Repository: lithdew/quickjs Branch: master Commit: aaa42285c9d2 Files: 27 Total size: 2.3 MB Directory structure: gitextract_q0zhqzu1/ ├── .gitattributes ├── .gitignore ├── LICENSE ├── README.md ├── bridge.c ├── bridge.h ├── cutils.c ├── cutils.h ├── examples/ │ └── main.go ├── go.mod ├── go.sum ├── libbf.c ├── libbf.h ├── libregexp-opcode.h ├── libregexp.c ├── libregexp.h ├── libunicode-table.h ├── libunicode.c ├── libunicode.h ├── list.h ├── quickjs-atom.h ├── quickjs-opcode.h ├── quickjs.c ├── quickjs.go ├── quickjs.h ├── quickjs_test.go └── version.h ================================================ FILE CONTENTS ================================================ ================================================ FILE: .gitattributes ================================================ # Set the default behavior, in case people don't have core.autocrlf set * text=auto # Require Unix line endings * text eol=lf ================================================ FILE: .gitignore ================================================ .idea/ ================================================ FILE: LICENSE ================================================ MIT License Copyright (c) 2020 Kenta Iwasaki Copyright (c) 2017-2020 Fabrice Bellard Copyright (c) 2017-2020 Charlie Gordon 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: README.md ================================================ # quickjs [![MIT License](https://img.shields.io/apm/l/atomic-design-ui.svg?)](LICENSE) [![go.dev reference](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/github.com/lithdew/quickjs) [![Discord Chat](https://img.shields.io/discord/697002823123992617)](https://discord.gg/HZEbkeQ) Go bindings to [QuickJS](https://bellard.org/quickjs/): a fast, small, and embeddable [ES2020](https://tc39.github.io/ecma262/) JavaScript interpreter. These bindings are a WIP and do not match full parity with QuickJS' API, though expose just enough features to be usable. The version of QuickJS that these bindings bind to may be located [here](version.h). These bindings have been tested to cross-compile and run successfully on Linux, Windows, and Mac using gcc-7 and mingw32 without any addtional compiler or linker flags. ## Usage ``` $ go get github.com/lithdew/quickjs ``` ## Guidelines 1. Free `quickjs.Runtime` and `quickjs.Context` once you are done using them. 2. Free `quickjs.Value`'s returned by `Eval()` and `EvalFile()`. All other values do not need to be freed, as they get garbage-collected. 3. You may access the stacktrace of an error returned by `Eval()` or `EvalFile()` by casting it to a `*quickjs.Error`. 4. Make new copies of arguments should you want to return them in functions you created. 5. Make sure to call `runtime.LockOSThread()` to ensure that QuickJS always operates in the exact same thread. ## Example The full example code below may be found by clicking [here](examples/main.go). Find more API examples [here](quickjs_test.go). ```go package main import ( "errors" "flag" "fmt" "github.com/lithdew/quickjs" "strings" ) func check(err error) { if err != nil { var evalErr *quickjs.Error if errors.As(err, &evalErr) { fmt.Println(evalErr.Cause) fmt.Println(evalErr.Stack) } panic(err) } } func main() { runtime := quickjs.NewRuntime() defer runtime.Free() context := runtime.NewContext() defer context.Free() globals := context.Globals() // Test evaluating template strings. result, err := context.Eval("`Hello world! 2 ** 8 = ${2 ** 8}.`") check(err) defer result.Free() fmt.Println(result.String()) fmt.Println() // Test evaluating numeric expressions. result, err = context.Eval(`1 + 2 * 100 - 3 + Math.sin(10)`) check(err) defer result.Free() fmt.Println(result.Int64()) fmt.Println() // Test evaluating big integer expressions. result, err = context.Eval(`128n ** 16n`) check(err) defer result.Free() fmt.Println(result.BigInt()) fmt.Println() // Test evaluating big decimal expressions. result, err = context.Eval(`128l ** 12l`) check(err) defer result.Free() fmt.Println(result.BigFloat()) fmt.Println() // Test evaluating boolean expressions. result, err = context.Eval(`false && true`) check(err) defer result.Free() fmt.Println(result.Bool()) fmt.Println() // Test setting and calling functions. A := func(ctx *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { fmt.Println("A got called!") return ctx.Null() } B := func(ctx *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { fmt.Println("B got called!") return ctx.Null() } globals.Set("A", context.Function(A)) globals.Set("B", context.Function(B)) _, err = context.Eval(`for (let i = 0; i < 10; i++) { if (i % 2 === 0) A(); else B(); }`) check(err) fmt.Println() // Test setting global variables. _, err = context.Eval(`HELLO = "world"; TEST = false;`) check(err) names, err := globals.PropertyNames() check(err) fmt.Println("Globals:") for _, name := range names { val := globals.GetByAtom(name.Atom) defer val.Free() fmt.Printf("'%s': %s\n", name, val) } fmt.Println() // Test evaluating arbitrary expressions from flag arguments. flag.Parse() if flag.NArg() == 0 { return } result, err = context.Eval(strings.Join(flag.Args(), " ")) check(err) defer result.Free() if result.IsObject() { names, err := result.PropertyNames() check(err) fmt.Println("Object:") for _, name := range names { val := result.GetByAtom(name.Atom) defer val.Free() fmt.Printf("'%s': %s\n", name, val) } } else { fmt.Println(result.String()) } } ``` ``` $ go run examples/main.go '(() => ({hello: "world", test: 2 ** 3}))()' Hello world! 2 ** 8 = 256. 197 5192296858534827628530496329220096 1.9342813113834066795e+25 false A got called! B got called! A got called! B got called! A got called! B got called! A got called! B got called! A got called! B got called! Globals: 'Object': function Object() { [native code] } 'Function': function Function() { [native code] } 'Error': function Error() { [native code] } 'EvalError': function EvalError() { [native code] } 'RangeError': function RangeError() { [native code] } 'ReferenceError': function ReferenceError() { [native code] } 'SyntaxError': function SyntaxError() { [native code] } 'TypeError': function TypeError() { [native code] } 'URIError': function URIError() { [native code] } 'InternalError': function InternalError() { [native code] } 'AggregateError': function AggregateError() { [native code] } 'Array': function Array() { [native code] } 'parseInt': function parseInt() { [native code] } 'parseFloat': function parseFloat() { [native code] } 'isNaN': function isNaN() { [native code] } 'isFinite': function isFinite() { [native code] } 'decodeURI': function decodeURI() { [native code] } 'decodeURIComponent': function decodeURIComponent() { [native code] } 'encodeURI': function encodeURI() { [native code] } 'encodeURIComponent': function encodeURIComponent() { [native code] } 'escape': function escape() { [native code] } 'unescape': function unescape() { [native code] } 'Infinity': Infinity 'NaN': NaN 'undefined': undefined '__date_clock': function __date_clock() { [native code] } 'Number': function Number() { [native code] } 'Boolean': function Boolean() { [native code] } 'String': function String() { [native code] } 'Math': [object Math] 'Reflect': [object Object] 'Symbol': function Symbol() { [native code] } 'eval': function eval() { [native code] } 'globalThis': [object Object] 'Date': function Date() { [native code] } 'RegExp': function RegExp() { [native code] } 'JSON': [object JSON] 'Proxy': function Proxy() { [native code] } 'Map': function Map() { [native code] } 'Set': function Set() { [native code] } 'WeakMap': function WeakMap() { [native code] } 'WeakSet': function WeakSet() { [native code] } 'ArrayBuffer': function ArrayBuffer() { [native code] } 'SharedArrayBuffer': function SharedArrayBuffer() { [native code] } 'Uint8ClampedArray': function Uint8ClampedArray() { [native code] } 'Int8Array': function Int8Array() { [native code] } 'Uint8Array': function Uint8Array() { [native code] } 'Int16Array': function Int16Array() { [native code] } 'Uint16Array': function Uint16Array() { [native code] } 'Int32Array': function Int32Array() { [native code] } 'Uint32Array': function Uint32Array() { [native code] } 'BigInt64Array': function BigInt64Array() { [native code] } 'BigUint64Array': function BigUint64Array() { [native code] } 'Float32Array': function Float32Array() { [native code] } 'Float64Array': function Float64Array() { [native code] } 'DataView': function DataView() { [native code] } 'Atomics': [object Atomics] 'Promise': function Promise() { [native code] } 'BigInt': function BigInt() { [native code] } 'BigFloat': function BigFloat() { [native code] } 'BigFloatEnv': function BigFloatEnv() { [native code] } 'BigDecimal': function BigDecimal() { [native code] } 'Operators': function Operators() { [native code] } 'A': function() { return proxy.call(this, id, ...arguments); } 'B': function() { return proxy.call(this, id, ...arguments); } 'HELLO': world 'TEST': false Object: 'hello': world 'test': 8 ``` ## License QuickJS is released under the MIT license. QuickJS bindings are copyright Kenta Iwasaki, with code copyright Fabrice Bellard and Charlie Gordon. ================================================ FILE: bridge.c ================================================ #include "_cgo_export.h" JSValue InvokeProxy(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv) { return proxy(ctx, this_val, argc, argv); } ================================================ FILE: bridge.h ================================================ #include "stdlib.h" #include "quickjs.h" extern JSValue InvokeProxy(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv); static JSValue JS_NewNull() { return JS_NULL; } static JSValue JS_NewUndefined() { return JS_UNDEFINED; } static JSValue JS_NewUninitialized() { return JS_UNINITIALIZED; } static JSValue ThrowSyntaxError(JSContext *ctx, const char *fmt) { return JS_ThrowSyntaxError(ctx, "%s", fmt); } static JSValue ThrowTypeError(JSContext *ctx, const char *fmt) { return JS_ThrowTypeError(ctx, "%s", fmt); } static JSValue ThrowReferenceError(JSContext *ctx, const char *fmt) { return JS_ThrowReferenceError(ctx, "%s", fmt); } static JSValue ThrowRangeError(JSContext *ctx, const char *fmt) { return JS_ThrowRangeError(ctx, "%s", fmt); } static JSValue ThrowInternalError(JSContext *ctx, const char *fmt) { return JS_ThrowInternalError(ctx, "%s", fmt); } ================================================ FILE: cutils.c ================================================ /* * C utilities * * Copyright (c) 2017 Fabrice Bellard * Copyright (c) 2018 Charlie Gordon * * 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. */ #include #include #include #include #include "cutils.h" void pstrcpy(char *buf, int buf_size, const char *str) { int c; char *q = buf; if (buf_size <= 0) return; for(;;) { c = *str++; if (c == 0 || q >= buf + buf_size - 1) break; *q++ = c; } *q = '\0'; } /* strcat and truncate. */ char *pstrcat(char *buf, int buf_size, const char *s) { int len; len = strlen(buf); if (len < buf_size) pstrcpy(buf + len, buf_size - len, s); return buf; } int strstart(const char *str, const char *val, const char **ptr) { const char *p, *q; p = str; q = val; while (*q != '\0') { if (*p != *q) return 0; p++; q++; } if (ptr) *ptr = p; return 1; } int has_suffix(const char *str, const char *suffix) { size_t len = strlen(str); size_t slen = strlen(suffix); return (len >= slen && !memcmp(str + len - slen, suffix, slen)); } /* Dynamic buffer package */ static void *dbuf_default_realloc(void *opaque, void *ptr, size_t size) { return realloc(ptr, size); } void dbuf_init2(DynBuf *s, void *opaque, DynBufReallocFunc *realloc_func) { memset(s, 0, sizeof(*s)); if (!realloc_func) realloc_func = dbuf_default_realloc; s->opaque = opaque; s->realloc_func = realloc_func; } void dbuf_init(DynBuf *s) { dbuf_init2(s, NULL, NULL); } /* return < 0 if error */ int dbuf_realloc(DynBuf *s, size_t new_size) { size_t size; uint8_t *new_buf; if (new_size > s->allocated_size) { if (s->error) return -1; size = s->allocated_size * 3 / 2; if (size > new_size) new_size = size; new_buf = s->realloc_func(s->opaque, s->buf, new_size); if (!new_buf) { s->error = TRUE; return -1; } s->buf = new_buf; s->allocated_size = new_size; } return 0; } int dbuf_write(DynBuf *s, size_t offset, const uint8_t *data, size_t len) { size_t end; end = offset + len; if (dbuf_realloc(s, end)) return -1; memcpy(s->buf + offset, data, len); if (end > s->size) s->size = end; return 0; } int dbuf_put(DynBuf *s, const uint8_t *data, size_t len) { if (unlikely((s->size + len) > s->allocated_size)) { if (dbuf_realloc(s, s->size + len)) return -1; } memcpy(s->buf + s->size, data, len); s->size += len; return 0; } int dbuf_put_self(DynBuf *s, size_t offset, size_t len) { if (unlikely((s->size + len) > s->allocated_size)) { if (dbuf_realloc(s, s->size + len)) return -1; } memcpy(s->buf + s->size, s->buf + offset, len); s->size += len; return 0; } int dbuf_putc(DynBuf *s, uint8_t c) { return dbuf_put(s, &c, 1); } int dbuf_putstr(DynBuf *s, const char *str) { return dbuf_put(s, (const uint8_t *)str, strlen(str)); } int __attribute__((format(printf, 2, 3))) dbuf_printf(DynBuf *s, const char *fmt, ...) { va_list ap; char buf[128]; int len; va_start(ap, fmt); len = vsnprintf(buf, sizeof(buf), fmt, ap); va_end(ap); if (len < sizeof(buf)) { /* fast case */ return dbuf_put(s, (uint8_t *)buf, len); } else { if (dbuf_realloc(s, s->size + len + 1)) return -1; va_start(ap, fmt); vsnprintf((char *)(s->buf + s->size), s->allocated_size - s->size, fmt, ap); va_end(ap); s->size += len; } return 0; } void dbuf_free(DynBuf *s) { /* we test s->buf as a fail safe to avoid crashing if dbuf_free() is called twice */ if (s->buf) { s->realloc_func(s->opaque, s->buf, 0); } memset(s, 0, sizeof(*s)); } /* Note: at most 31 bits are encoded. At most UTF8_CHAR_LEN_MAX bytes are output. */ int unicode_to_utf8(uint8_t *buf, unsigned int c) { uint8_t *q = buf; if (c < 0x80) { *q++ = c; } else { if (c < 0x800) { *q++ = (c >> 6) | 0xc0; } else { if (c < 0x10000) { *q++ = (c >> 12) | 0xe0; } else { if (c < 0x00200000) { *q++ = (c >> 18) | 0xf0; } else { if (c < 0x04000000) { *q++ = (c >> 24) | 0xf8; } else if (c < 0x80000000) { *q++ = (c >> 30) | 0xfc; *q++ = ((c >> 24) & 0x3f) | 0x80; } else { return 0; } *q++ = ((c >> 18) & 0x3f) | 0x80; } *q++ = ((c >> 12) & 0x3f) | 0x80; } *q++ = ((c >> 6) & 0x3f) | 0x80; } *q++ = (c & 0x3f) | 0x80; } return q - buf; } static const unsigned int utf8_min_code[5] = { 0x80, 0x800, 0x10000, 0x00200000, 0x04000000, }; static const unsigned char utf8_first_code_mask[5] = { 0x1f, 0xf, 0x7, 0x3, 0x1, }; /* return -1 if error. *pp is not updated in this case. max_len must be >= 1. The maximum length for a UTF8 byte sequence is 6 bytes. */ int unicode_from_utf8(const uint8_t *p, int max_len, const uint8_t **pp) { int l, c, b, i; c = *p++; if (c < 0x80) { *pp = p; return c; } switch(c) { case 0xc0 ... 0xdf: l = 1; break; case 0xe0 ... 0xef: l = 2; break; case 0xf0 ... 0xf7: l = 3; break; case 0xf8 ... 0xfb: l = 4; break; case 0xfc ... 0xfd: l = 5; break; default: return -1; } /* check that we have enough characters */ if (l > (max_len - 1)) return -1; c &= utf8_first_code_mask[l - 1]; for(i = 0; i < l; i++) { b = *p++; if (b < 0x80 || b >= 0xc0) return -1; c = (c << 6) | (b & 0x3f); } if (c < utf8_min_code[l - 1]) return -1; *pp = p; return c; } #if 0 #if defined(EMSCRIPTEN) || defined(__ANDROID__) static void *rqsort_arg; static int (*rqsort_cmp)(const void *, const void *, void *); static int rqsort_cmp2(const void *p1, const void *p2) { return rqsort_cmp(p1, p2, rqsort_arg); } /* not reentrant, but not needed with emscripten */ void rqsort(void *base, size_t nmemb, size_t size, int (*cmp)(const void *, const void *, void *), void *arg) { rqsort_arg = arg; rqsort_cmp = cmp; qsort(base, nmemb, size, rqsort_cmp2); } #endif #else typedef void (*exchange_f)(void *a, void *b, size_t size); typedef int (*cmp_f)(const void *, const void *, void *opaque); static void exchange_bytes(void *a, void *b, size_t size) { uint8_t *ap = (uint8_t *)a; uint8_t *bp = (uint8_t *)b; while (size-- != 0) { uint8_t t = *ap; *ap++ = *bp; *bp++ = t; } } static void exchange_one_byte(void *a, void *b, size_t size) { uint8_t *ap = (uint8_t *)a; uint8_t *bp = (uint8_t *)b; uint8_t t = *ap; *ap = *bp; *bp = t; } static void exchange_int16s(void *a, void *b, size_t size) { uint16_t *ap = (uint16_t *)a; uint16_t *bp = (uint16_t *)b; for (size /= sizeof(uint16_t); size-- != 0;) { uint16_t t = *ap; *ap++ = *bp; *bp++ = t; } } static void exchange_one_int16(void *a, void *b, size_t size) { uint16_t *ap = (uint16_t *)a; uint16_t *bp = (uint16_t *)b; uint16_t t = *ap; *ap = *bp; *bp = t; } static void exchange_int32s(void *a, void *b, size_t size) { uint32_t *ap = (uint32_t *)a; uint32_t *bp = (uint32_t *)b; for (size /= sizeof(uint32_t); size-- != 0;) { uint32_t t = *ap; *ap++ = *bp; *bp++ = t; } } static void exchange_one_int32(void *a, void *b, size_t size) { uint32_t *ap = (uint32_t *)a; uint32_t *bp = (uint32_t *)b; uint32_t t = *ap; *ap = *bp; *bp = t; } static void exchange_int64s(void *a, void *b, size_t size) { uint64_t *ap = (uint64_t *)a; uint64_t *bp = (uint64_t *)b; for (size /= sizeof(uint64_t); size-- != 0;) { uint64_t t = *ap; *ap++ = *bp; *bp++ = t; } } static void exchange_one_int64(void *a, void *b, size_t size) { uint64_t *ap = (uint64_t *)a; uint64_t *bp = (uint64_t *)b; uint64_t t = *ap; *ap = *bp; *bp = t; } static void exchange_int128s(void *a, void *b, size_t size) { uint64_t *ap = (uint64_t *)a; uint64_t *bp = (uint64_t *)b; for (size /= sizeof(uint64_t) * 2; size-- != 0; ap += 2, bp += 2) { uint64_t t = ap[0]; uint64_t u = ap[1]; ap[0] = bp[0]; ap[1] = bp[1]; bp[0] = t; bp[1] = u; } } static void exchange_one_int128(void *a, void *b, size_t size) { uint64_t *ap = (uint64_t *)a; uint64_t *bp = (uint64_t *)b; uint64_t t = ap[0]; uint64_t u = ap[1]; ap[0] = bp[0]; ap[1] = bp[1]; bp[0] = t; bp[1] = u; } static inline exchange_f exchange_func(const void *base, size_t size) { switch (((uintptr_t)base | (uintptr_t)size) & 15) { case 0: if (size == sizeof(uint64_t) * 2) return exchange_one_int128; else return exchange_int128s; case 8: if (size == sizeof(uint64_t)) return exchange_one_int64; else return exchange_int64s; case 4: case 12: if (size == sizeof(uint32_t)) return exchange_one_int32; else return exchange_int32s; case 2: case 6: case 10: case 14: if (size == sizeof(uint16_t)) return exchange_one_int16; else return exchange_int16s; default: if (size == 1) return exchange_one_byte; else return exchange_bytes; } } static void heapsortx(void *base, size_t nmemb, size_t size, cmp_f cmp, void *opaque) { uint8_t *basep = (uint8_t *)base; size_t i, n, c, r; exchange_f swap = exchange_func(base, size); if (nmemb > 1) { i = (nmemb / 2) * size; n = nmemb * size; while (i > 0) { i -= size; for (r = i; (c = r * 2 + size) < n; r = c) { if (c < n - size && cmp(basep + c, basep + c + size, opaque) <= 0) c += size; if (cmp(basep + r, basep + c, opaque) > 0) break; swap(basep + r, basep + c, size); } } for (i = n - size; i > 0; i -= size) { swap(basep, basep + i, size); for (r = 0; (c = r * 2 + size) < i; r = c) { if (c < i - size && cmp(basep + c, basep + c + size, opaque) <= 0) c += size; if (cmp(basep + r, basep + c, opaque) > 0) break; swap(basep + r, basep + c, size); } } } } static inline void *med3(void *a, void *b, void *c, cmp_f cmp, void *opaque) { return cmp(a, b, opaque) < 0 ? (cmp(b, c, opaque) < 0 ? b : (cmp(a, c, opaque) < 0 ? c : a )) : (cmp(b, c, opaque) > 0 ? b : (cmp(a, c, opaque) < 0 ? a : c )); } /* pointer based version with local stack and insertion sort threshhold */ void rqsort(void *base, size_t nmemb, size_t size, cmp_f cmp, void *opaque) { struct { uint8_t *base; size_t count; int depth; } stack[50], *sp = stack; uint8_t *ptr, *pi, *pj, *plt, *pgt, *top, *m; size_t m4, i, lt, gt, span, span2; int c, depth; exchange_f swap = exchange_func(base, size); exchange_f swap_block = exchange_func(base, size | 128); if (nmemb < 2 || size <= 0) return; sp->base = (uint8_t *)base; sp->count = nmemb; sp->depth = 0; sp++; while (sp > stack) { sp--; ptr = sp->base; nmemb = sp->count; depth = sp->depth; while (nmemb > 6) { if (++depth > 50) { /* depth check to ensure worst case logarithmic time */ heapsortx(ptr, nmemb, size, cmp, opaque); nmemb = 0; break; } /* select median of 3 from 1/4, 1/2, 3/4 positions */ /* should use median of 5 or 9? */ m4 = (nmemb >> 2) * size; m = med3(ptr + m4, ptr + 2 * m4, ptr + 3 * m4, cmp, opaque); swap(ptr, m, size); /* move the pivot to the start or the array */ i = lt = 1; pi = plt = ptr + size; gt = nmemb; pj = pgt = top = ptr + nmemb * size; for (;;) { while (pi < pj && (c = cmp(ptr, pi, opaque)) >= 0) { if (c == 0) { swap(plt, pi, size); lt++; plt += size; } i++; pi += size; } while (pi < (pj -= size) && (c = cmp(ptr, pj, opaque)) <= 0) { if (c == 0) { gt--; pgt -= size; swap(pgt, pj, size); } } if (pi >= pj) break; swap(pi, pj, size); i++; pi += size; } /* array has 4 parts: * from 0 to lt excluded: elements identical to pivot * from lt to pi excluded: elements smaller than pivot * from pi to gt excluded: elements greater than pivot * from gt to n excluded: elements identical to pivot */ /* move elements identical to pivot in the middle of the array: */ /* swap values in ranges [0..lt[ and [i-lt..i[ swapping the smallest span between lt and i-lt is sufficient */ span = plt - ptr; span2 = pi - plt; lt = i - lt; if (span > span2) span = span2; swap_block(ptr, pi - span, span); /* swap values in ranges [gt..top[ and [i..top-(top-gt)[ swapping the smallest span between top-gt and gt-i is sufficient */ span = top - pgt; span2 = pgt - pi; pgt = top - span2; gt = nmemb - (gt - i); if (span > span2) span = span2; swap_block(pi, top - span, span); /* now array has 3 parts: * from 0 to lt excluded: elements smaller than pivot * from lt to gt excluded: elements identical to pivot * from gt to n excluded: elements greater than pivot */ /* stack the larger segment and keep processing the smaller one to minimize stack use for pathological distributions */ if (lt > nmemb - gt) { sp->base = ptr; sp->count = lt; sp->depth = depth; sp++; ptr = pgt; nmemb -= gt; } else { sp->base = pgt; sp->count = nmemb - gt; sp->depth = depth; sp++; nmemb = lt; } } /* Use insertion sort for small fragments */ for (pi = ptr + size, top = ptr + nmemb * size; pi < top; pi += size) { for (pj = pi; pj > ptr && cmp(pj - size, pj, opaque) > 0; pj -= size) swap(pj, pj - size, size); } } } #endif ================================================ FILE: cutils.h ================================================ /* * C utilities * * Copyright (c) 2017 Fabrice Bellard * Copyright (c) 2018 Charlie Gordon * * 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. */ #ifndef CUTILS_H #define CUTILS_H #include #include /* set if CPU is big endian */ #undef WORDS_BIGENDIAN #define likely(x) __builtin_expect(!!(x), 1) #define unlikely(x) __builtin_expect(!!(x), 0) #define force_inline inline __attribute__((always_inline)) #define no_inline __attribute__((noinline)) #define __maybe_unused __attribute__((unused)) #define xglue(x, y) x ## y #define glue(x, y) xglue(x, y) #define stringify(s) tostring(s) #define tostring(s) #s #ifndef offsetof #define offsetof(type, field) ((size_t) &((type *)0)->field) #endif #ifndef countof #define countof(x) (sizeof(x) / sizeof((x)[0])) #endif typedef int BOOL; #ifndef FALSE enum { FALSE = 0, TRUE = 1, }; #endif void pstrcpy(char *buf, int buf_size, const char *str); char *pstrcat(char *buf, int buf_size, const char *s); int strstart(const char *str, const char *val, const char **ptr); int has_suffix(const char *str, const char *suffix); static inline int max_int(int a, int b) { if (a > b) return a; else return b; } static inline int min_int(int a, int b) { if (a < b) return a; else return b; } static inline uint32_t max_uint32(uint32_t a, uint32_t b) { if (a > b) return a; else return b; } static inline uint32_t min_uint32(uint32_t a, uint32_t b) { if (a < b) return a; else return b; } static inline int64_t max_int64(int64_t a, int64_t b) { if (a > b) return a; else return b; } static inline int64_t min_int64(int64_t a, int64_t b) { if (a < b) return a; else return b; } /* WARNING: undefined if a = 0 */ static inline int clz32(unsigned int a) { return __builtin_clz(a); } /* WARNING: undefined if a = 0 */ static inline int clz64(uint64_t a) { return __builtin_clzll(a); } /* WARNING: undefined if a = 0 */ static inline int ctz32(unsigned int a) { return __builtin_ctz(a); } /* WARNING: undefined if a = 0 */ static inline int ctz64(uint64_t a) { return __builtin_ctzll(a); } struct __attribute__((packed)) packed_u64 { uint64_t v; }; struct __attribute__((packed)) packed_u32 { uint32_t v; }; struct __attribute__((packed)) packed_u16 { uint16_t v; }; static inline uint64_t get_u64(const uint8_t *tab) { return ((const struct packed_u64 *)tab)->v; } static inline int64_t get_i64(const uint8_t *tab) { return (int64_t)((const struct packed_u64 *)tab)->v; } static inline void put_u64(uint8_t *tab, uint64_t val) { ((struct packed_u64 *)tab)->v = val; } static inline uint32_t get_u32(const uint8_t *tab) { return ((const struct packed_u32 *)tab)->v; } static inline int32_t get_i32(const uint8_t *tab) { return (int32_t)((const struct packed_u32 *)tab)->v; } static inline void put_u32(uint8_t *tab, uint32_t val) { ((struct packed_u32 *)tab)->v = val; } static inline uint32_t get_u16(const uint8_t *tab) { return ((const struct packed_u16 *)tab)->v; } static inline int32_t get_i16(const uint8_t *tab) { return (int16_t)((const struct packed_u16 *)tab)->v; } static inline void put_u16(uint8_t *tab, uint16_t val) { ((struct packed_u16 *)tab)->v = val; } static inline uint32_t get_u8(const uint8_t *tab) { return *tab; } static inline int32_t get_i8(const uint8_t *tab) { return (int8_t)*tab; } static inline void put_u8(uint8_t *tab, uint8_t val) { *tab = val; } static inline uint16_t bswap16(uint16_t x) { return (x >> 8) | (x << 8); } static inline uint32_t bswap32(uint32_t v) { return ((v & 0xff000000) >> 24) | ((v & 0x00ff0000) >> 8) | ((v & 0x0000ff00) << 8) | ((v & 0x000000ff) << 24); } static inline uint64_t bswap64(uint64_t v) { return ((v & ((uint64_t)0xff << (7 * 8))) >> (7 * 8)) | ((v & ((uint64_t)0xff << (6 * 8))) >> (5 * 8)) | ((v & ((uint64_t)0xff << (5 * 8))) >> (3 * 8)) | ((v & ((uint64_t)0xff << (4 * 8))) >> (1 * 8)) | ((v & ((uint64_t)0xff << (3 * 8))) << (1 * 8)) | ((v & ((uint64_t)0xff << (2 * 8))) << (3 * 8)) | ((v & ((uint64_t)0xff << (1 * 8))) << (5 * 8)) | ((v & ((uint64_t)0xff << (0 * 8))) << (7 * 8)); } /* XXX: should take an extra argument to pass slack information to the caller */ typedef void *DynBufReallocFunc(void *opaque, void *ptr, size_t size); typedef struct DynBuf { uint8_t *buf; size_t size; size_t allocated_size; BOOL error; /* true if a memory allocation error occurred */ DynBufReallocFunc *realloc_func; void *opaque; /* for realloc_func */ } DynBuf; void dbuf_init(DynBuf *s); void dbuf_init2(DynBuf *s, void *opaque, DynBufReallocFunc *realloc_func); int dbuf_realloc(DynBuf *s, size_t new_size); int dbuf_write(DynBuf *s, size_t offset, const uint8_t *data, size_t len); int dbuf_put(DynBuf *s, const uint8_t *data, size_t len); int dbuf_put_self(DynBuf *s, size_t offset, size_t len); int dbuf_putc(DynBuf *s, uint8_t c); int dbuf_putstr(DynBuf *s, const char *str); static inline int dbuf_put_u16(DynBuf *s, uint16_t val) { return dbuf_put(s, (uint8_t *)&val, 2); } static inline int dbuf_put_u32(DynBuf *s, uint32_t val) { return dbuf_put(s, (uint8_t *)&val, 4); } static inline int dbuf_put_u64(DynBuf *s, uint64_t val) { return dbuf_put(s, (uint8_t *)&val, 8); } int __attribute__((format(printf, 2, 3))) dbuf_printf(DynBuf *s, const char *fmt, ...); void dbuf_free(DynBuf *s); static inline BOOL dbuf_error(DynBuf *s) { return s->error; } static inline void dbuf_set_error(DynBuf *s) { s->error = TRUE; } #define UTF8_CHAR_LEN_MAX 6 int unicode_to_utf8(uint8_t *buf, unsigned int c); int unicode_from_utf8(const uint8_t *p, int max_len, const uint8_t **pp); static inline int from_hex(int c) { if (c >= '0' && c <= '9') return c - '0'; else if (c >= 'A' && c <= 'F') return c - 'A' + 10; else if (c >= 'a' && c <= 'f') return c - 'a' + 10; else return -1; } void rqsort(void *base, size_t nmemb, size_t size, int (*cmp)(const void *, const void *, void *), void *arg); #endif /* CUTILS_H */ ================================================ FILE: examples/main.go ================================================ package main import ( "errors" "flag" "fmt" "github.com/lithdew/quickjs" "strings" ) func check(err error) { if err != nil { var evalErr *quickjs.Error if errors.As(err, &evalErr) { fmt.Println(evalErr.Cause) fmt.Println(evalErr.Stack) } panic(err) } } func main() { runtime := quickjs.NewRuntime() defer runtime.Free() context := runtime.NewContext() defer context.Free() globals := context.Globals() // Test evaluating template strings. result, err := context.Eval("`Hello world! 2 ** 8 = ${2 ** 8}.`") check(err) defer result.Free() fmt.Println(result.String()) fmt.Println() // Test evaluating numeric expressions. result, err = context.Eval(`1 + 2 * 100 - 3 + Math.sin(10)`) check(err) defer result.Free() fmt.Println(result.Int64()) fmt.Println() // Test evaluating big integer expressions. result, err = context.Eval(`128n ** 16n`) check(err) defer result.Free() fmt.Println(result.BigInt()) fmt.Println() // Test evaluating big decimal expressions. result, err = context.Eval(`128l ** 12l`) check(err) defer result.Free() fmt.Println(result.BigFloat()) fmt.Println() // Test evaluating boolean expressions. result, err = context.Eval(`false && true`) check(err) defer result.Free() fmt.Println(result.Bool()) fmt.Println() // Test setting and calling functions. A := func(ctx *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { fmt.Println("A got called!") return ctx.Null() } B := func(ctx *quickjs.Context, this quickjs.Value, args []quickjs.Value) quickjs.Value { fmt.Println("B got called!") return ctx.Null() } globals.Set("A", context.Function(A)) globals.Set("B", context.Function(B)) _, err = context.Eval(`for (let i = 0; i < 10; i++) { if (i % 2 === 0) A(); else B(); }`) check(err) fmt.Println() // Test setting global variables. _, err = context.Eval(`HELLO = "world"; TEST = false;`) check(err) names, err := globals.PropertyNames() check(err) fmt.Println("Globals:") for _, name := range names { val := globals.GetByAtom(name.Atom) defer val.Free() fmt.Printf("'%s': %s\n", name, val) } fmt.Println() // Test evaluating arbitrary expressions from flag arguments. flag.Parse() if flag.NArg() == 0 { return } result, err = context.Eval(strings.Join(flag.Args(), " ")) check(err) defer result.Free() if result.IsObject() { names, err := result.PropertyNames() check(err) fmt.Println("Object:") for _, name := range names { val := result.GetByAtom(name.Atom) defer val.Free() fmt.Printf("'%s': %s\n", name, val) } } else { fmt.Println(result.String()) } } ================================================ FILE: go.mod ================================================ module github.com/lithdew/quickjs go 1.14 require github.com/stretchr/testify v1.6.1 ================================================ FILE: go.sum ================================================ github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4= github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0= github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= ================================================ FILE: libbf.c ================================================ /* * Tiny arbitrary precision floating point library * * Copyright (c) 2017-2020 Fabrice Bellard * * 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. */ #include #include #include #include #include #include #ifdef __AVX2__ #include #endif #include "cutils.h" #include "libbf.h" /* enable it to check the multiplication result */ //#define USE_MUL_CHECK /* enable it to use FFT/NTT multiplication */ #define USE_FFT_MUL /* enable decimal floating point support */ #define USE_BF_DEC //#define inline __attribute__((always_inline)) #ifdef __AVX2__ #define FFT_MUL_THRESHOLD 100 /* in limbs of the smallest factor */ #else #define FFT_MUL_THRESHOLD 100 /* in limbs of the smallest factor */ #endif /* XXX: adjust */ #define DIVNORM_LARGE_THRESHOLD 50 #define UDIV1NORM_THRESHOLD 3 #if LIMB_BITS == 64 #define FMT_LIMB1 "%" PRIx64 #define FMT_LIMB "%016" PRIx64 #define PRId_LIMB PRId64 #define PRIu_LIMB PRIu64 #else #define FMT_LIMB1 "%x" #define FMT_LIMB "%08x" #define PRId_LIMB "d" #define PRIu_LIMB "u" #endif typedef intptr_t mp_size_t; typedef int bf_op2_func_t(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags); #ifdef USE_FFT_MUL #define FFT_MUL_R_OVERLAP_A (1 << 0) #define FFT_MUL_R_OVERLAP_B (1 << 1) #define FFT_MUL_R_NORESIZE (1 << 2) static no_inline int fft_mul(bf_context_t *s, bf_t *res, limb_t *a_tab, limb_t a_len, limb_t *b_tab, limb_t b_len, int mul_flags); static void fft_clear_cache(bf_context_t *s); #endif #ifdef USE_BF_DEC static limb_t get_digit(const limb_t *tab, limb_t len, slimb_t pos); #endif /* could leading zeros */ static inline int clz(limb_t a) { if (a == 0) { return LIMB_BITS; } else { #if LIMB_BITS == 64 return clz64(a); #else return clz32(a); #endif } } static inline int ctz(limb_t a) { if (a == 0) { return LIMB_BITS; } else { #if LIMB_BITS == 64 return ctz64(a); #else return ctz32(a); #endif } } static inline int ceil_log2(limb_t a) { if (a <= 1) return 0; else return LIMB_BITS - clz(a - 1); } /* b must be >= 1 */ static inline slimb_t ceil_div(slimb_t a, slimb_t b) { if (a >= 0) return (a + b - 1) / b; else return a / b; } /* b must be >= 1 */ static inline slimb_t floor_div(slimb_t a, slimb_t b) { if (a >= 0) { return a / b; } else { return (a - b + 1) / b; } } /* return r = a modulo b (0 <= r <= b - 1. b must be >= 1 */ static inline limb_t smod(slimb_t a, slimb_t b) { a = a % (slimb_t)b; if (a < 0) a += b; return a; } /* signed addition with saturation */ static inline slimb_t sat_add(slimb_t a, slimb_t b) { slimb_t r; r = a + b; /* overflow ? */ if (((a ^ r) & (b ^ r)) < 0) r = (a >> (LIMB_BITS - 1)) ^ (((limb_t)1 << (LIMB_BITS - 1)) - 1); return r; } #define malloc(s) malloc_is_forbidden(s) #define free(p) free_is_forbidden(p) #define realloc(p, s) realloc_is_forbidden(p, s) void bf_context_init(bf_context_t *s, bf_realloc_func_t *realloc_func, void *realloc_opaque) { memset(s, 0, sizeof(*s)); s->realloc_func = realloc_func; s->realloc_opaque = realloc_opaque; } void bf_context_end(bf_context_t *s) { bf_clear_cache(s); } void bf_init(bf_context_t *s, bf_t *r) { r->ctx = s; r->sign = 0; r->expn = BF_EXP_ZERO; r->len = 0; r->tab = NULL; } /* return 0 if OK, -1 if alloc error */ int bf_resize(bf_t *r, limb_t len) { limb_t *tab; if (len != r->len) { tab = bf_realloc(r->ctx, r->tab, len * sizeof(limb_t)); if (!tab && len != 0) return -1; r->tab = tab; r->len = len; } return 0; } /* return 0 or BF_ST_MEM_ERROR */ int bf_set_ui(bf_t *r, uint64_t a) { r->sign = 0; if (a == 0) { r->expn = BF_EXP_ZERO; bf_resize(r, 0); /* cannot fail */ } #if LIMB_BITS == 32 else if (a <= 0xffffffff) #else else #endif { int shift; if (bf_resize(r, 1)) goto fail; shift = clz(a); r->tab[0] = a << shift; r->expn = LIMB_BITS - shift; } #if LIMB_BITS == 32 else { uint32_t a1, a0; int shift; if (bf_resize(r, 2)) goto fail; a0 = a; a1 = a >> 32; shift = clz(a1); r->tab[0] = a0 << shift; r->tab[1] = (a1 << shift) | (a0 >> (LIMB_BITS - shift)); r->expn = 2 * LIMB_BITS - shift; } #endif return 0; fail: bf_set_nan(r); return BF_ST_MEM_ERROR; } /* return 0 or BF_ST_MEM_ERROR */ int bf_set_si(bf_t *r, int64_t a) { int ret; if (a < 0) { ret = bf_set_ui(r, -a); r->sign = 1; } else { ret = bf_set_ui(r, a); } return ret; } void bf_set_nan(bf_t *r) { bf_resize(r, 0); /* cannot fail */ r->expn = BF_EXP_NAN; r->sign = 0; } void bf_set_zero(bf_t *r, int is_neg) { bf_resize(r, 0); /* cannot fail */ r->expn = BF_EXP_ZERO; r->sign = is_neg; } void bf_set_inf(bf_t *r, int is_neg) { bf_resize(r, 0); /* cannot fail */ r->expn = BF_EXP_INF; r->sign = is_neg; } /* return 0 or BF_ST_MEM_ERROR */ int bf_set(bf_t *r, const bf_t *a) { if (r == a) return 0; if (bf_resize(r, a->len)) { bf_set_nan(r); return BF_ST_MEM_ERROR; } r->sign = a->sign; r->expn = a->expn; memcpy(r->tab, a->tab, a->len * sizeof(limb_t)); return 0; } /* equivalent to bf_set(r, a); bf_delete(a) */ void bf_move(bf_t *r, bf_t *a) { bf_context_t *s = r->ctx; if (r == a) return; bf_free(s, r->tab); *r = *a; } static limb_t get_limbz(const bf_t *a, limb_t idx) { if (idx >= a->len) return 0; else return a->tab[idx]; } /* get LIMB_BITS at bit position 'pos' in tab */ static inline limb_t get_bits(const limb_t *tab, limb_t len, slimb_t pos) { limb_t i, a0, a1; int p; i = pos >> LIMB_LOG2_BITS; p = pos & (LIMB_BITS - 1); if (i < len) a0 = tab[i]; else a0 = 0; if (p == 0) { return a0; } else { i++; if (i < len) a1 = tab[i]; else a1 = 0; return (a0 >> p) | (a1 << (LIMB_BITS - p)); } } static inline limb_t get_bit(const limb_t *tab, limb_t len, slimb_t pos) { slimb_t i; i = pos >> LIMB_LOG2_BITS; if (i < 0 || i >= len) return 0; return (tab[i] >> (pos & (LIMB_BITS - 1))) & 1; } static inline limb_t limb_mask(int start, int last) { limb_t v; int n; n = last - start + 1; if (n == LIMB_BITS) v = -1; else v = (((limb_t)1 << n) - 1) << start; return v; } static limb_t mp_scan_nz(const limb_t *tab, mp_size_t n) { mp_size_t i; for(i = 0; i < n; i++) { if (tab[i] != 0) return 1; } return 0; } /* return != 0 if one bit between 0 and bit_pos inclusive is not zero. */ static inline limb_t scan_bit_nz(const bf_t *r, slimb_t bit_pos) { slimb_t pos; limb_t v; pos = bit_pos >> LIMB_LOG2_BITS; if (pos < 0) return 0; v = r->tab[pos] & limb_mask(0, bit_pos & (LIMB_BITS - 1)); if (v != 0) return 1; pos--; while (pos >= 0) { if (r->tab[pos] != 0) return 1; pos--; } return 0; } /* return the addend for rounding. Note that prec can be <= 0 (for BF_FLAG_RADPNT_PREC) */ static int bf_get_rnd_add(int *pret, const bf_t *r, limb_t l, slimb_t prec, int rnd_mode) { int add_one, inexact; limb_t bit1, bit0; if (rnd_mode == BF_RNDF) { bit0 = 1; /* faithful rounding does not honor the INEXACT flag */ } else { /* starting limb for bit 'prec + 1' */ bit0 = scan_bit_nz(r, l * LIMB_BITS - 1 - bf_max(0, prec + 1)); } /* get the bit at 'prec' */ bit1 = get_bit(r->tab, l, l * LIMB_BITS - 1 - prec); inexact = (bit1 | bit0) != 0; add_one = 0; switch(rnd_mode) { case BF_RNDZ: break; case BF_RNDN: if (bit1) { if (bit0) { add_one = 1; } else { /* round to even */ add_one = get_bit(r->tab, l, l * LIMB_BITS - 1 - (prec - 1)); } } break; case BF_RNDD: case BF_RNDU: if (r->sign == (rnd_mode == BF_RNDD)) add_one = inexact; break; case BF_RNDA: add_one = inexact; break; case BF_RNDNA: case BF_RNDF: add_one = bit1; break; default: abort(); } if (inexact) *pret |= BF_ST_INEXACT; return add_one; } static int bf_set_overflow(bf_t *r, int sign, limb_t prec, bf_flags_t flags) { slimb_t i, l, e_max; int rnd_mode; rnd_mode = flags & BF_RND_MASK; if (prec == BF_PREC_INF || rnd_mode == BF_RNDN || rnd_mode == BF_RNDNA || rnd_mode == BF_RNDA || (rnd_mode == BF_RNDD && sign == 1) || (rnd_mode == BF_RNDU && sign == 0)) { bf_set_inf(r, sign); } else { /* set to maximum finite number */ l = (prec + LIMB_BITS - 1) / LIMB_BITS; if (bf_resize(r, l)) { bf_set_nan(r); return BF_ST_MEM_ERROR; } r->tab[0] = limb_mask((-prec) & (LIMB_BITS - 1), LIMB_BITS - 1); for(i = 1; i < l; i++) r->tab[i] = (limb_t)-1; e_max = (limb_t)1 << (bf_get_exp_bits(flags) - 1); r->expn = e_max; r->sign = sign; } return BF_ST_OVERFLOW | BF_ST_INEXACT; } /* round to prec1 bits assuming 'r' is non zero and finite. 'r' is assumed to have length 'l' (1 <= l <= r->len). Note: 'prec1' can be infinite (BF_PREC_INF). 'ret' is 0 or BF_ST_INEXACT if the result is known to be inexact. Can fail with BF_ST_MEM_ERROR in case of overflow not returning infinity. */ static int __bf_round(bf_t *r, limb_t prec1, bf_flags_t flags, limb_t l, int ret) { limb_t v, a; int shift, add_one, rnd_mode; slimb_t i, bit_pos, pos, e_min, e_max, e_range, prec; /* e_min and e_max are computed to match the IEEE 754 conventions */ e_range = (limb_t)1 << (bf_get_exp_bits(flags) - 1); e_min = -e_range + 3; e_max = e_range; if (flags & BF_FLAG_RADPNT_PREC) { /* 'prec' is the precision after the radix point */ if (prec1 != BF_PREC_INF) prec = r->expn + prec1; else prec = prec1; } else if (unlikely(r->expn < e_min) && (flags & BF_FLAG_SUBNORMAL)) { /* restrict the precision in case of potentially subnormal result */ assert(prec1 != BF_PREC_INF); prec = prec1 - (e_min - r->expn); } else { prec = prec1; } /* round to prec bits */ rnd_mode = flags & BF_RND_MASK; add_one = bf_get_rnd_add(&ret, r, l, prec, rnd_mode); if (prec <= 0) { if (add_one) { bf_resize(r, 1); /* cannot fail */ r->tab[0] = (limb_t)1 << (LIMB_BITS - 1); r->expn += 1 - prec; ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT; return ret; } else { goto underflow; } } else if (add_one) { limb_t carry; /* add one starting at digit 'prec - 1' */ bit_pos = l * LIMB_BITS - 1 - (prec - 1); pos = bit_pos >> LIMB_LOG2_BITS; carry = (limb_t)1 << (bit_pos & (LIMB_BITS - 1)); for(i = pos; i < l; i++) { v = r->tab[i] + carry; carry = (v < carry); r->tab[i] = v; if (carry == 0) break; } if (carry) { /* shift right by one digit */ v = 1; for(i = l - 1; i >= pos; i--) { a = r->tab[i]; r->tab[i] = (a >> 1) | (v << (LIMB_BITS - 1)); v = a; } r->expn++; } } /* check underflow */ if (unlikely(r->expn < e_min)) { if (flags & BF_FLAG_SUBNORMAL) { /* if inexact, also set the underflow flag */ if (ret & BF_ST_INEXACT) ret |= BF_ST_UNDERFLOW; } else { underflow: ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT; bf_set_zero(r, r->sign); return ret; } } /* check overflow */ if (unlikely(r->expn > e_max)) return bf_set_overflow(r, r->sign, prec1, flags); /* keep the bits starting at 'prec - 1' */ bit_pos = l * LIMB_BITS - 1 - (prec - 1); i = bit_pos >> LIMB_LOG2_BITS; if (i >= 0) { shift = bit_pos & (LIMB_BITS - 1); if (shift != 0) r->tab[i] &= limb_mask(shift, LIMB_BITS - 1); } else { i = 0; } /* remove trailing zeros */ while (r->tab[i] == 0) i++; if (i > 0) { l -= i; memmove(r->tab, r->tab + i, l * sizeof(limb_t)); } bf_resize(r, l); /* cannot fail */ return ret; } /* 'r' must be a finite number. */ int bf_normalize_and_round(bf_t *r, limb_t prec1, bf_flags_t flags) { limb_t l, v, a; int shift, ret; slimb_t i; // bf_print_str("bf_renorm", r); l = r->len; while (l > 0 && r->tab[l - 1] == 0) l--; if (l == 0) { /* zero */ r->expn = BF_EXP_ZERO; bf_resize(r, 0); /* cannot fail */ ret = 0; } else { r->expn -= (r->len - l) * LIMB_BITS; /* shift to have the MSB set to '1' */ v = r->tab[l - 1]; shift = clz(v); if (shift != 0) { v = 0; for(i = 0; i < l; i++) { a = r->tab[i]; r->tab[i] = (a << shift) | (v >> (LIMB_BITS - shift)); v = a; } r->expn -= shift; } ret = __bf_round(r, prec1, flags, l, 0); } // bf_print_str("r_final", r); return ret; } /* return true if rounding can be done at precision 'prec' assuming the exact result r is such that |r-a| <= 2^(EXP(a)-k). */ /* XXX: check the case where the exponent would be incremented by the rounding */ int bf_can_round(const bf_t *a, slimb_t prec, bf_rnd_t rnd_mode, slimb_t k) { BOOL is_rndn; slimb_t bit_pos, n; limb_t bit; if (a->expn == BF_EXP_INF || a->expn == BF_EXP_NAN) return FALSE; if (rnd_mode == BF_RNDF) { return (k >= (prec + 1)); } if (a->expn == BF_EXP_ZERO) return FALSE; is_rndn = (rnd_mode == BF_RNDN || rnd_mode == BF_RNDNA); if (k < (prec + 2)) return FALSE; bit_pos = a->len * LIMB_BITS - 1 - prec; n = k - prec; /* bit pattern for RNDN or RNDNA: 0111.. or 1000... for other rounding modes: 000... or 111... */ bit = get_bit(a->tab, a->len, bit_pos); bit_pos--; n--; bit ^= is_rndn; /* XXX: slow, but a few iterations on average */ while (n != 0) { if (get_bit(a->tab, a->len, bit_pos) != bit) return TRUE; bit_pos--; n--; } return FALSE; } /* Cannot fail with BF_ST_MEM_ERROR. */ int bf_round(bf_t *r, limb_t prec, bf_flags_t flags) { if (r->len == 0) return 0; return __bf_round(r, prec, flags, r->len, 0); } /* for debugging */ static __maybe_unused void dump_limbs(const char *str, const limb_t *tab, limb_t n) { limb_t i; printf("%s: len=%" PRId_LIMB "\n", str, n); for(i = 0; i < n; i++) { printf("%" PRId_LIMB ": " FMT_LIMB "\n", i, tab[i]); } } void mp_print_str(const char *str, const limb_t *tab, limb_t n) { slimb_t i; printf("%s= 0x", str); for(i = n - 1; i >= 0; i--) { if (i != (n - 1)) printf("_"); printf(FMT_LIMB, tab[i]); } printf("\n"); } static __maybe_unused void mp_print_str_h(const char *str, const limb_t *tab, limb_t n, limb_t high) { slimb_t i; printf("%s= 0x", str); printf(FMT_LIMB, high); for(i = n - 1; i >= 0; i--) { printf("_"); printf(FMT_LIMB, tab[i]); } printf("\n"); } /* for debugging */ void bf_print_str(const char *str, const bf_t *a) { slimb_t i; printf("%s=", str); if (a->expn == BF_EXP_NAN) { printf("NaN"); } else { if (a->sign) putchar('-'); if (a->expn == BF_EXP_ZERO) { putchar('0'); } else if (a->expn == BF_EXP_INF) { printf("Inf"); } else { printf("0x0."); for(i = a->len - 1; i >= 0; i--) printf(FMT_LIMB, a->tab[i]); printf("p%" PRId_LIMB, a->expn); } } printf("\n"); } /* compare the absolute value of 'a' and 'b'. Return < 0 if a < b, 0 if a = b and > 0 otherwise. */ int bf_cmpu(const bf_t *a, const bf_t *b) { slimb_t i; limb_t len, v1, v2; if (a->expn != b->expn) { if (a->expn < b->expn) return -1; else return 1; } len = bf_max(a->len, b->len); for(i = len - 1; i >= 0; i--) { v1 = get_limbz(a, a->len - len + i); v2 = get_limbz(b, b->len - len + i); if (v1 != v2) { if (v1 < v2) return -1; else return 1; } } return 0; } /* Full order: -0 < 0, NaN == NaN and NaN is larger than all other numbers */ int bf_cmp_full(const bf_t *a, const bf_t *b) { int res; if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { if (a->expn == b->expn) res = 0; else if (a->expn == BF_EXP_NAN) res = 1; else res = -1; } else if (a->sign != b->sign) { res = 1 - 2 * a->sign; } else { res = bf_cmpu(a, b); if (a->sign) res = -res; } return res; } /* Standard floating point comparison: return 2 if one of the operands is NaN (unordered) or -1, 0, 1 depending on the ordering assuming -0 == +0 */ int bf_cmp(const bf_t *a, const bf_t *b) { int res; if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { res = 2; } else if (a->sign != b->sign) { if (a->expn == BF_EXP_ZERO && b->expn == BF_EXP_ZERO) res = 0; else res = 1 - 2 * a->sign; } else { res = bf_cmpu(a, b); if (a->sign) res = -res; } return res; } /* Compute the number of bits 'n' matching the pattern: a= X1000..0 b= X0111..1 When computing a-b, the result will have at least n leading zero bits. Precondition: a > b and a.expn - b.expn = 0 or 1 */ static limb_t count_cancelled_bits(const bf_t *a, const bf_t *b) { slimb_t bit_offset, b_offset, n; int p, p1; limb_t v1, v2, mask; bit_offset = a->len * LIMB_BITS - 1; b_offset = (b->len - a->len) * LIMB_BITS - (LIMB_BITS - 1) + a->expn - b->expn; n = 0; /* first search the equals bits */ for(;;) { v1 = get_limbz(a, bit_offset >> LIMB_LOG2_BITS); v2 = get_bits(b->tab, b->len, bit_offset + b_offset); // printf("v1=" FMT_LIMB " v2=" FMT_LIMB "\n", v1, v2); if (v1 != v2) break; n += LIMB_BITS; bit_offset -= LIMB_BITS; } /* find the position of the first different bit */ p = clz(v1 ^ v2) + 1; n += p; /* then search for '0' in a and '1' in b */ p = LIMB_BITS - p; if (p > 0) { /* search in the trailing p bits of v1 and v2 */ mask = limb_mask(0, p - 1); p1 = bf_min(clz(v1 & mask), clz((~v2) & mask)) - (LIMB_BITS - p); n += p1; if (p1 != p) goto done; } bit_offset -= LIMB_BITS; for(;;) { v1 = get_limbz(a, bit_offset >> LIMB_LOG2_BITS); v2 = get_bits(b->tab, b->len, bit_offset + b_offset); // printf("v1=" FMT_LIMB " v2=" FMT_LIMB "\n", v1, v2); if (v1 != 0 || v2 != -1) { /* different: count the matching bits */ p1 = bf_min(clz(v1), clz(~v2)); n += p1; break; } n += LIMB_BITS; bit_offset -= LIMB_BITS; } done: return n; } static int bf_add_internal(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags, int b_neg) { const bf_t *tmp; int is_sub, ret, cmp_res, a_sign, b_sign; a_sign = a->sign; b_sign = b->sign ^ b_neg; is_sub = a_sign ^ b_sign; cmp_res = bf_cmpu(a, b); if (cmp_res < 0) { tmp = a; a = b; b = tmp; a_sign = b_sign; /* b_sign is never used later */ } /* abs(a) >= abs(b) */ if (cmp_res == 0 && is_sub && a->expn < BF_EXP_INF) { /* zero result */ bf_set_zero(r, (flags & BF_RND_MASK) == BF_RNDD); ret = 0; } else if (a->len == 0 || b->len == 0) { ret = 0; if (a->expn >= BF_EXP_INF) { if (a->expn == BF_EXP_NAN) { /* at least one operand is NaN */ bf_set_nan(r); } else if (b->expn == BF_EXP_INF && is_sub) { /* infinities with different signs */ bf_set_nan(r); ret = BF_ST_INVALID_OP; } else { bf_set_inf(r, a_sign); } } else { /* at least one zero and not subtract */ bf_set(r, a); r->sign = a_sign; goto renorm; } } else { slimb_t d, a_offset, b_bit_offset, i, cancelled_bits; limb_t carry, v1, v2, u, r_len, carry1, precl, tot_len, z, sub_mask; r->sign = a_sign; r->expn = a->expn; d = a->expn - b->expn; /* must add more precision for the leading cancelled bits in subtraction */ if (is_sub) { if (d <= 1) cancelled_bits = count_cancelled_bits(a, b); else cancelled_bits = 1; } else { cancelled_bits = 0; } /* add two extra bits for rounding */ precl = (cancelled_bits + prec + 2 + LIMB_BITS - 1) / LIMB_BITS; tot_len = bf_max(a->len, b->len + (d + LIMB_BITS - 1) / LIMB_BITS); r_len = bf_min(precl, tot_len); if (bf_resize(r, r_len)) goto fail; a_offset = a->len - r_len; b_bit_offset = (b->len - r_len) * LIMB_BITS + d; /* compute the bits before for the rounding */ carry = is_sub; z = 0; sub_mask = -is_sub; i = r_len - tot_len; while (i < 0) { slimb_t ap, bp; BOOL inflag; ap = a_offset + i; bp = b_bit_offset + i * LIMB_BITS; inflag = FALSE; if (ap >= 0 && ap < a->len) { v1 = a->tab[ap]; inflag = TRUE; } else { v1 = 0; } if (bp + LIMB_BITS > 0 && bp < (slimb_t)(b->len * LIMB_BITS)) { v2 = get_bits(b->tab, b->len, bp); inflag = TRUE; } else { v2 = 0; } if (!inflag) { /* outside 'a' and 'b': go directly to the next value inside a or b so that the running time does not depend on the exponent difference */ i = 0; if (ap < 0) i = bf_min(i, -a_offset); /* b_bit_offset + i * LIMB_BITS + LIMB_BITS >= 1 equivalent to i >= ceil(-b_bit_offset + 1 - LIMB_BITS) / LIMB_BITS) */ if (bp + LIMB_BITS <= 0) i = bf_min(i, (-b_bit_offset) >> LIMB_LOG2_BITS); } else { i++; } v2 ^= sub_mask; u = v1 + v2; carry1 = u < v1; u += carry; carry = (u < carry) | carry1; z |= u; } /* and the result */ for(i = 0; i < r_len; i++) { v1 = get_limbz(a, a_offset + i); v2 = get_bits(b->tab, b->len, b_bit_offset + i * LIMB_BITS); v2 ^= sub_mask; u = v1 + v2; carry1 = u < v1; u += carry; carry = (u < carry) | carry1; r->tab[i] = u; } /* set the extra bits for the rounding */ r->tab[0] |= (z != 0); /* carry is only possible in add case */ if (!is_sub && carry) { if (bf_resize(r, r_len + 1)) goto fail; r->tab[r_len] = 1; r->expn += LIMB_BITS; } renorm: ret = bf_normalize_and_round(r, prec, flags); } return ret; fail: bf_set_nan(r); return BF_ST_MEM_ERROR; } static int __bf_add(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags) { return bf_add_internal(r, a, b, prec, flags, 0); } static int __bf_sub(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags) { return bf_add_internal(r, a, b, prec, flags, 1); } limb_t mp_add(limb_t *res, const limb_t *op1, const limb_t *op2, limb_t n, limb_t carry) { slimb_t i; limb_t k, a, v, k1; k = carry; for(i=0;i v; v = a - k; k = (v > a) | k1; res[i] = v; } return k; } /* compute 0 - op2 */ static limb_t mp_neg(limb_t *res, const limb_t *op2, mp_size_t n, limb_t carry) { int i; limb_t k, a, v, k1; k = carry; for(i=0;i v; v = a - k; k = (v > a) | k1; res[i] = v; } return k; } limb_t mp_sub_ui(limb_t *tab, limb_t b, mp_size_t n) { mp_size_t i; limb_t k, a, v; k=b; for(i=0;i v; tab[i] = a; if (k == 0) break; } return k; } /* r = (a + high*B^n) >> shift. Return the remainder r (0 <= r < 2^shift). 1 <= shift <= LIMB_BITS - 1 */ static limb_t mp_shr(limb_t *tab_r, const limb_t *tab, mp_size_t n, int shift, limb_t high) { mp_size_t i; limb_t l, a; assert(shift >= 1 && shift < LIMB_BITS); l = high; for(i = n - 1; i >= 0; i--) { a = tab[i]; tab_r[i] = (a >> shift) | (l << (LIMB_BITS - shift)); l = a; } return l & (((limb_t)1 << shift) - 1); } /* tabr[] = taba[] * b + l. Return the high carry */ static limb_t mp_mul1(limb_t *tabr, const limb_t *taba, limb_t n, limb_t b, limb_t l) { limb_t i; dlimb_t t; for(i = 0; i < n; i++) { t = (dlimb_t)taba[i] * (dlimb_t)b + l; tabr[i] = t; l = t >> LIMB_BITS; } return l; } /* tabr[] += taba[] * b, return the high word. */ static limb_t mp_add_mul1(limb_t *tabr, const limb_t *taba, limb_t n, limb_t b) { limb_t i, l; dlimb_t t; l = 0; for(i = 0; i < n; i++) { t = (dlimb_t)taba[i] * (dlimb_t)b + l + tabr[i]; tabr[i] = t; l = t >> LIMB_BITS; } return l; } /* size of the result : op1_size + op2_size. */ static void mp_mul_basecase(limb_t *result, const limb_t *op1, limb_t op1_size, const limb_t *op2, limb_t op2_size) { limb_t i, r; result[op1_size] = mp_mul1(result, op1, op1_size, op2[0], 0); for(i=1;i= FFT_MUL_THRESHOLD)) { bf_t r_s, *r = &r_s; r->tab = result; /* XXX: optimize memory usage in API */ if (fft_mul(s, r, (limb_t *)op1, op1_size, (limb_t *)op2, op2_size, FFT_MUL_R_NORESIZE)) return -1; } else #endif { mp_mul_basecase(result, op1, op1_size, op2, op2_size); } return 0; } /* tabr[] -= taba[] * b. Return the value to substract to the high word. */ static limb_t mp_sub_mul1(limb_t *tabr, const limb_t *taba, limb_t n, limb_t b) { limb_t i, l; dlimb_t t; l = 0; for(i = 0; i < n; i++) { t = tabr[i] - (dlimb_t)taba[i] * (dlimb_t)b - l; tabr[i] = t; l = -(t >> LIMB_BITS); } return l; } /* WARNING: d must be >= 2^(LIMB_BITS-1) */ static inline limb_t udiv1norm_init(limb_t d) { limb_t a0, a1; a1 = -d - 1; a0 = -1; return (((dlimb_t)a1 << LIMB_BITS) | a0) / d; } /* return the quotient and the remainder in '*pr'of 'a1*2^LIMB_BITS+a0 / d' with 0 <= a1 < d. */ static inline limb_t udiv1norm(limb_t *pr, limb_t a1, limb_t a0, limb_t d, limb_t d_inv) { limb_t n1m, n_adj, q, r, ah; dlimb_t a; n1m = ((slimb_t)a0 >> (LIMB_BITS - 1)); n_adj = a0 + (n1m & d); a = (dlimb_t)d_inv * (a1 - n1m) + n_adj; q = (a >> LIMB_BITS) + a1; /* compute a - q * r and update q so that the remainder is\ between 0 and d - 1 */ a = ((dlimb_t)a1 << LIMB_BITS) | a0; a = a - (dlimb_t)q * d - d; ah = a >> LIMB_BITS; q += 1 + ah; r = (limb_t)a + (ah & d); *pr = r; return q; } /* b must be >= 1 << (LIMB_BITS - 1) */ static limb_t mp_div1norm(limb_t *tabr, const limb_t *taba, limb_t n, limb_t b, limb_t r) { slimb_t i; if (n >= UDIV1NORM_THRESHOLD) { limb_t b_inv; b_inv = udiv1norm_init(b); for(i = n - 1; i >= 0; i--) { tabr[i] = udiv1norm(&r, r, taba[i], b, b_inv); } } else { dlimb_t a1; for(i = n - 1; i >= 0; i--) { a1 = ((dlimb_t)r << LIMB_BITS) | taba[i]; tabr[i] = a1 / b; r = a1 % b; } } return r; } static int mp_divnorm_large(bf_context_t *s, limb_t *tabq, limb_t *taba, limb_t na, const limb_t *tabb, limb_t nb); /* base case division: divides taba[0..na-1] by tabb[0..nb-1]. tabb[nb - 1] must be >= 1 << (LIMB_BITS - 1). na - nb must be >= 0. 