later. * * * ## What trusted context types are supported? * * | Context | Notes | * |---------------------|----------------| * | `$sce.HTML` | For HTML that's safe to source into the application. The {@link ng.directive:ngBindHtml ngBindHtml} directive uses this context for bindings. If an unsafe value is encountered and the {@link ngSanitize $sanitize} module is present this will sanitize the value instead of throwing an error. | * | `$sce.CSS` | For CSS that's safe to source into the application. Currently unused. Feel free to use it in your own directives. | * | `$sce.URL` | For URLs that are safe to follow as links. Currently unused (`
Note that `$sce.RESOURCE_URL` makes a stronger statement about the URL than `$sce.URL` does and therefore contexts requiring values trusted for `$sce.RESOURCE_URL` can be used anywhere that values trusted for `$sce.URL` are required. | * | `$sce.JS` | For JavaScript that is safe to execute in your application's context. Currently unused. Feel free to use it in your own directives. | * * ## Format of items in {@link ng.$sceDelegateProvider#resourceUrlWhitelist resourceUrlWhitelist}/{@link ng.$sceDelegateProvider#resourceUrlBlacklist Blacklist} * * Each element in these arrays must be one of the following: * * - **'self'** * - The special **string**, `'self'`, can be used to match against all URLs of the **same * domain** as the application document using the **same protocol**. * - **String** (except the special value `'self'`) * - The string is matched against the full *normalized / absolute URL* of the resource * being tested (substring matches are not good enough.) * - There are exactly **two wildcard sequences** - `*` and `**`. All other characters * match themselves. * - `*`: matches zero or more occurrences of any character other than one of the following 6 * characters: '`:`', '`/`', '`.`', '`?`', '`&`' and '`;`'. It's a useful wildcard for use * in a whitelist. * - `**`: matches zero or more occurrences of *any* character. As such, it's not * appropriate for use in a scheme, domain, etc. as it would match too much. (e.g. * http://**.example.com/ would match http://evil.com/?ignore=.example.com/ and that might * not have been the intention.) Its usage at the very end of the path is ok. (e.g. * http://foo.example.com/templates/**). * - **RegExp** (*see caveat below*) * - *Caveat*: While regular expressions are powerful and offer great flexibility, their syntax * (and all the inevitable escaping) makes them *harder to maintain*. It's easy to * accidentally introduce a bug when one updates a complex expression (imho, all regexes should * have good test coverage). For instance, the use of `.` in the regex is correct only in a * small number of cases. A `.` character in the regex used when matching the scheme or a * subdomain could be matched against a `:` or literal `.` that was likely not intended. It * is highly recommended to use the string patterns and only fall back to regular expressions * as a last resort. * - The regular expression must be an instance of RegExp (i.e. not a string.) It is * matched against the **entire** *normalized / absolute URL* of the resource being tested * (even when the RegExp did not have the `^` and `$` codes.) In addition, any flags * present on the RegExp (such as multiline, global, ignoreCase) are ignored. * - If you are generating your JavaScript from some other templating engine (not * recommended, e.g. in issue [#4006](https://github.com/angular/angular.js/issues/4006)), * remember to escape your regular expression (and be aware that you might need more than * one level of escaping depending on your templating engine and the way you interpolated * the value.) Do make use of your platform's escaping mechanism as it might be good * enough before coding your own. E.g. Ruby has * [Regexp.escape(str)](http://www.ruby-doc.org/core-2.0.0/Regexp.html#method-c-escape) * and Python has [re.escape](http://docs.python.org/library/re.html#re.escape). * Javascript lacks a similar built in function for escaping. Take a look at Google * Closure library's [goog.string.regExpEscape(s)]( * http://docs.closure-library.googlecode.com/git/closure_goog_string_string.js.source.html#line962). * * Refer {@link ng.$sceDelegateProvider $sceDelegateProvider} for an example. * * ## Show me an example using SCE. * * * *
*

* User comments
* By default, HTML that isn't explicitly trusted (e.g. Alice's comment) is sanitized when * $sanitize is available. If $sanitize isn't available, this results in an error instead of an * exploit. *
*
* {{userComment.name}}: * *
*
*
*
* * * * angular.module('mySceApp', ['ngSanitize']) * .controller('AppController', ['$http', '$templateCache', '$sce', * function AppController($http, $templateCache, $sce) { * var self = this; * $http.get('test_data.json', {cache: $templateCache}).then(function(response) { * self.userComments = response.data; * }); * self.explicitlyTrustedHtml = $sce.trustAsHtml( * 'Hover over this text.'); * }]); * * * * [ * { "name": "Alice", * "htmlComment": * "Is anyone reading this?" * }, * { "name": "Bob", * "htmlComment": "Yes! Am I the only other one?" * } * ] * * * * describe('SCE doc demo', function() { * it('should sanitize untrusted values', function() { * expect(element.all(by.css('.htmlComment')).first().getAttribute('innerHTML')) * .toBe('Is anyone reading this?'); * }); * * it('should NOT sanitize explicitly trusted values', function() { * expect(element(by.id('explicitlyTrustedHtml')).getAttribute('innerHTML')).toBe( * 'Hover over this text.'); * }); * }); * * * * * * ## Can I disable SCE completely? * * Yes, you can. However, this is strongly discouraged. SCE gives you a lot of security benefits * for little coding overhead. It will be much harder to take an SCE disabled application and * either secure it on your own or enable SCE at a later stage. It might make sense to disable SCE * for cases where you have a lot of existing code that was written before SCE was introduced and * you're migrating them a module at a time. * * That said, here's how you can completely disable SCE: * * ``` * angular.module('myAppWithSceDisabledmyApp', []).config(function($sceProvider) { * // Completely disable SCE. For demonstration purposes only! * // Do not use in new projects. * $sceProvider.enabled(false); * }); * ``` * */ function $SceProvider() { var enabled = true; /** * @ngdoc method * @name $sceProvider#enabled * @kind function * * @param {boolean=} value If provided, then enables/disables SCE. * @return {boolean} true if SCE is enabled, false otherwise. * * @description * Enables/disables SCE and returns the current value. */ this.enabled = function(value) { if (arguments.length) { enabled = !!value; } return enabled; }; /* Design notes on the default implementation for SCE. * * The API contract for the SCE delegate * ------------------------------------- * The SCE delegate object must provide the following 3 methods: * * - trustAs(contextEnum, value) * This method is used to tell the SCE service that the provided value is OK to use in the * contexts specified by contextEnum. It must return an object that will be accepted by * getTrusted() for a compatible contextEnum and return this value. * * - valueOf(value) * For values that were not produced by trustAs(), return them as is. For values that were * produced by trustAs(), return the corresponding input value to trustAs. Basically, if * trustAs is wrapping the given values into some type, this operation unwraps it when given * such a value. * * - getTrusted(contextEnum, value) * This function should return the a value that is safe to use in the context specified by * contextEnum or throw and exception otherwise. * * NOTE: This contract deliberately does NOT state that values returned by trustAs() must be * opaque or wrapped in some holder object. That happens to be an implementation detail. For * instance, an implementation could maintain a registry of all trusted objects by context. In * such a case, trustAs() would return the same object that was passed in. getTrusted() would * return the same object passed in if it was found in the registry under a compatible context or * throw an exception otherwise. An implementation might only wrap values some of the time based * on some criteria. getTrusted() might return a value and not throw an exception for special * constants or objects even if not wrapped. All such implementations fulfill this contract. * * * A note on the inheritance model for SCE contexts * ------------------------------------------------ * I've used inheritance and made RESOURCE_URL wrapped types a subtype of URL wrapped types. This * is purely an implementation details. * * The contract is simply this: * * getTrusted($sce.RESOURCE_URL, value) succeeding implies that getTrusted($sce.URL, value) * will also succeed. * * Inheritance happens to capture this in a natural way. In some future, we * may not use inheritance anymore. That is OK because no code outside of * sce.js and sceSpecs.js would need to be aware of this detail. */ this.$get = ['$parse', '$sceDelegate', function( $parse, $sceDelegate) { // Support: IE 9-11 only // Prereq: Ensure that we're not running in IE<11 quirks mode. In that mode, IE < 11 allow // the "expression(javascript expression)" syntax which is insecure. if (enabled && msie < 8) { throw $sceMinErr('iequirks', 'Strict Contextual Escaping does not support Internet Explorer version < 11 in quirks ' + 'mode. You can fix this by adding the text to the top of your HTML ' + 'document. See http://docs.angularjs.org/api/ng.$sce for more information.'); } var sce = shallowCopy(SCE_CONTEXTS); /** * @ngdoc method * @name $sce#isEnabled * @kind function * * @return {Boolean} true if SCE is enabled, false otherwise. If you want to set the value, you * have to do it at module config time on {@link ng.$sceProvider $sceProvider}. * * @description * Returns a boolean indicating if SCE is enabled. */ sce.isEnabled = function() { return enabled; }; sce.trustAs = $sceDelegate.trustAs; sce.getTrusted = $sceDelegate.getTrusted; sce.valueOf = $sceDelegate.valueOf; if (!enabled) { sce.trustAs = sce.getTrusted = function(type, value) { return value; }; sce.valueOf = identity; } /** * @ngdoc method * @name $sce#parseAs * * @description * Converts Angular {@link guide/expression expression} into a function. This is like {@link * ng.$parse $parse} and is identical when the expression is a literal constant. Otherwise, it * wraps the expression in a call to {@link ng.$sce#getTrusted $sce.getTrusted(*type*, * *result*)} * * @param {string} type The kind of SCE context in which this result will be used. * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ sce.parseAs = function sceParseAs(type, expr) { var parsed = $parse(expr); if (parsed.literal && parsed.constant) { return parsed; } else { return $parse(expr, function(value) { return sce.getTrusted(type, value); }); } }; /** * @ngdoc method * @name $sce#trustAs * * @description * Delegates to {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs`}. As such, * returns an object that is trusted by angular for use in specified strict contextual * escaping contexts (such as ng-bind-html, ng-include, any src attribute * interpolation, any dom event binding attribute interpolation such as for onclick, etc.) * that uses the provided value. See * {@link ng.$sce $sce} for enabling strict contextual * escaping. * * @param {string} type The kind of context in which this value is safe for use. e.g. url, * resourceUrl, html, js and css. * @param {*} value The value that that should be considered trusted/safe. * @returns {*} A value that can be used to stand in for the provided `value` in places * where Angular expects a $sce.trustAs() return value. */ /** * @ngdoc method * @name $sce#trustAsHtml * * @description * Shorthand method. `$sce.trustAsHtml(value)` → * {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.HTML, value)`} * * @param {*} value The value to trustAs. * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedHtml * $sce.getTrustedHtml(value)} to obtain the original value. (privileged directives * only accept expressions that are either literal constants or are the * return value of {@link ng.$sce#trustAs $sce.trustAs}.) */ /** * @ngdoc method * @name $sce#trustAsUrl * * @description * Shorthand method. `$sce.trustAsUrl(value)` → * {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.URL, value)`} * * @param {*} value The value to trustAs. * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedUrl * $sce.getTrustedUrl(value)} to obtain the original value. (privileged directives * only accept expressions that are either literal constants or are the * return value of {@link ng.$sce#trustAs $sce.trustAs}.) */ /** * @ngdoc method * @name $sce#trustAsResourceUrl * * @description * Shorthand method. `$sce.trustAsResourceUrl(value)` → * {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.RESOURCE_URL, value)`} * * @param {*} value The value to trustAs. * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedResourceUrl * $sce.getTrustedResourceUrl(value)} to obtain the original value. (privileged directives * only accept expressions that are either literal constants or are the return * value of {@link ng.$sce#trustAs $sce.trustAs}.) */ /** * @ngdoc method * @name $sce#trustAsJs * * @description * Shorthand method. `$sce.trustAsJs(value)` → * {@link ng.$sceDelegate#trustAs `$sceDelegate.trustAs($sce.JS, value)`} * * @param {*} value The value to trustAs. * @returns {*} An object that can be passed to {@link ng.$sce#getTrustedJs * $sce.getTrustedJs(value)} to obtain the original value. (privileged directives * only accept expressions that are either literal constants or are the * return value of {@link ng.$sce#trustAs $sce.trustAs}.) */ /** * @ngdoc method * @name $sce#getTrusted * * @description * Delegates to {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted`}. As such, * takes the result of a {@link ng.$sce#trustAs `$sce.trustAs`}() call and returns the * originally supplied value if the queried context type is a supertype of the created type. * If this condition isn't satisfied, throws an exception. * * @param {string} type The kind of context in which this value is to be used. * @param {*} maybeTrusted The result of a prior {@link ng.$sce#trustAs `$sce.trustAs`} * call. * @returns {*} The value the was originally provided to * {@link ng.$sce#trustAs `$sce.trustAs`} if valid in this context. * Otherwise, throws an exception. */ /** * @ngdoc method * @name $sce#getTrustedHtml * * @description * Shorthand method. `$sce.getTrustedHtml(value)` → * {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.HTML, value)`} * * @param {*} value The value to pass to `$sce.getTrusted`. * @returns {*} The return value of `$sce.getTrusted($sce.HTML, value)` */ /** * @ngdoc method * @name $sce#getTrustedCss * * @description * Shorthand method. `$sce.getTrustedCss(value)` → * {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.CSS, value)`} * * @param {*} value The value to pass to `$sce.getTrusted`. * @returns {*} The return value of `$sce.getTrusted($sce.CSS, value)` */ /** * @ngdoc method * @name $sce#getTrustedUrl * * @description * Shorthand method. `$sce.getTrustedUrl(value)` → * {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.URL, value)`} * * @param {*} value The value to pass to `$sce.getTrusted`. * @returns {*} The return value of `$sce.getTrusted($sce.URL, value)` */ /** * @ngdoc method * @name $sce#getTrustedResourceUrl * * @description * Shorthand method. `$sce.getTrustedResourceUrl(value)` → * {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.RESOURCE_URL, value)`} * * @param {*} value The value to pass to `$sceDelegate.getTrusted`. * @returns {*} The return value of `$sce.getTrusted($sce.RESOURCE_URL, value)` */ /** * @ngdoc method * @name $sce#getTrustedJs * * @description * Shorthand method. `$sce.getTrustedJs(value)` → * {@link ng.$sceDelegate#getTrusted `$sceDelegate.getTrusted($sce.JS, value)`} * * @param {*} value The value to pass to `$sce.getTrusted`. * @returns {*} The return value of `$sce.getTrusted($sce.JS, value)` */ /** * @ngdoc method * @name $sce#parseAsHtml * * @description * Shorthand method. `$sce.parseAsHtml(expression string)` → * {@link ng.$sce#parseAs `$sce.parseAs($sce.HTML, value)`} * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ /** * @ngdoc method * @name $sce#parseAsCss * * @description * Shorthand method. `$sce.parseAsCss(value)` → * {@link ng.$sce#parseAs `$sce.parseAs($sce.CSS, value)`} * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ /** * @ngdoc method * @name $sce#parseAsUrl * * @description * Shorthand method. `$sce.parseAsUrl(value)` → * {@link ng.$sce#parseAs `$sce.parseAs($sce.URL, value)`} * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ /** * @ngdoc method * @name $sce#parseAsResourceUrl * * @description * Shorthand method. `$sce.parseAsResourceUrl(value)` → * {@link ng.$sce#parseAs `$sce.parseAs($sce.RESOURCE_URL, value)`} * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ /** * @ngdoc method * @name $sce#parseAsJs * * @description * Shorthand method. `$sce.parseAsJs(value)` → * {@link ng.$sce#parseAs `$sce.parseAs($sce.JS, value)`} * * @param {string} expression String expression to compile. * @returns {function(context, locals)} a function which represents the compiled expression: * * * `context` – `{object}` – an object against which any expressions embedded in the strings * are evaluated against (typically a scope object). * * `locals` – `{object=}` – local variables context object, useful for overriding values in * `context`. */ // Shorthand delegations. var parse = sce.parseAs, getTrusted = sce.getTrusted, trustAs = sce.trustAs; forEach(SCE_CONTEXTS, function(enumValue, name) { var lName = lowercase(name); sce[snakeToCamel('parse_as_' + lName)] = function(expr) { return parse(enumValue, expr); }; sce[snakeToCamel('get_trusted_' + lName)] = function(value) { return getTrusted(enumValue, value); }; sce[snakeToCamel('trust_as_' + lName)] = function(value) { return trustAs(enumValue, value); }; }); return sce; }]; } /* exported $SnifferProvider */ /** * !!! This is an undocumented "private" service !!! * * @name $sniffer * @requires $window * @requires $document * @this * * @property {boolean} history Does the browser support html5 history api ? * @property {boolean} transitions Does the browser support CSS transition events ? * @property {boolean} animations Does the browser support CSS animation events ? * * @description * This is very simple implementation of testing browser's features. */ function $SnifferProvider() { this.$get = ['$window', '$document', function($window, $document) { var eventSupport = {}, // Chrome Packaged Apps are not allowed to access `history.pushState`. // If not sandboxed, they can be detected by the presence of `chrome.app.runtime` // (see https://developer.chrome.com/apps/api_index). If sandboxed, they can be detected by // the presence of an extension runtime ID and the absence of other Chrome runtime APIs // (see https://developer.chrome.com/apps/manifest/sandbox). isChromePackagedApp = $window.chrome && ($window.chrome.app && $window.chrome.app.runtime || !$window.chrome.app && $window.chrome.runtime && $window.chrome.runtime.id), hasHistoryPushState = !isChromePackagedApp && $window.history && $window.history.pushState, android = toInt((/android (\d+)/.exec(lowercase(($window.navigator || {}).userAgent)) || [])[1]), boxee = /Boxee/i.test(($window.navigator || {}).userAgent), document = $document[0] || {}, bodyStyle = document.body && document.body.style, transitions = false, animations = false; if (bodyStyle) { // Support: Android <5, Blackberry Browser 10, default Chrome in Android 4.4.x // Mentioned browsers need a -webkit- prefix for transitions & animations. transitions = !!('transition' in bodyStyle || 'webkitTransition' in bodyStyle); animations = !!('animation' in bodyStyle || 'webkitAnimation' in bodyStyle); } return { // Android has history.pushState, but it does not update location correctly // so let's not use the history API at all. // http://code.google.com/p/android/issues/detail?id=17471 // https://github.com/angular/angular.js/issues/904 // older webkit browser (533.9) on Boxee box has exactly the same problem as Android has // so let's not use the history API also // We are purposefully using `!(android < 4)` to cover the case when `android` is undefined history: !!(hasHistoryPushState && !(android < 4) && !boxee), hasEvent: function(event) { // Support: IE 9-11 only // IE9 implements 'input' event it's so fubared that we rather pretend that it doesn't have // it. In particular the event is not fired when backspace or delete key are pressed or // when cut operation is performed. // IE10+ implements 'input' event but it erroneously fires under various situations, // e.g. when placeholder changes, or a form is focused. if (event === 'input' && msie) return false; if (isUndefined(eventSupport[event])) { var divElm = document.createElement('div'); eventSupport[event] = 'on' + event in divElm; } return eventSupport[event]; }, csp: csp(), transitions: transitions, animations: animations, android: android }; }]; } var $templateRequestMinErr = minErr('$compile'); /** * @ngdoc provider * @name $templateRequestProvider * @this * * @description * Used to configure the options passed to the {@link $http} service when making a template request. * * For example, it can be used for specifying the "Accept" header that is sent to the server, when * requesting a template. */ function $TemplateRequestProvider() { var httpOptions; /** * @ngdoc method * @name $templateRequestProvider#httpOptions * @description * The options to be passed to the {@link $http} service when making the request. * You can use this to override options such as the "Accept" header for template requests. * * The {@link $templateRequest} will set the `cache` and the `transformResponse` properties of the * options if not overridden here. * * @param {string=} value new value for the {@link $http} options. * @returns {string|self} Returns the {@link $http} options when used as getter and self if used as setter. */ this.httpOptions = function(val) { if (val) { httpOptions = val; return this; } return httpOptions; }; /** * @ngdoc service * @name $templateRequest * * @description * The `$templateRequest` service runs security checks then downloads the provided template using * `$http` and, upon success, stores the contents inside of `$templateCache`. If the HTTP request * fails or the response data of the HTTP request is empty, a `$compile` error will be thrown (the * exception can be thwarted by setting the 2nd parameter of the function to true). Note that the * contents of `$templateCache` are trusted, so the call to `$sce.getTrustedUrl(tpl)` is omitted * when `tpl` is of type string and `$templateCache` has the matching entry. * * If you want to pass custom options to the `$http` service, such as setting the Accept header you * can configure this via {@link $templateRequestProvider#httpOptions}. * * @param {string|TrustedResourceUrl} tpl The HTTP request template URL * @param {boolean=} ignoreRequestError Whether or not to ignore the exception when the request fails or the template is empty * * @return {Promise} a promise for the HTTP response data of the given URL. * * @property {number} totalPendingRequests total amount of pending template requests being downloaded. */ this.$get = ['$exceptionHandler', '$templateCache', '$http', '$q', '$sce', function($exceptionHandler, $templateCache, $http, $q, $sce) { function handleRequestFn(tpl, ignoreRequestError) { handleRequestFn.totalPendingRequests++; // We consider the template cache holds only trusted templates, so // there's no need to go through whitelisting again for keys that already // are included in there. This also makes Angular accept any script // directive, no matter its name. However, we still need to unwrap trusted // types. if (!isString(tpl) || isUndefined($templateCache.get(tpl))) { tpl = $sce.getTrustedResourceUrl(tpl); } var transformResponse = $http.defaults && $http.defaults.transformResponse; if (isArray(transformResponse)) { transformResponse = transformResponse.filter(function(transformer) { return transformer !== defaultHttpResponseTransform; }); } else if (transformResponse === defaultHttpResponseTransform) { transformResponse = null; } return $http.get(tpl, extend({ cache: $templateCache, transformResponse: transformResponse }, httpOptions)) .finally(function() { handleRequestFn.totalPendingRequests--; }) .then(function(response) { $templateCache.put(tpl, response.data); return response.data; }, handleError); function handleError(resp) { if (!ignoreRequestError) { resp = $templateRequestMinErr('tpload', 'Failed to load template: {0} (HTTP status: {1} {2})', tpl, resp.status, resp.statusText); $exceptionHandler(resp); } return $q.reject(resp); } } handleRequestFn.totalPendingRequests = 0; return handleRequestFn; } ]; } /** @this */ function $$TestabilityProvider() { this.$get = ['$rootScope', '$browser', '$location', function($rootScope, $browser, $location) { /** * @name $testability * * @description * The private $$testability service provides a collection of methods for use when debugging * or by automated test and debugging tools. */ var testability = {}; /** * @name $$testability#findBindings * * @description * Returns an array of elements that are bound (via ng-bind or {{}}) * to expressions matching the input. * * @param {Element} element The element root to search from. * @param {string} expression The binding expression to match. * @param {boolean} opt_exactMatch If true, only returns exact matches * for the expression. Filters and whitespace are ignored. */ testability.findBindings = function(element, expression, opt_exactMatch) { var bindings = element.getElementsByClassName('ng-binding'); var matches = []; forEach(bindings, function(binding) { var dataBinding = angular.element(binding).data('$binding'); if (dataBinding) { forEach(dataBinding, function(bindingName) { if (opt_exactMatch) { var matcher = new RegExp('(^|\\s)' + escapeForRegexp(expression) + '(\\s|\\||$)'); if (matcher.test(bindingName)) { matches.push(binding); } } else { if (bindingName.indexOf(expression) !== -1) { matches.push(binding); } } }); } }); return matches; }; /** * @name $$testability#findModels * * @description * Returns an array of elements that are two-way found via ng-model to * expressions matching the input. * * @param {Element} element The element root to search from. * @param {string} expression The model expression to match. * @param {boolean} opt_exactMatch If true, only returns exact matches * for the expression. */ testability.findModels = function(element, expression, opt_exactMatch) { var prefixes = ['ng-', 'data-ng-', 'ng\\:']; for (var p = 0; p < prefixes.length; ++p) { var attributeEquals = opt_exactMatch ? '=' : '*='; var selector = '[' + prefixes[p] + 'model' + attributeEquals + '"' + expression + '"]'; var elements = element.querySelectorAll(selector); if (elements.length) { return elements; } } }; /** * @name $$testability#getLocation * * @description * Shortcut for getting the location in a browser agnostic way. Returns * the path, search, and hash. (e.g. /path?a=b#hash) */ testability.getLocation = function() { return $location.url(); }; /** * @name $$testability#setLocation * * @description * Shortcut for navigating to a location without doing a full page reload. * * @param {string} url The location url (path, search and hash, * e.g. /path?a=b#hash) to go to. */ testability.setLocation = function(url) { if (url !== $location.url()) { $location.url(url); $rootScope.$digest(); } }; /** * @name $$testability#whenStable * * @description * Calls the callback when $timeout and $http requests are completed. * * @param {function} callback */ testability.whenStable = function(callback) { $browser.notifyWhenNoOutstandingRequests(callback); }; return testability; }]; } /** @this */ function $TimeoutProvider() { this.$get = ['$rootScope', '$browser', '$q', '$$q', '$exceptionHandler', function($rootScope, $browser, $q, $$q, $exceptionHandler) { var deferreds = {}; /** * @ngdoc service * @name $timeout * * @description * Angular's wrapper for `window.setTimeout`. The `fn` function is wrapped into a try/catch * block and delegates any exceptions to * {@link ng.$exceptionHandler $exceptionHandler} service. * * The return value of calling `$timeout` is a promise, which will be resolved when * the delay has passed and the timeout function, if provided, is executed. * * To cancel a timeout request, call `$timeout.cancel(promise)`. * * In tests you can use {@link ngMock.$timeout `$timeout.flush()`} to * synchronously flush the queue of deferred functions. * * If you only want a promise that will be resolved after some specified delay * then you can call `$timeout` without the `fn` function. * * @param {function()=} fn A function, whose execution should be delayed. * @param {number=} [delay=0] Delay in milliseconds. * @param {boolean=} [invokeApply=true] If set to `false` skips model dirty checking, otherwise * will invoke `fn` within the {@link ng.$rootScope.Scope#$apply $apply} block. * @param {...*=} Pass additional parameters to the executed function. * @returns {Promise} Promise that will be resolved when the timeout is reached. The promise * will be resolved with the return value of the `fn` function. * */ function timeout(fn, delay, invokeApply) { if (!isFunction(fn)) { invokeApply = delay; delay = fn; fn = noop; } var args = sliceArgs(arguments, 3), skipApply = (isDefined(invokeApply) && !invokeApply), deferred = (skipApply ? $$q : $q).defer(), promise = deferred.promise, timeoutId; timeoutId = $browser.defer(function() { try { deferred.resolve(fn.apply(null, args)); } catch (e) { deferred.reject(e); $exceptionHandler(e); } finally { delete deferreds[promise.$$timeoutId]; } if (!skipApply) $rootScope.$apply(); }, delay); promise.$$timeoutId = timeoutId; deferreds[timeoutId] = deferred; return promise; } /** * @ngdoc method * @name $timeout#cancel * * @description * Cancels a task associated with the `promise`. As a result of this, the promise will be * resolved with a rejection. * * @param {Promise=} promise Promise returned by the `$timeout` function. * @returns {boolean} Returns `true` if the task hasn't executed yet and was successfully * canceled. */ timeout.cancel = function(promise) { if (promise && promise.$$timeoutId in deferreds) { // Timeout cancels should not report an unhandled promise. deferreds[promise.$$timeoutId].promise.catch(noop); deferreds[promise.$$timeoutId].reject('canceled'); delete deferreds[promise.$$timeoutId]; return $browser.defer.cancel(promise.$$timeoutId); } return false; }; return timeout; }]; } // NOTE: The usage of window and document instead of $window and $document here is // deliberate. This service depends on the specific behavior of anchor nodes created by the // browser (resolving and parsing URLs) that is unlikely to be provided by mock objects and // cause us to break tests. In addition, when the browser resolves a URL for XHR, it // doesn't know about mocked locations and resolves URLs to the real document - which is // exactly the behavior needed here. There is little value is mocking these out for this // service. var urlParsingNode = window.document.createElement('a'); var originUrl = urlResolve(window.location.href); /** * * Implementation Notes for non-IE browsers * ---------------------------------------- * Assigning a URL to the href property of an anchor DOM node, even one attached to the DOM, * results both in the normalizing and parsing of the URL. Normalizing means that a relative * URL will be resolved into an absolute URL in the context of the application document. * Parsing means that the anchor node's host, hostname, protocol, port, pathname and related * properties are all populated to reflect the normalized URL. This approach has wide * compatibility - Safari 1+, Mozilla 1+, Opera 7+,e etc. See * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html * * Implementation Notes for IE * --------------------------- * IE <= 10 normalizes the URL when assigned to the anchor node similar to the other * browsers. However, the parsed components will not be set if the URL assigned did not specify * them. (e.g. if you assign a.href = "foo", then a.protocol, a.host, etc. will be empty.) We * work around that by performing the parsing in a 2nd step by taking a previously normalized * URL (e.g. by assigning to a.href) and assigning it a.href again. This correctly populates the * properties such as protocol, hostname, port, etc. * * References: * http://developer.mozilla.org/en-US/docs/Web/API/HTMLAnchorElement * http://www.aptana.com/reference/html/api/HTMLAnchorElement.html * http://url.spec.whatwg.org/#urlutils * https://github.com/angular/angular.js/pull/2902 * http://james.padolsey.com/javascript/parsing-urls-with-the-dom/ * * @kind function * @param {string} url The URL to be parsed. * @description Normalizes and parses a URL. * @returns {object} Returns the normalized URL as a dictionary. * * | member name | Description | * |---------------|----------------| * | href | A normalized version of the provided URL if it was not an absolute URL | * | protocol | The protocol including the trailing colon | * | host | The host and port (if the port is non-default) of the normalizedUrl | * | search | The search params, minus the question mark | * | hash | The hash string, minus the hash symbol * | hostname | The hostname * | port | The port, without ":" * | pathname | The pathname, beginning with "/" * */ function urlResolve(url) { var href = url; // Support: IE 9-11 only if (msie) { // Normalize before parse. Refer Implementation Notes on why this is // done in two steps on IE. urlParsingNode.setAttribute('href', href); href = urlParsingNode.href; } urlParsingNode.setAttribute('href', href); // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils return { href: urlParsingNode.href, protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '', host: urlParsingNode.host, search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '', hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '', hostname: urlParsingNode.hostname, port: urlParsingNode.port, pathname: (urlParsingNode.pathname.charAt(0) === '/') ? urlParsingNode.pathname : '/' + urlParsingNode.pathname }; } /** * Parse a request URL and determine whether this is a same-origin request as the application document. * * @param {string|object} requestUrl The url of the request as a string that will be resolved * or a parsed URL object. * @returns {boolean} Whether the request is for the same origin as the application document. */ function urlIsSameOrigin(requestUrl) { var parsed = (isString(requestUrl)) ? urlResolve(requestUrl) : requestUrl; return (parsed.protocol === originUrl.protocol && parsed.host === originUrl.host); } /** * @ngdoc service * @name $window * @this * * @description * A reference to the browser's `window` object. While `window` * is globally available in JavaScript, it causes testability problems, because * it is a global variable. In angular we always refer to it through the * `$window` service, so it may be overridden, removed or mocked for testing. * * Expressions, like the one defined for the `ngClick` directive in the example * below, are evaluated with respect to the current scope. Therefore, there is * no risk of inadvertently coding in a dependency on a global value in such an * expression. * * @example
it('should display the greeting in the input box', function() { element(by.model('greeting')).sendKeys('Hello, E2E Tests'); // If we click the button it will block the test runner // element(':button').click(); }); */ function $WindowProvider() { this.$get = valueFn(window); } /** * @name $$cookieReader * @requires $document * * @description * This is a private service for reading cookies used by $http and ngCookies * * @return {Object} a key/value map of the current cookies */ function $$CookieReader($document) { var rawDocument = $document[0] || {}; var lastCookies = {}; var lastCookieString = ''; function safeGetCookie(rawDocument) { try { return rawDocument.cookie || ''; } catch (e) { return ''; } } function safeDecodeURIComponent(str) { try { return decodeURIComponent(str); } catch (e) { return str; } } return function() { var cookieArray, cookie, i, index, name; var currentCookieString = safeGetCookie(rawDocument); if (currentCookieString !== lastCookieString) { lastCookieString = currentCookieString; cookieArray = lastCookieString.split('; '); lastCookies = {}; for (i = 0; i < cookieArray.length; i++) { cookie = cookieArray[i]; index = cookie.indexOf('='); if (index > 0) { //ignore nameless cookies name = safeDecodeURIComponent(cookie.substring(0, index)); // the first value that is seen for a cookie is the most // specific one. values for the same cookie name that // follow are for less specific paths. if (isUndefined(lastCookies[name])) { lastCookies[name] = safeDecodeURIComponent(cookie.substring(index + 1)); } } } } return lastCookies; }; } $$CookieReader.$inject = ['$document']; /** @this */ function $$CookieReaderProvider() { this.$get = $$CookieReader; } /* global currencyFilter: true, dateFilter: true, filterFilter: true, jsonFilter: true, limitToFilter: true, lowercaseFilter: true, numberFilter: true, orderByFilter: true, uppercaseFilter: true, */ /** * @ngdoc provider * @name $filterProvider * @description * * Filters are just functions which transform input to an output. However filters need to be * Dependency Injected. To achieve this a filter definition consists of a factory function which is * annotated with dependencies and is responsible for creating a filter function. * *
* **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`. * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores * (`myapp_subsection_filterx`). *
* * ```js * // Filter registration * function MyModule($provide, $filterProvider) { * // create a service to demonstrate injection (not always needed) * $provide.value('greet', function(name){ * return 'Hello ' + name + '!'; * }); * * // register a filter factory which uses the * // greet service to demonstrate DI. * $filterProvider.register('greet', function(greet){ * // return the filter function which uses the greet service * // to generate salutation * return function(text) { * // filters need to be forgiving so check input validity * return text && greet(text) || text; * }; * }); * } * ``` * * The filter function is registered with the `$injector` under the filter name suffix with * `Filter`. * * ```js * it('should be the same instance', inject( * function($filterProvider) { * $filterProvider.register('reverse', function(){ * return ...; * }); * }, * function($filter, reverseFilter) { * expect($filter('reverse')).toBe(reverseFilter); * }); * ``` * * * For more information about how angular filters work, and how to create your own filters, see * {@link guide/filter Filters} in the Angular Developer Guide. */ /** * @ngdoc service * @name $filter * @kind function * @description * Filters are used for formatting data displayed to the user. * * They can be used in view templates, controllers or services.Angular comes * with a collection of [built-in filters](api/ng/filter), but it is easy to * define your own as well. * * The general syntax in templates is as follows: * * ```html * {{ expression [| filter_name[:parameter_value] ... ] }} * ``` * * @param {String} name Name of the filter function to retrieve * @return {Function} the filter function * @example