'taba' is modified and contains the remainder (nb limbs). tabq[0..na-nb] contains the quotient with tabq[na - nb] <= 1. */ static int mp_divnorm(bf_context_t *s, limb_t *tabq, limb_t *taba, limb_t na, const limb_t *tabb, limb_t nb) { limb_t r, a, c, q, v, b1, b1_inv, n, dummy_r; slimb_t i, j; b1 = tabb[nb - 1]; if (nb == 1) { taba[0] = mp_div1norm(tabq, taba, na, b1, 0); return 0; } n = na - nb; if (bf_min(n, nb) >= DIVNORM_LARGE_THRESHOLD) { return mp_divnorm_large(s, tabq, taba, na, tabb, nb); } if (n >= UDIV1NORM_THRESHOLD) b1_inv = udiv1norm_init(b1); else b1_inv = 0; /* first iteration: the quotient is only 0 or 1 */ q = 1; for(j = nb - 1; j >= 0; j--) { if (taba[n + j] != tabb[j]) { if (taba[n + j] < tabb[j]) q = 0; break; } } tabq[n] = q; if (q) { mp_sub(taba + n, taba + n, tabb, nb, 0); } for(i = n - 1; i >= 0; i--) { if (unlikely(taba[i + nb] >= b1)) { q = -1; } else if (b1_inv) { q = udiv1norm(&dummy_r, taba[i + nb], taba[i + nb - 1], b1, b1_inv); } else { dlimb_t al; al = ((dlimb_t)taba[i + nb] << LIMB_BITS) | taba[i + nb - 1]; q = al / b1; r = al % b1; } r = mp_sub_mul1(taba + i, tabb, nb, q); v = taba[i + nb]; a = v - r; c = (a > v); taba[i + nb] = a; if (c != 0) { /* negative result */ for(;;) { q--; c = mp_add(taba + i, taba + i, tabb, nb, 0); /* propagate carry and test if positive result */ if (c != 0) { if (++taba[i + nb] == 0) { break; } } } } tabq[i] = q; } return 0; } /* compute r=B^(2*n)/a such as a*r < B^(2*n) < a*r + 2 with n >= 1. 'a' has n limbs with a[n-1] >= B/2 and 'r' has n+1 limbs with r[n] = 1. See Modern Computer Arithmetic by Richard P. Brent and Paul Zimmermann, algorithm 3.5 */ int mp_recip(bf_context_t *s, limb_t *tabr, const limb_t *taba, limb_t n) { mp_size_t l, h, k, i; limb_t *tabxh, *tabt, c, *tabu; if (n <= 2) { /* return ceil(B^(2*n)/a) - 1 */ /* XXX: could avoid allocation */ tabu = bf_malloc(s, sizeof(limb_t) * (2 * n + 1)); tabt = bf_malloc(s, sizeof(limb_t) * (n + 2)); if (!tabt || !tabu) goto fail; for(i = 0; i < 2 * n; i++) tabu[i] = 0; tabu[2 * n] = 1; if (mp_divnorm(s, tabt, tabu, 2 * n + 1, taba, n)) goto fail; for(i = 0; i < n + 1; i++) tabr[i] = tabt[i]; if (mp_scan_nz(tabu, n) == 0) { /* only happens for a=B^n/2 */ mp_sub_ui(tabr, 1, n + 1); } } else { l = (n - 1) / 2; h = n - l; /* n=2p -> l=p-1, h = p + 1, k = p + 3 n=2p+1-> l=p, h = p + 1; k = p + 2 */ tabt = bf_malloc(s, sizeof(limb_t) * (n + h + 1)); tabu = bf_malloc(s, sizeof(limb_t) * (n + 2 * h - l + 2)); if (!tabt || !tabu) goto fail; tabxh = tabr + l; if (mp_recip(s, tabxh, taba + l, h)) goto fail; if (mp_mul(s, tabt, taba, n, tabxh, h + 1)) /* n + h + 1 limbs */ goto fail; while (tabt[n + h] != 0) { mp_sub_ui(tabxh, 1, h + 1); c = mp_sub(tabt, tabt, taba, n, 0); mp_sub_ui(tabt + n, c, h + 1); } /* T = B^(n+h) - T */ mp_neg(tabt, tabt, n + h + 1, 0); tabt[n + h]++; if (mp_mul(s, tabu, tabt + l, n + h + 1 - l, tabxh, h + 1)) goto fail; /* n + 2*h - l + 2 limbs */ k = 2 * h - l; for(i = 0; i < l; i++) tabr[i] = tabu[i + k]; mp_add(tabr + l, tabr + l, tabu + 2 * h, h, 0); } bf_free(s, tabt); bf_free(s, tabu); return 0; fail: bf_free(s, tabt); bf_free(s, tabu); return -1; } /* return -1, 0 or 1 */ static int mp_cmp(const limb_t *taba, const limb_t *tabb, mp_size_t n) { mp_size_t i; for(i = n - 1; i >= 0; i--) { if (taba[i] != tabb[i]) { if (taba[i] < tabb[i]) return -1; else return 1; } } return 0; } //#define DEBUG_DIVNORM_LARGE //#define DEBUG_DIVNORM_LARGE2 /* subquadratic divnorm */ static int mp_divnorm_large(bf_context_t *s, limb_t *tabq, limb_t *taba, limb_t na, const limb_t *tabb, limb_t nb) { limb_t *tabb_inv, nq, *tabt, i, n; nq = na - nb; #ifdef DEBUG_DIVNORM_LARGE printf("na=%d nb=%d nq=%d\n", (int)na, (int)nb, (int)nq); mp_print_str("a", taba, na); mp_print_str("b", tabb, nb); #endif assert(nq >= 1); n = nq; if (nq < nb) n++; tabb_inv = bf_malloc(s, sizeof(limb_t) * (n + 1)); tabt = bf_malloc(s, sizeof(limb_t) * 2 * (n + 1)); if (!tabb_inv || !tabt) goto fail; if (n >= nb) { for(i = 0; i < n - nb; i++) tabt[i] = 0; for(i = 0; i < nb; i++) tabt[i + n - nb] = tabb[i]; } else { /* truncate B: need to increment it so that the approximate inverse is smaller that the exact inverse */ for(i = 0; i < n; i++) tabt[i] = tabb[i + nb - n]; if (mp_add_ui(tabt, 1, n)) { /* tabt = B^n : tabb_inv = B^n */ memset(tabb_inv, 0, n * sizeof(limb_t)); tabb_inv[n] = 1; goto recip_done; } } if (mp_recip(s, tabb_inv, tabt, n)) goto fail; recip_done: /* Q=A*B^-1 */ if (mp_mul(s, tabt, tabb_inv, n + 1, taba + na - (n + 1), n + 1)) goto fail; for(i = 0; i < nq + 1; i++) tabq[i] = tabt[i + 2 * (n + 1) - (nq + 1)]; #ifdef DEBUG_DIVNORM_LARGE mp_print_str("q", tabq, nq + 1); #endif bf_free(s, tabt); bf_free(s, tabb_inv); tabb_inv = NULL; /* R=A-B*Q */ tabt = bf_malloc(s, sizeof(limb_t) * (na + 1)); if (!tabt) goto fail; if (mp_mul(s, tabt, tabq, nq + 1, tabb, nb)) goto fail; /* we add one more limb for the result */ mp_sub(taba, taba, tabt, nb + 1, 0); bf_free(s, tabt); /* the approximated quotient is smaller than than the exact one, hence we may have to increment it */ #ifdef DEBUG_DIVNORM_LARGE2 int cnt = 0; static int cnt_max; #endif for(;;) { if (taba[nb] == 0 && mp_cmp(taba, tabb, nb) < 0) break; taba[nb] -= mp_sub(taba, taba, tabb, nb, 0); mp_add_ui(tabq, 1, nq + 1); #ifdef DEBUG_DIVNORM_LARGE2 cnt++; #endif } #ifdef DEBUG_DIVNORM_LARGE2 if (cnt > cnt_max) { cnt_max = cnt; printf("\ncnt=%d nq=%d nb=%d\n", cnt_max, (int)nq, (int)nb); } #endif return 0; fail: bf_free(s, tabb_inv); bf_free(s, tabt); return -1; } int bf_mul(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags) { int ret, r_sign; if (a->len < b->len) { const bf_t *tmp = a; a = b; b = tmp; } r_sign = a->sign ^ b->sign; /* here b->len <= a->len */ if (b->len == 0) { if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { bf_set_nan(r); ret = 0; } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_INF) { if ((a->expn == BF_EXP_INF && b->expn == BF_EXP_ZERO) || (a->expn == BF_EXP_ZERO && b->expn == BF_EXP_INF)) { bf_set_nan(r); ret = BF_ST_INVALID_OP; } else { bf_set_inf(r, r_sign); ret = 0; } } else { bf_set_zero(r, r_sign); ret = 0; } } else { bf_t tmp, *r1 = NULL; limb_t a_len, b_len, precl; limb_t *a_tab, *b_tab; a_len = a->len; b_len = b->len; if ((flags & BF_RND_MASK) == BF_RNDF) { /* faithful rounding does not require using the full inputs */ precl = (prec + 2 + LIMB_BITS - 1) / LIMB_BITS; a_len = bf_min(a_len, precl); b_len = bf_min(b_len, precl); } a_tab = a->tab + a->len - a_len; b_tab = b->tab + b->len - b_len; #ifdef USE_FFT_MUL if (b_len >= FFT_MUL_THRESHOLD) { int mul_flags = 0; if (r == a) mul_flags |= FFT_MUL_R_OVERLAP_A; if (r == b) mul_flags |= FFT_MUL_R_OVERLAP_B; if (fft_mul(r->ctx, r, a_tab, a_len, b_tab, b_len, mul_flags)) goto fail; } else #endif { if (r == a || r == b) { bf_init(r->ctx, &tmp); r1 = r; r = &tmp; } if (bf_resize(r, a_len + b_len)) { fail: bf_set_nan(r); ret = BF_ST_MEM_ERROR; goto done; } mp_mul_basecase(r->tab, a_tab, a_len, b_tab, b_len); } r->sign = r_sign; r->expn = a->expn + b->expn; ret = bf_normalize_and_round(r, prec, flags); done: if (r == &tmp) bf_move(r1, &tmp); } return ret; } /* multiply 'r' by 2^e */ int bf_mul_2exp(bf_t *r, slimb_t e, limb_t prec, bf_flags_t flags) { slimb_t e_max; if (r->len == 0) return 0; e_max = ((limb_t)1 << BF_EXT_EXP_BITS_MAX) - 1; e = bf_max(e, -e_max); e = bf_min(e, e_max); r->expn += e; return __bf_round(r, prec, flags, r->len, 0); } /* Return e such as a=m*2^e with m odd integer. return 0 if a is zero, Infinite or Nan. */ slimb_t bf_get_exp_min(const bf_t *a) { slimb_t i; limb_t v; int k; for(i = 0; i < a->len; i++) { v = a->tab[i]; if (v != 0) { k = ctz(v); return a->expn - (a->len - i) * LIMB_BITS + k; } } return 0; } /* a and b must be finite numbers with a >= 0 and b > 0. 'q' is the integer defined as floor(a/b) and r = a - q * b. */ static void bf_tdivremu(bf_t *q, bf_t *r, const bf_t *a, const bf_t *b) { if (bf_cmpu(a, b) < 0) { bf_set_ui(q, 0); bf_set(r, a); } else { bf_div(q, a, b, bf_max(a->expn - b->expn + 1, 2), BF_RNDZ); bf_rint(q, BF_RNDZ); bf_mul(r, q, b, BF_PREC_INF, BF_RNDZ); bf_sub(r, a, r, BF_PREC_INF, BF_RNDZ); } } static int __bf_div(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags) { bf_context_t *s = r->ctx; int ret, r_sign; limb_t n, nb, precl; r_sign = a->sign ^ b->sign; if (a->expn >= BF_EXP_INF || b->expn >= BF_EXP_INF) { if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { bf_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF && b->expn == BF_EXP_INF) { bf_set_nan(r); return BF_ST_INVALID_OP; } else if (a->expn == BF_EXP_INF) { bf_set_inf(r, r_sign); return 0; } else { bf_set_zero(r, r_sign); return 0; } } else if (a->expn == BF_EXP_ZERO) { if (b->expn == BF_EXP_ZERO) { bf_set_nan(r); return BF_ST_INVALID_OP; } else { bf_set_zero(r, r_sign); return 0; } } else if (b->expn == BF_EXP_ZERO) { bf_set_inf(r, r_sign); return BF_ST_DIVIDE_ZERO; } /* number of limbs of the quotient (2 extra bits for rounding) */ precl = (prec + 2 + LIMB_BITS - 1) / LIMB_BITS; nb = b->len; n = bf_max(a->len, precl); { limb_t *taba, na; slimb_t d; na = n + nb; taba = bf_malloc(s, (na + 1) * sizeof(limb_t)); if (!taba) goto fail; d = na - a->len; memset(taba, 0, d * sizeof(limb_t)); memcpy(taba + d, a->tab, a->len * sizeof(limb_t)); if (bf_resize(r, n + 1)) goto fail1; if (mp_divnorm(s, r->tab, taba, na, b->tab, nb)) { fail1: bf_free(s, taba); goto fail; } /* see if non zero remainder */ if (mp_scan_nz(taba, nb)) r->tab[0] |= 1; bf_free(r->ctx, taba); r->expn = a->expn - b->expn + LIMB_BITS; r->sign = r_sign; ret = bf_normalize_and_round(r, prec, flags); } return ret; fail: bf_set_nan(r); return BF_ST_MEM_ERROR; } /* division and remainder. rnd_mode is the rounding mode for the quotient. The additional rounding mode BF_RND_EUCLIDIAN is supported. 'q' is an integer. 'r' is rounded with prec and flags (prec can be BF_PREC_INF). */ int bf_divrem(bf_t *q, bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags, int rnd_mode) { bf_t a1_s, *a1 = &a1_s; bf_t b1_s, *b1 = &b1_s; int q_sign, ret; BOOL is_ceil, is_rndn; assert(q != a && q != b); assert(r != a && r != b); assert(q != r); if (a->len == 0 || b->len == 0) { bf_set_zero(q, 0); if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { bf_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_ZERO) { bf_set_nan(r); return BF_ST_INVALID_OP; } else { bf_set(r, a); return bf_round(r, prec, flags); } } q_sign = a->sign ^ b->sign; is_rndn = (rnd_mode == BF_RNDN || rnd_mode == BF_RNDNA); switch(rnd_mode) { default: case BF_RNDZ: case BF_RNDN: case BF_RNDNA: is_ceil = FALSE; break; case BF_RNDD: is_ceil = q_sign; break; case BF_RNDU: is_ceil = q_sign ^ 1; break; case BF_RNDA: is_ceil = TRUE; break; case BF_DIVREM_EUCLIDIAN: is_ceil = a->sign; break; } a1->expn = a->expn; a1->tab = a->tab; a1->len = a->len; a1->sign = 0; b1->expn = b->expn; b1->tab = b->tab; b1->len = b->len; b1->sign = 0; /* XXX: could improve to avoid having a large 'q' */ bf_tdivremu(q, r, a1, b1); if (bf_is_nan(q) || bf_is_nan(r)) goto fail; if (r->len != 0) { if (is_rndn) { int res; b1->expn--; res = bf_cmpu(r, b1); b1->expn++; if (res > 0 || (res == 0 && (rnd_mode == BF_RNDNA || get_bit(q->tab, q->len, q->len * LIMB_BITS - q->expn)))) { goto do_sub_r; } } else if (is_ceil) { do_sub_r: ret = bf_add_si(q, q, 1, BF_PREC_INF, BF_RNDZ); ret |= bf_sub(r, r, b1, BF_PREC_INF, BF_RNDZ); if (ret & BF_ST_MEM_ERROR) goto fail; } } r->sign ^= a->sign; q->sign = q_sign; return bf_round(r, prec, flags); fail: bf_set_nan(q); bf_set_nan(r); return BF_ST_MEM_ERROR; } int bf_rem(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags, int rnd_mode) { bf_t q_s, *q = &q_s; int ret; bf_init(r->ctx, q); ret = bf_divrem(q, r, a, b, prec, flags, rnd_mode); bf_delete(q); return ret; } static inline int bf_get_limb(slimb_t *pres, const bf_t *a, int flags) { #if LIMB_BITS == 32 return bf_get_int32(pres, a, flags); #else return bf_get_int64(pres, a, flags); #endif } int bf_remquo(slimb_t *pq, bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags, int rnd_mode) { bf_t q_s, *q = &q_s; int ret; bf_init(r->ctx, q); ret = bf_divrem(q, r, a, b, prec, flags, rnd_mode); bf_get_limb(pq, q, BF_GET_INT_MOD); bf_delete(q); return ret; } static __maybe_unused inline limb_t mul_mod(limb_t a, limb_t b, limb_t m) { dlimb_t t; t = (dlimb_t)a * (dlimb_t)b; return t % m; } #if defined(USE_MUL_CHECK) static limb_t mp_mod1(const limb_t *tab, limb_t n, limb_t m, limb_t r) { slimb_t i; dlimb_t t; for(i = n - 1; i >= 0; i--) { t = ((dlimb_t)r << LIMB_BITS) | tab[i]; r = t % m; } return r; } #endif static const uint16_t sqrt_table[192] = { 128,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,144,145,146,147,148,149,150,150,151,152,153,154,155,155,156,157,158,159,160,160,161,162,163,163,164,165,166,167,167,168,169,170,170,171,172,173,173,174,175,176,176,177,178,178,179,180,181,181,182,183,183,184,185,185,186,187,187,188,189,189,190,191,192,192,193,193,194,195,195,196,197,197,198,199,199,200,201,201,202,203,203,204,204,205,206,206,207,208,208,209,209,210,211,211,212,212,213,214,214,215,215,216,217,217,218,218,219,219,220,221,221,222,222,223,224,224,225,225,226,226,227,227,228,229,229,230,230,231,231,232,232,233,234,234,235,235,236,236,237,237,238,238,239,240,240,241,241,242,242,243,243,244,244,245,245,246,246,247,247,248,248,249,249,250,250,251,251,252,252,253,253,254,254,255, }; /* a >= 2^(LIMB_BITS - 2). Return (s, r) with s=floor(sqrt(a)) and r=a-s^2. 0 <= r <= 2 * s */ static limb_t mp_sqrtrem1(limb_t *pr, limb_t a) { limb_t s1, r1, s, r, q, u, num; /* use a table for the 16 -> 8 bit sqrt */ s1 = sqrt_table[(a >> (LIMB_BITS - 8)) - 64]; r1 = (a >> (LIMB_BITS - 16)) - s1 * s1; if (r1 > 2 * s1) { r1 -= 2 * s1 + 1; s1++; } /* one iteration to get a 32 -> 16 bit sqrt */ num = (r1 << 8) | ((a >> (LIMB_BITS - 32 + 8)) & 0xff); q = num / (2 * s1); /* q <= 2^8 */ u = num % (2 * s1); s = (s1 << 8) + q; r = (u << 8) | ((a >> (LIMB_BITS - 32)) & 0xff); r -= q * q; if ((slimb_t)r < 0) { s--; r += 2 * s + 1; } #if LIMB_BITS == 64 s1 = s; r1 = r; /* one more iteration for 64 -> 32 bit sqrt */ num = (r1 << 16) | ((a >> (LIMB_BITS - 64 + 16)) & 0xffff); q = num / (2 * s1); /* q <= 2^16 */ u = num % (2 * s1); s = (s1 << 16) + q; r = (u << 16) | ((a >> (LIMB_BITS - 64)) & 0xffff); r -= q * q; if ((slimb_t)r < 0) { s--; r += 2 * s + 1; } #endif *pr = r; return s; } /* return floor(sqrt(a)) */ limb_t bf_isqrt(limb_t a) { limb_t s, r; int k; if (a == 0) return 0; k = clz(a) & ~1; s = mp_sqrtrem1(&r, a << k); s >>= (k >> 1); return s; } static limb_t mp_sqrtrem2(limb_t *tabs, limb_t *taba) { limb_t s1, r1, s, q, u, a0, a1; dlimb_t r, num; int l; a0 = taba[0]; a1 = taba[1]; s1 = mp_sqrtrem1(&r1, a1); l = LIMB_BITS / 2; num = ((dlimb_t)r1 << l) | (a0 >> l); q = num / (2 * s1); u = num % (2 * s1); s = (s1 << l) + q; r = ((dlimb_t)u << l) | (a0 & (((limb_t)1 << l) - 1)); if (unlikely((q >> l) != 0)) r -= (dlimb_t)1 << LIMB_BITS; /* special case when q=2^l */ else r -= q * q; if ((slimb_t)(r >> LIMB_BITS) < 0) { s--; r += 2 * (dlimb_t)s + 1; } tabs[0] = s; taba[0] = r; return r >> LIMB_BITS; } //#define DEBUG_SQRTREM /* tmp_buf must contain (n / 2 + 1 limbs). *prh contains the highest limb of the remainder. */ static int mp_sqrtrem_rec(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n, limb_t *tmp_buf, limb_t *prh) { limb_t l, h, rh, ql, qh, c, i; if (n == 1) { *prh = mp_sqrtrem2(tabs, taba); return 0; } #ifdef DEBUG_SQRTREM mp_print_str("a", taba, 2 * n); #endif l = n / 2; h = n - l; if (mp_sqrtrem_rec(s, tabs + l, taba + 2 * l, h, tmp_buf, &qh)) return -1; #ifdef DEBUG_SQRTREM mp_print_str("s1", tabs + l, h); mp_print_str_h("r1", taba + 2 * l, h, qh); mp_print_str_h("r2", taba + l, n, qh); #endif /* the remainder is in taba + 2 * l. Its high bit is in qh */ if (qh) { mp_sub(taba + 2 * l, taba + 2 * l, tabs + l, h, 0); } /* instead of dividing by 2*s, divide by s (which is normalized) and update q and r */ if (mp_divnorm(s, tmp_buf, taba + l, n, tabs + l, h)) return -1; qh += tmp_buf[l]; for(i = 0; i < l; i++) tabs[i] = tmp_buf[i]; ql = mp_shr(tabs, tabs, l, 1, qh & 1); qh = qh >> 1; /* 0 or 1 */ if (ql) rh = mp_add(taba + l, taba + l, tabs + l, h, 0); else rh = 0; #ifdef DEBUG_SQRTREM mp_print_str_h("q", tabs, l, qh); mp_print_str_h("u", taba + l, h, rh); #endif mp_add_ui(tabs + l, qh, h); #ifdef DEBUG_SQRTREM mp_print_str_h("s2", tabs, n, sh); #endif /* q = qh, tabs[l - 1 ... 0], r = taba[n - 1 ... l] */ /* subtract q^2. if qh = 1 then q = B^l, so we can take shortcuts */ if (qh) { c = qh; } else { if (mp_mul(s, taba + n, tabs, l, tabs, l)) return -1; c = mp_sub(taba, taba, taba + n, 2 * l, 0); } rh -= mp_sub_ui(taba + 2 * l, c, n - 2 * l); if ((slimb_t)rh < 0) { mp_sub_ui(tabs, 1, n); rh += mp_add_mul1(taba, tabs, n, 2); rh += mp_add_ui(taba, 1, n); } *prh = rh; return 0; } /* 'taba' has 2*n limbs with n >= 1 and taba[2*n-1] >= 2 ^ (LIMB_BITS - 2). Return (s, r) with s=floor(sqrt(a)) and r=a-s^2. 0 <= r <= 2 * s. tabs has n limbs. r is returned in the lower n limbs of taba. Its r[n] is the returned value of the function. */ /* Algorithm from the article "Karatsuba Square Root" by Paul Zimmermann and inspirated from its GMP implementation */ int mp_sqrtrem(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n) { limb_t tmp_buf1[8]; limb_t *tmp_buf; mp_size_t n2; int ret; n2 = n / 2 + 1; if (n2 <= countof(tmp_buf1)) { tmp_buf = tmp_buf1; } else { tmp_buf = bf_malloc(s, sizeof(limb_t) * n2); if (!tmp_buf) return -1; } ret = mp_sqrtrem_rec(s, tabs, taba, n, tmp_buf, taba + n); if (tmp_buf != tmp_buf1) bf_free(s, tmp_buf); return ret; } /* Integer square root with remainder. 'a' must be an integer. r = floor(sqrt(a)) and rem = a - r^2. BF_ST_INEXACT is set if the result is inexact. 'rem' can be NULL if the remainder is not needed. */ int bf_sqrtrem(bf_t *r, bf_t *rem1, const bf_t *a) { int ret; if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bf_set_nan(r); } else if (a->expn == BF_EXP_INF && a->sign) { goto invalid_op; } else { bf_set(r, a); } if (rem1) bf_set_ui(rem1, 0); ret = 0; } else if (a->sign) { invalid_op: bf_set_nan(r); if (rem1) bf_set_ui(rem1, 0); ret = BF_ST_INVALID_OP; } else { bf_t rem_s, *rem; bf_sqrt(r, a, (a->expn + 1) / 2, BF_RNDZ); bf_rint(r, BF_RNDZ); /* see if the result is exact by computing the remainder */ if (rem1) { rem = rem1; } else { rem = &rem_s; bf_init(r->ctx, rem); } /* XXX: could avoid recomputing the remainder */ bf_mul(rem, r, r, BF_PREC_INF, BF_RNDZ); bf_neg(rem); bf_add(rem, rem, a, BF_PREC_INF, BF_RNDZ); if (bf_is_nan(rem)) { ret = BF_ST_MEM_ERROR; goto done; } if (rem->len != 0) { ret = BF_ST_INEXACT; } else { ret = 0; } done: if (!rem1) bf_delete(rem); } return ret; } int bf_sqrt(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) { bf_context_t *s = a->ctx; int ret; assert(r != a); if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bf_set_nan(r); } else if (a->expn == BF_EXP_INF && a->sign) { goto invalid_op; } else { bf_set(r, a); } ret = 0; } else if (a->sign) { invalid_op: bf_set_nan(r); ret = BF_ST_INVALID_OP; } else { limb_t *a1; slimb_t n, n1; limb_t res; /* convert the mantissa to an integer with at least 2 * prec + 4 bits */ n = (2 * (prec + 2) + 2 * LIMB_BITS - 1) / (2 * LIMB_BITS); if (bf_resize(r, n)) goto fail; a1 = bf_malloc(s, sizeof(limb_t) * 2 * n); if (!a1) goto fail; n1 = bf_min(2 * n, a->len); memset(a1, 0, (2 * n - n1) * sizeof(limb_t)); memcpy(a1 + 2 * n - n1, a->tab + a->len - n1, n1 * sizeof(limb_t)); if (a->expn & 1) { res = mp_shr(a1, a1, 2 * n, 1, 0); } else { res = 0; } if (mp_sqrtrem(s, r->tab, a1, n)) { bf_free(s, a1); goto fail; } if (!res) { res = mp_scan_nz(a1, n + 1); } bf_free(s, a1); if (!res) { res = mp_scan_nz(a->tab, a->len - n1); } if (res != 0) r->tab[0] |= 1; r->sign = 0; r->expn = (a->expn + 1) >> 1; ret = bf_round(r, prec, flags); } return ret; fail: bf_set_nan(r); return BF_ST_MEM_ERROR; } static no_inline int bf_op2(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags, bf_op2_func_t *func) { bf_t tmp; int ret; if (r == a || r == b) { bf_init(r->ctx, &tmp); ret = func(&tmp, a, b, prec, flags); bf_move(r, &tmp); } else { ret = func(r, a, b, prec, flags); } return ret; } int bf_add(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags) { return bf_op2(r, a, b, prec, flags, __bf_add); } int bf_sub(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags) { return bf_op2(r, a, b, prec, flags, __bf_sub); } int bf_div(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags) { return bf_op2(r, a, b, prec, flags, __bf_div); } int bf_mul_ui(bf_t *r, const bf_t *a, uint64_t b1, limb_t prec, bf_flags_t flags) { bf_t b; int ret; bf_init(r->ctx, &b); ret = bf_set_ui(&b, b1); ret |= bf_mul(r, a, &b, prec, flags); bf_delete(&b); return ret; } int bf_mul_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec, bf_flags_t flags) { bf_t b; int ret; bf_init(r->ctx, &b); ret = bf_set_si(&b, b1); ret |= bf_mul(r, a, &b, prec, flags); bf_delete(&b); return ret; } int bf_add_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec, bf_flags_t flags) { bf_t b; int ret; bf_init(r->ctx, &b); ret = bf_set_si(&b, b1); ret |= bf_add(r, a, &b, prec, flags); bf_delete(&b); return ret; } static int bf_pow_ui(bf_t *r, const bf_t *a, limb_t b, limb_t prec, bf_flags_t flags) { int ret, n_bits, i; assert(r != a); if (b == 0) return bf_set_ui(r, 1); ret = bf_set(r, a); n_bits = LIMB_BITS - clz(b); for(i = n_bits - 2; i >= 0; i--) { ret |= bf_mul(r, r, r, prec, flags); if ((b >> i) & 1) ret |= bf_mul(r, r, a, prec, flags); } return ret; } static int bf_pow_ui_ui(bf_t *r, limb_t a1, limb_t b, limb_t prec, bf_flags_t flags) { bf_t a; int ret; if (a1 == 10 && b <= LIMB_DIGITS) { /* use precomputed powers. We do not round at this point because we expect the caller to do it */ ret = bf_set_ui(r, mp_pow_dec[b]); } else { bf_init(r->ctx, &a); ret = bf_set_ui(&a, a1); ret |= bf_pow_ui(r, &a, b, prec, flags); bf_delete(&a); } return ret; } /* convert to integer (infinite precision) */ int bf_rint(bf_t *r, int rnd_mode) { return bf_round(r, 0, rnd_mode | BF_FLAG_RADPNT_PREC); } /* logical operations */ #define BF_LOGIC_OR 0 #define BF_LOGIC_XOR 1 #define BF_LOGIC_AND 2 static inline limb_t bf_logic_op1(limb_t a, limb_t b, int op) { switch(op) { case BF_LOGIC_OR: return a | b; case BF_LOGIC_XOR: return a ^ b; default: case BF_LOGIC_AND: return a & b; } } static int bf_logic_op(bf_t *r, const bf_t *a1, const bf_t *b1, int op) { bf_t b1_s, a1_s, *a, *b; limb_t a_sign, b_sign, r_sign; slimb_t l, i, a_bit_offset, b_bit_offset; limb_t v1, v2, v1_mask, v2_mask, r_mask; int ret; assert(r != a1 && r != b1); if (a1->expn <= 0) a_sign = 0; /* minus zero is considered as positive */ else a_sign = a1->sign; if (b1->expn <= 0) b_sign = 0; /* minus zero is considered as positive */ else b_sign = b1->sign; if (a_sign) { a = &a1_s; bf_init(r->ctx, a); if (bf_add_si(a, a1, 1, BF_PREC_INF, BF_RNDZ)) { b = NULL; goto fail; } } else { a = (bf_t *)a1; } if (b_sign) { b = &b1_s; bf_init(r->ctx, b); if (bf_add_si(b, b1, 1, BF_PREC_INF, BF_RNDZ)) goto fail; } else { b = (bf_t *)b1; } r_sign = bf_logic_op1(a_sign, b_sign, op); if (op == BF_LOGIC_AND && r_sign == 0) { /* no need to compute extra zeros for and */ if (a_sign == 0 && b_sign == 0) l = bf_min(a->expn, b->expn); else if (a_sign == 0) l = a->expn; else l = b->expn; } else { l = bf_max(a->expn, b->expn); } /* Note: a or b can be zero */ l = (bf_max(l, 1) + LIMB_BITS - 1) / LIMB_BITS; if (bf_resize(r, l)) goto fail; a_bit_offset = a->len * LIMB_BITS - a->expn; b_bit_offset = b->len * LIMB_BITS - b->expn; v1_mask = -a_sign; v2_mask = -b_sign; r_mask = -r_sign; for(i = 0; i < l; i++) { v1 = get_bits(a->tab, a->len, a_bit_offset + i * LIMB_BITS) ^ v1_mask; v2 = get_bits(b->tab, b->len, b_bit_offset + i * LIMB_BITS) ^ v2_mask; r->tab[i] = bf_logic_op1(v1, v2, op) ^ r_mask; } r->expn = l * LIMB_BITS; r->sign = r_sign; bf_normalize_and_round(r, BF_PREC_INF, BF_RNDZ); /* cannot fail */ if (r_sign) { if (bf_add_si(r, r, -1, BF_PREC_INF, BF_RNDZ)) goto fail; } ret = 0; done: if (a == &a1_s) bf_delete(a); if (b == &b1_s) bf_delete(b); return ret; fail: bf_set_nan(r); ret = BF_ST_MEM_ERROR; goto done; } /* 'a' and 'b' must be integers. Return 0 or BF_ST_MEM_ERROR. */ int bf_logic_or(bf_t *r, const bf_t *a, const bf_t *b) { return bf_logic_op(r, a, b, BF_LOGIC_OR); } /* 'a' and 'b' must be integers. Return 0 or BF_ST_MEM_ERROR. */ int bf_logic_xor(bf_t *r, const bf_t *a, const bf_t *b) { return bf_logic_op(r, a, b, BF_LOGIC_XOR); } /* 'a' and 'b' must be integers. Return 0 or BF_ST_MEM_ERROR. */ int bf_logic_and(bf_t *r, const bf_t *a, const bf_t *b) { return bf_logic_op(r, a, b, BF_LOGIC_AND); } /* conversion between fixed size types */ typedef union { double d; uint64_t u; } Float64Union; int bf_get_float64(const bf_t *a, double *pres, bf_rnd_t rnd_mode) { Float64Union u; int e, ret; uint64_t m; ret = 0; if (a->expn == BF_EXP_NAN) { u.u = 0x7ff8000000000000; /* quiet nan */ } else { bf_t b_s, *b = &b_s; bf_init(a->ctx, b); bf_set(b, a); if (bf_is_finite(b)) { ret = bf_round(b, 53, rnd_mode | BF_FLAG_SUBNORMAL | bf_set_exp_bits(11)); } if (b->expn == BF_EXP_INF) { e = (1 << 11) - 1; m = 0; } else if (b->expn == BF_EXP_ZERO) { e = 0; m = 0; } else { e = b->expn + 1023 - 1; #if LIMB_BITS == 32 if (b->len == 2) { m = ((uint64_t)b->tab[1] << 32) | b->tab[0]; } else { m = ((uint64_t)b->tab[0] << 32); } #else m = b->tab[0]; #endif if (e <= 0) { /* subnormal */ m = m >> (12 - e); e = 0; } else { m = (m << 1) >> 12; } } u.u = m | ((uint64_t)e << 52) | ((uint64_t)b->sign << 63); bf_delete(b); } *pres = u.d; return ret; } int bf_set_float64(bf_t *a, double d) { Float64Union u; uint64_t m; int shift, e, sgn; u.d = d; sgn = u.u >> 63; e = (u.u >> 52) & ((1 << 11) - 1); m = u.u & (((uint64_t)1 << 52) - 1); if (e == ((1 << 11) - 1)) { if (m != 0) { bf_set_nan(a); } else { bf_set_inf(a, sgn); } } else if (e == 0) { if (m == 0) { bf_set_zero(a, sgn); } else { /* subnormal number */ m <<= 12; shift = clz64(m); m <<= shift; e = -shift; goto norm; } } else { m = (m << 11) | ((uint64_t)1 << 63); norm: a->expn = e - 1023 + 1; #if LIMB_BITS == 32 if (bf_resize(a, 2)) goto fail; a->tab[0] = m; a->tab[1] = m >> 32; #else if (bf_resize(a, 1)) goto fail; a->tab[0] = m; #endif a->sign = sgn; } return 0; fail: bf_set_nan(a); return BF_ST_MEM_ERROR; } /* The rounding mode is always BF_RNDZ. Return BF_ST_INVALID_OP if there is an overflow and 0 otherwise. */ int bf_get_int32(int *pres, const bf_t *a, int flags) { uint32_t v; int ret; if (a->expn >= BF_EXP_INF) { ret = BF_ST_INVALID_OP; if (flags & BF_GET_INT_MOD) { v = 0; } else if (a->expn == BF_EXP_INF) { v = (uint32_t)INT32_MAX + a->sign; } else { v = INT32_MAX; } } else if (a->expn <= 0) { v = 0; ret = 0; } else if (a->expn <= 31) { v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn); if (a->sign) v = -v; ret = 0; } else if (!(flags & BF_GET_INT_MOD)) { ret = BF_ST_INVALID_OP; if (a->sign) { v = (uint32_t)INT32_MAX + 1; if (a->expn == 32 && (a->tab[a->len - 1] >> (LIMB_BITS - 32)) == v) { ret = 0; } } else { v = INT32_MAX; } } else { v = get_bits(a->tab, a->len, a->len * LIMB_BITS - a->expn); if (a->sign) v = -v; ret = 0; } *pres = v; return ret; } /* The rounding mode is always BF_RNDZ. Return BF_ST_INVALID_OP if there is an overflow and 0 otherwise. */ int bf_get_int64(int64_t *pres, const bf_t *a, int flags) { uint64_t v; int ret; if (a->expn >= BF_EXP_INF) { ret = BF_ST_INVALID_OP; if (flags & BF_GET_INT_MOD) { v = 0; } else if (a->expn == BF_EXP_INF) { v = (uint64_t)INT64_MAX + a->sign; } else { v = INT64_MAX; } } else if (a->expn <= 0) { v = 0; ret = 0; } else if (a->expn <= 63) { #if LIMB_BITS == 32 if (a->expn <= 32) v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn); else v = (((uint64_t)a->tab[a->len - 1] << 32) | get_limbz(a, a->len - 2)) >> (64 - a->expn); #else v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn); #endif if (a->sign) v = -v; ret = 0; } else if (!(flags & BF_GET_INT_MOD)) { ret = BF_ST_INVALID_OP; if (a->sign) { uint64_t v1; v = (uint64_t)INT64_MAX + 1; if (a->expn == 64) { v1 = a->tab[a->len - 1]; #if LIMB_BITS == 32 v1 = (v1 << 32) | get_limbz(a, a->len - 2); #endif if (v1 == v) ret = 0; } } else { v = INT64_MAX; } } else { slimb_t bit_pos = a->len * LIMB_BITS - a->expn; v = get_bits(a->tab, a->len, bit_pos); #if LIMB_BITS == 32 v |= (uint64_t)get_bits(a->tab, a->len, bit_pos + 32) << 32; #endif if (a->sign) v = -v; ret = 0; } *pres = v; return ret; } /* The rounding mode is always BF_RNDZ. Return BF_ST_INVALID_OP if there is an overflow and 0 otherwise. */ int bf_get_uint64(uint64_t *pres, const bf_t *a) { uint64_t v; int ret; if (a->expn == BF_EXP_NAN) { goto overflow; } else if (a->expn <= 0) { v = 0; ret = 0; } else if (a->sign) { v = 0; ret = BF_ST_INVALID_OP; } else if (a->expn <= 64) { #if LIMB_BITS == 32 if (a->expn <= 32) v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn); else v = (((uint64_t)a->tab[a->len - 1] << 32) | get_limbz(a, a->len - 2)) >> (64 - a->expn); #else v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn); #endif ret = 0; } else { overflow: v = UINT64_MAX; ret = BF_ST_INVALID_OP; } *pres = v; return ret; } /* base conversion from radix */ static const uint8_t digits_per_limb_table[BF_RADIX_MAX - 1] = { #if LIMB_BITS == 32 32,20,16,13,12,11,10,10, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, #else 64,40,32,27,24,22,21,20,19,18,17,17,16,16,16,15,15,15,14,14,14,14,13,13,13,13,13,13,13,12,12,12,12,12,12, #endif }; static limb_t get_limb_radix(int radix) { int i, k; limb_t radixl; k = digits_per_limb_table[radix - 2]; radixl = radix; for(i = 1; i < k; i++) radixl *= radix; return radixl; } /* return != 0 if error */ static int bf_integer_from_radix_rec(bf_t *r, const limb_t *tab, limb_t n, int level, limb_t n0, limb_t radix, bf_t *pow_tab) { int ret; if (n == 1) { ret = bf_set_ui(r, tab[0]); } else { bf_t T_s, *T = &T_s, *B; limb_t n1, n2; n2 = (((n0 * 2) >> (level + 1)) + 1) / 2; n1 = n - n2; // printf("level=%d n0=%ld n1=%ld n2=%ld\n", level, n0, n1, n2); B = &pow_tab[level]; if (B->len == 0) { ret = bf_pow_ui_ui(B, radix, n2, BF_PREC_INF, BF_RNDZ); if (ret) return ret; } ret = bf_integer_from_radix_rec(r, tab + n2, n1, level + 1, n0, radix, pow_tab); if (ret) return ret; ret = bf_mul(r, r, B, BF_PREC_INF, BF_RNDZ); if (ret) return ret; bf_init(r->ctx, T); ret = bf_integer_from_radix_rec(T, tab, n2, level + 1, n0, radix, pow_tab); if (!ret) ret = bf_add(r, r, T, BF_PREC_INF, BF_RNDZ); bf_delete(T); } return ret; // bf_print_str(" r=", r); } /* return 0 if OK != 0 if memory error */ static int bf_integer_from_radix(bf_t *r, const limb_t *tab, limb_t n, limb_t radix) { bf_context_t *s = r->ctx; int pow_tab_len, i, ret; limb_t radixl; bf_t *pow_tab; radixl = get_limb_radix(radix); pow_tab_len = ceil_log2(n) + 2; /* XXX: check */ pow_tab = bf_malloc(s, sizeof(pow_tab[0]) * pow_tab_len); if (!pow_tab) return -1; for(i = 0; i < pow_tab_len; i++) bf_init(r->ctx, &pow_tab[i]); ret = bf_integer_from_radix_rec(r, tab, n, 0, n, radixl, pow_tab); for(i = 0; i < pow_tab_len; i++) { bf_delete(&pow_tab[i]); } bf_free(s, pow_tab); return ret; } /* compute and round T * radix^expn. */ int bf_mul_pow_radix(bf_t *r, const bf_t *T, limb_t radix, slimb_t expn, limb_t prec, bf_flags_t flags) { int ret, expn_sign, overflow; slimb_t e, extra_bits, prec1, ziv_extra_bits; bf_t B_s, *B = &B_s; if (T->len == 0) { return bf_set(r, T); } else if (expn == 0) { ret = bf_set(r, T); ret |= bf_round(r, prec, flags); return ret; } e = expn; expn_sign = 0; if (e < 0) { e = -e; expn_sign = 1; } bf_init(r->ctx, B); if (prec == BF_PREC_INF) { /* infinite precision: only used if the result is known to be exact */ ret = bf_pow_ui_ui(B, radix, e, BF_PREC_INF, BF_RNDN); if (expn_sign) { ret |= bf_div(r, T, B, T->len * LIMB_BITS, BF_RNDN); } else { ret |= bf_mul(r, T, B, BF_PREC_INF, BF_RNDN); } } else { ziv_extra_bits = 16; for(;;) { prec1 = prec + ziv_extra_bits; /* XXX: correct overflow/underflow handling */ /* XXX: rigorous error analysis needed */ extra_bits = ceil_log2(e) * 2 + 1; ret = bf_pow_ui_ui(B, radix, e, prec1 + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP); overflow = !bf_is_finite(B); /* XXX: if bf_pow_ui_ui returns an exact result, can stop after the next operation */ if (expn_sign) ret |= bf_div(r, T, B, prec1 + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP); else ret |= bf_mul(r, T, B, prec1 + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP); if (ret & BF_ST_MEM_ERROR) break; if ((ret & BF_ST_INEXACT) && !bf_can_round(r, prec, flags & BF_RND_MASK, prec1) && !overflow) { /* and more precision and retry */ ziv_extra_bits = ziv_extra_bits + (ziv_extra_bits / 2); } else { /* XXX: need to use __bf_round() to pass the inexact flag for the subnormal case */ ret = bf_round(r, prec, flags) | (ret & BF_ST_INEXACT); break; } } } bf_delete(B); return ret; } static inline int to_digit(int c) { if (c >= '0' && c <= '9') return c - '0'; else if (c >= 'A' && c <= 'Z') return c - 'A' + 10; else if (c >= 'a' && c <= 'z') return c - 'a' + 10; else return 36; } /* add a limb at 'pos' and decrement pos. new space is created if needed. Return 0 if OK, -1 if memory error */ static int bf_add_limb(bf_t *a, slimb_t *ppos, limb_t v) { slimb_t pos; pos = *ppos; if (unlikely(pos < 0)) { limb_t new_size, d, *new_tab; new_size = bf_max(a->len + 1, a->len * 3 / 2); new_tab = bf_realloc(a->ctx, a->tab, sizeof(limb_t) * new_size); if (!new_tab) return -1; a->tab = new_tab; d = new_size - a->len; memmove(a->tab + d, a->tab, a->len * sizeof(limb_t)); a->len = new_size; pos += d; } a->tab[pos--] = v; *ppos = pos; return 0; } static int bf_tolower(int c) { if (c >= 'A' && c <= 'Z') c = c - 'A' + 'a'; return c; } static int strcasestart(const char *str, const char *val, const char **ptr) { const char *p, *q; p = str; q = val; while (*q != '\0') { if (bf_tolower(*p) != *q) return 0; p++; q++; } if (ptr) *ptr = p; return 1; } static int bf_atof_internal(bf_t *r, slimb_t *pexponent, const char *str, const char **pnext, int radix, limb_t prec, bf_flags_t flags, BOOL is_dec) { const char *p, *p_start; int is_neg, radix_bits, exp_is_neg, ret, digits_per_limb, shift; limb_t cur_limb; slimb_t pos, expn, int_len, digit_count; BOOL has_decpt, is_bin_exp; bf_t a_s, *a; *pexponent = 0; p = str; if (!(flags & BF_ATOF_NO_NAN_INF) && radix <= 16 && strcasestart(p, "nan", &p)) { bf_set_nan(r); ret = 0; goto done; } is_neg = 0; if (p[0] == '+') { p++; p_start = p; } else if (p[0] == '-') { is_neg = 1; p++; p_start = p; } else { p_start = p; } if (p[0] == '0') { if ((p[1] == 'x' || p[1] == 'X') && (radix == 0 || radix == 16) && !(flags & BF_ATOF_NO_HEX)) { radix = 16; p += 2; } else if ((p[1] == 'o' || p[1] == 'O') && radix == 0 && (flags & BF_ATOF_BIN_OCT)) { p += 2; radix = 8; } else if ((p[1] == 'b' || p[1] == 'B') && radix == 0 && (flags & BF_ATOF_BIN_OCT)) { p += 2; radix = 2; } else { goto no_prefix; } /* there must be a digit after the prefix */ if (to_digit((uint8_t)*p) >= radix) { bf_set_nan(r); ret = 0; goto done; } no_prefix: ; } else { if (!(flags & BF_ATOF_NO_NAN_INF) && radix <= 16 && strcasestart(p, "inf", &p)) { bf_set_inf(r, is_neg); ret = 0; goto done; } } if (radix == 0) radix = 10; if (is_dec) { assert(radix == 10); radix_bits = 0; a = r; } else if ((radix & (radix - 1)) != 0) { radix_bits = 0; /* base is not a power of two */ a = &a_s; bf_init(r->ctx, a); } else { radix_bits = ceil_log2(radix); a = r; } /* skip leading zeros */ /* XXX: could also skip zeros after the decimal point */ while (*p == '0') p++; if (radix_bits) { shift = digits_per_limb = LIMB_BITS; } else { radix_bits = 0; shift = digits_per_limb = digits_per_limb_table[radix - 2]; } cur_limb = 0; bf_resize(a, 1); pos = 0; has_decpt = FALSE; int_len = digit_count = 0; for(;;) { limb_t c; if (*p == '.' && (p > p_start || to_digit(p[1]) < radix)) { if (has_decpt) break; has_decpt = TRUE; int_len = digit_count; p++; } c = to_digit(*p); if (c >= radix) break; digit_count++; p++; if (radix_bits) { shift -= radix_bits; if (shift <= 0) { cur_limb |= c >> (-shift); if (bf_add_limb(a, &pos, cur_limb)) goto mem_error; if (shift < 0) cur_limb = c << (LIMB_BITS + shift); else cur_limb = 0; shift += LIMB_BITS; } else { cur_limb |= c << shift; } } else { cur_limb = cur_limb * radix + c; shift--; if (shift == 0) { if (bf_add_limb(a, &pos, cur_limb)) goto mem_error; shift = digits_per_limb; cur_limb = 0; } } } if (!has_decpt) int_len = digit_count; /* add the last limb and pad with zeros */ if (shift != digits_per_limb) { if (radix_bits == 0) { while (shift != 0) { cur_limb *= radix; shift--; } } if (bf_add_limb(a, &pos, cur_limb)) { mem_error: ret = BF_ST_MEM_ERROR; if (!radix_bits) bf_delete(a); bf_set_nan(r); goto done; } } /* reset the next limbs to zero (we prefer to reallocate in the renormalization) */ memset(a->tab, 0, (pos + 1) * sizeof(limb_t)); if (p == p_start) { ret = 0; if (!radix_bits) bf_delete(a); bf_set_nan(r); goto done; } /* parse the exponent, if any */ expn = 0; is_bin_exp = FALSE; if (((radix == 10 && (*p == 'e' || *p == 'E')) || (radix != 10 && (*p == '@' || (radix_bits && (*p == 'p' || *p == 'P'))))) && p > p_start) { is_bin_exp = (*p == 'p' || *p == 'P'); p++; exp_is_neg = 0; if (*p == '+') { p++; } else if (*p == '-') { exp_is_neg = 1; p++; } for(;;) { int c; c = to_digit(*p); if (c >= 10) break; if (unlikely(expn > ((BF_RAW_EXP_MAX - 2 - 9) / 10))) { /* exponent overflow */ if (exp_is_neg) { bf_set_zero(r, is_neg); ret = BF_ST_UNDERFLOW | BF_ST_INEXACT; } else { bf_set_inf(r, is_neg); ret = BF_ST_OVERFLOW | BF_ST_INEXACT; } goto done; } p++; expn = expn * 10 + c; } if (exp_is_neg) expn = -expn; } if (is_dec) { a->expn = expn + int_len; a->sign = is_neg; ret = bfdec_normalize_and_round((bfdec_t *)a, prec, flags); } else if (radix_bits) { /* XXX: may overflow */ if (!is_bin_exp) expn *= radix_bits; a->expn = expn + (int_len * radix_bits); a->sign = is_neg; ret = bf_normalize_and_round(a, prec, flags); } else { limb_t l; pos++; l = a->len - pos; /* number of limbs */ if (l == 0) { bf_set_zero(r, is_neg); ret = 0; } else { bf_t T_s, *T = &T_s; expn -= l * digits_per_limb - int_len; bf_init(r->ctx, T); if (bf_integer_from_radix(T, a->tab + pos, l, radix)) { bf_set_nan(r); ret = BF_ST_MEM_ERROR; } else { T->sign = is_neg; if (flags & BF_ATOF_EXPONENT) { /* return the exponent */ *pexponent = expn; ret = bf_set(r, T); } else { ret = bf_mul_pow_radix(r, T, radix, expn, prec, flags); } } bf_delete(T); } bf_delete(a); } done: if (pnext) *pnext = p; return ret; } /* Return (status, n, exp). 'status' is the floating point status. 'n' is the parsed number. If (flags & BF_ATOF_EXPONENT) and if the radix is not a power of two, the parsed number is equal to r * (*pexponent)^radix. Otherwise *pexponent = 0. */ int bf_atof2(bf_t *r, slimb_t *pexponent, const char *str, const char **pnext, int radix, limb_t prec, bf_flags_t flags) { return bf_atof_internal(r, pexponent, str, pnext, radix, prec, flags, FALSE); } int bf_atof(bf_t *r, const char *str, const char **pnext, int radix, limb_t prec, bf_flags_t flags) { slimb_t dummy_exp; return bf_atof_internal(r, &dummy_exp, str, pnext, radix, prec, flags, FALSE); } /* base conversion to radix */ #if LIMB_BITS == 64 #define RADIXL_10 UINT64_C(10000000000000000000) #else #define RADIXL_10 UINT64_C(1000000000) #endif static const uint32_t inv_log2_radix[BF_RADIX_MAX - 1][LIMB_BITS / 32 + 1] = { #if LIMB_BITS == 32 { 0x80000000, 0x00000000,}, { 0x50c24e60, 0xd4d4f4a7,}, { 0x40000000, 0x00000000,}, { 0x372068d2, 0x0a1ee5ca,}, { 0x3184648d, 0xb8153e7a,}, { 0x2d983275, 0x9d5369c4,}, { 0x2aaaaaaa, 0xaaaaaaab,}, { 0x28612730, 0x6a6a7a54,}, { 0x268826a1, 0x3ef3fde6,}, { 0x25001383, 0xbac8a744,}, { 0x23b46706, 0x82c0c709,}, { 0x229729f1, 0xb2c83ded,}, { 0x219e7ffd, 0xa5ad572b,}, { 0x20c33b88, 0xda7c29ab,}, { 0x20000000, 0x00000000,}, { 0x1f50b57e, 0xac5884b3,}, { 0x1eb22cc6, 0x8aa6e26f,}, { 0x1e21e118, 0x0c5daab2,}, { 0x1d9dcd21, 0x439834e4,}, { 0x1d244c78, 0x367a0d65,}, { 0x1cb40589, 0xac173e0c,}, { 0x1c4bd95b, 0xa8d72b0d,}, { 0x1bead768, 0x98f8ce4c,}, { 0x1b903469, 0x050f72e5,}, { 0x1b3b433f, 0x2eb06f15,}, { 0x1aeb6f75, 0x9c46fc38,}, { 0x1aa038eb, 0x0e3bfd17,}, { 0x1a593062, 0xb38d8c56,}, { 0x1a15f4c3, 0x2b95a2e6,}, { 0x19d630dc, 0xcc7ddef9,}, { 0x19999999, 0x9999999a,}, { 0x195fec80, 0x8a609431,}, { 0x1928ee7b, 0x0b4f22f9,}, { 0x18f46acf, 0x8c06e318,}, { 0x18c23246, 0xdc0a9f3d,}, #else { 0x80000000, 0x00000000, 0x00000000,}, { 0x50c24e60, 0xd4d4f4a7, 0x021f57bc,}, { 0x40000000, 0x00000000, 0x00000000,}, { 0x372068d2, 0x0a1ee5ca, 0x19ea911b,}, { 0x3184648d, 0xb8153e7a, 0x7fc2d2e1,}, { 0x2d983275, 0x9d5369c4, 0x4dec1661,}, { 0x2aaaaaaa, 0xaaaaaaaa, 0xaaaaaaab,}, { 0x28612730, 0x6a6a7a53, 0x810fabde,}, { 0x268826a1, 0x3ef3fde6, 0x23e2566b,}, { 0x25001383, 0xbac8a744, 0x385a3349,}, { 0x23b46706, 0x82c0c709, 0x3f891718,}, { 0x229729f1, 0xb2c83ded, 0x15fba800,}, { 0x219e7ffd, 0xa5ad572a, 0xe169744b,}, { 0x20c33b88, 0xda7c29aa, 0x9bddee52,}, { 0x20000000, 0x00000000, 0x00000000,}, { 0x1f50b57e, 0xac5884b3, 0x70e28eee,}, { 0x1eb22cc6, 0x8aa6e26f, 0x06d1a2a2,}, { 0x1e21e118, 0x0c5daab1, 0x81b4f4bf,}, { 0x1d9dcd21, 0x439834e3, 0x81667575,}, { 0x1d244c78, 0x367a0d64, 0xc8204d6d,}, { 0x1cb40589, 0xac173e0c, 0x3b7b16ba,}, { 0x1c4bd95b, 0xa8d72b0d, 0x5879f25a,}, { 0x1bead768, 0x98f8ce4c, 0x66cc2858,}, { 0x1b903469, 0x050f72e5, 0x0cf5488e,}, { 0x1b3b433f, 0x2eb06f14, 0x8c89719c,}, { 0x1aeb6f75, 0x9c46fc37, 0xab5fc7e9,}, { 0x1aa038eb, 0x0e3bfd17, 0x1bd62080,}, { 0x1a593062, 0xb38d8c56, 0x7998ab45,}, { 0x1a15f4c3, 0x2b95a2e6, 0x46aed6a0,}, { 0x19d630dc, 0xcc7ddef9, 0x5aadd61b,}, { 0x19999999, 0x99999999, 0x9999999a,}, { 0x195fec80, 0x8a609430, 0xe1106014,}, { 0x1928ee7b, 0x0b4f22f9, 0x5f69791d,}, { 0x18f46acf, 0x8c06e318, 0x4d2aeb2c,}, { 0x18c23246, 0xdc0a9f3d, 0x3fe16970,}, #endif }; static const limb_t log2_radix[BF_RADIX_MAX - 1] = { #if LIMB_BITS == 32 0x20000000, 0x32b80347, 0x40000000, 0x4a4d3c26, 0x52b80347, 0x59d5d9fd, 0x60000000, 0x6570068e, 0x6a4d3c26, 0x6eb3a9f0, 0x72b80347, 0x766a008e, 0x79d5d9fd, 0x7d053f6d, 0x80000000, 0x82cc7edf, 0x8570068e, 0x87ef05ae, 0x8a4d3c26, 0x8c8ddd45, 0x8eb3a9f0, 0x90c10501, 0x92b80347, 0x949a784c, 0x966a008e, 0x982809d6, 0x99d5d9fd, 0x9b74948f, 0x9d053f6d, 0x9e88c6b3, 0xa0000000, 0xa16bad37, 0xa2cc7edf, 0xa4231623, 0xa570068e, #else 0x2000000000000000, 0x32b803473f7ad0f4, 0x4000000000000000, 0x4a4d3c25e68dc57f, 0x52b803473f7ad0f4, 0x59d5d9fd5010b366, 0x6000000000000000, 0x6570068e7ef5a1e8, 0x6a4d3c25e68dc57f, 0x6eb3a9f01975077f, 0x72b803473f7ad0f4, 0x766a008e4788cbcd, 0x79d5d9fd5010b366, 0x7d053f6d26089673, 0x8000000000000000, 0x82cc7edf592262d0, 0x8570068e7ef5a1e8, 0x87ef05ae409a0289, 0x8a4d3c25e68dc57f, 0x8c8ddd448f8b845a, 0x8eb3a9f01975077f, 0x90c10500d63aa659, 0x92b803473f7ad0f4, 0x949a784bcd1b8afe, 0x966a008e4788cbcd, 0x982809d5be7072dc, 0x99d5d9fd5010b366, 0x9b74948f5532da4b, 0x9d053f6d26089673, 0x9e88c6b3626a72aa, 0xa000000000000000, 0xa16bad3758efd873, 0xa2cc7edf592262d0, 0xa4231623369e78e6, 0xa570068e7ef5a1e8, #endif }; /* compute floor(a*b) or ceil(a*b) with b = log2(radix) or b=1/log2(radix). For is_inv = 0, strict accuracy is not guaranteed when radix is not a power of two. */ slimb_t bf_mul_log2_radix(slimb_t a1, unsigned int radix, int is_inv, int is_ceil1) { int is_neg; limb_t a; BOOL is_ceil; is_ceil = is_ceil1; a = a1; if (a1 < 0) { a = -a; is_neg = 1; } else { is_neg = 0; } is_ceil ^= is_neg; if ((radix & (radix - 1)) == 0) { int radix_bits; /* radix is a power of two */ radix_bits = ceil_log2(radix); if (is_inv) { if (is_ceil) a += radix_bits - 1; a = a / radix_bits; } else { a = a * radix_bits; } } else { const uint32_t *tab; limb_t b0, b1; dlimb_t t; if (is_inv) { tab = inv_log2_radix[radix - 2]; #if LIMB_BITS == 32 b1 = tab[0]; b0 = tab[1]; #else b1 = ((limb_t)tab[0] << 32) | tab[1]; b0 = (limb_t)tab[2] << 32; #endif t = (dlimb_t)b0 * (dlimb_t)a; t = (dlimb_t)b1 * (dlimb_t)a + (t >> LIMB_BITS); a = t >> (LIMB_BITS - 1); } else { b0 = log2_radix[radix - 2]; t = (dlimb_t)b0 * (dlimb_t)a; a = t >> (LIMB_BITS - 3); } /* a = floor(result) and 'result' cannot be an integer */ a += is_ceil; } if (is_neg) a = -a; return a; } /* 'n' is the number of output limbs */ static int bf_integer_to_radix_rec(bf_t *pow_tab, limb_t *out, const bf_t *a, limb_t n, int level, limb_t n0, limb_t radixl, unsigned int radixl_bits) { limb_t n1, n2, q_prec; int ret; assert(n >= 1); if (n == 1) { out[0] = get_bits(a->tab, a->len, a->len * LIMB_BITS - a->expn); } else if (n == 2) { dlimb_t t; slimb_t pos; pos = a->len * LIMB_BITS - a->expn; t = ((dlimb_t)get_bits(a->tab, a->len, pos + LIMB_BITS) << LIMB_BITS) | get_bits(a->tab, a->len, pos); if (likely(radixl == RADIXL_10)) { /* use division by a constant when possible */ out[0] = t % RADIXL_10; out[1] = t / RADIXL_10; } else { out[0] = t % radixl; out[1] = t / radixl; } } else { bf_t Q, R, *B, *B_inv; int q_add; bf_init(a->ctx, &Q); bf_init(a->ctx, &R); n2 = (((n0 * 2) >> (level + 1)) + 1) / 2; n1 = n - n2; B = &pow_tab[2 * level]; B_inv = &pow_tab[2 * level + 1]; ret = 0; if (B->len == 0) { /* compute BASE^n2 */ ret |= bf_pow_ui_ui(B, radixl, n2, BF_PREC_INF, BF_RNDZ); /* we use enough bits for the maximum possible 'n1' value, i.e. n2 + 1 */ ret |= bf_set_ui(&R, 1); ret |= bf_div(B_inv, &R, B, (n2 + 1) * radixl_bits + 2, BF_RNDN); } // printf("%d: n1=% " PRId64 " n2=%" PRId64 "\n", level, n1, n2); q_prec = n1 * radixl_bits; ret |= bf_mul(&Q, a, B_inv, q_prec, BF_RNDN); ret |= bf_rint(&Q, BF_RNDZ); ret |= bf_mul(&R, &Q, B, BF_PREC_INF, BF_RNDZ); ret |= bf_sub(&R, a, &R, BF_PREC_INF, BF_RNDZ); if (ret & BF_ST_MEM_ERROR) goto fail; /* adjust if necessary */ q_add = 0; while (R.sign && R.len != 0) { if (bf_add(&R, &R, B, BF_PREC_INF, BF_RNDZ)) goto fail; q_add--; } while (bf_cmpu(&R, B) >= 0) { if (bf_sub(&R, &R, B, BF_PREC_INF, BF_RNDZ)) goto fail; q_add++; } if (q_add != 0) { if (bf_add_si(&Q, &Q, q_add, BF_PREC_INF, BF_RNDZ)) goto fail; } if (bf_integer_to_radix_rec(pow_tab, out + n2, &Q, n1, level + 1, n0, radixl, radixl_bits)) goto fail; if (bf_integer_to_radix_rec(pow_tab, out, &R, n2, level + 1, n0, radixl, radixl_bits)) { fail: bf_delete(&Q); bf_delete(&R); return -1; } bf_delete(&Q); bf_delete(&R); } return 0; } /* return 0 if OK != 0 if memory error */ static int bf_integer_to_radix(bf_t *r, const bf_t *a, limb_t radixl) { bf_context_t *s = r->ctx; limb_t r_len; bf_t *pow_tab; int i, pow_tab_len, ret; r_len = r->len; pow_tab_len = (ceil_log2(r_len) + 2) * 2; /* XXX: check */ pow_tab = bf_malloc(s, sizeof(pow_tab[0]) * pow_tab_len); if (!pow_tab) return -1; for(i = 0; i < pow_tab_len; i++) bf_init(r->ctx, &pow_tab[i]); ret = bf_integer_to_radix_rec(pow_tab, r->tab, a, r_len, 0, r_len, radixl, ceil_log2(radixl)); for(i = 0; i < pow_tab_len; i++) { bf_delete(&pow_tab[i]); } bf_free(s, pow_tab); return ret; } /* a must be >= 0. 'P' is the wanted number of digits in radix 'radix'. 'r' is the mantissa represented as an integer. *pE contains the exponent. Return != 0 if memory error. */ static int bf_convert_to_radix(bf_t *r, slimb_t *pE, const bf_t *a, int radix, limb_t P, bf_rnd_t rnd_mode, BOOL is_fixed_exponent) { slimb_t E, e, prec, extra_bits, ziv_extra_bits, prec0; bf_t B_s, *B = &B_s; int e_sign, ret, res; if (a->len == 0) { /* zero case */ *pE = 0; return bf_set(r, a); } if (is_fixed_exponent) { E = *pE; } else { /* compute the new exponent */ E = 1 + bf_mul_log2_radix(a->expn - 1, radix, TRUE, FALSE); } // bf_print_str("a", a); // printf("E=%ld P=%ld radix=%d\n", E, P, radix); for(;;) { e = P - E; e_sign = 0; if (e < 0) { e = -e; e_sign = 1; } /* Note: precision for log2(radix) is not critical here */ prec0 = bf_mul_log2_radix(P, radix, FALSE, TRUE); ziv_extra_bits = 16; for(;;) { prec = prec0 + ziv_extra_bits; /* XXX: rigorous error analysis needed */ extra_bits = ceil_log2(e) * 2 + 1; ret = bf_pow_ui_ui(r, radix, e, prec + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP); if (!e_sign) ret |= bf_mul(r, r, a, prec + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP); else ret |= bf_div(r, a, r, prec + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP); if (ret & BF_ST_MEM_ERROR) return BF_ST_MEM_ERROR; /* if the result is not exact, check that it can be safely rounded to an integer */ if ((ret & BF_ST_INEXACT) && !bf_can_round(r, r->expn, rnd_mode, prec)) { /* and more precision and retry */ ziv_extra_bits = ziv_extra_bits + (ziv_extra_bits / 2); continue; } else { ret = bf_rint(r, rnd_mode); if (ret & BF_ST_MEM_ERROR) return BF_ST_MEM_ERROR; break; } } if (is_fixed_exponent) break; /* check that the result is < B^P */ /* XXX: do a fast approximate test first ? */ bf_init(r->ctx, B); ret = bf_pow_ui_ui(B, radix, P, BF_PREC_INF, BF_RNDZ); if (ret) { bf_delete(B); return ret; } res = bf_cmpu(r, B); bf_delete(B); if (res < 0) break; /* try a larger exponent */ E++; } *pE = E; return 0; } static void limb_to_a(char *buf, limb_t n, unsigned int radix, int len) { int digit, i; if (radix == 10) { /* specific case with constant divisor */ for(i = len - 1; i >= 0; i--) { digit = (limb_t)n % 10; n = (limb_t)n / 10; buf[i] = digit + '0'; } } else { for(i = len - 1; i >= 0; i--) { digit = (limb_t)n % radix; n = (limb_t)n / radix; if (digit < 10) digit += '0'; else digit += 'a' - 10; buf[i] = digit; } } } /* for power of 2 radixes */ static void limb_to_a2(char *buf, limb_t n, unsigned int radix_bits, int len) { int digit, i; unsigned int mask; mask = (1 << radix_bits) - 1; for(i = len - 1; i >= 0; i--) { digit = n & mask; n >>= radix_bits; if (digit < 10) digit += '0'; else digit += 'a' - 10; buf[i] = digit; } } /* 'a' must be an integer if the is_dec = FALSE or if the radix is not a power of two. A dot is added before the 'dot_pos' digit. dot_pos = n_digits does not display the dot. 0 <= dot_pos <= n_digits. n_digits >= 1. */ static void output_digits(DynBuf *s, const bf_t *a1, int radix, limb_t n_digits, limb_t dot_pos, BOOL is_dec) { limb_t i, v, l; slimb_t pos, pos_incr; int digits_per_limb, buf_pos, radix_bits, first_buf_pos; char buf[65]; bf_t a_s, *a; if (is_dec) { digits_per_limb = LIMB_DIGITS; a = (bf_t *)a1; radix_bits = 0; pos = a->len; pos_incr = 1; first_buf_pos = 0; } else if ((radix & (radix - 1)) == 0) { a = (bf_t *)a1; radix_bits = ceil_log2(radix); digits_per_limb = LIMB_BITS / radix_bits; pos_incr = digits_per_limb * radix_bits; /* digits are aligned relative to the radix point */ pos = a->len * LIMB_BITS + smod(-a->expn, radix_bits); first_buf_pos = 0; } else { limb_t n, radixl; digits_per_limb = digits_per_limb_table[radix - 2]; radixl = get_limb_radix(radix); a = &a_s; bf_init(a1->ctx, a); n = (n_digits + digits_per_limb - 1) / digits_per_limb; if (bf_resize(a, n)) { dbuf_set_error(s); goto done; } if (bf_integer_to_radix(a, a1, radixl)) { dbuf_set_error(s); goto done; } radix_bits = 0; pos = n; pos_incr = 1; first_buf_pos = pos * digits_per_limb - n_digits; } buf_pos = digits_per_limb; i = 0; while (i < n_digits) { if (buf_pos == digits_per_limb) { pos -= pos_incr; if (radix_bits == 0) { v = get_limbz(a, pos); limb_to_a(buf, v, radix, digits_per_limb); } else { v = get_bits(a->tab, a->len, pos); limb_to_a2(buf, v, radix_bits, digits_per_limb); } buf_pos = first_buf_pos; first_buf_pos = 0; } if (i < dot_pos) { l = dot_pos; } else { if (i == dot_pos) dbuf_putc(s, '.'); l = n_digits; } l = bf_min(digits_per_limb - buf_pos, l - i); dbuf_put(s, (uint8_t *)(buf + buf_pos), l); buf_pos += l; i += l; } done: if (a != a1) bf_delete(a); } static void *bf_dbuf_realloc(void *opaque, void *ptr, size_t size) { bf_context_t *s = opaque; return bf_realloc(s, ptr, size); } /* return the length in bytes. A trailing '\0' is added */ static char *bf_ftoa_internal(size_t *plen, const bf_t *a2, int radix, limb_t prec, bf_flags_t flags, BOOL is_dec) { bf_context_t *ctx = a2->ctx; DynBuf s_s, *s = &s_s; int radix_bits; // bf_print_str("ftoa", a2); // printf("radix=%d\n", radix); dbuf_init2(s, ctx, bf_dbuf_realloc); if (a2->expn == BF_EXP_NAN) { dbuf_putstr(s, "NaN"); } else { if (a2->sign) dbuf_putc(s, '-'); if (a2->expn == BF_EXP_INF) { if (flags & BF_FTOA_JS_QUIRKS) dbuf_putstr(s, "Infinity"); else dbuf_putstr(s, "Inf"); } else { int fmt, ret; slimb_t n_digits, n, i, n_max, n1; bf_t a1_s, *a1 = &a1_s; if ((radix & (radix - 1)) != 0) radix_bits = 0; else radix_bits = ceil_log2(radix); fmt = flags & BF_FTOA_FORMAT_MASK; bf_init(ctx, a1); if (fmt == BF_FTOA_FORMAT_FRAC) { if (is_dec || radix_bits != 0) { if (bf_set(a1, a2)) goto fail1; #ifdef USE_BF_DEC if (is_dec) { if (bfdec_round((bfdec_t *)a1, prec, (flags & BF_RND_MASK) | BF_FLAG_RADPNT_PREC) & BF_ST_MEM_ERROR) goto fail1; n = a1->expn; } else #endif { if (bf_round(a1, prec * radix_bits, (flags & BF_RND_MASK) | BF_FLAG_RADPNT_PREC) & BF_ST_MEM_ERROR) goto fail1; n = ceil_div(a1->expn, radix_bits); } if (flags & BF_FTOA_ADD_PREFIX) { if (radix == 16) dbuf_putstr(s, "0x"); else if (radix == 8) dbuf_putstr(s, "0o"); else if (radix == 2) dbuf_putstr(s, "0b"); } if (a1->expn == BF_EXP_ZERO) { dbuf_putstr(s, "0"); if (prec > 0) { dbuf_putstr(s, "."); for(i = 0; i < prec; i++) { dbuf_putc(s, '0'); } } } else { n_digits = prec + n; if (n <= 0) { /* 0.x */ dbuf_putstr(s, "0."); for(i = 0; i < -n; i++) { dbuf_putc(s, '0'); } if (n_digits > 0) { output_digits(s, a1, radix, n_digits, n_digits, is_dec); } } else { output_digits(s, a1, radix, n_digits, n, is_dec); } } } else { size_t pos, start; bf_t a_s, *a = &a_s; /* make a positive number */ a->tab = a2->tab; a->len = a2->len; a->expn = a2->expn; a->sign = 0; /* one more digit for the rounding */ n = 1 + bf_mul_log2_radix(bf_max(a->expn, 0), radix, TRUE, TRUE); n_digits = n + prec; n1 = n; if (bf_convert_to_radix(a1, &n1, a, radix, n_digits, flags & BF_RND_MASK, TRUE)) goto fail1; start = s->size; output_digits(s, a1, radix, n_digits, n, is_dec); /* remove leading zeros because we allocated one more digit */ pos = start; while ((pos + 1) < s->size && s->buf[pos] == '0' && s->buf[pos + 1] != '.') pos++; if (pos > start) { memmove(s->buf + start, s->buf + pos, s->size - pos); s->size -= (pos - start); } } } else { #ifdef USE_BF_DEC if (is_dec) { if (bf_set(a1, a2)) goto fail1; if (fmt == BF_FTOA_FORMAT_FIXED) { n_digits = prec; n_max = n_digits; if (bfdec_round((bfdec_t *)a1, prec, (flags & BF_RND_MASK)) & BF_ST_MEM_ERROR) goto fail1; } else { /* prec is ignored */ prec = n_digits = a1->len * LIMB_DIGITS; /* remove the trailing zero digits */ while (n_digits > 1 && get_digit(a1->tab, a1->len, prec - n_digits) == 0) { n_digits--; } n_max = n_digits + 4; } n = a1->expn; } else #endif if (radix_bits != 0) { if (bf_set(a1, a2)) goto fail1; if (fmt == BF_FTOA_FORMAT_FIXED) { slimb_t prec_bits; n_digits = prec; n_max = n_digits; /* align to the radix point */ prec_bits = prec * radix_bits - smod(-a1->expn, radix_bits); if (bf_round(a1, prec_bits, (flags & BF_RND_MASK)) & BF_ST_MEM_ERROR) goto fail1; } else { limb_t digit_mask; slimb_t pos; /* position of the digit before the most significant digit in bits */ pos = a1->len * LIMB_BITS + smod(-a1->expn, radix_bits); n_digits = ceil_div(pos, radix_bits); /* remove the trailing zero digits */ digit_mask = ((limb_t)1 << radix_bits) - 1; while (n_digits > 1 && (get_bits(a1->tab, a1->len, pos - n_digits * radix_bits) & digit_mask) == 0) { n_digits--; } n_max = n_digits + 4; } n = ceil_div(a1->expn, radix_bits); } else { bf_t a_s, *a = &a_s; /* make a positive number */ a->tab = a2->tab; a->len = a2->len; a->expn = a2->expn; a->sign = 0; if (fmt == BF_FTOA_FORMAT_FIXED) { n_digits = prec; n_max = n_digits; } else { slimb_t n_digits_max, n_digits_min; assert(prec != BF_PREC_INF); n_digits = 1 + bf_mul_log2_radix(prec, radix, TRUE, TRUE); /* max number of digits for non exponential notation. The rational is to have the same rule as JS i.e. n_max = 21 for 64 bit float in base 10. */ n_max = n_digits + 4; if (fmt == BF_FTOA_FORMAT_FREE_MIN) { bf_t b_s, *b = &b_s; /* find the minimum number of digits by dichotomy. */ /* XXX: inefficient */ n_digits_max = n_digits; n_digits_min = 1; bf_init(ctx, b); while (n_digits_min < n_digits_max) { n_digits = (n_digits_min + n_digits_max) / 2; if (bf_convert_to_radix(a1, &n, a, radix, n_digits, flags & BF_RND_MASK, FALSE)) { bf_delete(b); goto fail1; } /* convert back to a number and compare */ ret = bf_mul_pow_radix(b, a1, radix, n - n_digits, prec, (flags & ~BF_RND_MASK) | BF_RNDN); if (ret & BF_ST_MEM_ERROR) { bf_delete(b); goto fail1; } if (bf_cmpu(b, a) == 0) { n_digits_max = n_digits; } else { n_digits_min = n_digits + 1; } } bf_delete(b); n_digits = n_digits_max; } } if (bf_convert_to_radix(a1, &n, a, radix, n_digits, flags & BF_RND_MASK, FALSE)) { fail1: bf_delete(a1); goto fail; } } if (a1->expn == BF_EXP_ZERO && fmt != BF_FTOA_FORMAT_FIXED && !(flags & BF_FTOA_FORCE_EXP)) { /* just output zero */ dbuf_putstr(s, "0"); } else { if (flags & BF_FTOA_ADD_PREFIX) { if (radix == 16) dbuf_putstr(s, "0x"); else if (radix == 8) dbuf_putstr(s, "0o"); else if (radix == 2) dbuf_putstr(s, "0b"); } if (a1->expn == BF_EXP_ZERO) n = 1; if ((flags & BF_FTOA_FORCE_EXP) || n <= -6 || n > n_max) { const char *fmt; /* exponential notation */ output_digits(s, a1, radix, n_digits, 1, is_dec); if (radix_bits != 0 && radix <= 16) { if (flags & BF_FTOA_JS_QUIRKS) fmt = "p%+" PRId_LIMB; else fmt = "p%" PRId_LIMB; dbuf_printf(s, fmt, (n - 1) * radix_bits); } else { if (flags & BF_FTOA_JS_QUIRKS) fmt = "%c%+" PRId_LIMB; else fmt = "%c%" PRId_LIMB; dbuf_printf(s, fmt, radix <= 10 ? 'e' : '@', n - 1); } } else if (n <= 0) { /* 0.x */ dbuf_putstr(s, "0."); for(i = 0; i < -n; i++) { dbuf_putc(s, '0'); } output_digits(s, a1, radix, n_digits, n_digits, is_dec); } else { if (n_digits <= n) { /* no dot */ output_digits(s, a1, radix, n_digits, n_digits, is_dec); for(i = 0; i < (n - n_digits); i++) dbuf_putc(s, '0'); } else { output_digits(s, a1, radix, n_digits, n, is_dec); } } } } bf_delete(a1); } } dbuf_putc(s, '\0'); if (dbuf_error(s)) goto fail; if (plen) *plen = s->size - 1; return (char *)s->buf; fail: bf_free(ctx, s->buf); if (plen) *plen = 0; return NULL; } char *bf_ftoa(size_t *plen, const bf_t *a, int radix, limb_t prec, bf_flags_t flags) { return bf_ftoa_internal(plen, a, radix, prec, flags, FALSE); } /***************************************************************/ /* transcendental functions */ /* Note: the algorithm is from MPFR */ static void bf_const_log2_rec(bf_t *T, bf_t *P, bf_t *Q, limb_t n1, limb_t n2, BOOL need_P) { bf_context_t *s = T->ctx; if ((n2 - n1) == 1) { if (n1 == 0) { bf_set_ui(P, 3); } else { bf_set_ui(P, n1); P->sign = 1; } bf_set_ui(Q, 2 * n1 + 1); Q->expn += 2; bf_set(T, P); } else { limb_t m; bf_t T1_s, *T1 = &T1_s; bf_t P1_s, *P1 = &P1_s; bf_t Q1_s, *Q1 = &Q1_s; m = n1 + ((n2 - n1) >> 1); bf_const_log2_rec(T, P, Q, n1, m, TRUE); bf_init(s, T1); bf_init(s, P1); bf_init(s, Q1); bf_const_log2_rec(T1, P1, Q1, m, n2, need_P); bf_mul(T, T, Q1, BF_PREC_INF, BF_RNDZ); bf_mul(T1, T1, P, BF_PREC_INF, BF_RNDZ); bf_add(T, T, T1, BF_PREC_INF, BF_RNDZ); if (need_P) bf_mul(P, P, P1, BF_PREC_INF, BF_RNDZ); bf_mul(Q, Q, Q1, BF_PREC_INF, BF_RNDZ); bf_delete(T1); bf_delete(P1); bf_delete(Q1); } } /* compute log(2) with faithful rounding at precision 'prec' */ static void bf_const_log2_internal(bf_t *T, limb_t prec) { limb_t w, N; bf_t P_s, *P = &P_s; bf_t Q_s, *Q = &Q_s; w = prec + 15; N = w / 3 + 1; bf_init(T->ctx, P); bf_init(T->ctx, Q); bf_const_log2_rec(T, P, Q, 0, N, FALSE); bf_div(T, T, Q, prec, BF_RNDN); bf_delete(P); bf_delete(Q); } /* PI constant */ #define CHUD_A 13591409 #define CHUD_B 545140134 #define CHUD_C 640320 #define CHUD_BITS_PER_TERM 47 static void chud_bs(bf_t *P, bf_t *Q, bf_t *G, int64_t a, int64_t b, int need_g, limb_t prec) { bf_context_t *s = P->ctx; int64_t c; if (a == (b - 1)) { bf_t T0, T1; bf_init(s, &T0); bf_init(s, &T1); bf_set_ui(G, 2 * b - 1); bf_mul_ui(G, G, 6 * b - 1, prec, BF_RNDN); bf_mul_ui(G, G, 6 * b - 5, prec, BF_RNDN); bf_set_ui(&T0, CHUD_B); bf_mul_ui(&T0, &T0, b, prec, BF_RNDN); bf_set_ui(&T1, CHUD_A); bf_add(&T0, &T0, &T1, prec, BF_RNDN); bf_mul(P, G, &T0, prec, BF_RNDN); P->sign = b & 1; bf_set_ui(Q, b); bf_mul_ui(Q, Q, b, prec, BF_RNDN); bf_mul_ui(Q, Q, b, prec, BF_RNDN); bf_mul_ui(Q, Q, (uint64_t)CHUD_C * CHUD_C * CHUD_C / 24, prec, BF_RNDN); bf_delete(&T0); bf_delete(&T1); } else { bf_t P2, Q2, G2; bf_init(s, &P2); bf_init(s, &Q2); bf_init(s, &G2); c = (a + b) / 2; chud_bs(P, Q, G, a, c, 1, prec); chud_bs(&P2, &Q2, &G2, c, b, need_g, prec); /* Q = Q1 * Q2 */ /* G = G1 * G2 */ /* P = P1 * Q2 + P2 * G1 */ bf_mul(&P2, &P2, G, prec, BF_RNDN); if (!need_g) bf_set_ui(G, 0); bf_mul(P, P, &Q2, prec, BF_RNDN); bf_add(P, P, &P2, prec, BF_RNDN); bf_delete(&P2); bf_mul(Q, Q, &Q2, prec, BF_RNDN); bf_delete(&Q2); if (need_g) bf_mul(G, G, &G2, prec, BF_RNDN); bf_delete(&G2); } } /* compute Pi with faithful rounding at precision 'prec' using the Chudnovsky formula */ static void bf_const_pi_internal(bf_t *Q, limb_t prec) { bf_context_t *s = Q->ctx; int64_t n, prec1; bf_t P, G; /* number of serie terms */ n = prec / CHUD_BITS_PER_TERM + 1; /* XXX: precision analysis */ prec1 = prec + 32; bf_init(s, &P); bf_init(s, &G); chud_bs(&P, Q, &G, 0, n, 0, BF_PREC_INF); bf_mul_ui(&G, Q, CHUD_A, prec1, BF_RNDN); bf_add(&P, &G, &P, prec1, BF_RNDN); bf_div(Q, Q, &P, prec1, BF_RNDF); bf_set_ui(&P, CHUD_C); bf_sqrt(&G, &P, prec1, BF_RNDF); bf_mul_ui(&G, &G, (uint64_t)CHUD_C / 12, prec1, BF_RNDF); bf_mul(Q, Q, &G, prec, BF_RNDN); bf_delete(&P); bf_delete(&G); } static int bf_const_get(bf_t *T, limb_t prec, bf_flags_t flags, BFConstCache *c, void (*func)(bf_t *res, limb_t prec), int sign) { limb_t ziv_extra_bits, prec1; ziv_extra_bits = 32; for(;;) { prec1 = prec + ziv_extra_bits; if (c->prec < prec1) { if (c->val.len == 0) bf_init(T->ctx, &c->val); func(&c->val, prec1); c->prec = prec1; } else { prec1 = c->prec; } bf_set(T, &c->val); T->sign = sign; if (!bf_can_round(T, prec, flags & BF_RND_MASK, prec1)) { /* and more precision and retry */ ziv_extra_bits = ziv_extra_bits + (ziv_extra_bits / 2); } else { break; } } return bf_round(T, prec, flags); } static void bf_const_free(BFConstCache *c) { bf_delete(&c->val); memset(c, 0, sizeof(*c)); } int bf_const_log2(bf_t *T, limb_t prec, bf_flags_t flags) { bf_context_t *s = T->ctx; return bf_const_get(T, prec, flags, &s->log2_cache, bf_const_log2_internal, 0); } /* return rounded pi * (1 - 2 * sign) */ static int bf_const_pi_signed(bf_t *T, int sign, limb_t prec, bf_flags_t flags) { bf_context_t *s = T->ctx; return bf_const_get(T, prec, flags, &s->pi_cache, bf_const_pi_internal, sign); } int bf_const_pi(bf_t *T, limb_t prec, bf_flags_t flags) { return bf_const_pi_signed(T, 0, prec, flags); } void bf_clear_cache(bf_context_t *s) { #ifdef USE_FFT_MUL fft_clear_cache(s); #endif bf_const_free(&s->log2_cache); bf_const_free(&s->pi_cache); } /* ZivFunc should compute the result 'r' with faithful rounding at precision 'prec'. For efficiency purposes, the final bf_round() does not need to be done in the function. */ typedef int ZivFunc(bf_t *r, const bf_t *a, limb_t prec, void *opaque); static int bf_ziv_rounding(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags, ZivFunc *f, void *opaque) { int rnd_mode, ret; slimb_t prec1, ziv_extra_bits; rnd_mode = flags & BF_RND_MASK; if (rnd_mode == BF_RNDF) { /* no need to iterate */ f(r, a, prec, opaque); ret = 0; } else { ziv_extra_bits = 32; for(;;) { prec1 = prec + ziv_extra_bits; ret = f(r, a, prec1, opaque); if (ret & (BF_ST_OVERFLOW | BF_ST_UNDERFLOW | BF_ST_MEM_ERROR)) { /* overflow or underflow should never happen because it indicates the rounding cannot be done correctly, but we do not catch all the cases */ return ret; } /* if the result is exact, we can stop */ if (!(ret & BF_ST_INEXACT)) { ret = 0; break; } if (bf_can_round(r, prec, rnd_mode, prec1)) { ret = BF_ST_INEXACT; break; } ziv_extra_bits = ziv_extra_bits * 2; // printf("ziv_extra_bits=%" PRId64 "\n", (int64_t)ziv_extra_bits); } } if (r->len == 0) return ret; else return __bf_round(r, prec, flags, r->len, ret); } /* add (1 - 2*e_sign) * 2^e */ static int bf_add_epsilon(bf_t *r, const bf_t *a, slimb_t e, int e_sign, limb_t prec, int flags) { bf_t T_s, *T = &T_s; int ret; /* small argument case: result = 1 + epsilon * sign(x) */ bf_init(a->ctx, T); bf_set_ui(T, 1); T->sign = e_sign; T->expn += e; ret = bf_add(r, r, T, prec, flags); bf_delete(T); return ret; } /* Compute the exponential using faithful rounding at precision 'prec'. Note: the algorithm is from MPFR */ static int bf_exp_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) { bf_context_t *s = r->ctx; bf_t T_s, *T = &T_s; slimb_t n, K, l, i, prec1; assert(r != a); /* argument reduction: T = a - n*log(2) with 0 <= T < log(2) and n integer. */ bf_init(s, T); if (a->expn <= -1) { /* 0 <= abs(a) <= 0.5 */ if (a->sign) n = -1; else n = 0; } else { bf_const_log2(T, LIMB_BITS, BF_RNDZ); bf_div(T, a, T, LIMB_BITS, BF_RNDD); bf_get_limb(&n, T, 0); } K = bf_isqrt((prec + 1) / 2); l = (prec - 1) / K + 1; /* XXX: precision analysis ? */ prec1 = prec + (K + 2 * l + 18) + K + 8; if (a->expn > 0) prec1 += a->expn; // printf("n=%ld K=%ld prec1=%ld\n", n, K, prec1); bf_const_log2(T, prec1, BF_RNDF); bf_mul_si(T, T, n, prec1, BF_RNDN); bf_sub(T, a, T, prec1, BF_RNDN); /* reduce the range of T */ bf_mul_2exp(T, -K, BF_PREC_INF, BF_RNDZ); /* Taylor expansion around zero : 1 + x + x^2/2 + ... + x^n/n! = (1 + x * (1 + x/2 * (1 + ... (x/n)))) */ { bf_t U_s, *U = &U_s; bf_init(s, U); bf_set_ui(r, 1); for(i = l ; i >= 1; i--) { bf_set_ui(U, i); bf_div(U, T, U, prec1, BF_RNDN); bf_mul(r, r, U, prec1, BF_RNDN); bf_add_si(r, r, 1, prec1, BF_RNDN); } bf_delete(U); } bf_delete(T); /* undo the range reduction */ for(i = 0; i < K; i++) { bf_mul(r, r, r, prec1, BF_RNDN | BF_FLAG_EXT_EXP); } /* undo the argument reduction */ bf_mul_2exp(r, n, BF_PREC_INF, BF_RNDZ | BF_FLAG_EXT_EXP); return BF_ST_INEXACT; } /* crude overflow and underflow tests for exp(a). a_low <= a <= a_high */ static int check_exp_underflow_overflow(bf_context_t *s, bf_t *r, const bf_t *a_low, const bf_t *a_high, limb_t prec, bf_flags_t flags) { bf_t T_s, *T = &T_s; bf_t log2_s, *log2 = &log2_s; slimb_t e_min, e_max; if (a_high->expn <= 0) return 0; e_max = (limb_t)1 << (bf_get_exp_bits(flags) - 1); e_min = -e_max + 3; if (flags & BF_FLAG_SUBNORMAL) e_min -= (prec - 1); bf_init(s, T); bf_init(s, log2); bf_const_log2(log2, LIMB_BITS, BF_RNDU); bf_mul_ui(T, log2, e_max, LIMB_BITS, BF_RNDU); /* a_low > e_max * log(2) implies exp(a) > e_max */ if (bf_cmp_lt(T, a_low) > 0) { /* overflow */ bf_delete(T); bf_delete(log2); return bf_set_overflow(r, 0, prec, flags); } /* a_high < (e_min - 2) * log(2) implies exp(a) < (e_min - 2) */ bf_const_log2(log2, LIMB_BITS, BF_RNDD); bf_mul_si(T, log2, e_min - 2, LIMB_BITS, BF_RNDD); if (bf_cmp_lt(a_high, T)) { int rnd_mode = flags & BF_RND_MASK; /* underflow */ bf_delete(T); bf_delete(log2); if (rnd_mode == BF_RNDU) { /* set the smallest value */ bf_set_ui(r, 1); r->expn = e_min; } else { bf_set_zero(r, 0); } return BF_ST_UNDERFLOW | BF_ST_INEXACT; } bf_delete(log2); bf_delete(T); return 0; } int bf_exp(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) { bf_context_t *s = r->ctx; int ret; assert(r != a); if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bf_set_nan(r); } else if (a->expn == BF_EXP_INF) { if (a->sign) bf_set_zero(r, 0); else bf_set_inf(r, 0); } else { bf_set_ui(r, 1); } return 0; } ret = check_exp_underflow_overflow(s, r, a, a, prec, flags); if (ret) return ret; if (a->expn < 0 && (-a->expn) >= (prec + 2)) { /* small argument case: result = 1 + epsilon * sign(x) */ bf_set_ui(r, 1); return bf_add_epsilon(r, r, -(prec + 2), a->sign, prec, flags); } return bf_ziv_rounding(r, a, prec, flags, bf_exp_internal, NULL); } static int bf_log_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) { bf_context_t *s = r->ctx; bf_t T_s, *T = &T_s; bf_t U_s, *U = &U_s; bf_t V_s, *V = &V_s; slimb_t n, prec1, l, i, K; assert(r != a); bf_init(s, T); /* argument reduction 1 */ /* T=a*2^n with 2/3 <= T <= 4/3 */ { bf_t U_s, *U = &U_s; bf_set(T, a); n = T->expn; T->expn = 0; /* U= ~ 2/3 */ bf_init(s, U); bf_set_ui(U, 0xaaaaaaaa); U->expn = 0; if (bf_cmp_lt(T, U)) { T->expn++; n--; } bf_delete(U); } // printf("n=%ld\n", n); // bf_print_str("T", T); /* XXX: precision analysis */ /* number of iterations for argument reduction 2 */ K = bf_isqrt((prec + 1) / 2); /* order of Taylor expansion */ l = prec / (2 * K) + 1; /* precision of the intermediate computations */ prec1 = prec + K + 2 * l + 32; bf_init(s, U); bf_init(s, V); /* Note: cancellation occurs here, so we use more precision (XXX: reduce the precision by computing the exact cancellation) */ bf_add_si(T, T, -1, BF_PREC_INF, BF_RNDN); /* argument reduction 2 */ for(i = 0; i < K; i++) { /* T = T / (1 + sqrt(1 + T)) */ bf_add_si(U, T, 1, prec1, BF_RNDN); bf_sqrt(V, U, prec1, BF_RNDF); bf_add_si(U, V, 1, prec1, BF_RNDN); bf_div(T, T, U, prec1, BF_RNDN); } { bf_t Y_s, *Y = &Y_s; bf_t Y2_s, *Y2 = &Y2_s; bf_init(s, Y); bf_init(s, Y2); /* compute ln(1+x) = ln((1+y)/(1-y)) with y=x/(2+x) = y + y^3/3 + ... + y^(2*l + 1) / (2*l+1) with Y=Y^2 = y*(1+Y/3+Y^2/5+...) = y*(1+Y*(1/3+Y*(1/5 + ...))) */ bf_add_si(Y, T, 2, prec1, BF_RNDN); bf_div(Y, T, Y, prec1, BF_RNDN); bf_mul(Y2, Y, Y, prec1, BF_RNDN); bf_set_ui(r, 0); for(i = l; i >= 1; i--) { bf_set_ui(U, 1); bf_set_ui(V, 2 * i + 1); bf_div(U, U, V, prec1, BF_RNDN); bf_add(r, r, U, prec1, BF_RNDN); bf_mul(r, r, Y2, prec1, BF_RNDN); } bf_add_si(r, r, 1, prec1, BF_RNDN); bf_mul(r, r, Y, prec1, BF_RNDN); bf_delete(Y); bf_delete(Y2); } bf_delete(V); bf_delete(U); /* multiplication by 2 for the Taylor expansion and undo the argument reduction 2*/ bf_mul_2exp(r, K + 1, BF_PREC_INF, BF_RNDZ); /* undo the argument reduction 1 */ bf_const_log2(T, prec1, BF_RNDF); bf_mul_si(T, T, n, prec1, BF_RNDN); bf_add(r, r, T, prec1, BF_RNDN); bf_delete(T); return BF_ST_INEXACT; } int bf_log(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) { bf_context_t *s = r->ctx; bf_t T_s, *T = &T_s; assert(r != a); if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bf_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF) { if (a->sign) { bf_set_nan(r); return BF_ST_INVALID_OP; } else { bf_set_inf(r, 0); return 0; } } else { bf_set_inf(r, 1); return 0; } } if (a->sign) { bf_set_nan(r); return BF_ST_INVALID_OP; } bf_init(s, T); bf_set_ui(T, 1); if (bf_cmp_eq(a, T)) { bf_set_zero(r, 0); bf_delete(T); return 0; } bf_delete(T); return bf_ziv_rounding(r, a, prec, flags, bf_log_internal, NULL); } /* x and y finite and x > 0 */ static int bf_pow_generic(bf_t *r, const bf_t *x, limb_t prec, void *opaque) { bf_context_t *s = r->ctx; const bf_t *y = opaque; bf_t T_s, *T = &T_s; limb_t prec1; bf_init(s, T); /* XXX: proof for the added precision */ prec1 = prec + 32; bf_log(T, x, prec1, BF_RNDF | BF_FLAG_EXT_EXP); bf_mul(T, T, y, prec1, BF_RNDF | BF_FLAG_EXT_EXP); if (bf_is_nan(T)) bf_set_nan(r); else bf_exp_internal(r, T, prec1, NULL); /* no overflow/underlow test needed */ bf_delete(T); return BF_ST_INEXACT; } /* x and y finite, x > 0, y integer and y fits on one limb */ static int bf_pow_int(bf_t *r, const bf_t *x, limb_t prec, void *opaque) { bf_context_t *s = r->ctx; const bf_t *y = opaque; bf_t T_s, *T = &T_s; limb_t prec1; int ret; slimb_t y1; bf_get_limb(&y1, y, 0); if (y1 < 0) y1 = -y1; /* XXX: proof for the added precision */ prec1 = prec + ceil_log2(y1) * 2 + 8; ret = bf_pow_ui(r, x, y1 < 0 ? -y1 : y1, prec1, BF_RNDN | BF_FLAG_EXT_EXP); if (y->sign) { bf_init(s, T); bf_set_ui(T, 1); ret |= bf_div(r, T, r, prec1, BF_RNDN | BF_FLAG_EXT_EXP); bf_delete(T); } return ret; } /* x must be a finite non zero float. Return TRUE if there is a floating point number r such as x=r^(2^n) and return this floating point number 'r'. Otherwise return FALSE and r is undefined. */ static BOOL check_exact_power2n(bf_t *r, const bf_t *x, slimb_t n) { bf_context_t *s = r->ctx; bf_t T_s, *T = &T_s; slimb_t e, i, er; limb_t v; /* x = m*2^e with m odd integer */ e = bf_get_exp_min(x); /* fast check on the exponent */ if (n > (LIMB_BITS - 1)) { if (e != 0) return FALSE; er = 0; } else { if ((e & (((limb_t)1 << n) - 1)) != 0) return FALSE; er = e >> n; } /* every perfect odd square = 1 modulo 8 */ v = get_bits(x->tab, x->len, x->len * LIMB_BITS - x->expn + e); if ((v & 7) != 1) return FALSE; bf_init(s, T); bf_set(T, x); T->expn -= e; for(i = 0; i < n; i++) { if (i != 0) bf_set(T, r); if (bf_sqrtrem(r, NULL, T) != 0) return FALSE; } r->expn += er; return TRUE; } /* prec = BF_PREC_INF is accepted for x and y integers and y >= 0 */ int bf_pow(bf_t *r, const bf_t *x, const bf_t *y, limb_t prec, bf_flags_t flags) { bf_context_t *s = r->ctx; bf_t T_s, *T = &T_s; bf_t ytmp_s; BOOL y_is_int, y_is_odd; int r_sign, ret, rnd_mode; slimb_t y_emin; if (x->len == 0 || y->len == 0) { if (y->expn == BF_EXP_ZERO) { /* pow(x, 0) = 1 */ bf_set_ui(r, 1); } else if (x->expn == BF_EXP_NAN) { bf_set_nan(r); } else { int cmp_x_abs_1; bf_set_ui(r, 1); cmp_x_abs_1 = bf_cmpu(x, r); if (cmp_x_abs_1 == 0 && (flags & BF_POW_JS_QUIRKS) && (y->expn >= BF_EXP_INF)) { bf_set_nan(r); } else if (cmp_x_abs_1 == 0 && (!x->sign || y->expn != BF_EXP_NAN)) { /* pow(1, y) = 1 even if y = NaN */ /* pow(-1, +/-inf) = 1 */ } else if (y->expn == BF_EXP_NAN) { bf_set_nan(r); } else if (y->expn == BF_EXP_INF) { if (y->sign == (cmp_x_abs_1 > 0)) { bf_set_zero(r, 0); } else { bf_set_inf(r, 0); } } else { y_emin = bf_get_exp_min(y); y_is_odd = (y_emin == 0); if (y->sign == (x->expn == BF_EXP_ZERO)) { bf_set_inf(r, y_is_odd & x->sign); if (y->sign) { /* pow(0, y) with y < 0 */ return BF_ST_DIVIDE_ZERO; } } else { bf_set_zero(r, y_is_odd & x->sign); } } } return 0; } bf_init(s, T); bf_set(T, x); y_emin = bf_get_exp_min(y); y_is_int = (y_emin >= 0); rnd_mode = flags & BF_RND_MASK; if (x->sign) { if (!y_is_int) { bf_set_nan(r); bf_delete(T); return BF_ST_INVALID_OP; } y_is_odd = (y_emin == 0); r_sign = y_is_odd; /* change the directed rounding mode if the sign of the result is changed */ if (r_sign && (rnd_mode == BF_RNDD || rnd_mode == BF_RNDU)) flags ^= 1; bf_neg(T); } else { r_sign = 0; } bf_set_ui(r, 1); if (bf_cmp_eq(T, r)) { /* abs(x) = 1: nothing more to do */ ret = 0; } else { /* check the overflow/underflow cases */ { bf_t al_s, *al = &al_s; bf_t ah_s, *ah = &ah_s; limb_t precl = LIMB_BITS; bf_init(s, al); bf_init(s, ah); /* compute bounds of log(abs(x)) * y with a low precision */ /* XXX: compute bf_log() once */ /* XXX: add a fast test before this slow test */ bf_log(al, T, precl, BF_RNDD); bf_log(ah, T, precl, BF_RNDU); bf_mul(al, al, y, precl, BF_RNDD ^ y->sign); bf_mul(ah, ah, y, precl, BF_RNDU ^ y->sign); ret = check_exp_underflow_overflow(s, r, al, ah, prec, flags); bf_delete(al); bf_delete(ah); if (ret) goto done; } if (y_is_int) { slimb_t T_bits, e; int_pow: T_bits = T->expn - bf_get_exp_min(T); if (T_bits == 1) { /* pow(2^b, y) = 2^(b*y) */ bf_mul_si(T, y, T->expn - 1, LIMB_BITS, BF_RNDZ); bf_get_limb(&e, T, 0); bf_set_ui(r, 1); ret = bf_mul_2exp(r, e, prec, flags); } else if (prec == BF_PREC_INF) { slimb_t y1; /* specific case for infinite precision (integer case) */ bf_get_limb(&y1, y, 0); assert(!y->sign); /* x must be an integer, so abs(x) >= 2 */ if (y1 >= ((slimb_t)1 << BF_EXP_BITS_MAX)) { bf_delete(T); return bf_set_overflow(r, 0, BF_PREC_INF, flags); } ret = bf_pow_ui(r, T, y1, BF_PREC_INF, BF_RNDZ); } else { if (y->expn <= 31) { /* small enough power: use exponentiation in all cases */ } else if (y->sign) { /* cannot be exact */ goto general_case; } else { if (rnd_mode == BF_RNDF) goto general_case; /* no need to track exact results */ /* see if the result has a chance to be exact: if x=a*2^b (a odd), x^y=a^y*2^(b*y) x^y needs a precision of at least floor_log2(a)*y bits */ bf_mul_si(r, y, T_bits - 1, LIMB_BITS, BF_RNDZ); bf_get_limb(&e, r, 0); if (prec < e) goto general_case; } ret = bf_ziv_rounding(r, T, prec, flags, bf_pow_int, (void *)y); } } else { if (rnd_mode != BF_RNDF) { bf_t *y1; if (y_emin < 0 && check_exact_power2n(r, T, -y_emin)) { /* the problem is reduced to a power to an integer */ #if 0 printf("\nn=%" PRId64 "\n", -(int64_t)y_emin); bf_print_str("T", T); bf_print_str("r", r); #endif bf_set(T, r); y1 = &ytmp_s; y1->tab = y->tab; y1->len = y->len; y1->sign = y->sign; y1->expn = y->expn - y_emin; y = y1; goto int_pow; } } general_case: ret = bf_ziv_rounding(r, T, prec, flags, bf_pow_generic, (void *)y); } } done: bf_delete(T); r->sign = r_sign; return ret; } /* compute sqrt(-2*x-x^2) to get |sin(x)| from cos(x) - 1. */ static void bf_sqrt_sin(bf_t *r, const bf_t *x, limb_t prec1) { bf_context_t *s = r->ctx; bf_t T_s, *T = &T_s; bf_init(s, T); bf_set(T, x); bf_mul(r, T, T, prec1, BF_RNDN); bf_mul_2exp(T, 1, BF_PREC_INF, BF_RNDZ); bf_add(T, T, r, prec1, BF_RNDN); bf_neg(T); bf_sqrt(r, T, prec1, BF_RNDF); bf_delete(T); } static int bf_sincos(bf_t *s, bf_t *c, const bf_t *a, limb_t prec) { bf_context_t *s1 = a->ctx; bf_t T_s, *T = &T_s; bf_t U_s, *U = &U_s; bf_t r_s, *r = &r_s; slimb_t K, prec1, i, l, mod, prec2; int is_neg; assert(c != a && s != a); bf_init(s1, T); bf_init(s1, U); bf_init(s1, r); /* XXX: precision analysis */ K = bf_isqrt(prec / 2); l = prec / (2 * K) + 1; prec1 = prec + 2 * K + l + 8; /* after the modulo reduction, -pi/4 <= T <= pi/4 */ if (a->expn <= -1) { /* abs(a) <= 0.25: no modulo reduction needed */ bf_set(T, a); mod = 0; } else { slimb_t cancel; cancel = 0; for(;;) { prec2 = prec1 + a->expn + cancel; bf_const_pi(U, prec2, BF_RNDF); bf_mul_2exp(U, -1, BF_PREC_INF, BF_RNDZ); bf_remquo(&mod, T, a, U, prec2, BF_RNDN, BF_RNDN); // printf("T.expn=%ld prec2=%ld\n", T->expn, prec2); if (mod == 0 || (T->expn != BF_EXP_ZERO && (T->expn + prec2) >= (prec1 - 1))) break; /* increase the number of bits until the precision is good enough */ cancel = bf_max(-T->expn, (cancel + 1) * 3 / 2); } mod &= 3; } is_neg = T->sign; /* compute cosm1(x) = cos(x) - 1 */ bf_mul(T, T, T, prec1, BF_RNDN); bf_mul_2exp(T, -2 * K, BF_PREC_INF, BF_RNDZ); /* Taylor expansion: -x^2/2 + x^4/4! - x^6/6! + ... */ bf_set_ui(r, 1); for(i = l ; i >= 1; i--) { bf_set_ui(U, 2 * i - 1); bf_mul_ui(U, U, 2 * i, BF_PREC_INF, BF_RNDZ); bf_div(U, T, U, prec1, BF_RNDN); bf_mul(r, r, U, prec1, BF_RNDN); bf_neg(r); if (i != 1) bf_add_si(r, r, 1, prec1, BF_RNDN); } bf_delete(U); /* undo argument reduction: cosm1(2*x)= 2*(2*cosm1(x)+cosm1(x)^2) */ for(i = 0; i < K; i++) { bf_mul(T, r, r, prec1, BF_RNDN); bf_mul_2exp(r, 1, BF_PREC_INF, BF_RNDZ); bf_add(r, r, T, prec1, BF_RNDN); bf_mul_2exp(r, 1, BF_PREC_INF, BF_RNDZ); } bf_delete(T); if (c) { if ((mod & 1) == 0) { bf_add_si(c, r, 1, prec1, BF_RNDN); } else { bf_sqrt_sin(c, r, prec1); c->sign = is_neg ^ 1; } c->sign ^= mod >> 1; } if (s) { if ((mod & 1) == 0) { bf_sqrt_sin(s, r, prec1); s->sign = is_neg; } else { bf_add_si(s, r, 1, prec1, BF_RNDN); } s->sign ^= mod >> 1; } bf_delete(r); return BF_ST_INEXACT; } static int bf_cos_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) { return bf_sincos(NULL, r, a, prec); } int bf_cos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) { if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bf_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF) { bf_set_nan(r); return BF_ST_INVALID_OP; } else { bf_set_ui(r, 1); return 0; } } /* small argument case: result = 1+r(x) with r(x) = -x^2/2 + O(X^4). We assume r(x) < 2^(2*EXP(x) - 1). */ if (a->expn < 0) { slimb_t e; e = 2 * a->expn - 1; if (e < -(prec + 2)) { bf_set_ui(r, 1); return bf_add_epsilon(r, r, e, 1, prec, flags); } } return bf_ziv_rounding(r, a, prec, flags, bf_cos_internal, NULL); } static int bf_sin_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) { return bf_sincos(r, NULL, a, prec); } int bf_sin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) { if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bf_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF) { bf_set_nan(r); return BF_ST_INVALID_OP; } else { bf_set_zero(r, a->sign); return 0; } } /* small argument case: result = x+r(x) with r(x) = -x^3/6 + O(X^5). We assume r(x) < 2^(3*EXP(x) - 2). */ if (a->expn < 0) { slimb_t e; e = sat_add(2 * a->expn, a->expn - 2); if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) { bf_set(r, a); return bf_add_epsilon(r, r, e, 1 - a->sign, prec, flags); } } return bf_ziv_rounding(r, a, prec, flags, bf_sin_internal, NULL); } static int bf_tan_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) { bf_context_t *s = r->ctx; bf_t T_s, *T = &T_s; limb_t prec1; /* XXX: precision analysis */ prec1 = prec + 8; bf_init(s, T); bf_sincos(r, T, a, prec1); bf_div(r, r, T, prec1, BF_RNDF); bf_delete(T); return BF_ST_INEXACT; } int bf_tan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) { assert(r != a); if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bf_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF) { bf_set_nan(r); return BF_ST_INVALID_OP; } else { bf_set_zero(r, a->sign); return 0; } } /* small argument case: result = x+r(x) with r(x) = x^3/3 + O(X^5). We assume r(x) < 2^(3*EXP(x) - 1). */ if (a->expn < 0) { slimb_t e; e = sat_add(2 * a->expn, a->expn - 1); if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) { bf_set(r, a); return bf_add_epsilon(r, r, e, a->sign, prec, flags); } } return bf_ziv_rounding(r, a, prec, flags, bf_tan_internal, NULL); } /* if add_pi2 is true, add pi/2 to the result (used for acos(x) to avoid cancellation) */ static int bf_atan_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) { bf_context_t *s = r->ctx; BOOL add_pi2 = (BOOL)(intptr_t)opaque; bf_t T_s, *T = &T_s; bf_t U_s, *U = &U_s; bf_t V_s, *V = &V_s; bf_t X2_s, *X2 = &X2_s; int cmp_1; slimb_t prec1, i, K, l; /* XXX: precision analysis */ K = bf_isqrt((prec + 1) / 2); l = prec / (2 * K) + 1; prec1 = prec + K + 2 * l + 32; // printf("prec=%d K=%d l=%d prec1=%d\n", (int)prec, (int)K, (int)l, (int)prec1); bf_init(s, T); cmp_1 = (a->expn >= 1); /* a >= 1 */ if (cmp_1) { bf_set_ui(T, 1); bf_div(T, T, a, prec1, BF_RNDN); } else { bf_set(T, a); } /* abs(T) <= 1 */ /* argument reduction */ bf_init(s, U); bf_init(s, V); bf_init(s, X2); for(i = 0; i < K; i++) { /* T = T / (1 + sqrt(1 + T^2)) */ bf_mul(U, T, T, prec1, BF_RNDN); bf_add_si(U, U, 1, prec1, BF_RNDN); bf_sqrt(V, U, prec1, BF_RNDN); bf_add_si(V, V, 1, prec1, BF_RNDN); bf_div(T, T, V, prec1, BF_RNDN); } /* Taylor series: x - x^3/3 + ... + (-1)^ l * y^(2*l + 1) / (2*l+1) */ bf_mul(X2, T, T, prec1, BF_RNDN); bf_set_ui(r, 0); for(i = l; i >= 1; i--) { bf_set_si(U, 1); bf_set_ui(V, 2 * i + 1); bf_div(U, U, V, prec1, BF_RNDN); bf_neg(r); bf_add(r, r, U, prec1, BF_RNDN); bf_mul(r, r, X2, prec1, BF_RNDN); } bf_neg(r); bf_add_si(r, r, 1, prec1, BF_RNDN); bf_mul(r, r, T, prec1, BF_RNDN); /* undo the argument reduction */ bf_mul_2exp(r, K, BF_PREC_INF, BF_RNDZ); bf_delete(U); bf_delete(V); bf_delete(X2); i = add_pi2; if (cmp_1 > 0) { /* undo the inversion : r = sign(a)*PI/2 - r */ bf_neg(r); i += 1 - 2 * a->sign; } /* add i*(pi/2) with -1 <= i <= 2 */ if (i != 0) { bf_const_pi(T, prec1, BF_RNDF); if (i != 2) bf_mul_2exp(T, -1, BF_PREC_INF, BF_RNDZ); T->sign = (i < 0); bf_add(r, T, r, prec1, BF_RNDN); } bf_delete(T); return BF_ST_INEXACT; } int bf_atan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) { bf_context_t *s = r->ctx; bf_t T_s, *T = &T_s; int res; if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bf_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF) { /* -PI/2 or PI/2 */ bf_const_pi_signed(r, a->sign, prec, flags); bf_mul_2exp(r, -1, BF_PREC_INF, BF_RNDZ); return BF_ST_INEXACT; } else { bf_set_zero(r, a->sign); return 0; } } bf_init(s, T); bf_set_ui(T, 1); res = bf_cmpu(a, T); bf_delete(T); if (res == 0) { /* short cut: abs(a) == 1 -> +/-pi/4 */ bf_const_pi_signed(r, a->sign, prec, flags); bf_mul_2exp(r, -2, BF_PREC_INF, BF_RNDZ); return BF_ST_INEXACT; } /* small argument case: result = x+r(x) with r(x) = -x^3/3 + O(X^5). We assume r(x) < 2^(3*EXP(x) - 1). */ if (a->expn < 0) { slimb_t e; e = sat_add(2 * a->expn, a->expn - 1); if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) { bf_set(r, a); return bf_add_epsilon(r, r, e, 1 - a->sign, prec, flags); } } return bf_ziv_rounding(r, a, prec, flags, bf_atan_internal, (void *)FALSE); } static int bf_atan2_internal(bf_t *r, const bf_t *y, limb_t prec, void *opaque) { bf_context_t *s = r->ctx; const bf_t *x = opaque; bf_t T_s, *T = &T_s; limb_t prec1; int ret; if (y->expn == BF_EXP_NAN || x->expn == BF_EXP_NAN) { bf_set_nan(r); return 0; } /* compute atan(y/x) assumming inf/inf = 1 and 0/0 = 0 */ bf_init(s, T); prec1 = prec + 32; if (y->expn == BF_EXP_INF && x->expn == BF_EXP_INF) { bf_set_ui(T, 1); T->sign = y->sign ^ x->sign; } else if (y->expn == BF_EXP_ZERO && x->expn == BF_EXP_ZERO) { bf_set_zero(T, y->sign ^ x->sign); } else { bf_div(T, y, x, prec1, BF_RNDF); } ret = bf_atan(r, T, prec1, BF_RNDF); if (x->sign) { /* if x < 0 (it includes -0), return sign(y)*pi + atan(y/x) */ bf_const_pi(T, prec1, BF_RNDF); T->sign = y->sign; bf_add(r, r, T, prec1, BF_RNDN); ret |= BF_ST_INEXACT; } bf_delete(T); return ret; } int bf_atan2(bf_t *r, const bf_t *y, const bf_t *x, limb_t prec, bf_flags_t flags) { return bf_ziv_rounding(r, y, prec, flags, bf_atan2_internal, (void *)x); } static int bf_asin_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque) { bf_context_t *s = r->ctx; BOOL is_acos = (BOOL)(intptr_t)opaque; bf_t T_s, *T = &T_s; limb_t prec1, prec2; /* asin(x) = atan(x/sqrt(1-x^2)) acos(x) = pi/2 - asin(x) */ prec1 = prec + 8; /* increase the precision in x^2 to compensate the cancellation in (1-x^2) if x is close to 1 */ /* XXX: use less precision when possible */ if (a->expn >= 0) prec2 = BF_PREC_INF; else prec2 = prec1; bf_init(s, T); bf_mul(T, a, a, prec2, BF_RNDN); bf_neg(T); bf_add_si(T, T, 1, prec2, BF_RNDN); bf_sqrt(r, T, prec1, BF_RNDN); bf_div(T, a, r, prec1, BF_RNDN); if (is_acos) bf_neg(T); bf_atan_internal(r, T, prec1, (void *)(intptr_t)is_acos); bf_delete(T); return BF_ST_INEXACT; } int bf_asin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) { bf_context_t *s = r->ctx; bf_t T_s, *T = &T_s; int res; if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bf_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF) { bf_set_nan(r); return BF_ST_INVALID_OP; } else { bf_set_zero(r, a->sign); return 0; } } bf_init(s, T); bf_set_ui(T, 1); res = bf_cmpu(a, T); bf_delete(T); if (res > 0) { bf_set_nan(r); return BF_ST_INVALID_OP; } /* small argument case: result = x+r(x) with r(x) = x^3/6 + O(X^5). We assume r(x) < 2^(3*EXP(x) - 2). */ if (a->expn < 0) { slimb_t e; e = sat_add(2 * a->expn, a->expn - 2); if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) { bf_set(r, a); return bf_add_epsilon(r, r, e, a->sign, prec, flags); } } return bf_ziv_rounding(r, a, prec, flags, bf_asin_internal, (void *)FALSE); } int bf_acos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags) { bf_context_t *s = r->ctx; bf_t T_s, *T = &T_s; int res; if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bf_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF) { bf_set_nan(r); return BF_ST_INVALID_OP; } else { bf_const_pi(r, prec, flags); bf_mul_2exp(r, -1, BF_PREC_INF, BF_RNDZ); return BF_ST_INEXACT; } } bf_init(s, T); bf_set_ui(T, 1); res = bf_cmpu(a, T); bf_delete(T); if (res > 0) { bf_set_nan(r); return BF_ST_INVALID_OP; } else if (res == 0 && a->sign == 0) { bf_set_zero(r, 0); return 0; } return bf_ziv_rounding(r, a, prec, flags, bf_asin_internal, (void *)TRUE); } /***************************************************************/ /* decimal floating point numbers */ #ifdef USE_BF_DEC #define adddq(r1, r0, a1, a0) \ do { \ limb_t __t = r0; \ r0 += (a0); \ r1 += (a1) + (r0 < __t); \ } while (0) #define subdq(r1, r0, a1, a0) \ do { \ limb_t __t = r0; \ r0 -= (a0); \ r1 -= (a1) + (r0 > __t); \ } while (0) #if LIMB_BITS == 64 /* Note: we assume __int128 is available */ #define muldq(r1, r0, a, b) \ do { \ unsigned __int128 __t; \ __t = (unsigned __int128)(a) * (unsigned __int128)(b); \ r0 = __t; \ r1 = __t >> 64; \ } while (0) #define divdq(q, r, a1, a0, b) \ do { \ unsigned __int128 __t; \ limb_t __b = (b); \ __t = ((unsigned __int128)(a1) << 64) | (a0); \ q = __t / __b; \ r = __t % __b; \ } while (0) #else #define muldq(r1, r0, a, b) \ do { \ uint64_t __t; \ __t = (uint64_t)(a) * (uint64_t)(b); \ r0 = __t; \ r1 = __t >> 32; \ } while (0) #define divdq(q, r, a1, a0, b) \ do { \ uint64_t __t; \ limb_t __b = (b); \ __t = ((uint64_t)(a1) << 32) | (a0); \ q = __t / __b; \ r = __t % __b; \ } while (0) #endif /* LIMB_BITS != 64 */ static inline __maybe_unused limb_t shrd(limb_t low, limb_t high, long shift) { if (shift != 0) low = (low >> shift) | (high << (LIMB_BITS - shift)); return low; } static inline __maybe_unused limb_t shld(limb_t a1, limb_t a0, long shift) { if (shift != 0) return (a1 << shift) | (a0 >> (LIMB_BITS - shift)); else return a1; } #if LIMB_DIGITS == 19 /* WARNING: hardcoded for b = 1e19. It is assumed that: 0 <= a1 < 2^63 */ #define divdq_base(q, r, a1, a0)\ do {\ uint64_t __a0, __a1, __t0, __t1, __b = BF_DEC_BASE; \ __a0 = a0;\ __a1 = a1;\ __t0 = __a1;\ __t0 = shld(__t0, __a0, 1);\ muldq(q, __t1, __t0, UINT64_C(17014118346046923173)); \ muldq(__t1, __t0, q, __b);\ subdq(__a1, __a0, __t1, __t0);\ subdq(__a1, __a0, 1, __b * 2); \ __t0 = (slimb_t)__a1 >> 1; \ q += 2 + __t0;\ adddq(__a1, __a0, 0, __b & __t0);\ q += __a1; \ __a0 += __b & __a1; \ r = __a0;\ } while(0) #elif LIMB_DIGITS == 9 /* WARNING: hardcoded for b = 1e9. It is assumed that: 0 <= a1 < 2^29 */ #define divdq_base(q, r, a1, a0)\ do {\ uint32_t __t0, __t1, __b = BF_DEC_BASE; \ __t0 = a1;\ __t1 = a0;\ __t0 = (__t0 << 3) | (__t1 >> (32 - 3)); \ muldq(q, __t1, __t0, 2305843009U);\ r = a0 - q * __b;\ __t1 = (r >= __b);\ q += __t1;\ if (__t1)\ r -= __b;\ } while(0) #endif /* fast integer division by a fixed constant */ typedef struct FastDivData { limb_t m1; /* multiplier */ int8_t shift1; int8_t shift2; } FastDivData; /* From "Division by Invariant Integers using Multiplication" by Torborn Granlund and Peter L. Montgomery */ /* d must be != 0 */ static inline __maybe_unused void fast_udiv_init(FastDivData *s, limb_t d) { int l; limb_t q, r, m1; if (d == 1) l = 0; else l = 64 - clz64(d - 1); divdq(q, r, ((limb_t)1 << l) - d, 0, d); (void)r; m1 = q + 1; // printf("d=%lu l=%d m1=0x%016lx\n", d, l, m1); s->m1 = m1; s->shift1 = l; if (s->shift1 > 1) s->shift1 = 1; s->shift2 = l - 1; if (s->shift2 < 0) s->shift2 = 0; } static inline limb_t fast_udiv(limb_t a, const FastDivData *s) { limb_t t0, t1; muldq(t1, t0, s->m1, a); t0 = (a - t1) >> s->shift1; return (t1 + t0) >> s->shift2; } /* contains 10^i */ const limb_t mp_pow_dec[LIMB_DIGITS + 1] = { 1U, 10U, 100U, 1000U, 10000U, 100000U, 1000000U, 10000000U, 100000000U, 1000000000U, #if LIMB_BITS == 64 10000000000U, 100000000000U, 1000000000000U, 10000000000000U, 100000000000000U, 1000000000000000U, 10000000000000000U, 100000000000000000U, 1000000000000000000U, 10000000000000000000U, #endif }; /* precomputed from fast_udiv_init(10^i) */ static const FastDivData mp_pow_div[LIMB_DIGITS + 1] = { #if LIMB_BITS == 32 { 0x00000001, 0, 0 }, { 0x9999999a, 1, 3 }, { 0x47ae147b, 1, 6 }, { 0x0624dd30, 1, 9 }, { 0xa36e2eb2, 1, 13 }, { 0x4f8b588f, 1, 16 }, { 0x0c6f7a0c, 1, 19 }, { 0xad7f29ac, 1, 23 }, { 0x5798ee24, 1, 26 }, { 0x12e0be83, 1, 29 }, #else { 0x0000000000000001, 0, 0 }, { 0x999999999999999a, 1, 3 }, { 0x47ae147ae147ae15, 1, 6 }, { 0x0624dd2f1a9fbe77, 1, 9 }, { 0xa36e2eb1c432ca58, 1, 13 }, { 0x4f8b588e368f0847, 1, 16 }, { 0x0c6f7a0b5ed8d36c, 1, 19 }, { 0xad7f29abcaf48579, 1, 23 }, { 0x5798ee2308c39dfa, 1, 26 }, { 0x12e0be826d694b2f, 1, 29 }, { 0xb7cdfd9d7bdbab7e, 1, 33 }, { 0x5fd7fe17964955fe, 1, 36 }, { 0x19799812dea11198, 1, 39 }, { 0xc25c268497681c27, 1, 43 }, { 0x6849b86a12b9b01f, 1, 46 }, { 0x203af9ee756159b3, 1, 49 }, { 0xcd2b297d889bc2b7, 1, 53 }, { 0x70ef54646d496893, 1, 56 }, { 0x2725dd1d243aba0f, 1, 59 }, { 0xd83c94fb6d2ac34d, 1, 63 }, #endif }; /* divide by 10^shift with 0 <= shift <= LIMB_DIGITS */ static inline limb_t fast_shr_dec(limb_t a, int shift) { return fast_udiv(a, &mp_pow_div[shift]); } /* division and remainder by 10^shift */ #define fast_shr_rem_dec(q, r, a, shift) q = fast_shr_dec(a, shift), r = a - q * mp_pow_dec[shift] limb_t mp_add_dec(limb_t *res, const limb_t *op1, const limb_t *op2, mp_size_t n, limb_t carry) { limb_t base = BF_DEC_BASE; mp_size_t i; limb_t k, a, v; k=carry; for(i=0;i v; if (k) a += base; res[i] = a; } return k; } limb_t mp_sub_ui_dec(limb_t *tab, limb_t b, mp_size_t n) { limb_t base = BF_DEC_BASE; mp_size_t i; limb_t k, v, a; k=b; for(i=0;i v; if (k) a += base; tab[i]=a; if (k == 0) break; } return k; } /* taba[] = taba[] * b + l. 0 <= b, l <= base - 1. Return the high carry */ limb_t mp_mul1_dec(limb_t *tabr, const limb_t *taba, mp_size_t n, limb_t b, limb_t l) { mp_size_t i; limb_t t0, t1, r; for(i = 0; i < n; i++) { muldq(t1, t0, taba[i], b); adddq(t1, t0, 0, l); divdq_base(l, r, t1, t0); tabr[i] = r; } return l; } /* tabr[] += taba[] * b. 0 <= b <= base - 1. Return the value to add to the high word */ limb_t mp_add_mul1_dec(limb_t *tabr, const limb_t *taba, mp_size_t n, limb_t b) { mp_size_t i; limb_t l, t0, t1, r; l = 0; for(i = 0; i < n; i++) { muldq(t1, t0, taba[i], b); adddq(t1, t0, 0, l); adddq(t1, t0, 0, tabr[i]); divdq_base(l, r, t1, t0); tabr[i] = r; } return l; } /* tabr[] -= taba[] * b. 0 <= b <= base - 1. Return the value to substract to the high word. */ limb_t mp_sub_mul1_dec(limb_t *tabr, const limb_t *taba, mp_size_t n, limb_t b) { limb_t base = BF_DEC_BASE; mp_size_t i; limb_t l, t0, t1, r, a, v, c; /* XXX: optimize */ l = 0; for(i = 0; i < n; i++) { muldq(t1, t0, taba[i], b); adddq(t1, t0, 0, l); divdq_base(l, r, t1, t0); v = tabr[i]; a = v - r; c = a > v; if (c) a += base; /* never bigger than base because r = 0 when l = base - 1 */ l += c; tabr[i] = a; } return l; } /* size of the result : op1_size + op2_size. */ void mp_mul_basecase_dec(limb_t *result, const limb_t *op1, mp_size_t op1_size, const limb_t *op2, mp_size_t op2_size) { mp_size_t i; limb_t r; result[op1_size] = mp_mul1_dec(result, op1, op1_size, op2[0], 0); for(i=1;i> 1; if (r) r = base_div2; for(i = na - 1; i >= 0; i--) { t0 = taba[i]; tabr[i] = (t0 >> 1) + r; r = 0; if (t0 & 1) r = base_div2; } if (r) r = 1; } else #endif if (na >= UDIV1NORM_THRESHOLD) { shift = clz(b); if (shift == 0) { /* normalized case: b >= 2^(LIMB_BITS-1) */ limb_t b_inv; b_inv = udiv1norm_init(b); for(i = na - 1; i >= 0; i--) { muldq(t1, t0, r, base); adddq(t1, t0, 0, taba[i]); q = udiv1norm(&r, t1, t0, b, b_inv); tabr[i] = q; } } else { limb_t b_inv; b <<= shift; b_inv = udiv1norm_init(b); for(i = na - 1; i >= 0; i--) { muldq(t1, t0, r, base); adddq(t1, t0, 0, taba[i]); t1 = (t1 << shift) | (t0 >> (LIMB_BITS - shift)); t0 <<= shift; q = udiv1norm(&r, t1, t0, b, b_inv); r >>= shift; tabr[i] = q; } } } else { for(i = na - 1; i >= 0; i--) { muldq(t1, t0, r, base); adddq(t1, t0, 0, taba[i]); divdq(q, r, t1, t0, b); tabr[i] = q; } } return r; } static __maybe_unused void mp_print_str_dec(const char *str, const limb_t *tab, slimb_t n) { slimb_t i; printf("%s=", str); for(i = n - 1; i >= 0; i--) { if (i != n - 1) printf("_"); printf("%0*" PRIu_LIMB, LIMB_DIGITS, tab[i]); } printf("\n"); } static __maybe_unused void mp_print_str_h_dec(const char *str, const limb_t *tab, slimb_t n, limb_t high) { slimb_t i; printf("%s=", str); printf("%0*" PRIu_LIMB, LIMB_DIGITS, high); for(i = n - 1; i >= 0; i--) { printf("_"); printf("%0*" PRIu_LIMB, LIMB_DIGITS, tab[i]); } printf("\n"); } //#define DEBUG_DIV_SLOW #define DIV_STATIC_ALLOC_LEN 16 /* return q = a / b and r = a % b. taba[na] must be allocated if tabb1[nb - 1] < B / 2. tabb1[nb - 1] must be != zero. na must be >= nb. 's' can be NULL if tabb1[nb - 1] >= B / 2. The remainder is is returned in taba and contains nb libms. tabq contains na - nb + 1 limbs. No overlap is permitted. Running time of the standard method: (na - nb + 1) * nb Return 0 if OK, -1 if memory alloc error */ /* XXX: optimize */ static int mp_div_dec(bf_context_t *s, limb_t *tabq, limb_t *taba, mp_size_t na, const limb_t *tabb1, mp_size_t nb) { limb_t base = BF_DEC_BASE; limb_t r, mult, t0, t1, a, c, q, v, *tabb; mp_size_t i, j; limb_t static_tabb[DIV_STATIC_ALLOC_LEN]; #ifdef DEBUG_DIV_SLOW mp_print_str_dec("a", taba, na); mp_print_str_dec("b", tabb1, nb); #endif /* normalize tabb */ r = tabb1[nb - 1]; assert(r != 0); i = na - nb; if (r >= BF_DEC_BASE / 2) { mult = 1; tabb = (limb_t *)tabb1; q = 1; for(j = nb - 1; j >= 0; j--) { if (taba[i + j] != tabb[j]) { if (taba[i + j] < tabb[j]) q = 0; break; } } tabq[i] = q; if (q) { mp_sub_dec(taba + i, taba + i, tabb, nb, 0); } i--; } else { mult = base / (r + 1); if (likely(nb <= DIV_STATIC_ALLOC_LEN)) { tabb = static_tabb; } else { tabb = bf_malloc(s, sizeof(limb_t) * nb); if (!tabb) return -1; } mp_mul1_dec(tabb, tabb1, nb, mult, 0); taba[na] = mp_mul1_dec(taba, taba, na, mult, 0); } #ifdef DEBUG_DIV_SLOW printf("mult=" FMT_LIMB "\n", mult); mp_print_str_dec("a_norm", taba, na + 1); mp_print_str_dec("b_norm", tabb, nb); #endif for(; i >= 0; i--) { if (unlikely(taba[i + nb] >= tabb[nb - 1])) { /* XXX: check if it is really possible */ q = base - 1; } else { muldq(t1, t0, taba[i + nb], base); adddq(t1, t0, 0, taba[i + nb - 1]); divdq(q, r, t1, t0, tabb[nb - 1]); } // printf("i=%d q1=%ld\n", i, q); r = mp_sub_mul1_dec(taba + i, tabb, nb, q); // mp_dump("r1", taba + i, nb, bd); // printf("r2=%ld\n", r); v = taba[i + nb]; a = v - r; c = a > v; if (c) a += base; taba[i + nb] = a; if (c != 0) { /* negative result */ for(;;) { q--; c = mp_add_dec(taba + i, taba + i, tabb, nb, 0); /* propagate carry and test if positive result */ if (c != 0) { if (++taba[i + nb] == base) { break; } } } } tabq[i] = q; } #ifdef DEBUG_DIV_SLOW mp_print_str_dec("q", tabq, na - nb + 1); mp_print_str_dec("r", taba, nb); #endif /* remove the normalization */ if (mult != 1) { mp_div1_dec(taba, taba, nb, mult, 0); if (unlikely(tabb != static_tabb)) bf_free(s, tabb); } return 0; } /* divide by 10^shift */ static limb_t mp_shr_dec(limb_t *tab_r, const limb_t *tab, mp_size_t n, limb_t shift, limb_t high) { mp_size_t i; limb_t l, a, q, r; assert(shift >= 1 && shift < LIMB_DIGITS); l = high; for(i = n - 1; i >= 0; i--) { a = tab[i]; fast_shr_rem_dec(q, r, a, shift); tab_r[i] = q + l * mp_pow_dec[LIMB_DIGITS - shift]; l = r; } return l; } /* multiply by 10^shift */ static limb_t mp_shl_dec(limb_t *tab_r, const limb_t *tab, mp_size_t n, limb_t shift, limb_t low) { mp_size_t i; limb_t l, a, q, r; assert(shift >= 1 && shift < LIMB_DIGITS); l = low; for(i = 0; i < n; i++) { a = tab[i]; fast_shr_rem_dec(q, r, a, LIMB_DIGITS - shift); tab_r[i] = r * mp_pow_dec[shift] + l; l = q; } return l; } static limb_t mp_sqrtrem2_dec(limb_t *tabs, limb_t *taba) { int k; dlimb_t a, b, r; limb_t taba1[2], s, r0, r1; /* convert to binary and normalize */ a = (dlimb_t)taba[1] * BF_DEC_BASE + taba[0]; k = clz(a >> LIMB_BITS) & ~1; b = a << k; taba1[0] = b; taba1[1] = b >> LIMB_BITS; mp_sqrtrem2(&s, taba1); s >>= (k >> 1); /* convert the remainder back to decimal */ r = a - (dlimb_t)s * (dlimb_t)s; divdq_base(r1, r0, r >> LIMB_BITS, r); taba[0] = r0; tabs[0] = s; return r1; } //#define DEBUG_SQRTREM_DEC /* tmp_buf must contain (n / 2 + 1 limbs) */ static limb_t mp_sqrtrem_rec_dec(limb_t *tabs, limb_t *taba, limb_t n, limb_t *tmp_buf) { limb_t l, h, rh, ql, qh, c, i; if (n == 1) return mp_sqrtrem2_dec(tabs, taba); #ifdef DEBUG_SQRTREM_DEC mp_print_str_dec("a", taba, 2 * n); #endif l = n / 2; h = n - l; qh = mp_sqrtrem_rec_dec(tabs + l, taba + 2 * l, h, tmp_buf); #ifdef DEBUG_SQRTREM_DEC mp_print_str_dec("s1", tabs + l, h); mp_print_str_h_dec("r1", taba + 2 * l, h, qh); mp_print_str_h_dec("r2", taba + l, n, qh); #endif /* the remainder is in taba + 2 * l. Its high bit is in qh */ if (qh) { mp_sub_dec(taba + 2 * l, taba + 2 * l, tabs + l, h, 0); } /* instead of dividing by 2*s, divide by s (which is normalized) and update q and r */ mp_div_dec(NULL, tmp_buf, taba + l, n, tabs + l, h); qh += tmp_buf[l]; for(i = 0; i < l; i++) tabs[i] = tmp_buf[i]; ql = mp_div1_dec(tabs, tabs, l, 2, qh & 1); qh = qh >> 1; /* 0 or 1 */ if (ql) rh = mp_add_dec(taba + l, taba + l, tabs + l, h, 0); else rh = 0; #ifdef DEBUG_SQRTREM_DEC mp_print_str_h_dec("q", tabs, l, qh); mp_print_str_h_dec("u", taba + l, h, rh); #endif mp_add_ui_dec(tabs + l, qh, h); #ifdef DEBUG_SQRTREM_DEC mp_print_str_dec("s2", tabs, n); #endif /* q = qh, tabs[l - 1 ... 0], r = taba[n - 1 ... l] */ /* subtract q^2. if qh = 1 then q = B^l, so we can take shortcuts */ if (qh) { c = qh; } else { mp_mul_basecase_dec(taba + n, tabs, l, tabs, l); c = mp_sub_dec(taba, taba, taba + n, 2 * l, 0); } rh -= mp_sub_ui_dec(taba + 2 * l, c, n - 2 * l); if ((slimb_t)rh < 0) { mp_sub_ui_dec(tabs, 1, n); rh += mp_add_mul1_dec(taba, tabs, n, 2); rh += mp_add_ui_dec(taba, 1, n); } return rh; } /* 'taba' has 2*n limbs with n >= 1 and taba[2*n-1] >= B/4. Return (s, r) with s=floor(sqrt(a)) and r=a-s^2. 0 <= r <= 2 * s. tabs has n limbs. r is returned in the lower n limbs of taba. Its r[n] is the returned value of the function. */ int mp_sqrtrem_dec(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n) { limb_t tmp_buf1[8]; limb_t *tmp_buf; mp_size_t n2; n2 = n / 2 + 1; if (n2 <= countof(tmp_buf1)) { tmp_buf = tmp_buf1; } else { tmp_buf = bf_malloc(s, sizeof(limb_t) * n2); if (!tmp_buf) return -1; } taba[n] = mp_sqrtrem_rec_dec(tabs, taba, n, tmp_buf); if (tmp_buf != tmp_buf1) bf_free(s, tmp_buf); return 0; } /* return the number of leading zero digits, from 0 to LIMB_DIGITS */ static int clz_dec(limb_t a) { if (a == 0) return LIMB_DIGITS; switch(LIMB_BITS - 1 - clz(a)) { case 0: /* 1-1 */ return LIMB_DIGITS - 1; case 1: /* 2-3 */ return LIMB_DIGITS - 1; case 2: /* 4-7 */ return LIMB_DIGITS - 1; case 3: /* 8-15 */ if (a < 10) return LIMB_DIGITS - 1; else return LIMB_DIGITS - 2; case 4: /* 16-31 */ return LIMB_DIGITS - 2; case 5: /* 32-63 */ return LIMB_DIGITS - 2; case 6: /* 64-127 */ if (a < 100) return LIMB_DIGITS - 2; else return LIMB_DIGITS - 3; case 7: /* 128-255 */ return LIMB_DIGITS - 3; case 8: /* 256-511 */ return LIMB_DIGITS - 3; case 9: /* 512-1023 */ if (a < 1000) return LIMB_DIGITS - 3; else return LIMB_DIGITS - 4; case 10: /* 1024-2047 */ return LIMB_DIGITS - 4; case 11: /* 2048-4095 */ return LIMB_DIGITS - 4; case 12: /* 4096-8191 */ return LIMB_DIGITS - 4; case 13: /* 8192-16383 */ if (a < 10000) return LIMB_DIGITS - 4; else return LIMB_DIGITS - 5; case 14: /* 16384-32767 */ return LIMB_DIGITS - 5; case 15: /* 32768-65535 */ return LIMB_DIGITS - 5; case 16: /* 65536-131071 */ if (a < 100000) return LIMB_DIGITS - 5; else return LIMB_DIGITS - 6; case 17: /* 131072-262143 */ return LIMB_DIGITS - 6; case 18: /* 262144-524287 */ return LIMB_DIGITS - 6; case 19: /* 524288-1048575 */ if (a < 1000000) return LIMB_DIGITS - 6; else return LIMB_DIGITS - 7; case 20: /* 1048576-2097151 */ return LIMB_DIGITS - 7; case 21: /* 2097152-4194303 */ return LIMB_DIGITS - 7; case 22: /* 4194304-8388607 */ return LIMB_DIGITS - 7; case 23: /* 8388608-16777215 */ if (a < 10000000) return LIMB_DIGITS - 7; else return LIMB_DIGITS - 8; case 24: /* 16777216-33554431 */ return LIMB_DIGITS - 8; case 25: /* 33554432-67108863 */ return LIMB_DIGITS - 8; case 26: /* 67108864-134217727 */ if (a < 100000000) return LIMB_DIGITS - 8; else return LIMB_DIGITS - 9; #if LIMB_BITS == 64 case 27: /* 134217728-268435455 */ return LIMB_DIGITS - 9; case 28: /* 268435456-536870911 */ return LIMB_DIGITS - 9; case 29: /* 536870912-1073741823 */ if (a < 1000000000) return LIMB_DIGITS - 9; else return LIMB_DIGITS - 10; case 30: /* 1073741824-2147483647 */ return LIMB_DIGITS - 10; case 31: /* 2147483648-4294967295 */ return LIMB_DIGITS - 10; case 32: /* 4294967296-8589934591 */ return LIMB_DIGITS - 10; case 33: /* 8589934592-17179869183 */ if (a < 10000000000) return LIMB_DIGITS - 10; else return LIMB_DIGITS - 11; case 34: /* 17179869184-34359738367 */ return LIMB_DIGITS - 11; case 35: /* 34359738368-68719476735 */ return LIMB_DIGITS - 11; case 36: /* 68719476736-137438953471 */ if (a < 100000000000) return LIMB_DIGITS - 11; else return LIMB_DIGITS - 12; case 37: /* 137438953472-274877906943 */ return LIMB_DIGITS - 12; case 38: /* 274877906944-549755813887 */ return LIMB_DIGITS - 12; case 39: /* 549755813888-1099511627775 */ if (a < 1000000000000) return LIMB_DIGITS - 12; else return LIMB_DIGITS - 13; case 40: /* 1099511627776-2199023255551 */ return LIMB_DIGITS - 13; case 41: /* 2199023255552-4398046511103 */ return LIMB_DIGITS - 13; case 42: /* 4398046511104-8796093022207 */ return LIMB_DIGITS - 13; case 43: /* 8796093022208-17592186044415 */ if (a < 10000000000000) return LIMB_DIGITS - 13; else return LIMB_DIGITS - 14; case 44: /* 17592186044416-35184372088831 */ return LIMB_DIGITS - 14; case 45: /* 35184372088832-70368744177663 */ return LIMB_DIGITS - 14; case 46: /* 70368744177664-140737488355327 */ if (a < 100000000000000) return LIMB_DIGITS - 14; else return LIMB_DIGITS - 15; case 47: /* 140737488355328-281474976710655 */ return LIMB_DIGITS - 15; case 48: /* 281474976710656-562949953421311 */ return LIMB_DIGITS - 15; case 49: /* 562949953421312-1125899906842623 */ if (a < 1000000000000000) return LIMB_DIGITS - 15; else return LIMB_DIGITS - 16; case 50: /* 1125899906842624-2251799813685247 */ return LIMB_DIGITS - 16; case 51: /* 2251799813685248-4503599627370495 */ return LIMB_DIGITS - 16; case 52: /* 4503599627370496-9007199254740991 */ return LIMB_DIGITS - 16; case 53: /* 9007199254740992-18014398509481983 */ if (a < 10000000000000000) return LIMB_DIGITS - 16; else return LIMB_DIGITS - 17; case 54: /* 18014398509481984-36028797018963967 */ return LIMB_DIGITS - 17; case 55: /* 36028797018963968-72057594037927935 */ return LIMB_DIGITS - 17; case 56: /* 72057594037927936-144115188075855871 */ if (a < 100000000000000000) return LIMB_DIGITS - 17; else return LIMB_DIGITS - 18; case 57: /* 144115188075855872-288230376151711743 */ return LIMB_DIGITS - 18; case 58: /* 288230376151711744-576460752303423487 */ return LIMB_DIGITS - 18; case 59: /* 576460752303423488-1152921504606846975 */ if (a < 1000000000000000000) return LIMB_DIGITS - 18; else return LIMB_DIGITS - 19; #endif default: return 0; } } /* for debugging */ void bfdec_print_str(const char *str, const bfdec_t *a) { slimb_t i; printf("%s=", str); if (a->expn == BF_EXP_NAN) { printf("NaN"); } else { if (a->sign) putchar('-'); if (a->expn == BF_EXP_ZERO) { putchar('0'); } else if (a->expn == BF_EXP_INF) { printf("Inf"); } else { printf("0."); for(i = a->len - 1; i >= 0; i--) printf("%0*" PRIu_LIMB, LIMB_DIGITS, a->tab[i]); printf("e%" PRId_LIMB, a->expn); } } printf("\n"); } /* return != 0 if one digit between 0 and bit_pos inclusive is not zero. */ static inline limb_t scan_digit_nz(const bfdec_t *r, slimb_t bit_pos) { slimb_t pos; limb_t v, q; int shift; if (bit_pos < 0) return 0; pos = (limb_t)bit_pos / LIMB_DIGITS; shift = (limb_t)bit_pos % LIMB_DIGITS; fast_shr_rem_dec(q, v, r->tab[pos], shift + 1); (void)q; if (v != 0) return 1; pos--; while (pos >= 0) { if (r->tab[pos] != 0) return 1; pos--; } return 0; } static limb_t get_digit(const limb_t *tab, limb_t len, slimb_t pos) { slimb_t i; int shift; i = floor_div(pos, LIMB_DIGITS); if (i < 0 || i >= len) return 0; shift = pos - i * LIMB_DIGITS; return fast_shr_dec(tab[i], shift) % 10; } #if 0 static limb_t get_digits(const limb_t *tab, limb_t len, slimb_t pos) { limb_t a0, a1; int shift; slimb_t i; i = floor_div(pos, LIMB_DIGITS); shift = pos - i * LIMB_DIGITS; if (i >= 0 && i < len) a0 = tab[i]; else a0 = 0; if (shift == 0) { return a0; } else { i++; if (i >= 0 && i < len) a1 = tab[i]; else a1 = 0; return fast_shr_dec(a0, shift) + fast_urem(a1, &mp_pow_div[LIMB_DIGITS - shift]) * mp_pow_dec[shift]; } } #endif /* return the addend for rounding. Note that prec can be <= 0 for bf_rint() */ static int bfdec_get_rnd_add(int *pret, const bfdec_t *r, limb_t l, slimb_t prec, int rnd_mode) { int add_one, inexact; limb_t digit1, digit0; // bfdec_print_str("get_rnd_add", r); if (rnd_mode == BF_RNDF) { digit0 = 1; /* faithful rounding does not honor the INEXACT flag */ } else { /* starting limb for bit 'prec + 1' */ digit0 = scan_digit_nz(r, l * LIMB_DIGITS - 1 - bf_max(0, prec + 1)); } /* get the digit at 'prec' */ digit1 = get_digit(r->tab, l, l * LIMB_DIGITS - 1 - prec); inexact = (digit1 | digit0) != 0; add_one = 0; switch(rnd_mode) { case BF_RNDZ: break; case BF_RNDN: if (digit1 == 5) { if (digit0) { add_one = 1; } else { /* round to even */ add_one = get_digit(r->tab, l, l * LIMB_DIGITS - 1 - (prec - 1)) & 1; } } else if (digit1 > 5) { add_one = 1; } break; case BF_RNDD: case BF_RNDU: if (r->sign == (rnd_mode == BF_RNDD)) add_one = inexact; break; case BF_RNDNA: case BF_RNDF: add_one = (digit1 >= 5); break; case BF_RNDA: add_one = inexact; break; default: abort(); } if (inexact) *pret |= BF_ST_INEXACT; return add_one; } /* round to prec1 bits assuming 'r' is non zero and finite. 