{{ originalText }}

{{ filteredText }}

 angular.module('filterExample', []) .controller('MainCtrl', function($scope, $filter) { $scope.originalText = 'hello'; $scope.filteredText = $filter('uppercase')($scope.originalText); }); */ $FilterProvider.$inject = ['$provide']; /** @this */ function $FilterProvider($provide) { var suffix = 'Filter'; /** * @ngdoc method * @name $filterProvider#register * @param {string|Object} name Name of the filter function, or an object map of filters where * the keys are the filter names and the values are the filter factories. * *
* **Note:** Filter names must be valid angular {@link expression} identifiers, such as `uppercase` or `orderBy`. * Names with special characters, such as hyphens and dots, are not allowed. If you wish to namespace * your filters, then you can use capitalization (`myappSubsectionFilterx`) or underscores * (`myapp_subsection_filterx`). *
* @param {Function} factory If the first argument was a string, a factory function for the filter to be registered. * @returns {Object} Registered filter instance, or if a map of filters was provided then a map * of the registered filter instances. */ function register(name, factory) { if (isObject(name)) { var filters = {}; forEach(name, function(filter, key) { filters[key] = register(key, filter); }); return filters; } else { return $provide.factory(name + suffix, factory); } } this.register = register; this.$get = ['$injector', function($injector) { return function(name) { return $injector.get(name + suffix); }; }]; //////////////////////////////////////// /* global currencyFilter: false, dateFilter: false, filterFilter: false, jsonFilter: false, limitToFilter: false, lowercaseFilter: false, numberFilter: false, orderByFilter: false, uppercaseFilter: false */ register('currency', currencyFilter); register('date', dateFilter); register('filter', filterFilter); register('json', jsonFilter); register('limitTo', limitToFilter); register('lowercase', lowercaseFilter); register('number', numberFilter); register('orderBy', orderByFilter); register('uppercase', uppercaseFilter); } /** * @ngdoc filter * @name filter * @kind function * * @description * Selects a subset of items from `array` and returns it as a new array. * * @param {Array} array The source array. * @param {string|Object|function()} expression The predicate to be used for selecting items from * `array`. * * Can be one of: * * - `string`: The string is used for matching against the contents of the `array`. All strings or * objects with string properties in `array` that match this string will be returned. This also * applies to nested object properties. * The predicate can be negated by prefixing the string with `!`. * * - `Object`: A pattern object can be used to filter specific properties on objects contained * by `array`. For example `{name:"M", phone:"1"}` predicate will return an array of items * which have property `name` containing "M" and property `phone` containing "1". A special * property name (`$` by default) can be used (e.g. as in `{$: "text"}`) to accept a match * against any property of the object or its nested object properties. That's equivalent to the * simple substring match with a `string` as described above. The special property name can be * overwritten, using the `anyPropertyKey` parameter. * The predicate can be negated by prefixing the string with `!`. * For example `{name: "!M"}` predicate will return an array of items which have property `name` * not containing "M". * * Note that a named property will match properties on the same level only, while the special * `$` property will match properties on the same level or deeper. E.g. an array item like * `{name: {first: 'John', last: 'Doe'}}` will **not** be matched by `{name: 'John'}`, but * **will** be matched by `{$: 'John'}`. * * - `function(value, index, array)`: A predicate function can be used to write arbitrary filters. * The function is called for each element of the array, with the element, its index, and * the entire array itself as arguments. * * The final result is an array of those elements that the predicate returned true for. * * @param {function(actual, expected)|true|false} [comparator] Comparator which is used in * determining if the expected value (from the filter expression) and actual value (from * the object in the array) should be considered a match. * * Can be one of: * * - `function(actual, expected)`: * The function will be given the object value and the predicate value to compare and * should return true if both values should be considered equal. * * - `true`: A shorthand for `function(actual, expected) { return angular.equals(actual, expected)}`. * This is essentially strict comparison of expected and actual. * * - `false`: A short hand for a function which will look for a substring match in a case * insensitive way. Primitive values are converted to strings. Objects are not compared against * primitives, unless they have a custom `toString` method (e.g. `Date` objects). * * * Defaults to `false`. * * @param {string} [anyPropertyKey] The special property name that matches against any property. * By default `$`. * * @example
NamePhone
{{friend.name}} {{friend.phone}}




NamePhone
{{friendObj.name}} {{friendObj.phone}}
var expectFriendNames = function(expectedNames, key) { element.all(by.repeater(key + ' in friends').column(key + '.name')).then(function(arr) { arr.forEach(function(wd, i) { expect(wd.getText()).toMatch(expectedNames[i]); }); }); }; it('should search across all fields when filtering with a string', function() { var searchText = element(by.model('searchText')); searchText.clear(); searchText.sendKeys('m'); expectFriendNames(['Mary', 'Mike', 'Adam'], 'friend'); searchText.clear(); searchText.sendKeys('76'); expectFriendNames(['John', 'Julie'], 'friend'); }); it('should search in specific fields when filtering with a predicate object', function() { var searchAny = element(by.model('search.$')); searchAny.clear(); searchAny.sendKeys('i'); expectFriendNames(['Mary', 'Mike', 'Julie', 'Juliette'], 'friendObj'); }); it('should use a equal comparison when comparator is true', function() { var searchName = element(by.model('search.name')); var strict = element(by.model('strict')); searchName.clear(); searchName.sendKeys('Julie'); strict.click(); expectFriendNames(['Julie'], 'friendObj'); }); */ function filterFilter() { return function(array, expression, comparator, anyPropertyKey) { if (!isArrayLike(array)) { if (array == null) { return array; } else { throw minErr('filter')('notarray', 'Expected array but received: {0}', array); } } anyPropertyKey = anyPropertyKey || '$'; var expressionType = getTypeForFilter(expression); var predicateFn; var matchAgainstAnyProp; switch (expressionType) { case 'function': predicateFn = expression; break; case 'boolean': case 'null': case 'number': case 'string': matchAgainstAnyProp = true; // falls through case 'object': predicateFn = createPredicateFn(expression, comparator, anyPropertyKey, matchAgainstAnyProp); break; default: return array; } return Array.prototype.filter.call(array, predicateFn); }; } // Helper functions for `filterFilter` function createPredicateFn(expression, comparator, anyPropertyKey, matchAgainstAnyProp) { var shouldMatchPrimitives = isObject(expression) && (anyPropertyKey in expression); var predicateFn; if (comparator === true) { comparator = equals; } else if (!isFunction(comparator)) { comparator = function(actual, expected) { if (isUndefined(actual)) { // No substring matching against `undefined` return false; } if ((actual === null) || (expected === null)) { // No substring matching against `null`; only match against `null` return actual === expected; } if (isObject(expected) || (isObject(actual) && !hasCustomToString(actual))) { // Should not compare primitives against objects, unless they have custom `toString` method return false; } actual = lowercase('' + actual); expected = lowercase('' + expected); return actual.indexOf(expected) !== -1; }; } predicateFn = function(item) { if (shouldMatchPrimitives && !isObject(item)) { return deepCompare(item, expression[anyPropertyKey], comparator, anyPropertyKey, false); } return deepCompare(item, expression, comparator, anyPropertyKey, matchAgainstAnyProp); }; return predicateFn; } function deepCompare(actual, expected, comparator, anyPropertyKey, matchAgainstAnyProp, dontMatchWholeObject) { var actualType = getTypeForFilter(actual); var expectedType = getTypeForFilter(expected); if ((expectedType === 'string') && (expected.charAt(0) === '!')) { return !deepCompare(actual, expected.substring(1), comparator, anyPropertyKey, matchAgainstAnyProp); } else if (isArray(actual)) { // In case `actual` is an array, consider it a match // if ANY of it's items matches `expected` return actual.some(function(item) { return deepCompare(item, expected, comparator, anyPropertyKey, matchAgainstAnyProp); }); } switch (actualType) { case 'object': var key; if (matchAgainstAnyProp) { for (key in actual) { if ((key.charAt(0) !== '$') && deepCompare(actual[key], expected, comparator, anyPropertyKey, true)) { return true; } } return dontMatchWholeObject ? false : deepCompare(actual, expected, comparator, anyPropertyKey, false); } else if (expectedType === 'object') { for (key in expected) { var expectedVal = expected[key]; if (isFunction(expectedVal) || isUndefined(expectedVal)) { continue; } var matchAnyProperty = key === anyPropertyKey; var actualVal = matchAnyProperty ? actual : actual[key]; if (!deepCompare(actualVal, expectedVal, comparator, anyPropertyKey, matchAnyProperty, matchAnyProperty)) { return false; } } return true; } else { return comparator(actual, expected); } case 'function': return false; default: return comparator(actual, expected); } } // Used for easily differentiating between `null` and actual `object` function getTypeForFilter(val) { return (val === null) ? 'null' : typeof val; } var MAX_DIGITS = 22; var DECIMAL_SEP = '.'; var ZERO_CHAR = '0'; /** * @ngdoc filter * @name currency * @kind function * * @description * Formats a number as a currency (ie $1,234.56). When no currency symbol is provided, default * symbol for current locale is used. * * @param {number} amount Input to filter. * @param {string=} symbol Currency symbol or identifier to be displayed. * @param {number=} fractionSize Number of decimal places to round the amount to, defaults to default max fraction size for current locale * @returns {string} Formatted number. * * * @example

default currency symbol ($): {{amount | currency}}
custom currency identifier (USD$): {{amount | currency:"USD$"}}
no fractions (0): {{amount | currency:"USD$":0}}
it('should init with 1234.56', function() { expect(element(by.id('currency-default')).getText()).toBe('$1,234.56'); expect(element(by.id('currency-custom')).getText()).toBe('USD$1,234.56'); expect(element(by.id('currency-no-fractions')).getText()).toBe('USD$1,235'); }); it('should update', function() { if (browser.params.browser === 'safari') { // Safari does not understand the minus key. See // https://github.com/angular/protractor/issues/481 return; } element(by.model('amount')).clear(); element(by.model('amount')).sendKeys('-1234'); expect(element(by.id('currency-default')).getText()).toBe('-$1,234.00'); expect(element(by.id('currency-custom')).getText()).toBe('-USD$1,234.00'); expect(element(by.id('currency-no-fractions')).getText()).toBe('-USD$1,234'); }); */ currencyFilter.$inject = ['$locale']; function currencyFilter($locale) { var formats = $locale.NUMBER_FORMATS; return function(amount, currencySymbol, fractionSize) { if (isUndefined(currencySymbol)) { currencySymbol = formats.CURRENCY_SYM; } if (isUndefined(fractionSize)) { fractionSize = formats.PATTERNS[1].maxFrac; } // if null or undefined pass it through return (amount == null) ? amount : formatNumber(amount, formats.PATTERNS[1], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize). replace(/\u00A4/g, currencySymbol); }; } /** * @ngdoc filter * @name number * @kind function * * @description * Formats a number as text. * * If the input is null or undefined, it will just be returned. * If the input is infinite (Infinity or -Infinity), the Infinity symbol '∞' or '-∞' is returned, respectively. * If the input is not a number an empty string is returned. * * * @param {number|string} number Number to format. * @param {(number|string)=} fractionSize Number of decimal places to round the number to. * If this is not provided then the fraction size is computed from the current locale's number * formatting pattern. In the case of the default locale, it will be 3. * @returns {string} Number rounded to `fractionSize` appropriately formatted based on the current * locale (e.g., in the en_US locale it will have "." as the decimal separator and * include "," group separators after each third digit). * * @example