'r' is assumed to have length 'l' (1 <= l <= r->len). prec1 can be BF_PREC_INF. BF_FLAG_SUBNORMAL is not supported. Cannot fail with BF_ST_MEM_ERROR. */ static int __bfdec_round(bfdec_t *r, limb_t prec1, bf_flags_t flags, limb_t l) { int shift, add_one, rnd_mode, ret; slimb_t i, bit_pos, pos, e_min, e_max, e_range, prec; /* XXX: align to IEEE 754 2008 for decimal numbers ? */ e_range = (limb_t)1 << (bf_get_exp_bits(flags) - 1); e_min = -e_range + 3; e_max = e_range; if (flags & BF_FLAG_RADPNT_PREC) { /* 'prec' is the precision after the decimal point */ if (prec1 != BF_PREC_INF) prec = r->expn + prec1; else prec = prec1; } else if (unlikely(r->expn < e_min) && (flags & BF_FLAG_SUBNORMAL)) { /* restrict the precision in case of potentially subnormal result */ assert(prec1 != BF_PREC_INF); prec = prec1 - (e_min - r->expn); } else { prec = prec1; } /* round to prec bits */ rnd_mode = flags & BF_RND_MASK; ret = 0; add_one = bfdec_get_rnd_add(&ret, r, l, prec, rnd_mode); if (prec <= 0) { if (add_one) { bfdec_resize(r, 1); /* cannot fail because r is non zero */ r->tab[0] = BF_DEC_BASE / 10; r->expn += 1 - prec; ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT; return ret; } else { goto underflow; } } else if (add_one) { limb_t carry; /* add one starting at digit 'prec - 1' */ bit_pos = l * LIMB_DIGITS - 1 - (prec - 1); pos = bit_pos / LIMB_DIGITS; carry = mp_pow_dec[bit_pos % LIMB_DIGITS]; carry = mp_add_ui_dec(r->tab + pos, carry, l - pos); if (carry) { /* shift right by one digit */ mp_shr_dec(r->tab + pos, r->tab + pos, l - pos, 1, 1); r->expn++; } } /* check underflow */ if (unlikely(r->expn < e_min)) { if (flags & BF_FLAG_SUBNORMAL) { /* if inexact, also set the underflow flag */ if (ret & BF_ST_INEXACT) ret |= BF_ST_UNDERFLOW; } else { underflow: bfdec_set_zero(r, r->sign); ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT; return ret; } } /* check overflow */ if (unlikely(r->expn > e_max)) { bfdec_set_inf(r, r->sign); ret |= BF_ST_OVERFLOW | BF_ST_INEXACT; return ret; } /* keep the bits starting at 'prec - 1' */ bit_pos = l * LIMB_DIGITS - 1 - (prec - 1); i = floor_div(bit_pos, LIMB_DIGITS); if (i >= 0) { shift = smod(bit_pos, LIMB_DIGITS); if (shift != 0) { r->tab[i] = fast_shr_dec(r->tab[i], shift) * mp_pow_dec[shift]; } } else { i = 0; } /* remove trailing zeros */ while (r->tab[i] == 0) i++; if (i > 0) { l -= i; memmove(r->tab, r->tab + i, l * sizeof(limb_t)); } bfdec_resize(r, l); /* cannot fail */ return ret; } /* Cannot fail with BF_ST_MEM_ERROR. */ int bfdec_round(bfdec_t *r, limb_t prec, bf_flags_t flags) { if (r->len == 0) return 0; return __bfdec_round(r, prec, flags, r->len); } /* 'r' must be a finite number. Cannot fail with BF_ST_MEM_ERROR. */ int bfdec_normalize_and_round(bfdec_t *r, limb_t prec1, bf_flags_t flags) { limb_t l, v; int shift, ret; // bfdec_print_str("bf_renorm", r); l = r->len; while (l > 0 && r->tab[l - 1] == 0) l--; if (l == 0) { /* zero */ r->expn = BF_EXP_ZERO; bfdec_resize(r, 0); /* cannot fail */ ret = 0; } else { r->expn -= (r->len - l) * LIMB_DIGITS; /* shift to have the MSB set to '1' */ v = r->tab[l - 1]; shift = clz_dec(v); if (shift != 0) { mp_shl_dec(r->tab, r->tab, l, shift, 0); r->expn -= shift; } ret = __bfdec_round(r, prec1, flags, l); } // bf_print_str("r_final", r); return ret; } int bfdec_set_ui(bfdec_t *r, uint64_t v) { #if LIMB_BITS == 32 if (v >= BF_DEC_BASE * BF_DEC_BASE) { if (bfdec_resize(r, 3)) goto fail; r->tab[0] = v % BF_DEC_BASE; v /= BF_DEC_BASE; r->tab[1] = v % BF_DEC_BASE; r->tab[2] = v / BF_DEC_BASE; r->expn = 3 * LIMB_DIGITS; } else #endif if (v >= BF_DEC_BASE) { if (bfdec_resize(r, 2)) goto fail; r->tab[0] = v % BF_DEC_BASE; r->tab[1] = v / BF_DEC_BASE; r->expn = 2 * LIMB_DIGITS; } else { if (bfdec_resize(r, 1)) goto fail; r->tab[0] = v; r->expn = LIMB_DIGITS; } r->sign = 0; return bfdec_normalize_and_round(r, BF_PREC_INF, 0); fail: bfdec_set_nan(r); return BF_ST_MEM_ERROR; } int bfdec_set_si(bfdec_t *r, int64_t v) { int ret; if (v < 0) { ret = bfdec_set_ui(r, -v); r->sign = 1; } else { ret = bfdec_set_ui(r, v); } return ret; } static int bfdec_add_internal(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags, int b_neg) { bf_context_t *s = r->ctx; int is_sub, cmp_res, a_sign, b_sign, ret; a_sign = a->sign; b_sign = b->sign ^ b_neg; is_sub = a_sign ^ b_sign; cmp_res = bfdec_cmpu(a, b); if (cmp_res < 0) { const bfdec_t *tmp; tmp = a; a = b; b = tmp; a_sign = b_sign; /* b_sign is never used later */ } /* abs(a) >= abs(b) */ if (cmp_res == 0 && is_sub && a->expn < BF_EXP_INF) { /* zero result */ bfdec_set_zero(r, (flags & BF_RND_MASK) == BF_RNDD); ret = 0; } else if (a->len == 0 || b->len == 0) { ret = 0; if (a->expn >= BF_EXP_INF) { if (a->expn == BF_EXP_NAN) { /* at least one operand is NaN */ bfdec_set_nan(r); ret = 0; } else if (b->expn == BF_EXP_INF && is_sub) { /* infinities with different signs */ bfdec_set_nan(r); ret = BF_ST_INVALID_OP; } else { bfdec_set_inf(r, a_sign); } } else { /* at least one zero and not subtract */ if (bfdec_set(r, a)) return BF_ST_MEM_ERROR; r->sign = a_sign; goto renorm; } } else { slimb_t d, a_offset, b_offset, i, r_len; limb_t carry; limb_t *b1_tab; int b_shift; mp_size_t b1_len; d = a->expn - b->expn; /* XXX: not efficient in time and memory if the precision is not infinite */ r_len = bf_max(a->len, b->len + (d + LIMB_DIGITS - 1) / LIMB_DIGITS); if (bfdec_resize(r, r_len)) goto fail; r->sign = a_sign; r->expn = a->expn; a_offset = r_len - a->len; for(i = 0; i < a_offset; i++) r->tab[i] = 0; for(i = 0; i < a->len; i++) r->tab[a_offset + i] = a->tab[i]; b_shift = d % LIMB_DIGITS; if (b_shift == 0) { b1_len = b->len; b1_tab = (limb_t *)b->tab; } else { b1_len = b->len + 1; b1_tab = bf_malloc(s, sizeof(limb_t) * b1_len); if (!b1_tab) goto fail; b1_tab[0] = mp_shr_dec(b1_tab + 1, b->tab, b->len, b_shift, 0) * mp_pow_dec[LIMB_DIGITS - b_shift]; } b_offset = r_len - (b->len + (d + LIMB_DIGITS - 1) / LIMB_DIGITS); if (is_sub) { carry = mp_sub_dec(r->tab + b_offset, r->tab + b_offset, b1_tab, b1_len, 0); if (carry != 0) { carry = mp_sub_ui_dec(r->tab + b_offset + b1_len, carry, r_len - (b_offset + b1_len)); assert(carry == 0); } } else { carry = mp_add_dec(r->tab + b_offset, r->tab + b_offset, b1_tab, b1_len, 0); if (carry != 0) { carry = mp_add_ui_dec(r->tab + b_offset + b1_len, carry, r_len - (b_offset + b1_len)); } if (carry != 0) { if (bfdec_resize(r, r_len + 1)) { if (b_shift != 0) bf_free(s, b1_tab); goto fail; } r->tab[r_len] = 1; r->expn += LIMB_DIGITS; } } if (b_shift != 0) bf_free(s, b1_tab); renorm: ret = bfdec_normalize_and_round(r, prec, flags); } return ret; fail: bfdec_set_nan(r); return BF_ST_MEM_ERROR; } static int __bfdec_add(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags) { return bfdec_add_internal(r, a, b, prec, flags, 0); } static int __bfdec_sub(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags) { return bfdec_add_internal(r, a, b, prec, flags, 1); } int bfdec_add(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags) { return bf_op2((bf_t *)r, (bf_t *)a, (bf_t *)b, prec, flags, (bf_op2_func_t *)__bfdec_add); } int bfdec_sub(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags) { return bf_op2((bf_t *)r, (bf_t *)a, (bf_t *)b, prec, flags, (bf_op2_func_t *)__bfdec_sub); } int bfdec_mul(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags) { int ret, r_sign; if (a->len < b->len) { const bfdec_t *tmp = a; a = b; b = tmp; } r_sign = a->sign ^ b->sign; /* here b->len <= a->len */ if (b->len == 0) { if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { bfdec_set_nan(r); ret = 0; } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_INF) { if ((a->expn == BF_EXP_INF && b->expn == BF_EXP_ZERO) || (a->expn == BF_EXP_ZERO && b->expn == BF_EXP_INF)) { bfdec_set_nan(r); ret = BF_ST_INVALID_OP; } else { bfdec_set_inf(r, r_sign); ret = 0; } } else { bfdec_set_zero(r, r_sign); ret = 0; } } else { bfdec_t tmp, *r1 = NULL; limb_t a_len, b_len; limb_t *a_tab, *b_tab; a_len = a->len; b_len = b->len; a_tab = a->tab; b_tab = b->tab; if (r == a || r == b) { bfdec_init(r->ctx, &tmp); r1 = r; r = &tmp; } if (bfdec_resize(r, a_len + b_len)) { bfdec_set_nan(r); ret = BF_ST_MEM_ERROR; goto done; } mp_mul_basecase_dec(r->tab, a_tab, a_len, b_tab, b_len); r->sign = r_sign; r->expn = a->expn + b->expn; ret = bfdec_normalize_and_round(r, prec, flags); done: if (r == &tmp) bfdec_move(r1, &tmp); } return ret; } int bfdec_mul_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec, bf_flags_t flags) { bfdec_t b; int ret; bfdec_init(r->ctx, &b); ret = bfdec_set_si(&b, b1); ret |= bfdec_mul(r, a, &b, prec, flags); bfdec_delete(&b); return ret; } int bfdec_add_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec, bf_flags_t flags) { bfdec_t b; int ret; bfdec_init(r->ctx, &b); ret = bfdec_set_si(&b, b1); ret |= bfdec_add(r, a, &b, prec, flags); bfdec_delete(&b); return ret; } static int __bfdec_div(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags) { int ret, r_sign; limb_t n, nb, precl; r_sign = a->sign ^ b->sign; if (a->expn >= BF_EXP_INF || b->expn >= BF_EXP_INF) { if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { bfdec_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF && b->expn == BF_EXP_INF) { bfdec_set_nan(r); return BF_ST_INVALID_OP; } else if (a->expn == BF_EXP_INF) { bfdec_set_inf(r, r_sign); return 0; } else { bfdec_set_zero(r, r_sign); return 0; } } else if (a->expn == BF_EXP_ZERO) { if (b->expn == BF_EXP_ZERO) { bfdec_set_nan(r); return BF_ST_INVALID_OP; } else { bfdec_set_zero(r, r_sign); return 0; } } else if (b->expn == BF_EXP_ZERO) { bfdec_set_inf(r, r_sign); return BF_ST_DIVIDE_ZERO; } nb = b->len; if (prec == BF_PREC_INF) { /* infinite precision: return BF_ST_INVALID_OP if not an exact result */ /* XXX: check */ precl = nb + 1; } else if (flags & BF_FLAG_RADPNT_PREC) { /* number of digits after the decimal point */ /* XXX: check (2 extra digits for rounding + 2 digits) */ precl = (bf_max(a->expn - b->expn, 0) + 2 + prec + 2 + LIMB_DIGITS - 1) / LIMB_DIGITS; } else { /* number of limbs of the quotient (2 extra digits for rounding) */ precl = (prec + 2 + LIMB_DIGITS - 1) / LIMB_DIGITS; } n = bf_max(a->len, precl); { limb_t *taba, na, i; slimb_t d; na = n + nb; taba = bf_malloc(r->ctx, (na + 1) * sizeof(limb_t)); if (!taba) goto fail; d = na - a->len; memset(taba, 0, d * sizeof(limb_t)); memcpy(taba + d, a->tab, a->len * sizeof(limb_t)); if (bfdec_resize(r, n + 1)) goto fail1; if (mp_div_dec(r->ctx, r->tab, taba, na, b->tab, nb)) { fail1: bf_free(r->ctx, taba); goto fail; } /* see if non zero remainder */ for(i = 0; i < nb; i++) { if (taba[i] != 0) break; } bf_free(r->ctx, taba); if (i != nb) { if (prec == BF_PREC_INF) { bfdec_set_nan(r); return BF_ST_INVALID_OP; } else { r->tab[0] |= 1; } } r->expn = a->expn - b->expn + LIMB_DIGITS; r->sign = r_sign; ret = bfdec_normalize_and_round(r, prec, flags); } return ret; fail: bfdec_set_nan(r); return BF_ST_MEM_ERROR; } int bfdec_div(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags) { return bf_op2((bf_t *)r, (bf_t *)a, (bf_t *)b, prec, flags, (bf_op2_func_t *)__bfdec_div); } /* a and b must be finite numbers with a >= 0 and b > 0. 'q' is the integer defined as floor(a/b) and r = a - q * b. */ static void bfdec_tdivremu(bf_context_t *s, bfdec_t *q, bfdec_t *r, const bfdec_t *a, const bfdec_t *b) { if (bfdec_cmpu(a, b) < 0) { bfdec_set_ui(q, 0); bfdec_set(r, a); } else { bfdec_div(q, a, b, 0, BF_RNDZ | BF_FLAG_RADPNT_PREC); bfdec_mul(r, q, b, BF_PREC_INF, BF_RNDZ); bfdec_sub(r, a, r, BF_PREC_INF, BF_RNDZ); } } /* division and remainder. rnd_mode is the rounding mode for the quotient. The additional rounding mode BF_RND_EUCLIDIAN is supported. 'q' is an integer. 'r' is rounded with prec and flags (prec can be BF_PREC_INF). */ int bfdec_divrem(bfdec_t *q, bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags, int rnd_mode) { bf_context_t *s = q->ctx; bfdec_t a1_s, *a1 = &a1_s; bfdec_t b1_s, *b1 = &b1_s; bfdec_t r1_s, *r1 = &r1_s; int q_sign, res; BOOL is_ceil, is_rndn; assert(q != a && q != b); assert(r != a && r != b); assert(q != r); if (a->len == 0 || b->len == 0) { bfdec_set_zero(q, 0); if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) { bfdec_set_nan(r); return 0; } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_ZERO) { bfdec_set_nan(r); return BF_ST_INVALID_OP; } else { bfdec_set(r, a); return bfdec_round(r, prec, flags); } } q_sign = a->sign ^ b->sign; is_rndn = (rnd_mode == BF_RNDN || rnd_mode == BF_RNDNA); switch(rnd_mode) { default: case BF_RNDZ: case BF_RNDN: case BF_RNDNA: is_ceil = FALSE; break; case BF_RNDD: is_ceil = q_sign; break; case BF_RNDU: is_ceil = q_sign ^ 1; break; case BF_RNDA: is_ceil = TRUE; break; case BF_DIVREM_EUCLIDIAN: is_ceil = a->sign; break; } a1->expn = a->expn; a1->tab = a->tab; a1->len = a->len; a1->sign = 0; b1->expn = b->expn; b1->tab = b->tab; b1->len = b->len; b1->sign = 0; // bfdec_print_str("a1", a1); // bfdec_print_str("b1", b1); /* XXX: could improve to avoid having a large 'q' */ bfdec_tdivremu(s, q, r, a1, b1); if (bfdec_is_nan(q) || bfdec_is_nan(r)) goto fail; // bfdec_print_str("q", q); // bfdec_print_str("r", r); if (r->len != 0) { if (is_rndn) { bfdec_init(s, r1); if (bfdec_set(r1, r)) goto fail; if (bfdec_mul_si(r1, r1, 2, BF_PREC_INF, BF_RNDZ)) { bfdec_delete(r1); goto fail; } res = bfdec_cmpu(r1, b); bfdec_delete(r1); if (res > 0 || (res == 0 && (rnd_mode == BF_RNDNA || (get_digit(q->tab, q->len, q->len * LIMB_DIGITS - q->expn) & 1) != 0))) { goto do_sub_r; } } else if (is_ceil) { do_sub_r: res = bfdec_add_si(q, q, 1, BF_PREC_INF, BF_RNDZ); res |= bfdec_sub(r, r, b1, BF_PREC_INF, BF_RNDZ); if (res & BF_ST_MEM_ERROR) goto fail; } } r->sign ^= a->sign; q->sign = q_sign; return bfdec_round(r, prec, flags); fail: bfdec_set_nan(q); bfdec_set_nan(r); return BF_ST_MEM_ERROR; } int bfdec_rem(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags, int rnd_mode) { bfdec_t q_s, *q = &q_s; int ret; bfdec_init(r->ctx, q); ret = bfdec_divrem(q, r, a, b, prec, flags, rnd_mode); bfdec_delete(q); return ret; } /* convert to integer (infinite precision) */ int bfdec_rint(bfdec_t *r, int rnd_mode) { return bfdec_round(r, 0, rnd_mode | BF_FLAG_RADPNT_PREC); } int bfdec_sqrt(bfdec_t *r, const bfdec_t *a, limb_t prec, bf_flags_t flags) { bf_context_t *s = a->ctx; int ret, k; limb_t *a1, v; slimb_t n, n1, prec1; limb_t res; assert(r != a); if (a->len == 0) { if (a->expn == BF_EXP_NAN) { bfdec_set_nan(r); } else if (a->expn == BF_EXP_INF && a->sign) { goto invalid_op; } else { bfdec_set(r, a); } ret = 0; } else if (a->sign || prec == BF_PREC_INF) { invalid_op: bfdec_set_nan(r); ret = BF_ST_INVALID_OP; } else { if (flags & BF_FLAG_RADPNT_PREC) { prec1 = bf_max(floor_div(a->expn + 1, 2) + prec, 1); } else { prec1 = prec; } /* convert the mantissa to an integer with at least 2 * prec + 4 digits */ n = (2 * (prec1 + 2) + 2 * LIMB_DIGITS - 1) / (2 * LIMB_DIGITS); if (bfdec_resize(r, n)) goto fail; a1 = bf_malloc(s, sizeof(limb_t) * 2 * n); if (!a1) goto fail; n1 = bf_min(2 * n, a->len); memset(a1, 0, (2 * n - n1) * sizeof(limb_t)); memcpy(a1 + 2 * n - n1, a->tab + a->len - n1, n1 * sizeof(limb_t)); if (a->expn & 1) { res = mp_shr_dec(a1, a1, 2 * n, 1, 0); } else { res = 0; } /* normalize so that a1 >= B^(2*n)/4. Not need for n = 1 because mp_sqrtrem2_dec already does it */ k = 0; if (n > 1) { v = a1[2 * n - 1]; while (v < BF_DEC_BASE / 4) { k++; v *= 4; } if (k != 0) mp_mul1_dec(a1, a1, 2 * n, 1 << (2 * k), 0); } if (mp_sqrtrem_dec(s, r->tab, a1, n)) { bf_free(s, a1); goto fail; } if (k != 0) mp_div1_dec(r->tab, r->tab, n, 1 << k, 0); if (!res) { res = mp_scan_nz(a1, n + 1); } bf_free(s, a1); if (!res) { res = mp_scan_nz(a->tab, a->len - n1); } if (res != 0) r->tab[0] |= 1; r->sign = 0; r->expn = (a->expn + 1) >> 1; ret = bfdec_round(r, prec, flags); } return ret; fail: bfdec_set_nan(r); return BF_ST_MEM_ERROR; } /* The rounding mode is always BF_RNDZ. Return BF_ST_OVERFLOW if there is an overflow and 0 otherwise. No memory error is possible. */ int bfdec_get_int32(int *pres, const bfdec_t *a) { uint32_t v; int ret; if (a->expn >= BF_EXP_INF) { ret = 0; if (a->expn == BF_EXP_INF) { v = (uint32_t)INT32_MAX + a->sign; /* XXX: return overflow ? */ } else { v = INT32_MAX; } } else if (a->expn <= 0) { v = 0; ret = 0; } else if (a->expn <= 9) { v = fast_shr_dec(a->tab[a->len - 1], LIMB_DIGITS - a->expn); if (a->sign) v = -v; ret = 0; } else if (a->expn == 10) { uint64_t v1; uint32_t v_max; #if LIMB_BITS == 64 v1 = fast_shr_dec(a->tab[a->len - 1], LIMB_DIGITS - a->expn); #else v1 = (uint64_t)a->tab[a->len - 1] * 10 + get_digit(a->tab, a->len, (a->len - 1) * LIMB_DIGITS - 1); #endif v_max = (uint32_t)INT32_MAX + a->sign; if (v1 > v_max) { v = v_max; ret = BF_ST_OVERFLOW; } else { v = v1; if (a->sign) v = -v; ret = 0; } } else { v = (uint32_t)INT32_MAX + a->sign; ret = BF_ST_OVERFLOW; } *pres = v; return ret; } /* power to an integer with infinite precision */ int bfdec_pow_ui(bfdec_t *r, const bfdec_t *a, limb_t b) { int ret, n_bits, i; assert(r != a); if (b == 0) return bfdec_set_ui(r, 1); ret = bfdec_set(r, a); n_bits = LIMB_BITS - clz(b); for(i = n_bits - 2; i >= 0; i--) { ret |= bfdec_mul(r, r, r, BF_PREC_INF, BF_RNDZ); if ((b >> i) & 1) ret |= bfdec_mul(r, r, a, BF_PREC_INF, BF_RNDZ); } return ret; } char *bfdec_ftoa(size_t *plen, const bfdec_t *a, limb_t prec, bf_flags_t flags) { return bf_ftoa_internal(plen, (const bf_t *)a, 10, prec, flags, TRUE); } int bfdec_atof(bfdec_t *r, const char *str, const char **pnext, limb_t prec, bf_flags_t flags) { slimb_t dummy_exp; return bf_atof_internal((bf_t *)r, &dummy_exp, str, pnext, 10, prec, flags, TRUE); } #endif /* USE_BF_DEC */ #ifdef USE_FFT_MUL /***************************************************************/ /* Integer multiplication with FFT */ /* or LIMB_BITS at bit position 'pos' in tab */ static inline void put_bits(limb_t *tab, limb_t len, slimb_t pos, limb_t val) { limb_t i; int p; i = pos >> LIMB_LOG2_BITS; p = pos & (LIMB_BITS - 1); if (i < len) tab[i] |= val << p; if (p != 0) { i++; if (i < len) { tab[i] |= val >> (LIMB_BITS - p); } } } #if defined(__AVX2__) typedef double NTTLimb; /* we must have: modulo >= 1 << NTT_MOD_LOG2_MIN */ #define NTT_MOD_LOG2_MIN 50 #define NTT_MOD_LOG2_MAX 51 #define NB_MODS 5 #define NTT_PROOT_2EXP 39 static const int ntt_int_bits[NB_MODS] = { 254, 203, 152, 101, 50, }; static const limb_t ntt_mods[NB_MODS] = { 0x00073a8000000001, 0x0007858000000001, 0x0007a38000000001, 0x0007a68000000001, 0x0007fd8000000001, }; static const limb_t ntt_proot[2][NB_MODS] = { { 0x00056198d44332c8, 0x0002eb5d640aad39, 0x00047e31eaa35fd0, 0x0005271ac118a150, 0x00075e0ce8442bd5, }, { 0x000461169761bcc5, 0x0002dac3cb2da688, 0x0004abc97751e3bf, 0x000656778fc8c485, 0x0000dc6469c269fa, }, }; static const limb_t ntt_mods_cr[NB_MODS * (NB_MODS - 1) / 2] = { 0x00020e4da740da8e, 0x0004c3dc09c09c1d, 0x000063bd097b4271, 0x000799d8f18f18fd, 0x0005384222222264, 0x000572b07c1f07fe, 0x00035cd08888889a, 0x00066015555557e3, 0x000725960b60b623, 0x0002fc1fa1d6ce12, }; #else typedef limb_t NTTLimb; #if LIMB_BITS == 64 #define NTT_MOD_LOG2_MIN 61 #define NTT_MOD_LOG2_MAX 62 #define NB_MODS 5 #define NTT_PROOT_2EXP 51 static const int ntt_int_bits[NB_MODS] = { 307, 246, 185, 123, 61, }; static const limb_t ntt_mods[NB_MODS] = { 0x28d8000000000001, 0x2a88000000000001, 0x2ed8000000000001, 0x3508000000000001, 0x3aa8000000000001, }; static const limb_t ntt_proot[2][NB_MODS] = { { 0x1b8ea61034a2bea7, 0x21a9762de58206fb, 0x02ca782f0756a8ea, 0x278384537a3e50a1, 0x106e13fee74ce0ab, }, { 0x233513af133e13b8, 0x1d13140d1c6f75f1, 0x12cde57f97e3eeda, 0x0d6149e23cbe654f, 0x36cd204f522a1379, }, }; static const limb_t ntt_mods_cr[NB_MODS * (NB_MODS - 1) / 2] = { 0x08a9ed097b425eea, 0x18a44aaaaaaaaab3, 0x2493f57f57f57f5d, 0x126b8d0649a7f8d4, 0x09d80ed7303b5ccc, 0x25b8bcf3cf3cf3d5, 0x2ce6ce63398ce638, 0x0e31fad40a57eb59, 0x02a3529fd4a7f52f, 0x3a5493e93e93e94a, }; #elif LIMB_BITS == 32 /* we must have: modulo >= 1 << NTT_MOD_LOG2_MIN */ #define NTT_MOD_LOG2_MIN 29 #define NTT_MOD_LOG2_MAX 30 #define NB_MODS 5 #define NTT_PROOT_2EXP 20 static const int ntt_int_bits[NB_MODS] = { 148, 119, 89, 59, 29, }; static const limb_t ntt_mods[NB_MODS] = { 0x0000000032b00001, 0x0000000033700001, 0x0000000036d00001, 0x0000000037300001, 0x000000003e500001, }; static const limb_t ntt_proot[2][NB_MODS] = { { 0x0000000032525f31, 0x0000000005eb3b37, 0x00000000246eda9f, 0x0000000035f25901, 0x00000000022f5768, }, { 0x00000000051eba1a, 0x00000000107be10e, 0x000000001cd574e0, 0x00000000053806e6, 0x000000002cd6bf98, }, }; static const limb_t ntt_mods_cr[NB_MODS * (NB_MODS - 1) / 2] = { 0x000000000449559a, 0x000000001eba6ca9, 0x000000002ec18e46, 0x000000000860160b, 0x000000000d321307, 0x000000000bf51120, 0x000000000f662938, 0x000000000932ab3e, 0x000000002f40eef8, 0x000000002e760905, }; #endif /* LIMB_BITS */ #endif /* !AVX2 */ #if defined(__AVX2__) #define NTT_TRIG_K_MAX 18 #else #define NTT_TRIG_K_MAX 19 #endif typedef struct BFNTTState { bf_context_t *ctx; /* used for mul_mod_fast() */ limb_t ntt_mods_div[NB_MODS]; limb_t ntt_proot_pow[NB_MODS][2][NTT_PROOT_2EXP + 1]; limb_t ntt_proot_pow_inv[NB_MODS][2][NTT_PROOT_2EXP + 1]; NTTLimb *ntt_trig[NB_MODS][2][NTT_TRIG_K_MAX + 1]; /* 1/2^n mod m */ limb_t ntt_len_inv[NB_MODS][NTT_PROOT_2EXP + 1][2]; #if defined(__AVX2__) __m256d ntt_mods_cr_vec[NB_MODS * (NB_MODS - 1) / 2]; __m256d ntt_mods_vec[NB_MODS]; __m256d ntt_mods_inv_vec[NB_MODS]; #else limb_t ntt_mods_cr_inv[NB_MODS * (NB_MODS - 1) / 2]; #endif } BFNTTState; static NTTLimb *get_trig(BFNTTState *s, int k, int inverse, int m_idx); /* add modulo with up to (LIMB_BITS-1) bit modulo */ static inline limb_t add_mod(limb_t a, limb_t b, limb_t m) { limb_t r; r = a + b; if (r >= m) r -= m; return r; } /* sub modulo with up to LIMB_BITS bit modulo */ static inline limb_t sub_mod(limb_t a, limb_t b, limb_t m) { limb_t r; r = a - b; if (r > a) r += m; return r; } /* return (r0+r1*B) mod m precondition: 0 <= r0+r1*B < 2^(64+NTT_MOD_LOG2_MIN) */ static inline limb_t mod_fast(dlimb_t r, limb_t m, limb_t m_inv) { limb_t a1, q, t0, r1, r0; a1 = r >> NTT_MOD_LOG2_MIN; q = ((dlimb_t)a1 * m_inv) >> LIMB_BITS; r = r - (dlimb_t)q * m - m * 2; r1 = r >> LIMB_BITS; t0 = (slimb_t)r1 >> 1; r += m & t0; r0 = r; r1 = r >> LIMB_BITS; r0 += m & r1; return r0; } /* faster version using precomputed modulo inverse. precondition: 0 <= a * b < 2^(64+NTT_MOD_LOG2_MIN) */ static inline limb_t mul_mod_fast(limb_t a, limb_t b, limb_t m, limb_t m_inv) { dlimb_t r; r = (dlimb_t)a * (dlimb_t)b; return mod_fast(r, m, m_inv); } static inline limb_t init_mul_mod_fast(limb_t m) { dlimb_t t; assert(m < (limb_t)1 << NTT_MOD_LOG2_MAX); assert(m >= (limb_t)1 << NTT_MOD_LOG2_MIN); t = (dlimb_t)1 << (LIMB_BITS + NTT_MOD_LOG2_MIN); return t / m; } /* Faster version used when the multiplier is constant. 0 <= a < 2^64, 0 <= b < m. */ static inline limb_t mul_mod_fast2(limb_t a, limb_t b, limb_t m, limb_t b_inv) { limb_t r, q; q = ((dlimb_t)a * (dlimb_t)b_inv) >> LIMB_BITS; r = a * b - q * m; if (r >= m) r -= m; return r; } /* Faster version used when the multiplier is constant. 0 <= a < 2^64, 0 <= b < m. Let r = a * b mod m. The return value is 'r' or 'r + m'. */ static inline limb_t mul_mod_fast3(limb_t a, limb_t b, limb_t m, limb_t b_inv) { limb_t r, q; q = ((dlimb_t)a * (dlimb_t)b_inv) >> LIMB_BITS; r = a * b - q * m; return r; } static inline limb_t init_mul_mod_fast2(limb_t b, limb_t m) { return ((dlimb_t)b << LIMB_BITS) / m; } #ifdef __AVX2__ static inline limb_t ntt_limb_to_int(NTTLimb a, limb_t m) { slimb_t v; v = a; if (v < 0) v += m; if (v >= m) v -= m; return v; } static inline NTTLimb int_to_ntt_limb(limb_t a, limb_t m) { return (slimb_t)a; } static inline NTTLimb int_to_ntt_limb2(limb_t a, limb_t m) { if (a >= (m / 2)) a -= m; return (slimb_t)a; } /* return r + m if r < 0 otherwise r. */ static inline __m256d ntt_mod1(__m256d r, __m256d m) { return _mm256_blendv_pd(r, r + m, r); } /* input: abs(r) < 2 * m. Output: abs(r) < m */ static inline __m256d ntt_mod(__m256d r, __m256d mf, __m256d m2f) { return _mm256_blendv_pd(r, r + m2f, r) - mf; } /* input: abs(a*b) < 2 * m^2, output: abs(r) < m */ static inline __m256d ntt_mul_mod(__m256d a, __m256d b, __m256d mf, __m256d m_inv) { __m256d r, q, ab1, ab0, qm0, qm1; ab1 = a * b; q = _mm256_round_pd(ab1 * m_inv, 0); /* round to nearest */ qm1 = q * mf; qm0 = _mm256_fmsub_pd(q, mf, qm1); /* low part */ ab0 = _mm256_fmsub_pd(a, b, ab1); /* low part */ r = (ab1 - qm1) + (ab0 - qm0); return r; } static void *bf_aligned_malloc(bf_context_t *s, size_t size, size_t align) { void *ptr; void **ptr1; ptr = bf_malloc(s, size + sizeof(void *) + align - 1); if (!ptr) return NULL; ptr1 = (void **)(((uintptr_t)ptr + sizeof(void *) + align - 1) & ~(align - 1)); ptr1[-1] = ptr; return ptr1; } static void bf_aligned_free(bf_context_t *s, void *ptr) { if (!ptr) return; bf_free(s, ((void **)ptr)[-1]); } static void *ntt_malloc(BFNTTState *s, size_t size) { return bf_aligned_malloc(s->ctx, size, 64); } static void ntt_free(BFNTTState *s, void *ptr) { bf_aligned_free(s->ctx, ptr); } static no_inline int ntt_fft(BFNTTState *s, NTTLimb *out_buf, NTTLimb *in_buf, NTTLimb *tmp_buf, int fft_len_log2, int inverse, int m_idx) { limb_t nb_blocks, fft_per_block, p, k, n, stride_in, i, j; NTTLimb *tab_in, *tab_out, *tmp, *trig; __m256d m_inv, mf, m2f, c, a0, a1, b0, b1; limb_t m; int l; m = ntt_mods[m_idx]; m_inv = _mm256_set1_pd(1.0 / (double)m); mf = _mm256_set1_pd(m); m2f = _mm256_set1_pd(m * 2); n = (limb_t)1 << fft_len_log2; assert(n >= 8); stride_in = n / 2; tab_in = in_buf; tab_out = tmp_buf; trig = get_trig(s, fft_len_log2, inverse, m_idx); if (!trig) return -1; p = 0; for(k = 0; k < stride_in; k += 4) { a0 = _mm256_load_pd(&tab_in[k]); a1 = _mm256_load_pd(&tab_in[k + stride_in]); c = _mm256_load_pd(trig); trig += 4; b0 = ntt_mod(a0 + a1, mf, m2f); b1 = ntt_mul_mod(a0 - a1, c, mf, m_inv); a0 = _mm256_permute2f128_pd(b0, b1, 0x20); a1 = _mm256_permute2f128_pd(b0, b1, 0x31); a0 = _mm256_permute4x64_pd(a0, 0xd8); a1 = _mm256_permute4x64_pd(a1, 0xd8); _mm256_store_pd(&tab_out[p], a0); _mm256_store_pd(&tab_out[p + 4], a1); p += 2 * 4; } tmp = tab_in; tab_in = tab_out; tab_out = tmp; trig = get_trig(s, fft_len_log2 - 1, inverse, m_idx); if (!trig) return -1; p = 0; for(k = 0; k < stride_in; k += 4) { a0 = _mm256_load_pd(&tab_in[k]); a1 = _mm256_load_pd(&tab_in[k + stride_in]); c = _mm256_setr_pd(trig[0], trig[0], trig[1], trig[1]); trig += 2; b0 = ntt_mod(a0 + a1, mf, m2f); b1 = ntt_mul_mod(a0 - a1, c, mf, m_inv); a0 = _mm256_permute2f128_pd(b0, b1, 0x20); a1 = _mm256_permute2f128_pd(b0, b1, 0x31); _mm256_store_pd(&tab_out[p], a0); _mm256_store_pd(&tab_out[p + 4], a1); p += 2 * 4; } tmp = tab_in; tab_in = tab_out; tab_out = tmp; nb_blocks = n / 4; fft_per_block = 4; l = fft_len_log2 - 2; while (nb_blocks != 2) { nb_blocks >>= 1; p = 0; k = 0; trig = get_trig(s, l, inverse, m_idx); if (!trig) return -1; for(i = 0; i < nb_blocks; i++) { c = _mm256_set1_pd(trig[0]); trig++; for(j = 0; j < fft_per_block; j += 4) { a0 = _mm256_load_pd(&tab_in[k + j]); a1 = _mm256_load_pd(&tab_in[k + j + stride_in]); b0 = ntt_mod(a0 + a1, mf, m2f); b1 = ntt_mul_mod(a0 - a1, c, mf, m_inv); _mm256_store_pd(&tab_out[p + j], b0); _mm256_store_pd(&tab_out[p + j + fft_per_block], b1); } k += fft_per_block; p += 2 * fft_per_block; } fft_per_block <<= 1; l--; tmp = tab_in; tab_in = tab_out; tab_out = tmp; } tab_out = out_buf; for(k = 0; k < stride_in; k += 4) { a0 = _mm256_load_pd(&tab_in[k]); a1 = _mm256_load_pd(&tab_in[k + stride_in]); b0 = ntt_mod(a0 + a1, mf, m2f); b1 = ntt_mod(a0 - a1, mf, m2f); _mm256_store_pd(&tab_out[k], b0); _mm256_store_pd(&tab_out[k + stride_in], b1); } return 0; } static void ntt_vec_mul(BFNTTState *s, NTTLimb *tab1, NTTLimb *tab2, limb_t fft_len_log2, int k_tot, int m_idx) { limb_t i, c_inv, n, m; __m256d m_inv, mf, a, b, c; m = ntt_mods[m_idx]; c_inv = s->ntt_len_inv[m_idx][k_tot][0]; m_inv = _mm256_set1_pd(1.0 / (double)m); mf = _mm256_set1_pd(m); c = _mm256_set1_pd(int_to_ntt_limb(c_inv, m)); n = (limb_t)1 << fft_len_log2; for(i = 0; i < n; i += 4) { a = _mm256_load_pd(&tab1[i]); b = _mm256_load_pd(&tab2[i]); a = ntt_mul_mod(a, b, mf, m_inv); a = ntt_mul_mod(a, c, mf, m_inv); _mm256_store_pd(&tab1[i], a); } } static no_inline void mul_trig(NTTLimb *buf, limb_t n, limb_t c1, limb_t m, limb_t m_inv1) { limb_t i, c2, c3, c4; __m256d c, c_mul, a0, mf, m_inv; assert(n >= 2); mf = _mm256_set1_pd(m); m_inv = _mm256_set1_pd(1.0 / (double)m); c2 = mul_mod_fast(c1, c1, m, m_inv1); c3 = mul_mod_fast(c2, c1, m, m_inv1); c4 = mul_mod_fast(c2, c2, m, m_inv1); c = _mm256_setr_pd(1, int_to_ntt_limb(c1, m), int_to_ntt_limb(c2, m), int_to_ntt_limb(c3, m)); c_mul = _mm256_set1_pd(int_to_ntt_limb(c4, m)); for(i = 0; i < n; i += 4) { a0 = _mm256_load_pd(&buf[i]); a0 = ntt_mul_mod(a0, c, mf, m_inv); _mm256_store_pd(&buf[i], a0); c = ntt_mul_mod(c, c_mul, mf, m_inv); } } #else static void *ntt_malloc(BFNTTState *s, size_t size) { return bf_malloc(s->ctx, size); } static void ntt_free(BFNTTState *s, void *ptr) { bf_free(s->ctx, ptr); } static inline limb_t ntt_limb_to_int(NTTLimb a, limb_t m) { if (a >= m) a -= m; return a; } static inline NTTLimb int_to_ntt_limb(slimb_t a, limb_t m) { return a; } static no_inline int ntt_fft(BFNTTState *s, NTTLimb *out_buf, NTTLimb *in_buf, NTTLimb *tmp_buf, int fft_len_log2, int inverse, int m_idx) { limb_t nb_blocks, fft_per_block, p, k, n, stride_in, i, j, m, m2; NTTLimb *tab_in, *tab_out, *tmp, a0, a1, b0, b1, c, *trig, c_inv; int l; m = ntt_mods[m_idx]; m2 = 2 * m; n = (limb_t)1 << fft_len_log2; nb_blocks = n; fft_per_block = 1; stride_in = n / 2; tab_in = in_buf; tab_out = tmp_buf; l = fft_len_log2; while (nb_blocks != 2) { nb_blocks >>= 1; p = 0; k = 0; trig = get_trig(s, l, inverse, m_idx); if (!trig) return -1; for(i = 0; i < nb_blocks; i++) { c = trig[0]; c_inv = trig[1]; trig += 2; for(j = 0; j < fft_per_block; j++) { a0 = tab_in[k + j]; a1 = tab_in[k + j + stride_in]; b0 = add_mod(a0, a1, m2); b1 = a0 - a1 + m2; b1 = mul_mod_fast3(b1, c, m, c_inv); tab_out[p + j] = b0; tab_out[p + j + fft_per_block] = b1; } k += fft_per_block; p += 2 * fft_per_block; } fft_per_block <<= 1; l--; tmp = tab_in; tab_in = tab_out; tab_out = tmp; } /* no twiddle in last step */ tab_out = out_buf; for(k = 0; k < stride_in; k++) { a0 = tab_in[k]; a1 = tab_in[k + stride_in]; b0 = add_mod(a0, a1, m2); b1 = sub_mod(a0, a1, m2); tab_out[k] = b0; tab_out[k + stride_in] = b1; } return 0; } static void ntt_vec_mul(BFNTTState *s, NTTLimb *tab1, NTTLimb *tab2, int fft_len_log2, int k_tot, int m_idx) { limb_t i, norm, norm_inv, a, n, m, m_inv; m = ntt_mods[m_idx]; m_inv = s->ntt_mods_div[m_idx]; norm = s->ntt_len_inv[m_idx][k_tot][0]; norm_inv = s->ntt_len_inv[m_idx][k_tot][1]; n = (limb_t)1 << fft_len_log2; for(i = 0; i < n; i++) { a = tab1[i]; /* need to reduce the range so that the product is < 2^(LIMB_BITS+NTT_MOD_LOG2_MIN) */ if (a >= m) a -= m; a = mul_mod_fast(a, tab2[i], m, m_inv); a = mul_mod_fast3(a, norm, m, norm_inv); tab1[i] = a; } } static no_inline void mul_trig(NTTLimb *buf, limb_t n, limb_t c_mul, limb_t m, limb_t m_inv) { limb_t i, c0, c_mul_inv; c0 = 1; c_mul_inv = init_mul_mod_fast2(c_mul, m); for(i = 0; i < n; i++) { buf[i] = mul_mod_fast(buf[i], c0, m, m_inv); c0 = mul_mod_fast2(c0, c_mul, m, c_mul_inv); } } #endif /* !AVX2 */ static no_inline NTTLimb *get_trig(BFNTTState *s, int k, int inverse, int m_idx) { NTTLimb *tab; limb_t i, n2, c, c_mul, m, c_mul_inv; if (k > NTT_TRIG_K_MAX) return NULL; tab = s->ntt_trig[m_idx][inverse][k]; if (tab) return tab; n2 = (limb_t)1 << (k - 1); m = ntt_mods[m_idx]; #ifdef __AVX2__ tab = ntt_malloc(s, sizeof(NTTLimb) * n2); #else tab = ntt_malloc(s, sizeof(NTTLimb) * n2 * 2); #endif if (!tab) return NULL; c = 1; c_mul = s->ntt_proot_pow[m_idx][inverse][k]; c_mul_inv = s->ntt_proot_pow_inv[m_idx][inverse][k]; for(i = 0; i < n2; i++) { #ifdef __AVX2__ tab[i] = int_to_ntt_limb2(c, m); #else tab[2 * i] = int_to_ntt_limb(c, m); tab[2 * i + 1] = init_mul_mod_fast2(c, m); #endif c = mul_mod_fast2(c, c_mul, m, c_mul_inv); } s->ntt_trig[m_idx][inverse][k] = tab; return tab; } void fft_clear_cache(bf_context_t *s1) { int m_idx, inverse, k; BFNTTState *s = s1->ntt_state; if (s) { for(m_idx = 0; m_idx < NB_MODS; m_idx++) { for(inverse = 0; inverse < 2; inverse++) { for(k = 0; k < NTT_TRIG_K_MAX + 1; k++) { if (s->ntt_trig[m_idx][inverse][k]) { ntt_free(s, s->ntt_trig[m_idx][inverse][k]); s->ntt_trig[m_idx][inverse][k] = NULL; } } } } #if defined(__AVX2__) bf_aligned_free(s1, s); #else bf_free(s1, s); #endif s1->ntt_state = NULL; } } #define STRIP_LEN 16 /* dst = buf1, src = buf2 */ static int ntt_fft_partial(BFNTTState *s, NTTLimb *buf1, int k1, int k2, limb_t n1, limb_t n2, int inverse, limb_t m_idx) { limb_t i, j, c_mul, c0, m, m_inv, strip_len, l; NTTLimb *buf2, *buf3; buf2 = NULL; buf3 = ntt_malloc(s, sizeof(NTTLimb) * n1); if (!buf3) goto fail; if (k2 == 0) { if (ntt_fft(s, buf1, buf1, buf3, k1, inverse, m_idx)) goto fail; } else { strip_len = STRIP_LEN; buf2 = ntt_malloc(s, sizeof(NTTLimb) * n1 * strip_len); if (!buf2) goto fail; m = ntt_mods[m_idx]; m_inv = s->ntt_mods_div[m_idx]; c0 = s->ntt_proot_pow[m_idx][inverse][k1 + k2]; c_mul = 1; assert((n2 % strip_len) == 0); for(j = 0; j < n2; j += strip_len) { for(i = 0; i < n1; i++) { for(l = 0; l < strip_len; l++) { buf2[i + l * n1] = buf1[i * n2 + (j + l)]; } } for(l = 0; l < strip_len; l++) { if (inverse) mul_trig(buf2 + l * n1, n1, c_mul, m, m_inv); if (ntt_fft(s, buf2 + l * n1, buf2 + l * n1, buf3, k1, inverse, m_idx)) goto fail; if (!inverse) mul_trig(buf2 + l * n1, n1, c_mul, m, m_inv); c_mul = mul_mod_fast(c_mul, c0, m, m_inv); } for(i = 0; i < n1; i++) { for(l = 0; l < strip_len; l++) { buf1[i * n2 + (j + l)] = buf2[i + l *n1]; } } } ntt_free(s, buf2); } ntt_free(s, buf3); return 0; fail: ntt_free(s, buf2); ntt_free(s, buf3); return -1; } /* dst = buf1, src = buf2, tmp = buf3 */ static int ntt_conv(BFNTTState *s, NTTLimb *buf1, NTTLimb *buf2, int k, int k_tot, limb_t m_idx) { limb_t n1, n2, i; int k1, k2; if (k <= NTT_TRIG_K_MAX) { k1 = k; } else { /* recursive split of the FFT */ k1 = bf_min(k / 2, NTT_TRIG_K_MAX); } k2 = k - k1; n1 = (limb_t)1 << k1; n2 = (limb_t)1 << k2; if (ntt_fft_partial(s, buf1, k1, k2, n1, n2, 0, m_idx)) return -1; if (ntt_fft_partial(s, buf2, k1, k2, n1, n2, 0, m_idx)) return -1; if (k2 == 0) { ntt_vec_mul(s, buf1, buf2, k, k_tot, m_idx); } else { for(i = 0; i < n1; i++) { ntt_conv(s, buf1 + i * n2, buf2 + i * n2, k2, k_tot, m_idx); } } if (ntt_fft_partial(s, buf1, k1, k2, n1, n2, 1, m_idx)) return -1; return 0; } static no_inline void limb_to_ntt(BFNTTState *s, NTTLimb *tabr, limb_t fft_len, const limb_t *taba, limb_t a_len, int dpl, int first_m_idx, int nb_mods) { slimb_t i, n; dlimb_t a, b; int j, shift; limb_t base_mask1, a0, a1, a2, r, m, m_inv; #if 0 for(i = 0; i < a_len; i++) { printf("%" PRId64 ": " FMT_LIMB "\n", (int64_t)i, taba[i]); } #endif memset(tabr, 0, sizeof(NTTLimb) * fft_len * nb_mods); shift = dpl & (LIMB_BITS - 1); if (shift == 0) base_mask1 = -1; else base_mask1 = ((limb_t)1 << shift) - 1; n = bf_min(fft_len, (a_len * LIMB_BITS + dpl - 1) / dpl); for(i = 0; i < n; i++) { a0 = get_bits(taba, a_len, i * dpl); if (dpl <= LIMB_BITS) { a0 &= base_mask1; a = a0; } else { a1 = get_bits(taba, a_len, i * dpl + LIMB_BITS); if (dpl <= (LIMB_BITS + NTT_MOD_LOG2_MIN)) { a = a0 | ((dlimb_t)(a1 & base_mask1) << LIMB_BITS); } else { if (dpl > 2 * LIMB_BITS) { a2 = get_bits(taba, a_len, i * dpl + LIMB_BITS * 2) & base_mask1; } else { a1 &= base_mask1; a2 = 0; } // printf("a=0x%016lx%016lx%016lx\n", a2, a1, a0); a = (a0 >> (LIMB_BITS - NTT_MOD_LOG2_MAX + NTT_MOD_LOG2_MIN)) | ((dlimb_t)a1 << (NTT_MOD_LOG2_MAX - NTT_MOD_LOG2_MIN)) | ((dlimb_t)a2 << (LIMB_BITS + NTT_MOD_LOG2_MAX - NTT_MOD_LOG2_MIN)); a0 &= ((limb_t)1 << (LIMB_BITS - NTT_MOD_LOG2_MAX + NTT_MOD_LOG2_MIN)) - 1; } } for(j = 0; j < nb_mods; j++) { m = ntt_mods[first_m_idx + j]; m_inv = s->ntt_mods_div[first_m_idx + j]; r = mod_fast(a, m, m_inv); if (dpl > (LIMB_BITS + NTT_MOD_LOG2_MIN)) { b = ((dlimb_t)r << (LIMB_BITS - NTT_MOD_LOG2_MAX + NTT_MOD_LOG2_MIN)) | a0; r = mod_fast(b, m, m_inv); } tabr[i + j * fft_len] = int_to_ntt_limb(r, m); } } } #if defined(__AVX2__) #define VEC_LEN 4 typedef union { __m256d v; double d[4]; } VecUnion; static no_inline void ntt_to_limb(BFNTTState *s, limb_t *tabr, limb_t r_len, const NTTLimb *buf, int fft_len_log2, int dpl, int nb_mods) { const limb_t *mods = ntt_mods + NB_MODS - nb_mods; const __m256d *mods_cr_vec, *mf, *m_inv; VecUnion y[NB_MODS]; limb_t u[NB_MODS], carry[NB_MODS], fft_len, base_mask1, r; slimb_t i, len, pos; int j, k, l, shift, n_limb1, p; dlimb_t t; j = NB_MODS * (NB_MODS - 1) / 2 - nb_mods * (nb_mods - 1) / 2; mods_cr_vec = s->ntt_mods_cr_vec + j; mf = s->ntt_mods_vec + NB_MODS - nb_mods; m_inv = s->ntt_mods_inv_vec + NB_MODS - nb_mods; shift = dpl & (LIMB_BITS - 1); if (shift == 0) base_mask1 = -1; else base_mask1 = ((limb_t)1 << shift) - 1; n_limb1 = ((unsigned)dpl - 1) / LIMB_BITS; for(j = 0; j < NB_MODS; j++) carry[j] = 0; for(j = 0; j < NB_MODS; j++) u[j] = 0; /* avoid warnings */ memset(tabr, 0, sizeof(limb_t) * r_len); fft_len = (limb_t)1 << fft_len_log2; len = bf_min(fft_len, (r_len * LIMB_BITS + dpl - 1) / dpl); len = (len + VEC_LEN - 1) & ~(VEC_LEN - 1); i = 0; while (i < len) { for(j = 0; j < nb_mods; j++) y[j].v = *(__m256d *)&buf[i + fft_len * j]; /* Chinese remainder to get mixed radix representation */ l = 0; for(j = 0; j < nb_mods - 1; j++) { y[j].v = ntt_mod1(y[j].v, mf[j]); for(k = j + 1; k < nb_mods; k++) { y[k].v = ntt_mul_mod(y[k].v - y[j].v, mods_cr_vec[l], mf[k], m_inv[k]); l++; } } y[j].v = ntt_mod1(y[j].v, mf[j]); for(p = 0; p < VEC_LEN; p++) { /* back to normal representation */ u[0] = (int64_t)y[nb_mods - 1].d[p]; l = 1; for(j = nb_mods - 2; j >= 1; j--) { r = (int64_t)y[j].d[p]; for(k = 0; k < l; k++) { t = (dlimb_t)u[k] * mods[j] + r; r = t >> LIMB_BITS; u[k] = t; } u[l] = r; l++; } /* XXX: for nb_mods = 5, l should be 4 */ /* last step adds the carry */ r = (int64_t)y[0].d[p]; for(k = 0; k < l; k++) { t = (dlimb_t)u[k] * mods[j] + r + carry[k]; r = t >> LIMB_BITS; u[k] = t; } u[l] = r + carry[l]; #if 0 printf("%" PRId64 ": ", i); for(j = nb_mods - 1; j >= 0; j--) { printf(" %019" PRIu64, u[j]); } printf("\n"); #endif /* write the digits */ pos = i * dpl; for(j = 0; j < n_limb1; j++) { put_bits(tabr, r_len, pos, u[j]); pos += LIMB_BITS; } put_bits(tabr, r_len, pos, u[n_limb1] & base_mask1); /* shift by dpl digits and set the carry */ if (shift == 0) { for(j = n_limb1 + 1; j < nb_mods; j++) carry[j - (n_limb1 + 1)] = u[j]; } else { for(j = n_limb1; j < nb_mods - 1; j++) { carry[j - n_limb1] = (u[j] >> shift) | (u[j + 1] << (LIMB_BITS - shift)); } carry[nb_mods - 1 - n_limb1] = u[nb_mods - 1] >> shift; } i++; } } } #else static no_inline void ntt_to_limb(BFNTTState *s, limb_t *tabr, limb_t r_len, const NTTLimb *buf, int fft_len_log2, int dpl, int nb_mods) { const limb_t *mods = ntt_mods + NB_MODS - nb_mods; const limb_t *mods_cr, *mods_cr_inv; limb_t y[NB_MODS], u[NB_MODS], carry[NB_MODS], fft_len, base_mask1, r; slimb_t i, len, pos; int j, k, l, shift, n_limb1; dlimb_t t; j = NB_MODS * (NB_MODS - 1) / 2 - nb_mods * (nb_mods - 1) / 2; mods_cr = ntt_mods_cr + j; mods_cr_inv = s->ntt_mods_cr_inv + j; shift = dpl & (LIMB_BITS - 1); if (shift == 0) base_mask1 = -1; else base_mask1 = ((limb_t)1 << shift) - 1; n_limb1 = ((unsigned)dpl - 1) / LIMB_BITS; for(j = 0; j < NB_MODS; j++) carry[j] = 0; for(j = 0; j < NB_MODS; j++) u[j] = 0; /* avoid warnings */ memset(tabr, 0, sizeof(limb_t) * r_len); fft_len = (limb_t)1 << fft_len_log2; len = bf_min(fft_len, (r_len * LIMB_BITS + dpl - 1) / dpl); for(i = 0; i < len; i++) { for(j = 0; j < nb_mods; j++) { y[j] = ntt_limb_to_int(buf[i + fft_len * j], mods[j]); } /* Chinese remainder to get mixed radix representation */ l = 0; for(j = 0; j < nb_mods - 1; j++) { for(k = j + 1; k < nb_mods; k++) { limb_t m; m = mods[k]; /* Note: there is no overflow in the sub_mod() because the modulos are sorted by increasing order */ y[k] = mul_mod_fast2(y[k] - y[j] + m, mods_cr[l], m, mods_cr_inv[l]); l++; } } /* back to normal representation */ u[0] = y[nb_mods - 1]; l = 1; for(j = nb_mods - 2; j >= 1; j--) { r = y[j]; for(k = 0; k < l; k++) { t = (dlimb_t)u[k] * mods[j] + r; r = t >> LIMB_BITS; u[k] = t; } u[l] = r; l++; } /* last step adds the carry */ r = y[0]; for(k = 0; k < l; k++) { t = (dlimb_t)u[k] * mods[j] + r + carry[k]; r = t >> LIMB_BITS; u[k] = t; } u[l] = r + carry[l]; #if 0 printf("%" PRId64 ": ", (int64_t)i); for(j = nb_mods - 1; j >= 0; j--) { printf(" " FMT_LIMB, u[j]); } printf("\n"); #endif /* write the digits */ pos = i * dpl; for(j = 0; j < n_limb1; j++) { put_bits(tabr, r_len, pos, u[j]); pos += LIMB_BITS; } put_bits(tabr, r_len, pos, u[n_limb1] & base_mask1); /* shift by dpl digits and set the carry */ if (shift == 0) { for(j = n_limb1 + 1; j < nb_mods; j++) carry[j - (n_limb1 + 1)] = u[j]; } else { for(j = n_limb1; j < nb_mods - 1; j++) { carry[j - n_limb1] = (u[j] >> shift) | (u[j + 1] << (LIMB_BITS - shift)); } carry[nb_mods - 1 - n_limb1] = u[nb_mods - 1] >> shift; } } } #endif static int ntt_static_init(bf_context_t *s1) { BFNTTState *s; int inverse, i, j, k, l; limb_t c, c_inv, c_inv2, m, m_inv; if (s1->ntt_state) return 0; #if defined(__AVX2__) s = bf_aligned_malloc(s1, sizeof(*s), 64); #else s = bf_malloc(s1, sizeof(*s)); #endif if (!s) return -1; memset(s, 0, sizeof(*s)); s1->ntt_state = s; s->ctx = s1; for(j = 0; j < NB_MODS; j++) { m = ntt_mods[j]; m_inv = init_mul_mod_fast(m); s->ntt_mods_div[j] = m_inv; #if defined(__AVX2__) s->ntt_mods_vec[j] = _mm256_set1_pd(m); s->ntt_mods_inv_vec[j] = _mm256_set1_pd(1.0 / (double)m); #endif c_inv2 = (m + 1) / 2; /* 1/2 */ c_inv = 1; for(i = 0; i <= NTT_PROOT_2EXP; i++) { s->ntt_len_inv[j][i][0] = c_inv; s->ntt_len_inv[j][i][1] = init_mul_mod_fast2(c_inv, m); c_inv = mul_mod_fast(c_inv, c_inv2, m, m_inv); } for(inverse = 0; inverse < 2; inverse++) { c = ntt_proot[inverse][j]; for(i = 0; i < NTT_PROOT_2EXP; i++) { s->ntt_proot_pow[j][inverse][NTT_PROOT_2EXP - i] = c; s->ntt_proot_pow_inv[j][inverse][NTT_PROOT_2EXP - i] = init_mul_mod_fast2(c, m); c = mul_mod_fast(c, c, m, m_inv); } } } l = 0; for(j = 0; j < NB_MODS - 1; j++) { for(k = j + 1; k < NB_MODS; k++) { #if defined(__AVX2__) s->ntt_mods_cr_vec[l] = _mm256_set1_pd(int_to_ntt_limb2(ntt_mods_cr[l], ntt_mods[k])); #else s->ntt_mods_cr_inv[l] = init_mul_mod_fast2(ntt_mods_cr[l], ntt_mods[k]); #endif l++; } } return 0; } int bf_get_fft_size(int *pdpl, int *pnb_mods, limb_t len) { int dpl, fft_len_log2, n_bits, nb_mods, dpl_found, fft_len_log2_found; int int_bits, nb_mods_found; limb_t cost, min_cost; min_cost = -1; dpl_found = 0; nb_mods_found = 4; fft_len_log2_found = 0; for(nb_mods = 3; nb_mods <= NB_MODS; nb_mods++) { int_bits = ntt_int_bits[NB_MODS - nb_mods]; dpl = bf_min((int_bits - 4) / 2, 2 * LIMB_BITS + 2 * NTT_MOD_LOG2_MIN - NTT_MOD_LOG2_MAX); for(;;) { fft_len_log2 = ceil_log2((len * LIMB_BITS + dpl - 1) / dpl); if (fft_len_log2 > NTT_PROOT_2EXP) goto next; n_bits = fft_len_log2 + 2 * dpl; if (n_bits <= int_bits) { cost = ((limb_t)(fft_len_log2 + 1) << fft_len_log2) * nb_mods; // printf("n=%d dpl=%d: cost=%" PRId64 "\n", nb_mods, dpl, (int64_t)cost); if (cost < min_cost) { min_cost = cost; dpl_found = dpl; nb_mods_found = nb_mods; fft_len_log2_found = fft_len_log2; } break; } dpl--; if (dpl == 0) break; } next: ; } if (!dpl_found) abort(); /* limit dpl if possible to reduce fixed cost of limb/NTT conversion */ if (dpl_found > (LIMB_BITS + NTT_MOD_LOG2_MIN) && ((limb_t)(LIMB_BITS + NTT_MOD_LOG2_MIN) << fft_len_log2_found) >= len * LIMB_BITS) { dpl_found = LIMB_BITS + NTT_MOD_LOG2_MIN; } *pnb_mods = nb_mods_found; *pdpl = dpl_found; return fft_len_log2_found; } /* return 0 if OK, -1 if memory error */ static no_inline int fft_mul(bf_context_t *s1, bf_t *res, limb_t *a_tab, limb_t a_len, limb_t *b_tab, limb_t b_len, int mul_flags) { BFNTTState *s; int dpl, fft_len_log2, j, nb_mods, reduced_mem; slimb_t len, fft_len; NTTLimb *buf1, *buf2, *ptr; #if defined(USE_MUL_CHECK) limb_t ha, hb, hr, h_ref; #endif if (ntt_static_init(s1)) return -1; s = s1->ntt_state; /* find the optimal number of digits per limb (dpl) */ len = a_len + b_len; fft_len_log2 = bf_get_fft_size(&dpl, &nb_mods, len); fft_len = (uint64_t)1 << fft_len_log2; // printf("len=%" PRId64 " fft_len_log2=%d dpl=%d\n", len, fft_len_log2, dpl); #if defined(USE_MUL_CHECK) ha = mp_mod1(a_tab, a_len, BF_CHKSUM_MOD, 0); hb = mp_mod1(b_tab, b_len, BF_CHKSUM_MOD, 0); #endif if ((mul_flags & (FFT_MUL_R_OVERLAP_A | FFT_MUL_R_OVERLAP_B)) == 0) { if (!(mul_flags & FFT_MUL_R_NORESIZE)) bf_resize(res, 0); } else if (mul_flags & FFT_MUL_R_OVERLAP_B) { limb_t *tmp_tab, tmp_len; /* it is better to free 'b' first */ tmp_tab = a_tab; a_tab = b_tab; b_tab = tmp_tab; tmp_len = a_len; a_len = b_len; b_len = tmp_len; } buf1 = ntt_malloc(s, sizeof(NTTLimb) * fft_len * nb_mods); if (!buf1) return -1; limb_to_ntt(s, buf1, fft_len, a_tab, a_len, dpl, NB_MODS - nb_mods, nb_mods); if ((mul_flags & (FFT_MUL_R_OVERLAP_A | FFT_MUL_R_OVERLAP_B)) == FFT_MUL_R_OVERLAP_A) { if (!(mul_flags & FFT_MUL_R_NORESIZE)) bf_resize(res, 0); } reduced_mem = (fft_len_log2 >= 14); if (!reduced_mem) { buf2 = ntt_malloc(s, sizeof(NTTLimb) * fft_len * nb_mods); if (!buf2) goto fail; limb_to_ntt(s, buf2, fft_len, b_tab, b_len, dpl, NB_MODS - nb_mods, nb_mods); if (!(mul_flags & FFT_MUL_R_NORESIZE)) bf_resize(res, 0); /* in case res == b */ } else { buf2 = ntt_malloc(s, sizeof(NTTLimb) * fft_len); if (!buf2) goto fail; } for(j = 0; j < nb_mods; j++) { if (reduced_mem) { limb_to_ntt(s, buf2, fft_len, b_tab, b_len, dpl, NB_MODS - nb_mods + j, 1); ptr = buf2; } else { ptr = buf2 + fft_len * j; } if (ntt_conv(s, buf1 + fft_len * j, ptr, fft_len_log2, fft_len_log2, j + NB_MODS - nb_mods)) goto fail; } if (!(mul_flags & FFT_MUL_R_NORESIZE)) bf_resize(res, 0); /* in case res == b and reduced mem */ ntt_free(s, buf2); buf2 = NULL; if (!(mul_flags & FFT_MUL_R_NORESIZE)) { if (bf_resize(res, len)) goto fail; } ntt_to_limb(s, res->tab, len, buf1, fft_len_log2, dpl, nb_mods); ntt_free(s, buf1); #if defined(USE_MUL_CHECK) hr = mp_mod1(res->tab, len, BF_CHKSUM_MOD, 0); h_ref = mul_mod(ha, hb, BF_CHKSUM_MOD); if (hr != h_ref) { printf("ntt_mul_error: len=%" PRId_LIMB " fft_len_log2=%d dpl=%d nb_mods=%d\n", len, fft_len_log2, dpl, nb_mods); // printf("ha=0x" FMT_LIMB" hb=0x" FMT_LIMB " hr=0x" FMT_LIMB " expected=0x" FMT_LIMB "\n", ha, hb, hr, h_ref); exit(1); } #endif return 0; fail: ntt_free(s, buf1); ntt_free(s, buf2); return -1; } #else /* USE_FFT_MUL */ int bf_get_fft_size(int *pdpl, int *pnb_mods, limb_t len) { return 0; } #endif /* !USE_FFT_MUL */ ================================================ FILE: libbf.h ================================================ /* * Tiny arbitrary precision floating point library * * Copyright (c) 2017-2020 Fabrice Bellard * * 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. */ #ifndef LIBBF_H #define LIBBF_H #include #include #if defined(__x86_64__) #define LIMB_LOG2_BITS 6 #else #define LIMB_LOG2_BITS 5 #endif #define LIMB_BITS (1 << LIMB_LOG2_BITS) #if LIMB_BITS == 64 typedef __int128 int128_t; typedef unsigned __int128 uint128_t; typedef int64_t slimb_t; typedef uint64_t limb_t; typedef uint128_t dlimb_t; #define BF_RAW_EXP_MIN INT64_MIN #define BF_RAW_EXP_MAX INT64_MAX #define LIMB_DIGITS 19 #define BF_DEC_BASE UINT64_C(10000000000000000000) #else typedef int32_t slimb_t; typedef uint32_t limb_t; typedef uint64_t dlimb_t; #define BF_RAW_EXP_MIN INT32_MIN #define BF_RAW_EXP_MAX INT32_MAX #define LIMB_DIGITS 9 #define BF_DEC_BASE 1000000000U #endif /* in bits */ /* minimum number of bits for the exponent */ #define BF_EXP_BITS_MIN 3 /* maximum number of bits for the exponent */ #define BF_EXP_BITS_MAX (LIMB_BITS - 3) /* extended range for exponent, used internally */ #define BF_EXT_EXP_BITS_MAX (BF_EXP_BITS_MAX + 1) /* minimum possible precision */ #define BF_PREC_MIN 2 /* minimum possible precision */ #define BF_PREC_MAX (((limb_t)1 << (LIMB_BITS - 2)) - 2) /* some operations support infinite precision */ #define BF_PREC_INF (BF_PREC_MAX + 1) /* infinite precision */ #if LIMB_BITS == 64 #define BF_CHKSUM_MOD (UINT64_C(975620677) * UINT64_C(9795002197)) #else #define BF_CHKSUM_MOD 975620677U #endif #define BF_EXP_ZERO BF_RAW_EXP_MIN #define BF_EXP_INF (BF_RAW_EXP_MAX - 1) #define BF_EXP_NAN BF_RAW_EXP_MAX /* +/-zero is represented with expn = BF_EXP_ZERO and len = 0, +/-infinity is represented with expn = BF_EXP_INF and len = 0, NaN is represented with expn = BF_EXP_NAN and len = 0 (sign is ignored) */ typedef struct { struct bf_context_t *ctx; int sign; slimb_t expn; limb_t len; limb_t *tab; } bf_t; typedef struct { /* must be kept identical to bf_t */ struct bf_context_t *ctx; int sign; slimb_t expn; limb_t len; limb_t *tab; } bfdec_t; typedef enum { BF_RNDN, /* round to nearest, ties to even */ BF_RNDZ, /* round to zero */ BF_RNDD, /* round to -inf (the code relies on (BF_RNDD xor BF_RNDU) = 1) */ BF_RNDU, /* round to +inf */ BF_RNDNA, /* round to nearest, ties away from zero */ BF_RNDA, /* round away from zero */ BF_RNDF, /* faithful rounding (nondeterministic, either RNDD or RNDU, inexact flag is always set) */ } bf_rnd_t; /* allow subnormal numbers. Only available if the number of exponent bits is <= BF_EXP_BITS_USER_MAX and prec != BF_PREC_INF. */ #define BF_FLAG_SUBNORMAL (1 << 3) /* 'prec' is the precision after the radix point instead of the whole mantissa. Can only be used with bf_round() and bfdec_[add|sub|mul|div|sqrt|round](). */ #define BF_FLAG_RADPNT_PREC (1 << 4) #define BF_RND_MASK 0x7 #define BF_EXP_BITS_SHIFT 5 #define BF_EXP_BITS_MASK 0x3f /* shortcut for bf_set_exp_bits(BF_EXT_EXP_BITS_MAX) */ #define BF_FLAG_EXT_EXP (BF_EXP_BITS_MASK << BF_EXP_BITS_SHIFT) /* contains the rounding mode and number of exponents bits */ typedef uint32_t bf_flags_t; typedef void *bf_realloc_func_t(void *opaque, void *ptr, size_t size); typedef struct { bf_t val; limb_t prec; } BFConstCache; typedef struct bf_context_t { void *realloc_opaque; bf_realloc_func_t *realloc_func; BFConstCache log2_cache; BFConstCache pi_cache; struct BFNTTState *ntt_state; } bf_context_t; static inline int bf_get_exp_bits(bf_flags_t flags) { int e; e = (flags >> BF_EXP_BITS_SHIFT) & BF_EXP_BITS_MASK; if (e == BF_EXP_BITS_MASK) return BF_EXP_BITS_MAX + 1; else return BF_EXP_BITS_MAX - e; } static inline bf_flags_t bf_set_exp_bits(int n) { return ((BF_EXP_BITS_MAX - n) & BF_EXP_BITS_MASK) << BF_EXP_BITS_SHIFT; } /* returned status */ #define BF_ST_INVALID_OP (1 << 0) #define BF_ST_DIVIDE_ZERO (1 << 1) #define BF_ST_OVERFLOW (1 << 2) #define BF_ST_UNDERFLOW (1 << 3) #define BF_ST_INEXACT (1 << 4) /* indicate that a memory allocation error occured. NaN is returned */ #define BF_ST_MEM_ERROR (1 << 5) #define BF_RADIX_MAX 36 /* maximum radix for bf_atof() and bf_ftoa() */ static inline slimb_t bf_max(slimb_t a, slimb_t b) { if (a > b) return a; else return b; } static inline slimb_t bf_min(slimb_t a, slimb_t b) { if (a < b) return a; else return b; } void bf_context_init(bf_context_t *s, bf_realloc_func_t *realloc_func, void *realloc_opaque); void bf_context_end(bf_context_t *s); /* free memory allocated for the bf cache data */ void bf_clear_cache(bf_context_t *s); static inline void *bf_realloc(bf_context_t *s, void *ptr, size_t size) { return s->realloc_func(s->realloc_opaque, ptr, size); } /* 'size' must be != 0 */ static inline void *bf_malloc(bf_context_t *s, size_t size) { return bf_realloc(s, NULL, size); } static inline void bf_free(bf_context_t *s, void *ptr) { /* must test ptr otherwise equivalent to malloc(0) */ if (ptr) bf_realloc(s, ptr, 0); } void bf_init(bf_context_t *s, bf_t *r); static inline void bf_delete(bf_t *r) { bf_context_t *s = r->ctx; /* we accept to delete a zeroed bf_t structure */ if (s && r->tab) { bf_realloc(s, r->tab, 0); } } static inline void bf_neg(bf_t *r) { r->sign ^= 1; } static inline int bf_is_finite(const bf_t *a) { return (a->expn < BF_EXP_INF); } static inline int bf_is_nan(const bf_t *a) { return (a->expn == BF_EXP_NAN); } static inline int bf_is_zero(const bf_t *a) { return (a->expn == BF_EXP_ZERO); } static inline void bf_memcpy(bf_t *r, const bf_t *a) { *r = *a; } int bf_set_ui(bf_t *r, uint64_t a); int bf_set_si(bf_t *r, int64_t a); void bf_set_nan(bf_t *r); void bf_set_zero(bf_t *r, int is_neg); void bf_set_inf(bf_t *r, int is_neg); int bf_set(bf_t *r, const bf_t *a); void bf_move(bf_t *r, bf_t *a); int bf_get_float64(const bf_t *a, double *pres, bf_rnd_t rnd_mode); int bf_set_float64(bf_t *a, double d); int bf_cmpu(const bf_t *a, const bf_t *b); int bf_cmp_full(const bf_t *a, const bf_t *b); int bf_cmp(const bf_t *a, const bf_t *b); static inline int bf_cmp_eq(const bf_t *a, const bf_t *b) { return bf_cmp(a, b) == 0; } static inline int bf_cmp_le(const bf_t *a, const bf_t *b) { return bf_cmp(a, b) <= 0; } static inline int bf_cmp_lt(const bf_t *a, const bf_t *b) { return bf_cmp(a, b) < 0; } int bf_add(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags); int bf_sub(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags); int bf_add_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec, bf_flags_t flags); int bf_mul(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags); int bf_mul_ui(bf_t *r, const bf_t *a, uint64_t b1, limb_t prec, bf_flags_t flags); int bf_mul_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec, bf_flags_t flags); int bf_mul_2exp(bf_t *r, slimb_t e, limb_t prec, bf_flags_t flags); int bf_div(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags); #define BF_DIVREM_EUCLIDIAN BF_RNDF int bf_divrem(bf_t *q, bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags, int rnd_mode); int bf_rem(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags, int rnd_mode); int bf_remquo(slimb_t *pq, bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags, int rnd_mode); /* round to integer with infinite precision */ int bf_rint(bf_t *r, int rnd_mode); int bf_round(bf_t *r, limb_t prec, bf_flags_t flags); int bf_sqrtrem(bf_t *r, bf_t *rem1, const bf_t *a); int bf_sqrt(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); slimb_t bf_get_exp_min(const bf_t *a); int bf_logic_or(bf_t *r, const bf_t *a, const bf_t *b); int bf_logic_xor(bf_t *r, const bf_t *a, const bf_t *b); int bf_logic_and(bf_t *r, const bf_t *a, const bf_t *b); /* additional flags for bf_atof */ /* do not accept hex radix prefix (0x or 0X) if radix = 0 or radix = 16 */ #define BF_ATOF_NO_HEX (1 << 16) /* accept binary (0b or 0B) or octal (0o or 0O) radix prefix if radix = 0 */ #define BF_ATOF_BIN_OCT (1 << 17) /* Do not parse NaN or Inf */ #define BF_ATOF_NO_NAN_INF (1 << 18) /* return the exponent separately */ #define BF_ATOF_EXPONENT (1 << 19) int bf_atof(bf_t *a, const char *str, const char **pnext, int radix, limb_t prec, bf_flags_t flags); /* this version accepts prec = BF_PREC_INF and returns the radix exponent */ int bf_atof2(bf_t *r, slimb_t *pexponent, const char *str, const char **pnext, int radix, limb_t prec, bf_flags_t flags); int bf_mul_pow_radix(bf_t *r, const bf_t *T, limb_t radix, slimb_t expn, limb_t prec, bf_flags_t flags); /* Conversion of floating point number to string. Return a null terminated string or NULL if memory error. *plen contains its length if plen != NULL. The exponent letter is "e" for base 10, "p" for bases 2, 8, 16 with a binary exponent and "@" for the other bases. */ #define BF_FTOA_FORMAT_MASK (3 << 16) /* fixed format: prec significant digits rounded with (flags & BF_RND_MASK). Exponential notation is used if too many zeros are needed.*/ #define BF_FTOA_FORMAT_FIXED (0 << 16) /* fractional format: prec digits after the decimal point rounded with (flags & BF_RND_MASK) */ #define BF_FTOA_FORMAT_FRAC (1 << 16) /* free format: For binary radices with bf_ftoa() and for bfdec_ftoa(): use the minimum number of digits to represent 'a'. The precision and the rounding mode are ignored. For the non binary radices with bf_ftoa(): use as many digits as necessary so that bf_atof() return the same number when using precision 'prec', rounding to nearest and the subnormal configuration of 'flags'. The result is meaningful only if 'a' is already rounded to 'prec' bits. If the subnormal flag is set, the exponent in 'flags' must also be set to the desired exponent range. */ #define BF_FTOA_FORMAT_FREE (2 << 16) /* same as BF_FTOA_FORMAT_FREE but uses the minimum number of digits (takes more computation time). Identical to BF_FTOA_FORMAT_FREE for binary radices with bf_ftoa() and for bfdec_ftoa(). */ #define BF_FTOA_FORMAT_FREE_MIN (3 << 16) /* force exponential notation for fixed or free format */ #define BF_FTOA_FORCE_EXP (1 << 20) /* add 0x prefix for base 16, 0o prefix for base 8 or 0b prefix for base 2 if non zero value */ #define BF_FTOA_ADD_PREFIX (1 << 21) /* return "Infinity" instead of "Inf" and add a "+" for positive exponents */ #define BF_FTOA_JS_QUIRKS (1 << 22) char *bf_ftoa(size_t *plen, const bf_t *a, int radix, limb_t prec, bf_flags_t flags); /* modulo 2^n instead of saturation. NaN and infinity return 0 */ #define BF_GET_INT_MOD (1 << 0) int bf_get_int32(int *pres, const bf_t *a, int flags); int bf_get_int64(int64_t *pres, const bf_t *a, int flags); int bf_get_uint64(uint64_t *pres, const bf_t *a); /* the following functions are exported for testing only. */ void mp_print_str(const char *str, const limb_t *tab, limb_t n); void bf_print_str(const char *str, const bf_t *a); int bf_resize(bf_t *r, limb_t len); int bf_get_fft_size(int *pdpl, int *pnb_mods, limb_t len); int bf_normalize_and_round(bf_t *r, limb_t prec1, bf_flags_t flags); int bf_can_round(const bf_t *a, slimb_t prec, bf_rnd_t rnd_mode, slimb_t k); slimb_t bf_mul_log2_radix(slimb_t a1, unsigned int radix, int is_inv, int is_ceil1); int mp_mul(bf_context_t *s, limb_t *result, const limb_t *op1, limb_t op1_size, const limb_t *op2, limb_t op2_size); limb_t mp_add(limb_t *res, const limb_t *op1, const limb_t *op2, limb_t n, limb_t carry); limb_t mp_add_ui(limb_t *tab, limb_t b, size_t n); int mp_sqrtrem(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n); int mp_recip(bf_context_t *s, limb_t *tabr, const limb_t *taba, limb_t n); limb_t bf_isqrt(limb_t a); /* transcendental functions */ int bf_const_log2(bf_t *T, limb_t prec, bf_flags_t flags); int bf_const_pi(bf_t *T, limb_t prec, bf_flags_t flags); int bf_exp(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); int bf_log(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); #define BF_POW_JS_QUIRKS (1 << 16) /* (+/-1)^(+/-Inf) = NaN, 1^NaN = NaN */ int bf_pow(bf_t *r, const bf_t *x, const bf_t *y, limb_t prec, bf_flags_t flags); int bf_cos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); int bf_sin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); int bf_tan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); int bf_atan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); int bf_atan2(bf_t *r, const bf_t *y, const bf_t *x, limb_t prec, bf_flags_t flags); int bf_asin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); int bf_acos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags); /* decimal floating point */ static inline void bfdec_init(bf_context_t *s, bfdec_t *r) { bf_init(s, (bf_t *)r); } static inline void bfdec_delete(bfdec_t *r) { bf_delete((bf_t *)r); } static inline void bfdec_neg(bfdec_t *r) { r->sign ^= 1; } static inline int bfdec_is_finite(const bfdec_t *a) { return (a->expn < BF_EXP_INF); } static inline int bfdec_is_nan(const bfdec_t *a) { return (a->expn == BF_EXP_NAN); } static inline int bfdec_is_zero(const bfdec_t *a) { return (a->expn == BF_EXP_ZERO); } static inline void bfdec_memcpy(bfdec_t *r, const bfdec_t *a) { bf_memcpy((bf_t *)r, (const bf_t *)a); } int bfdec_set_ui(bfdec_t *r, uint64_t a); int bfdec_set_si(bfdec_t *r, int64_t a); static inline void bfdec_set_nan(bfdec_t *r) { bf_set_nan((bf_t *)r); } static inline void bfdec_set_zero(bfdec_t *r, int is_neg) { bf_set_zero((bf_t *)r, is_neg); } static inline void bfdec_set_inf(bfdec_t *r, int is_neg) { bf_set_inf((bf_t *)r, is_neg); } static inline int bfdec_set(bfdec_t *r, const bfdec_t *a) { return bf_set((bf_t *)r, (bf_t *)a); } static inline void bfdec_move(bfdec_t *r, bfdec_t *a) { bf_move((bf_t *)r, (bf_t *)a); } static inline int bfdec_cmpu(const bfdec_t *a, const bfdec_t *b) { return bf_cmpu((const bf_t *)a, (const bf_t *)b); } static inline int bfdec_cmp_full(const bfdec_t *a, const bfdec_t *b) { return bf_cmp_full((const bf_t *)a, (const bf_t *)b); } static inline int bfdec_cmp(const bfdec_t *a, const bfdec_t *b) { return bf_cmp((const bf_t *)a, (const bf_t *)b); } static inline int bfdec_cmp_eq(const bfdec_t *a, const bfdec_t *b) { return bfdec_cmp(a, b) == 0; } static inline int bfdec_cmp_le(const bfdec_t *a, const bfdec_t *b) { return bfdec_cmp(a, b) <= 0; } static inline int bfdec_cmp_lt(const bfdec_t *a, const bfdec_t *b) { return bfdec_cmp(a, b) < 0; } int bfdec_add(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags); int bfdec_sub(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags); int bfdec_add_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec, bf_flags_t flags); int bfdec_mul(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags); int bfdec_mul_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec, bf_flags_t flags); int bfdec_div(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags); int bfdec_divrem(bfdec_t *q, bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags, int rnd_mode); int bfdec_rem(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags, int rnd_mode); int bfdec_rint(bfdec_t *r, int rnd_mode); int bfdec_sqrt(bfdec_t *r, const bfdec_t *a, limb_t prec, bf_flags_t flags); int bfdec_round(bfdec_t *r, limb_t prec, bf_flags_t flags); int bfdec_get_int32(int *pres, const bfdec_t *a); int bfdec_pow_ui(bfdec_t *r, const bfdec_t *a, limb_t b); char *bfdec_ftoa(size_t *plen, const bfdec_t *a, limb_t prec, bf_flags_t flags); int bfdec_atof(bfdec_t *r, const char *str, const char **pnext, limb_t prec, bf_flags_t flags); /* the following functions are exported for testing only. */ extern const limb_t mp_pow_dec[LIMB_DIGITS + 1]; void bfdec_print_str(const char *str, const bfdec_t *a); static inline int bfdec_resize(bfdec_t *r, limb_t len) { return bf_resize((bf_t *)r, len); } int bfdec_normalize_and_round(bfdec_t *r, limb_t prec1, bf_flags_t flags); #endif /* LIBBF_H */ ================================================ FILE: libregexp-opcode.h ================================================ /* * Regular Expression Engine * * Copyright (c) 2017-2018 Fabrice Bellard * * 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. */ #ifdef DEF DEF(invalid, 1) /* never used */ DEF(char, 3) DEF(char32, 5) DEF(dot, 1) DEF(any, 1) /* same as dot but match any character including line terminator */ DEF(line_start, 1) DEF(line_end, 1) DEF(goto, 5) DEF(split_goto_first, 5) DEF(split_next_first, 5) DEF(match, 1) DEF(save_start, 2) /* save start position */ DEF(save_end, 2) /* save end position, must come after saved_start */ DEF(save_reset, 3) /* reset save positions */ DEF(loop, 5) /* decrement the top the stack and goto if != 0 */ DEF(push_i32, 5) /* push integer on the stack */ DEF(drop, 1) DEF(word_boundary, 1) DEF(not_word_boundary, 1) DEF(back_reference, 2) DEF(backward_back_reference, 2) /* must come after back_reference */ DEF(range, 3) /* variable length */ DEF(range32, 3) /* variable length */ DEF(lookahead, 5) DEF(negative_lookahead, 5) DEF(push_char_pos, 1) /* push the character position on the stack */ DEF(bne_char_pos, 5) /* pop one stack element and jump if equal to the character position */ DEF(prev, 1) /* go to the previous char */ DEF(simple_greedy_quant, 17) #endif /* DEF */ ================================================ FILE: libregexp.c ================================================ /* * Regular Expression Engine * * Copyright (c) 2017-2018 Fabrice Bellard * * 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. */ #include #include #include #include #include #include #include "cutils.h" #include "libregexp.h" /* TODO: - Add full unicode canonicalize rules for character ranges (not really useful but needed for exact "ignorecase" compatibility). - Add a lock step execution mode (=linear time execution guaranteed) when the regular expression is "simple" i.e. no backreference nor complicated lookahead. The opcodes are designed for this execution model. */ #if defined(TEST) #define DUMP_REOP #endif typedef enum { #define DEF(id, size) REOP_ ## id, #include "libregexp-opcode.h" #undef DEF REOP_COUNT, } REOPCodeEnum; #define CAPTURE_COUNT_MAX 255 #define STACK_SIZE_MAX 255 /* unicode code points */ #define CP_LS 0x2028 #define CP_PS 0x2029 #define TMP_BUF_SIZE 128 typedef struct { DynBuf byte_code; const uint8_t *buf_ptr; const uint8_t *buf_end; const uint8_t *buf_start; int re_flags; BOOL is_utf16; BOOL ignore_case; BOOL dotall; int capture_count; int total_capture_count; /* -1 = not computed yet */ int has_named_captures; /* -1 = don't know, 0 = no, 1 = yes */ void *mem_opaque; DynBuf group_names; union { char error_msg[TMP_BUF_SIZE]; char tmp_buf[TMP_BUF_SIZE]; } u; } REParseState; typedef struct { #ifdef DUMP_REOP const char *name; #endif uint8_t size; } REOpCode; static const REOpCode reopcode_info[REOP_COUNT] = { #ifdef DUMP_REOP #define DEF(id, size) { #id, size }, #else #define DEF(id, size) { size }, #endif #include "libregexp-opcode.h" #undef DEF }; #define RE_HEADER_FLAGS 0 #define RE_HEADER_CAPTURE_COUNT 1 #define RE_HEADER_STACK_SIZE 2 #define RE_HEADER_LEN 7 static inline int is_digit(int c) { return c >= '0' && c <= '9'; } /* insert 'len' bytes at position 'pos'. Return < 0 if error. */ static int dbuf_insert(DynBuf *s, int pos, int len) { if (dbuf_realloc(s, s->size + len)) return -1; memmove(s->buf + pos + len, s->buf + pos, s->size - pos); s->size += len; return 0; } /* canonicalize with the specific JS regexp rules */ static uint32_t lre_canonicalize(uint32_t c, BOOL is_utf16) { uint32_t res[LRE_CC_RES_LEN_MAX]; int len; if (is_utf16) { if (likely(c < 128)) { if (c >= 'A' && c <= 'Z') c = c - 'A' + 'a'; } else { lre_case_conv(res, c, 2); c = res[0]; } } else { if (likely(c < 128)) { if (c >= 'a' && c <= 'z') c = c - 'a' + 'A'; } else { /* legacy regexp: to upper case if single char >= 128 */ len = lre_case_conv(res, c, FALSE); if (len == 1 && res[0] >= 128) c = res[0]; } } return c; } static const uint16_t char_range_d[] = { 1, 0x0030, 0x0039 + 1, }; /* code point ranges for Zs,Zl or Zp property */ static const uint16_t char_range_s[] = { 10, 0x0009, 0x000D + 1, 0x0020, 0x0020 + 1, 0x00A0, 0x00A0 + 1, 0x1680, 0x1680 + 1, 0x2000, 0x200A + 1, /* 2028;LINE SEPARATOR;Zl;0;WS;;;;;N;;;;; */ /* 2029;PARAGRAPH SEPARATOR;Zp;0;B;;;;;N;;;;; */ 0x2028, 0x2029 + 1, 0x202F, 0x202F + 1, 0x205F, 0x205F + 1, 0x3000, 0x3000 + 1, /* FEFF;ZERO WIDTH NO-BREAK SPACE;Cf;0;BN;;;;;N;BYTE ORDER MARK;;;; */ 0xFEFF, 0xFEFF + 1, }; BOOL lre_is_space(int c) { int i, n, low, high; n = (countof(char_range_s) - 1) / 2; for(i = 0; i < n; i++) { low = char_range_s[2 * i + 1]; if (c < low) return FALSE; high = char_range_s[2 * i + 2]; if (c < high) return TRUE; } return FALSE; } uint32_t const lre_id_start_table_ascii[4] = { /* $ A-Z _ a-z */ 0x00000000, 0x00000010, 0x87FFFFFE, 0x07FFFFFE }; uint32_t const lre_id_continue_table_ascii[4] = { /* $ 0-9 A-Z _ a-z */ 0x00000000, 0x03FF0010, 0x87FFFFFE, 0x07FFFFFE }; static const uint16_t char_range_w[] = { 4, 0x0030, 0x0039 + 1, 0x0041, 0x005A + 1, 0x005F, 0x005F + 1, 0x0061, 0x007A + 1, }; #define CLASS_RANGE_BASE 0x40000000 typedef enum { CHAR_RANGE_d, CHAR_RANGE_D, CHAR_RANGE_s, CHAR_RANGE_S, CHAR_RANGE_w, CHAR_RANGE_W, } CharRangeEnum; static const uint16_t *char_range_table[] = { char_range_d, char_range_s, char_range_w, }; static int cr_init_char_range(REParseState *s, CharRange *cr, uint32_t c) { BOOL invert; const uint16_t *c_pt; int len, i; invert = c & 1; c_pt = char_range_table[c >> 1]; len = *c_pt++; cr_init(cr, s->mem_opaque, lre_realloc); for(i = 0; i < len * 2; i++) { if (cr_add_point(cr, c_pt[i])) goto fail; } if (invert) { if (cr_invert(cr)) goto fail; } return 0; fail: cr_free(cr); return -1; } static int cr_canonicalize(CharRange *cr) { CharRange a; uint32_t pt[2]; int i, ret; cr_init(&a, cr->mem_opaque, lre_realloc); pt[0] = 'a'; pt[1] = 'z' + 1; ret = cr_op(&a, cr->points, cr->len, pt, 2, CR_OP_INTER); if (ret) goto fail; /* convert to upper case */ /* XXX: the generic unicode case would be much more complicated and not really useful */ for(i = 0; i < a.len; i++) { a.points[i] += 'A' - 'a'; } /* Note: for simplicity we keep the lower case ranges */ ret = cr_union1(cr, a.points, a.len); fail: cr_free(&a); return ret; } #ifdef DUMP_REOP static __maybe_unused void lre_dump_bytecode(const uint8_t *buf, int buf_len) { int pos, len, opcode, bc_len, re_flags, i; uint32_t val; assert(buf_len >= RE_HEADER_LEN); re_flags= buf[0]; bc_len = get_u32(buf + 3); assert(bc_len + RE_HEADER_LEN <= buf_len); printf("flags: 0x%x capture_count=%d stack_size=%d\n", re_flags, buf[1], buf[2]); if (re_flags & LRE_FLAG_NAMED_GROUPS) { const char *p; p = (char *)buf + RE_HEADER_LEN + bc_len; printf("named groups: "); for(i = 1; i < buf[1]; i++) { if (i != 1) printf(","); printf("<%s>", p); p += strlen(p) + 1; } printf("\n"); assert(p == (char *)(buf + buf_len)); } printf("bytecode_len=%d\n", bc_len); buf += RE_HEADER_LEN; pos = 0; while (pos < bc_len) { printf("%5u: ", pos); opcode = buf[pos]; len = reopcode_info[opcode].size; if (opcode >= REOP_COUNT) { printf(" invalid opcode=0x%02x\n", opcode); break; } if ((pos + len) > bc_len) { printf(" buffer overflow (opcode=0x%02x)\n", opcode); break; } printf("%s", reopcode_info[opcode].name); switch(opcode) { case REOP_char: val = get_u16(buf + pos + 1); if (val >= ' ' && val <= 126) printf(" '%c'", val); else printf(" 0x%04x", val); break; case REOP_char32: val = get_u32(buf + pos + 1); if (val >= ' ' && val <= 126) printf(" '%c'", val); else printf(" 0x%08x", val); break; case REOP_goto: case REOP_split_goto_first: case REOP_split_next_first: case REOP_loop: case REOP_lookahead: case REOP_negative_lookahead: case REOP_bne_char_pos: val = get_u32(buf + pos + 1); val += (pos + 5); printf(" %u", val); break; case REOP_simple_greedy_quant: printf(" %u %u %u %u", get_u32(buf + pos + 1) + (pos + 17), get_u32(buf + pos + 1 + 4), get_u32(buf + pos + 1 + 8), get_u32(buf + pos + 1 + 12)); break; case REOP_save_start: case REOP_save_end: case REOP_back_reference: case REOP_backward_back_reference: printf(" %u", buf[pos + 1]); break; case REOP_save_reset: printf(" %u %u", buf[pos + 1], buf[pos + 2]); break; case REOP_push_i32: val = get_u32(buf + pos + 1); printf(" %d", val); break; case REOP_range: { int n, i; n = get_u16(buf + pos + 1); len += n * 4; for(i = 0; i < n * 2; i++) { val = get_u16(buf + pos + 3 + i * 2); printf(" 0x%04x", val); } } break; case REOP_range32: { int n, i; n = get_u16(buf + pos + 1); len += n * 8; for(i = 0; i < n * 2; i++) { val = get_u32(buf + pos + 3 + i * 4); printf(" 0x%08x", val); } } break; default: break; } printf("\n"); pos += len; } } #endif static void re_emit_op(REParseState *s, int op) { dbuf_putc(&s->byte_code, op); } /* return the offset of the u32 value */ static int re_emit_op_u32(REParseState *s, int op, uint32_t val) { int pos; dbuf_putc(&s->byte_code, op); pos = s->byte_code.size; dbuf_put_u32(&s->byte_code, val); return pos; } static int re_emit_goto(REParseState *s, int op, uint32_t val) { int pos; dbuf_putc(&s->byte_code, op); pos = s->byte_code.size; dbuf_put_u32(&s->byte_code, val - (pos + 4)); return pos; } static void re_emit_op_u8(REParseState *s, int op, uint32_t val) { dbuf_putc(&s->byte_code, op); dbuf_putc(&s->byte_code, val); } static void re_emit_op_u16(REParseState *s, int op, uint32_t val) { dbuf_putc(&s->byte_code, op); dbuf_put_u16(&s->byte_code, val); } static int __attribute__((format(printf, 2, 3))) re_parse_error(REParseState *s, const char *fmt, ...) { va_list ap; va_start(ap, fmt); vsnprintf(s->u.error_msg, sizeof(s->u.error_msg), fmt, ap); va_end(ap); return -1; } static int re_parse_out_of_memory(REParseState *s) { return re_parse_error(s, "out of memory"); } /* If allow_overflow is false, return -1 in case of overflow. Otherwise return INT32_MAX. */ static int parse_digits(const uint8_t **pp, BOOL allow_overflow) { const uint8_t *p; uint64_t v; int c; p = *pp; v = 0; for(;;) { c = *p; if (c < '0' || c > '9') break; v = v * 10 + c - '0'; if (v >= INT32_MAX) { if (allow_overflow) v = INT32_MAX; else return -1; } p++; } *pp = p; return v; } static int re_parse_expect(REParseState *s, const uint8_t **pp, int c) { const uint8_t *p; p = *pp; if (*p != c) return re_parse_error(s, "expecting '%c'", c); p++; *pp = p; return 0; } /* Parse an escape sequence, *pp points after the '\': allow_utf16 value: 0 : no UTF-16 escapes allowed 1 : UTF-16 escapes allowed 2 : UTF-16 escapes allowed and escapes of surrogate pairs are converted to a unicode character (unicode regexp case). Return the unicode char and update *pp if recognized, return -1 if malformed escape, return -2 otherwise. */ int lre_parse_escape(const uint8_t **pp, int allow_utf16) { const uint8_t *p; uint32_t c; p = *pp; c = *p++; switch(c) { case 'b': c = '\b'; break; case 'f': c = '\f'; break; case 'n': c = '\n'; break; case 'r': c = '\r'; break; case 't': c = '\t'; break; case 'v': c = '\v'; break; case 'x': case 'u': { int h, n, i; uint32_t c1; if (*p == '{' && allow_utf16) { p++; c = 0; for(;;) { h = from_hex(*p++); if (h < 0) return -1; c = (c << 4) | h; if (c > 0x10FFFF) return -1; if (*p == '}') break; } p++; } else { if (c == 'x') { n = 2; } else { n = 4; } c = 0; for(i = 0; i < n; i++) { h = from_hex(*p++); if (h < 0) { return -1; } c = (c << 4) | h; } if (c >= 0xd800 && c < 0xdc00 && allow_utf16 == 2 && p[0] == '\\' && p[1] == 'u') { /* convert an escaped surrogate pair into a unicode char */ c1 = 0; for(i = 0; i < 4; i++) { h = from_hex(p[2 + i]); if (h < 0) break; c1 = (c1 << 4) | h; } if (i == 4 && c1 >= 0xdc00 && c1 < 0xe000) { p += 6; c = (((c & 0x3ff) << 10) | (c1 & 0x3ff)) + 0x10000; } } } } break; case '0' ... '7': c -= '0'; if (allow_utf16 == 2) { /* only accept \0 not followed by digit */ if (c != 0 || is_digit(*p)) return -1; } else { /* parse a legacy octal sequence */ uint32_t v; v = *p - '0'; if (v > 7) break; c = (c << 3) | v; p++; if (c >= 32) break; v = *p - '0'; if (v > 7) break; c = (c << 3) | v; p++; } break; default: return -2; } *pp = p; return c; } #ifdef CONFIG_ALL_UNICODE /* XXX: we use the same chars for name and value */ static BOOL is_unicode_char(int c) { return ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c == '_')); } static int parse_unicode_property(REParseState *s, CharRange *cr, const uint8_t **pp, BOOL is_inv) { const uint8_t *p; char name[64], value[64]; char *q; BOOL script_ext; int ret; p = *pp; if (*p != '{') return re_parse_error(s, "expecting '{' after \\p"); p++; q = name; while (is_unicode_char(*p)) { if ((q - name) > sizeof(name) - 1) goto unknown_property_name; *q++ = *p++; } *q = '\0'; q = value; if (*p == '=') { p++; while (is_unicode_char(*p)) { if ((q - value) > sizeof(value) - 1) return re_parse_error(s, "unknown unicode property value"); *q++ = *p++; } } *q = '\0'; if (*p != '}') return re_parse_error(s, "expecting '}'"); p++; // printf("name=%s value=%s\n", name, value); if (!strcmp(name, "Script") || !strcmp(name, "sc")) { script_ext = FALSE; goto do_script; } else if (!strcmp(name, "Script_Extensions") || !strcmp(name, "scx")) { script_ext = TRUE; do_script: cr_init(cr, s->mem_opaque, lre_realloc); ret = unicode_script(cr, value, script_ext); if (ret) { cr_free(cr); if (ret == -2) return re_parse_error(s, "unknown unicode script"); else goto out_of_memory; } } else if (!strcmp(name, "General_Category") || !strcmp(name, "gc")) { cr_init(cr, s->mem_opaque, lre_realloc); ret = unicode_general_category(cr, value); if (ret) { cr_free(cr); if (ret == -2) return re_parse_error(s, "unknown unicode general category"); else goto out_of_memory; } } else if (value[0] == '\0') { cr_init(cr, s->mem_opaque, lre_realloc); ret = unicode_general_category(cr, name); if (ret == -1) { cr_free(cr); goto out_of_memory; } if (ret < 0) { ret = unicode_prop(cr, name); if (ret) { cr_free(cr); if (ret == -2) goto unknown_property_name; else goto out_of_memory; } } } else { unknown_property_name: return re_parse_error(s, "unknown unicode property name"); } if (is_inv) { if (cr_invert(cr)) { cr_free(cr); return -1; } } *pp = p; return 0; out_of_memory: return re_parse_out_of_memory(s); } #endif /* CONFIG_ALL_UNICODE */ /* return -1 if error otherwise the character or a class range (CLASS_RANGE_BASE). In case of class range, 'cr' is initialized. Otherwise, it is ignored. */ static int get_class_atom(REParseState *s, CharRange *cr, const uint8_t **pp, BOOL inclass) { const uint8_t *p; uint32_t c; int ret; p = *pp; c = *p; switch(c) { case '\\': p++; if (p >= s->buf_end) goto unexpected_end; c = *p++; switch(c) { case 'd': c = CHAR_RANGE_d; goto class_range; case 'D': c = CHAR_RANGE_D; goto class_range; case 's': c = CHAR_RANGE_s; goto class_range; case 'S': c = CHAR_RANGE_S; goto class_range; case 'w': c = CHAR_RANGE_w; goto class_range; case 'W': c = CHAR_RANGE_W; class_range: if (cr_init_char_range(s, cr, c)) return -1; c = CLASS_RANGE_BASE; break; case 'c': c = *p; if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (((c >= '0' && c <= '9') || c == '_') && inclass && !s->is_utf16)) { /* Annex B.1.4 */ c &= 0x1f; p++; } else if (s->is_utf16) { goto invalid_escape; } else { /* otherwise return '\' and 'c' */ p--; c = '\\'; } break; #ifdef CONFIG_ALL_UNICODE case 'p': case 'P': if (s->is_utf16) { if (parse_unicode_property(s, cr, &p, (c == 'P'))) return -1; c = CLASS_RANGE_BASE; break; } /* fall thru */ #endif default: p--; ret = lre_parse_escape(&p, s->is_utf16 * 2); if (ret >= 0) { c = ret; } else { if (ret == -2 && *p != '\0' && strchr("^$\\.*+?()[]{}|/", *p)) { /* always valid to escape these characters */ goto normal_char; } else if (s->is_utf16) { invalid_escape: return re_parse_error(s, "invalid escape sequence in regular expression"); } else { /* just ignore the '\' */ goto normal_char; } } break; } break; case '\0': if (p >= s->buf_end) { unexpected_end: return re_parse_error(s, "unexpected end"); } /* fall thru */ default: normal_char: /* normal char */ if (c >= 128) { c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p); if ((unsigned)c > 0xffff && !s->is_utf16) { /* XXX: should handle non BMP-1 code points */ return re_parse_error(s, "malformed unicode char"); } } else { p++; } break; } *pp = p; return c; } static int re_emit_range(REParseState *s, const CharRange *cr) { int len, i; uint32_t high; len = (unsigned)cr->len / 2; if (len >= 65535) return re_parse_error(s, "too many ranges"); if (len == 0) { /* not sure it can really happen. Emit a match that is always false */ re_emit_op_u32(s, REOP_char32, -1); } else { high = cr->points[cr->len - 1]; if (high == UINT32_MAX) high = cr->points[cr->len - 2]; if (high <= 0xffff) { /* can use 16 bit ranges with the conversion that 0xffff = infinity */ re_emit_op_u16(s, REOP_range, len); for(i = 0; i < cr->len; i += 2) { dbuf_put_u16(&s->byte_code, cr->points[i]); high = cr->points[i + 1] - 1; if (high == UINT32_MAX - 1) high = 0xffff; dbuf_put_u16(&s->byte_code, high); } } else { re_emit_op_u16(s, REOP_range32, len); for(i = 0; i < cr->len; i += 2) { dbuf_put_u32(&s->byte_code, cr->points[i]); dbuf_put_u32(&s->byte_code, cr->points[i + 1] - 1); } } } return 0; } static int re_parse_char_class(REParseState *s, const uint8_t **pp) { const uint8_t *p; uint32_t c1, c2; CharRange cr_s, *cr = &cr_s; CharRange cr1_s, *cr1 = &cr1_s; BOOL invert; cr_init(cr, s->mem_opaque, lre_realloc); p = *pp; p++; /* skip '[' */ invert = FALSE; if (*p == '^') { p++; invert = TRUE; } for(;;) { if (*p == ']') break; c1 = get_class_atom(s, cr1, &p, TRUE); if ((int)c1 < 0) goto fail; if (*p == '-' && p[1] != ']') { const uint8_t *p0 = p + 1; if (c1 >= CLASS_RANGE_BASE) { if (s->is_utf16) { cr_free(cr1); goto invalid_class_range; } /* Annex B: match '-' character */ goto class_atom; } c2 = get_class_atom(s, cr1, &p0, TRUE); if ((int)c2 < 0) goto fail; if (c2 >= CLASS_RANGE_BASE) { cr_free(cr1); if (s->is_utf16) { goto invalid_class_range; } /* Annex B: match '-' character */ goto class_atom; } p = p0; if (c2 < c1) { invalid_class_range: re_parse_error(s, "invalid class range"); goto fail; } if (cr_union_interval(cr, c1, c2)) goto memory_error; } else { class_atom: if (c1 >= CLASS_RANGE_BASE) { int ret; ret = cr_union1(cr, cr1->points, cr1->len); cr_free(cr1); if (ret) goto memory_error; } else { if (cr_union_interval(cr, c1, c1)) goto memory_error; } } } if (s->ignore_case) { if (cr_canonicalize(cr)) goto memory_error; } if (invert) { if (cr_invert(cr)) goto memory_error; } if (re_emit_range(s, cr)) goto fail; cr_free(cr); p++; /* skip ']' */ *pp = p; return 0; memory_error: re_parse_out_of_memory(s); fail: cr_free(cr); return -1; } /* Return: 1 if the opcodes in bc_buf[] always advance the character pointer. 0 if the character pointer may not be advanced. -1 if the code may depend on side effects of its previous execution (backreference) */ static int re_check_advance(const uint8_t *bc_buf, int bc_buf_len) { int pos, opcode, ret, len, i; uint32_t val, last; BOOL has_back_reference; uint8_t capture_bitmap[CAPTURE_COUNT_MAX]; ret = -2; /* not known yet */ pos = 0; has_back_reference = FALSE; memset(capture_bitmap, 0, sizeof(capture_bitmap)); while (pos < bc_buf_len) { opcode = bc_buf[pos]; len = reopcode_info[opcode].size; switch(opcode) { case REOP_range: val = get_u16(bc_buf + pos + 1); len += val * 4; goto simple_char; case REOP_range32: val = get_u16(bc_buf + pos + 1); len += val * 8; goto simple_char; case REOP_char: case REOP_char32: case REOP_dot: case REOP_any: simple_char: if (ret == -2) ret = 1; break; case REOP_line_start: case REOP_line_end: case REOP_push_i32: case REOP_push_char_pos: case REOP_drop: case REOP_word_boundary: case REOP_not_word_boundary: case REOP_prev: /* no effect */ break; case REOP_save_start: case REOP_save_end: val = bc_buf[pos + 1]; capture_bitmap[val] |= 1; break; case REOP_save_reset: { val = bc_buf[pos + 1]; last = bc_buf[pos + 2]; while (val < last) capture_bitmap[val++] |= 1; } break; case REOP_back_reference: case REOP_backward_back_reference: val = bc_buf[pos + 1]; capture_bitmap[val] |= 2; has_back_reference = TRUE; break; default: /* safe behvior: we cannot predict the outcome */ if (ret == -2) ret = 0; break; } pos += len; } if (has_back_reference) { /* check if there is back reference which references a capture made in the some code */ for(i = 0; i < CAPTURE_COUNT_MAX; i++) { if (capture_bitmap[i] == 3) return -1; } } if (ret == -2) ret = 0; return ret; } /* return -1 if a simple quantifier cannot be used. Otherwise return the number of characters in the atom. */ static int re_is_simple_quantifier(const uint8_t *bc_buf, int bc_buf_len) { int pos, opcode, len, count; uint32_t val; count = 0; pos = 0; while (pos < bc_buf_len) { opcode = bc_buf[pos]; len = reopcode_info[opcode].size; switch(opcode) { case REOP_range: val = get_u16(bc_buf + pos + 1); len += val * 4; goto simple_char; case REOP_range32: val = get_u16(bc_buf + pos + 1); len += val * 8; goto simple_char; case REOP_char: case REOP_char32: case REOP_dot: case REOP_any: simple_char: count++; break; case REOP_line_start: case REOP_line_end: case REOP_word_boundary: case REOP_not_word_boundary: break; default: return -1; } pos += len; } return count; } /* '*pp' is the first char after '<' */ static int re_parse_group_name(char *buf, int buf_size, const uint8_t **pp, BOOL is_utf16) { const uint8_t *p; uint32_t c; char *q; p = *pp; q = buf; for(;;) { c = *p; if (c == '\\') { p++; if (*p != 'u') return -1; c = lre_parse_escape(&p, is_utf16 * 2); } else if (c == '>') { break; } else if (c >= 128) { c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p); } else { p++; } if (c > 0x10FFFF) return -1; if (q == buf) { if (!lre_js_is_ident_first(c)) return -1; } else { if (!lre_js_is_ident_next(c)) return -1; } if ((q - buf + UTF8_CHAR_LEN_MAX + 1) > buf_size) return -1; if (c < 128) { *q++ = c; } else { q += unicode_to_utf8((uint8_t*)q, c); } } if (q == buf) return -1; *q = '\0'; p++; *pp = p; return 0; } /* if capture_name = NULL: return the number of captures + 1. Otherwise, return the capture index corresponding to capture_name or -1 if none */ static int re_parse_captures(REParseState *s, int *phas_named_captures, const char *capture_name) { const uint8_t *p; int capture_index; char name[TMP_BUF_SIZE]; capture_index = 1; *phas_named_captures = 0; for (p = s->buf_start; p < s->buf_end; p++) { switch (*p) { case '(': if (p[1] == '?') { if (p[2] == '<' && p[3] != '=' && p[3] != '!') { *phas_named_captures = 1; /* potential named capture */ if (capture_name) { p += 3; if (re_parse_group_name(name, sizeof(name), &p, s->is_utf16) == 0) { if (!strcmp(name, capture_name)) return capture_index; } } capture_index++; } } else { capture_index++; } break; case '\\': p++; break; case '[': for (p += 1 + (*p == ']'); p < s->buf_end && *p != ']'; p++) { if (*p == '\\') p++; } break; } } if (capture_name) return -1; else return capture_index; } static int re_count_captures(REParseState *s) { if (s->total_capture_count < 0) { s->total_capture_count = re_parse_captures(s, &s->has_named_captures, NULL); } return s->total_capture_count; } static BOOL re_has_named_captures(REParseState *s) { if (s->has_named_captures < 0) re_count_captures(s); return s->has_named_captures; } static int find_group_name(REParseState *s, const char *name) { const char *p, *buf_end; size_t len, name_len; int capture_index; name_len = strlen(name); p = (char *)s->group_names.buf; buf_end = (char *)s->group_names.buf + s->group_names.size; capture_index = 1; while (p < buf_end) { len = strlen(p); if (len == name_len && memcmp(name, p, name_len) == 0) return capture_index; p += len + 1; capture_index++; } return -1; } static int re_parse_disjunction(REParseState *s, BOOL is_backward_dir); static int re_parse_term(REParseState *s, BOOL is_backward_dir) { const uint8_t *p; int c, last_atom_start, quant_min, quant_max, last_capture_count; BOOL greedy, add_zero_advance_check, is_neg, is_backward_lookahead; CharRange cr_s, *cr = &cr_s; last_atom_start = -1; last_capture_count = 0; p = s->buf_ptr; c = *p; switch(c) { case '^': p++; re_emit_op(s, REOP_line_start); break; case '$': p++; re_emit_op(s, REOP_line_end); break; case '.': p++; last_atom_start = s->byte_code.size; last_capture_count = s->capture_count; if (is_backward_dir) re_emit_op(s, REOP_prev); re_emit_op(s, s->dotall ? REOP_any : REOP_dot); if (is_backward_dir) re_emit_op(s, REOP_prev); break; case '{': if (s->is_utf16) { return re_parse_error(s, "syntax error"); } else if (!is_digit(p[1])) { /* Annex B: we accept '{' not followed by digits as a normal atom */ goto parse_class_atom; } else { const uint8_t *p1 = p + 1; /* Annex B: error if it is like a repetition count */ parse_digits(&p1, TRUE); if (*p1 == ',') { p1++; if (is_digit(*p1)) { parse_digits(&p1, TRUE); } } if (*p1 != '}') { goto parse_class_atom; } } /* fall thru */ case '*': case '+': case '?': return re_parse_error(s, "nothing to repeat"); case '(': if (p[1] == '?') { if (p[2] == ':') { p += 3; last_atom_start = s->byte_code.size; last_capture_count = s->capture_count; s->buf_ptr = p; if (re_parse_disjunction(s, is_backward_dir)) return -1; p = s->buf_ptr; if (re_parse_expect(s, &p, ')')) return -1; } else if ((p[2] == '=' || p[2] == '!')) { is_neg = (p[2] == '!'); is_backward_lookahead = FALSE; p += 3; goto lookahead; } else if (p[2] == '<' && (p[3] == '=' || p[3] == '!')) { int pos; is_neg = (p[3] == '!'); is_backward_lookahead = TRUE; p += 4; /* lookahead */ lookahead: /* Annex B allows lookahead to be used as an atom for the quantifiers */ if (!s->is_utf16 && !is_backward_lookahead) { last_atom_start = s->byte_code.size; last_capture_count = s->capture_count; } pos = re_emit_op_u32(s, REOP_lookahead + is_neg, 0); s->buf_ptr = p; if (re_parse_disjunction(s, is_backward_lookahead)) return -1; p = s->buf_ptr; if (re_parse_expect(s, &p, ')')) return -1; re_emit_op(s, REOP_match); /* jump after the 'match' after the lookahead is successful */ if (dbuf_error(&s->byte_code)) return -1; put_u32(s->byte_code.buf + pos, s->byte_code.size - (pos + 4)); } else if (p[2] == '<') { p += 3; if (re_parse_group_name(s->u.tmp_buf, sizeof(s->u.tmp_buf), &p, s->is_utf16)) { return re_parse_error(s, "invalid group name"); } if (find_group_name(s, s->u.tmp_buf) > 0) { return re_parse_error(s, "duplicate group name"); } /* group name with a trailing zero */ dbuf_put(&s->group_names, (uint8_t *)s->u.tmp_buf, strlen(s->u.tmp_buf) + 1); s->has_named_captures = 1; goto parse_capture; } else { return re_parse_error(s, "invalid group"); } } else { int capture_index; p++; /* capture without group name */ dbuf_putc(&s->group_names, 0); parse_capture: if (s->capture_count >= CAPTURE_COUNT_MAX) return re_parse_error(s, "too many captures"); last_atom_start = s->byte_code.size; last_capture_count = s->capture_count; capture_index = s->capture_count++; re_emit_op_u8(s, REOP_save_start + is_backward_dir, capture_index); s->buf_ptr = p; if (re_parse_disjunction(s, is_backward_dir)) return -1; p = s->buf_ptr; re_emit_op_u8(s, REOP_save_start + 1 - is_backward_dir, capture_index); if (re_parse_expect(s, &p, ')')) return -1; } break; case '\\': switch(p[1]) { case 'b': case 'B': re_emit_op(s, REOP_word_boundary + (p[1] != 'b')); p += 2; break; case 'k': { const uint8_t *p1; int dummy_res; p1 = p; if (p1[2] != '<') { /* annex B: we tolerate invalid group names in non unicode mode if there is no named capture definition */ if (s->is_utf16 || re_has_named_captures(s)) return re_parse_error(s, "expecting group name"); else goto parse_class_atom; } p1 += 3; if (re_parse_group_name(s->u.tmp_buf, sizeof(s->u.tmp_buf), &p1, s->is_utf16)) { if (s->is_utf16 || re_has_named_captures(s)) return re_parse_error(s, "invalid group name"); else goto parse_class_atom; } c = find_group_name(s, s->u.tmp_buf); if (c < 0) { /* no capture name parsed before, try to look after (inefficient, but hopefully not common */ c = re_parse_captures(s, &dummy_res, s->u.tmp_buf); if (c < 0) { if (s->is_utf16 || re_has_named_captures(s)) return re_parse_error(s, "group name not defined"); else goto parse_class_atom; } } p = p1; } goto emit_back_reference; case '0': p += 2; c = 0; if (s->is_utf16) { if (is_digit(*p)) { return re_parse_error(s, "invalid decimal escape in regular expression"); } } else { /* Annex B.1.4: accept legacy octal */ if (*p >= '0' && *p <= '7') { c = *p++ - '0'; if (*p >= '0' && *p <= '7') { c = (c << 3) + *p++ - '0'; } } } goto normal_char; case '1' ... '9': { const uint8_t *q = ++p; c = parse_digits(&p, FALSE); if (c < 0 || (c >= s->capture_count && c >= re_count_captures(s))) { if (!s->is_utf16) { /* Annex B.1.4: accept legacy octal */ p = q; if (*p <= '7') { c = 0; if (*p <= '3') c = *p++ - '0'; if (*p >= '0' && *p <= '7') { c = (c << 3) + *p++ - '0'; if (*p >= '0' && *p <= '7') { c = (c << 3) + *p++ - '0'; } } } else { c = *p++; } goto normal_char; } return re_parse_error(s, "back reference out of range in reguar expression"); } emit_back_reference: last_atom_start = s->byte_code.size; last_capture_count = s->capture_count; re_emit_op_u8(s, REOP_back_reference + is_backward_dir, c); } break; default: goto parse_class_atom; } break; case '[': last_atom_start = s->byte_code.size; last_capture_count = s->capture_count; if (is_backward_dir) re_emit_op(s, REOP_prev); if (re_parse_char_class(s, &p)) return -1; if (is_backward_dir) re_emit_op(s, REOP_prev); break; case ']': case '}': if (s->is_utf16) return re_parse_error(s, "syntax error"); goto parse_class_atom; default: parse_class_atom: c = get_class_atom(s, cr, &p, FALSE); if ((int)c < 0) return -1; normal_char: last_atom_start = s->byte_code.size; last_capture_count = s->capture_count; if (is_backward_dir) re_emit_op(s, REOP_prev); if (c >= CLASS_RANGE_BASE) { int ret; /* Note: canonicalization is not needed */ ret = re_emit_range(s, cr); cr_free(cr); if (ret) return -1; } else { if (s->ignore_case) c = lre_canonicalize(c, s->is_utf16); if (c <= 0xffff) re_emit_op_u16(s, REOP_char, c); else re_emit_op_u32(s, REOP_char32, c); } if (is_backward_dir) re_emit_op(s, REOP_prev); break; } /* quantifier */ if (last_atom_start >= 0) { c = *p; switch(c) { case '*': p++; quant_min = 0; quant_max = INT32_MAX; goto quantifier; case '+': p++; quant_min = 1; quant_max = INT32_MAX; goto quantifier; case '?': p++; quant_min = 0; quant_max = 1; goto quantifier; case '{': { const uint8_t *p1 = p; /* As an extension (see ES6 annex B), we accept '{' not followed by digits as a normal atom */ if (!is_digit(p[1])) { if (s->is_utf16) goto invalid_quant_count; break; } p++; quant_min = parse_digits(&p, TRUE); quant_max = quant_min; if (*p == ',') { p++; if (is_digit(*p)) { quant_max = parse_digits(&p, TRUE); if (quant_max < quant_min) { invalid_quant_count: return re_parse_error(s, "invalid repetition count"); } } else { quant_max = INT32_MAX; /* infinity */ } } if (*p != '}' && !s->is_utf16) { /* Annex B: normal atom if invalid '{' syntax */ p = p1; break; } if (re_parse_expect(s, &p, '}')) return -1; } quantifier: greedy = TRUE; if (*p == '?') { p++; greedy = FALSE; } if (last_atom_start < 0) { return re_parse_error(s, "nothing to repeat"); } if (greedy) { int len, pos; if (quant_max > 0) { /* specific optimization for simple quantifiers */ if (dbuf_error(&s->byte_code)) goto out_of_memory; len = re_is_simple_quantifier(s->byte_code.buf + last_atom_start, s->byte_code.size - last_atom_start); if (len > 0) { re_emit_op(s, REOP_match); if (dbuf_insert(&s->byte_code, last_atom_start, 17)) goto out_of_memory; pos = last_atom_start; s->byte_code.buf[pos++] = REOP_simple_greedy_quant; put_u32(&s->byte_code.buf[pos], s->byte_code.size - last_atom_start - 17); pos += 4; put_u32(&s->byte_code.buf[pos], quant_min); pos += 4; put_u32(&s->byte_code.buf[pos], quant_max); pos += 4; put_u32(&s->byte_code.buf[pos], len); pos += 4; goto done; } } if (dbuf_error(&s->byte_code)) goto out_of_memory; add_zero_advance_check = (re_check_advance(s->byte_code.buf + last_atom_start, s->byte_code.size - last_atom_start) == 0); } else { add_zero_advance_check = FALSE; } { int len, pos; len = s->byte_code.size - last_atom_start; if (quant_min == 0) { /* need to reset the capture in case the atom is not executed */ if (last_capture_count != s->capture_count) { if (dbuf_insert(&s->byte_code, last_atom_start, 3)) goto out_of_memory; s->byte_code.buf[last_atom_start++] = REOP_save_reset; s->byte_code.buf[last_atom_start++] = last_capture_count; s->byte_code.buf[last_atom_start++] = s->capture_count - 1; } if (quant_max == 0) { s->byte_code.size = last_atom_start; } else if (quant_max == 1) { if (dbuf_insert(&s->byte_code, last_atom_start, 5)) goto out_of_memory; s->byte_code.buf[last_atom_start] = REOP_split_goto_first + greedy; put_u32(s->byte_code.buf + last_atom_start + 1, len); } else if (quant_max == INT32_MAX) { if (dbuf_insert(&s->byte_code, last_atom_start, 5 + add_zero_advance_check)) goto out_of_memory; s->byte_code.buf[last_atom_start] = REOP_split_goto_first + greedy; put_u32(s->byte_code.buf + last_atom_start + 1, len + 5 + add_zero_advance_check); if (add_zero_advance_check) { /* avoid infinite loop by stoping the recursion if no advance was made in the atom (only works if the atom has no side effect) */ s->byte_code.buf[last_atom_start + 1 + 4] = REOP_push_char_pos; re_emit_goto(s, REOP_bne_char_pos, last_atom_start); } else { re_emit_goto(s, REOP_goto, last_atom_start); } } else { if (dbuf_insert(&s->byte_code, last_atom_start, 10)) goto out_of_memory; pos = last_atom_start; s->byte_code.buf[pos++] = REOP_push_i32; put_u32(s->byte_code.buf + pos, quant_max); pos += 4; s->byte_code.buf[pos++] = REOP_split_goto_first + greedy; put_u32(s->byte_code.buf + pos, len + 5); re_emit_goto(s, REOP_loop, last_atom_start + 5); re_emit_op(s, REOP_drop); } } else if (quant_min == 1 && quant_max == INT32_MAX && !add_zero_advance_check) { re_emit_goto(s, REOP_split_next_first - greedy, last_atom_start); } else { if (quant_min == 1) { /* nothing to add */ } else { if (dbuf_insert(&s->byte_code, last_atom_start, 5)) goto out_of_memory; s->byte_code.buf[last_atom_start] = REOP_push_i32; put_u32(s->byte_code.buf + last_atom_start + 1, quant_min); last_atom_start += 5; re_emit_goto(s, REOP_loop, last_atom_start); re_emit_op(s, REOP_drop); } if (quant_max == INT32_MAX) { pos = s->byte_code.size; re_emit_op_u32(s, REOP_split_goto_first + greedy, len + 5 + add_zero_advance_check); if (add_zero_advance_check) re_emit_op(s, REOP_push_char_pos); /* copy the atom */ dbuf_put_self(&s->byte_code, last_atom_start, len); if (add_zero_advance_check) re_emit_goto(s, REOP_bne_char_pos, pos); else re_emit_goto(s, REOP_goto, pos); } else if (quant_max > quant_min) { re_emit_op_u32(s, REOP_push_i32, quant_max - quant_min); pos = s->byte_code.size; re_emit_op_u32(s, REOP_split_goto_first + greedy, len + 5); /* copy the atom */ dbuf_put_self(&s->byte_code, last_atom_start, len); re_emit_goto(s, REOP_loop, pos); re_emit_op(s, REOP_drop); } } last_atom_start = -1; } break; default: break; } } done: s->buf_ptr = p; return 0; out_of_memory: return re_parse_out_of_memory(s); } static int re_parse_alternative(REParseState *s, BOOL is_backward_dir) { const uint8_t *p; int ret; size_t start, term_start, end, term_size; start = s->byte_code.size; for(;;) { p = s->buf_ptr; if (p >= s->buf_end) break; if (*p == '|' || *p == ')') break; term_start = s->byte_code.size; ret = re_parse_term(s, is_backward_dir); if (ret) return ret; if (is_backward_dir) { /* reverse the order of the terms (XXX: inefficient, but speed is not really critical here) */ end = s->byte_code.size; term_size = end - term_start; if (dbuf_realloc(&s->byte_code, end + term_size)) return -1; memmove(s->byte_code.buf + start + term_size, s->byte_code.buf + start, end - start); memcpy(s->byte_code.buf + start, s->byte_code.buf + end, term_size); } } return 0; } static int re_parse_disjunction(REParseState *s, BOOL is_backward_dir) { int start, len, pos; start = s->byte_code.size; if (re_parse_alternative(s, is_backward_dir)) return -1; while (*s->buf_ptr == '|') { s->buf_ptr++; len = s->byte_code.size - start; /* insert a split before the first alternative */ if (dbuf_insert(&s->byte_code, start, 5)) { return re_parse_out_of_memory(s); } s->byte_code.buf[start] = REOP_split_next_first; put_u32(s->byte_code.buf + start + 1, len + 5); pos = re_emit_op_u32(s, REOP_goto, 0); if (re_parse_alternative(s, is_backward_dir)) return -1; /* patch the goto */ len = s->byte_code.size - (pos + 4); put_u32(s->byte_code.buf + pos, len); } return 0; } /* the control flow is recursive so the analysis can be linear */ static int compute_stack_size(const uint8_t *bc_buf, int bc_buf_len) { int stack_size, stack_size_max, pos, opcode, len; uint32_t val; stack_size = 0; stack_size_max = 0; bc_buf += RE_HEADER_LEN; bc_buf_len -= RE_HEADER_LEN; pos = 0; while (pos < bc_buf_len) { opcode = bc_buf[pos]; len = reopcode_info[opcode].size; assert(opcode < REOP_COUNT); assert((pos + len) <= bc_buf_len); switch(opcode) { case REOP_push_i32: case REOP_push_char_pos: stack_size++; if (stack_size > stack_size_max) { if (stack_size > STACK_SIZE_MAX) return -1; stack_size_max = stack_size; } break; case REOP_drop: case REOP_bne_char_pos: assert(stack_size > 0); stack_size--; break; case REOP_range: val = get_u16(bc_buf + pos + 1); len += val * 4; break; case REOP_range32: val = get_u16(bc_buf + pos + 1); len += val * 8; break; } pos += len; } return stack_size_max; } /* 'buf' must be a zero terminated UTF-8 string of length buf_len. Return NULL if error and allocate an error message in *perror_msg, otherwise the compiled bytecode and its length in plen. */ uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size, const char *buf, size_t buf_len, int re_flags, void *opaque) { REParseState s_s, *s = &s_s; int stack_size; BOOL is_sticky; memset(s, 0, sizeof(*s)); s->mem_opaque = opaque; s->buf_ptr = (const uint8_t *)buf; s->buf_end = s->buf_ptr + buf_len; s->buf_start = s->buf_ptr; s->re_flags = re_flags; s->is_utf16 = ((re_flags & LRE_FLAG_UTF16) != 0); is_sticky = ((re_flags & LRE_FLAG_STICKY) != 0); s->ignore_case = ((re_flags & LRE_FLAG_IGNORECASE) != 0); s->dotall = ((re_flags & LRE_FLAG_DOTALL) != 0); s->capture_count = 1; s->total_capture_count = -1; s->has_named_captures = -1; dbuf_init2(&s->byte_code, opaque, lre_realloc); dbuf_init2(&s->group_names, opaque, lre_realloc); dbuf_putc(&s->byte_code, re_flags); /* first element is the flags */ dbuf_putc(&s->byte_code, 0); /* second element is the number of captures */ dbuf_putc(&s->byte_code, 0); /* stack size */ dbuf_put_u32(&s->byte_code, 0); /* bytecode length */ if (!is_sticky) { /* iterate thru all positions (about the same as .*?