Default formatting: {{val | number}}
No fractions: {{val | number:0}}
Negative number: {{-val | number:4}}
it('should format numbers', function() { expect(element(by.id('number-default')).getText()).toBe('1,234.568'); expect(element(by.binding('val | number:0')).getText()).toBe('1,235'); expect(element(by.binding('-val | number:4')).getText()).toBe('-1,234.5679'); }); it('should update', function() { element(by.model('val')).clear(); element(by.model('val')).sendKeys('3374.333'); expect(element(by.id('number-default')).getText()).toBe('3,374.333'); expect(element(by.binding('val | number:0')).getText()).toBe('3,374'); expect(element(by.binding('-val | number:4')).getText()).toBe('-3,374.3330'); }); */ numberFilter.$inject = ['$locale']; function numberFilter($locale) { var formats = $locale.NUMBER_FORMATS; return function(number, fractionSize) { // if null or undefined pass it through return (number == null) ? number : formatNumber(number, formats.PATTERNS[0], formats.GROUP_SEP, formats.DECIMAL_SEP, fractionSize); }; } /** * Parse a number (as a string) into three components that can be used * for formatting the number. * * (Significant bits of this parse algorithm came from https://github.com/MikeMcl/big.js/) * * @param {string} numStr The number to parse * @return {object} An object describing this number, containing the following keys: * - d : an array of digits containing leading zeros as necessary * - i : the number of the digits in `d` that are to the left of the decimal point * - e : the exponent for numbers that would need more than `MAX_DIGITS` digits in `d` * */ function parse(numStr) { var exponent = 0, digits, numberOfIntegerDigits; var i, j, zeros; // Decimal point? if ((numberOfIntegerDigits = numStr.indexOf(DECIMAL_SEP)) > -1) { numStr = numStr.replace(DECIMAL_SEP, ''); } // Exponential form? if ((i = numStr.search(/e/i)) > 0) { // Work out the exponent. if (numberOfIntegerDigits < 0) numberOfIntegerDigits = i; numberOfIntegerDigits += +numStr.slice(i + 1); numStr = numStr.substring(0, i); } else if (numberOfIntegerDigits < 0) { // There was no decimal point or exponent so it is an integer. numberOfIntegerDigits = numStr.length; } // Count the number of leading zeros. for (i = 0; numStr.charAt(i) === ZERO_CHAR; i++) { /* empty */ } if (i === (zeros = numStr.length)) { // The digits are all zero. digits = [0]; numberOfIntegerDigits = 1; } else { // Count the number of trailing zeros zeros--; while (numStr.charAt(zeros) === ZERO_CHAR) zeros--; // Trailing zeros are insignificant so ignore them numberOfIntegerDigits -= i; digits = []; // Convert string to array of digits without leading/trailing zeros. for (j = 0; i <= zeros; i++, j++) { digits[j] = +numStr.charAt(i); } } // If the number overflows the maximum allowed digits then use an exponent. if (numberOfIntegerDigits > MAX_DIGITS) { digits = digits.splice(0, MAX_DIGITS - 1); exponent = numberOfIntegerDigits - 1; numberOfIntegerDigits = 1; } return { d: digits, e: exponent, i: numberOfIntegerDigits }; } /** * Round the parsed number to the specified number of decimal places * This function changed the parsedNumber in-place */ function roundNumber(parsedNumber, fractionSize, minFrac, maxFrac) { var digits = parsedNumber.d; var fractionLen = digits.length - parsedNumber.i; // determine fractionSize if it is not specified; `+fractionSize` converts it to a number fractionSize = (isUndefined(fractionSize)) ? Math.min(Math.max(minFrac, fractionLen), maxFrac) : +fractionSize; // The index of the digit to where rounding is to occur var roundAt = fractionSize + parsedNumber.i; var digit = digits[roundAt]; if (roundAt > 0) { // Drop fractional digits beyond `roundAt` digits.splice(Math.max(parsedNumber.i, roundAt)); // Set non-fractional digits beyond `roundAt` to 0 for (var j = roundAt; j < digits.length; j++) { digits[j] = 0; } } else { // We rounded to zero so reset the parsedNumber fractionLen = Math.max(0, fractionLen); parsedNumber.i = 1; digits.length = Math.max(1, roundAt = fractionSize + 1); digits[0] = 0; for (var i = 1; i < roundAt; i++) digits[i] = 0; } if (digit >= 5) { if (roundAt - 1 < 0) { for (var k = 0; k > roundAt; k--) { digits.unshift(0); parsedNumber.i++; } digits.unshift(1); parsedNumber.i++; } else { digits[roundAt - 1]++; } } // Pad out with zeros to get the required fraction length for (; fractionLen < Math.max(0, fractionSize); fractionLen++) digits.push(0); // Do any carrying, e.g. a digit was rounded up to 10 var carry = digits.reduceRight(function(carry, d, i, digits) { d = d + carry; digits[i] = d % 10; return Math.floor(d / 10); }, 0); if (carry) { digits.unshift(carry); parsedNumber.i++; } } /** * Format a number into a string * @param {number} number The number to format * @param {{ * minFrac, // the minimum number of digits required in the fraction part of the number * maxFrac, // the maximum number of digits required in the fraction part of the number * gSize, // number of digits in each group of separated digits * lgSize, // number of digits in the last group of digits before the decimal separator * negPre, // the string to go in front of a negative number (e.g. `-` or `(`)) * posPre, // the string to go in front of a positive number * negSuf, // the string to go after a negative number (e.g. `)`) * posSuf // the string to go after a positive number * }} pattern * @param {string} groupSep The string to separate groups of number (e.g. `,`) * @param {string} decimalSep The string to act as the decimal separator (e.g. `.`) * @param {[type]} fractionSize The size of the fractional part of the number * @return {string} The number formatted as a string */ function formatNumber(number, pattern, groupSep, decimalSep, fractionSize) { if (!(isString(number) || isNumber(number)) || isNaN(number)) return ''; var isInfinity = !isFinite(number); var isZero = false; var numStr = Math.abs(number) + '', formattedText = '', parsedNumber; if (isInfinity) { formattedText = '\u221e'; } else { parsedNumber = parse(numStr); roundNumber(parsedNumber, fractionSize, pattern.minFrac, pattern.maxFrac); var digits = parsedNumber.d; var integerLen = parsedNumber.i; var exponent = parsedNumber.e; var decimals = []; isZero = digits.reduce(function(isZero, d) { return isZero && !d; }, true); // pad zeros for small numbers while (integerLen < 0) { digits.unshift(0); integerLen++; } // extract decimals digits if (integerLen > 0) { decimals = digits.splice(integerLen, digits.length); } else { decimals = digits; digits = [0]; } // format the integer digits with grouping separators var groups = []; if (digits.length >= pattern.lgSize) { groups.unshift(digits.splice(-pattern.lgSize, digits.length).join('')); } while (digits.length > pattern.gSize) { groups.unshift(digits.splice(-pattern.gSize, digits.length).join('')); } if (digits.length) { groups.unshift(digits.join('')); } formattedText = groups.join(groupSep); // append the decimal digits if (decimals.length) { formattedText += decimalSep + decimals.join(''); } if (exponent) { formattedText += 'e+' + exponent; } } if (number < 0 && !isZero) { return pattern.negPre + formattedText + pattern.negSuf; } else { return pattern.posPre + formattedText + pattern.posSuf; } } function padNumber(num, digits, trim, negWrap) { var neg = ''; if (num < 0 || (negWrap && num <= 0)) { if (negWrap) { num = -num + 1; } else { num = -num; neg = '-'; } } num = '' + num; while (num.length < digits) num = ZERO_CHAR + num; if (trim) { num = num.substr(num.length - digits); } return neg + num; } function dateGetter(name, size, offset, trim, negWrap) { offset = offset || 0; return function(date) { var value = date['get' + name](); if (offset > 0 || value > -offset) { value += offset; } if (value === 0 && offset === -12) value = 12; return padNumber(value, size, trim, negWrap); }; } function dateStrGetter(name, shortForm, standAlone) { return function(date, formats) { var value = date['get' + name](); var propPrefix = (standAlone ? 'STANDALONE' : '') + (shortForm ? 'SHORT' : ''); var get = uppercase(propPrefix + name); return formats[get][value]; }; } function timeZoneGetter(date, formats, offset) { var zone = -1 * offset; var paddedZone = (zone >= 0) ? '+' : ''; paddedZone += padNumber(Math[zone > 0 ? 'floor' : 'ceil'](zone / 60), 2) + padNumber(Math.abs(zone % 60), 2); return paddedZone; } function getFirstThursdayOfYear(year) { // 0 = index of January var dayOfWeekOnFirst = (new Date(year, 0, 1)).getDay(); // 4 = index of Thursday (+1 to account for 1st = 5) // 11 = index of *next* Thursday (+1 account for 1st = 12) return new Date(year, 0, ((dayOfWeekOnFirst <= 4) ? 5 : 12) - dayOfWeekOnFirst); } function getThursdayThisWeek(datetime) { return new Date(datetime.getFullYear(), datetime.getMonth(), // 4 = index of Thursday datetime.getDate() + (4 - datetime.getDay())); } function weekGetter(size) { return function(date) { var firstThurs = getFirstThursdayOfYear(date.getFullYear()), thisThurs = getThursdayThisWeek(date); var diff = +thisThurs - +firstThurs, result = 1 + Math.round(diff / 6.048e8); // 6.048e8 ms per week return padNumber(result, size); }; } function ampmGetter(date, formats) { return date.getHours() < 12 ? formats.AMPMS[0] : formats.AMPMS[1]; } function eraGetter(date, formats) { return date.getFullYear() <= 0 ? formats.ERAS[0] : formats.ERAS[1]; } function longEraGetter(date, formats) { return date.getFullYear() <= 0 ? formats.ERANAMES[0] : formats.ERANAMES[1]; } var DATE_FORMATS = { yyyy: dateGetter('FullYear', 4, 0, false, true), yy: dateGetter('FullYear', 2, 0, true, true), y: dateGetter('FullYear', 1, 0, false, true), MMMM: dateStrGetter('Month'), MMM: dateStrGetter('Month', true), MM: dateGetter('Month', 2, 1), M: dateGetter('Month', 1, 1), LLLL: dateStrGetter('Month', false, true), dd: dateGetter('Date', 2), d: dateGetter('Date', 1), HH: dateGetter('Hours', 2), H: dateGetter('Hours', 1), hh: dateGetter('Hours', 2, -12), h: dateGetter('Hours', 1, -12), mm: dateGetter('Minutes', 2), m: dateGetter('Minutes', 1), ss: dateGetter('Seconds', 2), s: dateGetter('Seconds', 1), // while ISO 8601 requires fractions to be prefixed with `.` or `,` // we can be just safely rely on using `sss` since we currently don't support single or two digit fractions sss: dateGetter('Milliseconds', 3), EEEE: dateStrGetter('Day'), EEE: dateStrGetter('Day', true), a: ampmGetter, Z: timeZoneGetter, ww: weekGetter(2), w: weekGetter(1), G: eraGetter, GG: eraGetter, GGG: eraGetter, GGGG: longEraGetter }; var DATE_FORMATS_SPLIT = /((?:[^yMLdHhmsaZEwG']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|L+|d+|H+|h+|m+|s+|a|Z|G+|w+))(.*)/, NUMBER_STRING = /^-?\d+$/; /** * @ngdoc filter * @name date * @kind function * * @description * Formats `date` to a string based on the requested `format`. * * `format` string can be composed of the following elements: * * * `'yyyy'`: 4 digit representation of year (e.g. AD 1 => 0001, AD 2010 => 2010) * * `'yy'`: 2 digit representation of year, padded (00-99). (e.g. AD 2001 => 01, AD 2010 => 10) * * `'y'`: 1 digit representation of year, e.g. (AD 1 => 1, AD 199 => 199) * * `'MMMM'`: Month in year (January-December) * * `'MMM'`: Month in year (Jan-Dec) * * `'MM'`: Month in year, padded (01-12) * * `'M'`: Month in year (1-12) * * `'LLLL'`: Stand-alone month in year (January-December) * * `'dd'`: Day in month, padded (01-31) * * `'d'`: Day in month (1-31) * * `'EEEE'`: Day in Week,(Sunday-Saturday) * * `'EEE'`: Day in Week, (Sun-Sat) * * `'HH'`: Hour in day, padded (00-23) * * `'H'`: Hour in day (0-23) * * `'hh'`: Hour in AM/PM, padded (01-12) * * `'h'`: Hour in AM/PM, (1-12) * * `'mm'`: Minute in hour, padded (00-59) * * `'m'`: Minute in hour (0-59) * * `'ss'`: Second in minute, padded (00-59) * * `'s'`: Second in minute (0-59) * * `'sss'`: Millisecond in second, padded (000-999) * * `'a'`: AM/PM marker * * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200) * * `'ww'`: Week of year, padded (00-53). Week 01 is the week with the first Thursday of the year * * `'w'`: Week of year (0-53). Week 1 is the week with the first Thursday of the year * * `'G'`, `'GG'`, `'GGG'`: The abbreviated form of the era string (e.g. 'AD') * * `'GGGG'`: The long form of the era string (e.g. 'Anno Domini') * * `format` string can also be one of the following predefined * {@link guide/i18n localizable formats}: * * * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale * (e.g. Sep 3, 2010 12:05:08 PM) * * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US locale (e.g. 9/3/10 12:05 PM) * * `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` for en_US locale * (e.g. Friday, September 3, 2010) * * `'longDate'`: equivalent to `'MMMM d, y'` for en_US locale (e.g. September 3, 2010) * * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US locale (e.g. Sep 3, 2010) * * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10) * * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 PM) * * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 PM) * * `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g. * `"h 'in the morning'"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence * (e.g. `"h 'o''clock'"`). * * @param {(Date|number|string)} date Date to format either as Date object, milliseconds (string or * number) or various ISO 8601 datetime string formats (e.g. yyyy-MM-ddTHH:mm:ss.sssZ and its * shorter versions like yyyy-MM-ddTHH:mmZ, yyyy-MM-dd or yyyyMMddTHHmmssZ). If no timezone is * specified in the string input, the time is considered to be in the local timezone. * @param {string=} format Formatting rules (see Description). If not specified, * `mediumDate` is used. * @param {string=} timezone Timezone to be used for formatting. It understands UTC/GMT and the * continental US time zone abbreviations, but for general use, use a time zone offset, for * example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian) * If not specified, the timezone of the browser will be used. * @returns {string} Formatted string or the input if input is not recognized as date/millis. * * @example {{1288323623006 | date:'medium'}}: {{1288323623006 | date:'medium'}}
{{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}: {{1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'}}
{{1288323623006 | date:'MM/dd/yyyy @ h:mma'}}: {{'1288323623006' | date:'MM/dd/yyyy @ h:mma'}}
{{1288323623006 | date:"MM/dd/yyyy 'at' h:mma"}}: {{'1288323623006' | date:"MM/dd/yyyy 'at' h:mma"}}
 it('should format date', function() { expect(element(by.binding("1288323623006 | date:'medium'")).getText()). toMatch(/Oct 2\d, 2010 \d{1,2}:\d{2}:\d{2} (AM|PM)/); expect(element(by.binding("1288323623006 | date:'yyyy-MM-dd HH:mm:ss Z'")).getText()). toMatch(/2010-10-2\d \d{2}:\d{2}:\d{2} (-|\+)?\d{4}/); expect(element(by.binding("'1288323623006' | date:'MM/dd/yyyy @ h:mma'")).getText()). toMatch(/10\/2\d\/2010 @ \d{1,2}:\d{2}(AM|PM)/); expect(element(by.binding("'1288323623006' | date:\"MM/dd/yyyy 'at' h:mma\"")).getText()). toMatch(/10\/2\d\/2010 at \d{1,2}:\d{2}(AM|PM)/); }); */ dateFilter.$inject = ['$locale']; function dateFilter($locale) { var R_ISO8601_STR = /^(\d{4})-?(\d\d)-?(\d\d)(?:T(\d\d)(?::?(\d\d)(?::?(\d\d)(?:\.(\d+))?)?)?(Z|([+-])(\d\d):?(\d\d))?)?$/; // 1 2 3 4 5 6 7 8 9 10 11 function jsonStringToDate(string) { var match; if ((match = string.match(R_ISO8601_STR))) { var date = new Date(0), tzHour = 0, tzMin = 0, dateSetter = match[8] ? date.setUTCFullYear : date.setFullYear, timeSetter = match[8] ? date.setUTCHours : date.setHours; if (match[9]) { tzHour = toInt(match[9] + match[10]); tzMin = toInt(match[9] + match[11]); } dateSetter.call(date, toInt(match[1]), toInt(match[2]) - 1, toInt(match[3])); var h = toInt(match[4] || 0) - tzHour; var m = toInt(match[5] || 0) - tzMin; var s = toInt(match[6] || 0); var ms = Math.round(parseFloat('0.' + (match[7] || 0)) * 1000); timeSetter.call(date, h, m, s, ms); return date; } return string; } return function(date, format, timezone) { var text = '', parts = [], fn, match; format = format || 'mediumDate'; format = $locale.DATETIME_FORMATS[format] || format; if (isString(date)) { date = NUMBER_STRING.test(date) ? toInt(date) : jsonStringToDate(date); } if (isNumber(date)) { date = new Date(date); } if (!isDate(date) || !isFinite(date.getTime())) { return date; } while (format) { match = DATE_FORMATS_SPLIT.exec(format); if (match) { parts = concat(parts, match, 1); format = parts.pop(); } else { parts.push(format); format = null; } } var dateTimezoneOffset = date.getTimezoneOffset(); if (timezone) { dateTimezoneOffset = timezoneToOffset(timezone, dateTimezoneOffset); date = convertTimezoneToLocal(date, timezone, true); } forEach(parts, function(value) { fn = DATE_FORMATS[value]; text += fn ? fn(date, $locale.DATETIME_FORMATS, dateTimezoneOffset) : value === '\'\'' ? '\'' : value.replace(/(^'|'$)/g, '').replace(/''/g, '\''); }); return text; }; } /** * @ngdoc filter * @name json * @kind function * * @description * Allows you to convert a JavaScript object into JSON string. * * This filter is mostly useful for debugging. When using the double curly {{value}} notation * the binding is automatically converted to JSON. * * @param {*} object Any JavaScript object (including arrays and primitive types) to filter. * @param {number=} spacing The number of spaces to use per indentation, defaults to 2. * @returns {string} JSON string. * * * @example 
{{ {'name':'value'} | json }}
{{ {'name':'value'} | json:4 }}
 it('should jsonify filtered objects', function() { expect(element(by.id('default-spacing')).getText()).toMatch(/\{\n {2}"name": ?"value"\n}/); expect(element(by.id('custom-spacing')).getText()).toMatch(/\{\n {4}"name": ?"value"\n}/); }); * */ function jsonFilter() { return function(object, spacing) { if (isUndefined(spacing)) { spacing = 2; } return toJson(object, spacing); }; } /** * @ngdoc filter * @name lowercase * @kind function * @description * Converts string to lowercase. * @see angular.lowercase */ var lowercaseFilter = valueFn(lowercase); /** * @ngdoc filter * @name uppercase * @kind function * @description * Converts string to uppercase. * @see angular.uppercase */ var uppercaseFilter = valueFn(uppercase); /** * @ngdoc filter * @name limitTo * @kind function * * @description * Creates a new array or string containing only a specified number of elements. The elements are * taken from either the beginning or the end of the source array, string or number, as specified by * the value and sign (positive or negative) of `limit`. Other array-like objects are also supported * (e.g. array subclasses, NodeLists, jqLite/jQuery collections etc). If a number is used as input, * it is converted to a string. * * @param {Array|ArrayLike|string|number} input - Array/array-like, string or number to be limited. * @param {string|number} limit - The length of the returned array or string. If the `limit` number * is positive, `limit` number of items from the beginning of the source array/string are copied. * If the number is negative, `limit` number of items from the end of the source array/string * are copied. The `limit` will be trimmed if it exceeds `array.length`. If `limit` is undefined, * the input will be returned unchanged. * @param {(string|number)=} begin - Index at which to begin limitation. As a negative index, * `begin` indicates an offset from the end of `input`. Defaults to `0`. * @returns {Array|string} A new sub-array or substring of length `limit` or less if the input had * less than `limit` elements. * * @example

Output numbers: {{ numbers | limitTo:numLimit }}

Output letters: {{ letters | limitTo:letterLimit }}

Output long number: {{ longNumber | limitTo:longNumberLimit }}

 var numLimitInput = element(by.model('numLimit')); var letterLimitInput = element(by.model('letterLimit')); var longNumberLimitInput = element(by.model('longNumberLimit')); var limitedNumbers = element(by.binding('numbers | limitTo:numLimit')); var limitedLetters = element(by.binding('letters | limitTo:letterLimit')); var limitedLongNumber = element(by.binding('longNumber | limitTo:longNumberLimit')); it('should limit the number array to first three items', function() { expect(numLimitInput.getAttribute('value')).toBe('3'); expect(letterLimitInput.getAttribute('value')).toBe('3'); expect(longNumberLimitInput.getAttribute('value')).toBe('3'); expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3]'); expect(limitedLetters.getText()).toEqual('Output letters: abc'); expect(limitedLongNumber.getText()).toEqual('Output long number: 234'); }); // There is a bug in safari and protractor that doesn't like the minus key // it('should update the output when -3 is entered', function() { // numLimitInput.clear(); // numLimitInput.sendKeys('-3'); // letterLimitInput.clear(); // letterLimitInput.sendKeys('-3'); // longNumberLimitInput.clear(); // longNumberLimitInput.sendKeys('-3'); // expect(limitedNumbers.getText()).toEqual('Output numbers: [7,8,9]'); // expect(limitedLetters.getText()).toEqual('Output letters: ghi'); // expect(limitedLongNumber.getText()).toEqual('Output long number: 342'); // }); it('should not exceed the maximum size of input array', function() { numLimitInput.clear(); numLimitInput.sendKeys('100'); letterLimitInput.clear(); letterLimitInput.sendKeys('100'); longNumberLimitInput.clear(); longNumberLimitInput.sendKeys('100'); expect(limitedNumbers.getText()).toEqual('Output numbers: [1,2,3,4,5,6,7,8,9]'); expect(limitedLetters.getText()).toEqual('Output letters: abcdefghi'); expect(limitedLongNumber.getText()).toEqual('Output long number: 2345432342'); }); */ function limitToFilter() { return function(input, limit, begin) { if (Math.abs(Number(limit)) === Infinity) { limit = Number(limit); } else { limit = toInt(limit); } if (isNumberNaN(limit)) return input; if (isNumber(input)) input = input.toString(); if (!isArrayLike(input)) return input; begin = (!begin || isNaN(begin)) ? 0 : toInt(begin); begin = (begin < 0) ? Math.max(0, input.length + begin) : begin; if (limit >= 0) { return sliceFn(input, begin, begin + limit); } else { if (begin === 0) { return sliceFn(input, limit, input.length); } else { return sliceFn(input, Math.max(0, begin + limit), begin); } } }; } function sliceFn(input, begin, end) { if (isString(input)) return input.slice(begin, end); return slice.call(input, begin, end); } /** * @ngdoc filter * @name orderBy * @kind function * * @description * Returns an array containing the items from the specified `collection`, ordered by a `comparator` * function based on the values computed using the `expression` predicate. * * For example, `[{id: 'foo'}, {id: 'bar'}] | orderBy:'id'` would result in * `[{id: 'bar'}, {id: 'foo'}]`. * * The `collection` can be an Array or array-like object (e.g. NodeList, jQuery object, TypedArray, * String, etc). * * The `expression` can be a single predicate, or a list of predicates each serving as a tie-breaker * for the preceding one. The `expression` is evaluated against each item and the output is used * for comparing with other items. * * You can change the sorting order by setting `reverse` to `true`. By default, items are sorted in * ascending order. * * The comparison is done using the `comparator` function. If none is specified, a default, built-in * comparator is used (see below for details - in a nutshell, it compares numbers numerically and * strings alphabetically). * * ### Under the hood * * Ordering the specified `collection` happens in two phases: * * 1. All items are passed through the predicate (or predicates), and the returned values are saved * along with their type (`string`, `number` etc). For example, an item `{label: 'foo'}`, passed * through a predicate that extracts the value of the `label` property, would be transformed to: * ``` * { * value: 'foo', * type: 'string', * index: ... * } * ``` * 2. The comparator function is used to sort the items, based on the derived values, types and * indices. * * If you use a custom comparator, it will be called with pairs of objects of the form * `{value: ..., type: '...', index: ...}` and is expected to return `0` if the objects are equal * (as far as the comparator is concerned), `-1` if the 1st one should be ranked higher than the * second, or `1` otherwise. * * In order to ensure that the sorting will be deterministic across platforms, if none of the * specified predicates can distinguish between two items, `orderBy` will automatically introduce a * dummy predicate that returns the item's index as `value`. * (If you are using a custom comparator, make sure it can handle this predicate as well.) * * Finally, in an attempt to simplify things, if a predicate returns an object as the extracted * value for an item, `orderBy` will try to convert that object to a primitive value, before passing * it to the comparator. The following rules govern the conversion: * * 1. If the object has a `valueOf()` method that returns a primitive, its return value will be * used instead.
* (If the object has a `valueOf()` method that returns another object, then the returned object * will be used in subsequent steps.) * 2. If the object has a custom `toString()` method (i.e. not the one inherited from `Object`) that * returns a primitive, its return value will be used instead.
* (If the object has a `toString()` method that returns another object, then the returned object * will be used in subsequent steps.) * 3. No conversion; the object itself is used. * * ### The default comparator * * The default, built-in comparator should be sufficient for most usecases. In short, it compares * numbers numerically, strings alphabetically (and case-insensitively), for objects falls back to * using their index in the original collection, and sorts values of different types by type. * * More specifically, it follows these steps to determine the relative order of items: * * 1. If the compared values are of different types, compare the types themselves alphabetically. * 2. If both values are of type `string`, compare them alphabetically in a case- and * locale-insensitive way. * 3. If both values are objects, compare their indices instead. * 4. Otherwise, return: * - `0`, if the values are equal (by strict equality comparison, i.e. using `===`). * - `-1`, if the 1st value is "less than" the 2nd value (compared using the `<` operator). * - `1`, otherwise. * * **Note:** If you notice numbers not being sorted as expected, make sure they are actually being * saved as numbers and not strings. * **Note:** For the purpose of sorting, `null` values are treated as the string `'null'` (i.e. * `type: 'string'`, `value: 'null'`). This may cause unexpected sort order relative to * other values. * * @param {Array|ArrayLike} collection - The collection (array or array-like object) to sort. * @param {(Function|string|Array.)=} expression - A predicate (or list of * predicates) to be used by the comparator to determine the order of elements. * * Can be one of: * * - `Function`: A getter function. This function will be called with each item as argument and * the return value will be used for sorting. * - `string`: An Angular expression. This expression will be evaluated against each item and the * result will be used for sorting. For example, use `'label'` to sort by a property called * `label` or `'label.substring(0, 3)'` to sort by the first 3 characters of the `label` * property.
* (The result of a constant expression is interpreted as a property name to be used for * comparison. For example, use `'"special name"'` (note the extra pair of quotes) to sort by a * property called `special name`.)
* An expression can be optionally prefixed with `+` or `-` to control the sorting direction, * ascending or descending. For example, `'+label'` or `'-label'`. If no property is provided, * (e.g. `'+'` or `'-'`), the collection element itself is used in comparisons. * - `Array`: An array of function and/or string predicates. If a predicate cannot determine the * relative order of two items, the next predicate is used as a tie-breaker. * * **Note:** If the predicate is missing or empty then it defaults to `'+'`. * * @param {boolean=} reverse - If `true`, reverse the sorting order. * @param {(Function)=} comparator - The comparator function used to determine the relative order of * value pairs. If omitted, the built-in comparator will be used. * * @returns {Array} - The sorted array. * * * @example * ### Ordering a table with `ngRepeat` * * The example below demonstrates a simple {@link ngRepeat ngRepeat}, where the data is sorted by * age in descending order (expression is set to `'-age'`). The `comparator` is not set, which means * it defaults to the built-in comparator. *
Name Phone Number Age
{{friend.name}} {{friend.phone}} {{friend.age}}
angular.module('orderByExample1', []) .controller('ExampleController', ['$scope', function($scope) { $scope.friends = [ {name: 'John', phone: '555-1212', age: 10}, {name: 'Mary', phone: '555-9876', age: 19}, {name: 'Mike', phone: '555-4321', age: 21}, {name: 'Adam', phone: '555-5678', age: 35}, {name: 'Julie', phone: '555-8765', age: 29} ]; }]); .friends { border-collapse: collapse; } .friends th { border-bottom: 1px solid; } .friends td, .friends th { border-left: 1px solid; padding: 5px 10px; } .friends td:first-child, .friends th:first-child { border-left: none; } // Element locators var names = element.all(by.repeater('friends').column('friend.name')); it('should sort friends by age in reverse order', function() { expect(names.get(0).getText()).toBe('Adam'); expect(names.get(1).getText()).toBe('Julie'); expect(names.get(2).getText()).toBe('Mike'); expect(names.get(3).getText()).toBe('Mary'); expect(names.get(4).getText()).toBe('John'); }); *
* * @example * ### Changing parameters dynamically * * All parameters can be changed dynamically. The next example shows how you can make the columns of * a table sortable, by binding the `expression` and `reverse` parameters to scope properties. * 
Sort by = {{propertyName}}; reverse = {{reverse}}
{{friend.name}} {{friend.phone}} {{friend.age}}
angular.module('orderByExample2', []) .controller('ExampleController', ['$scope', function($scope) { var friends = [ {name: 'John', phone: '555-1212', age: 10}, {name: 'Mary', phone: '555-9876', age: 19}, {name: 'Mike', phone: '555-4321', age: 21}, {name: 'Adam', phone: '555-5678', age: 35}, {name: 'Julie', phone: '555-8765', age: 29} ]; $scope.propertyName = 'age'; $scope.reverse = true; $scope.friends = friends; $scope.sortBy = function(propertyName) { $scope.reverse = ($scope.propertyName === propertyName) ? !$scope.reverse : false; $scope.propertyName = propertyName; }; }]); .friends { border-collapse: collapse; } .friends th { border-bottom: 1px solid; } .friends td, .friends th { border-left: 1px solid; padding: 5px 10px; } .friends td:first-child, .friends th:first-child { border-left: none; } .sortorder:after { content: '\25b2'; // BLACK UP-POINTING TRIANGLE } .sortorder.reverse:after { content: '\25bc'; // BLACK DOWN-POINTING TRIANGLE } // Element locators var unsortButton = element(by.partialButtonText('unsorted')); var nameHeader = element(by.partialButtonText('Name')); var phoneHeader = element(by.partialButtonText('Phone')); var ageHeader = element(by.partialButtonText('Age')); var firstName = element(by.repeater('friends').column('friend.name').row(0)); var lastName = element(by.repeater('friends').column('friend.name').row(4)); it('should sort friends by some property, when clicking on the column header', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); phoneHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Mary'); nameHeader.click(); expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('Mike'); ageHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Adam'); }); it('should sort friends in reverse order, when clicking on the same column', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); ageHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Adam'); ageHeader.click(); expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); }); it('should restore the original order, when clicking "Set to unsorted"', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); unsortButton.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Julie'); }); *
* * @example * ### Using `orderBy` inside a controller * * It is also possible to call the `orderBy` filter manually, by injecting `orderByFilter`, and * calling it with the desired parameters. (Alternatively, you could inject the `$filter` factory * and retrieve the `orderBy` filter with `$filter('orderBy')`.) * 
Sort by = {{propertyName}}; reverse = {{reverse}}
{{friend.name}} {{friend.phone}} {{friend.age}}
angular.module('orderByExample3', []) .controller('ExampleController', ['$scope', 'orderByFilter', function($scope, orderBy) { var friends = [ {name: 'John', phone: '555-1212', age: 10}, {name: 'Mary', phone: '555-9876', age: 19}, {name: 'Mike', phone: '555-4321', age: 21}, {name: 'Adam', phone: '555-5678', age: 35}, {name: 'Julie', phone: '555-8765', age: 29} ]; $scope.propertyName = 'age'; $scope.reverse = true; $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse); $scope.sortBy = function(propertyName) { $scope.reverse = (propertyName !== null && $scope.propertyName === propertyName) ? !$scope.reverse : false; $scope.propertyName = propertyName; $scope.friends = orderBy(friends, $scope.propertyName, $scope.reverse); }; }]); .friends { border-collapse: collapse; } .friends th { border-bottom: 1px solid; } .friends td, .friends th { border-left: 1px solid; padding: 5px 10px; } .friends td:first-child, .friends th:first-child { border-left: none; } .sortorder:after { content: '\25b2'; // BLACK UP-POINTING TRIANGLE } .sortorder.reverse:after { content: '\25bc'; // BLACK DOWN-POINTING TRIANGLE } // Element locators var unsortButton = element(by.partialButtonText('unsorted')); var nameHeader = element(by.partialButtonText('Name')); var phoneHeader = element(by.partialButtonText('Phone')); var ageHeader = element(by.partialButtonText('Age')); var firstName = element(by.repeater('friends').column('friend.name').row(0)); var lastName = element(by.repeater('friends').column('friend.name').row(4)); it('should sort friends by some property, when clicking on the column header', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); phoneHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Mary'); nameHeader.click(); expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('Mike'); ageHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Adam'); }); it('should sort friends in reverse order, when clicking on the same column', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); ageHeader.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Adam'); ageHeader.click(); expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); }); it('should restore the original order, when clicking "Set to unsorted"', function() { expect(firstName.getText()).toBe('Adam'); expect(lastName.getText()).toBe('John'); unsortButton.click(); expect(firstName.getText()).toBe('John'); expect(lastName.getText()).toBe('Julie'); }); *
* * @example * ### Using a custom comparator * * If you have very specific requirements about the way items are sorted, you can pass your own * comparator function. For example, you might need to compare some strings in a locale-sensitive * way. (When specifying a custom comparator, you also need to pass a value for the `reverse` * argument - passing `false` retains the default sorting order, i.e. ascending.) *