( ... ) ) . We do it without an explicit loop so that lock step thread execution will be possible in an optimized implementation */ re_emit_op_u32(s, REOP_split_goto_first, 1 + 5); re_emit_op(s, REOP_any); re_emit_op_u32(s, REOP_goto, -(5 + 1 + 5)); } re_emit_op_u8(s, REOP_save_start, 0); if (re_parse_disjunction(s, FALSE)) { error: dbuf_free(&s->byte_code); dbuf_free(&s->group_names); pstrcpy(error_msg, error_msg_size, s->u.error_msg); *plen = 0; return NULL; } re_emit_op_u8(s, REOP_save_end, 0); re_emit_op(s, REOP_match); if (*s->buf_ptr != '\0') { re_parse_error(s, "extraneous characters at the end"); goto error; } if (dbuf_error(&s->byte_code)) { re_parse_out_of_memory(s); goto error; } stack_size = compute_stack_size(s->byte_code.buf, s->byte_code.size); if (stack_size < 0) { re_parse_error(s, "too many imbricated quantifiers"); goto error; } s->byte_code.buf[RE_HEADER_CAPTURE_COUNT] = s->capture_count; s->byte_code.buf[RE_HEADER_STACK_SIZE] = stack_size; put_u32(s->byte_code.buf + 3, s->byte_code.size - RE_HEADER_LEN); /* add the named groups if needed */ if (s->group_names.size > (s->capture_count - 1)) { dbuf_put(&s->byte_code, s->group_names.buf, s->group_names.size); s->byte_code.buf[RE_HEADER_FLAGS] |= LRE_FLAG_NAMED_GROUPS; } dbuf_free(&s->group_names); #ifdef DUMP_REOP lre_dump_bytecode(s->byte_code.buf, s->byte_code.size); #endif error_msg[0] = '\0'; *plen = s->byte_code.size; return s->byte_code.buf; } static BOOL is_line_terminator(uint32_t c) { return (c == '\n' || c == '\r' || c == CP_LS || c == CP_PS); } static BOOL is_word_char(uint32_t c) { return ((c >= '0' && c <= '9') || (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c == '_')); } #define GET_CHAR(c, cptr, cbuf_end) \ do { \ if (cbuf_type == 0) { \ c = *cptr++; \ } else { \ uint32_t __c1; \ c = *(uint16_t *)cptr; \ cptr += 2; \ if (c >= 0xd800 && c < 0xdc00 && \ cbuf_type == 2 && cptr < cbuf_end) { \ __c1 = *(uint16_t *)cptr; \ if (__c1 >= 0xdc00 && __c1 < 0xe000) { \ c = (((c & 0x3ff) << 10) | (__c1 & 0x3ff)) + 0x10000; \ cptr += 2; \ } \ } \ } \ } while (0) #define PEEK_CHAR(c, cptr, cbuf_end) \ do { \ if (cbuf_type == 0) { \ c = cptr[0]; \ } else { \ uint32_t __c1; \ c = ((uint16_t *)cptr)[0]; \ if (c >= 0xd800 && c < 0xdc00 && \ cbuf_type == 2 && (cptr + 2) < cbuf_end) { \ __c1 = ((uint16_t *)cptr)[1]; \ if (__c1 >= 0xdc00 && __c1 < 0xe000) { \ c = (((c & 0x3ff) << 10) | (__c1 & 0x3ff)) + 0x10000; \ } \ } \ } \ } while (0) #define PEEK_PREV_CHAR(c, cptr, cbuf_start) \ do { \ if (cbuf_type == 0) { \ c = cptr[-1]; \ } else { \ uint32_t __c1; \ c = ((uint16_t *)cptr)[-1]; \ if (c >= 0xdc00 && c < 0xe000 && \ cbuf_type == 2 && (cptr - 4) >= cbuf_start) { \ __c1 = ((uint16_t *)cptr)[-2]; \ if (__c1 >= 0xd800 && __c1 < 0xdc00 ) { \ c = (((__c1 & 0x3ff) << 10) | (c & 0x3ff)) + 0x10000; \ } \ } \ } \ } while (0) #define GET_PREV_CHAR(c, cptr, cbuf_start) \ do { \ if (cbuf_type == 0) { \ cptr--; \ c = cptr[0]; \ } else { \ uint32_t __c1; \ cptr -= 2; \ c = ((uint16_t *)cptr)[0]; \ if (c >= 0xdc00 && c < 0xe000 && \ cbuf_type == 2 && cptr > cbuf_start) { \ __c1 = ((uint16_t *)cptr)[-1]; \ if (__c1 >= 0xd800 && __c1 < 0xdc00 ) { \ cptr -= 2; \ c = (((__c1 & 0x3ff) << 10) | (c & 0x3ff)) + 0x10000; \ } \ } \ } \ } while (0) #define PREV_CHAR(cptr, cbuf_start) \ do { \ if (cbuf_type == 0) { \ cptr--; \ } else { \ cptr -= 2; \ if (cbuf_type == 2) { \ c = ((uint16_t *)cptr)[0]; \ if (c >= 0xdc00 && c < 0xe000 && cptr > cbuf_start) { \ c = ((uint16_t *)cptr)[-1]; \ if (c >= 0xd800 && c < 0xdc00) \ cptr -= 2; \ } \ } \ } \ } while (0) typedef uintptr_t StackInt; typedef enum { RE_EXEC_STATE_SPLIT, RE_EXEC_STATE_LOOKAHEAD, RE_EXEC_STATE_NEGATIVE_LOOKAHEAD, RE_EXEC_STATE_GREEDY_QUANT, } REExecStateEnum; typedef struct REExecState { REExecStateEnum type : 8; uint8_t stack_len; size_t count; /* only used for RE_EXEC_STATE_GREEDY_QUANT */ const uint8_t *cptr; const uint8_t *pc; void *buf[0]; } REExecState; typedef struct { const uint8_t *cbuf; const uint8_t *cbuf_end; /* 0 = 8 bit chars, 1 = 16 bit chars, 2 = 16 bit chars, UTF-16 */ int cbuf_type; int capture_count; int stack_size_max; BOOL multi_line; BOOL ignore_case; BOOL is_utf16; void *opaque; /* used for stack overflow check */ size_t state_size; uint8_t *state_stack; size_t state_stack_size; size_t state_stack_len; } REExecContext; static int push_state(REExecContext *s, uint8_t **capture, StackInt *stack, size_t stack_len, const uint8_t *pc, const uint8_t *cptr, REExecStateEnum type, size_t count) { REExecState *rs; uint8_t *new_stack; size_t new_size, i, n; StackInt *stack_buf; if (unlikely((s->state_stack_len + 1) > s->state_stack_size)) { /* reallocate the stack */ new_size = s->state_stack_size * 3 / 2; if (new_size < 8) new_size = 8; new_stack = lre_realloc(s->opaque, s->state_stack, new_size * s->state_size); if (!new_stack) return -1; s->state_stack_size = new_size; s->state_stack = new_stack; } rs = (REExecState *)(s->state_stack + s->state_stack_len * s->state_size); s->state_stack_len++; rs->type = type; rs->count = count; rs->stack_len = stack_len; rs->cptr = cptr; rs->pc = pc; n = 2 * s->capture_count; for(i = 0; i < n; i++) rs->buf[i] = capture[i]; stack_buf = (StackInt *)(rs->buf + n); for(i = 0; i < stack_len; i++) stack_buf[i] = stack[i]; return 0; } /* return 1 if match, 0 if not match or -1 if error. */ static intptr_t lre_exec_backtrack(REExecContext *s, uint8_t **capture, StackInt *stack, int stack_len, const uint8_t *pc, const uint8_t *cptr, BOOL no_recurse) { int opcode, ret; int cbuf_type; uint32_t val, c; const uint8_t *cbuf_end; cbuf_type = s->cbuf_type; cbuf_end = s->cbuf_end; for(;;) { // printf("top=%p: pc=%d\n", th_list.top, (int)(pc - (bc_buf + RE_HEADER_LEN))); opcode = *pc++; switch(opcode) { case REOP_match: { REExecState *rs; if (no_recurse) return (intptr_t)cptr; ret = 1; goto recurse; no_match: if (no_recurse) return 0; ret = 0; recurse: for(;;) { if (s->state_stack_len == 0) return ret; rs = (REExecState *)(s->state_stack + (s->state_stack_len - 1) * s->state_size); if (rs->type == RE_EXEC_STATE_SPLIT) { if (!ret) { pop_state: memcpy(capture, rs->buf, sizeof(capture[0]) * 2 * s->capture_count); pop_state1: pc = rs->pc; cptr = rs->cptr; stack_len = rs->stack_len; memcpy(stack, rs->buf + 2 * s->capture_count, stack_len * sizeof(stack[0])); s->state_stack_len--; break; } } else if (rs->type == RE_EXEC_STATE_GREEDY_QUANT) { if (!ret) { uint32_t char_count, i; memcpy(capture, rs->buf, sizeof(capture[0]) * 2 * s->capture_count); stack_len = rs->stack_len; memcpy(stack, rs->buf + 2 * s->capture_count, stack_len * sizeof(stack[0])); pc = rs->pc; cptr = rs->cptr; /* go backward */ char_count = get_u32(pc + 12); for(i = 0; i < char_count; i++) { PREV_CHAR(cptr, s->cbuf); } pc = (pc + 16) + (int)get_u32(pc); rs->cptr = cptr; rs->count--; if (rs->count == 0) { s->state_stack_len--; } break; } } else { ret = ((rs->type == RE_EXEC_STATE_LOOKAHEAD && ret) || (rs->type == RE_EXEC_STATE_NEGATIVE_LOOKAHEAD && !ret)); if (ret) { /* keep the capture in case of positive lookahead */ if (rs->type == RE_EXEC_STATE_LOOKAHEAD) goto pop_state1; else goto pop_state; } } s->state_stack_len--; } } break; case REOP_char32: val = get_u32(pc); pc += 4; goto test_char; case REOP_char: val = get_u16(pc); pc += 2; test_char: if (cptr >= cbuf_end) goto no_match; GET_CHAR(c, cptr, cbuf_end); if (s->ignore_case) { c = lre_canonicalize(c, s->is_utf16); } if (val != c) goto no_match; break; case REOP_split_goto_first: case REOP_split_next_first: { const uint8_t *pc1; val = get_u32(pc); pc += 4; if (opcode == REOP_split_next_first) { pc1 = pc + (int)val; } else { pc1 = pc; pc = pc + (int)val; } ret = push_state(s, capture, stack, stack_len, pc1, cptr, RE_EXEC_STATE_SPLIT, 0); if (ret < 0) return -1; break; } case REOP_lookahead: case REOP_negative_lookahead: val = get_u32(pc); pc += 4; ret = push_state(s, capture, stack, stack_len, pc + (int)val, cptr, RE_EXEC_STATE_LOOKAHEAD + opcode - REOP_lookahead, 0); if (ret < 0) return -1; break; case REOP_goto: val = get_u32(pc); pc += 4 + (int)val; break; case REOP_line_start: if (cptr == s->cbuf) break; if (!s->multi_line) goto no_match; PEEK_PREV_CHAR(c, cptr, s->cbuf); if (!is_line_terminator(c)) goto no_match; break; case REOP_line_end: if (cptr == cbuf_end) break; if (!s->multi_line) goto no_match; PEEK_CHAR(c, cptr, cbuf_end); if (!is_line_terminator(c)) goto no_match; break; case REOP_dot: if (cptr == cbuf_end) goto no_match; GET_CHAR(c, cptr, cbuf_end); if (is_line_terminator(c)) goto no_match; break; case REOP_any: if (cptr == cbuf_end) goto no_match; GET_CHAR(c, cptr, cbuf_end); break; case REOP_save_start: case REOP_save_end: val = *pc++; assert(val < s->capture_count); capture[2 * val + opcode - REOP_save_start] = (uint8_t *)cptr; break; case REOP_save_reset: { uint32_t val2; val = pc[0]; val2 = pc[1]; pc += 2; assert(val2 < s->capture_count); while (val <= val2) { capture[2 * val] = NULL; capture[2 * val + 1] = NULL; val++; } } break; case REOP_push_i32: val = get_u32(pc); pc += 4; stack[stack_len++] = val; break; case REOP_drop: stack_len--; break; case REOP_loop: val = get_u32(pc); pc += 4; if (--stack[stack_len - 1] != 0) { pc += (int)val; } break; case REOP_push_char_pos: stack[stack_len++] = (uintptr_t)cptr; break; case REOP_bne_char_pos: val = get_u32(pc); pc += 4; if (stack[--stack_len] != (uintptr_t)cptr) pc += (int)val; break; case REOP_word_boundary: case REOP_not_word_boundary: { BOOL v1, v2; /* char before */ if (cptr == s->cbuf) { v1 = FALSE; } else { PEEK_PREV_CHAR(c, cptr, s->cbuf); v1 = is_word_char(c); } /* current char */ if (cptr >= cbuf_end) { v2 = FALSE; } else { PEEK_CHAR(c, cptr, cbuf_end); v2 = is_word_char(c); } if (v1 ^ v2 ^ (REOP_not_word_boundary - opcode)) goto no_match; } break; case REOP_back_reference: case REOP_backward_back_reference: { const uint8_t *cptr1, *cptr1_end, *cptr1_start; uint32_t c1, c2; val = *pc++; if (val >= s->capture_count) goto no_match; cptr1_start = capture[2 * val]; cptr1_end = capture[2 * val + 1]; if (!cptr1_start || !cptr1_end) break; if (opcode == REOP_back_reference) { cptr1 = cptr1_start; while (cptr1 < cptr1_end) { if (cptr >= cbuf_end) goto no_match; GET_CHAR(c1, cptr1, cptr1_end); GET_CHAR(c2, cptr, cbuf_end); if (s->ignore_case) { c1 = lre_canonicalize(c1, s->is_utf16); c2 = lre_canonicalize(c2, s->is_utf16); } if (c1 != c2) goto no_match; } } else { cptr1 = cptr1_end; while (cptr1 > cptr1_start) { if (cptr == s->cbuf) goto no_match; GET_PREV_CHAR(c1, cptr1, cptr1_start); GET_PREV_CHAR(c2, cptr, s->cbuf); if (s->ignore_case) { c1 = lre_canonicalize(c1, s->is_utf16); c2 = lre_canonicalize(c2, s->is_utf16); } if (c1 != c2) goto no_match; } } } break; case REOP_range: { int n; uint32_t low, high, idx_min, idx_max, idx; n = get_u16(pc); /* n must be >= 1 */ pc += 2; if (cptr >= cbuf_end) goto no_match; GET_CHAR(c, cptr, cbuf_end); if (s->ignore_case) { c = lre_canonicalize(c, s->is_utf16); } idx_min = 0; low = get_u16(pc + 0 * 4); if (c < low) goto no_match; idx_max = n - 1; high = get_u16(pc + idx_max * 4 + 2); /* 0xffff in for last value means +infinity */ if (unlikely(c >= 0xffff) && high == 0xffff) goto range_match; if (c > high) goto no_match; while (idx_min <= idx_max) { idx = (idx_min + idx_max) / 2; low = get_u16(pc + idx * 4); high = get_u16(pc + idx * 4 + 2); if (c < low) idx_max = idx - 1; else if (c > high) idx_min = idx + 1; else goto range_match; } goto no_match; range_match: pc += 4 * n; } break; case REOP_range32: { int n; uint32_t low, high, idx_min, idx_max, idx; n = get_u16(pc); /* n must be >= 1 */ pc += 2; if (cptr >= cbuf_end) goto no_match; GET_CHAR(c, cptr, cbuf_end); if (s->ignore_case) { c = lre_canonicalize(c, s->is_utf16); } idx_min = 0; low = get_u32(pc + 0 * 8); if (c < low) goto no_match; idx_max = n - 1; high = get_u32(pc + idx_max * 8 + 4); if (c > high) goto no_match; while (idx_min <= idx_max) { idx = (idx_min + idx_max) / 2; low = get_u32(pc + idx * 8); high = get_u32(pc + idx * 8 + 4); if (c < low) idx_max = idx - 1; else if (c > high) idx_min = idx + 1; else goto range32_match; } goto no_match; range32_match: pc += 8 * n; } break; case REOP_prev: /* go to the previous char */ if (cptr == s->cbuf) goto no_match; PREV_CHAR(cptr, s->cbuf); break; case REOP_simple_greedy_quant: { uint32_t next_pos, quant_min, quant_max; size_t q; intptr_t res; const uint8_t *pc1; next_pos = get_u32(pc); quant_min = get_u32(pc + 4); quant_max = get_u32(pc + 8); pc += 16; pc1 = pc; pc += (int)next_pos; q = 0; for(;;) { res = lre_exec_backtrack(s, capture, stack, stack_len, pc1, cptr, TRUE); if (res == -1) return res; if (!res) break; cptr = (uint8_t *)res; q++; if (q >= quant_max && quant_max != INT32_MAX) break; } if (q < quant_min) goto no_match; if (q > quant_min) { /* will examine all matches down to quant_min */ ret = push_state(s, capture, stack, stack_len, pc1 - 16, cptr, RE_EXEC_STATE_GREEDY_QUANT, q - quant_min); if (ret < 0) return -1; } } break; default: abort(); } } } /* Return 1 if match, 0 if not match or -1 if error. cindex is the starting position of the match and must be such as 0 <= cindex <= clen. */ int lre_exec(uint8_t **capture, const uint8_t *bc_buf, const uint8_t *cbuf, int cindex, int clen, int cbuf_type, void *opaque) { REExecContext s_s, *s = &s_s; int re_flags, i, alloca_size, ret; StackInt *stack_buf; re_flags = bc_buf[RE_HEADER_FLAGS]; s->multi_line = (re_flags & LRE_FLAG_MULTILINE) != 0; s->ignore_case = (re_flags & LRE_FLAG_IGNORECASE) != 0; s->is_utf16 = (re_flags & LRE_FLAG_UTF16) != 0; s->capture_count = bc_buf[RE_HEADER_CAPTURE_COUNT]; s->stack_size_max = bc_buf[RE_HEADER_STACK_SIZE]; s->cbuf = cbuf; s->cbuf_end = cbuf + (clen << cbuf_type); s->cbuf_type = cbuf_type; if (s->cbuf_type == 1 && s->is_utf16) s->cbuf_type = 2; s->opaque = opaque; s->state_size = sizeof(REExecState) + s->capture_count * sizeof(capture[0]) * 2 + s->stack_size_max * sizeof(stack_buf[0]); s->state_stack = NULL; s->state_stack_len = 0; s->state_stack_size = 0; for(i = 0; i < s->capture_count * 2; i++) capture[i] = NULL; alloca_size = s->stack_size_max * sizeof(stack_buf[0]); stack_buf = alloca(alloca_size); ret = lre_exec_backtrack(s, capture, stack_buf, 0, bc_buf + RE_HEADER_LEN, cbuf + (cindex << cbuf_type), FALSE); lre_realloc(s->opaque, s->state_stack, 0); return ret; } int lre_get_capture_count(const uint8_t *bc_buf) { return bc_buf[RE_HEADER_CAPTURE_COUNT]; } int lre_get_flags(const uint8_t *bc_buf) { return bc_buf[RE_HEADER_FLAGS]; } #ifdef TEST BOOL lre_check_stack_overflow(void *opaque, size_t alloca_size) { return FALSE; } void *lre_realloc(void *opaque, void *ptr, size_t size) { return realloc(ptr, size); } int main(int argc, char **argv) { int len, ret, i; uint8_t *bc; char error_msg[64]; uint8_t *capture[CAPTURE_COUNT_MAX * 2]; const char *input; int input_len, capture_count; if (argc < 3) { printf("usage: %s regexp input\n", argv[0]); exit(1); } bc = lre_compile(&len, error_msg, sizeof(error_msg), argv[1], strlen(argv[1]), 0, NULL); if (!bc) { fprintf(stderr, "error: %s\n", error_msg); exit(1); } input = argv[2]; input_len = strlen(input); ret = lre_exec(capture, bc, (uint8_t *)input, 0, input_len, 0, NULL); printf("ret=%d\n", ret); if (ret == 1) { capture_count = lre_get_capture_count(bc); for(i = 0; i < 2 * capture_count; i++) { uint8_t *ptr; ptr = capture[i]; printf("%d: ", i); if (!ptr) printf(""); else printf("%u", (int)(ptr - (uint8_t *)input)); printf("\n"); } } return 0; } #endif ================================================ FILE: libregexp.h ================================================ /* * Regular Expression Engine * * Copyright (c) 2017-2018 Fabrice Bellard * * 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. */ #ifndef LIBREGEXP_H #define LIBREGEXP_H #include #include "libunicode.h" #define LRE_BOOL int /* for documentation purposes */ #define LRE_FLAG_GLOBAL (1 << 0) #define LRE_FLAG_IGNORECASE (1 << 1) #define LRE_FLAG_MULTILINE (1 << 2) #define LRE_FLAG_DOTALL (1 << 3) #define LRE_FLAG_UTF16 (1 << 4) #define LRE_FLAG_STICKY (1 << 5) #define LRE_FLAG_NAMED_GROUPS (1 << 7) /* named groups are present in the regexp */ uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size, const char *buf, size_t buf_len, int re_flags, void *opaque); int lre_get_capture_count(const uint8_t *bc_buf); int lre_get_flags(const uint8_t *bc_buf); int lre_exec(uint8_t **capture, const uint8_t *bc_buf, const uint8_t *cbuf, int cindex, int clen, int cbuf_type, void *opaque); int lre_parse_escape(const uint8_t **pp, int allow_utf16); LRE_BOOL lre_is_space(int c); /* must be provided by the user */ LRE_BOOL lre_check_stack_overflow(void *opaque, size_t alloca_size); void *lre_realloc(void *opaque, void *ptr, size_t size); /* JS identifier test */ extern uint32_t const lre_id_start_table_ascii[4]; extern uint32_t const lre_id_continue_table_ascii[4]; static inline int lre_js_is_ident_first(int c) { if ((uint32_t)c < 128) { return (lre_id_start_table_ascii[c >> 5] >> (c & 31)) & 1; } else { #ifdef CONFIG_ALL_UNICODE return lre_is_id_start(c); #else return !lre_is_space(c); #endif } } static inline int lre_js_is_ident_next(int c) { if ((uint32_t)c < 128) { return (lre_id_continue_table_ascii[c >> 5] >> (c & 31)) & 1; } else { /* ZWNJ and ZWJ are accepted in identifiers */ #ifdef CONFIG_ALL_UNICODE return lre_is_id_continue(c) || c == 0x200C || c == 0x200D; #else return !lre_is_space(c) || c == 0x200C || c == 0x200D; #endif } } #undef LRE_BOOL #endif /* LIBREGEXP_H */ ================================================ FILE: libunicode-table.h ================================================ /* Compressed unicode tables */ /* Automatically generated file - do not edit */ #include static const uint32_t case_conv_table1[361] = { 0x00209a30, 0x00309a00, 0x005a8173, 0x00601730, 0x006c0730, 0x006f81b3, 0x00701700, 0x007c0700, 0x007f8100, 0x00803040, 0x009801c3, 0x00988190, 0x00990640, 0x009c9040, 0x00a481b4, 0x00a52e40, 0x00bc0130, 0x00bc8640, 0x00bf8170, 0x00c00100, 0x00c08130, 0x00c10440, 0x00c30130, 0x00c38240, 0x00c48230, 0x00c58240, 0x00c70130, 0x00c78130, 0x00c80130, 0x00c88240, 0x00c98130, 0x00ca0130, 0x00ca8100, 0x00cb0130, 0x00cb8130, 0x00cc0240, 0x00cd0100, 0x00ce0130, 0x00ce8130, 0x00cf0100, 0x00cf8130, 0x00d00640, 0x00d30130, 0x00d38240, 0x00d48130, 0x00d60240, 0x00d70130, 0x00d78240, 0x00d88230, 0x00d98440, 0x00db8130, 0x00dc0240, 0x00de0240, 0x00df8100, 0x00e20350, 0x00e38350, 0x00e50350, 0x00e69040, 0x00ee8100, 0x00ef1240, 0x00f801b4, 0x00f88350, 0x00fa0240, 0x00fb0130, 0x00fb8130, 0x00fc2840, 0x01100130, 0x01111240, 0x011d0131, 0x011d8240, 0x011e8130, 0x011f0131, 0x011f8201, 0x01208240, 0x01218130, 0x01220130, 0x01228130, 0x01230a40, 0x01280101, 0x01288101, 0x01290101, 0x01298100, 0x012a0100, 0x012b0200, 0x012c8100, 0x012d8100, 0x012e0101, 0x01300100, 0x01308101, 0x01318100, 0x01328101, 0x01330101, 0x01340100, 0x01348100, 0x01350101, 0x01358101, 0x01360101, 0x01378100, 0x01388101, 0x01390100, 0x013a8100, 0x013e8101, 0x01400100, 0x01410101, 0x01418100, 0x01438101, 0x01440100, 0x01448100, 0x01450200, 0x01460100, 0x01490100, 0x014e8101, 0x014f0101, 0x01a28173, 0x01b80440, 0x01bb0240, 0x01bd8300, 0x01bf8130, 0x01c30130, 0x01c40330, 0x01c60130, 0x01c70230, 0x01c801d0, 0x01c89130, 0x01d18930, 0x01d60100, 0x01d68300, 0x01d801d3, 0x01d89100, 0x01e10173, 0x01e18900, 0x01e60100, 0x01e68200, 0x01e78130, 0x01e80173, 0x01e88173, 0x01ea8173, 0x01eb0173, 0x01eb8100, 0x01ec1840, 0x01f80173, 0x01f88173, 0x01f90100, 0x01f98100, 0x01fa01a0, 0x01fa8173, 0x01fb8240, 0x01fc8130, 0x01fd0240, 0x01fe8330, 0x02001030, 0x02082030, 0x02182000, 0x02281000, 0x02302240, 0x02453640, 0x02600130, 0x02608e40, 0x02678100, 0x02686040, 0x0298a630, 0x02b0a600, 0x02c381b5, 0x08502631, 0x08638131, 0x08668131, 0x08682b00, 0x087e8300, 0x09d05011, 0x09f80610, 0x09fc0620, 0x0e400174, 0x0e408174, 0x0e410174, 0x0e418174, 0x0e420174, 0x0e428174, 0x0e430174, 0x0e438180, 0x0e440180, 0x0e482b30, 0x0e5e8330, 0x0ebc8101, 0x0ebe8101, 0x0ec70101, 0x0f007e40, 0x0f3f1840, 0x0f4b01b5, 0x0f4b81b6, 0x0f4c01b6, 0x0f4c81b6, 0x0f4d01b7, 0x0f4d8180, 0x0f4f0130, 0x0f506040, 0x0f800800, 0x0f840830, 0x0f880600, 0x0f8c0630, 0x0f900800, 0x0f940830, 0x0f980800, 0x0f9c0830, 0x0fa00600, 0x0fa40630, 0x0fa801b0, 0x0fa88100, 0x0fa901d3, 0x0fa98100, 0x0faa01d3, 0x0faa8100, 0x0fab01d3, 0x0fab8100, 0x0fac8130, 0x0fad8130, 0x0fae8130, 0x0faf8130, 0x0fb00800, 0x0fb40830, 0x0fb80200, 0x0fb90400, 0x0fbb0200, 0x0fbc0201, 0x0fbd0201, 0x0fbe0201, 0x0fc008b7, 0x0fc40867, 0x0fc808b8, 0x0fcc0868, 0x0fd008b8, 0x0fd40868, 0x0fd80200, 0x0fd901b9, 0x0fd981b1, 0x0fda01b9, 0x0fdb01b1, 0x0fdb81d7, 0x0fdc0230, 0x0fdd0230, 0x0fde0161, 0x0fdf0173, 0x0fe101b9, 0x0fe181b2, 0x0fe201ba, 0x0fe301b2, 0x0fe381d8, 0x0fe40430, 0x0fe60162, 0x0fe80200, 0x0fe901d0, 0x0fe981d0, 0x0feb01b0, 0x0feb81d0, 0x0fec0230, 0x0fed0230, 0x0ff00201, 0x0ff101d3, 0x0ff181d3, 0x0ff201ba, 0x0ff28101, 0x0ff301b0, 0x0ff381d3, 0x0ff40230, 0x0ff50230, 0x0ff60131, 0x0ff901ba, 0x0ff981b2, 0x0ffa01bb, 0x0ffb01b2, 0x0ffb81d9, 0x0ffc0230, 0x0ffd0230, 0x0ffe0162, 0x109301a0, 0x109501a0, 0x109581a0, 0x10990131, 0x10a70101, 0x10b01031, 0x10b81001, 0x10c18240, 0x125b1a31, 0x12681a01, 0x16002f31, 0x16182f01, 0x16300240, 0x16310130, 0x16318130, 0x16320130, 0x16328100, 0x16330100, 0x16338640, 0x16368130, 0x16370130, 0x16378130, 0x16380130, 0x16390240, 0x163a8240, 0x163f0230, 0x16406440, 0x16758440, 0x16790240, 0x16802600, 0x16938100, 0x16968100, 0x53202e40, 0x53401c40, 0x53910e40, 0x53993e40, 0x53bc8440, 0x53be8130, 0x53bf0a40, 0x53c58240, 0x53c68130, 0x53c80440, 0x53ca0101, 0x53cb1440, 0x53d50130, 0x53d58130, 0x53d60130, 0x53d68130, 0x53d70130, 0x53d80130, 0x53d88130, 0x53d90130, 0x53d98131, 0x53da0c40, 0x53e10240, 0x53e20131, 0x53e28130, 0x53e30130, 0x53e38440, 0x53fa8240, 0x55a98101, 0x55b85020, 0x7d8001b2, 0x7d8081b2, 0x7d8101b2, 0x7d8181da, 0x7d8201da, 0x7d8281b3, 0x7d8301b3, 0x7d8981bb, 0x7d8a01bb, 0x7d8a81bb, 0x7d8b01bc, 0x7d8b81bb, 0x7f909a31, 0x7fa09a01, 0x82002831, 0x82142801, 0x82582431, 0x826c2401, 0x86403331, 0x86603301, 0x8c502031, 0x8c602001, 0xb7202031, 0xb7302001, 0xf4802231, 0xf4912201, }; static const uint8_t case_conv_table2[361] = { 0x01, 0x00, 0x9c, 0x06, 0x07, 0x4d, 0x03, 0x04, 0x10, 0x00, 0x8f, 0x0b, 0x00, 0x00, 0x11, 0x00, 0x08, 0x00, 0x53, 0x4a, 0x51, 0x00, 0x52, 0x00, 0x53, 0x00, 0x3a, 0x54, 0x55, 0x00, 0x57, 0x59, 0x3f, 0x5d, 0x5c, 0x00, 0x46, 0x61, 0x63, 0x42, 0x64, 0x00, 0x66, 0x00, 0x68, 0x00, 0x6a, 0x00, 0x6c, 0x00, 0x6e, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x1a, 0x00, 0x93, 0x00, 0x00, 0x20, 0x35, 0x00, 0x27, 0x00, 0x21, 0x00, 0x24, 0x22, 0x2a, 0x00, 0x13, 0x6b, 0x6d, 0x00, 0x26, 0x24, 0x27, 0x14, 0x16, 0x18, 0x1b, 0x1c, 0x3e, 0x1e, 0x3f, 0x1f, 0x39, 0x3d, 0x22, 0x21, 0x41, 0x1e, 0x40, 0x25, 0x25, 0x26, 0x28, 0x20, 0x2a, 0x49, 0x2c, 0x43, 0x2e, 0x4b, 0x30, 0x4c, 0x32, 0x44, 0x42, 0x99, 0x00, 0x00, 0x95, 0x8f, 0x7d, 0x7e, 0x83, 0x84, 0x12, 0x80, 0x82, 0x76, 0x77, 0x12, 0x7b, 0xa3, 0x7c, 0x78, 0x79, 0x8a, 0x92, 0x98, 0xa6, 0xa0, 0x85, 0x00, 0x9a, 0xa1, 0x93, 0x75, 0x33, 0x95, 0x00, 0x8e, 0x00, 0x74, 0x99, 0x98, 0x97, 0x96, 0x00, 0x00, 0x9e, 0x00, 0x9c, 0x00, 0xa1, 0xa0, 0x15, 0x2e, 0x2f, 0x30, 0xb4, 0xb5, 0x4e, 0xaa, 0xa9, 0x12, 0x14, 0x1e, 0x21, 0x22, 0x22, 0x2a, 0x34, 0x35, 0xa6, 0xa7, 0x36, 0x1f, 0x4a, 0x00, 0x00, 0x97, 0x01, 0x5a, 0xda, 0x1d, 0x36, 0x05, 0x00, 0xc4, 0xc3, 0xc6, 0xc5, 0xc8, 0xc7, 0xca, 0xc9, 0xcc, 0xcb, 0xc4, 0xd5, 0x45, 0xd6, 0x42, 0xd7, 0x46, 0xd8, 0xce, 0xd0, 0xd2, 0xd4, 0xda, 0xd9, 0xee, 0xf6, 0xfe, 0x0e, 0x07, 0x0f, 0x80, 0x9f, 0x00, 0x21, 0x80, 0xa3, 0xed, 0x00, 0xc0, 0x40, 0xc6, 0x60, 0xe7, 0xdb, 0xe6, 0x99, 0xc0, 0x00, 0x00, 0x06, 0x60, 0xdc, 0x29, 0xfd, 0x15, 0x12, 0x06, 0x16, 0xf8, 0xdd, 0x06, 0x15, 0x12, 0x84, 0x08, 0xc6, 0x16, 0xff, 0xdf, 0x03, 0xc0, 0x40, 0x00, 0x46, 0x60, 0xde, 0xe0, 0x6d, 0x37, 0x38, 0x39, 0x15, 0x14, 0x17, 0x16, 0x00, 0x1a, 0x19, 0x1c, 0x1b, 0x00, 0x5f, 0xb7, 0x65, 0x44, 0x47, 0x00, 0x4f, 0x62, 0x4e, 0x50, 0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 0xa3, 0xa4, 0xa5, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb6, 0x00, 0x00, 0x5a, 0x00, 0x48, 0x00, 0x5b, 0x56, 0x58, 0x60, 0x5e, 0x70, 0x69, 0x6f, 0x4d, 0x00, 0x00, 0x3b, 0x67, 0xb8, 0x00, 0x00, 0x45, 0xa8, 0x8a, 0x8b, 0x8c, 0xab, 0xac, 0x58, 0x58, 0xaf, 0x94, 0xb0, 0x6f, 0xb2, 0x5c, 0x5b, 0x5e, 0x5d, 0x60, 0x5f, 0x62, 0x61, 0x64, 0x63, 0x66, 0x65, 0x68, 0x67, }; static const uint16_t case_conv_ext[58] = { 0x0399, 0x0308, 0x0301, 0x03a5, 0x0313, 0x0300, 0x0342, 0x0391, 0x0397, 0x03a9, 0x0046, 0x0049, 0x004c, 0x0053, 0x0069, 0x0307, 0x02bc, 0x004e, 0x004a, 0x030c, 0x0535, 0x0552, 0x0048, 0x0331, 0x0054, 0x0057, 0x030a, 0x0059, 0x0041, 0x02be, 0x1f08, 0x1f80, 0x1f28, 0x1f90, 0x1f68, 0x1fa0, 0x1fba, 0x0386, 0x1fb3, 0x1fca, 0x0389, 0x1fc3, 0x03a1, 0x1ffa, 0x038f, 0x1ff3, 0x0544, 0x0546, 0x053b, 0x054e, 0x053d, 0x03b8, 0x0462, 0xa64a, 0x1e60, 0x03c9, 0x006b, 0x00e5, }; static const uint8_t unicode_prop_Cased1_table[172] = { 0x40, 0xa9, 0x80, 0x8e, 0x80, 0xfc, 0x80, 0xd3, 0x80, 0x8c, 0x80, 0x8d, 0x81, 0x8d, 0x02, 0x80, 0xe1, 0x80, 0x91, 0x85, 0x9a, 0x01, 0x00, 0x01, 0x11, 0x00, 0x01, 0x04, 0x08, 0x01, 0x08, 0x30, 0x08, 0x01, 0x15, 0x20, 0x00, 0x39, 0x99, 0x31, 0x9d, 0x84, 0x40, 0x94, 0x80, 0xd6, 0x82, 0xa6, 0x80, 0x41, 0x62, 0x80, 0xa6, 0x80, 0x57, 0x76, 0xf8, 0x02, 0x80, 0x8f, 0x80, 0xb0, 0x40, 0xdb, 0x08, 0x80, 0x41, 0xd0, 0x80, 0x8c, 0x80, 0x8f, 0x8c, 0xe4, 0x03, 0x01, 0x89, 0x00, 0x14, 0x28, 0x10, 0x11, 0x02, 0x01, 0x18, 0x0b, 0x24, 0x4b, 0x26, 0x01, 0x01, 0x86, 0xe5, 0x80, 0x60, 0x79, 0xb6, 0x81, 0x40, 0x91, 0x81, 0xbd, 0x88, 0x94, 0x05, 0x80, 0x98, 0x80, 0xc7, 0x82, 0x43, 0x34, 0xa2, 0x06, 0x80, 0x8c, 0x61, 0x28, 0x96, 0xd4, 0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b, 0x80, 0x8b, 0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f, 0x06, 0x80, 0x9b, 0x03, 0x04, 0x00, 0x16, 0x80, 0x41, 0x53, 0x81, 0x98, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x07, 0x59, 0x63, 0x99, 0x85, 0x99, 0x85, 0x99, }; static const uint8_t unicode_prop_Cased1_index[18] = { 0xb9, 0x02, 0xe0, 0xa0, 0x1e, 0x40, 0x9e, 0xa6, 0x40, 0xba, 0xd4, 0x01, 0x89, 0xd7, 0x01, 0x8a, 0xf1, 0x01, }; static const uint8_t unicode_prop_Case_Ignorable_table[692] = { 0xa6, 0x05, 0x80, 0x8a, 0x80, 0xa2, 0x00, 0x80, 0xc6, 0x03, 0x00, 0x03, 0x01, 0x81, 0x41, 0xf6, 0x40, 0xbf, 0x19, 0x18, 0x88, 0x08, 0x80, 0x40, 0xfa, 0x86, 0x40, 0xce, 0x04, 0x80, 0xb0, 0xac, 0x00, 0x01, 0x01, 0x00, 0xab, 0x80, 0x8a, 0x85, 0x89, 0x8a, 0x00, 0xa2, 0x80, 0x89, 0x94, 0x8f, 0x80, 0xe4, 0x38, 0x89, 0x03, 0xa0, 0x00, 0x80, 0x9d, 0x9a, 0xda, 0x8a, 0xb9, 0x8a, 0x18, 0x08, 0x97, 0x97, 0xaa, 0x82, 0xf6, 0xaf, 0xb6, 0x00, 0x03, 0x3b, 0x02, 0x86, 0x89, 0x81, 0x8c, 0x80, 0x8e, 0x80, 0xb9, 0x03, 0x1f, 0x80, 0x93, 0x81, 0x99, 0x01, 0x81, 0xb8, 0x03, 0x0b, 0x09, 0x12, 0x80, 0x9d, 0x0a, 0x80, 0x8a, 0x81, 0xb8, 0x03, 0x20, 0x0b, 0x80, 0x93, 0x81, 0x95, 0x28, 0x80, 0xb9, 0x01, 0x00, 0x1f, 0x06, 0x81, 0x8a, 0x81, 0x9d, 0x80, 0xbc, 0x80, 0x8b, 0x80, 0xb1, 0x02, 0x80, 0xb8, 0x14, 0x10, 0x1e, 0x81, 0x8a, 0x81, 0x9c, 0x80, 0xb9, 0x01, 0x05, 0x04, 0x81, 0x93, 0x81, 0x9b, 0x81, 0xb8, 0x0b, 0x1f, 0x80, 0x93, 0x81, 0x9c, 0x80, 0xc7, 0x06, 0x10, 0x80, 0xd9, 0x01, 0x86, 0x8a, 0x88, 0xe1, 0x01, 0x88, 0x88, 0x00, 0x85, 0xc9, 0x81, 0x9a, 0x00, 0x00, 0x80, 0xb6, 0x8d, 0x04, 0x01, 0x84, 0x8a, 0x80, 0xa3, 0x88, 0x80, 0xe5, 0x18, 0x28, 0x09, 0x81, 0x98, 0x0b, 0x82, 0x8f, 0x83, 0x8c, 0x01, 0x0d, 0x80, 0x8e, 0x80, 0xdd, 0x80, 0x42, 0x5f, 0x82, 0x43, 0xb1, 0x82, 0x9c, 0x82, 0x9c, 0x81, 0x9d, 0x81, 0xbf, 0x08, 0x37, 0x01, 0x8a, 0x10, 0x20, 0xac, 0x83, 0xb3, 0x80, 0xc0, 0x81, 0xa1, 0x80, 0xf5, 0x13, 0x81, 0x88, 0x05, 0x82, 0x40, 0xda, 0x09, 0x80, 0xb9, 0x00, 0x30, 0x00, 0x01, 0x3d, 0x89, 0x08, 0xa6, 0x07, 0x90, 0xbe, 0x83, 0xaf, 0x00, 0x20, 0x04, 0x80, 0xa7, 0x88, 0x8b, 0x81, 0x9f, 0x19, 0x08, 0x82, 0xb7, 0x00, 0x0a, 0x00, 0x82, 0xb9, 0x39, 0x81, 0xbf, 0x85, 0xd1, 0x10, 0x8c, 0x06, 0x18, 0x28, 0x11, 0xb1, 0xbe, 0x8c, 0x80, 0xa1, 0xde, 0x04, 0x41, 0xbc, 0x00, 0x82, 0x8a, 0x82, 0x8c, 0x82, 0x8c, 0x82, 0x8c, 0x81, 0x8b, 0x27, 0x81, 0x89, 0x01, 0x01, 0x84, 0xb0, 0x20, 0x89, 0x00, 0x8c, 0x80, 0x8f, 0x8c, 0xb2, 0xa0, 0x4b, 0x8a, 0x81, 0xf0, 0x82, 0xfc, 0x80, 0x8e, 0x80, 0xdf, 0x9f, 0xae, 0x80, 0x41, 0xd4, 0x80, 0xa3, 0x1a, 0x24, 0x80, 0xdc, 0x85, 0xdc, 0x82, 0x60, 0x6f, 0x15, 0x80, 0x44, 0xe1, 0x85, 0x41, 0x0d, 0x80, 0xe1, 0x18, 0x89, 0x00, 0x9b, 0x83, 0xcf, 0x81, 0x8d, 0xa1, 0xcd, 0x80, 0x96, 0x82, 0xec, 0x0f, 0x02, 0x03, 0x80, 0x98, 0x0c, 0x80, 0x40, 0x96, 0x81, 0x99, 0x91, 0x8c, 0x80, 0xa5, 0x87, 0x98, 0x8a, 0xad, 0x82, 0xaf, 0x01, 0x19, 0x81, 0x90, 0x80, 0x94, 0x81, 0xc1, 0x29, 0x09, 0x81, 0x8b, 0x07, 0x80, 0xa2, 0x80, 0x8a, 0x80, 0xb2, 0x00, 0x11, 0x0c, 0x08, 0x80, 0x9a, 0x80, 0x8d, 0x0c, 0x08, 0x80, 0xe3, 0x84, 0x88, 0x82, 0xf8, 0x01, 0x03, 0x80, 0x60, 0x4f, 0x2f, 0x80, 0x40, 0x92, 0x8f, 0x42, 0x3d, 0x8f, 0x10, 0x8b, 0x8f, 0xa1, 0x01, 0x80, 0x40, 0xa8, 0x06, 0x05, 0x80, 0x8a, 0x80, 0xa2, 0x00, 0x80, 0xae, 0x80, 0xac, 0x81, 0xc2, 0x80, 0x94, 0x82, 0x42, 0x00, 0x80, 0x40, 0xe1, 0x80, 0x40, 0x94, 0x84, 0x46, 0x85, 0x10, 0x0c, 0x83, 0xa7, 0x13, 0x80, 0x40, 0xa4, 0x81, 0x42, 0x3c, 0x83, 0x41, 0x82, 0x81, 0x40, 0x98, 0x8a, 0x40, 0xaf, 0x80, 0xb5, 0x8e, 0xb7, 0x82, 0xb0, 0x19, 0x09, 0x80, 0x8e, 0x80, 0xb1, 0x82, 0xa3, 0x20, 0x87, 0xbd, 0x80, 0x8b, 0x81, 0xb3, 0x88, 0x89, 0x19, 0x80, 0xde, 0x11, 0x00, 0x0d, 0x80, 0x40, 0x9f, 0x02, 0x87, 0x94, 0x81, 0xb8, 0x0a, 0x80, 0xa4, 0x32, 0x84, 0x40, 0xc2, 0x39, 0x10, 0x80, 0x96, 0x80, 0xd3, 0x28, 0x03, 0x08, 0x81, 0x40, 0xed, 0x1d, 0x08, 0x81, 0x9a, 0x81, 0xd4, 0x39, 0x00, 0x81, 0xe9, 0x00, 0x01, 0x28, 0x80, 0xe4, 0x11, 0x18, 0x84, 0x41, 0x02, 0x88, 0x01, 0x40, 0xff, 0x08, 0x03, 0x80, 0x40, 0x8f, 0x19, 0x0b, 0x80, 0x9f, 0x89, 0xa7, 0x29, 0x1f, 0x80, 0x88, 0x29, 0x82, 0xad, 0x8c, 0x01, 0x41, 0x95, 0x30, 0x28, 0x80, 0xd1, 0x95, 0x0e, 0x01, 0x01, 0xf9, 0x2a, 0x00, 0x08, 0x30, 0x80, 0xc7, 0x0a, 0x00, 0x80, 0x41, 0x5a, 0x81, 0x55, 0x3a, 0x88, 0x60, 0x36, 0xb6, 0x84, 0xba, 0x86, 0x88, 0x83, 0x44, 0x0a, 0x80, 0xbe, 0x90, 0xbf, 0x08, 0x81, 0x60, 0x4c, 0xb7, 0x08, 0x83, 0x54, 0xc2, 0x82, 0x88, 0x8f, 0x0e, 0x9d, 0x83, 0x40, 0x93, 0x82, 0x47, 0xba, 0xb6, 0x83, 0xb1, 0x38, 0x8d, 0x80, 0x95, 0x20, 0x8e, 0x45, 0x4f, 0x30, 0x90, 0x0e, 0x01, 0x04, 0x41, 0x04, 0x8d, 0x41, 0xad, 0x83, 0x45, 0xdf, 0x86, 0xec, 0x87, 0x4a, 0xae, 0x84, 0x6c, 0x0c, 0x00, 0x80, 0x9d, 0xdf, 0xff, 0x40, 0xef, }; static const uint8_t unicode_prop_Case_Ignorable_index[66] = { 0xbe, 0x05, 0x00, 0xfe, 0x07, 0x00, 0x52, 0x0a, 0x20, 0x05, 0x0c, 0x20, 0x3b, 0x0e, 0x40, 0x61, 0x10, 0x40, 0x0f, 0x18, 0x20, 0x43, 0x1b, 0x60, 0x79, 0x1d, 0x00, 0xf1, 0x20, 0x00, 0x0d, 0xa6, 0x40, 0x2e, 0xa9, 0x20, 0xde, 0xaa, 0x00, 0x0f, 0xff, 0x20, 0xe7, 0x0a, 0x41, 0x82, 0x11, 0x21, 0xc4, 0x14, 0x61, 0x44, 0x19, 0x01, 0x48, 0x1d, 0x21, 0xa4, 0xbc, 0x01, 0x3e, 0xe1, 0x01, 0xf0, 0x01, 0x0e, }; static const uint8_t unicode_prop_ID_Start_table[1045] = { 0xc0, 0x99, 0x85, 0x99, 0xae, 0x80, 0x89, 0x03, 0x04, 0x96, 0x80, 0x9e, 0x80, 0x41, 0xc9, 0x83, 0x8b, 0x8d, 0x26, 0x00, 0x80, 0x40, 0x80, 0x20, 0x09, 0x18, 0x05, 0x00, 0x10, 0x00, 0x93, 0x80, 0xd2, 0x80, 0x40, 0x8a, 0x87, 0x40, 0xa5, 0x80, 0xa5, 0x08, 0x85, 0xa8, 0xc6, 0x9a, 0x1b, 0xac, 0xaa, 0xa2, 0x08, 0xe2, 0x00, 0x8e, 0x0e, 0x81, 0x89, 0x11, 0x80, 0x8f, 0x00, 0x9d, 0x9c, 0xd8, 0x8a, 0x80, 0x97, 0xa0, 0x88, 0x0b, 0x04, 0x95, 0x18, 0x88, 0x02, 0x80, 0x96, 0x98, 0x86, 0x8a, 0xb4, 0x94, 0x80, 0x91, 0xbb, 0xb5, 0x10, 0x91, 0x06, 0x89, 0x8e, 0x8f, 0x1f, 0x09, 0x81, 0x95, 0x06, 0x00, 0x13, 0x10, 0x8f, 0x80, 0x8c, 0x08, 0x82, 0x8d, 0x81, 0x89, 0x07, 0x2b, 0x09, 0x95, 0x06, 0x01, 0x01, 0x01, 0x9e, 0x18, 0x80, 0x92, 0x82, 0x8f, 0x88, 0x02, 0x80, 0x95, 0x06, 0x01, 0x04, 0x10, 0x91, 0x80, 0x8e, 0x81, 0x96, 0x80, 0x8a, 0x39, 0x09, 0x95, 0x06, 0x01, 0x04, 0x10, 0x9d, 0x08, 0x82, 0x8e, 0x80, 0x90, 0x00, 0x2a, 0x10, 0x1a, 0x08, 0x00, 0x0a, 0x0a, 0x12, 0x8b, 0x95, 0x80, 0xb3, 0x38, 0x10, 0x96, 0x80, 0x8f, 0x10, 0x99, 0x14, 0x81, 0x9d, 0x03, 0x38, 0x10, 0x96, 0x80, 0x89, 0x04, 0x10, 0x9f, 0x00, 0x81, 0x8e, 0x81, 0x90, 0x88, 0x02, 0x80, 0xa8, 0x08, 0x8f, 0x04, 0x17, 0x82, 0x97, 0x2c, 0x91, 0x82, 0x97, 0x80, 0x88, 0x00, 0x0e, 0xb9, 0xaf, 0x01, 0x8b, 0x86, 0xb9, 0x08, 0x00, 0x20, 0x97, 0x00, 0x80, 0x89, 0x01, 0x88, 0x01, 0x20, 0x80, 0x94, 0x83, 0x9f, 0x80, 0xbe, 0x38, 0xa3, 0x9a, 0x84, 0xf2, 0xaa, 0x93, 0x80, 0x8f, 0x2b, 0x1a, 0x02, 0x0e, 0x13, 0x8c, 0x8b, 0x80, 0x90, 0xa5, 0x00, 0x20, 0x81, 0xaa, 0x80, 0x41, 0x4c, 0x03, 0x0e, 0x00, 0x03, 0x81, 0xa8, 0x03, 0x81, 0xa0, 0x03, 0x0e, 0x00, 0x03, 0x81, 0x8e, 0x80, 0xb8, 0x03, 0x81, 0xc2, 0xa4, 0x8f, 0x8f, 0xd5, 0x0d, 0x82, 0x42, 0x6b, 0x81, 0x90, 0x80, 0x99, 0x84, 0xca, 0x82, 0x8a, 0x86, 0x8c, 0x03, 0x8d, 0x91, 0x8d, 0x91, 0x8d, 0x8c, 0x02, 0x8e, 0xb3, 0xa2, 0x03, 0x80, 0xc2, 0xd8, 0x86, 0xa8, 0x00, 0x84, 0xc5, 0x89, 0x9e, 0xb0, 0x9d, 0x0c, 0x8a, 0xab, 0x83, 0x99, 0xb5, 0x96, 0x88, 0xb4, 0xd1, 0x80, 0xdc, 0xae, 0x90, 0x86, 0xb6, 0x9d, 0x8c, 0x81, 0x89, 0xab, 0x99, 0xa3, 0xa8, 0x82, 0x89, 0xa3, 0x81, 0x88, 0x86, 0xaa, 0x0a, 0xa8, 0x18, 0x28, 0x0a, 0x04, 0x40, 0xbf, 0xbf, 0x41, 0x15, 0x0d, 0x81, 0xa5, 0x0d, 0x0f, 0x00, 0x00, 0x00, 0x80, 0x9e, 0x81, 0xb4, 0x06, 0x00, 0x12, 0x06, 0x13, 0x0d, 0x83, 0x8c, 0x22, 0x06, 0xf3, 0x80, 0x8c, 0x80, 0x8f, 0x8c, 0xe4, 0x03, 0x01, 0x89, 0x00, 0x0d, 0x28, 0x00, 0x00, 0x80, 0x8f, 0x0b, 0x24, 0x18, 0x90, 0xa8, 0x4a, 0x76, 0xae, 0x80, 0xae, 0x80, 0x40, 0x84, 0x2b, 0x11, 0x8b, 0xa5, 0x00, 0x20, 0x81, 0xb7, 0x30, 0x8f, 0x96, 0x88, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x30, 0x86, 0x42, 0x25, 0x82, 0x98, 0x88, 0x34, 0x0c, 0x83, 0xd5, 0x1c, 0x80, 0xd9, 0x03, 0x84, 0xaa, 0x80, 0xdd, 0x90, 0x9f, 0xaf, 0x8f, 0x41, 0xff, 0x59, 0xbf, 0xbf, 0x60, 0x51, 0xfc, 0x82, 0x44, 0x8c, 0xc2, 0xad, 0x81, 0x41, 0x0c, 0x82, 0x8f, 0x89, 0x81, 0x93, 0xae, 0x8f, 0x9e, 0x81, 0xcf, 0xa6, 0x88, 0x81, 0xe6, 0x81, 0xb4, 0x81, 0x88, 0xa9, 0x8c, 0x02, 0x03, 0x80, 0x96, 0x9c, 0xb3, 0x8d, 0xb1, 0xbd, 0x2a, 0x00, 0x81, 0x8a, 0x9b, 0x89, 0x96, 0x98, 0x9c, 0x86, 0xae, 0x9b, 0x80, 0x8f, 0x20, 0x89, 0x89, 0x20, 0xa8, 0x96, 0x10, 0x87, 0x93, 0x96, 0x10, 0x82, 0xb1, 0x00, 0x11, 0x0c, 0x08, 0x00, 0x97, 0x11, 0x8a, 0x32, 0x8b, 0x29, 0x29, 0x85, 0x88, 0x30, 0x30, 0xaa, 0x80, 0x8d, 0x85, 0xf2, 0x9c, 0x60, 0x2b, 0xa3, 0x8b, 0x96, 0x83, 0xb0, 0x60, 0x21, 0x03, 0x41, 0x6d, 0x81, 0xe9, 0xa5, 0x86, 0x8b, 0x24, 0x00, 0x89, 0x80, 0x8c, 0x04, 0x00, 0x01, 0x01, 0x80, 0xeb, 0xa0, 0x41, 0x6a, 0x91, 0xbf, 0x81, 0xb5, 0xa7, 0x8b, 0xf3, 0x20, 0x40, 0x86, 0xa3, 0x99, 0x85, 0x99, 0x8a, 0xd8, 0x15, 0x0d, 0x0d, 0x0a, 0xa2, 0x8b, 0x80, 0x99, 0x80, 0x92, 0x01, 0x80, 0x8e, 0x81, 0x8d, 0xa1, 0xfa, 0xc4, 0xb4, 0x41, 0x0a, 0x9c, 0x82, 0xb0, 0xae, 0x9f, 0x8c, 0x9d, 0x84, 0xa5, 0x89, 0x9d, 0x81, 0xa3, 0x1f, 0x04, 0xa9, 0x40, 0x9d, 0x91, 0xa3, 0x83, 0xa3, 0x83, 0xa7, 0x87, 0xb3, 0x40, 0x9b, 0x41, 0x36, 0x88, 0x95, 0x89, 0x87, 0x40, 0x97, 0x29, 0x00, 0xab, 0x01, 0x10, 0x81, 0x96, 0x89, 0x96, 0x88, 0x9e, 0xc0, 0x92, 0x01, 0x89, 0x95, 0x89, 0x99, 0xc5, 0xb7, 0x29, 0xbf, 0x80, 0x8e, 0x18, 0x10, 0x9c, 0xa9, 0x9c, 0x82, 0x9c, 0xa2, 0x38, 0x9b, 0x9a, 0xb5, 0x89, 0x95, 0x89, 0x92, 0x8c, 0x91, 0xed, 0xc8, 0xb6, 0xb2, 0x8c, 0xb2, 0x8c, 0xa3, 0x41, 0x5b, 0xa9, 0x29, 0xcd, 0x9c, 0x89, 0x07, 0x95, 0xe9, 0x94, 0x9a, 0x96, 0x8b, 0xb4, 0xca, 0xac, 0x9f, 0x98, 0x99, 0xa3, 0x9c, 0x01, 0x07, 0xa2, 0x10, 0x8b, 0xaf, 0x8d, 0x83, 0x94, 0x00, 0x80, 0xa2, 0x91, 0x80, 0x98, 0xd3, 0x30, 0x00, 0x18, 0x8e, 0x80, 0x89, 0x86, 0xae, 0xa5, 0x39, 0x09, 0x95, 0x06, 0x01, 0x04, 0x10, 0x91, 0x80, 0x8b, 0x84, 0x40, 0x9d, 0xb4, 0x91, 0x83, 0x93, 0x82, 0x9d, 0xaf, 0x93, 0x08, 0x80, 0x40, 0xb7, 0xae, 0xa8, 0x83, 0xa3, 0xaf, 0x93, 0x80, 0xba, 0xaa, 0x8c, 0x80, 0xc6, 0x9a, 0x40, 0xe4, 0xab, 0xf3, 0xbf, 0x9e, 0x39, 0x01, 0x38, 0x08, 0x97, 0x8e, 0x00, 0x80, 0xdd, 0x39, 0xa6, 0x8f, 0x00, 0x80, 0x9b, 0x80, 0x89, 0xa7, 0x30, 0x94, 0x80, 0x8a, 0xad, 0x92, 0x80, 0xa1, 0xb8, 0x41, 0x06, 0x88, 0x80, 0xa4, 0x90, 0x80, 0xb0, 0x9d, 0xef, 0x30, 0x08, 0xa5, 0x94, 0x80, 0x98, 0x28, 0x08, 0x9f, 0x8d, 0x80, 0x41, 0x46, 0x92, 0x40, 0xbc, 0x80, 0xce, 0x43, 0x99, 0xe5, 0xee, 0x90, 0x40, 0xc3, 0x4a, 0xbb, 0x44, 0x2e, 0x4f, 0xd0, 0x42, 0x46, 0x60, 0x21, 0xb8, 0x42, 0x38, 0x86, 0x9e, 0xf0, 0x9d, 0x91, 0xaf, 0x8f, 0x83, 0x9e, 0x94, 0x84, 0x92, 0x42, 0xaf, 0xbf, 0xff, 0xca, 0x20, 0xc1, 0x8c, 0xbf, 0x08, 0x80, 0x9b, 0x57, 0xf7, 0x87, 0x44, 0xd5, 0xa9, 0x88, 0x60, 0x22, 0xf6, 0x41, 0x1e, 0xb0, 0x82, 0x90, 0x1f, 0x41, 0x8b, 0x49, 0x03, 0xea, 0x84, 0x8c, 0x82, 0x88, 0x86, 0x89, 0x57, 0x65, 0xd4, 0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b, 0x80, 0x8b, 0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f, 0x06, 0x80, 0x9b, 0x03, 0x04, 0x00, 0x16, 0x80, 0x41, 0x53, 0x81, 0x98, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x07, 0x49, 0x33, 0xac, 0x89, 0x86, 0x8f, 0x80, 0x41, 0x70, 0xab, 0x45, 0x13, 0x40, 0xc4, 0xba, 0xc3, 0x30, 0x44, 0xb3, 0x18, 0x9a, 0x01, 0x00, 0x08, 0x80, 0x89, 0x03, 0x00, 0x00, 0x28, 0x18, 0x00, 0x00, 0x02, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0b, 0x06, 0x03, 0x03, 0x00, 0x80, 0x89, 0x80, 0x90, 0x22, 0x04, 0x80, 0x90, 0x51, 0x43, 0x60, 0xa6, 0xdd, 0xa1, 0x50, 0x34, 0x8a, 0x40, 0xdd, 0x81, 0x56, 0x81, 0x8d, 0x5d, 0x30, 0x4c, 0x1e, 0x42, 0x1d, 0x45, 0xe1, 0x53, 0x4a, }; static const uint8_t unicode_prop_ID_Start_index[99] = { 0xf6, 0x03, 0x20, 0xa6, 0x07, 0x00, 0xa9, 0x09, 0x00, 0xb4, 0x0a, 0x00, 0xba, 0x0b, 0x00, 0x3e, 0x0d, 0x00, 0xe0, 0x0e, 0x20, 0x57, 0x12, 0x00, 0xeb, 0x16, 0x00, 0xca, 0x19, 0x20, 0xc0, 0x1d, 0x60, 0x80, 0x20, 0x00, 0x2e, 0x2d, 0x00, 0xc0, 0x31, 0x20, 0x89, 0xa7, 0x20, 0xf0, 0xa9, 0x00, 0xe3, 0xab, 0x00, 0x3e, 0xfd, 0x00, 0xfb, 0x00, 0x21, 0x37, 0x07, 0x61, 0x01, 0x0a, 0x01, 0x1d, 0x0f, 0x21, 0x2c, 0x12, 0x01, 0xc8, 0x14, 0x21, 0xd1, 0x19, 0x21, 0x47, 0x1d, 0x01, 0x39, 0x6a, 0x21, 0x09, 0x8d, 0x01, 0xbc, 0xd4, 0x01, 0xa9, 0xd7, 0x21, 0x3a, 0xee, 0x01, 0xde, 0xa6, 0x22, 0x4b, 0x13, 0x03, }; static const uint8_t unicode_prop_ID_Continue1_table[626] = { 0xaf, 0x89, 0xa4, 0x80, 0xd6, 0x80, 0x42, 0x47, 0xef, 0x96, 0x80, 0x40, 0xfa, 0x84, 0x41, 0x08, 0xac, 0x00, 0x01, 0x01, 0x00, 0xc7, 0x8a, 0xaf, 0x9e, 0x28, 0xe4, 0x31, 0x29, 0x08, 0x19, 0x89, 0x96, 0x80, 0x9d, 0x9a, 0xda, 0x8a, 0x8e, 0x89, 0xa0, 0x88, 0x88, 0x80, 0x97, 0x18, 0x88, 0x02, 0x04, 0xaa, 0x82, 0xf6, 0x8e, 0x80, 0xa0, 0xb5, 0x10, 0x91, 0x06, 0x89, 0x09, 0x89, 0x90, 0x82, 0xb7, 0x00, 0x31, 0x09, 0x82, 0x88, 0x80, 0x89, 0x09, 0x89, 0x8d, 0x01, 0x82, 0xb7, 0x00, 0x23, 0x09, 0x12, 0x80, 0x93, 0x8b, 0x10, 0x8a, 0x82, 0xb7, 0x00, 0x38, 0x10, 0x82, 0x93, 0x09, 0x89, 0x89, 0x28, 0x82, 0xb7, 0x00, 0x31, 0x09, 0x16, 0x82, 0x89, 0x09, 0x89, 0x91, 0x80, 0xba, 0x22, 0x10, 0x83, 0x88, 0x80, 0x8d, 0x89, 0x8f, 0x84, 0xb8, 0x30, 0x10, 0x1e, 0x81, 0x8a, 0x09, 0x89, 0x90, 0x82, 0xb7, 0x00, 0x30, 0x10, 0x1e, 0x81, 0x8a, 0x09, 0x89, 0x8f, 0x83, 0xb6, 0x08, 0x30, 0x10, 0x83, 0x88, 0x80, 0x89, 0x09, 0x89, 0x90, 0x82, 0xc5, 0x03, 0x28, 0x00, 0x3d, 0x89, 0x09, 0xbc, 0x01, 0x86, 0x8b, 0x38, 0x89, 0xd6, 0x01, 0x88, 0x8a, 0x29, 0x89, 0xbd, 0x0d, 0x89, 0x8a, 0x00, 0x00, 0x03, 0x81, 0xb0, 0x93, 0x01, 0x84, 0x8a, 0x80, 0xa3, 0x88, 0x80, 0xe3, 0x93, 0x80, 0x89, 0x8b, 0x1b, 0x10, 0x11, 0x32, 0x83, 0x8c, 0x8b, 0x80, 0x8e, 0x42, 0xbe, 0x82, 0x88, 0x88, 0x43, 0x9f, 0x82, 0x9c, 0x82, 0x9c, 0x81, 0x9d, 0x81, 0xbf, 0x9f, 0x88, 0x01, 0x89, 0xa0, 0x11, 0x89, 0x40, 0x8e, 0x80, 0xf5, 0x8b, 0x83, 0x8b, 0x89, 0x89, 0xff, 0x8a, 0xbb, 0x84, 0xb8, 0x89, 0x80, 0x9c, 0x81, 0x8a, 0x85, 0x89, 0x95, 0x8d, 0x01, 0xbe, 0x84, 0xae, 0x90, 0x8a, 0x89, 0x90, 0x88, 0x8b, 0x82, 0x9d, 0x8c, 0x81, 0x89, 0xab, 0x8d, 0xaf, 0x93, 0x87, 0x89, 0x85, 0x89, 0xf5, 0x10, 0x94, 0x18, 0x28, 0x0a, 0x40, 0xc5, 0xb9, 0x04, 0x42, 0x3e, 0x81, 0x92, 0x80, 0xfa, 0x8c, 0x18, 0x82, 0x8b, 0x4b, 0xfd, 0x82, 0x40, 0x8c, 0x80, 0xdf, 0x9f, 0x42, 0x29, 0x85, 0xe8, 0x81, 0x60, 0x75, 0x84, 0x89, 0xc4, 0x03, 0x89, 0x9f, 0x81, 0xcf, 0x81, 0x41, 0x0f, 0x02, 0x03, 0x80, 0x96, 0x23, 0x80, 0xd2, 0x81, 0xb1, 0x91, 0x89, 0x89, 0x85, 0x91, 0x8c, 0x8a, 0x9b, 0x87, 0x98, 0x8c, 0xab, 0x83, 0xae, 0x8d, 0x8e, 0x89, 0x8a, 0x80, 0x89, 0x89, 0xae, 0x8d, 0x8b, 0x07, 0x09, 0x89, 0xa0, 0x82, 0xb1, 0x00, 0x11, 0x0c, 0x08, 0x80, 0xa8, 0x24, 0x81, 0x40, 0xeb, 0x38, 0x09, 0x89, 0x60, 0x4f, 0x23, 0x80, 0x42, 0xe0, 0x8f, 0x8f, 0x8f, 0x11, 0x97, 0x82, 0x40, 0xbf, 0x89, 0xa4, 0x80, 0x42, 0xbc, 0x80, 0x40, 0xe1, 0x80, 0x40, 0x94, 0x84, 0x41, 0x24, 0x89, 0x45, 0x56, 0x10, 0x0c, 0x83, 0xa7, 0x13, 0x80, 0x40, 0xa4, 0x81, 0x42, 0x3c, 0x1f, 0x89, 0x41, 0x70, 0x81, 0x40, 0x98, 0x8a, 0x40, 0xae, 0x82, 0xb4, 0x8e, 0x9e, 0x89, 0x8e, 0x83, 0xac, 0x8a, 0xb4, 0x89, 0x2a, 0xa3, 0x8d, 0x80, 0x89, 0x21, 0xab, 0x80, 0x8b, 0x82, 0xaf, 0x8d, 0x3b, 0x80, 0x8b, 0xd1, 0x8b, 0x28, 0x40, 0x9f, 0x8b, 0x84, 0x89, 0x2b, 0xb6, 0x08, 0x31, 0x09, 0x82, 0x88, 0x80, 0x89, 0x09, 0x32, 0x84, 0x40, 0xbf, 0x91, 0x88, 0x89, 0x18, 0xd0, 0x93, 0x8b, 0x89, 0x40, 0xd4, 0x31, 0x88, 0x9a, 0x81, 0xd1, 0x90, 0x8e, 0x89, 0xd0, 0x8c, 0x87, 0x89, 0xd2, 0x8e, 0x83, 0x89, 0x40, 0xf1, 0x8e, 0x40, 0xa4, 0x89, 0xc5, 0x28, 0x09, 0x18, 0x00, 0x81, 0x8b, 0x89, 0xf6, 0x31, 0x32, 0x80, 0x9b, 0x89, 0xa7, 0x30, 0x1f, 0x80, 0x88, 0x8a, 0xad, 0x8f, 0x41, 0x94, 0x38, 0x87, 0x8f, 0x89, 0xb7, 0x95, 0x80, 0x8d, 0xf9, 0x2a, 0x00, 0x08, 0x30, 0x07, 0x89, 0xaf, 0x20, 0x08, 0x27, 0x89, 0x41, 0x48, 0x83, 0x60, 0x4b, 0x68, 0x89, 0x40, 0x85, 0x84, 0xba, 0x86, 0x98, 0x89, 0x43, 0xf4, 0x00, 0xb6, 0x33, 0xd0, 0x80, 0x8a, 0x81, 0x60, 0x4c, 0xaa, 0x81, 0x54, 0xc5, 0x22, 0x2f, 0x39, 0x86, 0x9d, 0x83, 0x40, 0x93, 0x82, 0x45, 0x88, 0xb1, 0x41, 0xff, 0xb6, 0x83, 0xb1, 0x38, 0x8d, 0x80, 0x95, 0x20, 0x8e, 0x45, 0x4f, 0x30, 0x90, 0x0e, 0x01, 0x04, 0x41, 0x04, 0x86, 0x88, 0x89, 0x41, 0xa1, 0x8d, 0x45, 0xd5, 0x86, 0xec, 0x34, 0x89, 0x52, 0x95, 0x89, 0x6c, 0x05, 0x05, 0x40, 0xef, }; static const uint8_t unicode_prop_ID_Continue1_index[60] = { 0xfa, 0x06, 0x00, 0x84, 0x09, 0x00, 0xf0, 0x0a, 0x00, 0x70, 0x0c, 0x00, 0xf4, 0x0d, 0x00, 0x4a, 0x10, 0x20, 0x1a, 0x18, 0x20, 0x74, 0x1b, 0x20, 0xdd, 0x20, 0x00, 0x0c, 0xa8, 0x00, 0x5a, 0xaa, 0x20, 0x1a, 0xff, 0x00, 0xad, 0x0e, 0x01, 0x38, 0x12, 0x21, 0xc1, 0x15, 0x21, 0xe5, 0x19, 0x21, 0xaa, 0x1d, 0x21, 0x8c, 0xd1, 0x41, 0x4a, 0xe1, 0x21, 0xf0, 0x01, 0x0e, }; #ifdef CONFIG_ALL_UNICODE static const uint8_t unicode_cc_table[851] = { 0xb2, 0xcf, 0xd4, 0x00, 0xe8, 0x03, 0xdc, 0x00, 0xe8, 0x00, 0xd8, 0x04, 0xdc, 0x01, 0xca, 0x03, 0xdc, 0x01, 0xca, 0x0a, 0xdc, 0x04, 0x01, 0x03, 0xdc, 0xc7, 0x00, 0xf0, 0xc0, 0x02, 0xdc, 0xc2, 0x01, 0xdc, 0x80, 0xc2, 0x03, 0xdc, 0xc0, 0x00, 0xe8, 0x01, 0xdc, 0xc0, 0x41, 0xe9, 0x00, 0xea, 0x41, 0xe9, 0x00, 0xea, 0x00, 0xe9, 0xcc, 0xb0, 0xe2, 0xc4, 0xb0, 0xd8, 0x00, 0xdc, 0xc3, 0x00, 0xdc, 0xc2, 0x00, 0xde, 0x00, 0xdc, 0xc5, 0x05, 0xdc, 0xc1, 0x00, 0xdc, 0xc1, 0x00, 0xde, 0x00, 0xe4, 0xc0, 0x49, 0x0a, 0x43, 0x13, 0x80, 0x00, 0x17, 0x80, 0x41, 0x18, 0x80, 0xc0, 0x00, 0xdc, 0x80, 0x00, 0x12, 0xb0, 0x17, 0xc7, 0x42, 0x1e, 0xaf, 0x47, 0x1b, 0xc1, 0x01, 0xdc, 0xc4, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0x8f, 0x00, 0x23, 0xb0, 0x34, 0xc6, 0x81, 0xc3, 0x00, 0xdc, 0xc0, 0x81, 0xc1, 0x80, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0xa2, 0x00, 0x24, 0x9d, 0xc0, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0xc1, 0x02, 0xdc, 0xc0, 0x01, 0xdc, 0xc0, 0x00, 0xdc, 0xc2, 0x00, 0xdc, 0xc0, 0x00, 0xdc, 0xc0, 0x00, 0xdc, 0xc0, 0x00, 0xdc, 0xc1, 0xb0, 0x6f, 0xc6, 0x00, 0xdc, 0xc0, 0x88, 0x00, 0xdc, 0x97, 0xc3, 0x80, 0xc8, 0x80, 0xc2, 0x80, 0xc4, 0xaa, 0x02, 0xdc, 0xb0, 0x46, 0x00, 0xdc, 0xcd, 0x80, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0xc2, 0x02, 0xdc, 0x42, 0x1b, 0xc2, 0x00, 0xdc, 0xc1, 0x01, 0xdc, 0xc4, 0xb0, 0x0b, 0x00, 0x07, 0x8f, 0x00, 0x09, 0x82, 0xc0, 0x00, 0xdc, 0xc1, 0xb0, 0x36, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xaf, 0xc0, 0xb0, 0x0c, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0, 0x3d, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0, 0x3d, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0, 0x4e, 0x00, 0x09, 0xb0, 0x4e, 0x00, 0x09, 0x86, 0x00, 0x54, 0x00, 0x5b, 0xb0, 0x34, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0, 0x3c, 0x01, 0x09, 0x8f, 0x00, 0x09, 0xb0, 0x4b, 0x00, 0x09, 0xb0, 0x3c, 0x01, 0x67, 0x00, 0x09, 0x8c, 0x03, 0x6b, 0xb0, 0x3b, 0x01, 0x76, 0x00, 0x09, 0x8c, 0x03, 0x7a, 0xb0, 0x1b, 0x01, 0xdc, 0x9a, 0x00, 0xdc, 0x80, 0x00, 0xdc, 0x80, 0x00, 0xd8, 0xb0, 0x06, 0x41, 0x81, 0x80, 0x00, 0x84, 0x84, 0x03, 0x82, 0x81, 0x00, 0x82, 0x80, 0xc1, 0x00, 0x09, 0x80, 0xc1, 0xb0, 0x0d, 0x00, 0xdc, 0xb0, 0x3f, 0x00, 0x07, 0x80, 0x01, 0x09, 0xb0, 0x21, 0x00, 0xdc, 0xb2, 0x9e, 0xc2, 0xb3, 0x83, 0x00, 0x09, 0x9e, 0x00, 0x09, 0xb0, 0x6c, 0x00, 0x09, 0x89, 0xc0, 0xb0, 0x9a, 0x00, 0xe4, 0xb0, 0x5e, 0x00, 0xde, 0xc0, 0x00, 0xdc, 0xb0, 0xaa, 0xc0, 0x00, 0xdc, 0xb0, 0x16, 0x00, 0x09, 0x93, 0xc7, 0x81, 0x00, 0xdc, 0xaf, 0xc4, 0x05, 0xdc, 0xc1, 0x00, 0xdc, 0x80, 0x01, 0xdc, 0xb0, 0x42, 0x00, 0x07, 0x8e, 0x00, 0x09, 0xa5, 0xc0, 0x00, 0xdc, 0xc6, 0xb0, 0x05, 0x01, 0x09, 0xb0, 0x09, 0x00, 0x07, 0x8a, 0x01, 0x09, 0xb0, 0x12, 0x00, 0x07, 0xb0, 0x67, 0xc2, 0x41, 0x00, 0x04, 0xdc, 0xc1, 0x03, 0xdc, 0xc0, 0x41, 0x00, 0x05, 0x01, 0x83, 0x00, 0xdc, 0x85, 0xc0, 0x82, 0xc1, 0xb0, 0x95, 0xc1, 0x00, 0xdc, 0xc6, 0x00, 0xdc, 0xc1, 0x00, 0xea, 0x00, 0xd6, 0x00, 0xdc, 0x00, 0xca, 0xe4, 0x00, 0xe8, 0x01, 0xe4, 0x00, 0xdc, 0x80, 0xc0, 0x00, 0xe9, 0x00, 0xdc, 0xc0, 0x00, 0xdc, 0xb2, 0x9f, 0xc1, 0x01, 0x01, 0xc3, 0x02, 0x01, 0xc1, 0x83, 0xc0, 0x82, 0x01, 0x01, 0xc0, 0x00, 0xdc, 0xc0, 0x01, 0x01, 0x03, 0xdc, 0xc0, 0xb8, 0x03, 0xcd, 0xc2, 0xb0, 0x5c, 0x00, 0x09, 0xb0, 0x2f, 0xdf, 0xb1, 0xf9, 0x00, 0xda, 0x00, 0xe4, 0x00, 0xe8, 0x00, 0xde, 0x01, 0xe0, 0xb0, 0x38, 0x01, 0x08, 0xb8, 0x6d, 0xa3, 0xc0, 0x83, 0xc9, 0x9f, 0xc1, 0xb0, 0x1f, 0xc1, 0xb0, 0xe3, 0x00, 0x09, 0xa4, 0x00, 0x09, 0xb0, 0x66, 0x00, 0x09, 0x9a, 0xd1, 0xb0, 0x08, 0x02, 0xdc, 0xa4, 0x00, 0x09, 0xb0, 0x2e, 0x00, 0x07, 0x8b, 0x00, 0x09, 0xb0, 0xbe, 0xc0, 0x80, 0xc1, 0x00, 0xdc, 0x81, 0xc1, 0x84, 0xc1, 0x80, 0xc0, 0xb0, 0x03, 0x00, 0x09, 0xb0, 0xc5, 0x00, 0x09, 0xb8, 0x46, 0xff, 0x00, 0x1a, 0xb2, 0xd0, 0xc6, 0x06, 0xdc, 0xc1, 0xb3, 0x9c, 0x00, 0xdc, 0xb0, 0xb1, 0x00, 0xdc, 0xb0, 0x64, 0xc4, 0xb6, 0x61, 0x00, 0xdc, 0x80, 0xc0, 0xa7, 0xc0, 0x00, 0x01, 0x00, 0xdc, 0x83, 0x00, 0x09, 0xb0, 0x74, 0xc0, 0x00, 0xdc, 0xb2, 0x0c, 0xc3, 0xb1, 0x52, 0xc1, 0xb0, 0x68, 0x01, 0xdc, 0xc2, 0x00, 0xdc, 0xc0, 0x03, 0xdc, 0xb0, 0xc4, 0x00, 0x09, 0xb0, 0x07, 0x00, 0x09, 0xb0, 0x08, 0x00, 0x09, 0x00, 0x07, 0xb0, 0x14, 0xc2, 0xaf, 0x01, 0x09, 0xb0, 0x0d, 0x00, 0x07, 0xb0, 0x1b, 0x00, 0x09, 0x88, 0x00, 0x07, 0xb0, 0x39, 0x00, 0x09, 0x00, 0x07, 0xb0, 0x81, 0x00, 0x07, 0x00, 0x09, 0xb0, 0x1f, 0x01, 0x07, 0x8f, 0x00, 0x09, 0x97, 0xc6, 0x82, 0xc4, 0xb0, 0x9c, 0x00, 0x09, 0x82, 0x00, 0x07, 0x96, 0xc0, 0xb0, 0x32, 0x00, 0x09, 0x00, 0x07, 0xb0, 0xca, 0x00, 0x09, 0x00, 0x07, 0xb0, 0x4d, 0x00, 0x09, 0xb0, 0x45, 0x00, 0x09, 0x00, 0x07, 0xb0, 0x42, 0x00, 0x09, 0xb0, 0xdc, 0x00, 0x09, 0x00, 0x07, 0xb0, 0xd1, 0x01, 0x09, 0x83, 0x00, 0x07, 0xb0, 0x6b, 0x00, 0x09, 0xb0, 0x22, 0x00, 0x09, 0x91, 0x00, 0x09, 0xb0, 0x20, 0x00, 0x09, 0xb1, 0x74, 0x00, 0x09, 0xb0, 0xd1, 0x00, 0x07, 0x80, 0x01, 0x09, 0xb0, 0x20, 0x00, 0x09, 0xb8, 0x45, 0x27, 0x04, 0x01, 0xb0, 0x0a, 0xc6, 0xb4, 0x88, 0x01, 0x06, 0xb8, 0x44, 0x7b, 0x00, 0x01, 0xb8, 0x0c, 0x95, 0x01, 0xd8, 0x02, 0x01, 0x82, 0x00, 0xe2, 0x04, 0xd8, 0x87, 0x07, 0xdc, 0x81, 0xc4, 0x01, 0xdc, 0x9d, 0xc3, 0xb0, 0x63, 0xc2, 0xb8, 0x05, 0x8a, 0xc6, 0x80, 0xd0, 0x81, 0xc6, 0x80, 0xc1, 0x80, 0xc4, 0xb0, 0xd4, 0xc6, 0xb1, 0x84, 0xc3, 0xb5, 0xaf, 0x06, 0xdc, 0xb0, 0x3c, 0xc5, 0x00, 0x07, }; static const uint8_t unicode_cc_index[81] = { 0x4d, 0x03, 0x00, 0x97, 0x05, 0x20, 0xc6, 0x05, 0x00, 0xe7, 0x06, 0x00, 0x45, 0x07, 0x00, 0xe2, 0x08, 0x00, 0x53, 0x09, 0x00, 0xcd, 0x0b, 0x20, 0x38, 0x0e, 0x00, 0x73, 0x0f, 0x20, 0x5d, 0x13, 0x20, 0x60, 0x1a, 0x20, 0xaa, 0x1b, 0x00, 0xf4, 0x1c, 0x00, 0xfe, 0x1d, 0x20, 0x7f, 0x2d, 0x20, 0xf0, 0xa6, 0x00, 0xb2, 0xaa, 0x00, 0xfe, 0x01, 0x01, 0xab, 0x0e, 0x01, 0x73, 0x11, 0x21, 0x70, 0x13, 0x01, 0xb8, 0x16, 0x01, 0x9a, 0x1a, 0x01, 0x9f, 0xbc, 0x01, 0x22, 0xe0, 0x01, 0x4b, 0xe9, 0x01, }; static const uint32_t unicode_decomp_table1[690] = { 0x00280081, 0x002a0097, 0x002a8081, 0x002bc097, 0x002c8115, 0x002d0097, 0x002d4081, 0x002e0097, 0x002e4115, 0x002f0199, 0x00302016, 0x00400842, 0x00448a42, 0x004a0442, 0x004c0096, 0x004c8117, 0x004d0242, 0x004e4342, 0x004fc12f, 0x0050c342, 0x005240bf, 0x00530342, 0x00550942, 0x005a0842, 0x005e0096, 0x005e4342, 0x005fc081, 0x00680142, 0x006bc142, 0x00710185, 0x0071c317, 0x00734844, 0x00778344, 0x00798342, 0x007b02be, 0x007c4197, 0x007d0142, 0x007e0444, 0x00800e42, 0x00878142, 0x00898744, 0x00ac0483, 0x00b60317, 0x00b80283, 0x00d00214, 0x00d10096, 0x00dd0080, 0x00de8097, 0x00df8080, 0x00e10097, 0x00e1413e, 0x00e1c080, 0x00e204be, 0x00ea83ae, 0x00f282ae, 0x00f401ad, 0x00f4c12e, 0x00f54103, 0x00fc0303, 0x00fe4081, 0x0100023e, 0x0101c0be, 0x010301be, 0x010640be, 0x010e40be, 0x0114023e, 0x0115c0be, 0x011701be, 0x011d8144, 0x01304144, 0x01340244, 0x01358144, 0x01368344, 0x01388344, 0x013a8644, 0x013e0144, 0x0161c085, 0x018882ae, 0x019d422f, 0x01b00184, 0x01b4c084, 0x024a4084, 0x024c4084, 0x024d0084, 0x0256042e, 0x0272c12e, 0x02770120, 0x0277c084, 0x028cc084, 0x028d8084, 0x029641ae, 0x02978084, 0x02d20084, 0x02d2c12e, 0x02d70120, 0x02e50084, 0x02f281ae, 0x03120084, 0x03300084, 0x0331c122, 0x0332812e, 0x035281ae, 0x03768084, 0x037701ae, 0x038cc085, 0x03acc085, 0x03b7012f, 0x03c30081, 0x03d0c084, 0x03d34084, 0x03d48084, 0x03d5c084, 0x03d70084, 0x03da4084, 0x03dcc084, 0x03dd412e, 0x03ddc085, 0x03de0084, 0x03de4085, 0x03e04084, 0x03e4c084, 0x03e74084, 0x03e88084, 0x03e9c084, 0x03eb0084, 0x03ee4084, 0x04098084, 0x043f0081, 0x06c18484, 0x06c48084, 0x06cec184, 0x06d00120, 0x06d0c084, 0x074b0383, 0x074cc41f, 0x074f1783, 0x075e0081, 0x0766d283, 0x07801d44, 0x078e8942, 0x07931844, 0x079f0d42, 0x07a58216, 0x07a68085, 0x07a6c0be, 0x07a80d44, 0x07aea044, 0x07c00122, 0x07c08344, 0x07c20122, 0x07c28344, 0x07c40122, 0x07c48244, 0x07c60122, 0x07c68244, 0x07c8113e, 0x07d08244, 0x07d20122, 0x07d28244, 0x07d40122, 0x07d48344, 0x07d64c3e, 0x07dc4080, 0x07dc80be, 0x07dcc080, 0x07dd00be, 0x07dd4080, 0x07dd80be, 0x07ddc080, 0x07de00be, 0x07de4080, 0x07de80be, 0x07dec080, 0x07df00be, 0x07df4080, 0x07e00820, 0x07e40820, 0x07e80820, 0x07ec05be, 0x07eec080, 0x07ef00be, 0x07ef4097, 0x07ef8080, 0x07efc117, 0x07f0443e, 0x07f24080, 0x07f280be, 0x07f2c080, 0x07f303be, 0x07f4c080, 0x07f582ae, 0x07f6c080, 0x07f7433e, 0x07f8c080, 0x07f903ae, 0x07fac080, 0x07fb013e, 0x07fb8102, 0x07fc83be, 0x07fe4080, 0x07fe80be, 0x07fec080, 0x07ff00be, 0x07ff4080, 0x07ff8097, 0x0800011e, 0x08008495, 0x08044081, 0x0805c097, 0x08090081, 0x08094097, 0x08098099, 0x080bc081, 0x080cc085, 0x080d00b1, 0x080d8085, 0x080dc0b1, 0x080f0197, 0x0811c197, 0x0815c0b3, 0x0817c081, 0x081c0595, 0x081ec081, 0x081f0215, 0x0820051f, 0x08228583, 0x08254415, 0x082a0097, 0x08400119, 0x08408081, 0x0840c0bf, 0x08414119, 0x0841c081, 0x084240bf, 0x0842852d, 0x08454081, 0x08458097, 0x08464295, 0x08480097, 0x08484099, 0x08488097, 0x08490081, 0x08498080, 0x084a0081, 0x084a8102, 0x084b0495, 0x084d421f, 0x084e4081, 0x084ec099, 0x084f0283, 0x08514295, 0x08540119, 0x0854809b, 0x0854c619, 0x0857c097, 0x08580081, 0x08584097, 0x08588099, 0x0858c097, 0x08590081, 0x08594097, 0x08598099, 0x0859c09b, 0x085a0097, 0x085a4081, 0x085a8097, 0x085ac099, 0x085b0295, 0x085c4097, 0x085c8099, 0x085cc097, 0x085d0081, 0x085d4097, 0x085d8099, 0x085dc09b, 0x085e0097, 0x085e4081, 0x085e8097, 0x085ec099, 0x085f0215, 0x08624099, 0x0866813e, 0x086b80be, 0x087341be, 0x088100be, 0x088240be, 0x088300be, 0x088901be, 0x088b0085, 0x088b40b1, 0x088bc085, 0x088c00b1, 0x089040be, 0x089100be, 0x0891c1be, 0x089801be, 0x089b42be, 0x089d0144, 0x089e0144, 0x08a00144, 0x08a10144, 0x08a20144, 0x08ab023e, 0x08b80244, 0x08ba8220, 0x08ca411e, 0x0918049f, 0x091a4523, 0x091cc097, 0x091d04a5, 0x091f452b, 0x0921c09b, 0x092204a1, 0x09244525, 0x0926c099, 0x09270d25, 0x092d8d1f, 0x09340d1f, 0x093a8081, 0x0a8300b3, 0x0a9d0099, 0x0a9d4097, 0x0a9d8099, 0x0ab700be, 0x0b1f0115, 0x0b5bc081, 0x0ba7c081, 0x0bbcc081, 0x0bc004ad, 0x0bc244ad, 0x0bc484ad, 0x0bc6f383, 0x0be0852d, 0x0be31d03, 0x0bf1882d, 0x0c000081, 0x0c0d8283, 0x0c130b84, 0x0c194284, 0x0c1c0122, 0x0c1cc122, 0x0c1d8122, 0x0c1e4122, 0x0c1f0122, 0x0c250084, 0x0c26c123, 0x0c278084, 0x0c27c085, 0x0c2b0b84, 0x0c314284, 0x0c340122, 0x0c34c122, 0x0c358122, 0x0c364122, 0x0c370122, 0x0c3d0084, 0x0c3dc220, 0x0c3f8084, 0x0c3fc085, 0x0c4c4a2d, 0x0c51451f, 0x0c53ca9f, 0x0c5915ad, 0x0c648703, 0x0c800741, 0x0c838089, 0x0c83c129, 0x0c8441a9, 0x0c850089, 0x0c854129, 0x0c85c2a9, 0x0c870089, 0x0c87408f, 0x0c87808d, 0x0c881241, 0x0c910203, 0x0c940099, 0x0c9444a3, 0x0c968323, 0x0c98072d, 0x0c9b84af, 0x0c9dc2a1, 0x0c9f00b5, 0x0c9f40b3, 0x0c9f8085, 0x0ca01883, 0x0cac4223, 0x0cad4523, 0x0cafc097, 0x0cb004a1, 0x0cb241a5, 0x0cb30097, 0x0cb34099, 0x0cb38097, 0x0cb3c099, 0x0cb417ad, 0x0cbfc085, 0x0cc001b3, 0x0cc0c0b1, 0x0cc100b3, 0x0cc14131, 0x0cc1c0b5, 0x0cc200b3, 0x0cc241b1, 0x0cc30133, 0x0cc38131, 0x0cc40085, 0x0cc440b1, 0x0cc48133, 0x0cc50085, 0x0cc540b5, 0x0cc580b7, 0x0cc5c0b5, 0x0cc600b1, 0x0cc64135, 0x0cc6c0b3, 0x0cc701b1, 0x0cc7c0b3, 0x0cc800b5, 0x0cc840b3, 0x0cc881b1, 0x0cc9422f, 0x0cca4131, 0x0ccac0b5, 0x0ccb00b1, 0x0ccb40b3, 0x0ccb80b5, 0x0ccbc0b1, 0x0ccc012f, 0x0ccc80b5, 0x0cccc0b3, 0x0ccd00b5, 0x0ccd40b1, 0x0ccd80b5, 0x0ccdc085, 0x0cce02b1, 0x0ccf40b3, 0x0ccf80b1, 0x0ccfc085, 0x0cd001b1, 0x0cd0c0b3, 0x0cd101b1, 0x0cd1c0b5, 0x0cd200b3, 0x0cd24085, 0x0cd280b5, 0x0cd2c085, 0x0cd30133, 0x0cd381b1, 0x0cd440b3, 0x0cd48085, 0x0cd4c0b1, 0x0cd500b3, 0x0cd54085, 0x0cd580b5, 0x0cd5c0b1, 0x0cd60521, 0x0cd88525, 0x0cdb02a5, 0x0cdc4099, 0x0cdc8117, 0x0cdd0099, 0x0cdd4197, 0x0cde0127, 0x0cde8285, 0x0cdfc089, 0x0ce0043f, 0x0ce20099, 0x0ce2409b, 0x0ce283bf, 0x0ce44219, 0x0ce54205, 0x0ce6433f, 0x0ce7c131, 0x0ce84085, 0x0ce881b1, 0x0ce94085, 0x0ce98107, 0x0cea0089, 0x0cea4097, 0x0cea8219, 0x0ceb809d, 0x0cebc08d, 0x0cec083f, 0x0cf00105, 0x0cf0809b, 0x0cf0c197, 0x0cf1809b, 0x0cf1c099, 0x0cf20517, 0x0cf48099, 0x0cf4c117, 0x0cf54119, 0x0cf5c097, 0x0cf6009b, 0x0cf64099, 0x0cf68217, 0x0cf78119, 0x0cf804a1, 0x0cfa4525, 0x0cfcc525, 0x0cff4125, 0x0cffc099, 0x29a70103, 0x29dc0081, 0x29fe0103, 0x2ad70203, 0x2ada4081, 0x3e401482, 0x3e4a7f82, 0x3e6a3f82, 0x3e8aa102, 0x3e9b0110, 0x3e9c2f82, 0x3eb3c590, 0x3ec00197, 0x3ec0c119, 0x3ec1413f, 0x3ec4c2af, 0x3ec74184, 0x3ec804ad, 0x3eca4081, 0x3eca8304, 0x3ecc03a0, 0x3ece02a0, 0x3ecf8084, 0x3ed00120, 0x3ed0c120, 0x3ed184ae, 0x3ed3c085, 0x3ed4312d, 0x3ef4cbad, 0x3efa892f, 0x3eff022d, 0x3f002f2f, 0x3f1782a5, 0x3f18c0b1, 0x3f1907af, 0x3f1cffaf, 0x3f3c81a5, 0x3f3d64af, 0x3f542031, 0x3f649b31, 0x3f7c0131, 0x3f7c83b3, 0x3f7e40b1, 0x3f7e80bd, 0x3f7ec0bb, 0x3f7f00b3, 0x3f840503, 0x3f8c01ad, 0x3f8cc315, 0x3f8e462d, 0x3f91cc03, 0x3f97c695, 0x3f9c01af, 0x3f9d0085, 0x3f9d852f, 0x3fa03aad, 0x3fbd442f, 0x3fc06f1f, 0x3fd7c11f, 0x3fd85fad, 0x3fe80081, 0x3fe84f1f, 0x3ff0831f, 0x3ff2831f, 0x3ff4831f, 0x3ff6819f, 0x3ff80783, 0x44268192, 0x442ac092, 0x444b8112, 0x44d2c112, 0x452ec212, 0x456e8112, 0x464e0092, 0x74578392, 0x746ec312, 0x75000d1f, 0x75068d1f, 0x750d0d1f, 0x7513839f, 0x7515891f, 0x751a0d1f, 0x75208d1f, 0x75271015, 0x752f439f, 0x7531459f, 0x75340d1f, 0x753a8d1f, 0x75410395, 0x7543441f, 0x7545839f, 0x75478d1f, 0x754e0795, 0x7552839f, 0x75548d1f, 0x755b0d1f, 0x75618d1f, 0x75680d1f, 0x756e8d1f, 0x75750d1f, 0x757b8d1f, 0x75820d1f, 0x75888d1f, 0x758f0d1f, 0x75958d1f, 0x759c0d1f, 0x75a28d1f, 0x75a90103, 0x75aa089f, 0x75ae4081, 0x75ae839f, 0x75b04081, 0x75b08c9f, 0x75b6c081, 0x75b7032d, 0x75b8889f, 0x75bcc081, 0x75bd039f, 0x75bec081, 0x75bf0c9f, 0x75c54081, 0x75c5832d, 0x75c7089f, 0x75cb4081, 0x75cb839f, 0x75cd4081, 0x75cd8c9f, 0x75d3c081, 0x75d4032d, 0x75d5889f, 0x75d9c081, 0x75da039f, 0x75dbc081, 0x75dc0c9f, 0x75e24081, 0x75e2832d, 0x75e4089f, 0x75e84081, 0x75e8839f, 0x75ea4081, 0x75ea8c9f, 0x75f0c081, 0x75f1042d, 0x75f3851f, 0x75f6051f, 0x75f8851f, 0x75fb051f, 0x75fd851f, 0x7b80022d, 0x7b814dad, 0x7b884203, 0x7b89c081, 0x7b8a452d, 0x7b8d0403, 0x7b908081, 0x7b91dc03, 0x7ba0052d, 0x7ba2c8ad, 0x7ba84483, 0x7baac8ad, 0x7c400097, 0x7c404521, 0x7c440d25, 0x7c4a8087, 0x7c4ac115, 0x7c4b4117, 0x7c4c0d1f, 0x7c528217, 0x7c538099, 0x7c53c097, 0x7c5a8197, 0x7c640097, 0x7c80012f, 0x7c808081, 0x7c841603, 0x7c9004c1, 0x7c940103, 0x7efc051f, 0xbe0001ac, 0xbe00d110, 0xbe0947ac, 0xbe0d3910, 0xbe29872c, 0xbe2d022c, 0xbe2e3790, 0xbe49ff90, 0xbe69bc10, }; static const uint16_t unicode_decomp_table2[690] = { 0x0020, 0x0000, 0x0061, 0x0002, 0x0004, 0x0006, 0x03bc, 0x0008, 0x000a, 0x000c, 0x0015, 0x0095, 0x00a5, 0x00b9, 0x00c1, 0x00c3, 0x00c7, 0x00cb, 0x00d1, 0x00d7, 0x00dd, 0x00e0, 0x00e6, 0x00f8, 0x0108, 0x010a, 0x0073, 0x0110, 0x0112, 0x0114, 0x0120, 0x012c, 0x0144, 0x014d, 0x0153, 0x0162, 0x0168, 0x016a, 0x0176, 0x0192, 0x0194, 0x01a9, 0x01bb, 0x01c7, 0x01d1, 0x01d5, 0x02b9, 0x01d7, 0x003b, 0x01d9, 0x01db, 0x00b7, 0x01e1, 0x01fc, 0x020c, 0x0218, 0x021d, 0x0223, 0x0227, 0x03a3, 0x0233, 0x023f, 0x0242, 0x024b, 0x024e, 0x0251, 0x025d, 0x0260, 0x0269, 0x026c, 0x026f, 0x0275, 0x0278, 0x0281, 0x028a, 0x029c, 0x029f, 0x02a3, 0x02af, 0x02b9, 0x02c5, 0x02c9, 0x02cd, 0x02d1, 0x02d5, 0x02e7, 0x02ed, 0x02f1, 0x02f5, 0x02f9, 0x02fd, 0x0305, 0x0309, 0x030d, 0x0313, 0x0317, 0x031b, 0x0323, 0x0327, 0x032b, 0x032f, 0x0335, 0x033d, 0x0341, 0x0349, 0x034d, 0x0351, 0x0f0b, 0x0357, 0x035b, 0x035f, 0x0363, 0x0367, 0x036b, 0x036f, 0x0373, 0x0379, 0x037d, 0x0381, 0x0385, 0x0389, 0x038d, 0x0391, 0x0395, 0x0399, 0x039d, 0x03a1, 0x10dc, 0x03a5, 0x03c9, 0x03cd, 0x03d9, 0x03dd, 0x03e1, 0x03ef, 0x03f1, 0x043d, 0x044f, 0x0499, 0x04f0, 0x0502, 0x054a, 0x0564, 0x056c, 0x0570, 0x0573, 0x059a, 0x05fa, 0x05fe, 0x0607, 0x060b, 0x0614, 0x0618, 0x061e, 0x0622, 0x0628, 0x068e, 0x0694, 0x0698, 0x069e, 0x06a2, 0x06ab, 0x03ac, 0x06f3, 0x03ad, 0x06f6, 0x03ae, 0x06f9, 0x03af, 0x06fc, 0x03cc, 0x06ff, 0x03cd, 0x0702, 0x03ce, 0x0705, 0x0709, 0x070d, 0x0711, 0x0386, 0x0732, 0x0735, 0x03b9, 0x0737, 0x073b, 0x0388, 0x0753, 0x0389, 0x0756, 0x0390, 0x076b, 0x038a, 0x0777, 0x03b0, 0x0789, 0x038e, 0x0799, 0x079f, 0x07a3, 0x038c, 0x07b8, 0x038f, 0x07bb, 0x00b4, 0x07be, 0x07c0, 0x07c2, 0x2010, 0x07cb, 0x002e, 0x07cd, 0x07cf, 0x0020, 0x07d2, 0x07d6, 0x07db, 0x07df, 0x07e4, 0x07ea, 0x07f0, 0x0020, 0x07f6, 0x2212, 0x0801, 0x0805, 0x0807, 0x081d, 0x0825, 0x0827, 0x0043, 0x082d, 0x0830, 0x0190, 0x0836, 0x0839, 0x004e, 0x0845, 0x0847, 0x084c, 0x084e, 0x0851, 0x005a, 0x03a9, 0x005a, 0x0853, 0x0857, 0x0860, 0x0069, 0x0862, 0x0865, 0x086f, 0x0874, 0x087a, 0x087e, 0x08a2, 0x0049, 0x08a4, 0x08a6, 0x08a9, 0x0056, 0x08ab, 0x08ad, 0x08b0, 0x08b4, 0x0058, 0x08b6, 0x08b8, 0x08bb, 0x08c0, 0x08c2, 0x08c5, 0x0076, 0x08c7, 0x08c9, 0x08cc, 0x08d0, 0x0078, 0x08d2, 0x08d4, 0x08d7, 0x08db, 0x08de, 0x08e4, 0x08e7, 0x08f0, 0x08f3, 0x08f6, 0x08f9, 0x0902, 0x0906, 0x090b, 0x090f, 0x0914, 0x0917, 0x091a, 0x0923, 0x092c, 0x093b, 0x093e, 0x0941, 0x0944, 0x0947, 0x094a, 0x0956, 0x095c, 0x0960, 0x0962, 0x0964, 0x0968, 0x096a, 0x0970, 0x0978, 0x097c, 0x0980, 0x0986, 0x0989, 0x098f, 0x0991, 0x0030, 0x0993, 0x0999, 0x099c, 0x099e, 0x09a1, 0x09a4, 0x2d61, 0x6bcd, 0x9f9f, 0x09a6, 0x09b1, 0x09bc, 0x09c7, 0x0a95, 0x0aa1, 0x0b15, 0x0020, 0x0b27, 0x0b31, 0x0b8d, 0x0ba1, 0x0ba5, 0x0ba9, 0x0bad, 0x0bb1, 0x0bb5, 0x0bb9, 0x0bbd, 0x0bc1, 0x0bc5, 0x0c21, 0x0c35, 0x0c39, 0x0c3d, 0x0c41, 0x0c45, 0x0c49, 0x0c4d, 0x0c51, 0x0c55, 0x0c59, 0x0c6f, 0x0c71, 0x0c73, 0x0ca0, 0x0cbc, 0x0cdc, 0x0ce4, 0x0cec, 0x0cf4, 0x0cfc, 0x0d04, 0x0d0c, 0x0d14, 0x0d22, 0x0d2e, 0x0d7a, 0x0d82, 0x0d85, 0x0d89, 0x0d8d, 0x0d9d, 0x0db1, 0x0db5, 0x0dbc, 0x0dc2, 0x0dc6, 0x0e28, 0x0e2c, 0x0e30, 0x0e32, 0x0e36, 0x0e3c, 0x0e3e, 0x0e41, 0x0e43, 0x0e46, 0x0e77, 0x0e7b, 0x0e89, 0x0e8e, 0x0e94, 0x0e9c, 0x0ea3, 0x0ea9, 0x0eb4, 0x0ebe, 0x0ec6, 0x0eca, 0x0ecf, 0x0ed9, 0x0edd, 0x0ee4, 0x0eec, 0x0ef3, 0x0ef8, 0x0f04, 0x0f0a, 0x0f15, 0x0f1b, 0x0f22, 0x0f28, 0x0f33, 0x0f3d, 0x0f45, 0x0f4c, 0x0f51, 0x0f57, 0x0f5e, 0x0f63, 0x0f69, 0x0f70, 0x0f76, 0x0f7d, 0x0f82, 0x0f89, 0x0f8d, 0x0f9e, 0x0fa4, 0x0fa9, 0x0fad, 0x0fb8, 0x0fbe, 0x0fc9, 0x0fd0, 0x0fd6, 0x0fda, 0x0fe1, 0x0fe5, 0x0fef, 0x0ffa, 0x1000, 0x1004, 0x1009, 0x100f, 0x1013, 0x101a, 0x101f, 0x1023, 0x1029, 0x102f, 0x1032, 0x1036, 0x1039, 0x103f, 0x1045, 0x1059, 0x1061, 0x1079, 0x107c, 0x1080, 0x1095, 0x10a1, 0x10b1, 0x10c3, 0x10cb, 0x10cf, 0x10da, 0x10de, 0x10ea, 0x10f2, 0x10f4, 0x1100, 0x1105, 0x1111, 0x1141, 0x1149, 0x114d, 0x1153, 0x1157, 0x115a, 0x116e, 0x1171, 0x1175, 0x117b, 0x117d, 0x1181, 0x1184, 0x118c, 0x1192, 0x1196, 0x119c, 0x11a2, 0x11a8, 0x11ab, 0xa76f, 0x11af, 0x11b3, 0x028d, 0x11bb, 0x120d, 0x130b, 0x1409, 0x148d, 0x1492, 0x1550, 0x1569, 0x156f, 0x1575, 0x157b, 0x1587, 0x1593, 0x002b, 0x159e, 0x15b6, 0x15ba, 0x15be, 0x15c2, 0x15c6, 0x15ca, 0x15de, 0x15e2, 0x1646, 0x165f, 0x1685, 0x168b, 0x1749, 0x174f, 0x1754, 0x1774, 0x1874, 0x187a, 0x190e, 0x19d0, 0x1a74, 0x1a7c, 0x1a9a, 0x1a9f, 0x1ab3, 0x1abd, 0x1ac3, 0x1ad7, 0x1adc, 0x1ae2, 0x1af0, 0x1b20, 0x1b2d, 0x1b35, 0x1b39, 0x1b4f, 0x1bc6, 0x1bd8, 0x1bda, 0x1bdc, 0x3164, 0x1c1d, 0x1c1f, 0x1c21, 0x1c23, 0x1c25, 0x1c27, 0x1c45, 0x1c53, 0x1c58, 0x1c61, 0x1c6a, 0x1c7c, 0x1c85, 0x1c8a, 0x1caa, 0x1cc5, 0x1cc7, 0x1cc9, 0x1ccb, 0x1ccd, 0x1ccf, 0x1cd1, 0x1cd3, 0x1cf3, 0x1cf5, 0x1cf7, 0x1cf9, 0x1cfb, 0x1d02, 0x1d04, 0x1d06, 0x1d08, 0x1d17, 0x1d19, 0x1d1b, 0x1d1d, 0x1d1f, 0x1d21, 0x1d23, 0x1d25, 0x1d27, 0x1d29, 0x1d2b, 0x1d2d, 0x1d2f, 0x1d31, 0x1d33, 0x1d37, 0x03f4, 0x1d39, 0x2207, 0x1d3b, 0x2202, 0x1d3d, 0x1d45, 0x03f4, 0x1d47, 0x2207, 0x1d49, 0x2202, 0x1d4b, 0x1d53, 0x03f4, 0x1d55, 0x2207, 0x1d57, 0x2202, 0x1d59, 0x1d61, 0x03f4, 0x1d63, 0x2207, 0x1d65, 0x2202, 0x1d67, 0x1d6f, 0x03f4, 0x1d71, 0x2207, 0x1d73, 0x2202, 0x1d75, 0x1d7f, 0x1d81, 0x1d83, 0x1d85, 0x1d87, 0x1d89, 0x1d8f, 0x1dac, 0x062d, 0x1db4, 0x1dc0, 0x062c, 0x1dd0, 0x1e40, 0x1e4c, 0x1e5f, 0x1e71, 0x1e84, 0x1e86, 0x1e8a, 0x1e90, 0x1e96, 0x1e98, 0x1e9c, 0x1e9e, 0x1ea6, 0x1ea9, 0x1eab, 0x1eb1, 0x1eb3, 0x30b5, 0x1eb9, 0x1f11, 0x1f27, 0x1f2b, 0x1f2d, 0x1f32, 0x1f7f, 0x1f90, 0x2091, 0x20a1, 0x20a7, 0x21a1, 0x22bf, }; static const uint8_t unicode_decomp_data[9165] = { 0x20, 0x88, 0x20, 0x84, 0x32, 0x33, 0x20, 0x81, 0x20, 0xa7, 0x31, 0x6f, 0x31, 0xd0, 0x34, 0x31, 0xd0, 0x32, 0x33, 0xd0, 0x34, 0x41, 0x80, 0x41, 0x81, 0x41, 0x82, 0x41, 0x83, 0x41, 0x88, 0x41, 0x8a, 0x00, 0x00, 0x43, 0xa7, 0x45, 0x80, 0x45, 0x81, 0x45, 0x82, 0x45, 0x88, 0x49, 0x80, 0x49, 0x81, 0x49, 0x82, 0x49, 0x88, 0x00, 0x00, 0x4e, 0x83, 0x4f, 0x80, 0x4f, 0x81, 0x4f, 0x82, 0x4f, 0x83, 0x4f, 0x88, 0x00, 0x00, 0x00, 0x00, 0x55, 0x80, 0x55, 0x81, 0x55, 0x82, 0x55, 0x88, 0x59, 0x81, 0x00, 0x00, 0x00, 0x00, 0x61, 0x80, 0x61, 0x81, 0x61, 0x82, 0x61, 0x83, 0x61, 0x88, 0x61, 0x8a, 0x00, 0x00, 0x63, 0xa7, 0x65, 0x80, 0x65, 0x81, 0x65, 0x82, 0x65, 0x88, 0x69, 0x80, 0x69, 0x81, 0x69, 0x82, 0x69, 0x88, 0x00, 0x00, 0x6e, 0x83, 0x6f, 0x80, 0x6f, 0x81, 0x6f, 0x82, 0x6f, 0x83, 0x6f, 0x88, 0x00, 0x00, 0x00, 0x00, 0x75, 0x80, 0x75, 0x81, 0x75, 0x82, 0x75, 0x88, 0x79, 0x81, 0x00, 0x00, 0x79, 0x88, 0x41, 0x84, 0x41, 0x86, 0x41, 0xa8, 0x43, 0x81, 0x43, 0x82, 0x43, 0x87, 0x43, 0x8c, 0x44, 0x8c, 0x45, 0x84, 0x45, 0x86, 0x45, 0x87, 0x45, 0xa8, 0x45, 0x8c, 0x47, 0x82, 0x47, 0x86, 0x47, 0x87, 0x47, 0xa7, 0x48, 0x82, 0x49, 0x83, 0x49, 0x84, 0x49, 0x86, 0x49, 0xa8, 0x49, 0x87, 0x49, 0x4a, 0x69, 0x6a, 0x4a, 0x82, 0x4b, 0xa7, 0x4c, 0x81, 0x4c, 0xa7, 0x4c, 0x8c, 0x4c, 0x00, 0x00, 0x6b, 0x20, 0x6b, 0x4e, 0x81, 0x4e, 0xa7, 0x4e, 0x8c, 0xbc, 0x02, 0x6e, 0x4f, 0x84, 0x4f, 0x86, 0x4f, 0x8b, 0x52, 0x81, 0x52, 0xa7, 0x52, 0x8c, 0x53, 0x81, 0x53, 0x82, 0x53, 0xa7, 0x53, 0x8c, 0x54, 0xa7, 0x54, 0x8c, 0x55, 0x83, 0x55, 0x84, 0x55, 0x86, 0x55, 0x8a, 0x55, 0x8b, 0x55, 0xa8, 0x57, 0x82, 0x59, 0x82, 0x59, 0x88, 0x5a, 0x81, 0x5a, 0x87, 0x5a, 0x8c, 0x4f, 0x9b, 0x55, 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0x0b, 0x98, 0x29, 0x98, 0xb6, 0x95, 0xe2, 0x98, 0x33, 0x4b, 0x29, 0x99, 0xa7, 0x99, 0xc2, 0x99, 0xfe, 0x99, 0xce, 0x4b, 0x30, 0x9b, 0x12, 0x9b, 0x40, 0x9c, 0xfd, 0x9c, 0xce, 0x4c, 0xed, 0x4c, 0x67, 0x9d, 0xce, 0xa0, 0xf8, 0x4c, 0x05, 0xa1, 0x0e, 0xa2, 0x91, 0xa2, 0xbb, 0x9e, 0x56, 0x4d, 0xf9, 0x9e, 0xfe, 0x9e, 0x05, 0x9f, 0x0f, 0x9f, 0x16, 0x9f, 0x3b, 0x9f, 0x00, 0xa6, 0x02, 0x88, 0xa0, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x28, 0x00, 0x08, 0xa0, 0x80, 0xa0, 0x80, 0x00, 0x80, 0x80, 0x00, 0x0a, 0x88, 0x80, 0x00, 0x80, 0x00, 0x20, 0x2a, 0x00, 0x80, }; static const uint16_t unicode_comp_table[945] = { 0x4a01, 0x49c0, 0x4a02, 0x0280, 0x0281, 0x0282, 0x0283, 0x02c0, 0x02c2, 0x0a00, 0x0284, 0x2442, 0x0285, 0x07c0, 0x0980, 0x0982, 0x2440, 0x2280, 0x02c4, 0x2282, 0x2284, 0x2286, 0x02c6, 0x02c8, 0x02ca, 0x02cc, 0x0287, 0x228a, 0x02ce, 0x228c, 0x2290, 0x2292, 0x228e, 0x0288, 0x0289, 0x028a, 0x2482, 0x0300, 0x0302, 0x0304, 0x028b, 0x2480, 0x0308, 0x0984, 0x0986, 0x2458, 0x0a02, 0x0306, 0x2298, 0x229a, 0x229e, 0x0900, 0x030a, 0x22a0, 0x030c, 0x030e, 0x0840, 0x0310, 0x0312, 0x22a2, 0x22a6, 0x09c0, 0x22a4, 0x22a8, 0x22aa, 0x028c, 0x028d, 0x028e, 0x0340, 0x0342, 0x0344, 0x0380, 0x028f, 0x248e, 0x07c2, 0x0988, 0x098a, 0x2490, 0x0346, 0x22ac, 0x0400, 0x22b0, 0x0842, 0x22b2, 0x0402, 0x22b4, 0x0440, 0x0444, 0x22b6, 0x0442, 0x22c2, 0x22c0, 0x22c4, 0x22c6, 0x22c8, 0x0940, 0x04c0, 0x0291, 0x22ca, 0x04c4, 0x22cc, 0x04c2, 0x22d0, 0x22ce, 0x0292, 0x0293, 0x0294, 0x0295, 0x0540, 0x0542, 0x0a08, 0x0296, 0x2494, 0x0544, 0x07c4, 0x098c, 0x098e, 0x06c0, 0x2492, 0x0844, 0x2308, 0x230a, 0x0580, 0x230c, 0x0584, 0x0990, 0x0992, 0x230e, 0x0582, 0x2312, 0x0586, 0x0588, 0x2314, 0x058c, 0x2316, 0x0998, 0x058a, 0x231e, 0x0590, 0x2320, 0x099a, 0x058e, 0x2324, 0x2322, 0x0299, 0x029a, 0x029b, 0x05c0, 0x05c2, 0x05c4, 0x029c, 0x24ac, 0x05c6, 0x05c8, 0x07c6, 0x0994, 0x0996, 0x0700, 0x24aa, 0x2326, 0x05ca, 0x232a, 0x2328, 0x2340, 0x2342, 0x2344, 0x2346, 0x05cc, 0x234a, 0x2348, 0x234c, 0x234e, 0x2350, 0x24b8, 0x029d, 0x05ce, 0x24be, 0x0a0c, 0x2352, 0x0600, 0x24bc, 0x24ba, 0x0640, 0x2354, 0x0642, 0x0644, 0x2356, 0x2358, 0x02a0, 0x02a1, 0x02a2, 0x02a3, 0x02c1, 0x02c3, 0x0a01, 0x02a4, 0x2443, 0x02a5, 0x07c1, 0x0981, 0x0983, 0x2441, 0x2281, 0x02c5, 0x2283, 0x2285, 0x2287, 0x02c7, 0x02c9, 0x02cb, 0x02cd, 0x02a7, 0x228b, 0x02cf, 0x228d, 0x2291, 0x2293, 0x228f, 0x02a8, 0x02a9, 0x02aa, 0x2483, 0x0301, 0x0303, 0x0305, 0x02ab, 0x2481, 0x0309, 0x0985, 0x0987, 0x2459, 0x0a03, 0x0307, 0x2299, 0x229b, 0x229f, 0x0901, 0x030b, 0x22a1, 0x030d, 0x030f, 0x0841, 0x0311, 0x0313, 0x22a3, 0x22a7, 0x09c1, 0x22a5, 0x22a9, 0x22ab, 0x2380, 0x02ac, 0x02ad, 0x02ae, 0x0341, 0x0343, 0x0345, 0x02af, 0x248f, 0x07c3, 0x0989, 0x098b, 0x2491, 0x0347, 0x22ad, 0x0401, 0x0884, 0x22b1, 0x0843, 0x22b3, 0x0403, 0x22b5, 0x0441, 0x0445, 0x22b7, 0x0443, 0x22c3, 0x22c1, 0x22c5, 0x22c7, 0x22c9, 0x0941, 0x04c1, 0x02b1, 0x22cb, 0x04c5, 0x22cd, 0x04c3, 0x22d1, 0x22cf, 0x02b2, 0x02b3, 0x02b4, 0x02b5, 0x0541, 0x0543, 0x0a09, 0x02b6, 0x2495, 0x0545, 0x07c5, 0x098d, 0x098f, 0x06c1, 0x2493, 0x0845, 0x2309, 0x230b, 0x0581, 0x230d, 0x0585, 0x0991, 0x0993, 0x230f, 0x0583, 0x2313, 0x0587, 0x0589, 0x2315, 0x058d, 0x2317, 0x0999, 0x058b, 0x231f, 0x2381, 0x0591, 0x2321, 0x099b, 0x058f, 0x2325, 0x2323, 0x02b9, 0x02ba, 0x02bb, 0x05c1, 0x05c3, 0x05c5, 0x02bc, 0x24ad, 0x05c7, 0x05c9, 0x07c7, 0x0995, 0x0997, 0x0701, 0x24ab, 0x2327, 0x05cb, 0x232b, 0x2329, 0x2341, 0x2343, 0x2345, 0x2347, 0x05cd, 0x234b, 0x2349, 0x2382, 0x234d, 0x234f, 0x2351, 0x24b9, 0x02bd, 0x05cf, 0x24bf, 0x0a0d, 0x2353, 0x02bf, 0x24bd, 0x2383, 0x24bb, 0x0641, 0x2355, 0x0643, 0x0645, 0x2357, 0x2359, 0x3101, 0x0c80, 0x2e00, 0x2446, 0x2444, 0x244a, 0x2448, 0x0800, 0x0942, 0x0944, 0x0804, 0x2288, 0x2486, 0x2484, 0x248a, 0x2488, 0x22ae, 0x2498, 0x2496, 0x249c, 0x249a, 0x2300, 0x0a06, 0x2302, 0x0a04, 0x0946, 0x07ce, 0x07ca, 0x07c8, 0x07cc, 0x2447, 0x2445, 0x244b, 0x2449, 0x0801, 0x0943, 0x0945, 0x0805, 0x2289, 0x2487, 0x2485, 0x248b, 0x2489, 0x22af, 0x2499, 0x2497, 0x249d, 0x249b, 0x2301, 0x0a07, 0x2303, 0x0a05, 0x0947, 0x07cf, 0x07cb, 0x07c9, 0x07cd, 0x2450, 0x244e, 0x2454, 0x2452, 0x2451, 0x244f, 0x2455, 0x2453, 0x2294, 0x2296, 0x2295, 0x2297, 0x2304, 0x2306, 0x2305, 0x2307, 0x2318, 0x2319, 0x231a, 0x231b, 0x232c, 0x232d, 0x232e, 0x232f, 0x2400, 0x24a2, 0x24a0, 0x24a6, 0x24a4, 0x24a8, 0x24a3, 0x24a1, 0x24a7, 0x24a5, 0x24a9, 0x24b0, 0x24ae, 0x24b4, 0x24b2, 0x24b6, 0x24b1, 0x24af, 0x24b5, 0x24b3, 0x24b7, 0x0882, 0x0880, 0x0881, 0x0802, 0x0803, 0x229c, 0x229d, 0x0a0a, 0x0a0b, 0x0883, 0x0b40, 0x2c8a, 0x0c81, 0x2c89, 0x2c88, 0x2540, 0x2541, 0x2d00, 0x2e07, 0x0d00, 0x2640, 0x2641, 0x2e80, 0x0d01, 0x26c8, 0x26c9, 0x2f00, 0x2f84, 0x0d02, 0x2f83, 0x2f82, 0x0d40, 0x26d8, 0x26d9, 0x3186, 0x0d04, 0x2740, 0x2741, 0x3100, 0x3086, 0x0d06, 0x3085, 0x3084, 0x0d41, 0x2840, 0x3200, 0x0d07, 0x284f, 0x2850, 0x3280, 0x2c84, 0x2e03, 0x2857, 0x0d42, 0x2c81, 0x2c80, 0x24c0, 0x24c1, 0x2c86, 0x2c83, 0x28c0, 0x0d43, 0x25c0, 0x25c1, 0x2940, 0x0d44, 0x26c0, 0x26c1, 0x2e05, 0x2e02, 0x29c0, 0x0d45, 0x2f05, 0x2f04, 0x0d80, 0x26d0, 0x26d1, 0x2f80, 0x2a40, 0x0d82, 0x26e0, 0x26e1, 0x3080, 0x3081, 0x2ac0, 0x0d83, 0x3004, 0x3003, 0x0d81, 0x27c0, 0x27c1, 0x3082, 0x2b40, 0x0d84, 0x2847, 0x2848, 0x3184, 0x3181, 0x2f06, 0x0d08, 0x2f81, 0x3005, 0x0d46, 0x3083, 0x3182, 0x0e00, 0x0e01, 0x0f40, 0x1180, 0x1182, 0x0f03, 0x0f00, 0x11c0, 0x0f01, 0x1140, 0x1202, 0x1204, 0x0f81, 0x1240, 0x0fc0, 0x1242, 0x0f80, 0x1244, 0x1284, 0x0f82, 0x1286, 0x1288, 0x128a, 0x12c0, 0x1282, 0x1181, 0x1183, 0x1043, 0x1040, 0x11c1, 0x1041, 0x1141, 0x1203, 0x1205, 0x10c1, 0x1241, 0x1000, 0x1243, 0x10c0, 0x1245, 0x1285, 0x10c2, 0x1287, 0x1289, 0x128b, 0x12c1, 0x1283, 0x1080, 0x1100, 0x1101, 0x1200, 0x1201, 0x1280, 0x1281, 0x1340, 0x1341, 0x1343, 0x1342, 0x1344, 0x13c2, 0x1400, 0x13c0, 0x1440, 0x1480, 0x14c0, 0x1540, 0x1541, 0x1740, 0x1700, 0x1741, 0x17c0, 0x1800, 0x1802, 0x1801, 0x1840, 0x1880, 0x1900, 0x18c0, 0x18c1, 0x1901, 0x1940, 0x1942, 0x1941, 0x1980, 0x19c0, 0x19c2, 0x19c1, 0x1c80, 0x1cc0, 0x1dc0, 0x1f80, 0x2000, 0x2002, 0x2004, 0x2006, 0x2008, 0x2040, 0x2080, 0x2082, 0x20c0, 0x20c1, 0x2100, 0x22b8, 0x22b9, 0x2310, 0x2311, 0x231c, 0x231d, 0x244c, 0x2456, 0x244d, 0x2457, 0x248c, 0x248d, 0x249e, 0x249f, 0x2500, 0x2502, 0x2504, 0x2bc0, 0x2501, 0x2503, 0x2505, 0x2bc1, 0x2bc2, 0x2bc3, 0x2bc4, 0x2bc5, 0x2bc6, 0x2bc7, 0x2580, 0x2582, 0x2584, 0x2bc8, 0x2581, 0x2583, 0x2585, 0x2bc9, 0x2bca, 0x2bcb, 0x2bcc, 0x2bcd, 0x2bce, 0x2bcf, 0x2600, 0x2602, 0x2601, 0x2603, 0x2680, 0x2682, 0x2681, 0x2683, 0x26c2, 0x26c4, 0x26c6, 0x2c00, 0x26c3, 0x26c5, 0x26c7, 0x2c01, 0x2c02, 0x2c03, 0x2c04, 0x2c05, 0x2c06, 0x2c07, 0x26ca, 0x26cc, 0x26ce, 0x2c08, 0x26cb, 0x26cd, 0x26cf, 0x2c09, 0x2c0a, 0x2c0b, 0x2c0c, 0x2c0d, 0x2c0e, 0x2c0f, 0x26d2, 0x26d4, 0x26d6, 0x26d3, 0x26d5, 0x26d7, 0x26da, 0x26dc, 0x26de, 0x26db, 0x26dd, 0x26df, 0x2700, 0x2702, 0x2701, 0x2703, 0x2780, 0x2782, 0x2781, 0x2783, 0x2800, 0x2802, 0x2804, 0x2801, 0x2803, 0x2805, 0x2842, 0x2844, 0x2846, 0x2849, 0x284b, 0x284d, 0x2c40, 0x284a, 0x284c, 0x284e, 0x2c41, 0x2c42, 0x2c43, 0x2c44, 0x2c45, 0x2c46, 0x2c47, 0x2851, 0x2853, 0x2855, 0x2c48, 0x2852, 0x2854, 0x2856, 0x2c49, 0x2c4a, 0x2c4b, 0x2c4c, 0x2c4d, 0x2c4e, 0x2c4f, 0x2c82, 0x2e01, 0x3180, 0x2c87, 0x2f01, 0x2f02, 0x2f03, 0x2e06, 0x3185, 0x3000, 0x3001, 0x3002, 0x4640, 0x4641, 0x4680, 0x46c0, 0x46c2, 0x46c1, 0x4700, 0x4740, 0x4780, 0x47c0, 0x47c2, 0x4900, 0x4940, 0x4980, 0x4982, 0x4a00, 0x49c2, 0x4a03, 0x4a04, 0x4a40, 0x4a41, 0x4a80, 0x4a81, 0x4ac0, 0x4ac1, 0x4bc0, 0x4bc1, 0x4b00, 0x4b01, 0x4b40, 0x4b41, 0x4bc2, 0x4bc3, 0x4b80, 0x4b81, 0x4b82, 0x4b83, 0x4c00, 0x4c01, 0x4c02, 0x4c03, 0x5600, 0x5440, 0x5442, 0x5444, 0x5446, 0x5448, 0x544a, 0x544c, 0x544e, 0x5450, 0x5452, 0x5454, 0x5456, 0x5480, 0x5482, 0x5484, 0x54c0, 0x54c1, 0x5500, 0x5501, 0x5540, 0x5541, 0x5580, 0x5581, 0x55c0, 0x55c1, 0x5680, 0x58c0, 0x5700, 0x5702, 0x5704, 0x5706, 0x5708, 0x570a, 0x570c, 0x570e, 0x5710, 0x5712, 0x5714, 0x5716, 0x5740, 0x5742, 0x5744, 0x5780, 0x5781, 0x57c0, 0x57c1, 0x5800, 0x5801, 0x5840, 0x5841, 0x5880, 0x5881, 0x5900, 0x5901, 0x5902, 0x5903, 0x5940, 0x8e80, 0x8e82, 0x8ec0, 0x8f00, 0x8f01, 0x8f40, 0x8f41, 0x8f81, 0x8f80, 0x8f83, 0x8fc0, 0x8fc1, 0x9000, }; typedef enum { UNICODE_GC_Cn, UNICODE_GC_Lu, UNICODE_GC_Ll, UNICODE_GC_Lt, UNICODE_GC_Lm, UNICODE_GC_Lo, UNICODE_GC_Mn, UNICODE_GC_Mc, UNICODE_GC_Me, UNICODE_GC_Nd, UNICODE_GC_Nl, UNICODE_GC_No, UNICODE_GC_Sm, UNICODE_GC_Sc, UNICODE_GC_Sk, UNICODE_GC_So, UNICODE_GC_Pc, UNICODE_GC_Pd, UNICODE_GC_Ps, UNICODE_GC_Pe, UNICODE_GC_Pi, UNICODE_GC_Pf, UNICODE_GC_Po, UNICODE_GC_Zs, UNICODE_GC_Zl, UNICODE_GC_Zp, UNICODE_GC_Cc, UNICODE_GC_Cf, UNICODE_GC_Cs, UNICODE_GC_Co, UNICODE_GC_LC, UNICODE_GC_L, UNICODE_GC_M, UNICODE_GC_N, UNICODE_GC_S, UNICODE_GC_P, UNICODE_GC_Z, UNICODE_GC_C, UNICODE_GC_COUNT, } UnicodeGCEnum; static const char unicode_gc_name_table[] = "Cn,Unassigned" "\0" "Lu,Uppercase_Letter" "\0" "Ll,Lowercase_Letter" "\0" "Lt,Titlecase_Letter" "\0" "Lm,Modifier_Letter" "\0" "Lo,Other_Letter" "\0" "Mn,Nonspacing_Mark" "\0" "Mc,Spacing_Mark" "\0" "Me,Enclosing_Mark" "\0" "Nd,Decimal_Number,digit" "\0" "Nl,Letter_Number" "\0" "No,Other_Number" "\0" "Sm,Math_Symbol" "\0" "Sc,Currency_Symbol" "\0" "Sk,Modifier_Symbol" "\0" "So,Other_Symbol" "\0" "Pc,Connector_Punctuation" "\0" "Pd,Dash_Punctuation" "\0" "Ps,Open_Punctuation" "\0" "Pe,Close_Punctuation" "\0" "Pi,Initial_Punctuation" "\0" "Pf,Final_Punctuation" "\0" "Po,Other_Punctuation" "\0" "Zs,Space_Separator" "\0" "Zl,Line_Separator" "\0" "Zp,Paragraph_Separator" "\0" "Cc,Control,cntrl" "\0" "Cf,Format" "\0" "Cs,Surrogate" "\0" "Co,Private_Use" "\0" "LC,Cased_Letter" "\0" "L,Letter" "\0" "M,Mark,Combining_Mark" "\0" "N,Number" "\0" "S,Symbol" "\0" "P,Punctuation,punct" "\0" "Z,Separator" "\0" "C,Other" "\0" ; static const uint8_t unicode_gc_table[3790] = { 0xfa, 0x18, 0x17, 0x56, 0x0d, 0x56, 0x12, 0x13, 0x16, 0x0c, 0x16, 0x11, 0x36, 0xe9, 0x02, 0x36, 0x4c, 0x36, 0xe1, 0x12, 0x12, 0x16, 0x13, 0x0e, 0x10, 0x0e, 0xe2, 0x12, 0x12, 0x0c, 0x13, 0x0c, 0xfa, 0x19, 0x17, 0x16, 0x6d, 0x0f, 0x16, 0x0e, 0x0f, 0x05, 0x14, 0x0c, 0x1b, 0x0f, 0x0e, 0x0f, 0x0c, 0x2b, 0x0e, 0x02, 0x36, 0x0e, 0x0b, 0x05, 0x15, 0x4b, 0x16, 0xe1, 0x0f, 0x0c, 0xc1, 0xe2, 0x10, 0x0c, 0xe2, 0x00, 0xff, 0x30, 0x02, 0xff, 0x08, 0x02, 0xff, 0x27, 0xbf, 0x22, 0x21, 0x02, 0x5f, 0x5f, 0x21, 0x22, 0x61, 0x02, 0x21, 0x02, 0x41, 0x42, 0x21, 0x02, 0x21, 0x02, 0x9f, 0x7f, 0x02, 0x5f, 0x5f, 0x21, 0x02, 0x5f, 0x3f, 0x02, 0x05, 0x3f, 0x22, 0x65, 0x01, 0x03, 0x02, 0x01, 0x03, 0x02, 0x01, 0x03, 0x02, 0xff, 0x08, 0x02, 0xff, 0x0a, 0x02, 0x01, 0x03, 0x02, 0x5f, 0x21, 0x02, 0xff, 0x32, 0xa2, 0x21, 0x02, 0x21, 0x22, 0x5f, 0x41, 0x02, 0xff, 0x00, 0xe2, 0x3c, 0x05, 0xe2, 0x13, 0xe4, 0x0a, 0x6e, 0xe4, 0x04, 0xee, 0x06, 0x84, 0xce, 0x04, 0x0e, 0x04, 0xee, 0x09, 0xe6, 0x68, 0x7f, 0x04, 0x0e, 0x3f, 0x20, 0x04, 0x42, 0x16, 0x01, 0x60, 0x2e, 0x01, 0x16, 0x41, 0x00, 0x01, 0x00, 0x21, 0x02, 0xe1, 0x09, 0x00, 0xe1, 0x01, 0xe2, 0x1b, 0x3f, 0x02, 0x41, 0x42, 0xff, 0x10, 0x62, 0x3f, 0x0c, 0x5f, 0x3f, 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0xef, 0x4a, 0x00, 0xef, 0x7f, 0xe0, 0x04, 0xef, 0x06, 0x20, 0x8f, 0x40, 0x4f, 0x80, 0xcf, 0xe0, 0x01, 0xef, 0x11, 0xc0, 0xcf, 0xe0, 0x01, 0x4f, 0xe0, 0x05, 0xcf, 0xe0, 0x21, 0xef, 0x80, 0x0b, 0x00, 0xef, 0x2f, 0xe0, 0x1d, 0xe9, 0x02, 0xe0, 0x83, 0x7e, 0xe5, 0xc0, 0x66, 0x56, 0xe0, 0x1a, 0xe5, 0x8f, 0xad, 0xe0, 0x03, 0xe5, 0x80, 0x56, 0x20, 0xe5, 0x95, 0xfa, 0xe0, 0x06, 0xe5, 0x9c, 0xa9, 0xe0, 0x8b, 0x97, 0xe5, 0x81, 0x96, 0xe0, 0x85, 0x5a, 0xe5, 0x92, 0xc3, 0xe0, 0xca, 0xac, 0x2e, 0x1b, 0xe0, 0x16, 0xfb, 0x58, 0xe0, 0x78, 0xe6, 0x80, 0x68, 0xe0, 0xc0, 0xbd, 0x88, 0xfd, 0xc0, 0xbf, 0x76, 0x20, 0xfd, 0xc0, 0xbf, 0x76, 0x20, }; typedef enum { UNICODE_SCRIPT_Unknown, UNICODE_SCRIPT_Adlam, UNICODE_SCRIPT_Ahom, UNICODE_SCRIPT_Anatolian_Hieroglyphs, UNICODE_SCRIPT_Arabic, UNICODE_SCRIPT_Armenian, UNICODE_SCRIPT_Avestan, UNICODE_SCRIPT_Balinese, UNICODE_SCRIPT_Bamum, UNICODE_SCRIPT_Bassa_Vah, UNICODE_SCRIPT_Batak, UNICODE_SCRIPT_Bengali, UNICODE_SCRIPT_Bhaiksuki, UNICODE_SCRIPT_Bopomofo, UNICODE_SCRIPT_Brahmi, UNICODE_SCRIPT_Braille, UNICODE_SCRIPT_Buginese, UNICODE_SCRIPT_Buhid, UNICODE_SCRIPT_Canadian_Aboriginal, UNICODE_SCRIPT_Carian, UNICODE_SCRIPT_Caucasian_Albanian, UNICODE_SCRIPT_Chakma, UNICODE_SCRIPT_Cham, UNICODE_SCRIPT_Cherokee, UNICODE_SCRIPT_Chorasmian, UNICODE_SCRIPT_Common, UNICODE_SCRIPT_Coptic, UNICODE_SCRIPT_Cuneiform, UNICODE_SCRIPT_Cypriot, UNICODE_SCRIPT_Cyrillic, UNICODE_SCRIPT_Deseret, UNICODE_SCRIPT_Devanagari, UNICODE_SCRIPT_Dives_Akuru, UNICODE_SCRIPT_Dogra, UNICODE_SCRIPT_Duployan, UNICODE_SCRIPT_Egyptian_Hieroglyphs, UNICODE_SCRIPT_Elbasan, UNICODE_SCRIPT_Elymaic, UNICODE_SCRIPT_Ethiopic, UNICODE_SCRIPT_Georgian, UNICODE_SCRIPT_Glagolitic, UNICODE_SCRIPT_Gothic, UNICODE_SCRIPT_Grantha, UNICODE_SCRIPT_Greek, UNICODE_SCRIPT_Gujarati, UNICODE_SCRIPT_Gunjala_Gondi, UNICODE_SCRIPT_Gurmukhi, UNICODE_SCRIPT_Han, UNICODE_SCRIPT_Hangul, UNICODE_SCRIPT_Hanifi_Rohingya, UNICODE_SCRIPT_Hanunoo, UNICODE_SCRIPT_Hatran, UNICODE_SCRIPT_Hebrew, UNICODE_SCRIPT_Hiragana, UNICODE_SCRIPT_Imperial_Aramaic, UNICODE_SCRIPT_Inherited, UNICODE_SCRIPT_Inscriptional_Pahlavi, UNICODE_SCRIPT_Inscriptional_Parthian, UNICODE_SCRIPT_Javanese, UNICODE_SCRIPT_Kaithi, UNICODE_SCRIPT_Kannada, UNICODE_SCRIPT_Katakana, UNICODE_SCRIPT_Kayah_Li, UNICODE_SCRIPT_Kharoshthi, UNICODE_SCRIPT_Khmer, UNICODE_SCRIPT_Khojki, UNICODE_SCRIPT_Khitan_Small_Script, UNICODE_SCRIPT_Khudawadi, UNICODE_SCRIPT_Lao, UNICODE_SCRIPT_Latin, UNICODE_SCRIPT_Lepcha, UNICODE_SCRIPT_Limbu, UNICODE_SCRIPT_Linear_A, UNICODE_SCRIPT_Linear_B, UNICODE_SCRIPT_Lisu, UNICODE_SCRIPT_Lycian, UNICODE_SCRIPT_Lydian, UNICODE_SCRIPT_Makasar, UNICODE_SCRIPT_Mahajani, UNICODE_SCRIPT_Malayalam, UNICODE_SCRIPT_Mandaic, UNICODE_SCRIPT_Manichaean, UNICODE_SCRIPT_Marchen, UNICODE_SCRIPT_Masaram_Gondi, UNICODE_SCRIPT_Medefaidrin, UNICODE_SCRIPT_Meetei_Mayek, UNICODE_SCRIPT_Mende_Kikakui, UNICODE_SCRIPT_Meroitic_Cursive, UNICODE_SCRIPT_Meroitic_Hieroglyphs, UNICODE_SCRIPT_Miao, UNICODE_SCRIPT_Modi, UNICODE_SCRIPT_Mongolian, UNICODE_SCRIPT_Mro, UNICODE_SCRIPT_Multani, UNICODE_SCRIPT_Myanmar, UNICODE_SCRIPT_Nabataean, UNICODE_SCRIPT_Nandinagari, UNICODE_SCRIPT_New_Tai_Lue, UNICODE_SCRIPT_Newa, UNICODE_SCRIPT_Nko, UNICODE_SCRIPT_Nushu, UNICODE_SCRIPT_Nyiakeng_Puachue_Hmong, UNICODE_SCRIPT_Ogham, UNICODE_SCRIPT_Ol_Chiki, UNICODE_SCRIPT_Old_Hungarian, UNICODE_SCRIPT_Old_Italic, UNICODE_SCRIPT_Old_North_Arabian, UNICODE_SCRIPT_Old_Permic, UNICODE_SCRIPT_Old_Persian, UNICODE_SCRIPT_Old_Sogdian, UNICODE_SCRIPT_Old_South_Arabian, UNICODE_SCRIPT_Old_Turkic, UNICODE_SCRIPT_Oriya, UNICODE_SCRIPT_Osage, UNICODE_SCRIPT_Osmanya, UNICODE_SCRIPT_Pahawh_Hmong, UNICODE_SCRIPT_Palmyrene, UNICODE_SCRIPT_Pau_Cin_Hau, UNICODE_SCRIPT_Phags_Pa, UNICODE_SCRIPT_Phoenician, UNICODE_SCRIPT_Psalter_Pahlavi, UNICODE_SCRIPT_Rejang, UNICODE_SCRIPT_Runic, UNICODE_SCRIPT_Samaritan, UNICODE_SCRIPT_Saurashtra, UNICODE_SCRIPT_Sharada, UNICODE_SCRIPT_Shavian, UNICODE_SCRIPT_Siddham, UNICODE_SCRIPT_SignWriting, UNICODE_SCRIPT_Sinhala, UNICODE_SCRIPT_Sogdian, UNICODE_SCRIPT_Sora_Sompeng, UNICODE_SCRIPT_Soyombo, UNICODE_SCRIPT_Sundanese, UNICODE_SCRIPT_Syloti_Nagri, UNICODE_SCRIPT_Syriac, UNICODE_SCRIPT_Tagalog, UNICODE_SCRIPT_Tagbanwa, UNICODE_SCRIPT_Tai_Le, UNICODE_SCRIPT_Tai_Tham, UNICODE_SCRIPT_Tai_Viet, UNICODE_SCRIPT_Takri, UNICODE_SCRIPT_Tamil, UNICODE_SCRIPT_Tangut, UNICODE_SCRIPT_Telugu, UNICODE_SCRIPT_Thaana, UNICODE_SCRIPT_Thai, UNICODE_SCRIPT_Tibetan, UNICODE_SCRIPT_Tifinagh, UNICODE_SCRIPT_Tirhuta, UNICODE_SCRIPT_Ugaritic, UNICODE_SCRIPT_Vai, UNICODE_SCRIPT_Wancho, UNICODE_SCRIPT_Warang_Citi, UNICODE_SCRIPT_Yezidi, UNICODE_SCRIPT_Yi, UNICODE_SCRIPT_Zanabazar_Square, UNICODE_SCRIPT_COUNT, } UnicodeScriptEnum; static const char unicode_script_name_table[] = "Adlam,Adlm" "\0" "Ahom,Ahom" "\0" "Anatolian_Hieroglyphs,Hluw" "\0" "Arabic,Arab" "\0" "Armenian,Armn" "\0" "Avestan,Avst" "\0" "Balinese,Bali" "\0" "Bamum,Bamu" "\0" "Bassa_Vah,Bass" "\0" "Batak,Batk" "\0" "Bengali,Beng" "\0" "Bhaiksuki,Bhks" "\0" "Bopomofo,Bopo" "\0" "Brahmi,Brah" "\0" "Braille,Brai" "\0" "Buginese,Bugi" "\0" "Buhid,Buhd" "\0" "Canadian_Aboriginal,Cans" "\0" "Carian,Cari" "\0" "Caucasian_Albanian,Aghb" "\0" "Chakma,Cakm" "\0" "Cham,Cham" "\0" "Cherokee,Cher" "\0" "Chorasmian,Chrs" "\0" "Common,Zyyy" "\0" "Coptic,Copt,Qaac" "\0" "Cuneiform,Xsux" "\0" "Cypriot,Cprt" "\0" "Cyrillic,Cyrl" "\0" "Deseret,Dsrt" "\0" "Devanagari,Deva" "\0" "Dives_Akuru,Diak" "\0" "Dogra,Dogr" "\0" "Duployan,Dupl" "\0" "Egyptian_Hieroglyphs,Egyp" "\0" "Elbasan,Elba" "\0" "Elymaic,Elym" "\0" "Ethiopic,Ethi" "\0" "Georgian,Geor" "\0" "Glagolitic,Glag" "\0" "Gothic,Goth" "\0" "Grantha,Gran" "\0" "Greek,Grek" "\0" "Gujarati,Gujr" "\0" "Gunjala_Gondi,Gong" "\0" "Gurmukhi,Guru" "\0" "Han,Hani" "\0" "Hangul,Hang" "\0" "Hanifi_Rohingya,Rohg" "\0" "Hanunoo,Hano" "\0" "Hatran,Hatr" "\0" "Hebrew,Hebr" "\0" "Hiragana,Hira" "\0" "Imperial_Aramaic,Armi" "\0" "Inherited,Zinh,Qaai" "\0" "Inscriptional_Pahlavi,Phli" "\0" "Inscriptional_Parthian,Prti" "\0" "Javanese,Java" "\0" "Kaithi,Kthi" "\0" "Kannada,Knda" "\0" "Katakana,Kana" "\0" "Kayah_Li,Kali" "\0" "Kharoshthi,Khar" "\0" "Khmer,Khmr" "\0" "Khojki,Khoj" "\0" "Khitan_Small_Script,Kits" "\0" "Khudawadi,Sind" "\0" "Lao,Laoo" "\0" "Latin,Latn" "\0" "Lepcha,Lepc" "\0" "Limbu,Limb" "\0" "Linear_A,Lina" "\0" "Linear_B,Linb" "\0" "Lisu,Lisu" "\0" "Lycian,Lyci" "\0" "Lydian,Lydi" "\0" "Makasar,Maka" "\0" "Mahajani,Mahj" "\0" "Malayalam,Mlym" "\0" "Mandaic,Mand" "\0" "Manichaean,Mani" "\0" "Marchen,Marc" "\0" "Masaram_Gondi,Gonm" "\0" "Medefaidrin,Medf" "\0" "Meetei_Mayek,Mtei" "\0" "Mende_Kikakui,Mend" "\0" "Meroitic_Cursive,Merc" "\0" "Meroitic_Hieroglyphs,Mero" "\0" "Miao,Plrd" "\0" "Modi,Modi" "\0" "Mongolian,Mong" "\0" "Mro,Mroo" "\0" "Multani,Mult" "\0" "Myanmar,Mymr" "\0" "Nabataean,Nbat" "\0" "Nandinagari,Nand" "\0" "New_Tai_Lue,Talu" "\0" "Newa,Newa" "\0" "Nko,Nkoo" "\0" "Nushu,Nshu" "\0" "Nyiakeng_Puachue_Hmong,Hmnp" "\0" "Ogham,Ogam" "\0" "Ol_Chiki,Olck" "\0" "Old_Hungarian,Hung" "\0" "Old_Italic,Ital" "\0" "Old_North_Arabian,Narb" "\0" "Old_Permic,Perm" "\0" "Old_Persian,Xpeo" "\0" "Old_Sogdian,Sogo" "\0" "Old_South_Arabian,Sarb" "\0" "Old_Turkic,Orkh" "\0" "Oriya,Orya" "\0" "Osage,Osge" "\0" "Osmanya,Osma" "\0" "Pahawh_Hmong,Hmng" "\0" "Palmyrene,Palm" "\0" "Pau_Cin_Hau,Pauc" "\0" "Phags_Pa,Phag" "\0" "Phoenician,Phnx" "\0" "Psalter_Pahlavi,Phlp" "\0" "Rejang,Rjng" "\0" "Runic,Runr" "\0" "Samaritan,Samr" "\0" "Saurashtra,Saur" "\0" "Sharada,Shrd" "\0" "Shavian,Shaw" "\0" "Siddham,Sidd" "\0" "SignWriting,Sgnw" "\0" "Sinhala,Sinh" "\0" "Sogdian,Sogd" "\0" "Sora_Sompeng,Sora" "\0" "Soyombo,Soyo" "\0" "Sundanese,Sund" "\0" "Syloti_Nagri,Sylo" "\0" "Syriac,Syrc" "\0" "Tagalog,Tglg" "\0" "Tagbanwa,Tagb" "\0" "Tai_Le,Tale" "\0" "Tai_Tham,Lana" "\0" "Tai_Viet,Tavt" "\0" "Takri,Takr" "\0" "Tamil,Taml" "\0" "Tangut,Tang" "\0" "Telugu,Telu" "\0" "Thaana,Thaa" "\0" "Thai,Thai" "\0" "Tibetan,Tibt" "\0" "Tifinagh,Tfng" "\0" "Tirhuta,Tirh" "\0" "Ugaritic,Ugar" "\0" "Vai,Vaii" "\0" "Wancho,Wcho" "\0" "Warang_Citi,Wara" "\0" "Yezidi,Yezi" "\0" "Yi,Yiii" "\0" "Zanabazar_Square,Zanb" "\0" ; static const uint8_t unicode_script_table[2609] = { 0xc0, 0x19, 0x99, 0x45, 0x85, 0x19, 0x99, 0x45, 0xae, 0x19, 0x80, 0x45, 0x8e, 0x19, 0x80, 0x45, 0x84, 0x19, 0x96, 0x45, 0x80, 0x19, 0x9e, 0x45, 0x80, 0x19, 0xe1, 0x60, 0x45, 0xa6, 0x19, 0x84, 0x45, 0x84, 0x19, 0x81, 0x0d, 0x93, 0x19, 0xe0, 0x0f, 0x37, 0x83, 0x2b, 0x80, 0x19, 0x82, 0x2b, 0x01, 0x83, 0x2b, 0x80, 0x19, 0x80, 0x2b, 0x03, 0x80, 0x2b, 0x80, 0x19, 0x80, 0x2b, 0x80, 0x19, 0x82, 0x2b, 0x00, 0x80, 0x2b, 0x00, 0x93, 0x2b, 0x00, 0xbe, 0x2b, 0x8d, 0x1a, 0x8f, 0x2b, 0xe0, 0x24, 0x1d, 0x81, 0x37, 0xe0, 0x48, 0x1d, 0x00, 0xa5, 0x05, 0x01, 0xb1, 0x05, 0x01, 0x82, 0x05, 0x00, 0xb6, 0x34, 0x07, 0x9a, 0x34, 0x03, 0x85, 0x34, 0x0a, 0x84, 0x04, 0x80, 0x19, 0x85, 0x04, 0x80, 0x19, 0x8d, 0x04, 0x80, 0x19, 0x80, 0x04, 0x00, 0x80, 0x04, 0x80, 0x19, 0x9f, 0x04, 0x80, 0x19, 0x89, 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0x3d, 0xe0, 0xbd, 0x35, 0x30, 0x82, 0x35, 0x10, 0x83, 0x3d, 0x07, 0xe1, 0x2b, 0x64, 0x68, 0xa3, 0xe0, 0x0a, 0x22, 0x04, 0x8c, 0x22, 0x02, 0x88, 0x22, 0x06, 0x89, 0x22, 0x01, 0x83, 0x22, 0x83, 0x19, 0x70, 0x02, 0xfb, 0xe0, 0x95, 0x19, 0x09, 0xa6, 0x19, 0x01, 0xbd, 0x19, 0x82, 0x37, 0x90, 0x19, 0x87, 0x37, 0x81, 0x19, 0x86, 0x37, 0x9d, 0x19, 0x83, 0x37, 0xba, 0x19, 0x16, 0xc5, 0x2b, 0x60, 0x39, 0x93, 0x19, 0x0b, 0xd6, 0x19, 0x08, 0x98, 0x19, 0x60, 0x26, 0xd4, 0x19, 0x00, 0xc6, 0x19, 0x00, 0x81, 0x19, 0x01, 0x80, 0x19, 0x01, 0x81, 0x19, 0x01, 0x83, 0x19, 0x00, 0x8b, 0x19, 0x00, 0x80, 0x19, 0x00, 0x86, 0x19, 0x00, 0xc0, 0x19, 0x00, 0x83, 0x19, 0x01, 0x87, 0x19, 0x00, 0x86, 0x19, 0x00, 0x9b, 0x19, 0x00, 0x83, 0x19, 0x00, 0x84, 0x19, 0x00, 0x80, 0x19, 0x02, 0x86, 0x19, 0x00, 0xe0, 0xf3, 0x19, 0x01, 0xe0, 0xc3, 0x19, 0x01, 0xb1, 0x19, 0xe2, 0x2b, 0x80, 0x0e, 0x84, 0x80, 0x00, 0x8e, 0x80, 0x64, 0xef, 0x86, 0x28, 0x00, 0x90, 0x28, 0x01, 0x86, 0x28, 0x00, 0x81, 0x28, 0x00, 0x84, 0x28, 0x60, 0x74, 0xac, 0x65, 0x02, 0x8d, 0x65, 0x01, 0x89, 0x65, 0x03, 0x81, 0x65, 0x61, 0x0f, 0xb9, 0x98, 0x04, 0x80, 0x98, 0x64, 0x9f, 0xe0, 0x64, 0x56, 0x01, 0x8f, 0x56, 0x28, 0xcb, 0x01, 0x03, 0x89, 0x01, 0x03, 0x81, 0x01, 0x62, 0xb0, 0xc3, 0x19, 0x4b, 0xbc, 0x19, 0x60, 0x61, 0x83, 0x04, 0x00, 0x9a, 0x04, 0x00, 0x81, 0x04, 0x00, 0x80, 0x04, 0x01, 0x80, 0x04, 0x00, 0x89, 0x04, 0x00, 0x83, 0x04, 0x00, 0x80, 0x04, 0x00, 0x80, 0x04, 0x05, 0x80, 0x04, 0x03, 0x80, 0x04, 0x00, 0x80, 0x04, 0x00, 0x80, 0x04, 0x00, 0x82, 0x04, 0x00, 0x81, 0x04, 0x00, 0x80, 0x04, 0x01, 0x80, 0x04, 0x00, 0x80, 0x04, 0x00, 0x80, 0x04, 0x00, 0x80, 0x04, 0x00, 0x80, 0x04, 0x00, 0x81, 0x04, 0x00, 0x80, 0x04, 0x01, 0x83, 0x04, 0x00, 0x86, 0x04, 0x00, 0x83, 0x04, 0x00, 0x83, 0x04, 0x00, 0x80, 0x04, 0x00, 0x89, 0x04, 0x00, 0x90, 0x04, 0x04, 0x82, 0x04, 0x00, 0x84, 0x04, 0x00, 0x90, 0x04, 0x33, 0x81, 0x04, 0x60, 0xad, 0xab, 0x19, 0x03, 0xe0, 0x03, 0x19, 0x0b, 0x8e, 0x19, 0x01, 0x8e, 0x19, 0x00, 0x8e, 0x19, 0x00, 0xa4, 0x19, 0x09, 0xe0, 0x4d, 0x19, 0x37, 0x99, 0x19, 0x80, 0x35, 0x81, 0x19, 0x0c, 0xab, 0x19, 0x03, 0x88, 0x19, 0x06, 0x81, 0x19, 0x0d, 0x85, 0x19, 0x60, 0x39, 0xe3, 0x77, 0x19, 0x07, 0x8c, 0x19, 0x02, 0x8c, 0x19, 0x02, 0xe0, 0x13, 0x19, 0x0b, 0xd8, 0x19, 0x06, 0x8b, 0x19, 0x13, 0x8b, 0x19, 0x03, 0xb7, 0x19, 0x07, 0x89, 0x19, 0x05, 0xa7, 0x19, 0x07, 0x9d, 0x19, 0x01, 0x81, 0x19, 0x4d, 0xe0, 0x18, 0x19, 0x00, 0xd1, 0x19, 0x00, 0xe0, 0x26, 0x19, 0x0b, 0x8d, 0x19, 0x01, 0x84, 0x19, 0x02, 0x82, 0x19, 0x04, 0x86, 0x19, 0x08, 0x98, 0x19, 0x06, 0x86, 0x19, 0x08, 0x82, 0x19, 0x0c, 0x86, 0x19, 0x28, 0xe0, 0x32, 0x19, 0x00, 0xb6, 0x19, 0x24, 0x89, 0x19, 0x63, 0xa5, 0xf0, 0x96, 0x7d, 0x2f, 0x21, 0xef, 0xd4, 0x2f, 0x0a, 0xe0, 0x7d, 0x2f, 0x01, 0xf0, 0x06, 0x21, 0x2f, 0x0d, 0xf0, 0x0c, 0xd0, 0x2f, 0x6b, 0xbe, 0xe1, 0xbd, 0x2f, 0x65, 0x81, 0xf0, 0x02, 0xea, 0x2f, 0x7a, 0xdc, 0x55, 0x80, 0x19, 0x1d, 0xdf, 0x19, 0x60, 0x1f, 0xe0, 0x8f, 0x37, }; static const uint8_t unicode_script_ext_table[799] = { 0x82, 0xc1, 0x00, 0x00, 0x01, 0x2b, 0x01, 0x00, 0x00, 0x01, 0x2b, 0x1c, 0x00, 0x0c, 0x01, 0x45, 0x80, 0x92, 0x00, 0x00, 0x02, 0x1d, 0x6b, 0x00, 0x02, 0x1d, 0x28, 0x01, 0x02, 0x1d, 0x45, 0x00, 0x02, 0x1d, 0x28, 0x81, 0x03, 0x00, 0x00, 0x05, 0x04, 0x31, 0x87, 0x91, 0x9a, 0x0d, 0x00, 0x00, 0x05, 0x04, 0x31, 0x87, 0x91, 0x9a, 0x00, 0x03, 0x04, 0x87, 0x91, 0x01, 0x00, 0x00, 0x05, 0x04, 0x31, 0x87, 0x91, 0x9a, 0x1f, 0x00, 0x00, 0x08, 0x01, 0x04, 0x50, 0x51, 0x78, 0x31, 0x82, 0x87, 0x09, 0x00, 0x0a, 0x02, 0x04, 0x87, 0x09, 0x00, 0x09, 0x03, 0x04, 0x91, 0x9a, 0x05, 0x00, 0x00, 0x02, 0x04, 0x87, 0x62, 0x00, 0x00, 0x02, 0x04, 0x31, 0x81, 0xfb, 0x00, 0x00, 0x0d, 0x0b, 0x1f, 0x2a, 0x2c, 0x2e, 0x3c, 0x45, 0x4f, 0x70, 0x7d, 0x8e, 0x90, 0x95, 0x00, 0x0c, 0x0b, 0x1f, 0x2a, 0x2c, 0x2e, 0x3c, 0x45, 0x4f, 0x70, 0x8e, 0x90, 0x95, 0x10, 0x00, 0x00, 0x14, 0x0b, 0x1f, 0x21, 0x2d, 0x53, 0x2a, 0x2c, 0x2e, 0x3c, 0x4e, 0x4f, 0x60, 0x70, 0x43, 0x81, 0x86, 0x8d, 0x8e, 0x90, 0x95, 0x00, 0x15, 0x0b, 0x1f, 0x21, 0x2d, 0x53, 0x2a, 0x2c, 0x2e, 0x3c, 0x47, 0x4e, 0x4f, 0x60, 0x70, 0x43, 0x81, 0x86, 0x8d, 0x8e, 0x90, 0x95, 0x09, 0x04, 0x1f, 0x21, 0x3b, 0x4e, 0x75, 0x00, 0x09, 0x03, 0x0b, 0x15, 0x86, 0x75, 0x00, 0x09, 0x02, 0x2e, 0x5d, 0x75, 0x00, 0x09, 0x02, 0x2c, 0x41, 0x80, 0x75, 0x00, 0x0d, 0x02, 0x2a, 0x8e, 0x80, 0x71, 0x00, 0x09, 0x02, 0x3c, 0x60, 0x82, 0xcf, 0x00, 0x09, 0x03, 0x15, 0x5e, 0x8a, 0x80, 0x30, 0x00, 0x00, 0x02, 0x27, 0x45, 0x85, 0xb8, 0x00, 0x01, 0x04, 0x11, 0x32, 0x89, 0x88, 0x80, 0x4a, 0x00, 0x01, 0x02, 0x5b, 0x76, 0x00, 0x00, 0x00, 0x02, 0x5b, 0x76, 0x84, 0x49, 0x00, 0x00, 0x04, 0x0b, 0x1f, 0x2a, 0x3c, 0x00, 0x01, 0x1f, 0x00, 0x04, 0x0b, 0x1f, 0x2a, 0x3c, 0x00, 0x02, 0x1f, 0x2a, 0x00, 0x01, 0x1f, 0x01, 0x02, 0x0b, 0x1f, 0x00, 0x02, 0x1f, 0x7d, 0x00, 0x02, 0x0b, 0x1f, 0x00, 0x02, 0x1f, 0x7d, 0x00, 0x06, 0x1f, 0x3c, 0x4f, 0x70, 0x8e, 0x90, 0x00, 0x01, 0x1f, 0x01, 0x02, 0x1f, 0x7d, 0x01, 0x01, 0x1f, 0x00, 0x02, 0x1f, 0x7d, 0x00, 0x02, 0x0b, 0x1f, 0x06, 0x01, 0x1f, 0x00, 0x02, 0x1f, 0x60, 0x00, 0x02, 0x0b, 0x1f, 0x01, 0x01, 0x1f, 0x00, 0x02, 0x0b, 0x1f, 0x03, 0x01, 0x1f, 0x00, 0x08, 0x0b, 0x1f, 0x2a, 0x3c, 0x60, 0x70, 0x90, 0x95, 0x00, 0x02, 0x1f, 0x2a, 0x00, 0x03, 0x1f, 0x2a, 0x3c, 0x01, 0x02, 0x0b, 0x1f, 0x00, 0x01, 0x0b, 0x01, 0x02, 0x1f, 0x2a, 0x00, 0x01, 0x60, 0x80, 0x44, 0x00, 0x01, 0x01, 0x2b, 0x35, 0x00, 0x00, 0x02, 0x1d, 0x87, 0x81, 0xb5, 0x00, 0x00, 0x02, 0x45, 0x5b, 0x80, 0x3f, 0x00, 0x00, 0x03, 0x1f, 0x2a, 0x45, 0x8c, 0xd1, 0x00, 0x00, 0x02, 0x1d, 0x28, 0x81, 0x3c, 0x00, 0x01, 0x06, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x9b, 0x00, 0x05, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x01, 0x00, 0x00, 0x01, 0x2f, 0x00, 0x00, 0x09, 0x06, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x9b, 0x00, 0x00, 0x00, 0x05, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x07, 0x06, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x9b, 0x03, 0x05, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x09, 0x00, 0x03, 0x02, 0x0d, 0x2f, 0x01, 0x00, 0x00, 0x05, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x04, 0x02, 0x35, 0x3d, 0x00, 0x00, 0x00, 0x05, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x03, 0x00, 0x01, 0x03, 0x2f, 0x35, 0x3d, 0x01, 0x01, 0x2f, 0x58, 0x00, 0x03, 0x02, 0x35, 0x3d, 0x02, 0x00, 0x00, 0x02, 0x35, 0x3d, 0x59, 0x00, 0x00, 0x06, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x9b, 0x00, 0x02, 0x35, 0x3d, 0x80, 0x12, 0x00, 0x0f, 0x01, 0x2f, 0x1f, 0x00, 0x23, 0x01, 0x2f, 0x3b, 0x00, 0x27, 0x01, 0x2f, 0x37, 0x00, 0x30, 0x01, 0x2f, 0x0e, 0x00, 0x0b, 0x01, 0x2f, 0x32, 0x00, 0x00, 0x01, 0x2f, 0x57, 0x00, 0x18, 0x01, 0x2f, 0x09, 0x00, 0x04, 0x01, 0x2f, 0x5f, 0x00, 0x1e, 0x01, 0x2f, 0xc0, 0x31, 0xef, 0x00, 0x00, 0x02, 0x1d, 0x28, 0x80, 0x0f, 0x00, 0x07, 0x02, 0x2f, 0x45, 0x80, 0xa7, 0x00, 0x02, 0x0e, 0x1f, 0x21, 0x2c, 0x2e, 0x41, 0x3c, 0x3b, 0x4e, 0x4f, 0x5a, 0x60, 0x43, 0x8d, 0x95, 0x02, 0x0d, 0x1f, 0x21, 0x2c, 0x2e, 0x41, 0x3c, 0x3b, 0x4e, 0x5a, 0x60, 0x43, 0x8d, 0x95, 0x03, 0x0b, 0x1f, 0x21, 0x2c, 0x2e, 0x41, 0x3b, 0x4e, 0x5a, 0x43, 0x8d, 0x95, 0x80, 0x36, 0x00, 0x00, 0x02, 0x0b, 0x1f, 0x00, 0x00, 0x00, 0x02, 0x1f, 0x8e, 0x39, 0x00, 0x00, 0x03, 0x3e, 0x45, 0x5e, 0x80, 0x1f, 0x00, 0x00, 0x02, 0x10, 0x3a, 0xc0, 0x13, 0xa1, 0x00, 0x00, 0x02, 0x04, 0x91, 0x09, 0x00, 0x00, 0x02, 0x04, 0x91, 0x46, 0x00, 0x01, 0x05, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x80, 0x99, 0x00, 0x04, 0x06, 0x0d, 0x30, 0x2f, 0x35, 0x3d, 0x9b, 0x09, 0x00, 0x00, 0x02, 0x35, 0x3d, 0x2c, 0x00, 0x01, 0x02, 0x35, 0x3d, 0x80, 0xdf, 0x00, 0x02, 0x02, 0x1c, 0x49, 0x03, 0x00, 0x2c, 0x03, 0x1c, 0x48, 0x49, 0x02, 0x00, 0x08, 0x02, 0x1c, 0x49, 0x81, 0x1f, 0x00, 0x1b, 0x02, 0x04, 0x1a, 0x8f, 0x84, 0x00, 0x00, 0x02, 0x2a, 0x8e, 0x00, 0x00, 0x00, 0x02, 0x2a, 0x8e, 0x36, 0x00, 0x01, 0x02, 0x2a, 0x8e, 0x8c, 0x12, 0x00, 0x01, 0x02, 0x2a, 0x8e, 0x00, 0x00, 0x00, 0x02, 0x2a, 0x8e, 0xc0, 0x5c, 0x4b, 0x00, 0x03, 0x01, 0x22, 0x96, 0x3b, 0x00, 0x11, 0x01, 0x2f, 0x9e, 0x5d, 0x00, 0x01, 0x01, 0x2f, 0xce, 0xcd, 0x2d, 0x00, }; static const uint8_t unicode_prop_Hyphen_table[28] = { 0xac, 0x80, 0xfe, 0x80, 0x44, 0xdb, 0x80, 0x52, 0x7a, 0x80, 0x48, 0x08, 0x81, 0x4e, 0x04, 0x80, 0x42, 0xe2, 0x80, 0x60, 0xcd, 0x66, 0x80, 0x40, 0xa8, 0x80, 0xd6, 0x80, }; static const uint8_t unicode_prop_Other_Math_table[200] = { 0xdd, 0x80, 0x43, 0x70, 0x11, 0x80, 0x99, 0x09, 0x81, 0x5c, 0x1f, 0x80, 0x9a, 0x82, 0x8a, 0x80, 0x9f, 0x83, 0x97, 0x81, 0x8d, 0x81, 0xc0, 0x8c, 0x18, 0x11, 0x1c, 0x91, 0x03, 0x01, 0x89, 0x00, 0x14, 0x28, 0x11, 0x09, 0x02, 0x05, 0x13, 0x24, 0xca, 0x21, 0x18, 0x08, 0x08, 0x00, 0x21, 0x0b, 0x0b, 0x91, 0x09, 0x00, 0x06, 0x00, 0x29, 0x41, 0x21, 0x83, 0x40, 0xa7, 0x08, 0x80, 0x97, 0x80, 0x90, 0x80, 0x41, 0xbc, 0x81, 0x8b, 0x88, 0x24, 0x21, 0x09, 0x14, 0x8d, 0x00, 0x01, 0x85, 0x97, 0x81, 0xb8, 0x00, 0x80, 0x9c, 0x83, 0x88, 0x81, 0x41, 0x55, 0x81, 0x9e, 0x89, 0x41, 0x92, 0x95, 0xbe, 0x83, 0x9f, 0x81, 0x60, 0xd4, 0x62, 0x00, 0x03, 0x80, 0x40, 0xd2, 0x00, 0x80, 0x60, 0xd4, 0xc0, 0xd4, 0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b, 0x80, 0x8b, 0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f, 0x06, 0x80, 0x9b, 0x03, 0x04, 0x00, 0x16, 0x80, 0x41, 0x53, 0x81, 0x98, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x07, 0x81, 0xb1, 0x55, 0xff, 0x18, 0x9a, 0x01, 0x00, 0x08, 0x80, 0x89, 0x03, 0x00, 0x00, 0x28, 0x18, 0x00, 0x00, 0x02, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0b, 0x06, 0x03, 0x03, 0x00, 0x80, 0x89, 0x80, 0x90, 0x22, 0x04, 0x80, 0x90, }; static const uint8_t unicode_prop_Other_Alphabetic_table[411] = { 0x43, 0x44, 0x80, 0x42, 0x69, 0x8d, 0x00, 0x01, 0x01, 0x00, 0xc7, 0x8a, 0xaf, 0x8c, 0x06, 0x8f, 0x80, 0xe4, 0x33, 0x19, 0x0b, 0x80, 0xa2, 0x80, 0x9d, 0x8f, 0xe5, 0x8a, 0xe4, 0x0a, 0x88, 0x02, 0x03, 0x40, 0xa6, 0x8b, 0x16, 0x85, 0x93, 0xb5, 0x09, 0x8e, 0x01, 0x22, 0x89, 0x81, 0x9c, 0x82, 0xb9, 0x31, 0x09, 0x81, 0x89, 0x80, 0x89, 0x81, 0x9c, 0x82, 0xb9, 0x23, 0x09, 0x0b, 0x80, 0x9d, 0x0a, 0x80, 0x8a, 0x82, 0xb9, 0x38, 0x10, 0x81, 0x94, 0x81, 0x95, 0x13, 0x82, 0xb9, 0x31, 0x09, 0x81, 0x88, 0x81, 0x89, 0x81, 0x9d, 0x80, 0xba, 0x22, 0x10, 0x82, 0x89, 0x80, 0xa7, 0x83, 0xb9, 0x30, 0x10, 0x17, 0x81, 0x8a, 0x81, 0x9c, 0x82, 0xb9, 0x30, 0x10, 0x17, 0x81, 0x8a, 0x81, 0x9b, 0x83, 0xb9, 0x30, 0x10, 0x82, 0x89, 0x80, 0x89, 0x81, 0x9c, 0x82, 0xca, 0x28, 0x00, 0x87, 0x91, 0x81, 0xbc, 0x01, 0x86, 0x91, 0x80, 0xe2, 0x01, 0x28, 0x81, 0x8f, 0x80, 0x40, 0xa2, 0x90, 0x8a, 0x8a, 0x80, 0xa3, 0xed, 0x8b, 0x00, 0x0b, 0x96, 0x1b, 0x10, 0x11, 0x32, 0x83, 0x8c, 0x8b, 0x00, 0x89, 0x83, 0x46, 0x73, 0x81, 0x9d, 0x81, 0x9d, 0x81, 0x9d, 0x81, 0xc1, 0x92, 0x40, 0xbb, 0x81, 0xa1, 0x80, 0xf5, 0x8b, 0x83, 0x88, 0x40, 0xdd, 0x84, 0xb8, 0x89, 0x81, 0x93, 0xc9, 0x81, 0xbe, 0x84, 0xaf, 0x8e, 0xbb, 0x82, 0x9d, 0x88, 0x09, 0xb8, 0x8a, 0xb1, 0x92, 0x41, 0xaf, 0x8d, 0x46, 0xc0, 0xb3, 0x48, 0xf5, 0x9f, 0x60, 0x78, 0x73, 0x87, 0xa1, 0x81, 0x41, 0x61, 0x07, 0x80, 0x96, 0x84, 0xd7, 0x81, 0xb1, 0x8f, 0x00, 0xb8, 0x80, 0xa5, 0x84, 0x9b, 0x8b, 0xac, 0x83, 0xaf, 0x8b, 0xa4, 0x80, 0xc2, 0x8d, 0x8b, 0x07, 0x81, 0xac, 0x82, 0xb1, 0x00, 0x11, 0x0c, 0x80, 0xab, 0x24, 0x80, 0x40, 0xec, 0x87, 0x60, 0x4f, 0x32, 0x80, 0x48, 0x56, 0x84, 0x46, 0x85, 0x10, 0x0c, 0x83, 0x43, 0x13, 0x83, 0x41, 0x82, 0x81, 0x41, 0x52, 0x82, 0xb4, 0x8d, 0xbb, 0x80, 0xac, 0x88, 0xc6, 0x82, 0xa3, 0x8b, 0x91, 0x81, 0xb8, 0x82, 0xaf, 0x8c, 0x8d, 0x81, 0xdb, 0x88, 0x08, 0x28, 0x40, 0x9f, 0x89, 0x96, 0x83, 0xb9, 0x31, 0x09, 0x81, 0x89, 0x80, 0x89, 0x81, 0x40, 0xd0, 0x8c, 0x02, 0xe9, 0x91, 0x40, 0xec, 0x31, 0x86, 0x9c, 0x81, 0xd1, 0x8e, 0x00, 0xe9, 0x8a, 0xe6, 0x8d, 0x41, 0x00, 0x8c, 0x40, 0xf6, 0x28, 0x09, 0x0a, 0x00, 0x80, 0x40, 0x8d, 0x31, 0x2b, 0x80, 0x9b, 0x89, 0xa9, 0x20, 0x83, 0x91, 0x8a, 0xad, 0x8d, 0x41, 0x96, 0x38, 0x86, 0xd2, 0x95, 0x80, 0x8d, 0xf9, 0x2a, 0x00, 0x08, 0x10, 0x02, 0x80, 0xc1, 0x20, 0x08, 0x83, 0x41, 0x5b, 0x83, 0x60, 0x50, 0x57, 0x00, 0xb6, 0x33, 0xdc, 0x81, 0x60, 0x4c, 0xab, 0x80, 0x60, 0x23, 0x60, 0x30, 0x90, 0x0e, 0x01, 0x04, 0x49, 0x1b, 0x80, 0x47, 0xe7, 0x99, 0x85, 0x99, 0x85, 0x99, }; static const uint8_t unicode_prop_Other_Lowercase_table[51] = { 0x40, 0xa9, 0x80, 0x8e, 0x80, 0x41, 0xf4, 0x88, 0x31, 0x9d, 0x84, 0xdf, 0x80, 0xb3, 0x80, 0x59, 0xb0, 0xbe, 0x8c, 0x80, 0xa1, 0xa4, 0x42, 0xb0, 0x80, 0x8c, 0x80, 0x8f, 0x8c, 0x40, 0xd2, 0x8f, 0x43, 0x4f, 0x99, 0x47, 0x91, 0x81, 0x60, 0x7a, 0x1d, 0x81, 0x40, 0xd1, 0x80, 0x40, 0x86, 0x81, 0x43, 0x61, 0x83, }; static const uint8_t unicode_prop_Other_Uppercase_table[15] = { 0x60, 0x21, 0x5f, 0x8f, 0x43, 0x45, 0x99, 0x61, 0xcc, 0x5f, 0x99, 0x85, 0x99, 0x85, 0x99, }; static const uint8_t unicode_prop_Other_Grapheme_Extend_table[65] = { 0x49, 0xbd, 0x80, 0x97, 0x80, 0x41, 0x65, 0x80, 0x97, 0x80, 0xe5, 0x80, 0x97, 0x80, 0x40, 0xe9, 0x80, 0x91, 0x81, 0xe6, 0x80, 0x97, 0x80, 0xf6, 0x80, 0x8e, 0x80, 0x4d, 0x54, 0x80, 0x44, 0xd5, 0x80, 0x50, 0x20, 0x81, 0x60, 0xcf, 0x6d, 0x81, 0x53, 0x9d, 0x80, 0x97, 0x80, 0x41, 0x57, 0x80, 0x8b, 0x80, 0x40, 0xf0, 0x80, 0x43, 0x7f, 0x80, 0x60, 0xb8, 0x33, 0x07, 0x84, 0x6c, 0x2e, 0xac, 0xdf, }; static const uint8_t unicode_prop_Other_Default_Ignorable_Code_Point_table[32] = { 0x43, 0x4e, 0x80, 0x4e, 0x0e, 0x81, 0x46, 0x52, 0x81, 0x48, 0xae, 0x80, 0x50, 0xfd, 0x80, 0x60, 0xce, 0x3a, 0x80, 0xce, 0x88, 0x6d, 0x00, 0x06, 0x00, 0x9d, 0xdf, 0xff, 0x40, 0xef, 0x4e, 0x0f, }; static const uint8_t unicode_prop_Other_ID_Start_table[11] = { 0x58, 0x84, 0x81, 0x48, 0x90, 0x80, 0x94, 0x80, 0x4f, 0x6b, 0x81, }; static const uint8_t unicode_prop_Other_ID_Continue_table[12] = { 0x40, 0xb6, 0x80, 0x42, 0xce, 0x80, 0x4f, 0xe0, 0x88, 0x46, 0x67, 0x80, }; static const uint8_t unicode_prop_Prepended_Concatenation_Mark_table[17] = { 0x45, 0xff, 0x85, 0x40, 0xd6, 0x80, 0xb0, 0x80, 0x41, 0xd1, 0x80, 0x61, 0x07, 0xd9, 0x80, 0x8e, 0x80, }; static const uint8_t unicode_prop_XID_Start1_table[31] = { 0x43, 0x79, 0x80, 0x4a, 0xb7, 0x80, 0xfe, 0x80, 0x60, 0x21, 0xe6, 0x81, 0x60, 0xcb, 0xc0, 0x85, 0x41, 0x95, 0x81, 0xf3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x41, 0x1e, 0x81, }; static const uint8_t unicode_prop_XID_Continue1_table[23] = { 0x43, 0x79, 0x80, 0x60, 0x2d, 0x1f, 0x81, 0x60, 0xcb, 0xc0, 0x85, 0x41, 0x95, 0x81, 0xf3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, }; static const uint8_t unicode_prop_Changes_When_Titlecased1_table[22] = { 0x41, 0xc3, 0x08, 0x08, 0x81, 0xa4, 0x81, 0x4e, 0xdc, 0xaa, 0x0a, 0x4e, 0x87, 0x3f, 0x3f, 0x87, 0x8b, 0x80, 0x8e, 0x80, 0xae, 0x80, }; static const uint8_t unicode_prop_Changes_When_Casefolded1_table[33] = { 0x40, 0xde, 0x80, 0xcf, 0x80, 0x97, 0x80, 0x44, 0x3c, 0x80, 0x59, 0x11, 0x80, 0x40, 0xe4, 0x3f, 0x3f, 0x87, 0x89, 0x11, 0x05, 0x02, 0x11, 0x80, 0xa9, 0x11, 0x80, 0x60, 0xdb, 0x07, 0x86, 0x8b, 0x84, }; static const uint8_t unicode_prop_Changes_When_NFKC_Casefolded1_table[441] = { 0x40, 0x9f, 0x06, 0x00, 0x01, 0x00, 0x01, 0x12, 0x10, 0x82, 0x9f, 0x80, 0xcf, 0x01, 0x80, 0x8b, 0x07, 0x80, 0xfb, 0x01, 0x01, 0x80, 0xa5, 0x80, 0x40, 0xbb, 0x88, 0x9e, 0x29, 0x84, 0xda, 0x08, 0x81, 0x89, 0x80, 0xa3, 0x04, 0x02, 0x04, 0x08, 0x80, 0xc9, 0x82, 0x9c, 0x80, 0x41, 0x93, 0x80, 0x40, 0x93, 0x80, 0xd7, 0x83, 0x42, 0xde, 0x87, 0xfb, 0x08, 0x80, 0xd2, 0x01, 0x80, 0xa1, 0x11, 0x80, 0x40, 0xfc, 0x81, 0x42, 0xd4, 0x80, 0xfe, 0x80, 0xa7, 0x81, 0xad, 0x80, 0xb5, 0x80, 0x88, 0x03, 0x03, 0x03, 0x80, 0x8b, 0x80, 0x88, 0x00, 0x26, 0x80, 0x90, 0x80, 0x88, 0x03, 0x03, 0x03, 0x80, 0x8b, 0x80, 0x41, 0x41, 0x80, 0xe1, 0x81, 0x46, 0x52, 0x81, 0xd4, 0x83, 0x45, 0x1c, 0x10, 0x8a, 0x80, 0x91, 0x80, 0x9b, 0x8c, 0x80, 0xa1, 0xa4, 0x40, 0xd9, 0x80, 0x40, 0xd5, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x3f, 0x3f, 0x87, 0x89, 0x11, 0x04, 0x00, 0x29, 0x04, 0x12, 0x80, 0x88, 0x12, 0x80, 0x88, 0x11, 0x11, 0x04, 0x08, 0x8f, 0x00, 0x20, 0x8b, 0x12, 0x2a, 0x08, 0x0b, 0x00, 0x07, 0x82, 0x8c, 0x06, 0x92, 0x81, 0x9a, 0x80, 0x8c, 0x8a, 0x80, 0xd6, 0x18, 0x10, 0x8a, 0x01, 0x0c, 0x0a, 0x00, 0x10, 0x11, 0x02, 0x06, 0x05, 0x1c, 0x85, 0x8f, 0x8f, 0x8f, 0x88, 0x80, 0x40, 0xa1, 0x08, 0x81, 0x40, 0xf7, 0x81, 0x41, 0x34, 0xd5, 0x99, 0x9a, 0x45, 0x20, 0x80, 0xe6, 0x82, 0xe4, 0x80, 0x41, 0x9e, 0x81, 0x40, 0xf0, 0x80, 0x41, 0x2e, 0x80, 0xd2, 0x80, 0x8b, 0x40, 0xd5, 0xa9, 0x80, 0xb4, 0x00, 0x82, 0xdf, 0x09, 0x80, 0xde, 0x80, 0xb0, 0xdd, 0x82, 0x8d, 0xdf, 0x9e, 0x80, 0xa7, 0x87, 0xae, 0x80, 0x41, 0x7f, 0x60, 0x72, 0x9b, 0x81, 0x40, 0xd1, 0x80, 0x40, 0x86, 0x81, 0x43, 0x61, 0x83, 0x88, 0x80, 0x60, 0x4d, 0x95, 0x41, 0x0d, 0x08, 0x00, 0x81, 0x89, 0x00, 0x00, 0x09, 0x82, 0xc3, 0x81, 0xe9, 0xa5, 0x86, 0x8b, 0x24, 0x00, 0x97, 0x04, 0x00, 0x01, 0x01, 0x80, 0xeb, 0xa0, 0x41, 0x6a, 0x91, 0xbf, 0x81, 0xb5, 0xa7, 0x8c, 0x82, 0x99, 0x95, 0x94, 0x81, 0x8b, 0x80, 0x92, 0x03, 0x1a, 0x00, 0x80, 0x40, 0x86, 0x08, 0x80, 0x9f, 0x99, 0x40, 0x83, 0x15, 0x0d, 0x0d, 0x0a, 0x16, 0x06, 0x80, 0x88, 0x60, 0xbc, 0xa6, 0x83, 0x54, 0xb9, 0x86, 0x8d, 0x87, 0xbf, 0x85, 0x42, 0x3e, 0xd4, 0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b, 0x80, 0x8b, 0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f, 0x06, 0x80, 0x9b, 0x03, 0x04, 0x00, 0x16, 0x80, 0x41, 0x53, 0x81, 0x41, 0x23, 0x81, 0xb1, 0x55, 0xff, 0x18, 0x9a, 0x01, 0x00, 0x08, 0x80, 0x89, 0x03, 0x00, 0x00, 0x28, 0x18, 0x00, 0x00, 0x02, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x0b, 0x06, 0x03, 0x03, 0x00, 0x80, 0x89, 0x80, 0x90, 0x22, 0x04, 0x80, 0x90, 0x42, 0x43, 0x8a, 0x84, 0x9e, 0x80, 0x9f, 0x99, 0x82, 0xa2, 0x80, 0xee, 0x82, 0x8c, 0xab, 0x83, 0x88, 0x31, 0x49, 0x9d, 0x89, 0x60, 0xfc, 0x05, 0x42, 0x1d, 0x6b, 0x05, 0xe1, 0x4f, 0xff, }; static const uint8_t unicode_prop_ASCII_Hex_Digit_table[5] = { 0xaf, 0x89, 0x35, 0x99, 0x85, }; static const uint8_t unicode_prop_Bidi_Control_table[10] = { 0x46, 0x1b, 0x80, 0x59, 0xf0, 0x81, 0x99, 0x84, 0xb6, 0x83, }; static const uint8_t unicode_prop_Dash_table[53] = { 0xac, 0x80, 0x45, 0x5b, 0x80, 0xb2, 0x80, 0x4e, 0x40, 0x80, 0x44, 0x04, 0x80, 0x48, 0x08, 0x85, 0xbc, 0x80, 0xa6, 0x80, 0x8e, 0x80, 0x41, 0x85, 0x80, 0x4c, 0x03, 0x01, 0x80, 0x9e, 0x0b, 0x80, 0x41, 0xda, 0x80, 0x92, 0x80, 0xee, 0x80, 0x60, 0xcd, 0x8f, 0x81, 0xa4, 0x80, 0x89, 0x80, 0x40, 0xa8, 0x80, 0x4f, 0x9e, 0x80, }; static const uint8_t unicode_prop_Deprecated_table[23] = { 0x41, 0x48, 0x80, 0x45, 0x28, 0x80, 0x49, 0x02, 0x00, 0x80, 0x48, 0x28, 0x81, 0x48, 0xc4, 0x85, 0x42, 0xb8, 0x81, 0x6d, 0xdc, 0xd5, 0x80, }; static const uint8_t unicode_prop_Diacritic_table[358] = { 0xdd, 0x00, 0x80, 0xc6, 0x05, 0x03, 0x01, 0x81, 0x41, 0xf6, 0x40, 0x9e, 0x07, 0x25, 0x90, 0x0b, 0x80, 0x88, 0x81, 0x40, 0xfc, 0x84, 0x40, 0xd0, 0x80, 0xb6, 0x90, 0x80, 0x9a, 0x00, 0x01, 0x00, 0x40, 0x85, 0x3b, 0x81, 0x40, 0x85, 0x0b, 0x0a, 0x82, 0xc2, 0x9a, 0xda, 0x8a, 0xb9, 0x8a, 0xa1, 0x81, 0x40, 0xc8, 0x9b, 0xbc, 0x80, 0x8f, 0x02, 0x83, 0x9b, 0x80, 0xc9, 0x80, 0x8f, 0x80, 0xed, 0x80, 0x8f, 0x80, 0xed, 0x80, 0x8f, 0x80, 0xae, 0x82, 0xbb, 0x80, 0x8f, 0x06, 0x80, 0xf6, 0x80, 0xfe, 0x80, 0xed, 0x80, 0x8f, 0x80, 0xec, 0x81, 0x8f, 0x80, 0xfb, 0x80, 0xfb, 0x28, 0x80, 0xea, 0x80, 0x8c, 0x84, 0xca, 0x81, 0x9a, 0x00, 0x00, 0x03, 0x81, 0xc1, 0x10, 0x81, 0xbd, 0x80, 0xef, 0x00, 0x81, 0xa7, 0x0b, 0x84, 0x98, 0x30, 0x80, 0x89, 0x81, 0x42, 0xc0, 0x82, 0x44, 0x68, 0x8a, 0x88, 0x80, 0x41, 0x5a, 0x82, 0x41, 0x38, 0x39, 0x80, 0xaf, 0x8d, 0xf5, 0x80, 0x8e, 0x80, 0xa5, 0x88, 0xb5, 0x81, 0x40, 0x89, 0x81, 0xbf, 0x85, 0xd1, 0x98, 0x18, 0x28, 0x0a, 0xb1, 0xbe, 0xd8, 0x8b, 0xa4, 0x22, 0x82, 0x41, 0xbc, 0x00, 0x82, 0x8a, 0x82, 0x8c, 0x82, 0x8c, 0x82, 0x8c, 0x81, 0x4c, 0xef, 0x82, 0x41, 0x3c, 0x80, 0x41, 0xf9, 0x85, 0xe8, 0x83, 0xde, 0x80, 0x60, 0x75, 0x71, 0x80, 0x8b, 0x08, 0x80, 0x9b, 0x81, 0xd1, 0x81, 0x8d, 0xa1, 0xe5, 0x82, 0xec, 0x81, 0x40, 0xc9, 0x80, 0x9a, 0x91, 0xb8, 0x83, 0xa3, 0x80, 0xde, 0x80, 0x8b, 0x80, 0xa3, 0x80, 0x40, 0x94, 0x82, 0xc0, 0x83, 0xb2, 0x80, 0xe3, 0x84, 0x88, 0x82, 0xff, 0x81, 0x60, 0x4f, 0x2f, 0x80, 0x43, 0x00, 0x8f, 0x41, 0x0d, 0x00, 0x80, 0xae, 0x80, 0xac, 0x81, 0xc2, 0x80, 0x42, 0xfb, 0x80, 0x48, 0x03, 0x81, 0x42, 0x3a, 0x85, 0x42, 0x1d, 0x8a, 0x41, 0x67, 0x81, 0xf7, 0x81, 0xbd, 0x80, 0xcb, 0x80, 0x88, 0x82, 0xe7, 0x81, 0x40, 0xb1, 0x81, 0xd0, 0x80, 0x8f, 0x80, 0x97, 0x32, 0x84, 0x40, 0xcc, 0x02, 0x80, 0xfa, 0x81, 0x40, 0xfa, 0x81, 0xfd, 0x80, 0xf5, 0x81, 0xf2, 0x80, 0x41, 0x0c, 0x81, 0x41, 0x01, 0x0b, 0x80, 0x40, 0x9b, 0x80, 0xd2, 0x80, 0x91, 0x80, 0xd0, 0x80, 0x41, 0xa4, 0x80, 0x41, 0x01, 0x00, 0x81, 0xd0, 0x80, 0x60, 0x4d, 0x57, 0x84, 0xba, 0x86, 0x44, 0x57, 0x90, 0xcf, 0x81, 0x60, 0x61, 0x74, 0x12, 0x2f, 0x39, 0x86, 0x9d, 0x83, 0x4f, 0x81, 0x86, 0x41, 0xb4, 0x83, 0x45, 0xdf, 0x86, 0xec, 0x10, 0x82, }; static const uint8_t unicode_prop_Extender_table[89] = { 0x40, 0xb6, 0x80, 0x42, 0x17, 0x81, 0x43, 0x6d, 0x80, 0x41, 0xb8, 0x80, 0x43, 0x59, 0x80, 0x42, 0xef, 0x80, 0xfe, 0x80, 0x49, 0x42, 0x80, 0xb7, 0x80, 0x42, 0x62, 0x80, 0x41, 0x8d, 0x80, 0xc3, 0x80, 0x53, 0x88, 0x80, 0xaa, 0x84, 0xe6, 0x81, 0xdc, 0x82, 0x60, 0x6f, 0x15, 0x80, 0x45, 0xf5, 0x80, 0x43, 0xc1, 0x80, 0x95, 0x80, 0x40, 0x88, 0x80, 0xeb, 0x80, 0x94, 0x81, 0x60, 0x54, 0x7a, 0x80, 0x53, 0xeb, 0x80, 0x42, 0x67, 0x82, 0x44, 0xce, 0x80, 0x60, 0x50, 0xa8, 0x81, 0x44, 0x9b, 0x08, 0x80, 0x60, 0x71, 0x57, 0x81, 0x48, 0x05, 0x82, }; static const uint8_t unicode_prop_Hex_Digit_table[12] = { 0xaf, 0x89, 0x35, 0x99, 0x85, 0x60, 0xfe, 0xa8, 0x89, 0x35, 0x99, 0x85, }; static const uint8_t unicode_prop_IDS_Binary_Operator_table[5] = { 0x60, 0x2f, 0xef, 0x09, 0x87, }; static const uint8_t unicode_prop_IDS_Trinary_Operator_table[4] = { 0x60, 0x2f, 0xf1, 0x81, }; static const uint8_t unicode_prop_Ideographic_table[66] = { 0x60, 0x30, 0x05, 0x81, 0x98, 0x88, 0x8d, 0x82, 0x43, 0xc4, 0x59, 0xbf, 0xbf, 0x60, 0x51, 0xfc, 0x60, 0x59, 0x02, 0x41, 0x6d, 0x81, 0xe9, 0x60, 0x75, 0x09, 0x80, 0x9a, 0x57, 0xf7, 0x87, 0x44, 0xd5, 0xa9, 0x88, 0x60, 0x24, 0x66, 0x41, 0x8b, 0x60, 0x4d, 0x03, 0x60, 0xa6, 0xdd, 0xa1, 0x50, 0x34, 0x8a, 0x40, 0xdd, 0x81, 0x56, 0x81, 0x8d, 0x5d, 0x30, 0x4c, 0x1e, 0x42, 0x1d, 0x45, 0xe1, 0x53, 0x4a, }; static const uint8_t unicode_prop_Join_Control_table[4] = { 0x60, 0x20, 0x0b, 0x81, }; static const uint8_t unicode_prop_Logical_Order_Exception_table[15] = { 0x4e, 0x3f, 0x84, 0xfa, 0x84, 0x4a, 0xef, 0x11, 0x80, 0x60, 0x90, 0xf9, 0x09, 0x00, 0x81, }; static const uint8_t unicode_prop_Noncharacter_Code_Point_table[71] = { 0x60, 0xfd, 0xcf, 0x9f, 0x42, 0x0d, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, }; static const uint8_t unicode_prop_Pattern_Syntax_table[58] = { 0xa0, 0x8e, 0x89, 0x86, 0x99, 0x18, 0x80, 0x99, 0x83, 0xa1, 0x30, 0x00, 0x08, 0x00, 0x0b, 0x03, 0x02, 0x80, 0x96, 0x80, 0x9e, 0x80, 0x5f, 0x17, 0x97, 0x87, 0x8e, 0x81, 0x92, 0x80, 0x89, 0x41, 0x30, 0x42, 0xcf, 0x40, 0x9f, 0x42, 0x75, 0x9d, 0x44, 0x6b, 0x41, 0xff, 0xff, 0x41, 0x80, 0x13, 0x98, 0x8e, 0x80, 0x60, 0xcd, 0x0c, 0x81, 0x41, 0x04, 0x81, }; static const uint8_t unicode_prop_Pattern_White_Space_table[11] = { 0x88, 0x84, 0x91, 0x80, 0xe3, 0x80, 0x5f, 0x87, 0x81, 0x97, 0x81, }; static const uint8_t unicode_prop_Quotation_Mark_table[31] = { 0xa1, 0x03, 0x80, 0x40, 0x82, 0x80, 0x8e, 0x80, 0x5f, 0x5b, 0x87, 0x98, 0x81, 0x4e, 0x06, 0x80, 0x41, 0xc8, 0x83, 0x8c, 0x82, 0x60, 0xce, 0x20, 0x83, 0x40, 0xbc, 0x03, 0x80, 0xd9, 0x81, }; static const uint8_t unicode_prop_Radical_table[9] = { 0x60, 0x2e, 0x7f, 0x99, 0x80, 0xd8, 0x8b, 0x40, 0xd5, }; static const uint8_t unicode_prop_Regional_Indicator_table[4] = { 0x61, 0xf1, 0xe5, 0x99, }; static const uint8_t unicode_prop_Sentence_Terminal_table[188] = { 0xa0, 0x80, 0x8b, 0x80, 0x8f, 0x80, 0x45, 0x48, 0x80, 0x40, 0x93, 0x81, 0x40, 0xb3, 0x80, 0xaa, 0x82, 0x40, 0xf5, 0x80, 0xbc, 0x00, 0x02, 0x81, 0x41, 0x24, 0x81, 0x46, 0xe3, 0x81, 0x43, 0x15, 0x03, 0x81, 0x43, 0x04, 0x80, 0x40, 0xc5, 0x81, 0x40, 0xcb, 0x04, 0x80, 0x41, 0x39, 0x81, 0x41, 0x61, 0x83, 0x40, 0xad, 0x09, 0x81, 0x40, 0xda, 0x81, 0xc0, 0x81, 0x43, 0xbb, 0x81, 0x88, 0x82, 0x4d, 0xe3, 0x80, 0x8c, 0x80, 0x41, 0xc4, 0x80, 0x60, 0x74, 0xfb, 0x80, 0x41, 0x0d, 0x81, 0x40, 0xe2, 0x02, 0x80, 0x41, 0x7d, 0x81, 0xd5, 0x81, 0xde, 0x80, 0x40, 0x97, 0x81, 0x40, 0x92, 0x82, 0x40, 0x8f, 0x81, 0x40, 0xf8, 0x80, 0x60, 0x52, 0x65, 0x02, 0x81, 0x40, 0xa8, 0x80, 0x8b, 0x80, 0x8f, 0x80, 0xc0, 0x80, 0x4a, 0xf3, 0x81, 0x44, 0xfc, 0x84, 0x40, 0xec, 0x81, 0xf4, 0x83, 0xfe, 0x82, 0x40, 0x80, 0x0d, 0x80, 0x8f, 0x81, 0xd7, 0x08, 0x81, 0xeb, 0x80, 0x41, 0xa0, 0x81, 0x41, 0x74, 0x0c, 0x8e, 0xe8, 0x81, 0x40, 0xf8, 0x82, 0x42, 0x04, 0x00, 0x80, 0x40, 0xfa, 0x81, 0xd6, 0x81, 0x41, 0xa3, 0x81, 0x42, 0xb3, 0x81, 0x60, 0x4b, 0x74, 0x81, 0x40, 0x84, 0x80, 0xc0, 0x81, 0x8a, 0x80, 0x43, 0x52, 0x80, 0x60, 0x4e, 0x05, 0x80, 0x5d, 0xe7, 0x80, }; static const uint8_t unicode_prop_Soft_Dotted_table[71] = { 0xe8, 0x81, 0x40, 0xc3, 0x80, 0x41, 0x18, 0x80, 0x9d, 0x80, 0xb3, 0x80, 0x93, 0x80, 0x41, 0x3f, 0x80, 0xe1, 0x00, 0x80, 0x59, 0x08, 0x80, 0xb2, 0x80, 0x8c, 0x02, 0x80, 0x40, 0x83, 0x80, 0x40, 0x9c, 0x80, 0x41, 0xa4, 0x80, 0x40, 0xd5, 0x81, 0x4b, 0x31, 0x80, 0x61, 0xa7, 0xa4, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, }; static const uint8_t unicode_prop_Terminal_Punctuation_table[241] = { 0xa0, 0x80, 0x89, 0x00, 0x80, 0x8a, 0x0a, 0x80, 0x43, 0x3d, 0x07, 0x80, 0x42, 0x00, 0x80, 0xb8, 0x80, 0xc7, 0x80, 0x8d, 0x01, 0x81, 0x40, 0xb3, 0x80, 0xaa, 0x8a, 0x00, 0x40, 0xea, 0x81, 0xb5, 0x8e, 0x9e, 0x80, 0x41, 0x04, 0x81, 0x44, 0xf3, 0x81, 0x40, 0xab, 0x03, 0x85, 0x41, 0x36, 0x81, 0x43, 0x14, 0x87, 0x43, 0x04, 0x80, 0xfb, 0x82, 0xc6, 0x81, 0x40, 0x9c, 0x12, 0x80, 0xa6, 0x19, 0x81, 0x41, 0x39, 0x81, 0x41, 0x61, 0x83, 0x40, 0xad, 0x08, 0x82, 0x40, 0xda, 0x84, 0xbd, 0x81, 0x43, 0xbb, 0x81, 0x88, 0x82, 0x4d, 0xe3, 0x80, 0x8c, 0x03, 0x80, 0x89, 0x00, 0x81, 0x41, 0xb0, 0x81, 0x60, 0x74, 0xfa, 0x81, 0x41, 0x0c, 0x82, 0x40, 0xe2, 0x84, 0x41, 0x7d, 0x81, 0xd5, 0x81, 0xde, 0x80, 0x40, 0x96, 0x82, 0x40, 0x92, 0x82, 0xfe, 0x80, 0x8f, 0x81, 0x40, 0xf8, 0x80, 0x60, 0x52, 0x63, 0x10, 0x83, 0x40, 0xa8, 0x80, 0x89, 0x00, 0x80, 0x8a, 0x0a, 0x80, 0xc0, 0x01, 0x80, 0x44, 0x39, 0x80, 0xaf, 0x80, 0x44, 0x85, 0x80, 0x40, 0xc6, 0x80, 0x41, 0x35, 0x81, 0x40, 0x97, 0x85, 0xc3, 0x85, 0xd8, 0x83, 0x43, 0xb7, 0x84, 0x40, 0xec, 0x86, 0xef, 0x83, 0xfe, 0x82, 0x40, 0x80, 0x0d, 0x80, 0x8f, 0x81, 0xd7, 0x84, 0xeb, 0x80, 0x41, 0xa0, 0x82, 0x8b, 0x81, 0x41, 0x65, 0x1a, 0x8e, 0xe8, 0x81, 0x40, 0xf8, 0x82, 0x42, 0x04, 0x00, 0x80, 0x40, 0xfa, 0x81, 0xd6, 0x0b, 0x81, 0x41, 0x9d, 0x82, 0xac, 0x80, 0x42, 0x84, 0x81, 0x45, 0x76, 0x84, 0x60, 0x45, 0xf8, 0x81, 0x40, 0x84, 0x80, 0xc0, 0x82, 0x89, 0x80, 0x43, 0x51, 0x81, 0x60, 0x4e, 0x05, 0x80, 0x5d, 0xe6, 0x83, }; static const uint8_t unicode_prop_Unified_Ideograph_table[42] = { 0x60, 0x33, 0xff, 0x59, 0xbf, 0xbf, 0x60, 0x51, 0xfc, 0x60, 0x5a, 0x10, 0x08, 0x00, 0x81, 0x89, 0x00, 0x00, 0x09, 0x82, 0x61, 0x05, 0xd5, 0x60, 0xa6, 0xdd, 0xa1, 0x50, 0x34, 0x8a, 0x40, 0xdd, 0x81, 0x56, 0x81, 0x8d, 0x5d, 0x30, 0x54, 0x1e, 0x53, 0x4a, }; static const uint8_t unicode_prop_Variation_Selector_table[12] = { 0x58, 0x0a, 0x82, 0x60, 0xe5, 0xf1, 0x8f, 0x6d, 0x02, 0xef, 0x40, 0xef, }; static const uint8_t unicode_prop_White_Space_table[22] = { 0x88, 0x84, 0x91, 0x80, 0xe3, 0x80, 0x99, 0x80, 0x55, 0xde, 0x80, 0x49, 0x7e, 0x8a, 0x9c, 0x0c, 0x80, 0xae, 0x80, 0x4f, 0x9f, 0x80, }; static const uint8_t unicode_prop_Bidi_Mirrored_table[171] = { 0xa7, 0x81, 0x91, 0x00, 0x80, 0x9b, 0x00, 0x80, 0x9c, 0x00, 0x80, 0xac, 0x80, 0x8e, 0x80, 0x4e, 0x7d, 0x83, 0x47, 0x5c, 0x81, 0x49, 0x9b, 0x81, 0x89, 0x81, 0xb5, 0x81, 0x8d, 0x81, 0x40, 0xb0, 0x80, 0x40, 0xbf, 0x1a, 0x2a, 0x02, 0x0a, 0x18, 0x18, 0x00, 0x03, 0x88, 0x20, 0x80, 0x91, 0x23, 0x88, 0x08, 0x00, 0x39, 0x9e, 0x0b, 0x20, 0x88, 0x09, 0x92, 0x21, 0x88, 0x21, 0x0b, 0x97, 0x81, 0x8f, 0x3b, 0x93, 0x0e, 0x81, 0x44, 0x3c, 0x8d, 0xc9, 0x01, 0x18, 0x08, 0x14, 0x1c, 0x12, 0x8d, 0x41, 0x92, 0x95, 0x0d, 0x80, 0x8d, 0x38, 0x35, 0x10, 0x1c, 0x01, 0x0c, 0x18, 0x02, 0x09, 0x89, 0x29, 0x81, 0x8b, 0x92, 0x03, 0x08, 0x00, 0x08, 0x03, 0x21, 0x2a, 0x97, 0x81, 0x8a, 0x0b, 0x18, 0x09, 0x0b, 0xaa, 0x0f, 0x80, 0xa7, 0x20, 0x00, 0x14, 0x22, 0x18, 0x14, 0x00, 0x40, 0xff, 0x80, 0x42, 0x02, 0x1a, 0x08, 0x81, 0x8d, 0x09, 0x89, 0x41, 0xdd, 0x89, 0x0f, 0x60, 0xce, 0x3c, 0x2c, 0x81, 0x40, 0xa1, 0x81, 0x91, 0x00, 0x80, 0x9b, 0x00, 0x80, 0x9c, 0x00, 0x00, 0x08, 0x81, 0x60, 0xd7, 0x76, 0x80, 0xb8, 0x80, 0xb8, 0x80, 0xb8, 0x80, 0xb8, 0x80, }; static const uint8_t unicode_prop_Emoji_table[238] = { 0xa2, 0x05, 0x04, 0x89, 0xee, 0x03, 0x80, 0x5f, 0x8c, 0x80, 0x8b, 0x80, 0x40, 0xd7, 0x80, 0x95, 0x80, 0xd9, 0x85, 0x8e, 0x81, 0x41, 0x6e, 0x81, 0x8b, 0x80, 0x40, 0xa5, 0x80, 0x98, 0x8a, 0x1a, 0x40, 0xc6, 0x80, 0x40, 0xe6, 0x81, 0x89, 0x80, 0x88, 0x80, 0xb9, 0x18, 0x84, 0x88, 0x01, 0x01, 0x09, 0x03, 0x01, 0x00, 0x09, 0x02, 0x02, 0x0f, 0x14, 0x00, 0x04, 0x8b, 0x8a, 0x09, 0x00, 0x08, 0x80, 0x91, 0x01, 0x81, 0x91, 0x28, 0x00, 0x0a, 0x0c, 0x01, 0x0b, 0x81, 0x8a, 0x0c, 0x09, 0x04, 0x08, 0x00, 0x81, 0x93, 0x0c, 0x28, 0x19, 0x03, 0x01, 0x01, 0x28, 0x01, 0x00, 0x00, 0x05, 0x02, 0x05, 0x80, 0x89, 0x81, 0x8e, 0x01, 0x03, 0x00, 0x03, 0x10, 0x80, 0x8a, 0x81, 0xaf, 0x82, 0x88, 0x80, 0x8d, 0x80, 0x8d, 0x80, 0x41, 0x73, 0x81, 0x41, 0xce, 0x82, 0x92, 0x81, 0xb2, 0x03, 0x80, 0x44, 0xd9, 0x80, 0x8b, 0x80, 0x42, 0x58, 0x00, 0x80, 0x61, 0xbd, 0x69, 0x80, 0x40, 0xc9, 0x80, 0x40, 0x9f, 0x81, 0x8b, 0x81, 0x8d, 0x01, 0x89, 0xca, 0x99, 0x01, 0x96, 0x80, 0x93, 0x01, 0x88, 0x94, 0x81, 0x40, 0xad, 0xa1, 0x81, 0xef, 0x09, 0x02, 0x81, 0xd2, 0x0a, 0x80, 0x41, 0x06, 0x80, 0xbe, 0x8a, 0x28, 0x97, 0x31, 0x0f, 0x8b, 0x01, 0x19, 0x03, 0x81, 0x8c, 0x09, 0x07, 0x81, 0x88, 0x04, 0x82, 0x8b, 0x17, 0x11, 0x00, 0x03, 0x05, 0x02, 0x05, 0xd5, 0xaf, 0xc5, 0x27, 0x0a, 0x3d, 0x10, 0x01, 0x10, 0x81, 0x89, 0x40, 0xe2, 0x8b, 0x41, 0x1f, 0xae, 0x80, 0x89, 0x80, 0xb1, 0x80, 0xd1, 0x80, 0xb2, 0xef, 0x22, 0x14, 0x86, 0x88, 0x98, 0x36, 0x88, 0x82, 0x8c, 0x86, }; static const uint8_t unicode_prop_Emoji_Component_table[28] = { 0xa2, 0x05, 0x04, 0x89, 0x5f, 0xd2, 0x80, 0x40, 0xd4, 0x80, 0x60, 0xdd, 0x2a, 0x80, 0x60, 0xf3, 0xd5, 0x99, 0x41, 0xfa, 0x84, 0x45, 0xaf, 0x83, 0x6c, 0x06, 0x6b, 