Locale-sensitive Comparator

Name Favorite Letter
{{friend.name}} {{friend.favoriteLetter}}

Default Comparator

Name Favorite Letter
{{friend.name}} {{friend.favoriteLetter}}
angular.module('orderByExample4', []) .controller('ExampleController', ['$scope', function($scope) { $scope.friends = [ {name: 'John', favoriteLetter: 'Ä'}, {name: 'Mary', favoriteLetter: 'Ü'}, {name: 'Mike', favoriteLetter: 'Ö'}, {name: 'Adam', favoriteLetter: 'H'}, {name: 'Julie', favoriteLetter: 'Z'} ]; $scope.localeSensitiveComparator = function(v1, v2) { // If we don't get strings, just compare by index if (v1.type !== 'string' || v2.type !== 'string') { return (v1.index < v2.index) ? -1 : 1; } // Compare strings alphabetically, taking locale into account return v1.value.localeCompare(v2.value); }; }]); .friends-container { display: inline-block; margin: 0 30px; } .friends { border-collapse: collapse; } .friends th { border-bottom: 1px solid; } .friends td, .friends th { border-left: 1px solid; padding: 5px 10px; } .friends td:first-child, .friends th:first-child { border-left: none; } // Element locators var container = element(by.css('.custom-comparator')); var names = container.all(by.repeater('friends').column('friend.name')); it('should sort friends by favorite letter (in correct alphabetical order)', function() { expect(names.get(0).getText()).toBe('John'); expect(names.get(1).getText()).toBe('Adam'); expect(names.get(2).getText()).toBe('Mike'); expect(names.get(3).getText()).toBe('Mary'); expect(names.get(4).getText()).toBe('Julie'); }); * */ orderByFilter.$inject = ['$parse']; function orderByFilter($parse) { return function(array, sortPredicate, reverseOrder, compareFn) { if (array == null) return array; if (!isArrayLike(array)) { throw minErr('orderBy')('notarray', 'Expected array but received: {0}', array); } if (!isArray(sortPredicate)) { sortPredicate = [sortPredicate]; } if (sortPredicate.length === 0) { sortPredicate = ['+']; } var predicates = processPredicates(sortPredicate); var descending = reverseOrder ? -1 : 1; // Define the `compare()` function. Use a default comparator if none is specified. var compare = isFunction(compareFn) ? compareFn : defaultCompare; // The next three lines are a version of a Swartzian Transform idiom from Perl // (sometimes called the Decorate-Sort-Undecorate idiom) // See https://en.wikipedia.org/wiki/Schwartzian_transform var compareValues = Array.prototype.map.call(array, getComparisonObject); compareValues.sort(doComparison); array = compareValues.map(function(item) { return item.value; }); return array; function getComparisonObject(value, index) { // NOTE: We are adding an extra `tieBreaker` value based on the element's index. // This will be used to keep the sort stable when none of the input predicates can // distinguish between two elements. return { value: value, tieBreaker: {value: index, type: 'number', index: index}, predicateValues: predicates.map(function(predicate) { return getPredicateValue(predicate.get(value), index); }) }; } function doComparison(v1, v2) { for (var i = 0, ii = predicates.length; i < ii; i++) { var result = compare(v1.predicateValues[i], v2.predicateValues[i]); if (result) { return result * predicates[i].descending * descending; } } return compare(v1.tieBreaker, v2.tieBreaker) * descending; } }; function processPredicates(sortPredicates) { return sortPredicates.map(function(predicate) { var descending = 1, get = identity; if (isFunction(predicate)) { get = predicate; } else if (isString(predicate)) { if ((predicate.charAt(0) === '+' || predicate.charAt(0) === '-')) { descending = predicate.charAt(0) === '-' ? -1 : 1; predicate = predicate.substring(1); } if (predicate !== '') { get = $parse(predicate); if (get.constant) { var key = get(); get = function(value) { return value[key]; }; } } } return {get: get, descending: descending}; }); } function isPrimitive(value) { switch (typeof value) { case 'number': /* falls through */ case 'boolean': /* falls through */ case 'string': return true; default: return false; } } function objectValue(value) { // If `valueOf` is a valid function use that if (isFunction(value.valueOf)) { value = value.valueOf(); if (isPrimitive(value)) return value; } // If `toString` is a valid function and not the one from `Object.prototype` use that if (hasCustomToString(value)) { value = value.toString(); if (isPrimitive(value)) return value; } return value; } function getPredicateValue(value, index) { var type = typeof value; if (value === null) { type = 'string'; value = 'null'; } else if (type === 'object') { value = objectValue(value); } return {value: value, type: type, index: index}; } function defaultCompare(v1, v2) { var result = 0; var type1 = v1.type; var type2 = v2.type; if (type1 === type2) { var value1 = v1.value; var value2 = v2.value; if (type1 === 'string') { // Compare strings case-insensitively value1 = value1.toLowerCase(); value2 = value2.toLowerCase(); } else if (type1 === 'object') { // For basic objects, use the position of the object // in the collection instead of the value if (isObject(value1)) value1 = v1.index; if (isObject(value2)) value2 = v2.index; } if (value1 !== value2) { result = value1 < value2 ? -1 : 1; } } else { result = type1 < type2 ? -1 : 1; } return result; } } function ngDirective(directive) { if (isFunction(directive)) { directive = { link: directive }; } directive.restrict = directive.restrict || 'AC'; return valueFn(directive); } /** * @ngdoc directive * @name a * @restrict E * * @description * Modifies the default behavior of the html a tag so that the default action is prevented when * the href attribute is empty. * * For dynamically creating `href` attributes for a tags, see the {@link ng.ngHref `ngHref`} directive. */ var htmlAnchorDirective = valueFn({ restrict: 'E', compile: function(element, attr) { if (!attr.href && !attr.xlinkHref) { return function(scope, element) { // If the linked element is not an anchor tag anymore, do nothing if (element[0].nodeName.toLowerCase() !== 'a') return; // SVGAElement does not use the href attribute, but rather the 'xlinkHref' attribute. var href = toString.call(element.prop('href')) === '[object SVGAnimatedString]' ? 'xlink:href' : 'href'; element.on('click', function(event) { // if we have no href url, then don't navigate anywhere. if (!element.attr(href)) { event.preventDefault(); } }); }; } } }); /** * @ngdoc directive * @name ngHref * @restrict A * @priority 99 * * @description * Using Angular markup like `{{hash}}` in an href attribute will * make the link go to the wrong URL if the user clicks it before * Angular has a chance to replace the `{{hash}}` markup with its * value. Until Angular replaces the markup the link will be broken * and will most likely return a 404 error. The `ngHref` directive * solves this problem. * * The wrong way to write it: * ```html * link1 * ``` * * The correct way to write it: * ```html * link1 * ``` * * @element A * @param {template} ngHref any string which can contain `{{}}` markup. * * @example * This example shows various combinations of `href`, `ng-href` and `ng-click` attributes * in links and their different behaviors:
link 1 (link, don't reload)
link 2 (link, don't reload)
link 3 (link, reload!)
anchor (link, don't reload)
anchor (no link)
link (link, change location) it('should execute ng-click but not reload when href without value', function() { element(by.id('link-1')).click(); expect(element(by.model('value')).getAttribute('value')).toEqual('1'); expect(element(by.id('link-1')).getAttribute('href')).toBe(''); }); it('should execute ng-click but not reload when href empty string', function() { element(by.id('link-2')).click(); expect(element(by.model('value')).getAttribute('value')).toEqual('2'); expect(element(by.id('link-2')).getAttribute('href')).toBe(''); }); it('should execute ng-click and change url when ng-href specified', function() { expect(element(by.id('link-3')).getAttribute('href')).toMatch(/\/123$/); element(by.id('link-3')).click(); // At this point, we navigate away from an Angular page, so we need // to use browser.driver to get the base webdriver. browser.wait(function() { return browser.driver.getCurrentUrl().then(function(url) { return url.match(/\/123$/); }); }, 5000, 'page should navigate to /123'); }); it('should execute ng-click but not reload when href empty string and name specified', function() { element(by.id('link-4')).click(); expect(element(by.model('value')).getAttribute('value')).toEqual('4'); expect(element(by.id('link-4')).getAttribute('href')).toBe(''); }); it('should execute ng-click but not reload when no href but name specified', function() { element(by.id('link-5')).click(); expect(element(by.model('value')).getAttribute('value')).toEqual('5'); expect(element(by.id('link-5')).getAttribute('href')).toBe(null); }); it('should only change url when only ng-href', function() { element(by.model('value')).clear(); element(by.model('value')).sendKeys('6'); expect(element(by.id('link-6')).getAttribute('href')).toMatch(/\/6$/); element(by.id('link-6')).click(); // At this point, we navigate away from an Angular page, so we need // to use browser.driver to get the base webdriver. browser.wait(function() { return browser.driver.getCurrentUrl().then(function(url) { return url.match(/\/6$/); }); }, 5000, 'page should navigate to /6'); }); */ /** * @ngdoc directive * @name ngSrc * @restrict A * @priority 99 * * @description * Using Angular markup like `{{hash}}` in a `src` attribute doesn't * work right: The browser will fetch from the URL with the literal * text `{{hash}}` until Angular replaces the expression inside * `{{hash}}`. The `ngSrc` directive solves this problem. * * The buggy way to write it: * ```html * Description * ``` * * The correct way to write it: * ```html * Description * ``` * * @element IMG * @param {template} ngSrc any string which can contain `{{}}` markup. */ /** * @ngdoc directive * @name ngSrcset * @restrict A * @priority 99 * * @description * Using Angular markup like `{{hash}}` in a `srcset` attribute doesn't * work right: The browser will fetch from the URL with the literal * text `{{hash}}` until Angular replaces the expression inside * `{{hash}}`. The `ngSrcset` directive solves this problem. * * The buggy way to write it: * ```html * Description * ``` * * The correct way to write it: * ```html * Description * ``` * * @element IMG * @param {template} ngSrcset any string which can contain `{{}}` markup. */ /** * @ngdoc directive * @name ngDisabled * @restrict A * @priority 100 * * @description * * This directive sets the `disabled` attribute on the element if the * {@link guide/expression expression} inside `ngDisabled` evaluates to truthy. * * A special directive is necessary because we cannot use interpolation inside the `disabled` * attribute. See the {@link guide/interpolation interpolation guide} for more info. * * @example
it('should toggle button', function() { expect(element(by.css('button')).getAttribute('disabled')).toBeFalsy(); element(by.model('checked')).click(); expect(element(by.css('button')).getAttribute('disabled')).toBeTruthy(); }); * * @element INPUT * @param {expression} ngDisabled If the {@link guide/expression expression} is truthy, * then the `disabled` attribute will be set on the element */ /** * @ngdoc directive * @name ngChecked * @restrict A * @priority 100 * * @description * Sets the `checked` attribute on the element, if the expression inside `ngChecked` is truthy. * * Note that this directive should not be used together with {@link ngModel `ngModel`}, * as this can lead to unexpected behavior. * * A special directive is necessary because we cannot use interpolation inside the `checked` * attribute. See the {@link guide/interpolation interpolation guide} for more info. * * @example
it('should check both checkBoxes', function() { expect(element(by.id('checkSlave')).getAttribute('checked')).toBeFalsy(); element(by.model('master')).click(); expect(element(by.id('checkSlave')).getAttribute('checked')).toBeTruthy(); }); * * @element INPUT * @param {expression} ngChecked If the {@link guide/expression expression} is truthy, * then the `checked` attribute will be set on the element */ /** * @ngdoc directive * @name ngReadonly * @restrict A * @priority 100 * * @description * * Sets the `readonly` attribute on the element, if the expression inside `ngReadonly` is truthy. * Note that `readonly` applies only to `input` elements with specific types. [See the input docs on * MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input#attr-readonly) for more information. * * A special directive is necessary because we cannot use interpolation inside the `readonly` * attribute. See the {@link guide/interpolation interpolation guide} for more info. * * @example
it('should toggle readonly attr', function() { expect(element(by.css('[type="text"]')).getAttribute('readonly')).toBeFalsy(); element(by.model('checked')).click(); expect(element(by.css('[type="text"]')).getAttribute('readonly')).toBeTruthy(); }); * * @element INPUT * @param {expression} ngReadonly If the {@link guide/expression expression} is truthy, * then special attribute "readonly" will be set on the element */ /** * @ngdoc directive * @name ngSelected * @restrict A * @priority 100 * * @description * * Sets the `selected` attribute on the element, if the expression inside `ngSelected` is truthy. * * A special directive is necessary because we cannot use interpolation inside the `selected` * attribute. See the {@link guide/interpolation interpolation guide} for more info. * *
* **Note:** `ngSelected` does not interact with the `select` and `ngModel` directives, it only * sets the `selected` attribute on the element. If you are using `ngModel` on the select, you * should not use `ngSelected` on the options, as `ngModel` will set the select value and * selected options. *
* * @example
it('should select Greetings!', function() { expect(element(by.id('greet')).getAttribute('selected')).toBeFalsy(); element(by.model('selected')).click(); expect(element(by.id('greet')).getAttribute('selected')).toBeTruthy(); }); * * @element OPTION * @param {expression} ngSelected If the {@link guide/expression expression} is truthy, * then special attribute "selected" will be set on the element */ /** * @ngdoc directive * @name ngOpen * @restrict A * @priority 100 * * @description * * Sets the `open` attribute on the element, if the expression inside `ngOpen` is truthy. * * A special directive is necessary because we cannot use interpolation inside the `open` * attribute. See the {@link guide/interpolation interpolation guide} for more info. * * ## A note about browser compatibility * * Edge, Firefox, and Internet Explorer do not support the `details` element, it is * recommended to use {@link ng.ngShow} and {@link ng.ngHide} instead. * * @example
Show/Hide me
it('should toggle open', function() { expect(element(by.id('details')).getAttribute('open')).toBeFalsy(); element(by.model('open')).click(); expect(element(by.id('details')).getAttribute('open')).toBeTruthy(); }); * * @element DETAILS * @param {expression} ngOpen If the {@link guide/expression expression} is truthy, * then special attribute "open" will be set on the element */ var ngAttributeAliasDirectives = {}; // boolean attrs are evaluated forEach(BOOLEAN_ATTR, function(propName, attrName) { // binding to multiple is not supported if (propName === 'multiple') return; function defaultLinkFn(scope, element, attr) { scope.$watch(attr[normalized], function ngBooleanAttrWatchAction(value) { attr.$set(attrName, !!value); }); } var normalized = directiveNormalize('ng-' + attrName); var linkFn = defaultLinkFn; if (propName === 'checked') { linkFn = function(scope, element, attr) { // ensuring ngChecked doesn't interfere with ngModel when both are set on the same input if (attr.ngModel !== attr[normalized]) { defaultLinkFn(scope, element, attr); } }; } ngAttributeAliasDirectives[normalized] = function() { return { restrict: 'A', priority: 100, link: linkFn }; }; }); // aliased input attrs are evaluated forEach(ALIASED_ATTR, function(htmlAttr, ngAttr) { ngAttributeAliasDirectives[ngAttr] = function() { return { priority: 100, link: function(scope, element, attr) { //special case ngPattern when a literal regular expression value //is used as the expression (this way we don't have to watch anything). if (ngAttr === 'ngPattern' && attr.ngPattern.charAt(0) === '/') { var match = attr.ngPattern.match(REGEX_STRING_REGEXP); if (match) { attr.$set('ngPattern', new RegExp(match[1], match[2])); return; } } scope.$watch(attr[ngAttr], function ngAttrAliasWatchAction(value) { attr.$set(ngAttr, value); }); } }; }; }); // ng-src, ng-srcset, ng-href are interpolated forEach(['src', 'srcset', 'href'], function(attrName) { var normalized = directiveNormalize('ng-' + attrName); ngAttributeAliasDirectives[normalized] = function() { return { priority: 99, // it needs to run after the attributes are interpolated link: function(scope, element, attr) { var propName = attrName, name = attrName; if (attrName === 'href' && toString.call(element.prop('href')) === '[object SVGAnimatedString]') { name = 'xlinkHref'; attr.$attr[name] = 'xlink:href'; propName = null; } attr.$observe(normalized, function(value) { if (!value) { if (attrName === 'href') { attr.$set(name, null); } return; } attr.$set(name, value); // Support: IE 9-11 only // On IE, if "ng:src" directive declaration is used and "src" attribute doesn't exist // then calling element.setAttribute('src', 'foo') doesn't do anything, so we need // to set the property as well to achieve the desired effect. // We use attr[attrName] value since $set can sanitize the url. if (msie && propName) element.prop(propName, attr[name]); }); } }; }; }); /* global -nullFormCtrl, -PENDING_CLASS, -SUBMITTED_CLASS */ var nullFormCtrl = { $addControl: noop, $$renameControl: nullFormRenameControl, $removeControl: noop, $setValidity: noop, $setDirty: noop, $setPristine: noop, $setSubmitted: noop }, PENDING_CLASS = 'ng-pending', SUBMITTED_CLASS = 'ng-submitted'; function nullFormRenameControl(control, name) { control.$name = name; } /** * @ngdoc type * @name form.FormController * * @property {boolean} $pristine True if user has not interacted with the form yet. * @property {boolean} $dirty True if user has already interacted with the form. * @property {boolean} $valid True if all of the containing forms and controls are valid. * @property {boolean} $invalid True if at least one containing control or form is invalid. * @property {boolean} $pending True if at least one containing control or form is pending. * @property {boolean} $submitted True if user has submitted the form even if its invalid. * * @property {Object} $error Is an object hash, containing references to controls or * forms with failing validators, where: * * - keys are validation tokens (error names), * - values are arrays of controls or forms that have a failing validator for given error name. * * Built-in validation tokens: * * - `email` * - `max` * - `maxlength` * - `min` * - `minlength` * - `number` * - `pattern` * - `required` * - `url` * - `date` * - `datetimelocal` * - `time` * - `week` * - `month` * * @description * `FormController` keeps track of all its controls and nested forms as well as the state of them, * such as being valid/invalid or dirty/pristine. * * Each {@link ng.directive:form form} directive creates an instance * of `FormController`. * */ //asks for $scope to fool the BC controller module FormController.$inject = ['$element', '$attrs', '$scope', '$animate', '$interpolate']; function FormController($element, $attrs, $scope, $animate, $interpolate) { this.$$controls = []; // init state this.$error = {}; this.$$success = {}; this.$pending = undefined; this.$name = $interpolate($attrs.name || $attrs.ngForm || '')($scope); this.$dirty = false; this.$pristine = true; this.$valid = true; this.$invalid = false; this.$submitted = false; this.$$parentForm = nullFormCtrl; this.$$element = $element; this.$$animate = $animate; setupValidity(this); } FormController.prototype = { /** * @ngdoc method * @name form.FormController#$rollbackViewValue * * @description * Rollback all form controls pending updates to the `$modelValue`. * * Updates may be pending by a debounced event or because the input is waiting for a some future * event defined in `ng-model-options`. This method is typically needed by the reset button of * a form that uses `ng-model-options` to pend updates. */ $rollbackViewValue: function() { forEach(this.$$controls, function(control) { control.$rollbackViewValue(); }); }, /** * @ngdoc method * @name form.FormController#$commitViewValue * * @description * Commit all form controls pending updates to the `$modelValue`. * * Updates may be pending by a debounced event or because the input is waiting for a some future * event defined in `ng-model-options`. This method is rarely needed as `NgModelController` * usually handles calling this in response to input events. */ $commitViewValue: function() { forEach(this.$$controls, function(control) { control.$commitViewValue(); }); }, /** * @ngdoc method * @name form.FormController#$addControl * @param {object} control control object, either a {@link form.FormController} or an * {@link ngModel.NgModelController} * * @description * Register a control with the form. Input elements using ngModelController do this automatically * when they are linked. * * Note that the current state of the control will not be reflected on the new parent form. This * is not an issue with normal use, as freshly compiled and linked controls are in a `$pristine` * state. * * However, if the method is used programmatically, for example by adding dynamically created controls, * or controls that have been previously removed without destroying their corresponding DOM element, * it's the developers responsibility to make sure the current state propagates to the parent form. * * For example, if an input control is added that is already `$dirty` and has `$error` properties, * calling `$setDirty()` and `$validate()` afterwards will propagate the state to the parent form. */ $addControl: function(control) { // Breaking change - before, inputs whose name was "hasOwnProperty" were quietly ignored // and not added to the scope. Now we throw an error. assertNotHasOwnProperty(control.$name, 'input'); this.$$controls.push(control); if (control.$name) { this[control.$name] = control; } control.$$parentForm = this; }, // Private API: rename a form control $$renameControl: function(control, newName) { var oldName = control.$name; if (this[oldName] === control) { delete this[oldName]; } this[newName] = control; control.$name = newName; }, /** * @ngdoc method * @name form.FormController#$removeControl * @param {object} control control object, either a {@link form.FormController} or an * {@link ngModel.NgModelController} * * @description * Deregister a control from the form. * * Input elements using ngModelController do this automatically when they are destroyed. * * Note that only the removed control's validation state (`$errors`etc.) will be removed from the * form. `$dirty`, `$submitted` states will not be changed, because the expected behavior can be * different from case to case. For example, removing the only `$dirty` control from a form may or * may not mean that the form is still `$dirty`. */ $removeControl: function(control) { if (control.$name && this[control.$name] === control) { delete this[control.$name]; } forEach(this.$pending, function(value, name) { // eslint-disable-next-line no-invalid-this this.$setValidity(name, null, control); }, this); forEach(this.$error, function(value, name) { // eslint-disable-next-line no-invalid-this this.$setValidity(name, null, control); }, this); forEach(this.$$success, function(value, name) { // eslint-disable-next-line no-invalid-this this.$setValidity(name, null, control); }, this); arrayRemove(this.$$controls, control); control.$$parentForm = nullFormCtrl; }, /** * @ngdoc method * @name form.FormController#$setDirty * * @description * Sets the form to a dirty state. * * This method can be called to add the 'ng-dirty' class and set the form to a dirty * state (ng-dirty class). This method will also propagate to parent forms. */ $setDirty: function() { this.$$animate.removeClass(this.$$element, PRISTINE_CLASS); this.$$animate.addClass(this.$$element, DIRTY_CLASS); this.$dirty = true; this.$pristine = false; this.$$parentForm.$setDirty(); }, /** * @ngdoc method * @name form.FormController#$setPristine * * @description * Sets the form to its pristine state. * * This method sets the form's `$pristine` state to true, the `$dirty` state to false, removes * the `ng-dirty` class and adds the `ng-pristine` class. Additionally, it sets the `$submitted` * state to false. * * This method will also propagate to all the controls contained in this form. * * Setting a form back to a pristine state is often useful when we want to 'reuse' a form after * saving or resetting it. */ $setPristine: function() { this.$$animate.setClass(this.$$element, PRISTINE_CLASS, DIRTY_CLASS + ' ' + SUBMITTED_CLASS); this.$dirty = false; this.$pristine = true; this.$submitted = false; forEach(this.$$controls, function(control) { control.$setPristine(); }); }, /** * @ngdoc method * @name form.FormController#$setUntouched * * @description * Sets the form to its untouched state. * * This method can be called to remove the 'ng-touched' class and set the form controls to their * untouched state (ng-untouched class). * * Setting a form controls back to their untouched state is often useful when setting the form * back to its pristine state. */ $setUntouched: function() { forEach(this.$$controls, function(control) { control.$setUntouched(); }); }, /** * @ngdoc method * @name form.FormController#$setSubmitted * * @description * Sets the form to its submitted state. */ $setSubmitted: function() { this.$$animate.addClass(this.$$element, SUBMITTED_CLASS); this.$submitted = true; this.$$parentForm.$setSubmitted(); } }; /** * @ngdoc method * @name form.FormController#$setValidity * * @description * Sets the validity of a form control. * * This method will also propagate to parent forms. */ addSetValidityMethod({ clazz: FormController, set: function(object, property, controller) { var list = object[property]; if (!list) { object[property] = [controller]; } else { var index = list.indexOf(controller); if (index === -1) { list.push(controller); } } }, unset: function(object, property, controller) { var list = object[property]; if (!list) { return; } arrayRemove(list, controller); if (list.length === 0) { delete object[property]; } } }); /** * @ngdoc directive * @name ngForm * @restrict EAC * * @description * Nestable alias of {@link ng.directive:form `form`} directive. HTML * does not allow nesting of form elements. It is useful to nest forms, for example if the validity of a * sub-group of controls needs to be determined. * * Note: the purpose of `ngForm` is to group controls, * but not to be a replacement for the `
` tag with all of its capabilities * (e.g. posting to the server, ...). * * @param {string=} ngForm|name Name of the form. If specified, the form controller will be published into * related scope, under this name. * */ /** * @ngdoc directive * @name form * @restrict E * * @description * Directive that instantiates * {@link form.FormController FormController}. * * If the `name` attribute is specified, the form controller is published onto the current scope under * this name. * * # Alias: {@link ng.directive:ngForm `ngForm`} * * In Angular, forms can be nested. This means that the outer form is valid when all of the child * forms are valid as well. However, browsers do not allow nesting of `` elements, so * Angular provides the {@link ng.directive:ngForm `ngForm`} directive, which behaves identically to * `form` but can be nested. Nested forms can be useful, for example, if the validity of a sub-group * of controls needs to be determined. * * # CSS classes * - `ng-valid` is set if the form is valid. * - `ng-invalid` is set if the form is invalid. * - `ng-pending` is set if the form is pending. * - `ng-pristine` is set if the form is pristine. * - `ng-dirty` is set if the form is dirty. * - `ng-submitted` is set if the form was submitted. * * Keep in mind that ngAnimate can detect each of these classes when added and removed. * * * # Submitting a form and preventing the default action * * Since the role of forms in client-side Angular applications is different than in classical * roundtrip apps, it is desirable for the browser not to translate the form submission into a full * page reload that sends the data to the server. Instead some javascript logic should be triggered * to handle the form submission in an application-specific way. * * For this reason, Angular prevents the default action (form submission to the server) unless the * `` element has an `action` attribute specified. * * You can use one of the following two ways to specify what javascript method should be called when * a form is submitted: * * - {@link ng.directive:ngSubmit ngSubmit} directive on the form element * - {@link ng.directive:ngClick ngClick} directive on the first * button or input field of type submit (input[type=submit]) * * To prevent double execution of the handler, use only one of the {@link ng.directive:ngSubmit ngSubmit} * or {@link ng.directive:ngClick ngClick} directives. * This is because of the following form submission rules in the HTML specification: * * - If a form has only one input field then hitting enter in this field triggers form submit * (`ngSubmit`) * - if a form has 2+ input fields and no buttons or input[type=submit] then hitting enter * doesn't trigger submit * - if a form has one or more input fields and one or more buttons or input[type=submit] then * hitting enter in any of the input fields will trigger the click handler on the *first* button or * input[type=submit] (`ngClick`) *and* a submit handler on the enclosing form (`ngSubmit`) * * Any pending `ngModelOptions` changes will take place immediately when an enclosing form is * submitted. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit` * to have access to the updated model. * * ## Animation Hooks * * Animations in ngForm are triggered when any of the associated CSS classes are added and removed. * These classes are: `.ng-pristine`, `.ng-dirty`, `.ng-invalid` and `.ng-valid` as well as any * other validations that are performed within the form. Animations in ngForm are similar to how * they work in ngClass and animations can be hooked into using CSS transitions, keyframes as well * as JS animations. * * The following example shows a simple way to utilize CSS transitions to style a form element * that has been rendered as invalid after it has been validated: * * 
 * //be sure to include ngAnimate as a module to hook into more
 * //advanced animations
 * .my-form {
 *   transition:0.5s linear all;
 *   background: white;
 * }
 * .my-form.ng-invalid {
 *   background: red;
 *   color:white;
 * }
 *
* * @example userType: Required!
userType = {{userType}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
 it('should initialize to model', function() { var userType = element(by.binding('userType')); var valid = element(by.binding('myForm.input.$valid')); expect(userType.getText()).toContain('guest'); expect(valid.getText()).toContain('true'); }); it('should be invalid if empty', function() { var userType = element(by.binding('userType')); var valid = element(by.binding('myForm.input.$valid')); var userInput = element(by.model('userType')); userInput.clear(); userInput.sendKeys(''); expect(userType.getText()).toEqual('userType ='); expect(valid.getText()).toContain('false'); });
* * @param {string=} name Name of the form. If specified, the form controller will be published into * related scope, under this name. */ var formDirectiveFactory = function(isNgForm) { return ['$timeout', '$parse', function($timeout, $parse) { var formDirective = { name: 'form', restrict: isNgForm ? 'EAC' : 'E', require: ['form', '^^?form'], //first is the form's own ctrl, second is an optional parent form controller: FormController, compile: function ngFormCompile(formElement, attr) { // Setup initial state of the control formElement.addClass(PRISTINE_CLASS).addClass(VALID_CLASS); var nameAttr = attr.name ? 'name' : (isNgForm && attr.ngForm ? 'ngForm' : false); return { pre: function ngFormPreLink(scope, formElement, attr, ctrls) { var controller = ctrls[0]; // if `action` attr is not present on the form, prevent the default action (submission) if (!('action' in attr)) { // we can't use jq events because if a form is destroyed during submission the default // action is not prevented. see #1238 // // IE 9 is not affected because it doesn't fire a submit event and try to do a full // page reload if the form was destroyed by submission of the form via a click handler // on a button in the form. Looks like an IE9 specific bug. var handleFormSubmission = function(event) { scope.$apply(function() { controller.$commitViewValue(); controller.$setSubmitted(); }); event.preventDefault(); }; formElement[0].addEventListener('submit', handleFormSubmission); // unregister the preventDefault listener so that we don't not leak memory but in a // way that will achieve the prevention of the default action. formElement.on('$destroy', function() { $timeout(function() { formElement[0].removeEventListener('submit', handleFormSubmission); }, 0, false); }); } var parentFormCtrl = ctrls[1] || controller.$$parentForm; parentFormCtrl.$addControl(controller); var setter = nameAttr ? getSetter(controller.$name) : noop; if (nameAttr) { setter(scope, controller); attr.$observe(nameAttr, function(newValue) { if (controller.$name === newValue) return; setter(scope, undefined); controller.$$parentForm.$$renameControl(controller, newValue); setter = getSetter(controller.$name); setter(scope, controller); }); } formElement.on('$destroy', function() { controller.$$parentForm.$removeControl(controller); setter(scope, undefined); extend(controller, nullFormCtrl); //stop propagating child destruction handlers upwards }); } }; } }; return formDirective; function getSetter(expression) { if (expression === '') { //create an assignable expression, so forms with an empty name can be renamed later return $parse('this[""]').assign; } return $parse(expression).assign || noop; } }]; }; var formDirective = formDirectiveFactory(); var ngFormDirective = formDirectiveFactory(true); // helper methods function setupValidity(instance) { instance.$$classCache = {}; instance.$$classCache[INVALID_CLASS] = !(instance.$$classCache[VALID_CLASS] = instance.$$element.hasClass(VALID_CLASS)); } function addSetValidityMethod(context) { var clazz = context.clazz, set = context.set, unset = context.unset; clazz.prototype.$setValidity = function(validationErrorKey, state, controller) { if (isUndefined(state)) { createAndSet(this, '$pending', validationErrorKey, controller); } else { unsetAndCleanup(this, '$pending', validationErrorKey, controller); } if (!isBoolean(state)) { unset(this.$error, validationErrorKey, controller); unset(this.$$success, validationErrorKey, controller); } else { if (state) { unset(this.$error, validationErrorKey, controller); set(this.$$success, validationErrorKey, controller); } else { set(this.$error, validationErrorKey, controller); unset(this.$$success, validationErrorKey, controller); } } if (this.$pending) { cachedToggleClass(this, PENDING_CLASS, true); this.$valid = this.$invalid = undefined; toggleValidationCss(this, '', null); } else { cachedToggleClass(this, PENDING_CLASS, false); this.$valid = isObjectEmpty(this.$error); this.$invalid = !this.$valid; toggleValidationCss(this, '', this.$valid); } // re-read the state as the set/unset methods could have // combined state in this.$error[validationError] (used for forms), // where setting/unsetting only increments/decrements the value, // and does not replace it. var combinedState; if (this.$pending && this.$pending[validationErrorKey]) { combinedState = undefined; } else if (this.$error[validationErrorKey]) { combinedState = false; } else if (this.$$success[validationErrorKey]) { combinedState = true; } else { combinedState = null; } toggleValidationCss(this, validationErrorKey, combinedState); this.$$parentForm.$setValidity(validationErrorKey, combinedState, this); }; function createAndSet(ctrl, name, value, controller) { if (!ctrl[name]) { ctrl[name] = {}; } set(ctrl[name], value, controller); } function unsetAndCleanup(ctrl, name, value, controller) { if (ctrl[name]) { unset(ctrl[name], value, controller); } if (isObjectEmpty(ctrl[name])) { ctrl[name] = undefined; } } function cachedToggleClass(ctrl, className, switchValue) { if (switchValue && !ctrl.$$classCache[className]) { ctrl.$$animate.addClass(ctrl.$$element, className); ctrl.$$classCache[className] = true; } else if (!switchValue && ctrl.$$classCache[className]) { ctrl.$$animate.removeClass(ctrl.$$element, className); ctrl.$$classCache[className] = false; } } function toggleValidationCss(ctrl, validationErrorKey, isValid) { validationErrorKey = validationErrorKey ? '-' + snake_case(validationErrorKey, '-') : ''; cachedToggleClass(ctrl, VALID_CLASS + validationErrorKey, isValid === true); cachedToggleClass(ctrl, INVALID_CLASS + validationErrorKey, isValid === false); } } function isObjectEmpty(obj) { if (obj) { for (var prop in obj) { if (obj.hasOwnProperty(prop)) { return false; } } } return true; } /* global VALID_CLASS: false, INVALID_CLASS: false, PRISTINE_CLASS: false, DIRTY_CLASS: false, ngModelMinErr: false */ // Regex code was initially obtained from SO prior to modification: https://stackoverflow.com/questions/3143070/javascript-regex-iso-datetime#answer-3143231 var ISO_DATE_REGEXP = /^\d{4,}-[01]\d-[0-3]\dT[0-2]\d:[0-5]\d:[0-5]\d\.\d+(?:[+-][0-2]\d:[0-5]\d|Z)$/; // See valid URLs in RFC3987 (http://tools.ietf.org/html/rfc3987) // Note: We are being more lenient, because browsers are too. // 1. Scheme // 2. Slashes // 3. Username // 4. Password // 5. Hostname // 6. Port // 7. Path // 8. Query // 9. Fragment // 1111111111111111 222 333333 44444 55555555555555555555555 666 77777777 8888888 999 var URL_REGEXP = /^[a-z][a-z\d.+-]*:\/*(?:[^:@]+(?::[^@]+)?@)?(?:[^\s:/?#]+|\[[a-f\d:]+])(?::\d+)?(?:\/[^?#]*)?(?:\?[^#]*)?(?:#.*)?$/i; // eslint-disable-next-line max-len var EMAIL_REGEXP = /^(?=.{1,254}$)(?=.{1,64}@)[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+(\.[-!#$%&'*+/0-9=?A-Z^_`a-z{|}~]+)*@[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?(\.[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?)*$/; var NUMBER_REGEXP = /^\s*(-|\+)?(\d+|(\d*(\.\d*)))([eE][+-]?\d+)?\s*$/; var DATE_REGEXP = /^(\d{4,})-(\d{2})-(\d{2})$/; var DATETIMELOCAL_REGEXP = /^(\d{4,})-(\d\d)-(\d\d)T(\d\d):(\d\d)(?::(\d\d)(\.\d{1,3})?)?$/; var WEEK_REGEXP = /^(\d{4,})-W(\d\d)$/; var MONTH_REGEXP = /^(\d{4,})-(\d\d)$/; var TIME_REGEXP = /^(\d\d):(\d\d)(?::(\d\d)(\.\d{1,3})?)?$/; var PARTIAL_VALIDATION_EVENTS = 'keydown wheel mousedown'; var PARTIAL_VALIDATION_TYPES = createMap(); forEach('date,datetime-local,month,time,week'.split(','), function(type) { PARTIAL_VALIDATION_TYPES[type] = true; }); var inputType = { /** * @ngdoc input * @name input[text] * * @description * Standard HTML text input with angular data binding, inherited by most of the `input` elements. * * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} required Adds `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than * minlength. * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than * maxlength. Setting the attribute to a negative or non-numeric value, allows view values of * any length. * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string * that contains the regular expression body that will be converted to a regular expression * as in the ngPattern directive. * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue} * does not match a RegExp found by evaluating the Angular expression given in the attribute value. * If the expression evaluates to a RegExp object, then this is used directly. * If the expression evaluates to a string, then it will be converted to a RegExp * after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to * `new RegExp('^abc$')`.
* **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to * start at the index of the last search's match, thus not taking the whole input value into * account. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input. * This parameter is ignored for input[type=password] controls, which will never trim the * input. * * @example
Required! Single word only!
text = {{example.text}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
 var text = element(by.binding('example.text')); var valid = element(by.binding('myForm.input.$valid')); var input = element(by.model('example.text')); it('should initialize to model', function() { expect(text.getText()).toContain('guest'); expect(valid.getText()).toContain('true'); }); it('should be invalid if empty', function() { input.clear(); input.sendKeys(''); expect(text.getText()).toEqual('text ='); expect(valid.getText()).toContain('false'); }); it('should be invalid if multi word', function() { input.clear(); input.sendKeys('hello world'); expect(valid.getText()).toContain('false'); }); */ 'text': textInputType, /** * @ngdoc input * @name input[date] * * @description * Input with date validation and transformation. In browsers that do not yet support * the HTML5 date input, a text element will be used. In that case, text must be entered in a valid ISO-8601 * date format (yyyy-MM-dd), for example: `2009-01-06`. Since many * modern browsers do not yet support this input type, it is important to provide cues to users on the * expected input format via a placeholder or label. * * The model must always be a Date object, otherwise Angular will throw an error. * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string. * * The timezone to be used to read/write the `Date` instance in the model can be defined using * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. This must be a * valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute * (e.g. `min="{{minDate | date:'yyyy-MM-dd'}}"`). Note that `min` will also add native HTML5 * constraint validation. * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. This must be * a valid ISO date string (yyyy-MM-dd). You can also use interpolation inside this attribute * (e.g. `max="{{maxDate | date:'yyyy-MM-dd'}}"`). Note that `max` will also add native HTML5 * constraint validation. * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO date string * the `ngMin` expression evaluates to. Note that it does not set the `min` attribute. * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO date string * the `ngMax` expression evaluates to. Note that it does not set the `max` attribute. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example
Required! Not a valid date!
value = {{example.value | date: "yyyy-MM-dd"}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
 var value = element(by.binding('example.value | date: "yyyy-MM-dd"')); var valid = element(by.binding('myForm.input.$valid')); // currently protractor/webdriver does not support // sending keys to all known HTML5 input controls // for various browsers (see https://github.com/angular/protractor/issues/562). function setInput(val) { // set the value of the element and force validation. var scr = "var ipt = document.getElementById('exampleInput'); " + "ipt.value = '" + val + "';" + "angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('" + val + "'); });"; browser.executeScript(scr); } it('should initialize to model', function() { expect(value.getText()).toContain('2013-10-22'); expect(valid.getText()).toContain('myForm.input.$valid = true'); }); it('should be invalid if empty', function() { setInput(''); expect(value.getText()).toEqual('value ='); expect(valid.getText()).toContain('myForm.input.$valid = false'); }); it('should be invalid if over max', function() { setInput('2015-01-01'); expect(value.getText()).toContain(''); expect(valid.getText()).toContain('myForm.input.$valid = false'); }); */ 'date': createDateInputType('date', DATE_REGEXP, createDateParser(DATE_REGEXP, ['yyyy', 'MM', 'dd']), 'yyyy-MM-dd'), /** * @ngdoc input * @name input[datetime-local] * * @description * Input with datetime validation and transformation. In browsers that do not yet support * the HTML5 date input, a text element will be used. In that case, the text must be entered in a valid ISO-8601 * local datetime format (yyyy-MM-ddTHH:mm:ss), for example: `2010-12-28T14:57:00`. * * The model must always be a Date object, otherwise Angular will throw an error. * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string. * * The timezone to be used to read/write the `Date` instance in the model can be defined using * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. * This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation * inside this attribute (e.g. `min="{{minDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}"`). * Note that `min` will also add native HTML5 constraint validation. * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. * This must be a valid ISO datetime format (yyyy-MM-ddTHH:mm:ss). You can also use interpolation * inside this attribute (e.g. `max="{{maxDatetimeLocal | date:'yyyy-MM-ddTHH:mm:ss'}}"`). * Note that `max` will also add native HTML5 constraint validation. * @param {(date|string)=} ngMin Sets the `min` validation error key to the Date / ISO datetime string * the `ngMin` expression evaluates to. Note that it does not set the `min` attribute. * @param {(date|string)=} ngMax Sets the `max` validation error key to the Date / ISO datetime string * the `ngMax` expression evaluates to. Note that it does not set the `max` attribute. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example
Required! Not a valid date!
value = {{example.value | date: "yyyy-MM-ddTHH:mm:ss"}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
 var value = element(by.binding('example.value | date: "yyyy-MM-ddTHH:mm:ss"')); var valid = element(by.binding('myForm.input.$valid')); // currently protractor/webdriver does not support // sending keys to all known HTML5 input controls // for various browsers (https://github.com/angular/protractor/issues/562). function setInput(val) { // set the value of the element and force validation. var scr = "var ipt = document.getElementById('exampleInput'); " + "ipt.value = '" + val + "';" + "angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('" + val + "'); });"; browser.executeScript(scr); } it('should initialize to model', function() { expect(value.getText()).toContain('2010-12-28T14:57:00'); expect(valid.getText()).toContain('myForm.input.$valid = true'); }); it('should be invalid if empty', function() { setInput(''); expect(value.getText()).toEqual('value ='); expect(valid.getText()).toContain('myForm.input.$valid = false'); }); it('should be invalid if over max', function() { setInput('2015-01-01T23:59:00'); expect(value.getText()).toContain(''); expect(valid.getText()).toContain('myForm.input.$valid = false'); }); */ 'datetime-local': createDateInputType('datetimelocal', DATETIMELOCAL_REGEXP, createDateParser(DATETIMELOCAL_REGEXP, ['yyyy', 'MM', 'dd', 'HH', 'mm', 'ss', 'sss']), 'yyyy-MM-ddTHH:mm:ss.sss'), /** * @ngdoc input * @name input[time] * * @description * Input with time validation and transformation. In browsers that do not yet support * the HTML5 time input, a text element will be used. In that case, the text must be entered in a valid ISO-8601 * local time format (HH:mm:ss), for example: `14:57:00`. Model must be a Date object. This binding will always output a * Date object to the model of January 1, 1970, or local date `new Date(1970, 0, 1, HH, mm, ss)`. * * The model must always be a Date object, otherwise Angular will throw an error. * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string. * * The timezone to be used to read/write the `Date` instance in the model can be defined using * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. * This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this * attribute (e.g. `min="{{minTime | date:'HH:mm:ss'}}"`). Note that `min` will also add * native HTML5 constraint validation. * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. * This must be a valid ISO time format (HH:mm:ss). You can also use interpolation inside this * attribute (e.g. `max="{{maxTime | date:'HH:mm:ss'}}"`). Note that `max` will also add * native HTML5 constraint validation. * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO time string the * `ngMin` expression evaluates to. Note that it does not set the `min` attribute. * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO time string the * `ngMax` expression evaluates to. Note that it does not set the `max` attribute. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example
Required! Not a valid date!
value = {{example.value | date: "HH:mm:ss"}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
 var value = element(by.binding('example.value | date: "HH:mm:ss"')); var valid = element(by.binding('myForm.input.$valid')); // currently protractor/webdriver does not support // sending keys to all known HTML5 input controls // for various browsers (https://github.com/angular/protractor/issues/562). function setInput(val) { // set the value of the element and force validation. var scr = "var ipt = document.getElementById('exampleInput'); " + "ipt.value = '" + val + "';" + "angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('" + val + "'); });"; browser.executeScript(scr); } it('should initialize to model', function() { expect(value.getText()).toContain('14:57:00'); expect(valid.getText()).toContain('myForm.input.$valid = true'); }); it('should be invalid if empty', function() { setInput(''); expect(value.getText()).toEqual('value ='); expect(valid.getText()).toContain('myForm.input.$valid = false'); }); it('should be invalid if over max', function() { setInput('23:59:00'); expect(value.getText()).toContain(''); expect(valid.getText()).toContain('myForm.input.$valid = false'); }); */ 'time': createDateInputType('time', TIME_REGEXP, createDateParser(TIME_REGEXP, ['HH', 'mm', 'ss', 'sss']), 'HH:mm:ss.sss'), /** * @ngdoc input * @name input[week] * * @description * Input with week-of-the-year validation and transformation to Date. In browsers that do not yet support * the HTML5 week input, a text element will be used. In that case, the text must be entered in a valid ISO-8601 * week format (yyyy-W##), for example: `2013-W02`. * * The model must always be a Date object, otherwise Angular will throw an error. * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string. * * The timezone to be used to read/write the `Date` instance in the model can be defined using * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. * This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this * attribute (e.g. `min="{{minWeek | date:'yyyy-Www'}}"`). Note that `min` will also add * native HTML5 constraint validation. * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. * This must be a valid ISO week format (yyyy-W##). You can also use interpolation inside this * attribute (e.g. `max="{{maxWeek | date:'yyyy-Www'}}"`). Note that `max` will also add * native HTML5 constraint validation. * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string * the `ngMin` expression evaluates to. Note that it does not set the `min` attribute. * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string * the `ngMax` expression evaluates to. Note that it does not set the `max` attribute. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example
Required! Not a valid date!
value = {{example.value | date: "yyyy-Www"}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
 var value = element(by.binding('example.value | date: "yyyy-Www"')); var valid = element(by.binding('myForm.input.$valid')); // currently protractor/webdriver does not support // sending keys to all known HTML5 input controls // for various browsers (https://github.com/angular/protractor/issues/562). function setInput(val) { // set the value of the element and force validation. var scr = "var ipt = document.getElementById('exampleInput'); " + "ipt.value = '" + val + "';" + "angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('" + val + "'); });"; browser.executeScript(scr); } it('should initialize to model', function() { expect(value.getText()).toContain('2013-W01'); expect(valid.getText()).toContain('myForm.input.$valid = true'); }); it('should be invalid if empty', function() { setInput(''); expect(value.getText()).toEqual('value ='); expect(valid.getText()).toContain('myForm.input.$valid = false'); }); it('should be invalid if over max', function() { setInput('2015-W01'); expect(value.getText()).toContain(''); expect(valid.getText()).toContain('myForm.input.$valid = false'); }); */ 'week': createDateInputType('week', WEEK_REGEXP, weekParser, 'yyyy-Www'), /** * @ngdoc input * @name input[month] * * @description * Input with month validation and transformation. In browsers that do not yet support * the HTML5 month input, a text element will be used. In that case, the text must be entered in a valid ISO-8601 * month format (yyyy-MM), for example: `2009-01`. * * The model must always be a Date object, otherwise Angular will throw an error. * Invalid `Date` objects (dates whose `getTime()` is `NaN`) will be rendered as an empty string. * If the model is not set to the first of the month, the next view to model update will set it * to the first of the month. * * The timezone to be used to read/write the `Date` instance in the model can be defined using * {@link ng.directive:ngModelOptions ngModelOptions}. By default, this is the timezone of the browser. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. * This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this * attribute (e.g. `min="{{minMonth | date:'yyyy-MM'}}"`). Note that `min` will also add * native HTML5 constraint validation. * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. * This must be a valid ISO month format (yyyy-MM). You can also use interpolation inside this * attribute (e.g. `max="{{maxMonth | date:'yyyy-MM'}}"`). Note that `max` will also add * native HTML5 constraint validation. * @param {(date|string)=} ngMin Sets the `min` validation constraint to the Date / ISO week string * the `ngMin` expression evaluates to. Note that it does not set the `min` attribute. * @param {(date|string)=} ngMax Sets the `max` validation constraint to the Date / ISO week string * the `ngMax` expression evaluates to. Note that it does not set the `max` attribute. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example
Required! Not a valid month!
value = {{example.value | date: "yyyy-MM"}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
 var value = element(by.binding('example.value | date: "yyyy-MM"')); var valid = element(by.binding('myForm.input.$valid')); // currently protractor/webdriver does not support // sending keys to all known HTML5 input controls // for various browsers (https://github.com/angular/protractor/issues/562). function setInput(val) { // set the value of the element and force validation. var scr = "var ipt = document.getElementById('exampleInput'); " + "ipt.value = '" + val + "';" + "angular.element(ipt).scope().$apply(function(s) { s.myForm[ipt.name].$setViewValue('" + val + "'); });"; browser.executeScript(scr); } it('should initialize to model', function() { expect(value.getText()).toContain('2013-10'); expect(valid.getText()).toContain('myForm.input.$valid = true'); }); it('should be invalid if empty', function() { setInput(''); expect(value.getText()).toEqual('value ='); expect(valid.getText()).toContain('myForm.input.$valid = false'); }); it('should be invalid if over max', function() { setInput('2015-01'); expect(value.getText()).toContain(''); expect(valid.getText()).toContain('myForm.input.$valid = false'); }); */ 'month': createDateInputType('month', MONTH_REGEXP, createDateParser(MONTH_REGEXP, ['yyyy', 'MM']), 'yyyy-MM'), /** * @ngdoc input * @name input[number] * * @description * Text input with number validation and transformation. Sets the `number` validation * error if not a valid number. * *
* The model must always be of type `number` otherwise Angular will throw an error. * Be aware that a string containing a number is not enough. See the {@link ngModel:numfmt} * error docs for more information and an example of how to convert your model if necessary. *
* * ## Issues with HTML5 constraint validation * * In browsers that follow the * [HTML5 specification](https://html.spec.whatwg.org/multipage/forms.html#number-state-%28type=number%29), * `input[number]` does not work as expected with {@link ngModelOptions `ngModelOptions.allowInvalid`}. * If a non-number is entered in the input, the browser will report the value as an empty string, * which means the view / model values in `ngModel` and subsequently the scope value * will also be an empty string. * * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} min Sets the `min` validation error key if the value entered is less than `min`. * Can be interpolated. * @param {string=} max Sets the `max` validation error key if the value entered is greater than `max`. * Can be interpolated. * @param {string=} ngMin Like `min`, sets the `min` validation error key if the value entered is less than `ngMin`, * but does not trigger HTML5 native validation. Takes an expression. * @param {string=} ngMax Like `max`, sets the `max` validation error key if the value entered is greater than `ngMax`, * but does not trigger HTML5 native validation. Takes an expression. * @param {string=} step Sets the `step` validation error key if the value entered does not fit the `step` constraint. * Can be interpolated. * @param {string=} ngStep Like `step`, sets the `step` validation error key if the value entered does not fit the `ngStep` constraint, * but does not trigger HTML5 native validation. Takes an expression. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than * minlength. * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than * maxlength. Setting the attribute to a negative or non-numeric value, allows view values of * any length. * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string * that contains the regular expression body that will be converted to a regular expression * as in the ngPattern directive. * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue} * does not match a RegExp found by evaluating the Angular expression given in the attribute value. * If the expression evaluates to a RegExp object, then this is used directly. * If the expression evaluates to a string, then it will be converted to a RegExp * after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to * `new RegExp('^abc$')`.
* **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to * start at the index of the last search's match, thus not taking the whole input value into * account. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example
Required! Not valid number!
value = {{example.value}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
 var value = element(by.binding('example.value')); var valid = element(by.binding('myForm.input.$valid')); var input = element(by.model('example.value')); it('should initialize to model', function() { expect(value.getText()).toContain('12'); expect(valid.getText()).toContain('true'); }); it('should be invalid if empty', function() { input.clear(); input.sendKeys(''); expect(value.getText()).toEqual('value ='); expect(valid.getText()).toContain('false'); }); it('should be invalid if over max', function() { input.clear(); input.sendKeys('123'); expect(value.getText()).toEqual('value ='); expect(valid.getText()).toContain('false'); }); */ 'number': numberInputType, /** * @ngdoc input * @name input[url] * * @description * Text input with URL validation. Sets the `url` validation error key if the content is not a * valid URL. * *
* **Note:** `input[url]` uses a regex to validate urls that is derived from the regex * used in Chromium. If you need stricter validation, you can use `ng-pattern` or modify * the built-in validators (see the {@link guide/forms Forms guide}) *
* * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than * minlength. * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than * maxlength. Setting the attribute to a negative or non-numeric value, allows view values of * any length. * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string * that contains the regular expression body that will be converted to a regular expression * as in the ngPattern directive. * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue} * does not match a RegExp found by evaluating the Angular expression given in the attribute value. * If the expression evaluates to a RegExp object, then this is used directly. * If the expression evaluates to a string, then it will be converted to a RegExp * after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to * `new RegExp('^abc$')`.
* **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to * start at the index of the last search's match, thus not taking the whole input value into * account. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example
var text = element(by.binding('url.text')); var valid = element(by.binding('myForm.input.$valid')); var input = element(by.model('url.text')); it('should initialize to model', function() { expect(text.getText()).toContain('http://google.com'); expect(valid.getText()).toContain('true'); }); it('should be invalid if empty', function() { input.clear(); input.sendKeys(''); expect(text.getText()).toEqual('text ='); expect(valid.getText()).toContain('false'); }); it('should be invalid if not url', function() { input.clear(); input.sendKeys('box'); expect(valid.getText()).toContain('false'); }); */ 'url': urlInputType, /** * @ngdoc input * @name input[email] * * @description * Text input with email validation. Sets the `email` validation error key if not a valid email * address. * *
* **Note:** `input[email]` uses a regex to validate email addresses that is derived from the regex * used in Chromium. If you need stricter validation (e.g. requiring a top-level domain), you can * use `ng-pattern` or modify the built-in validators (see the {@link guide/forms Forms guide}) *
* * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than * minlength. * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than * maxlength. Setting the attribute to a negative or non-numeric value, allows view values of * any length. * @param {string=} pattern Similar to `ngPattern` except that the attribute value is the actual string * that contains the regular expression body that will be converted to a regular expression * as in the ngPattern directive. * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue} * does not match a RegExp found by evaluating the Angular expression given in the attribute value. * If the expression evaluates to a RegExp object, then this is used directly. * If the expression evaluates to a string, then it will be converted to a RegExp * after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to * `new RegExp('^abc$')`.
* **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to * start at the index of the last search's match, thus not taking the whole input value into * account. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example
Required! Not valid email!
text = {{email.text}}
myForm.input.$valid = {{myForm.input.$valid}}
myForm.input.$error = {{myForm.input.$error}}
myForm.$valid = {{myForm.$valid}}
myForm.$error.required = {{!!myForm.$error.required}}
myForm.$error.email = {{!!myForm.$error.email}}
 var text = element(by.binding('email.text')); var valid = element(by.binding('myForm.input.$valid')); var input = element(by.model('email.text')); it('should initialize to model', function() { expect(text.getText()).toContain('me@example.com'); expect(valid.getText()).toContain('true'); }); it('should be invalid if empty', function() { input.clear(); input.sendKeys(''); expect(text.getText()).toEqual('text ='); expect(valid.getText()).toContain('false'); }); it('should be invalid if not email', function() { input.clear(); input.sendKeys('xxx'); expect(valid.getText()).toContain('false'); }); */ 'email': emailInputType, /** * @ngdoc input * @name input[radio] * * @description * HTML radio button. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string} value The value to which the `ngModel` expression should be set when selected. * Note that `value` only supports `string` values, i.e. the scope model needs to be a string, * too. Use `ngValue` if you need complex models (`number`, `object`, ...). * @param {string=} name Property name of the form under which the control is published. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * @param {string} ngValue Angular expression to which `ngModel` will be be set when the radio * is selected. Should be used instead of the `value` attribute if you need * a non-string `ngModel` (`boolean`, `array`, ...). * * @example



color = {{color.name | json}}
Note that `ng-value="specialValue"` sets radio item's value to be the value of `$scope.specialValue`. it('should change state', function() { var inputs = element.all(by.model('color.name')); var color = element(by.binding('color.name')); expect(color.getText()).toContain('blue'); inputs.get(0).click(); expect(color.getText()).toContain('red'); inputs.get(1).click(); expect(color.getText()).toContain('green'); }); */ 'radio': radioInputType, /** * @ngdoc input * @name input[range] * * @description * Native range input with validation and transformation. * * The model for the range input must always be a `Number`. * * IE9 and other browsers that do not support the `range` type fall back * to a text input without any default values for `min`, `max` and `step`. Model binding, * validation and number parsing are nevertheless supported. * * Browsers that support range (latest Chrome, Safari, Firefox, Edge) treat `input[range]` * in a way that never allows the input to hold an invalid value. That means: * - any non-numerical value is set to `(max + min) / 2`. * - any numerical value that is less than the current min val, or greater than the current max val * is set to the min / max val respectively. * - additionally, the current `step` is respected, so the nearest value that satisfies a step * is used. * * See the [HTML Spec on input[type=range]](https://www.w3.org/TR/html5/forms.html#range-state-(type=range)) * for more info. * * This has the following consequences for Angular: * * Since the element value should always reflect the current model value, a range input * will set the bound ngModel expression to the value that the browser has set for the * input element. For example, in the following input ``, * if the application sets `model.value = null`, the browser will set the input to `'50'`. * Angular will then set the model to `50`, to prevent input and model value being out of sync. * * That means the model for range will immediately be set to `50` after `ngModel` has been * initialized. It also means a range input can never have the required error. * * This does not only affect changes to the model value, but also to the values of the `min`, * `max`, and `step` attributes. When these change in a way that will cause the browser to modify * the input value, Angular will also update the model value. * * Automatic value adjustment also means that a range input element can never have the `required`, * `min`, or `max` errors. * * However, `step` is currently only fully implemented by Firefox. Other browsers have problems * when the step value changes dynamically - they do not adjust the element value correctly, but * instead may set the `stepMismatch` error. If that's the case, the Angular will set the `step` * error on the input, and set the model to `undefined`. * * Note that `input[range]` is not compatible with`ngMax`, `ngMin`, and `ngStep`, because they do * not set the `min` and `max` attributes, which means that the browser won't automatically adjust * the input value based on their values, and will always assume min = 0, max = 100, and step = 1. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} min Sets the `min` validation to ensure that the value entered is greater * than `min`. Can be interpolated. * @param {string=} max Sets the `max` validation to ensure that the value entered is less than `max`. * Can be interpolated. * @param {string=} step Sets the `step` validation to ensure that the value entered matches the `step` * Can be interpolated. * @param {string=} ngChange Angular expression to be executed when the ngModel value changes due * to user interaction with the input element. * @param {expression=} ngChecked If the expression is truthy, then the `checked` attribute will be set on the * element. **Note** : `ngChecked` should not be used alongside `ngModel`. * Checkout {@link ng.directive:ngChecked ngChecked} for usage. * * @example
Model as range:
Model as number:
Min:
Max:
value = {{value}}
myForm.range.$valid = {{myForm.range.$valid}}
myForm.range.$error = {{myForm.range.$error}}
* ## Range Input with ngMin & ngMax attributes * @example
Model as range:
Model as number:
Min:
Max:
value = {{value}}
myForm.range.$valid = {{myForm.range.$valid}}
myForm.range.$error = {{myForm.range.$error}}
*/ 'range': rangeInputType, /** * @ngdoc input * @name input[checkbox] * * @description * HTML checkbox. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {expression=} ngTrueValue The value to which the expression should be set when selected. * @param {expression=} ngFalseValue The value to which the expression should be set when not selected. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * * @example


value1 = {{checkboxModel.value1}}
value2 = {{checkboxModel.value2}}
 it('should change state', function() { var value1 = element(by.binding('checkboxModel.value1')); var value2 = element(by.binding('checkboxModel.value2')); expect(value1.getText()).toContain('true'); expect(value2.getText()).toContain('YES'); element(by.model('checkboxModel.value1')).click(); element(by.model('checkboxModel.value2')).click(); expect(value1.getText()).toContain('false'); expect(value2.getText()).toContain('NO'); }); */ 'checkbox': checkboxInputType, 'hidden': noop, 'button': noop, 'submit': noop, 'reset': noop, 'file': noop }; function stringBasedInputType(ctrl) { ctrl.$formatters.push(function(value) { return ctrl.$isEmpty(value) ? value : value.toString(); }); } function textInputType(scope, element, attr, ctrl, $sniffer, $browser) { baseInputType(scope, element, attr, ctrl, $sniffer, $browser); stringBasedInputType(ctrl); } function baseInputType(scope, element, attr, ctrl, $sniffer, $browser) { var type = lowercase(element[0].type); // In composition mode, users are still inputting intermediate text buffer, // hold the listener until composition is done. // More about composition events: https://developer.mozilla.org/en-US/docs/Web/API/CompositionEvent if (!$sniffer.android) { var composing = false; element.on('compositionstart', function() { composing = true; }); element.on('compositionend', function() { composing = false; listener(); }); } var timeout; var listener = function(ev) { if (timeout) { $browser.defer.cancel(timeout); timeout = null; } if (composing) return; var value = element.val(), event = ev && ev.type; // By default we will trim the value // If the attribute ng-trim exists we will avoid trimming // If input type is 'password', the value is never trimmed if (type !== 'password' && (!attr.ngTrim || attr.ngTrim !== 'false')) { value = trim(value); } // If a control is suffering from bad input (due to native validators), browsers discard its // value, so it may be necessary to revalidate (by calling $setViewValue again) even if the // control's value is the same empty value twice in a row. if (ctrl.$viewValue !== value || (value === '' && ctrl.$$hasNativeValidators)) { ctrl.$setViewValue(value, event); } }; // if the browser does support "input" event, we are fine - except on IE9 which doesn't fire the // input event on backspace, delete or cut if ($sniffer.hasEvent('input')) { element.on('input', listener); } else { var deferListener = function(ev, input, origValue) { if (!timeout) { timeout = $browser.defer(function() { timeout = null; if (!input || input.value !== origValue) { listener(ev); } }); } }; element.on('keydown', /** @this */ function(event) { var key = event.keyCode; // ignore // command modifiers arrows if (key === 91 || (15 < key && key < 19) || (37 <= key && key <= 40)) return; deferListener(event, this, this.value); }); // if user modifies input value using context menu in IE, we need "paste" and "cut" events to catch it if ($sniffer.hasEvent('paste')) { element.on('paste cut', deferListener); } } // if user paste into input using mouse on older browser // or form autocomplete on newer browser, we need "change" event to catch it element.on('change', listener); // Some native input types (date-family) have the ability to change validity without // firing any input/change events. // For these event types, when native validators are present and the browser supports the type, // check for validity changes on various DOM events. if (PARTIAL_VALIDATION_TYPES[type] && ctrl.$$hasNativeValidators && type === attr.type) { element.on(PARTIAL_VALIDATION_EVENTS, /** @this */ function(ev) { if (!timeout) { var validity = this[VALIDITY_STATE_PROPERTY]; var origBadInput = validity.badInput; var origTypeMismatch = validity.typeMismatch; timeout = $browser.defer(function() { timeout = null; if (validity.badInput !== origBadInput || validity.typeMismatch !== origTypeMismatch) { listener(ev); } }); } }); } ctrl.$render = function() { // Workaround for Firefox validation #12102. var value = ctrl.$isEmpty(ctrl.$viewValue) ? '' : ctrl.$viewValue; if (element.val() !== value) { element.val(value); } }; } function weekParser(isoWeek, existingDate) { if (isDate(isoWeek)) { return isoWeek; } if (isString(isoWeek)) { WEEK_REGEXP.lastIndex = 0; var parts = WEEK_REGEXP.exec(isoWeek); if (parts) { var year = +parts[1], week = +parts[2], hours = 0, minutes = 0, seconds = 0, milliseconds = 0, firstThurs = getFirstThursdayOfYear(year), addDays = (week - 1) * 7; if (existingDate) { hours = existingDate.getHours(); minutes = existingDate.getMinutes(); seconds = existingDate.getSeconds(); milliseconds = existingDate.getMilliseconds(); } return new Date(year, 0, firstThurs.getDate() + addDays, hours, minutes, seconds, milliseconds); } } return NaN; } function createDateParser(regexp, mapping) { return function(iso, date) { var parts, map; if (isDate(iso)) { return iso; } if (isString(iso)) { // When a date is JSON'ified to wraps itself inside of an extra // set of double quotes. This makes the date parsing code unable // to match the date string and parse it as a date. if (iso.charAt(0) === '"' && iso.charAt(iso.length - 1) === '"') { iso = iso.substring(1, iso.length - 1); } if (ISO_DATE_REGEXP.test(iso)) { return new Date(iso); } regexp.lastIndex = 0; parts = regexp.exec(iso); if (parts) { parts.shift(); if (date) { map = { yyyy: date.getFullYear(), MM: date.getMonth() + 1, dd: date.getDate(), HH: date.getHours(), mm: date.getMinutes(), ss: date.getSeconds(), sss: date.getMilliseconds() / 1000 }; } else { map = { yyyy: 1970, MM: 1, dd: 1, HH: 0, mm: 0, ss: 0, sss: 0 }; } forEach(parts, function(part, index) { if (index < mapping.length) { map[mapping[index]] = +part; } }); return new Date(map.yyyy, map.MM - 1, map.dd, map.HH, map.mm, map.ss || 0, map.sss * 1000 || 0); } } return NaN; }; } function createDateInputType(type, regexp, parseDate, format) { return function dynamicDateInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter) { badInputChecker(scope, element, attr, ctrl); baseInputType(scope, element, attr, ctrl, $sniffer, $browser); var timezone = ctrl && ctrl.$options.getOption('timezone'); var previousDate; ctrl.$$parserName = type; ctrl.$parsers.push(function(value) { if (ctrl.$isEmpty(value)) return null; if (regexp.test(value)) { // Note: We cannot read ctrl.$modelValue, as there might be a different // parser/formatter in the processing chain so that the model // contains some different data format! var parsedDate = parseDate(value, previousDate); if (timezone) { parsedDate = convertTimezoneToLocal(parsedDate, timezone); } return parsedDate; } return undefined; }); ctrl.$formatters.push(function(value) { if (value && !isDate(value)) { throw ngModelMinErr('datefmt', 'Expected `{0}` to be a date', value); } if (isValidDate(value)) { previousDate = value; if (previousDate && timezone) { previousDate = convertTimezoneToLocal(previousDate, timezone, true); } return $filter('date')(value, format, timezone); } else { previousDate = null; return ''; } }); if (isDefined(attr.min) || attr.ngMin) { var minVal; ctrl.$validators.min = function(value) { return !isValidDate(value) || isUndefined(minVal) || parseDate(value) >= minVal; }; attr.$observe('min', function(val) { minVal = parseObservedDateValue(val); ctrl.$validate(); }); } if (isDefined(attr.max) || attr.ngMax) { var maxVal; ctrl.$validators.max = function(value) { return !isValidDate(value) || isUndefined(maxVal) || parseDate(value) <= maxVal; }; attr.$observe('max', function(val) { maxVal = parseObservedDateValue(val); ctrl.$validate(); }); } function isValidDate(value) { // Invalid Date: getTime() returns NaN return value && !(value.getTime && value.getTime() !== value.getTime()); } function parseObservedDateValue(val) { return isDefined(val) && !isDate(val) ? parseDate(val) || undefined : val; } }; } function badInputChecker(scope, element, attr, ctrl) { var node = element[0]; var nativeValidation = ctrl.$$hasNativeValidators = isObject(node.validity); if (nativeValidation) { ctrl.$parsers.push(function(value) { var validity = element.prop(VALIDITY_STATE_PROPERTY) || {}; return validity.badInput || validity.typeMismatch ? undefined : value; }); } } function numberFormatterParser(ctrl) { ctrl.$$parserName = 'number'; ctrl.$parsers.push(function(value) { if (ctrl.$isEmpty(value)) return null; if (NUMBER_REGEXP.test(value)) return parseFloat(value); return undefined; }); ctrl.$formatters.push(function(value) { if (!ctrl.$isEmpty(value)) { if (!isNumber(value)) { throw ngModelMinErr('numfmt', 'Expected `{0}` to be a number', value); } value = value.toString(); } return value; }); } function parseNumberAttrVal(val) { if (isDefined(val) && !isNumber(val)) { val = parseFloat(val); } return !isNumberNaN(val) ? val : undefined; } function isNumberInteger(num) { // See http://stackoverflow.com/questions/14636536/how-to-check-if-a-variable-is-an-integer-in-javascript#14794066 // (minus the assumption that `num` is a number) // eslint-disable-next-line no-bitwise return (num | 0) === num; } function countDecimals(num) { var numString = num.toString(); var decimalSymbolIndex = numString.indexOf('.'); if (decimalSymbolIndex === -1) { if (-1 < num && num < 1) { // It may be in the exponential notation format (`1e-X`) var match = /e-(\d+)$/.exec(numString); if (match) { return Number(match[1]); } } return 0; } return numString.length - decimalSymbolIndex - 1; } function isValidForStep(viewValue, stepBase, step) { // At this point `stepBase` and `step` are expected to be non-NaN values // and `viewValue` is expected to be a valid stringified number. var value = Number(viewValue); // Due to limitations in Floating Point Arithmetic (e.g. `0.3 - 0.2 !== 0.1` or // `0.5 % 0.1 !== 0`), we need to convert all numbers to integers. if (!isNumberInteger(value) || !isNumberInteger(stepBase) || !isNumberInteger(step)) { var decimalCount = Math.max(countDecimals(value), countDecimals(stepBase), countDecimals(step)); var multiplier = Math.pow(10, decimalCount); value = value * multiplier; stepBase = stepBase * multiplier; step = step * multiplier; } return (value - stepBase) % step === 0; } function numberInputType(scope, element, attr, ctrl, $sniffer, $browser) { badInputChecker(scope, element, attr, ctrl); numberFormatterParser(ctrl); baseInputType(scope, element, attr, ctrl, $sniffer, $browser); var minVal; var maxVal; if (isDefined(attr.min) || attr.ngMin) { ctrl.$validators.min = function(value) { return ctrl.$isEmpty(value) || isUndefined(minVal) || value >= minVal; }; attr.$observe('min', function(val) { minVal = parseNumberAttrVal(val); // TODO(matsko): implement validateLater to reduce number of validations ctrl.$validate(); }); } if (isDefined(attr.max) || attr.ngMax) { ctrl.$validators.max = function(value) { return ctrl.$isEmpty(value) || isUndefined(maxVal) || value <= maxVal; }; attr.$observe('max', function(val) { maxVal = parseNumberAttrVal(val); // TODO(matsko): implement validateLater to reduce number of validations ctrl.$validate(); }); } if (isDefined(attr.step) || attr.ngStep) { var stepVal; ctrl.$validators.step = function(modelValue, viewValue) { return ctrl.$isEmpty(viewValue) || isUndefined(stepVal) || isValidForStep(viewValue, minVal || 0, stepVal); }; attr.$observe('step', function(val) { stepVal = parseNumberAttrVal(val); // TODO(matsko): implement validateLater to reduce number of validations ctrl.$validate(); }); } } function rangeInputType(scope, element, attr, ctrl, $sniffer, $browser) { badInputChecker(scope, element, attr, ctrl); numberFormatterParser(ctrl); baseInputType(scope, element, attr, ctrl, $sniffer, $browser); var supportsRange = ctrl.$$hasNativeValidators && element[0].type === 'range', minVal = supportsRange ? 0 : undefined, maxVal = supportsRange ? 100 : undefined, stepVal = supportsRange ? 1 : undefined, validity = element[0].validity, hasMinAttr = isDefined(attr.min), hasMaxAttr = isDefined(attr.max), hasStepAttr = isDefined(attr.step); var originalRender = ctrl.$render; ctrl.$render = supportsRange && isDefined(validity.rangeUnderflow) && isDefined(validity.rangeOverflow) ? //Browsers that implement range will set these values automatically, but reading the adjusted values after //$render would cause the min / max validators to be applied with the wrong value function rangeRender() { originalRender(); ctrl.$setViewValue(element.val()); } : originalRender; if (hasMinAttr) { ctrl.$validators.min = supportsRange ? // Since all browsers set the input to a valid value, we don't need to check validity function noopMinValidator() { return true; } : // non-support browsers validate the min val function minValidator(modelValue, viewValue) { return ctrl.$isEmpty(viewValue) || isUndefined(minVal) || viewValue >= minVal; }; setInitialValueAndObserver('min', minChange); } if (hasMaxAttr) { ctrl.$validators.max = supportsRange ? // Since all browsers set the input to a valid value, we don't need to check validity function noopMaxValidator() { return true; } : // non-support browsers validate the max val function maxValidator(modelValue, viewValue) { return ctrl.$isEmpty(viewValue) || isUndefined(maxVal) || viewValue <= maxVal; }; setInitialValueAndObserver('max', maxChange); } if (hasStepAttr) { ctrl.$validators.step = supportsRange ? function nativeStepValidator() { // Currently, only FF implements the spec on step change correctly (i.e. adjusting the // input element value to a valid value). It's possible that other browsers set the stepMismatch // validity error instead, so we can at least report an error in that case. return !validity.stepMismatch; } : // ngStep doesn't set the setp attr, so the browser doesn't adjust the input value as setting step would function stepValidator(modelValue, viewValue) { return ctrl.$isEmpty(viewValue) || isUndefined(stepVal) || isValidForStep(viewValue, minVal || 0, stepVal); }; setInitialValueAndObserver('step', stepChange); } function setInitialValueAndObserver(htmlAttrName, changeFn) { // interpolated attributes set the attribute value only after a digest, but we need the // attribute value when the input is first rendered, so that the browser can adjust the // input value based on the min/max value element.attr(htmlAttrName, attr[htmlAttrName]); attr.$observe(htmlAttrName, changeFn); } function minChange(val) { minVal = parseNumberAttrVal(val); // ignore changes before model is initialized if (isNumberNaN(ctrl.$modelValue)) { return; } if (supportsRange) { var elVal = element.val(); // IE11 doesn't set the el val correctly if the minVal is greater than the element value if (minVal > elVal) { elVal = minVal; element.val(elVal); } ctrl.$setViewValue(elVal); } else { // TODO(matsko): implement validateLater to reduce number of validations ctrl.$validate(); } } function maxChange(val) { maxVal = parseNumberAttrVal(val); // ignore changes before model is initialized if (isNumberNaN(ctrl.$modelValue)) { return; } if (supportsRange) { var elVal = element.val(); // IE11 doesn't set the el val correctly if the maxVal is less than the element value if (maxVal < elVal) { element.val(maxVal); // IE11 and Chrome don't set the value to the minVal when max < min elVal = maxVal < minVal ? minVal : maxVal; } ctrl.$setViewValue(elVal); } else { // TODO(matsko): implement validateLater to reduce number of validations ctrl.$validate(); } } function stepChange(val) { stepVal = parseNumberAttrVal(val); // ignore changes before model is initialized if (isNumberNaN(ctrl.$modelValue)) { return; } // Some browsers don't adjust the input value correctly, but set the stepMismatch error if (supportsRange && ctrl.$viewValue !== element.val()) { ctrl.$setViewValue(element.val()); } else { // TODO(matsko): implement validateLater to reduce number of validations ctrl.$validate(); } } } function urlInputType(scope, element, attr, ctrl, $sniffer, $browser) { // Note: no badInputChecker here by purpose as `url` is only a validation // in browsers, i.e. we can always read out input.value even if it is not valid! baseInputType(scope, element, attr, ctrl, $sniffer, $browser); stringBasedInputType(ctrl); ctrl.$$parserName = 'url'; ctrl.$validators.url = function(modelValue, viewValue) { var value = modelValue || viewValue; return ctrl.$isEmpty(value) || URL_REGEXP.test(value); }; } function emailInputType(scope, element, attr, ctrl, $sniffer, $browser) { // Note: no badInputChecker here by purpose as `url` is only a validation // in browsers, i.e. we can always read out input.value even if it is not valid! baseInputType(scope, element, attr, ctrl, $sniffer, $browser); stringBasedInputType(ctrl); ctrl.$$parserName = 'email'; ctrl.$validators.email = function(modelValue, viewValue) { var value = modelValue || viewValue; return ctrl.$isEmpty(value) || EMAIL_REGEXP.test(value); }; } function radioInputType(scope, element, attr, ctrl) { var doTrim = !attr.ngTrim || trim(attr.ngTrim) !== 'false'; // make the name unique, if not defined if (isUndefined(attr.name)) { element.attr('name', nextUid()); } var listener = function(ev) { var value; if (element[0].checked) { value = attr.value; if (doTrim) { value = trim(value); } ctrl.$setViewValue(value, ev && ev.type); } }; element.on('click', listener); ctrl.$render = function() { var value = attr.value; if (doTrim) { value = trim(value); } element[0].checked = (value === ctrl.$viewValue); }; attr.$observe('value', ctrl.$render); } function parseConstantExpr($parse, context, name, expression, fallback) { var parseFn; if (isDefined(expression)) { parseFn = $parse(expression); if (!parseFn.constant) { throw ngModelMinErr('constexpr', 'Expected constant expression for `{0}`, but saw ' + '`{1}`.', name, expression); } return parseFn(context); } return fallback; } function checkboxInputType(scope, element, attr, ctrl, $sniffer, $browser, $filter, $parse) { var trueValue = parseConstantExpr($parse, scope, 'ngTrueValue', attr.ngTrueValue, true); var falseValue = parseConstantExpr($parse, scope, 'ngFalseValue', attr.ngFalseValue, false); var listener = function(ev) { ctrl.$setViewValue(element[0].checked, ev && ev.type); }; element.on('click', listener); ctrl.$render = function() { element[0].checked = ctrl.$viewValue; }; // Override the standard `$isEmpty` because the $viewValue of an empty checkbox is always set to `false` // This is because of the parser below, which compares the `$modelValue` with `trueValue` to convert // it to a boolean. ctrl.$isEmpty = function(value) { return value === false; }; ctrl.$formatters.push(function(value) { return equals(value, trueValue); }); ctrl.$parsers.push(function(value) { return value ? trueValue : falseValue; }); } /** * @ngdoc directive * @name textarea * @restrict E * * @description * HTML textarea element control with angular data-binding. The data-binding and validation * properties of this element are exactly the same as those of the * {@link ng.directive:input input element}. * * @param {string} ngModel Assignable angular expression to data-bind to. * @param {string=} name Property name of the form under which the control is published. * @param {string=} required Sets `required` validation error key if the value is not entered. * @param {string=} ngRequired Adds `required` attribute and `required` validation constraint to * the element when the ngRequired expression evaluates to true. Use `ngRequired` instead of * `required` when you want to data-bind to the `required` attribute. * @param {number=} ngMinlength Sets `minlength` validation error key if the value is shorter than * minlength. * @param {number=} ngMaxlength Sets `maxlength` validation error key if the value is longer than * maxlength. Setting the attribute to a negative or non-numeric value, allows view values of any * length. * @param {string=} ngPattern Sets `pattern` validation error key if the ngModel {@link ngModel.NgModelController#$viewValue $viewValue} * does not match a RegExp found by evaluating the Angular expression given in the attribute value. * If the expression evaluates to a RegExp object, then this is used directly. * If the expression evaluates to a string, then it will be converted to a RegExp * after wrapping it in `^` and `$` characters. For instance, `"abc"` will be converted to * `new RegExp('^abc$')`.
* **Note:** Avoid using the `g` flag on the RegExp, as it will cause each successive search to * start at the index of the last search's match, thus not taking the whole input value into * account. * @param {string=} ngChange Angular expression to be executed when input changes due to user * interaction with the input element. * @param {boolean=} [ngTrim=true] If set to false Angular will not automatically trim the input. * * @knownIssue * * When specifying the `placeholder` attribute of ` * 
{{ list | json }}
* * * it("should split the text by newlines", function() { * var listInput = element(by.model('list')); * var output = element(by.binding('list | json')); * listInput.sendKeys('abc\ndef\nghi'); * expect(output.getText()).toContain('[\n "abc",\n "def",\n "ghi"\n]'); * }); * * * * @element input * @param {string=} ngList optional delimiter that should be used to split the value. */ var ngListDirective = function() { return { restrict: 'A', priority: 100, require: 'ngModel', link: function(scope, element, attr, ctrl) { var ngList = attr.ngList || ', '; var trimValues = attr.ngTrim !== 'false'; var separator = trimValues ? trim(ngList) : ngList; var parse = function(viewValue) { // If the viewValue is invalid (say required but empty) it will be `undefined` if (isUndefined(viewValue)) return; var list = []; if (viewValue) { forEach(viewValue.split(separator), function(value) { if (value) list.push(trimValues ? trim(value) : value); }); } return list; }; ctrl.$parsers.push(parse); ctrl.$formatters.push(function(value) { if (isArray(value)) { return value.join(ngList); } return undefined; }); // Override the standard $isEmpty because an empty array means the input is empty. ctrl.$isEmpty = function(value) { return !value || !value.length; }; } }; }; /* global VALID_CLASS: true, INVALID_CLASS: true, PRISTINE_CLASS: true, DIRTY_CLASS: true, UNTOUCHED_CLASS: true, TOUCHED_CLASS: true, PENDING_CLASS: true, addSetValidityMethod: true, setupValidity: true, defaultModelOptions: false */ var VALID_CLASS = 'ng-valid', INVALID_CLASS = 'ng-invalid', PRISTINE_CLASS = 'ng-pristine', DIRTY_CLASS = 'ng-dirty', UNTOUCHED_CLASS = 'ng-untouched', TOUCHED_CLASS = 'ng-touched', EMPTY_CLASS = 'ng-empty', NOT_EMPTY_CLASS = 'ng-not-empty'; var ngModelMinErr = minErr('ngModel'); /** * @ngdoc type * @name ngModel.NgModelController * * @property {*} $viewValue The actual value from the control's view. For `input` elements, this is a * String. See {@link ngModel.NgModelController#$setViewValue} for information about when the $viewValue * is set. * @property {*} $modelValue The value in the model that the control is bound to. * @property {Array.} $parsers Array of functions to execute, as a pipeline, whenever the control reads value from the DOM. The functions are called in array order, each passing its return value through to the next. The last return value is forwarded to the {@link ngModel.NgModelController#$validators `$validators`} collection. Parsers are used to sanitize / convert the {@link ngModel.NgModelController#$viewValue `$viewValue`}. Returning `undefined` from a parser means a parse error occurred. In that case, no {@link ngModel.NgModelController#$validators `$validators`} will run and the `ngModel` will be set to `undefined` unless {@link ngModelOptions `ngModelOptions.allowInvalid`} is set to `true`. The parse error is stored in `ngModel.$error.parse`. * * @property {Array.} $formatters Array of functions to execute, as a pipeline, whenever the model value changes. The functions are called in reverse array order, each passing the value through to the next. The last return value is used as the actual DOM value. Used to format / convert values for display in the control. * ```js * function formatter(value) { * if (value) { * return value.toUpperCase(); * } * } * ngModel.$formatters.push(formatter); * ``` * * @property {Object.} $validators A collection of validators that are applied * whenever the model value changes. The key value within the object refers to the name of the * validator while the function refers to the validation operation. The validation operation is * provided with the model value as an argument and must return a true or false value depending * on the response of that validation. * * ```js * ngModel.$validators.validCharacters = function(modelValue, viewValue) { * var value = modelValue || viewValue; * return /[0-9]+/.test(value) && * /[a-z]+/.test(value) && * /[A-Z]+/.test(value) && * /\W+/.test(value); * }; * ``` * * @property {Object.} $asyncValidators A collection of validations that are expected to * perform an asynchronous validation (e.g. a HTTP request). The validation function that is provided * is expected to return a promise when it is run during the model validation process. Once the promise * is delivered then the validation status will be set to true when fulfilled and false when rejected. * When the asynchronous validators are triggered, each of the validators will run in parallel and the model * value will only be updated once all validators have been fulfilled. As long as an asynchronous validator * is unfulfilled, its key will be added to the controllers `$pending` property. Also, all asynchronous validators * will only run once all synchronous validators have passed. * * Please note that if $http is used then it is important that the server returns a success HTTP response code * in order to fulfill the validation and a status level of `4xx` in order to reject the validation. * * ```js * ngModel.$asyncValidators.uniqueUsername = function(modelValue, viewValue) { * var value = modelValue || viewValue; * * // Lookup user by username * return $http.get('/api/users/' + value). * then(function resolved() { * //username exists, this means validation fails * return $q.reject('exists'); * }, function rejected() { * //username does not exist, therefore this validation passes * return true; * }); * }; * ``` * * @property {Array.} $viewChangeListeners Array of functions to execute whenever the * view value has changed. It is called with no arguments, and its return value is ignored. * This can be used in place of additional $watches against the model value. * * @property {Object} $error An object hash with all failing validator ids as keys. * @property {Object} $pending An object hash with all pending validator ids as keys. * * @property {boolean} $untouched True if control has not lost focus yet. * @property {boolean} $touched True if control has lost focus. * @property {boolean} $pristine True if user has not interacted with the control yet. * @property {boolean} $dirty True if user has already interacted with the control. * @property {boolean} $valid True if there is no error. * @property {boolean} $invalid True if at least one error on the control. * @property {string} $name The name attribute of the control. * * @description * * `NgModelController` provides API for the {@link ngModel `ngModel`} directive. * The controller contains services for data-binding, validation, CSS updates, and value formatting * and parsing. It purposefully does not contain any logic which deals with DOM rendering or * listening to DOM events. * Such DOM related logic should be provided by other directives which make use of * `NgModelController` for data-binding to control elements. * Angular provides this DOM logic for most {@link input `input`} elements. * At the end of this page you can find a {@link ngModel.NgModelController#custom-control-example * custom control example} that uses `ngModelController` to bind to `contenteditable` elements. * * @example * ### Custom Control Example * This example shows how to use `NgModelController` with a custom control to achieve * data-binding. Notice how different directives (`contenteditable`, `ng-model`, and `required`) * collaborate together to achieve the desired result. * * `contenteditable` is an HTML5 attribute, which tells the browser to let the element * contents be edited in place by the user. * * We are using the {@link ng.service:$sce $sce} service here and include the {@link ngSanitize $sanitize} * module to automatically remove "bad" content like inline event listener (e.g. ``). * However, as we are using `$sce` the model can still decide to provide unsafe content if it marks * that content using the `$sce` service. * * [contenteditable] { border: 1px solid black; background-color: white; min-height: 20px; } .ng-invalid { border: 1px solid red; } angular.module('customControl', ['ngSanitize']). directive('contenteditable', ['$sce', function($sce) { return { restrict: 'A', // only activate on element attribute require: '?ngModel', // get a hold of NgModelController link: function(scope, element, attrs, ngModel) { if (!ngModel) return; // do nothing if no ng-model // Specify how UI should be updated ngModel.$render = function() { element.html($sce.getTrustedHtml(ngModel.$viewValue || '')); }; // Listen for change events to enable binding element.on('blur keyup change', function() { scope.$evalAsync(read); }); read(); // initialize // Write data to the model function read() { var html = element.html(); // When we clear the content editable the browser leaves a
behind // If strip-br attribute is provided then we strip this out if (attrs.stripBr && html === '
') { html = ''; } ngModel.$setViewValue(html); } } }; }]);
Change me!
Required!
it('should data-bind and become invalid', function() { if (browser.params.browser === 'safari' || browser.params.browser === 'firefox') { // SafariDriver can't handle contenteditable // and Firefox driver can't clear contenteditables very well return; } var contentEditable = element(by.css('[contenteditable]')); var content = 'Change me!'; expect(contentEditable.getText()).toEqual(content); contentEditable.clear(); contentEditable.sendKeys(protractor.Key.BACK_SPACE); expect(contentEditable.getText()).toEqual(''); expect(contentEditable.getAttribute('class')).toMatch(/ng-invalid-required/); }); * * * */ NgModelController.$inject = ['$scope', '$exceptionHandler', '$attrs', '$element', '$parse', '$animate', '$timeout', '$q', '$interpolate']; function NgModelController($scope, $exceptionHandler, $attr, $element, $parse, $animate, $timeout, $q, $interpolate) { this.$viewValue = Number.NaN; this.$modelValue = Number.NaN; this.$$rawModelValue = undefined; // stores the parsed modelValue / model set from scope regardless of validity. this.$validators = {}; this.$asyncValidators = {}; this.$parsers = []; this.$formatters = []; this.$viewChangeListeners = []; this.$untouched = true; this.$touched = false; this.$pristine = true; this.$dirty = false; this.$valid = true; this.$invalid = false; this.$error = {}; // keep invalid keys here this.$$success = {}; // keep valid keys here this.$pending = undefined; // keep pending keys here this.$name = $interpolate($attr.name || '', false)($scope); this.$$parentForm = nullFormCtrl; this.$options = defaultModelOptions; this.$$parsedNgModel = $parse($attr.ngModel); this.$$parsedNgModelAssign = this.$$parsedNgModel.assign; this.$$ngModelGet = this.$$parsedNgModel; this.$$ngModelSet = this.$$parsedNgModelAssign; this.$$pendingDebounce = null; this.$$parserValid = undefined; this.$$currentValidationRunId = 0; this.$$scope = $scope; this.$$attr = $attr; this.$$element = $element; this.$$animate = $animate; this.$$timeout = $timeout; this.$$parse = $parse; this.$$q = $q; this.$$exceptionHandler = $exceptionHandler; setupValidity(this); setupModelWatcher(this); } NgModelController.prototype = { $$initGetterSetters: function() { if (this.$options.getOption('getterSetter')) { var invokeModelGetter = this.$$parse(this.$$attr.ngModel + '()'), invokeModelSetter = this.$$parse(this.$$attr.ngModel + '($$$p)'); this.$$ngModelGet = function($scope) { var modelValue = this.$$parsedNgModel($scope); if (isFunction(modelValue)) { modelValue = invokeModelGetter($scope); } return modelValue; }; this.$$ngModelSet = function($scope, newValue) { if (isFunction(this.$$parsedNgModel($scope))) { invokeModelSetter($scope, {$$$p: newValue}); } else { this.$$parsedNgModelAssign($scope, newValue); } }; } else if (!this.$$parsedNgModel.assign) { throw ngModelMinErr('nonassign', 'Expression \'{0}\' is non-assignable. Element: {1}', this.$$attr.ngModel, startingTag(this.$$element)); } }, /** * @ngdoc method * @name ngModel.NgModelController#$render * * @description * Called when the view needs to be updated. It is expected that the user of the ng-model * directive will implement this method. * * The `$render()` method is invoked in the following situations: * * * `$rollbackViewValue()` is called. If we are rolling back the view value to the last * committed value then `$render()` is called to update the input control. * * The value referenced by `ng-model` is changed programmatically and both the `$modelValue` and * the `$viewValue` are different from last time. * * Since `ng-model` does not do a deep watch, `$render()` is only invoked if the values of * `$modelValue` and `$viewValue` are actually different from their previous values. If `$modelValue` * or `$viewValue` are objects (rather than a string or number) then `$render()` will not be * invoked if you only change a property on the objects. */ $render: noop, /** * @ngdoc method * @name ngModel.NgModelController#$isEmpty * * @description * This is called when we need to determine if the value of an input is empty. * * For instance, the required directive does this to work out if the input has data or not. * * The default `$isEmpty` function checks whether the value is `undefined`, `''`, `null` or `NaN`. * * You can override this for input directives whose concept of being empty is different from the * default. The `checkboxInputType` directive does this because in its case a value of `false` * implies empty. * * @param {*} value The value of the input to check for emptiness. * @returns {boolean} True if `value` is "empty". */ $isEmpty: function(value) { // eslint-disable-next-line no-self-compare return isUndefined(value) || value === '' || value === null || value !== value; }, $$updateEmptyClasses: function(value) { if (this.$isEmpty(value)) { this.$$animate.removeClass(this.$$element, NOT_EMPTY_CLASS); this.$$animate.addClass(this.$$element, EMPTY_CLASS); } else { this.$$animate.removeClass(this.$$element, EMPTY_CLASS); this.$$animate.addClass(this.$$element, NOT_EMPTY_CLASS); } }, /** * @ngdoc method * @name ngModel.NgModelController#$setPristine * * @description * Sets the control to its pristine state. * * This method can be called to remove the `ng-dirty` class and set the control to its pristine * state (`ng-pristine` class). A model is considered to be pristine when the control * has not been changed from when first compiled. */ $setPristine: function() { this.$dirty = false; this.$pristine = true; this.$$animate.removeClass(this.$$element, DIRTY_CLASS); this.$$animate.addClass(this.$$element, PRISTINE_CLASS); }, /** * @ngdoc method * @name ngModel.NgModelController#$setDirty * * @description * Sets the control to its dirty state. * * This method can be called to remove the `ng-pristine` class and set the control to its dirty * state (`ng-dirty` class). A model is considered to be dirty when the control has been changed * from when first compiled. */ $setDirty: function() { this.$dirty = true; this.$pristine = false; this.$$animate.removeClass(this.$$element, PRISTINE_CLASS); this.$$animate.addClass(this.$$element, DIRTY_CLASS); this.$$parentForm.$setDirty(); }, /** * @ngdoc method * @name ngModel.NgModelController#$setUntouched * * @description * Sets the control to its untouched state. * * This method can be called to remove the `ng-touched` class and set the control to its * untouched state (`ng-untouched` class). Upon compilation, a model is set as untouched * by default, however this function can be used to restore that state if the model has * already been touched by the user. */ $setUntouched: function() { this.$touched = false; this.$untouched = true; this.$$animate.setClass(this.$$element, UNTOUCHED_CLASS, TOUCHED_CLASS); }, /** * @ngdoc method * @name ngModel.NgModelController#$setTouched * * @description * Sets the control to its touched state. * * This method can be called to remove the `ng-untouched` class and set the control to its * touched state (`ng-touched` class). A model is considered to be touched when the user has * first focused the control element and then shifted focus away from the control (blur event). */ $setTouched: function() { this.$touched = true; this.$untouched = false; this.$$animate.setClass(this.$$element, TOUCHED_CLASS, UNTOUCHED_CLASS); }, /** * @ngdoc method * @name ngModel.NgModelController#$rollbackViewValue * * @description * Cancel an update and reset the input element's value to prevent an update to the `$modelValue`, * which may be caused by a pending debounced event or because the input is waiting for some * future event. * * If you have an input that uses `ng-model-options` to set up debounced updates or updates that * depend on special events such as `blur`, there can be a period when the `$viewValue` is out of * sync with the ngModel's `$modelValue`. * * In this case, you can use `$rollbackViewValue()` to manually cancel the debounced / future update * and reset the input to the last committed view value. * * It is also possible that you run into difficulties if you try to update the ngModel's `$modelValue` * programmatically before these debounced/future events have resolved/occurred, because Angular's * dirty checking mechanism is not able to tell whether the model has actually changed or not. * * The `$rollbackViewValue()` method should be called before programmatically changing the model of an * input which may have such events pending. This is important in order to make sure that the * input field will be updated with the new model value and any pending operations are cancelled. * * * * angular.module('cancel-update-example', []) * * .controller('CancelUpdateController', ['$scope', function($scope) { * $scope.model = {value1: '', value2: ''}; * * $scope.setEmpty = function(e, value, rollback) { * if (e.keyCode === 27) { * e.preventDefault(); * if (rollback) { * $scope.myForm[value].$rollbackViewValue(); * } * $scope.model[value] = ''; * } * }; * }]); * * *
*

Both of these inputs are only updated if they are blurred. Hitting escape should * empty them. Follow these steps and observe the difference:

*
    *
  1. Type something in the input. You will see that the model is not yet updated
    2. *
  2. Press the Escape key. *
      *
    1. In the first example, nothing happens, because the model is already '', and no * update is detected. If you blur the input, the model will be set to the current view. *
      2. *
    2. In the second example, the pending update is cancelled, and the input is set back * to the last committed view value (''). Blurring the input does nothing. *
      3. *
    *
    3. *
* *
*
*

Without $rollbackViewValue():

* * value1: "{{ model.value1 }}" *
* *
*

With $rollbackViewValue():

* * value2: "{{ model.value2 }}" *
*
*
* div { display: table-cell; } div:nth-child(1) { padding-right: 30px; } * */ $rollbackViewValue: function() { this.$$timeout.cancel(this.$$pendingDebounce); this.$viewValue = this.$$lastCommittedViewValue; this.$render(); }, /** * @ngdoc method * @name ngModel.NgModelController#$validate * * @description * Runs each of the registered validators (first synchronous validators and then * asynchronous validators). * If the validity changes to invalid, the model will be set to `undefined`, * unless {@link ngModelOptions `ngModelOptions.allowInvalid`} is `true`. * If the validity changes to valid, it will set the model to the last available valid * `$modelValue`, i.e. either the last parsed value or the last value set from the scope. */ $validate: function() { // ignore $validate before model is initialized if (isNumberNaN(this.$modelValue)) { return; } var viewValue = this.$$lastCommittedViewValue; // Note: we use the $$rawModelValue as $modelValue might have been // set to undefined during a view -> model update that found validation // errors. We can't parse the view here, since that could change // the model although neither viewValue nor the model on the scope changed var modelValue = this.$$rawModelValue; var prevValid = this.$valid; var prevModelValue = this.$modelValue; var allowInvalid = this.$options.getOption('allowInvalid'); var that = this; this.$$runValidators(modelValue, viewValue, function(allValid) { // If there was no change in validity, don't update the model // This prevents changing an invalid modelValue to undefined if (!allowInvalid && prevValid !== allValid) { // Note: Don't check this.$valid here, as we could have // external validators (e.g. calculated on the server), // that just call $setValidity and need the model value // to calculate their validity. that.$modelValue = allValid ? modelValue : undefined; if (that.$modelValue !== prevModelValue) { that.$$writeModelToScope(); } } }); }, $$runValidators: function(modelValue, viewValue, doneCallback) { this.$$currentValidationRunId++; var localValidationRunId = this.$$currentValidationRunId; var that = this; // check parser error if (!processParseErrors()) { validationDone(false); return; } if (!processSyncValidators()) { validationDone(false); return; } processAsyncValidators(); function processParseErrors() { var errorKey = that.$$parserName || 'parse'; if (isUndefined(that.$$parserValid)) { setValidity(errorKey, null); } else { if (!that.$$parserValid) { forEach(that.$validators, function(v, name) { setValidity(name, null); }); forEach(that.$asyncValidators, function(v, name) { setValidity(name, null); }); } // Set the parse error last, to prevent unsetting it, should a $validators key == parserName setValidity(errorKey, that.$$parserValid); return that.$$parserValid; } return true; } function processSyncValidators() { var syncValidatorsValid = true; forEach(that.$validators, function(validator, name) { var result = Boolean(validator(modelValue, viewValue)); syncValidatorsValid = syncValidatorsValid && result; setValidity(name, result); }); if (!syncValidatorsValid) { forEach(that.$asyncValidators, function(v, name) { setValidity(name, null); }); return false; } return true; } function processAsyncValidators() { var validatorPromises = []; var allValid = true; forEach(that.$asyncValidators, function(validator, name) { var promise = validator(modelValue, viewValue); if (!isPromiseLike(promise)) { throw ngModelMinErr('nopromise', 'Expected asynchronous validator to return a promise but got \'{0}\' instead.', promise); } setValidity(name, undefined); validatorPromises.push(promise.then(function() { setValidity(name, true); }, function() { allValid = false; setValidity(name, false); })); }); if (!validatorPromises.length) { validationDone(true); } else { that.$$q.all(validatorPromises).then(function() { validationDone(allValid); }, noop); } } function setValidity(name, isValid) { if (localValidationRunId === that.$$currentValidationRunId) { that.$setValidity(name, isValid); } } function validationDone(allValid) { if (localValidationRunId === that.$$currentValidationRunId) { doneCallback(allValid); } } }, /** * @ngdoc method * @name ngModel.NgModelController#$commitViewValue * * @description * Commit a pending update to the `$modelValue`. * * Updates may be pending by a debounced event or because the input is waiting for a some future * event defined in `ng-model-options`. this method is rarely needed as `NgModelController` * usually handles calling this in response to input events. */ $commitViewValue: function() { var viewValue = this.$viewValue; this.$$timeout.cancel(this.$$pendingDebounce); // If the view value has not changed then we should just exit, except in the case where there is // a native validator on the element. In this case the validation state may have changed even though // the viewValue has stayed empty. if (this.$$lastCommittedViewValue === viewValue && (viewValue !== '' || !this.$$hasNativeValidators)) { return; } this.$$updateEmptyClasses(viewValue); this.$$lastCommittedViewValue = viewValue; // change to dirty if (this.$pristine) { this.$setDirty(); } this.$$parseAndValidate(); }, $$parseAndValidate: function() { var viewValue = this.$$lastCommittedViewValue; var modelValue = viewValue; var that = this; this.$$parserValid = isUndefined(modelValue) ? undefined : true; if (this.$$parserValid) { for (var i = 0; i < this.$parsers.length; i++) { modelValue = this.$parsers[i](modelValue); if (isUndefined(modelValue)) { this.$$parserValid = false; break; } } } if (isNumberNaN(this.$modelValue)) { // this.$modelValue has not been touched yet... this.$modelValue = this.$$ngModelGet(this.$$scope); } var prevModelValue = this.$modelValue; var allowInvalid = this.$options.getOption('allowInvalid'); this.$$rawModelValue = modelValue; if (allowInvalid) { this.$modelValue = modelValue; writeToModelIfNeeded(); } // Pass the $$lastCommittedViewValue here, because the cached viewValue might be out of date. // This can happen if e.g. $setViewValue is called from inside a parser this.$$runValidators(modelValue, this.$$lastCommittedViewValue, function(allValid) { if (!allowInvalid) { // Note: Don't check this.$valid here, as we could have // external validators (e.g. calculated on the server), // that just call $setValidity and need the model value // to calculate their validity. that.$modelValue = allValid ? modelValue : undefined; writeToModelIfNeeded(); } }); function writeToModelIfNeeded() { if (that.$modelValue !== prevModelValue) { that.$$writeModelToScope(); } } }, $$writeModelToScope: function() { this.$$ngModelSet(this.$$scope, this.$modelValue); forEach(this.$viewChangeListeners, function(listener) { try { listener(); } catch (e) { // eslint-disable-next-line no-invalid-this this.$$exceptionHandler(e); } }, this); }, /** * @ngdoc method * @name ngModel.NgModelController#$setViewValue * * @description * Update the view value. * * This method should be called when a control wants to change the view value; typically, * this is done from within a DOM event handler. For example, the {@link ng.directive:input input} * directive calls it when the value of the input changes and {@link ng.directive:select select} * calls it when an option is selected. * * When `$setViewValue` is called, the new `value` will be staged for committing through the `$parsers` * and `$validators` pipelines. If there are no special {@link ngModelOptions} specified then the staged * value sent directly for processing, finally to be applied to `$modelValue` and then the * **expression** specified in the `ng-model` attribute. Lastly, all the registered change listeners, * in the `$viewChangeListeners` list, are called. * * In case the {@link ng.directive:ngModelOptions ngModelOptions} directive is used with `updateOn` * and the `default` trigger is not listed, all those actions will remain pending until one of the * `updateOn` events is triggered on the DOM element. * All these actions will be debounced if the {@link ng.directive:ngModelOptions ngModelOptions} * directive is used with a custom debounce for this particular event. * Note that a `$digest` is only triggered once the `updateOn` events are fired, or if `debounce` * is specified, once the timer runs out. * * When used with standard inputs, the view value will always be a string (which is in some cases * parsed into another type, such as a `Date` object for `input[date]`.) * However, custom controls might also pass objects to this method. In this case, we should make * a copy of the object before passing it to `$setViewValue`. This is because `ngModel` does not * perform a deep watch of objects, it only looks for a change of identity. If you only change * the property of the object then ngModel will not realize that the object has changed and * will not invoke the `$parsers` and `$validators` pipelines. For this reason, you should * not change properties of the copy once it has been passed to `$setViewValue`. * Otherwise you may cause the model value on the scope to change incorrectly. * *
* In any case, the value passed to the method should always reflect the current value * of the control. For example, if you are calling `$setViewValue` for an input element, * you should pass the input DOM value. Otherwise, the control and the scope model become * out of sync. It's also important to note that `$setViewValue` does not call `$render` or change * the control's DOM value in any way. If we want to change the control's DOM value * programmatically, we should update the `ngModel` scope expression. Its new value will be * picked up by the model controller, which will run it through the `$formatters`, `$render` it * to update the DOM, and finally call `$validate` on it. *
* * @param {*} value value from the view. * @param {string} trigger Event that triggered the update. */ $setViewValue: function(value, trigger) { this.$viewValue = value; if (this.$options.getOption('updateOnDefault')) { this.$$debounceViewValueCommit(trigger); } }, $$debounceViewValueCommit: function(trigger) { var debounceDelay = this.$options.getOption('debounce'); if (isNumber(debounceDelay[trigger])) { debounceDelay = debounceDelay[trigger]; } else if (isNumber(debounceDelay['default'])) { debounceDelay = debounceDelay['default']; } this.$$timeout.cancel(this.$$pendingDebounce); var that = this; if (debounceDelay > 0) { // this fails if debounceDelay is an object this.$$pendingDebounce = this.$$timeout(function() { that.$commitViewValue(); }, debounceDelay); } else if (this.$$scope.$root.$$phase) { this.$commitViewValue(); } else { this.$$scope.$apply(function() { that.$commitViewValue(); }); } } }; function setupModelWatcher(ctrl) { // model -> value // Note: we cannot use a normal scope.$watch as we want to detect the following: // 1. scope value is 'a' // 2. user enters 'b' // 3. ng-change kicks in and reverts scope value to 'a' // -> scope value did not change since the last digest as // ng-change executes in apply phase // 4. view should be changed back to 'a' ctrl.$$scope.$watch(function ngModelWatch() { var modelValue = ctrl.$$ngModelGet(ctrl.$$scope); // if scope model value and ngModel value are out of sync // TODO(perf): why not move this to the action fn? if (modelValue !== ctrl.$modelValue && // checks for NaN is needed to allow setting the model to NaN when there's an asyncValidator // eslint-disable-next-line no-self-compare (ctrl.$modelValue === ctrl.$modelValue || modelValue === modelValue) ) { ctrl.$modelValue = ctrl.$$rawModelValue = modelValue; ctrl.$$parserValid = undefined; var formatters = ctrl.$formatters, idx = formatters.length; var viewValue = modelValue; while (idx--) { viewValue = formatters[idx](viewValue); } if (ctrl.$viewValue !== viewValue) { ctrl.$$updateEmptyClasses(viewValue); ctrl.$viewValue = ctrl.$$lastCommittedViewValue = viewValue; ctrl.$render(); // It is possible that model and view value have been updated during render ctrl.$$runValidators(ctrl.$modelValue, ctrl.$viewValue, noop); } } return modelValue; }); } /** * @ngdoc method * @name ngModel.NgModelController#$setValidity * * @description * Change the validity state, and notify the form. * * This method can be called within $parsers/$formatters or a custom validation implementation. * However, in most cases it should be sufficient to use the `ngModel.$validators` and * `ngModel.$asyncValidators` collections which will call `$setValidity` automatically. * * @param {string} validationErrorKey Name of the validator. The `validationErrorKey` will be assigned * to either `$error[validationErrorKey]` or `$pending[validationErrorKey]` * (for unfulfilled `$asyncValidators`), so that it is available for data-binding. * The `validationErrorKey` should be in camelCase and will get converted into dash-case * for class name. Example: `myError` will result in `ng-valid-my-error` and `ng-invalid-my-error` * class and can be bound to as `{{someForm.someControl.$error.myError}}` . * @param {boolean} isValid Whether the current state is valid (true), invalid (false), pending (undefined), * or skipped (null). Pending is used for unfulfilled `$asyncValidators`. * Skipped is used by Angular when validators do not run because of parse errors and * when `$asyncValidators` do not run because any of the `$validators` failed. */ addSetValidityMethod({ clazz: NgModelController, set: function(object, property) { object[property] = true; }, unset: function(object, property) { delete object[property]; } }); /** * @ngdoc directive * @name ngModel * * @element input * @priority 1 * * @description * The `ngModel` directive binds an `input`,`select`, `textarea` (or custom form control) to a * property on the scope using {@link ngModel.NgModelController NgModelController}, * which is created and exposed by this directive. * * `ngModel` is responsible for: * * - Binding the view into the model, which other directives such as `input`, `textarea` or `select` * require. * - Providing validation behavior (i.e. required, number, email, url). * - Keeping the state of the control (valid/invalid, dirty/pristine, touched/untouched, validation errors). * - Setting related css classes on the element (`ng-valid`, `ng-invalid`, `ng-dirty`, `ng-pristine`, `ng-touched`, * `ng-untouched`, `ng-empty`, `ng-not-empty`) including animations. * - Registering the control with its parent {@link ng.directive:form form}. * * Note: `ngModel` will try to bind to the property given by evaluating the expression on the * current scope. If the property doesn't already exist on this scope, it will be created * implicitly and added to the scope. * * For best practices on using `ngModel`, see: * * - [Understanding Scopes](https://github.com/angular/angular.js/wiki/Understanding-Scopes) * * For basic examples, how to use `ngModel`, see: * * - {@link ng.directive:input input} * - {@link input[text] text} * - {@link input[checkbox] checkbox} * - {@link input[radio] radio} * - {@link input[number] number} * - {@link input[email] email} * - {@link input[url] url} * - {@link input[date] date} * - {@link input[datetime-local] datetime-local} * - {@link input[time] time} * - {@link input[month] month} * - {@link input[week] week} * - {@link ng.directive:select select} * - {@link ng.directive:textarea textarea} * * # Complex Models (objects or collections) * * By default, `ngModel` watches the model by reference, not value. This is important to know when * binding inputs to models that are objects (e.g. `Date`) or collections (e.g. arrays). If only properties of the * object or collection change, `ngModel` will not be notified and so the input will not be re-rendered. * * The model must be assigned an entirely new object or collection before a re-rendering will occur. * * Some directives have options that will cause them to use a custom `$watchCollection` on the model expression * - for example, `ngOptions` will do so when a `track by` clause is included in the comprehension expression or * if the select is given the `multiple` attribute. * * The `$watchCollection()` method only does a shallow comparison, meaning that changing properties deeper than the * first level of the object (or only changing the properties of an item in the collection if it's an array) will still * not trigger a re-rendering of the model. * * # CSS classes * The following CSS classes are added and removed on the associated input/select/textarea element * depending on the validity of the model. * * - `ng-valid`: the model is valid * - `ng-invalid`: the model is invalid * - `ng-valid-[key]`: for each valid key added by `$setValidity` * - `ng-invalid-[key]`: for each invalid key added by `$setValidity` * - `ng-pristine`: the control hasn't been interacted with yet * - `ng-dirty`: the control has been interacted with * - `ng-touched`: the control has been blurred * - `ng-untouched`: the control hasn't been blurred * - `ng-pending`: any `$asyncValidators` are unfulfilled * - `ng-empty`: the view does not contain a value or the value is deemed "empty", as defined * by the {@link ngModel.NgModelController#$isEmpty} method * - `ng-not-empty`: the view contains a non-empty value * * Keep in mind that ngAnimate can detect each of these classes when added and removed. * * ## Animation Hooks * * Animations within models are triggered when any of the associated CSS classes are added and removed * on the input element which is attached to the model. These classes include: `.ng-pristine`, `.ng-dirty`, * `.ng-invalid` and `.ng-valid` as well as any other validations that are performed on the model itself. * The animations that are triggered within ngModel are similar to how they work in ngClass and * animations can be hooked into using CSS transitions, keyframes as well as JS animations. * * The following example shows a simple way to utilize CSS transitions to style an input element * that has been rendered as invalid after it has been validated: * * 
 * //be sure to include ngAnimate as a module to hook into more
 * //advanced animations
 * .my-input {
 *   transition:0.5s linear all;
 *   background: white;
 * }
 * .my-input.ng-invalid {
 *   background: red;
 *   color:white;
 * }
 *
* * @example *

Update input to see transitions when valid/invalid. Integer is a valid value.

* * * ## Binding to a getter/setter * * Sometimes it's helpful to bind `ngModel` to a getter/setter function. A getter/setter is a * function that returns a representation of the model when called with zero arguments, and sets * the internal state of a model when called with an argument. It's sometimes useful to use this * for models that have an internal representation that's different from what the model exposes * to the view. * *
* **Best Practice:** It's best to keep getters fast because Angular is likely to call them more * frequently than other parts of your code. *
* * You use this behavior by adding `ng-model-options="{ getterSetter: true }"` to an element that * has `ng-model` attached to it. You can also add `ng-model-options="{ getterSetter: true }"` to * a `
`, which will enable this behavior for all ``s within it. See * {@link ng.directive:ngModelOptions `ngModelOptions`} for more. * * The following example shows how to use `ngModel` with a getter/setter: * * @example * 
user.name =
angular.module('getterSetterExample', []) .controller('ExampleController', ['$scope', function($scope) { var _name = 'Brian'; $scope.user = { name: function(newName) { // Note that newName can be undefined for two reasons: // 1. Because it is called as a getter and thus called with no arguments // 2. Because the property should actually be set to undefined. This happens e.g. if the // input is invalid return arguments.length ? (_name = newName) : _name; } }; }]); *
*/ var ngModelDirective = ['$rootScope', function($rootScope) { return { restrict: 'A', require: ['ngModel', '^?form', '^?ngModelOptions'], controller: NgModelController, // Prelink needs to run before any input directive // so that we can set the NgModelOptions in NgModelController // before anyone else uses it. priority: 1, compile: function ngModelCompile(element) { // Setup initial state of the control element.addClass(PRISTINE_CLASS).addClass(UNTOUCHED_CLASS).addClass(VALID_CLASS); return { pre: function ngModelPreLink(scope, element, attr, ctrls) { var modelCtrl = ctrls[0], formCtrl = ctrls[1] || modelCtrl.$$parentForm, optionsCtrl = ctrls[2]; if (optionsCtrl) { modelCtrl.$options = optionsCtrl.$options; } modelCtrl.$$initGetterSetters(); // notify others, especially parent forms formCtrl.$addControl(modelCtrl); attr.$observe('name', function(newValue) { if (modelCtrl.$name !== newValue) { modelCtrl.$$parentForm.$$renameControl(modelCtrl, newValue); } }); scope.$on('$destroy', function() { modelCtrl.$$parentForm.$removeControl(modelCtrl); }); }, post: function ngModelPostLink(scope, element, attr, ctrls) { var modelCtrl = ctrls[0]; if (modelCtrl.$options.getOption('updateOn')) { element.on(modelCtrl.$options.getOption('updateOn'), function(ev) { modelCtrl.$$debounceViewValueCommit(ev && ev.type); }); } function setTouched() { modelCtrl.$setTouched(); } element.on('blur', function() { if (modelCtrl.$touched) return; if ($rootScope.$$phase) { scope.$evalAsync(setTouched); } else { scope.$apply(setTouched); } }); } }; } }; }]; /* exported defaultModelOptions */ var defaultModelOptions; var DEFAULT_REGEXP = /(\s+|^)default(\s+|$)/; /** * @ngdoc type * @name ModelOptions * @description * A container for the options set by the {@link ngModelOptions} directive */ function ModelOptions(options) { this.$$options = options; } ModelOptions.prototype = { /** * @ngdoc method * @name ModelOptions#getOption * @param {string} name the name of the option to retrieve * @returns {*} the value of the option * @description * Returns the value of the given option */ getOption: function(name) { return this.$$options[name]; }, /** * @ngdoc method * @name ModelOptions#createChild * @param {Object} options a hash of options for the new child that will override the parent's options * @return {ModelOptions} a new `ModelOptions` object initialized with the given options. */ createChild: function(options) { var inheritAll = false; // make a shallow copy options = extend({}, options); // Inherit options from the parent if specified by the value `"$inherit"` forEach(options, /* @this */ function(option, key) { if (option === '$inherit') { if (key === '*') { inheritAll = true; } else { options[key] = this.$$options[key]; // `updateOn` is special so we must also inherit the `updateOnDefault` option if (key === 'updateOn') { options.updateOnDefault = this.$$options.updateOnDefault; } } } else { if (key === 'updateOn') { // If the `updateOn` property contains the `default` event then we have to remove // it from the event list and set the `updateOnDefault` flag. options.updateOnDefault = false; options[key] = trim(option.replace(DEFAULT_REGEXP, function() { options.updateOnDefault = true; return ' '; })); } } }, this); if (inheritAll) { // We have a property of the form: `"*": "$inherit"` delete options['*']; defaults(options, this.$$options); } // Finally add in any missing defaults defaults(options, defaultModelOptions.$$options); return new ModelOptions(options); } }; defaultModelOptions = new ModelOptions({ updateOn: '', updateOnDefault: true, debounce: 0, getterSetter: false, allowInvalid: false, timezone: null }); /** * @ngdoc directive * @name ngModelOptions * * @description * This directive allows you to modify the behaviour of {@link ngModel} directives within your * application. You can specify an `ngModelOptions` directive on any element. All {@link ngModel} * directives will use the options of their nearest `ngModelOptions` ancestor. * * The `ngModelOptions` settings are found by evaluating the value of the attribute directive as * an Angular expression. This expression should evaluate to an object, whose properties contain * the settings. For example: `
*
* *
*
* ``` * * the `input` element will have the following settings * * ```js * { allowInvalid: true, updateOn: 'default', debounce: 0 } * ``` * * Notice that the `debounce` setting was not inherited and used the default value instead. * * You can specify that all undefined settings are automatically inherited from an ancestor by * including a property with key of `"*"` and value of `"$inherit"`. * * For example given the following fragment of HTML * * * ```html *
*
* *
*
* ``` * * the `input` element will have the following settings * * ```js * { allowInvalid: true, updateOn: 'default', debounce: 200 } * ``` * * Notice that the `debounce` setting now inherits the value from the outer `
` element. * * If you are creating a reusable component then you should be careful when using `"*": "$inherit"` * since you may inadvertently inherit a setting in the future that changes the behavior of your component. * * * ## Triggering and debouncing model updates * * The `updateOn` and `debounce` properties allow you to specify a custom list of events that will * trigger a model update and/or a debouncing delay so that the actual update only takes place when * a timer expires; this timer will be reset after another change takes place. * * Given the nature of `ngModelOptions`, the value displayed inside input fields in the view might * be different from the value in the actual model. This means that if you update the model you * should also invoke {@link ngModel.NgModelController#$rollbackViewValue} on the relevant input field in * order to make sure it is synchronized with the model and that any debounced action is canceled. * * The easiest way to reference the control's {@link ngModel.NgModelController#$rollbackViewValue} * method is by making sure the input is placed inside a form that has a `name` attribute. This is * important because `form` controllers are published to the related scope under the name in their * `name` attribute. * * Any pending changes will take place immediately when an enclosing form is submitted via the * `submit` event. Note that `ngClick` events will occur before the model is updated. Use `ngSubmit` * to have access to the updated model. * * The following example shows how to override immediate updates. Changes on the inputs within the * form will update the model only when the control loses focus (blur event). If `escape` key is * pressed while the input field is focused, the value is reset to the value in the current model. * * * *
*
*
*
*
* 
user.name =
*
* * * angular.module('optionsExample', []) * .controller('ExampleController', ['$scope', function($scope) { * $scope.user = { name: 'say', data: '' }; * * $scope.cancel = function(e) { * if (e.keyCode === 27) { * $scope.userForm.userName.$rollbackViewValue(); * } * }; * }]); * * * var model = element(by.binding('user.name')); * var input = element(by.model('user.name')); * var other = element(by.model('user.data')); * * it('should allow custom events', function() { * input.sendKeys(' hello'); * input.click(); * expect(model.getText()).toEqual('say'); * other.click(); * expect(model.getText()).toEqual('say hello'); * }); * * it('should $rollbackViewValue when model changes', function() { * input.sendKeys(' hello'); * expect(input.getAttribute('value')).toEqual('say hello'); * input.sendKeys(protractor.Key.ESCAPE); * expect(input.getAttribute('value')).toEqual('say'); * other.click(); * expect(model.getText()).toEqual('say'); * }); * * * * The next example shows how to debounce model changes. Model will be updated only 1 sec after last change. * If the `Clear` button is pressed, any debounced action is canceled and the value becomes empty. * * * *
*
* Name: * *
*
* 
user.name =
*
* * * angular.module('optionsExample', []) * .controller('ExampleController', ['$scope', function($scope) { * $scope.user = { name: 'say' }; * }]); * * * * ## Model updates and validation * * The default behaviour in `ngModel` is that the model value is set to `undefined` when the * validation determines that the value is invalid. By setting the `allowInvalid` property to true, * the model will still be updated even if the value is invalid. * * * ## Connecting to the scope * * By setting the `getterSetter` property to true you are telling ngModel that the `ngModel` expression * on the scope refers to a "getter/setter" function rather than the value itself. * * The following example shows how to bind to getter/setters: * * * *
*
* *
* 
user.name =
*
* * * angular.module('getterSetterExample', []) * .controller('ExampleController', ['$scope', function($scope) { * var _name = 'Brian'; * $scope.user = { * name: function(newName) { * return angular.isDefined(newName) ? (_name = newName) : _name; * } * }; * }]); * * * * * ## Specifying timezones * * You can specify the timezone that date/time input directives expect by providing its name in the * `timezone` property. * * @param {Object} ngModelOptions options to apply to {@link ngModel} directives on this element and * and its descendents. Valid keys are: * - `updateOn`: string specifying which event should the input be bound to. You can set several * events using an space delimited list. There is a special event called `default` that * matches the default events belonging to the control. * - `debounce`: integer value which contains the debounce model update value in milliseconds. A * value of 0 triggers an immediate update. If an object is supplied instead, you can specify a * custom value for each event. For example: * ``` * ng-model-options="{ * updateOn: 'default blur', * debounce: { 'default': 500, 'blur': 0 } * }" * ``` * - `allowInvalid`: boolean value which indicates that the model can be set with values that did * not validate correctly instead of the default behavior of setting the model to undefined. * - `getterSetter`: boolean value which determines whether or not to treat functions bound to * `ngModel` as getters/setters. * - `timezone`: Defines the timezone to be used to read/write the `Date` instance in the model for * ``, ``, ... . It understands UTC/GMT and the * continental US time zone abbreviations, but for general use, use a time zone offset, for * example, `'+0430'` (4 hours, 30 minutes east of the Greenwich meridian) * If not specified, the timezone of the browser will be used. * */ var ngModelOptionsDirective = function() { NgModelOptionsController.$inject = ['$attrs', '$scope']; function NgModelOptionsController($attrs, $scope) { this.$$attrs = $attrs; this.$$scope = $scope; } NgModelOptionsController.prototype = { $onInit: function() { var parentOptions = this.parentCtrl ? this.parentCtrl.$options : defaultModelOptions; var modelOptionsDefinition = this.$$scope.$eval(this.$$attrs.ngModelOptions); this.$options = parentOptions.createChild(modelOptionsDefinition); } }; return { restrict: 'A', // ngModelOptions needs to run before ngModel and input directives priority: 10, require: {parentCtrl: '?^^ngModelOptions'}, bindToController: true, controller: NgModelOptionsController }; }; // shallow copy over values from `src` that are not already specified on `dst` function defaults(dst, src) { forEach(src, function(value, key) { if (!isDefined(dst[key])) { dst[key] = value; } }); } /** * @ngdoc directive * @name ngNonBindable * @restrict AC * @priority 1000 * * @description * The `ngNonBindable` directive tells Angular not to compile or bind the contents of the current * DOM element. This is useful if the element contains what appears to be Angular directives and * bindings but which should be ignored by Angular. This could be the case if you have a site that * displays snippets of code, for instance. * * @element ANY * * @example * In this example there are two locations where a simple interpolation binding (`{{}}`) is present, * but the one wrapped in `ngNonBindable` is left alone. * * @example
Normal: {{1 + 2}}
Ignored: {{1 + 2}}
 it('should check ng-non-bindable', function() { expect(element(by.binding('1 + 2')).getText()).toContain('3'); expect(element.all(by.css('div')).last().getText()).toMatch(/1 \+ 2/); }); */ var ngNonBindableDirective = ngDirective({ terminal: true, priority: 1000 }); /* exported ngOptionsDirective */ /* global jqLiteRemove */ var ngOptionsMinErr = minErr('ngOptions'); /** * @ngdoc directive * @name ngOptions * @restrict A * * @description * * The `ngOptions` attribute can be used to dynamically generate a list of `` * DOM element. * * `disable`: The result of this expression will be used to disable the rendered `