0xdf, }; static const uint8_t unicode_prop_Emoji_Modifier_table[4] = { 0x61, 0xf3, 0xfa, 0x84, }; static const uint8_t unicode_prop_Emoji_Modifier_Base_table[66] = { 0x60, 0x26, 0x1c, 0x80, 0x40, 0xda, 0x80, 0x8f, 0x83, 0x61, 0xcc, 0x76, 0x80, 0xbb, 0x11, 0x01, 0x82, 0xf4, 0x09, 0x8a, 0x94, 0x92, 0x10, 0x1a, 0x02, 0x30, 0x00, 0x97, 0x80, 0x40, 0xc8, 0x0b, 0x80, 0x94, 0x03, 0x81, 0x40, 0xad, 0x12, 0x84, 0xd2, 0x80, 0x8f, 0x82, 0x88, 0x80, 0x8a, 0x80, 0x42, 0x3e, 0x01, 0x07, 0x3d, 0x80, 0x88, 0x89, 0x0a, 0xb7, 0x80, 0xbc, 0x08, 0x08, 0x80, 0x90, 0x10, 0x8c, }; static const uint8_t unicode_prop_Emoji_Presentation_table[144] = { 0x60, 0x23, 0x19, 0x81, 0x40, 0xcc, 0x1a, 0x01, 0x80, 0x42, 0x08, 0x81, 0x94, 0x81, 0xb1, 0x8b, 0xaa, 0x80, 0x92, 0x80, 0x8c, 0x07, 0x81, 0x90, 0x0c, 0x0f, 0x04, 0x80, 0x94, 0x06, 0x08, 0x03, 0x01, 0x06, 0x03, 0x81, 0x9b, 0x80, 0xa2, 0x00, 0x03, 0x10, 0x80, 0xbc, 0x82, 0x97, 0x80, 0x8d, 0x80, 0x43, 0x5a, 0x81, 0xb2, 0x03, 0x80, 0x61, 0xc4, 0xad, 0x80, 0x40, 0xc9, 0x80, 0x40, 0xbd, 0x01, 0x89, 0xca, 0x99, 0x00, 0x97, 0x80, 0x93, 0x01, 0x20, 0x82, 0x94, 0x81, 0x40, 0xad, 0xa0, 0x8b, 0x88, 0x80, 0xc5, 0x80, 0x95, 0x8b, 0xaa, 0x1c, 0x8b, 0x90, 0x10, 0x82, 0xc6, 0x00, 0x80, 0x40, 0xba, 0x81, 0xbe, 0x8c, 0x18, 0x97, 0x91, 0x80, 0x99, 0x81, 0x8c, 0x80, 0xd5, 0xd4, 0xaf, 0xc5, 0x28, 0x12, 0x0a, 0x92, 0x0e, 0x88, 0x40, 0xe2, 0x8b, 0x41, 0x1f, 0xae, 0x80, 0x89, 0x80, 0xb1, 0x80, 0xd1, 0x80, 0xb2, 0xef, 0x22, 0x14, 0x86, 0x88, 0x98, 0x36, 0x88, 0x82, 0x8c, 0x86, }; static const uint8_t unicode_prop_Extended_Pictographic_table[156] = { 0x40, 0xa8, 0x03, 0x80, 0x5f, 0x8c, 0x80, 0x8b, 0x80, 0x40, 0xd7, 0x80, 0x95, 0x80, 0xd9, 0x85, 0x8e, 0x81, 0x41, 0x6e, 0x81, 0x8b, 0x80, 0xde, 0x80, 0xc5, 0x80, 0x98, 0x8a, 0x1a, 0x40, 0xc6, 0x80, 0x40, 0xe6, 0x81, 0x89, 0x80, 0x88, 0x80, 0xb9, 0x18, 0x28, 0x8b, 0x80, 0xf1, 0x89, 0xf5, 0x81, 0x8a, 0x00, 0x00, 0x28, 0x10, 0x28, 0x89, 0x81, 0x8e, 0x01, 0x03, 0x00, 0x03, 0x10, 0x80, 0x8a, 0x84, 0xac, 0x82, 0x88, 0x80, 0x8d, 0x80, 0x8d, 0x80, 0x41, 0x73, 0x81, 0x41, 0xce, 0x82, 0x92, 0x81, 0xb2, 0x03, 0x80, 0x44, 0xd9, 0x80, 0x8b, 0x80, 0x42, 0x58, 0x00, 0x80, 0x61, 0xbd, 0x65, 0x40, 0xff, 0x8c, 0x82, 0x9e, 0x80, 0xbb, 0x85, 0x8b, 0x81, 0x8d, 0x01, 0x89, 0x91, 0xb8, 0x9a, 0x8e, 0x89, 0x80, 0x93, 0x01, 0x88, 0x03, 0x88, 0x41, 0xb1, 0x84, 0x41, 0x3d, 0x87, 0x41, 0x09, 0xaf, 0xff, 0xf3, 0x8b, 0xd4, 0xaa, 0x8b, 0x83, 0xb7, 0x87, 0x89, 0x85, 0xa7, 0x87, 0x9d, 0xd1, 0x8b, 0xae, 0x80, 0x89, 0x80, 0x41, 0xb8, 0x40, 0xff, 0x43, 0xfd, }; static const uint8_t unicode_prop_Default_Ignorable_Code_Point_table[51] = { 0x40, 0xac, 0x80, 0x42, 0xa0, 0x80, 0x42, 0xcb, 0x80, 0x4b, 0x41, 0x81, 0x46, 0x52, 0x81, 0xd4, 0x83, 0x47, 0xfb, 0x84, 0x99, 0x84, 0xb0, 0x8f, 0x50, 0xf3, 0x80, 0x60, 0xcc, 0x9a, 0x8f, 0x40, 0xee, 0x80, 0x40, 0x9f, 0x80, 0xce, 0x88, 0x60, 0xbc, 0xa6, 0x83, 0x54, 0xce, 0x87, 0x6c, 0x2e, 0x84, 0x4f, 0xff, }; typedef enum { UNICODE_PROP_Hyphen, UNICODE_PROP_Other_Math, UNICODE_PROP_Other_Alphabetic, UNICODE_PROP_Other_Lowercase, UNICODE_PROP_Other_Uppercase, UNICODE_PROP_Other_Grapheme_Extend, UNICODE_PROP_Other_Default_Ignorable_Code_Point, UNICODE_PROP_Other_ID_Start, UNICODE_PROP_Other_ID_Continue, UNICODE_PROP_Prepended_Concatenation_Mark, UNICODE_PROP_ID_Continue1, UNICODE_PROP_XID_Start1, UNICODE_PROP_XID_Continue1, UNICODE_PROP_Changes_When_Titlecased1, UNICODE_PROP_Changes_When_Casefolded1, UNICODE_PROP_Changes_When_NFKC_Casefolded1, UNICODE_PROP_ASCII_Hex_Digit, UNICODE_PROP_Bidi_Control, UNICODE_PROP_Dash, UNICODE_PROP_Deprecated, UNICODE_PROP_Diacritic, UNICODE_PROP_Extender, UNICODE_PROP_Hex_Digit, UNICODE_PROP_IDS_Binary_Operator, UNICODE_PROP_IDS_Trinary_Operator, UNICODE_PROP_Ideographic, UNICODE_PROP_Join_Control, UNICODE_PROP_Logical_Order_Exception, UNICODE_PROP_Noncharacter_Code_Point, UNICODE_PROP_Pattern_Syntax, UNICODE_PROP_Pattern_White_Space, UNICODE_PROP_Quotation_Mark, UNICODE_PROP_Radical, UNICODE_PROP_Regional_Indicator, UNICODE_PROP_Sentence_Terminal, UNICODE_PROP_Soft_Dotted, UNICODE_PROP_Terminal_Punctuation, UNICODE_PROP_Unified_Ideograph, UNICODE_PROP_Variation_Selector, UNICODE_PROP_White_Space, UNICODE_PROP_Bidi_Mirrored, UNICODE_PROP_Emoji, UNICODE_PROP_Emoji_Component, UNICODE_PROP_Emoji_Modifier, UNICODE_PROP_Emoji_Modifier_Base, UNICODE_PROP_Emoji_Presentation, UNICODE_PROP_Extended_Pictographic, UNICODE_PROP_Default_Ignorable_Code_Point, UNICODE_PROP_ID_Start, UNICODE_PROP_Case_Ignorable, UNICODE_PROP_ASCII, UNICODE_PROP_Alphabetic, UNICODE_PROP_Any, UNICODE_PROP_Assigned, UNICODE_PROP_Cased, UNICODE_PROP_Changes_When_Casefolded, UNICODE_PROP_Changes_When_Casemapped, UNICODE_PROP_Changes_When_Lowercased, UNICODE_PROP_Changes_When_NFKC_Casefolded, UNICODE_PROP_Changes_When_Titlecased, UNICODE_PROP_Changes_When_Uppercased, UNICODE_PROP_Grapheme_Base, UNICODE_PROP_Grapheme_Extend, UNICODE_PROP_ID_Continue, UNICODE_PROP_Lowercase, UNICODE_PROP_Math, UNICODE_PROP_Uppercase, UNICODE_PROP_XID_Continue, UNICODE_PROP_XID_Start, UNICODE_PROP_Cased1, UNICODE_PROP_COUNT, } UnicodePropertyEnum; static const char unicode_prop_name_table[] = "ASCII_Hex_Digit,AHex" "\0" "Bidi_Control,Bidi_C" "\0" "Dash" "\0" "Deprecated,Dep" "\0" "Diacritic,Dia" "\0" "Extender,Ext" "\0" "Hex_Digit,Hex" "\0" "IDS_Binary_Operator,IDSB" "\0" "IDS_Trinary_Operator,IDST" "\0" "Ideographic,Ideo" "\0" "Join_Control,Join_C" "\0" "Logical_Order_Exception,LOE" "\0" "Noncharacter_Code_Point,NChar" "\0" "Pattern_Syntax,Pat_Syn" "\0" "Pattern_White_Space,Pat_WS" "\0" "Quotation_Mark,QMark" "\0" "Radical" "\0" "Regional_Indicator,RI" "\0" "Sentence_Terminal,STerm" "\0" "Soft_Dotted,SD" "\0" "Terminal_Punctuation,Term" "\0" "Unified_Ideograph,UIdeo" "\0" "Variation_Selector,VS" "\0" "White_Space,space" "\0" "Bidi_Mirrored,Bidi_M" "\0" "Emoji" "\0" "Emoji_Component,EComp" "\0" "Emoji_Modifier,EMod" "\0" "Emoji_Modifier_Base,EBase" "\0" "Emoji_Presentation,EPres" "\0" "Extended_Pictographic,ExtPict" "\0" "Default_Ignorable_Code_Point,DI" "\0" "ID_Start,IDS" "\0" "Case_Ignorable,CI" "\0" "ASCII" "\0" "Alphabetic,Alpha" "\0" "Any" "\0" "Assigned" "\0" "Cased" "\0" "Changes_When_Casefolded,CWCF" "\0" "Changes_When_Casemapped,CWCM" "\0" "Changes_When_Lowercased,CWL" "\0" "Changes_When_NFKC_Casefolded,CWKCF" "\0" "Changes_When_Titlecased,CWT" "\0" "Changes_When_Uppercased,CWU" "\0" "Grapheme_Base,Gr_Base" "\0" "Grapheme_Extend,Gr_Ext" "\0" "ID_Continue,IDC" "\0" "Lowercase,Lower" "\0" "Math" "\0" "Uppercase,Upper" "\0" "XID_Continue,XIDC" "\0" "XID_Start,XIDS" "\0" ; static const uint8_t * const unicode_prop_table[] = { unicode_prop_Hyphen_table, unicode_prop_Other_Math_table, unicode_prop_Other_Alphabetic_table, unicode_prop_Other_Lowercase_table, unicode_prop_Other_Uppercase_table, unicode_prop_Other_Grapheme_Extend_table, unicode_prop_Other_Default_Ignorable_Code_Point_table, unicode_prop_Other_ID_Start_table, unicode_prop_Other_ID_Continue_table, unicode_prop_Prepended_Concatenation_Mark_table, unicode_prop_ID_Continue1_table, unicode_prop_XID_Start1_table, unicode_prop_XID_Continue1_table, unicode_prop_Changes_When_Titlecased1_table, unicode_prop_Changes_When_Casefolded1_table, unicode_prop_Changes_When_NFKC_Casefolded1_table, unicode_prop_ASCII_Hex_Digit_table, unicode_prop_Bidi_Control_table, unicode_prop_Dash_table, unicode_prop_Deprecated_table, unicode_prop_Diacritic_table, unicode_prop_Extender_table, unicode_prop_Hex_Digit_table, unicode_prop_IDS_Binary_Operator_table, unicode_prop_IDS_Trinary_Operator_table, unicode_prop_Ideographic_table, unicode_prop_Join_Control_table, unicode_prop_Logical_Order_Exception_table, unicode_prop_Noncharacter_Code_Point_table, unicode_prop_Pattern_Syntax_table, unicode_prop_Pattern_White_Space_table, unicode_prop_Quotation_Mark_table, unicode_prop_Radical_table, unicode_prop_Regional_Indicator_table, unicode_prop_Sentence_Terminal_table, unicode_prop_Soft_Dotted_table, unicode_prop_Terminal_Punctuation_table, unicode_prop_Unified_Ideograph_table, unicode_prop_Variation_Selector_table, unicode_prop_White_Space_table, unicode_prop_Bidi_Mirrored_table, unicode_prop_Emoji_table, unicode_prop_Emoji_Component_table, unicode_prop_Emoji_Modifier_table, unicode_prop_Emoji_Modifier_Base_table, unicode_prop_Emoji_Presentation_table, unicode_prop_Extended_Pictographic_table, unicode_prop_Default_Ignorable_Code_Point_table, unicode_prop_ID_Start_table, unicode_prop_Case_Ignorable_table, }; static const uint16_t unicode_prop_len_table[] = { countof(unicode_prop_Hyphen_table), countof(unicode_prop_Other_Math_table), countof(unicode_prop_Other_Alphabetic_table), countof(unicode_prop_Other_Lowercase_table), countof(unicode_prop_Other_Uppercase_table), countof(unicode_prop_Other_Grapheme_Extend_table), countof(unicode_prop_Other_Default_Ignorable_Code_Point_table), countof(unicode_prop_Other_ID_Start_table), countof(unicode_prop_Other_ID_Continue_table), countof(unicode_prop_Prepended_Concatenation_Mark_table), countof(unicode_prop_ID_Continue1_table), countof(unicode_prop_XID_Start1_table), countof(unicode_prop_XID_Continue1_table), countof(unicode_prop_Changes_When_Titlecased1_table), countof(unicode_prop_Changes_When_Casefolded1_table), countof(unicode_prop_Changes_When_NFKC_Casefolded1_table), countof(unicode_prop_ASCII_Hex_Digit_table), countof(unicode_prop_Bidi_Control_table), countof(unicode_prop_Dash_table), countof(unicode_prop_Deprecated_table), countof(unicode_prop_Diacritic_table), countof(unicode_prop_Extender_table), countof(unicode_prop_Hex_Digit_table), countof(unicode_prop_IDS_Binary_Operator_table), countof(unicode_prop_IDS_Trinary_Operator_table), countof(unicode_prop_Ideographic_table), countof(unicode_prop_Join_Control_table), countof(unicode_prop_Logical_Order_Exception_table), countof(unicode_prop_Noncharacter_Code_Point_table), countof(unicode_prop_Pattern_Syntax_table), countof(unicode_prop_Pattern_White_Space_table), countof(unicode_prop_Quotation_Mark_table), countof(unicode_prop_Radical_table), countof(unicode_prop_Regional_Indicator_table), countof(unicode_prop_Sentence_Terminal_table), countof(unicode_prop_Soft_Dotted_table), countof(unicode_prop_Terminal_Punctuation_table), countof(unicode_prop_Unified_Ideograph_table), countof(unicode_prop_Variation_Selector_table), countof(unicode_prop_White_Space_table), countof(unicode_prop_Bidi_Mirrored_table), countof(unicode_prop_Emoji_table), countof(unicode_prop_Emoji_Component_table), countof(unicode_prop_Emoji_Modifier_table), countof(unicode_prop_Emoji_Modifier_Base_table), countof(unicode_prop_Emoji_Presentation_table), countof(unicode_prop_Extended_Pictographic_table), countof(unicode_prop_Default_Ignorable_Code_Point_table), countof(unicode_prop_ID_Start_table), countof(unicode_prop_Case_Ignorable_table), }; #endif /* CONFIG_ALL_UNICODE */ ================================================ FILE: libunicode.c ================================================ /* * Unicode utilities * * Copyright (c) 2017-2018 Fabrice Bellard * * 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. */ #include #include #include #include #include #include "cutils.h" #include "libunicode.h" #include "libunicode-table.h" enum { RUN_TYPE_U, RUN_TYPE_L, RUN_TYPE_UF, RUN_TYPE_LF, RUN_TYPE_UL, RUN_TYPE_LSU, RUN_TYPE_U2L_399_EXT2, RUN_TYPE_UF_D20, RUN_TYPE_UF_D1_EXT, RUN_TYPE_U_EXT, RUN_TYPE_LF_EXT, RUN_TYPE_U_EXT2, RUN_TYPE_L_EXT2, RUN_TYPE_U_EXT3, }; /* conv_type: 0 = to upper 1 = to lower 2 = case folding (= to lower with modifications) */ int lre_case_conv(uint32_t *res, uint32_t c, int conv_type) { if (c < 128) { if (conv_type) { if (c >= 'A' && c <= 'Z') { c = c - 'A' + 'a'; } } else { if (c >= 'a' && c <= 'z') { c = c - 'a' + 'A'; } } } else { uint32_t v, code, data, type, len, a, is_lower; int idx, idx_min, idx_max; is_lower = (conv_type != 0); idx_min = 0; idx_max = countof(case_conv_table1) - 1; while (idx_min <= idx_max) { idx = (unsigned)(idx_max + idx_min) / 2; v = case_conv_table1[idx]; code = v >> (32 - 17); len = (v >> (32 - 17 - 7)) & 0x7f; if (c < code) { idx_max = idx - 1; } else if (c >= code + len) { idx_min = idx + 1; } else { type = (v >> (32 - 17 - 7 - 4)) & 0xf; data = ((v & 0xf) << 8) | case_conv_table2[idx]; switch(type) { case RUN_TYPE_U: case RUN_TYPE_L: case RUN_TYPE_UF: case RUN_TYPE_LF: if (conv_type == (type & 1) || (type >= RUN_TYPE_UF && conv_type == 2)) { c = c - code + (case_conv_table1[data] >> (32 - 17)); } break; case RUN_TYPE_UL: a = c - code; if ((a & 1) != (1 - is_lower)) break; c = (a ^ 1) + code; break; case RUN_TYPE_LSU: a = c - code; if (a == 1) { c += 2 * is_lower - 1; } else if (a == (1 - is_lower) * 2) { c += (2 * is_lower - 1) * 2; } break; case RUN_TYPE_U2L_399_EXT2: if (!is_lower) { res[0] = c - code + case_conv_ext[data >> 6]; res[1] = 0x399; return 2; } else { c = c - code + case_conv_ext[data & 0x3f]; } break; case RUN_TYPE_UF_D20: if (conv_type == 1) break; c = data + (conv_type == 2) * 0x20; break; case RUN_TYPE_UF_D1_EXT: if (conv_type == 1) break; c = case_conv_ext[data] + (conv_type == 2); break; case RUN_TYPE_U_EXT: case RUN_TYPE_LF_EXT: if (is_lower != (type - RUN_TYPE_U_EXT)) break; c = case_conv_ext[data]; break; case RUN_TYPE_U_EXT2: case RUN_TYPE_L_EXT2: if (conv_type != (type - RUN_TYPE_U_EXT2)) break; res[0] = c - code + case_conv_ext[data >> 6]; res[1] = case_conv_ext[data & 0x3f]; return 2; default: case RUN_TYPE_U_EXT3: if (conv_type != 0) break; res[0] = case_conv_ext[data >> 8]; res[1] = case_conv_ext[(data >> 4) & 0xf]; res[2] = case_conv_ext[data & 0xf]; return 3; } break; } } } res[0] = c; return 1; } static uint32_t get_le24(const uint8_t *ptr) { #if defined(__x86__) || defined(__x86_64__) return *(uint16_t *)ptr | (ptr[2] << 16); #else return ptr[0] | (ptr[1] << 8) | (ptr[2] << 16); #endif } #define UNICODE_INDEX_BLOCK_LEN 32 /* return -1 if not in table, otherwise the offset in the block */ static int get_index_pos(uint32_t *pcode, uint32_t c, const uint8_t *index_table, int index_table_len) { uint32_t code, v; int idx_min, idx_max, idx; idx_min = 0; v = get_le24(index_table); code = v & ((1 << 21) - 1); if (c < code) { *pcode = 0; return 0; } idx_max = index_table_len - 1; code = get_le24(index_table + idx_max * 3); if (c >= code) return -1; /* invariant: tab[idx_min] <= c < tab2[idx_max] */ while ((idx_max - idx_min) > 1) { idx = (idx_max + idx_min) / 2; v = get_le24(index_table + idx * 3); code = v & ((1 << 21) - 1); if (c < code) { idx_max = idx; } else { idx_min = idx; } } v = get_le24(index_table + idx_min * 3); *pcode = v & ((1 << 21) - 1); return (idx_min + 1) * UNICODE_INDEX_BLOCK_LEN + (v >> 21); } static BOOL lre_is_in_table(uint32_t c, const uint8_t *table, const uint8_t *index_table, int index_table_len) { uint32_t code, b, bit; int pos; const uint8_t *p; pos = get_index_pos(&code, c, index_table, index_table_len); if (pos < 0) return FALSE; /* outside the table */ p = table + pos; bit = 0; for(;;) { b = *p++; if (b < 64) { code += (b >> 3) + 1; if (c < code) return bit; bit ^= 1; code += (b & 7) + 1; } else if (b >= 0x80) { code += b - 0x80 + 1; } else if (b < 0x60) { code += (((b - 0x40) << 8) | p[0]) + 1; p++; } else { code += (((b - 0x60) << 16) | (p[0] << 8) | p[1]) + 1; p += 2; } if (c < code) return bit; bit ^= 1; } } BOOL lre_is_cased(uint32_t c) { uint32_t v, code, len; int idx, idx_min, idx_max; idx_min = 0; idx_max = countof(case_conv_table1) - 1; while (idx_min <= idx_max) { idx = (unsigned)(idx_max + idx_min) / 2; v = case_conv_table1[idx]; code = v >> (32 - 17); len = (v >> (32 - 17 - 7)) & 0x7f; if (c < code) { idx_max = idx - 1; } else if (c >= code + len) { idx_min = idx + 1; } else { return TRUE; } } return lre_is_in_table(c, unicode_prop_Cased1_table, unicode_prop_Cased1_index, sizeof(unicode_prop_Cased1_index) / 3); } BOOL lre_is_case_ignorable(uint32_t c) { return lre_is_in_table(c, unicode_prop_Case_Ignorable_table, unicode_prop_Case_Ignorable_index, sizeof(unicode_prop_Case_Ignorable_index) / 3); } /* character range */ static __maybe_unused void cr_dump(CharRange *cr) { int i; for(i = 0; i < cr->len; i++) printf("%d: 0x%04x\n", i, cr->points[i]); } static void *cr_default_realloc(void *opaque, void *ptr, size_t size) { return realloc(ptr, size); } void cr_init(CharRange *cr, void *mem_opaque, DynBufReallocFunc *realloc_func) { cr->len = cr->size = 0; cr->points = NULL; cr->mem_opaque = mem_opaque; cr->realloc_func = realloc_func ? realloc_func : cr_default_realloc; } void cr_free(CharRange *cr) { cr->realloc_func(cr->mem_opaque, cr->points, 0); } int cr_realloc(CharRange *cr, int size) { int new_size; uint32_t *new_buf; if (size > cr->size) { new_size = max_int(size, cr->size * 3 / 2); new_buf = cr->realloc_func(cr->mem_opaque, cr->points, new_size * sizeof(cr->points[0])); if (!new_buf) return -1; cr->points = new_buf; cr->size = new_size; } return 0; } int cr_copy(CharRange *cr, const CharRange *cr1) { if (cr_realloc(cr, cr1->len)) return -1; memcpy(cr->points, cr1->points, sizeof(cr->points[0]) * cr1->len); cr->len = cr1->len; return 0; } /* merge consecutive intervals and remove empty intervals */ static void cr_compress(CharRange *cr) { int i, j, k, len; uint32_t *pt; pt = cr->points; len = cr->len; i = 0; j = 0; k = 0; while ((i + 1) < len) { if (pt[i] == pt[i + 1]) { /* empty interval */ i += 2; } else { j = i; while ((j + 3) < len && pt[j + 1] == pt[j + 2]) j += 2; /* just copy */ pt[k] = pt[i]; pt[k + 1] = pt[j + 1]; k += 2; i = j + 2; } } cr->len = k; } /* union or intersection */ int cr_op(CharRange *cr, const uint32_t *a_pt, int a_len, const uint32_t *b_pt, int b_len, int op) { int a_idx, b_idx, is_in; uint32_t v; a_idx = 0; b_idx = 0; for(;;) { /* get one more point from a or b in increasing order */ if (a_idx < a_len && b_idx < b_len) { if (a_pt[a_idx] < b_pt[b_idx]) { goto a_add; } else if (a_pt[a_idx] == b_pt[b_idx]) { v = a_pt[a_idx]; a_idx++; b_idx++; } else { goto b_add; } } else if (a_idx < a_len) { a_add: v = a_pt[a_idx++]; } else if (b_idx < b_len) { b_add: v = b_pt[b_idx++]; } else { break; } /* add the point if the in/out status changes */ switch(op) { case CR_OP_UNION: is_in = (a_idx & 1) | (b_idx & 1); break; case CR_OP_INTER: is_in = (a_idx & 1) & (b_idx & 1); break; case CR_OP_XOR: is_in = (a_idx & 1) ^ (b_idx & 1); break; default: abort(); } if (is_in != (cr->len & 1)) { if (cr_add_point(cr, v)) return -1; } } cr_compress(cr); return 0; } int cr_union1(CharRange *cr, const uint32_t *b_pt, int b_len) { CharRange a = *cr; int ret; cr->len = 0; cr->size = 0; cr->points = NULL; ret = cr_op(cr, a.points, a.len, b_pt, b_len, CR_OP_UNION); cr_free(&a); return ret; } int cr_invert(CharRange *cr) { int len; len = cr->len; if (cr_realloc(cr, len + 2)) return -1; memmove(cr->points + 1, cr->points, len * sizeof(cr->points[0])); cr->points[0] = 0; cr->points[len + 1] = UINT32_MAX; cr->len = len + 2; cr_compress(cr); return 0; } #ifdef CONFIG_ALL_UNICODE BOOL lre_is_id_start(uint32_t c) { return lre_is_in_table(c, unicode_prop_ID_Start_table, unicode_prop_ID_Start_index, sizeof(unicode_prop_ID_Start_index) / 3); } BOOL lre_is_id_continue(uint32_t c) { return lre_is_id_start(c) || lre_is_in_table(c, unicode_prop_ID_Continue1_table, unicode_prop_ID_Continue1_index, sizeof(unicode_prop_ID_Continue1_index) / 3); } #define UNICODE_DECOMP_LEN_MAX 18 typedef enum { DECOMP_TYPE_C1, /* 16 bit char */ DECOMP_TYPE_L1, /* 16 bit char table */ DECOMP_TYPE_L2, DECOMP_TYPE_L3, DECOMP_TYPE_L4, DECOMP_TYPE_L5, /* XXX: not used */ DECOMP_TYPE_L6, /* XXX: could remove */ DECOMP_TYPE_L7, /* XXX: could remove */ DECOMP_TYPE_LL1, /* 18 bit char table */ DECOMP_TYPE_LL2, DECOMP_TYPE_S1, /* 8 bit char table */ DECOMP_TYPE_S2, DECOMP_TYPE_S3, DECOMP_TYPE_S4, DECOMP_TYPE_S5, DECOMP_TYPE_I1, /* increment 16 bit char value */ DECOMP_TYPE_I2_0, DECOMP_TYPE_I2_1, DECOMP_TYPE_I3_1, DECOMP_TYPE_I3_2, DECOMP_TYPE_I4_1, DECOMP_TYPE_I4_2, DECOMP_TYPE_B1, /* 16 bit base + 8 bit offset */ DECOMP_TYPE_B2, DECOMP_TYPE_B3, DECOMP_TYPE_B4, DECOMP_TYPE_B5, DECOMP_TYPE_B6, DECOMP_TYPE_B7, DECOMP_TYPE_B8, DECOMP_TYPE_B18, DECOMP_TYPE_LS2, DECOMP_TYPE_PAT3, DECOMP_TYPE_S2_UL, DECOMP_TYPE_LS2_UL, } DecompTypeEnum; static uint32_t unicode_get_short_code(uint32_t c) { static const uint16_t unicode_short_table[2] = { 0x2044, 0x2215 }; if (c < 0x80) return c; else if (c < 0x80 + 0x50) return c - 0x80 + 0x300; else return unicode_short_table[c - 0x80 - 0x50]; } static uint32_t unicode_get_lower_simple(uint32_t c) { if (c < 0x100 || (c >= 0x410 && c <= 0x42f)) c += 0x20; else c++; return c; } static uint16_t unicode_get16(const uint8_t *p) { return p[0] | (p[1] << 8); } static int unicode_decomp_entry(uint32_t *res, uint32_t c, int idx, uint32_t code, uint32_t len, uint32_t type) { uint32_t c1; int l, i, p; const uint8_t *d; if (type == DECOMP_TYPE_C1) { res[0] = unicode_decomp_table2[idx]; return 1; } else { d = unicode_decomp_data + unicode_decomp_table2[idx]; switch(type) { case DECOMP_TYPE_L1 ... DECOMP_TYPE_L7: l = type - DECOMP_TYPE_L1 + 1; d += (c - code) * l * 2; for(i = 0; i < l; i++) { if ((res[i] = unicode_get16(d + 2 * i)) == 0) return 0; } return l; case DECOMP_TYPE_LL1 ... DECOMP_TYPE_LL2: { uint32_t k, p; l = type - DECOMP_TYPE_LL1 + 1; k = (c - code) * l; p = len * l * 2; for(i = 0; i < l; i++) { c1 = unicode_get16(d + 2 * k) | (((d[p + (k / 4)] >> ((k % 4) * 2)) & 3) << 16); if (!c1) return 0; res[i] = c1; k++; } } return l; case DECOMP_TYPE_S1 ... DECOMP_TYPE_S5: l = type - DECOMP_TYPE_S1 + 1; d += (c - code) * l; for(i = 0; i < l; i++) { if ((res[i] = unicode_get_short_code(d[i])) == 0) return 0; } return l; case DECOMP_TYPE_I1: l = 1; p = 0; goto decomp_type_i; case DECOMP_TYPE_I2_0: case DECOMP_TYPE_I2_1: case DECOMP_TYPE_I3_1: case DECOMP_TYPE_I3_2: case DECOMP_TYPE_I4_1: case DECOMP_TYPE_I4_2: l = 2 + ((type - DECOMP_TYPE_I2_0) >> 1); p = ((type - DECOMP_TYPE_I2_0) & 1) + (l > 2); decomp_type_i: for(i = 0; i < l; i++) { c1 = unicode_get16(d + 2 * i); if (i == p) c1 += c - code; res[i] = c1; } return l; case DECOMP_TYPE_B18: l = 18; goto decomp_type_b; case DECOMP_TYPE_B1 ... DECOMP_TYPE_B8: l = type - DECOMP_TYPE_B1 + 1; decomp_type_b: { uint32_t c_min; c_min = unicode_get16(d); d += 2 + (c - code) * l; for(i = 0; i < l; i++) { c1 = d[i]; if (c1 == 0xff) c1 = 0x20; else c1 += c_min; res[i] = c1; } } return l; case DECOMP_TYPE_LS2: d += (c - code) * 3; if (!(res[0] = unicode_get16(d))) return 0; res[1] = unicode_get_short_code(d[2]); return 2; case DECOMP_TYPE_PAT3: res[0] = unicode_get16(d); res[2] = unicode_get16(d + 2); d += 4 + (c - code) * 2; res[1] = unicode_get16(d); return 3; case DECOMP_TYPE_S2_UL: case DECOMP_TYPE_LS2_UL: c1 = c - code; if (type == DECOMP_TYPE_S2_UL) { d += c1 & ~1; c = unicode_get_short_code(*d); d++; } else { d += (c1 >> 1) * 3; c = unicode_get16(d); d += 2; } if (c1 & 1) c = unicode_get_lower_simple(c); res[0] = c; res[1] = unicode_get_short_code(*d); return 2; } } return 0; } /* return the length of the decomposition (length <= UNICODE_DECOMP_LEN_MAX) or 0 if no decomposition */ static int unicode_decomp_char(uint32_t *res, uint32_t c, BOOL is_compat1) { uint32_t v, type, is_compat, code, len; int idx_min, idx_max, idx; idx_min = 0; idx_max = countof(unicode_decomp_table1) - 1; while (idx_min <= idx_max) { idx = (idx_max + idx_min) / 2; v = unicode_decomp_table1[idx]; code = v >> (32 - 18); len = (v >> (32 - 18 - 7)) & 0x7f; // printf("idx=%d code=%05x len=%d\n", idx, code, len); if (c < code) { idx_max = idx - 1; } else if (c >= code + len) { idx_min = idx + 1; } else { is_compat = v & 1; if (is_compat1 < is_compat) break; type = (v >> (32 - 18 - 7 - 6)) & 0x3f; return unicode_decomp_entry(res, c, idx, code, len, type); } } return 0; } /* return 0 if no pair found */ static int unicode_compose_pair(uint32_t c0, uint32_t c1) { uint32_t code, len, type, v, idx1, d_idx, d_offset, ch; int idx_min, idx_max, idx, d; uint32_t pair[2]; idx_min = 0; idx_max = countof(unicode_comp_table) - 1; while (idx_min <= idx_max) { idx = (idx_max + idx_min) / 2; idx1 = unicode_comp_table[idx]; /* idx1 represent an entry of the decomposition table */ d_idx = idx1 >> 6; d_offset = idx1 & 0x3f; v = unicode_decomp_table1[d_idx]; code = v >> (32 - 18); len = (v >> (32 - 18 - 7)) & 0x7f; type = (v >> (32 - 18 - 7 - 6)) & 0x3f; ch = code + d_offset; unicode_decomp_entry(pair, ch, d_idx, code, len, type); d = c0 - pair[0]; if (d == 0) d = c1 - pair[1]; if (d < 0) { idx_max = idx - 1; } else if (d > 0) { idx_min = idx + 1; } else { return ch; } } return 0; } /* return the combining class of character c (between 0 and 255) */ static int unicode_get_cc(uint32_t c) { uint32_t code, n, type, cc, c1, b; int pos; const uint8_t *p; pos = get_index_pos(&code, c, unicode_cc_index, sizeof(unicode_cc_index) / 3); if (pos < 0) return 0; p = unicode_cc_table + pos; for(;;) { b = *p++; type = b >> 6; n = b & 0x3f; if (n < 48) { } else if (n < 56) { n = (n - 48) << 8; n |= *p++; n += 48; } else { n = (n - 56) << 8; n |= *p++ << 8; n |= *p++; n += 48 + (1 << 11); } if (type <= 1) p++; c1 = code + n + 1; if (c < c1) { switch(type) { case 0: cc = p[-1]; break; case 1: cc = p[-1] + c - code; break; case 2: cc = 0; break; default: case 3: cc = 230; break; } return cc; } code = c1; } } static void sort_cc(int *buf, int len) { int i, j, k, cc, cc1, start, ch1; for(i = 0; i < len; i++) { cc = unicode_get_cc(buf[i]); if (cc != 0) { start = i; j = i + 1; while (j < len) { ch1 = buf[j]; cc1 = unicode_get_cc(ch1); if (cc1 == 0) break; k = j - 1; while (k >= start) { if (unicode_get_cc(buf[k]) <= cc1) break; buf[k + 1] = buf[k]; k--; } buf[k + 1] = ch1; j++; } #if 0 printf("cc:"); for(k = start; k < j; k++) { printf(" %3d", unicode_get_cc(buf[k])); } printf("\n"); #endif i = j; } } } static void to_nfd_rec(DynBuf *dbuf, const int *src, int src_len, int is_compat) { uint32_t c, v; int i, l; uint32_t res[UNICODE_DECOMP_LEN_MAX]; for(i = 0; i < src_len; i++) { c = src[i]; if (c >= 0xac00 && c < 0xd7a4) { /* Hangul decomposition */ c -= 0xac00; dbuf_put_u32(dbuf, 0x1100 + c / 588); dbuf_put_u32(dbuf, 0x1161 + (c % 588) / 28); v = c % 28; if (v != 0) dbuf_put_u32(dbuf, 0x11a7 + v); } else { l = unicode_decomp_char(res, c, is_compat); if (l) { to_nfd_rec(dbuf, (int *)res, l, is_compat); } else { dbuf_put_u32(dbuf, c); } } } } /* return 0 if not found */ static int compose_pair(uint32_t c0, uint32_t c1) { /* Hangul composition */ if (c0 >= 0x1100 && c0 < 0x1100 + 19 && c1 >= 0x1161 && c1 < 0x1161 + 21) { return 0xac00 + (c0 - 0x1100) * 588 + (c1 - 0x1161) * 28; } else if (c0 >= 0xac00 && c0 < 0xac00 + 11172 && (c0 - 0xac00) % 28 == 0 && c1 >= 0x11a7 && c1 < 0x11a7 + 28) { return c0 + c1 - 0x11a7; } else { return unicode_compose_pair(c0, c1); } } int unicode_normalize(uint32_t **pdst, const uint32_t *src, int src_len, UnicodeNormalizationEnum n_type, void *opaque, DynBufReallocFunc *realloc_func) { int *buf, buf_len, i, p, starter_pos, cc, last_cc, out_len; BOOL is_compat; DynBuf dbuf_s, *dbuf = &dbuf_s; is_compat = n_type >> 1; dbuf_init2(dbuf, opaque, realloc_func); if (dbuf_realloc(dbuf, sizeof(int) * src_len)) goto fail; /* common case: latin1 is unaffected by NFC */ if (n_type == UNICODE_NFC) { for(i = 0; i < src_len; i++) { if (src[i] >= 0x100) goto not_latin1; } buf = (int *)dbuf->buf; memcpy(buf, src, src_len * sizeof(int)); *pdst = (uint32_t *)buf; return src_len; not_latin1: ; } to_nfd_rec(dbuf, (const int *)src, src_len, is_compat); if (dbuf_error(dbuf)) { fail: *pdst = NULL; return -1; } buf = (int *)dbuf->buf; buf_len = dbuf->size / sizeof(int); sort_cc(buf, buf_len); if (buf_len <= 1 || (n_type & 1) != 0) { /* NFD / NFKD */ *pdst = (uint32_t *)buf; return buf_len; } i = 1; out_len = 1; while (i < buf_len) { /* find the starter character and test if it is blocked from the character at 'i' */ last_cc = unicode_get_cc(buf[i]); starter_pos = out_len - 1; while (starter_pos >= 0) { cc = unicode_get_cc(buf[starter_pos]); if (cc == 0) break; if (cc >= last_cc) goto next; last_cc = 256; starter_pos--; } if (starter_pos >= 0 && (p = compose_pair(buf[starter_pos], buf[i])) != 0) { buf[starter_pos] = p; i++; } else { next: buf[out_len++] = buf[i++]; } } *pdst = (uint32_t *)buf; return out_len; } /* char ranges for various unicode properties */ static int unicode_find_name(const char *name_table, const char *name) { const char *p, *r; int pos; size_t name_len, len; p = name_table; pos = 0; name_len = strlen(name); while (*p) { for(;;) { r = strchr(p, ','); if (!r) len = strlen(p); else len = r - p; if (len == name_len && !memcmp(p, name, name_len)) return pos; p += len + 1; if (!r) break; } pos++; } return -1; } /* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2 if not found */ int unicode_script(CharRange *cr, const char *script_name, BOOL is_ext) { int script_idx; const uint8_t *p, *p_end; uint32_t c, c1, b, n, v, v_len, i, type; CharRange cr1_s, *cr1; CharRange cr2_s, *cr2 = &cr2_s; BOOL is_common; script_idx = unicode_find_name(unicode_script_name_table, script_name); if (script_idx < 0) return -2; /* Note: we remove the "Unknown" Script */ script_idx += UNICODE_SCRIPT_Unknown + 1; is_common = (script_idx == UNICODE_SCRIPT_Common || script_idx == UNICODE_SCRIPT_Inherited); if (is_ext) { cr1 = &cr1_s; cr_init(cr1, cr->mem_opaque, cr->realloc_func); cr_init(cr2, cr->mem_opaque, cr->realloc_func); } else { cr1 = cr; } p = unicode_script_table; p_end = unicode_script_table + countof(unicode_script_table); c = 0; while (p < p_end) { b = *p++; type = b >> 7; n = b & 0x7f; if (n < 96) { } else if (n < 112) { n = (n - 96) << 8; n |= *p++; n += 96; } else { n = (n - 112) << 16; n |= *p++ << 8; n |= *p++; n += 96 + (1 << 12); } if (type == 0) v = 0; else v = *p++; c1 = c + n + 1; if (v == script_idx) { if (cr_add_interval(cr1, c, c1)) goto fail; } c = c1; } if (is_ext) { /* add the script extensions */ p = unicode_script_ext_table; p_end = unicode_script_ext_table + countof(unicode_script_ext_table); c = 0; while (p < p_end) { b = *p++; if (b < 128) { n = b; } else if (b < 128 + 64) { n = (b - 128) << 8; n |= *p++; n += 128; } else { n = (b - 128 - 64) << 16; n |= *p++ << 8; n |= *p++; n += 128 + (1 << 14); } c1 = c + n + 1; v_len = *p++; if (is_common) { if (v_len != 0) { if (cr_add_interval(cr2, c, c1)) goto fail; } } else { for(i = 0; i < v_len; i++) { if (p[i] == script_idx) { if (cr_add_interval(cr2, c, c1)) goto fail; break; } } } p += v_len; c = c1; } if (is_common) { /* remove all the characters with script extensions */ if (cr_invert(cr2)) goto fail; if (cr_op(cr, cr1->points, cr1->len, cr2->points, cr2->len, CR_OP_INTER)) goto fail; } else { if (cr_op(cr, cr1->points, cr1->len, cr2->points, cr2->len, CR_OP_UNION)) goto fail; } cr_free(cr1); cr_free(cr2); } return 0; fail: if (is_ext) { cr_free(cr1); cr_free(cr2); } goto fail; } #define M(id) (1U << UNICODE_GC_ ## id) static int unicode_general_category1(CharRange *cr, uint32_t gc_mask) { const uint8_t *p, *p_end; uint32_t c, c0, b, n, v; p = unicode_gc_table; p_end = unicode_gc_table + countof(unicode_gc_table); c = 0; while (p < p_end) { b = *p++; n = b >> 5; v = b & 0x1f; if (n == 7) { n = *p++; if (n < 128) { n += 7; } else if (n < 128 + 64) { n = (n - 128) << 8; n |= *p++; n += 7 + 128; } else { n = (n - 128 - 64) << 16; n |= *p++ << 8; n |= *p++; n += 7 + 128 + (1 << 14); } } c0 = c; c += n + 1; if (v == 31) { /* run of Lu / Ll */ b = gc_mask & (M(Lu) | M(Ll)); if (b != 0) { if (b == (M(Lu) | M(Ll))) { goto add_range; } else { c0 += ((gc_mask & M(Ll)) != 0); for(; c0 < c; c0 += 2) { if (cr_add_interval(cr, c0, c0 + 1)) return -1; } } } } else if ((gc_mask >> v) & 1) { add_range: if (cr_add_interval(cr, c0, c)) return -1; } } return 0; } static int unicode_prop1(CharRange *cr, int prop_idx) { const uint8_t *p, *p_end; uint32_t c, c0, b, bit; p = unicode_prop_table[prop_idx]; p_end = p + unicode_prop_len_table[prop_idx]; c = 0; bit = 0; while (p < p_end) { c0 = c; b = *p++; if (b < 64) { c += (b >> 3) + 1; if (bit) { if (cr_add_interval(cr, c0, c)) return -1; } bit ^= 1; c0 = c; c += (b & 7) + 1; } else if (b >= 0x80) { c += b - 0x80 + 1; } else if (b < 0x60) { c += (((b - 0x40) << 8) | p[0]) + 1; p++; } else { c += (((b - 0x60) << 16) | (p[0] << 8) | p[1]) + 1; p += 2; } if (bit) { if (cr_add_interval(cr, c0, c)) return -1; } bit ^= 1; } return 0; } #define CASE_U (1 << 0) #define CASE_L (1 << 1) #define CASE_F (1 << 2) /* use the case conversion table to generate range of characters. CASE_U: set char if modified by uppercasing, CASE_L: set char if modified by lowercasing, CASE_F: set char if modified by case folding, */ static int unicode_case1(CharRange *cr, int case_mask) { #define MR(x) (1 << RUN_TYPE_ ## x) const uint32_t tab_run_mask[3] = { MR(U) | MR(UF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(UF_D20) | MR(UF_D1_EXT) | MR(U_EXT) | MR(U_EXT2) | MR(U_EXT3), MR(L) | MR(LF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(LF_EXT) | MR(L_EXT2), MR(UF) | MR(LF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(LF_EXT) | MR(UF_D20) | MR(UF_D1_EXT) | MR(LF_EXT), }; #undef MR uint32_t mask, v, code, type, len, i, idx; if (case_mask == 0) return 0; mask = 0; for(i = 0; i < 3; i++) { if ((case_mask >> i) & 1) mask |= tab_run_mask[i]; } for(idx = 0; idx < countof(case_conv_table1); idx++) { v = case_conv_table1[idx]; type = (v >> (32 - 17 - 7 - 4)) & 0xf; code = v >> (32 - 17); len = (v >> (32 - 17 - 7)) & 0x7f; if ((mask >> type) & 1) { // printf("%d: type=%d %04x %04x\n", idx, type, code, code + len - 1); switch(type) { case RUN_TYPE_UL: if ((case_mask & CASE_U) && (case_mask & (CASE_L | CASE_F))) goto def_case; code += ((case_mask & CASE_U) != 0); for(i = 0; i < len; i += 2) { if (cr_add_interval(cr, code + i, code + i + 1)) return -1; } break; case RUN_TYPE_LSU: if ((case_mask & CASE_U) && (case_mask & (CASE_L | CASE_F))) goto def_case; if (!(case_mask & CASE_U)) { if (cr_add_interval(cr, code, code + 1)) return -1; } if (cr_add_interval(cr, code + 1, code + 2)) return -1; if (case_mask & CASE_U) { if (cr_add_interval(cr, code + 2, code + 3)) return -1; } break; default: def_case: if (cr_add_interval(cr, code, code + len)) return -1; break; } } } return 0; } typedef enum { POP_GC, POP_PROP, POP_CASE, POP_UNION, POP_INTER, POP_XOR, POP_INVERT, POP_END, } PropOPEnum; #define POP_STACK_LEN_MAX 4 static int unicode_prop_ops(CharRange *cr, ...) { va_list ap; CharRange stack[POP_STACK_LEN_MAX]; int stack_len, op, ret, i; uint32_t a; va_start(ap, cr); stack_len = 0; for(;;) { op = va_arg(ap, int); switch(op) { case POP_GC: assert(stack_len < POP_STACK_LEN_MAX); a = va_arg(ap, int); cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func); if (unicode_general_category1(&stack[stack_len - 1], a)) goto fail; break; case POP_PROP: assert(stack_len < POP_STACK_LEN_MAX); a = va_arg(ap, int); cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func); if (unicode_prop1(&stack[stack_len - 1], a)) goto fail; break; case POP_CASE: assert(stack_len < POP_STACK_LEN_MAX); a = va_arg(ap, int); cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func); if (unicode_case1(&stack[stack_len - 1], a)) goto fail; break; case POP_UNION: case POP_INTER: case POP_XOR: { CharRange *cr1, *cr2, *cr3; assert(stack_len >= 2); assert(stack_len < POP_STACK_LEN_MAX); cr1 = &stack[stack_len - 2]; cr2 = &stack[stack_len - 1]; cr3 = &stack[stack_len++]; cr_init(cr3, cr->mem_opaque, cr->realloc_func); if (cr_op(cr3, cr1->points, cr1->len, cr2->points, cr2->len, op - POP_UNION + CR_OP_UNION)) goto fail; cr_free(cr1); cr_free(cr2); *cr1 = *cr3; stack_len -= 2; } break; case POP_INVERT: assert(stack_len >= 1); if (cr_invert(&stack[stack_len - 1])) goto fail; break; case POP_END: goto done; default: abort(); } } done: assert(stack_len == 1); ret = cr_copy(cr, &stack[0]); cr_free(&stack[0]); return ret; fail: for(i = 0; i < stack_len; i++) cr_free(&stack[i]); return -1; } static const uint32_t unicode_gc_mask_table[] = { M(Lu) | M(Ll) | M(Lt), /* LC */ M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo), /* L */ M(Mn) | M(Mc) | M(Me), /* M */ M(Nd) | M(Nl) | M(No), /* N */ M(Sm) | M(Sc) | M(Sk) | M(So), /* S */ M(Pc) | M(Pd) | M(Ps) | M(Pe) | M(Pi) | M(Pf) | M(Po), /* P */ M(Zs) | M(Zl) | M(Zp), /* Z */ M(Cc) | M(Cf) | M(Cs) | M(Co) | M(Cn), /* C */ }; /* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2 if not found */ int unicode_general_category(CharRange *cr, const char *gc_name) { int gc_idx; uint32_t gc_mask; gc_idx = unicode_find_name(unicode_gc_name_table, gc_name); if (gc_idx < 0) return -2; if (gc_idx <= UNICODE_GC_Co) { gc_mask = (uint64_t)1 << gc_idx; } else { gc_mask = unicode_gc_mask_table[gc_idx - UNICODE_GC_LC]; } return unicode_general_category1(cr, gc_mask); } /* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2 if not found */ int unicode_prop(CharRange *cr, const char *prop_name) { int prop_idx, ret; prop_idx = unicode_find_name(unicode_prop_name_table, prop_name); if (prop_idx < 0) return -2; prop_idx += UNICODE_PROP_ASCII_Hex_Digit; ret = 0; switch(prop_idx) { case UNICODE_PROP_ASCII: if (cr_add_interval(cr, 0x00, 0x7f + 1)) return -1; break; case UNICODE_PROP_Any: if (cr_add_interval(cr, 0x00000, 0x10ffff + 1)) return -1; break; case UNICODE_PROP_Assigned: ret = unicode_prop_ops(cr, POP_GC, M(Cn), POP_INVERT, POP_END); break; case UNICODE_PROP_Math: ret = unicode_prop_ops(cr, POP_GC, M(Sm), POP_PROP, UNICODE_PROP_Other_Math, POP_UNION, POP_END); break; case UNICODE_PROP_Lowercase: ret = unicode_prop_ops(cr, POP_GC, M(Ll), POP_PROP, UNICODE_PROP_Other_Lowercase, POP_UNION, POP_END); break; case UNICODE_PROP_Uppercase: ret = unicode_prop_ops(cr, POP_GC, M(Lu), POP_PROP, UNICODE_PROP_Other_Uppercase, POP_UNION, POP_END); break; case UNICODE_PROP_Cased: ret = unicode_prop_ops(cr, POP_GC, M(Lu) | M(Ll) | M(Lt), POP_PROP, UNICODE_PROP_Other_Uppercase, POP_UNION, POP_PROP, UNICODE_PROP_Other_Lowercase, POP_UNION, POP_END); break; case UNICODE_PROP_Alphabetic: ret = unicode_prop_ops(cr, POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl), POP_PROP, UNICODE_PROP_Other_Uppercase, POP_UNION, POP_PROP, UNICODE_PROP_Other_Lowercase, POP_UNION, POP_PROP, UNICODE_PROP_Other_Alphabetic, POP_UNION, POP_END); break; case UNICODE_PROP_Grapheme_Base: ret = unicode_prop_ops(cr, POP_GC, M(Cc) | M(Cf) | M(Cs) | M(Co) | M(Cn) | M(Zl) | M(Zp) | M(Me) | M(Mn), POP_PROP, UNICODE_PROP_Other_Grapheme_Extend, POP_UNION, POP_INVERT, POP_END); break; case UNICODE_PROP_Grapheme_Extend: ret = unicode_prop_ops(cr, POP_GC, M(Me) | M(Mn), POP_PROP, UNICODE_PROP_Other_Grapheme_Extend, POP_UNION, POP_END); break; case UNICODE_PROP_XID_Start: ret = unicode_prop_ops(cr, POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl), POP_PROP, UNICODE_PROP_Other_ID_Start, POP_UNION, POP_PROP, UNICODE_PROP_Pattern_Syntax, POP_PROP, UNICODE_PROP_Pattern_White_Space, POP_UNION, POP_PROP, UNICODE_PROP_XID_Start1, POP_UNION, POP_INVERT, POP_INTER, POP_END); break; case UNICODE_PROP_XID_Continue: ret = unicode_prop_ops(cr, POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl) | M(Mn) | M(Mc) | M(Nd) | M(Pc), POP_PROP, UNICODE_PROP_Other_ID_Start, POP_UNION, POP_PROP, UNICODE_PROP_Other_ID_Continue, POP_UNION, POP_PROP, UNICODE_PROP_Pattern_Syntax, POP_PROP, UNICODE_PROP_Pattern_White_Space, POP_UNION, POP_PROP, UNICODE_PROP_XID_Continue1, POP_UNION, POP_INVERT, POP_INTER, POP_END); break; case UNICODE_PROP_Changes_When_Uppercased: ret = unicode_case1(cr, CASE_U); break; case UNICODE_PROP_Changes_When_Lowercased: ret = unicode_case1(cr, CASE_L); break; case UNICODE_PROP_Changes_When_Casemapped: ret = unicode_case1(cr, CASE_U | CASE_L | CASE_F); break; case UNICODE_PROP_Changes_When_Titlecased: ret = unicode_prop_ops(cr, POP_CASE, CASE_U, POP_PROP, UNICODE_PROP_Changes_When_Titlecased1, POP_XOR, POP_END); break; case UNICODE_PROP_Changes_When_Casefolded: ret = unicode_prop_ops(cr, POP_CASE, CASE_F, POP_PROP, UNICODE_PROP_Changes_When_Casefolded1, POP_XOR, POP_END); break; case UNICODE_PROP_Changes_When_NFKC_Casefolded: ret = unicode_prop_ops(cr, POP_CASE, CASE_F, POP_PROP, UNICODE_PROP_Changes_When_NFKC_Casefolded1, POP_XOR, POP_END); break; #if 0 case UNICODE_PROP_ID_Start: ret = unicode_prop_ops(cr, POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl), POP_PROP, UNICODE_PROP_Other_ID_Start, POP_UNION, POP_PROP, UNICODE_PROP_Pattern_Syntax, POP_PROP, UNICODE_PROP_Pattern_White_Space, POP_UNION, POP_INVERT, POP_INTER, POP_END); break; case UNICODE_PROP_ID_Continue: ret = unicode_prop_ops(cr, POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl) | M(Mn) | M(Mc) | M(Nd) | M(Pc), POP_PROP, UNICODE_PROP_Other_ID_Start, POP_UNION, POP_PROP, UNICODE_PROP_Other_ID_Continue, POP_UNION, POP_PROP, UNICODE_PROP_Pattern_Syntax, POP_PROP, UNICODE_PROP_Pattern_White_Space, POP_UNION, POP_INVERT, POP_INTER, POP_END); break; case UNICODE_PROP_Case_Ignorable: ret = unicode_prop_ops(cr, POP_GC, M(Mn) | M(Cf) | M(Lm) | M(Sk), POP_PROP, UNICODE_PROP_Case_Ignorable1, POP_XOR, POP_END); break; #else /* we use the existing tables */ case UNICODE_PROP_ID_Continue: ret = unicode_prop_ops(cr, POP_PROP, UNICODE_PROP_ID_Start, POP_PROP, UNICODE_PROP_ID_Continue1, POP_XOR, POP_END); break; #endif default: if (prop_idx >= countof(unicode_prop_table)) return -2; ret = unicode_prop1(cr, prop_idx); break; } return ret; } #endif /* CONFIG_ALL_UNICODE */ ================================================ FILE: libunicode.h ================================================ /* * Unicode utilities * * Copyright (c) 2017-2018 Fabrice Bellard * * 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. */ #ifndef LIBUNICODE_H #define LIBUNICODE_H #include #define LRE_BOOL int /* for documentation purposes */ /* define it to include all the unicode tables (40KB larger) */ #define CONFIG_ALL_UNICODE #define LRE_CC_RES_LEN_MAX 3 typedef enum { UNICODE_NFC, UNICODE_NFD, UNICODE_NFKC, UNICODE_NFKD, } UnicodeNormalizationEnum; int lre_case_conv(uint32_t *res, uint32_t c, int conv_type); LRE_BOOL lre_is_cased(uint32_t c); LRE_BOOL lre_is_case_ignorable(uint32_t c); /* char ranges */ typedef struct { int len; /* in points, always even */ int size; uint32_t *points; /* points sorted by increasing value */ void *mem_opaque; void *(*realloc_func)(void *opaque, void *ptr, size_t size); } CharRange; typedef enum { CR_OP_UNION, CR_OP_INTER, CR_OP_XOR, } CharRangeOpEnum; void cr_init(CharRange *cr, void *mem_opaque, void *(*realloc_func)(void *opaque, void *ptr, size_t size)); void cr_free(CharRange *cr); int cr_realloc(CharRange *cr, int size); int cr_copy(CharRange *cr, const CharRange *cr1); static inline int cr_add_point(CharRange *cr, uint32_t v) { if (cr->len >= cr->size) { if (cr_realloc(cr, cr->len + 1)) return -1; } cr->points[cr->len++] = v; return 0; } static inline int cr_add_interval(CharRange *cr, uint32_t c1, uint32_t c2) { if ((cr->len + 2) > cr->size) { if (cr_realloc(cr, cr->len + 2)) return -1; } cr->points[cr->len++] = c1; cr->points[cr->len++] = c2; return 0; } int cr_union1(CharRange *cr, const uint32_t *b_pt, int b_len); static inline int cr_union_interval(CharRange *cr, uint32_t c1, uint32_t c2) { uint32_t b_pt[2]; b_pt[0] = c1; b_pt[1] = c2 + 1; return cr_union1(cr, b_pt, 2); } int cr_op(CharRange *cr, const uint32_t *a_pt, int a_len, const uint32_t *b_pt, int b_len, int op); int cr_invert(CharRange *cr); #ifdef CONFIG_ALL_UNICODE LRE_BOOL lre_is_id_start(uint32_t c); LRE_BOOL lre_is_id_continue(uint32_t c); int unicode_normalize(uint32_t **pdst, const uint32_t *src, int src_len, UnicodeNormalizationEnum n_type, void *opaque, void *(*realloc_func)(void *opaque, void *ptr, size_t size)); /* Unicode character range functions */ int unicode_script(CharRange *cr, const char *script_name, LRE_BOOL is_ext); int unicode_general_category(CharRange *cr, const char *gc_name); int unicode_prop(CharRange *cr, const char *prop_name); #endif /* CONFIG_ALL_UNICODE */ #undef LRE_BOOL #endif /* LIBUNICODE_H */ ================================================ FILE: list.h ================================================ /* * Linux klist like system * * Copyright (c) 2016-2017 Fabrice Bellard * * 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. */ #ifndef LIST_H #define LIST_H #ifndef NULL #include #endif struct list_head { struct list_head *prev; struct list_head *next; }; #define LIST_HEAD_INIT(el) { &(el), &(el) } /* return the pointer of type 'type *' containing 'el' as field 'member' */ #define list_entry(el, type, member) \ ((type *)((uint8_t *)(el) - offsetof(type, member))) static inline void init_list_head(struct list_head *head) { head->prev = head; head->next = head; } /* insert 'el' between 'prev' and 'next' */ static inline void __list_add(struct list_head *el, struct list_head *prev, struct list_head *next) { prev->next = el; el->prev = prev; el->next = next; next->prev = el; } /* add 'el' at the head of the list 'head' (= after element head) */ static inline void list_add(struct list_head *el, struct list_head *head) { __list_add(el, head, head->next); } /* add 'el' at the end of the list 'head' (= before element head) */ static inline void list_add_tail(struct list_head *el, struct list_head *head) { __list_add(el, head->prev, head); } static inline void list_del(struct list_head *el) { struct list_head *prev, *next; prev = el->prev; next = el->next; prev->next = next; next->prev = prev; el->prev = NULL; /* fail safe */ el->next = NULL; /* fail safe */ } static inline int list_empty(struct list_head *el) { return el->next == el; } #define list_for_each(el, head) \ for(el = (head)->next; el != (head); el = el->next) #define list_for_each_safe(el, el1, head) \ for(el = (head)->next, el1 = el->next; el != (head); \ el = el1, el1 = el->next) #define list_for_each_prev(el, head) \ for(el = (head)->prev; el != (head); el = el->prev) #define list_for_each_prev_safe(el, el1, head) \ for(el = (head)->prev, el1 = el->prev; el != (head); \ el = el1, el1 = el->prev) #endif /* LIST_H */ ================================================ FILE: quickjs-atom.h ================================================ /* * QuickJS atom definitions * * Copyright (c) 2017-2018 Fabrice Bellard * Copyright (c) 2017-2018 Charlie Gordon * * 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. */ #ifdef DEF /* Note: first atoms are considered as keywords in the parser */ DEF(null, "null") /* must be first */ DEF(false, "false") DEF(true, "true") DEF(if, "if") DEF(else, "else") DEF(return, "return") DEF(var, "var") DEF(this, "this") DEF(delete, "delete") DEF(void, "void") DEF(typeof, "typeof") DEF(new, "new") DEF(in, "in") DEF(instanceof, "instanceof") DEF(do, "do") DEF(while, "while") DEF(for, "for") DEF(break, "break") DEF(continue, "continue") DEF(switch, "switch") DEF(case, "case") DEF(default, "default") DEF(throw, "throw") DEF(try, "try") DEF(catch, "catch") DEF(finally, "finally") DEF(function, "function") DEF(debugger, "debugger") DEF(with, "with") /* FutureReservedWord */ DEF(class, "class") DEF(const, "const") DEF(enum, "enum") DEF(export, "export") DEF(extends, "extends") DEF(import, "import") DEF(super, "super") /* FutureReservedWords when parsing strict mode code */ DEF(implements, "implements") DEF(interface, "interface") DEF(let, "let") DEF(package, "package") DEF(private, "private") DEF(protected, "protected") DEF(public, "public") DEF(static, "static") DEF(yield, "yield") DEF(await, "await") /* empty string */ DEF(empty_string, "") /* identifiers */ DEF(length, "length") DEF(fileName, "fileName") DEF(lineNumber, "lineNumber") DEF(message, "message") DEF(errors, "errors") DEF(stack, "stack") DEF(name, "name") DEF(toString, "toString") DEF(toLocaleString, "toLocaleString") DEF(valueOf, "valueOf") DEF(eval, "eval") DEF(prototype, "prototype") DEF(constructor, "constructor") DEF(configurable, "configurable") DEF(writable, "writable") DEF(enumerable, "enumerable") DEF(value, "value") DEF(get, "get") DEF(set, "set") DEF(of, "of") DEF(__proto__, "__proto__") DEF(undefined, "undefined") DEF(number, "number") DEF(boolean, "boolean") DEF(string, "string") DEF(object, "object") DEF(symbol, "symbol") DEF(integer, "integer") DEF(unknown, "unknown") DEF(arguments, "arguments") DEF(callee, "callee") DEF(caller, "caller") DEF(_eval_, "") DEF(_ret_, "") DEF(_var_, "") DEF(_with_, "") DEF(lastIndex, "lastIndex") DEF(target, "target") DEF(index, "index") DEF(input, "input") DEF(defineProperties, "defineProperties") DEF(apply, "apply") DEF(join, "join") DEF(concat, "concat") DEF(split, "split") DEF(construct, "construct") DEF(getPrototypeOf, "getPrototypeOf") DEF(setPrototypeOf, "setPrototypeOf") DEF(isExtensible, "isExtensible") DEF(preventExtensions, "preventExtensions") DEF(has, "has") DEF(deleteProperty, "deleteProperty") DEF(defineProperty, "defineProperty") DEF(getOwnPropertyDescriptor, "getOwnPropertyDescriptor") DEF(ownKeys, "ownKeys") DEF(add, "add") DEF(done, "done") DEF(next, "next") DEF(values, "values") DEF(source, "source") DEF(flags, "flags") DEF(global, "global") DEF(unicode, "unicode") DEF(raw, "raw") DEF(new_target, "new.target") DEF(this_active_func, "this.active_func") DEF(home_object, "") DEF(computed_field, "") DEF(static_computed_field, "") /* must come after computed_fields */ DEF(class_fields_init, "") DEF(brand, "") DEF(hash_constructor, "#constructor") DEF(as, "as") DEF(from, "from") DEF(meta, "meta") DEF(_default_, "*default*") DEF(_star_, "*") DEF(Module, "Module") DEF(then, "then") DEF(resolve, "resolve") DEF(reject, "reject") DEF(promise, "promise") DEF(proxy, "proxy") DEF(revoke, "revoke") DEF(async, "async") DEF(exec, "exec") DEF(groups, "groups") DEF(status, "status") DEF(reason, "reason") DEF(globalThis, "globalThis") #ifdef CONFIG_BIGNUM DEF(bigint, "bigint") DEF(bigfloat, "bigfloat") DEF(bigdecimal, "bigdecimal") DEF(roundingMode, "roundingMode") DEF(maximumSignificantDigits, "maximumSignificantDigits") DEF(maximumFractionDigits, "maximumFractionDigits") #endif #ifdef CONFIG_ATOMICS DEF(not_equal, "not-equal") DEF(timed_out, "timed-out") DEF(ok, "ok") #endif DEF(toJSON, "toJSON") /* class names */ DEF(Object, "Object") DEF(Array, "Array") DEF(Error, "Error") DEF(Number, "Number") DEF(String, "String") DEF(Boolean, "Boolean") DEF(Symbol, "Symbol") DEF(Arguments, "Arguments") DEF(Math, "Math") DEF(JSON, "JSON") DEF(Date, "Date") DEF(Function, "Function") DEF(GeneratorFunction, "GeneratorFunction") DEF(ForInIterator, "ForInIterator") DEF(RegExp, "RegExp") DEF(ArrayBuffer, "ArrayBuffer") DEF(SharedArrayBuffer, "SharedArrayBuffer") /* must keep same order as class IDs for typed arrays */ DEF(Uint8ClampedArray, "Uint8ClampedArray") DEF(Int8Array, "Int8Array") DEF(Uint8Array, "Uint8Array") DEF(Int16Array, "Int16Array") DEF(Uint16Array, "Uint16Array") DEF(Int32Array, "Int32Array") DEF(Uint32Array, "Uint32Array") #ifdef CONFIG_BIGNUM DEF(BigInt64Array, "BigInt64Array") DEF(BigUint64Array, "BigUint64Array") #endif DEF(Float32Array, "Float32Array") DEF(Float64Array, "Float64Array") DEF(DataView, "DataView") #ifdef CONFIG_BIGNUM DEF(BigInt, "BigInt") DEF(BigFloat, "BigFloat") DEF(BigFloatEnv, "BigFloatEnv") DEF(BigDecimal, "BigDecimal") DEF(OperatorSet, "OperatorSet") DEF(Operators, "Operators") #endif DEF(Map, "Map") DEF(Set, "Set") /* Map + 1 */ DEF(WeakMap, "WeakMap") /* Map + 2 */ DEF(WeakSet, "WeakSet") /* Map + 3 */ DEF(Map_Iterator, "Map Iterator") DEF(Set_Iterator, "Set Iterator") DEF(Array_Iterator, "Array Iterator") DEF(String_Iterator, "String Iterator") DEF(RegExp_String_Iterator, "RegExp String Iterator") DEF(Generator, "Generator") DEF(Proxy, "Proxy") DEF(Promise, "Promise") DEF(PromiseResolveFunction, "PromiseResolveFunction") DEF(PromiseRejectFunction, "PromiseRejectFunction") DEF(AsyncFunction, "AsyncFunction") DEF(AsyncFunctionResolve, "AsyncFunctionResolve") DEF(AsyncFunctionReject, "AsyncFunctionReject") DEF(AsyncGeneratorFunction, "AsyncGeneratorFunction") DEF(AsyncGenerator, "AsyncGenerator") DEF(EvalError, "EvalError") DEF(RangeError, "RangeError") DEF(ReferenceError, "ReferenceError") DEF(SyntaxError, "SyntaxError") DEF(TypeError, "TypeError") DEF(URIError, "URIError") DEF(InternalError, "InternalError") /* private symbols */ DEF(Private_brand, "") /* symbols */ DEF(Symbol_toPrimitive, "Symbol.toPrimitive") DEF(Symbol_iterator, "Symbol.iterator") DEF(Symbol_match, "Symbol.match") DEF(Symbol_matchAll, "Symbol.matchAll") DEF(Symbol_replace, "Symbol.replace") DEF(Symbol_search, "Symbol.search") DEF(Symbol_split, "Symbol.split") DEF(Symbol_toStringTag, "Symbol.toStringTag") DEF(Symbol_isConcatSpreadable, "Symbol.isConcatSpreadable") DEF(Symbol_hasInstance, "Symbol.hasInstance") DEF(Symbol_species, "Symbol.species") DEF(Symbol_unscopables, "Symbol.unscopables") DEF(Symbol_asyncIterator, "Symbol.asyncIterator") #ifdef CONFIG_BIGNUM DEF(Symbol_operatorSet, "Symbol.operatorSet") #endif #endif /* DEF */ ================================================ FILE: quickjs-opcode.h ================================================ /* * QuickJS opcode definitions * * Copyright (c) 2017-2018 Fabrice Bellard * Copyright (c) 2017-2018 Charlie Gordon * * 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. */ #ifdef FMT FMT(none) FMT(none_int) FMT(none_loc) FMT(none_arg) FMT(none_var_ref) FMT(u8) FMT(i8) FMT(loc8) FMT(const8) FMT(label8) FMT(u16) FMT(i16) FMT(label16) FMT(npop) FMT(npopx) FMT(npop_u16) FMT(loc) FMT(arg) FMT(var_ref) FMT(u32) FMT(i32) FMT(const) FMT(label) FMT(atom) FMT(atom_u8) FMT(atom_u16) FMT(atom_label_u8) FMT(atom_label_u16) FMT(label_u16) #undef FMT #endif /* FMT */ #ifdef DEF #ifndef def #define def(id, size, n_pop, n_push, f) DEF(id, size, n_pop, n_push, f) #endif DEF(invalid, 1, 0, 0, none) /* never emitted */ /* push values */ DEF( push_i32, 5, 0, 1, i32) DEF( push_const, 5, 0, 1, const) DEF( fclosure, 5, 0, 1, const) /* must follow push_const */ DEF(push_atom_value, 5, 0, 1, atom) DEF( private_symbol, 5, 0, 1, atom) DEF( undefined, 1, 0, 1, none) DEF( null, 1, 0, 1, none) DEF( push_this, 1, 0, 1, none) /* only used at the start of a function */ DEF( push_false, 1, 0, 1, none) DEF( push_true, 1, 0, 1, none) DEF( object, 1, 0, 1, none) DEF( special_object, 2, 0, 1, u8) /* only used at the start of a function */ DEF( rest, 3, 0, 1, u16) /* only used at the start of a function */ DEF( drop, 1, 1, 0, none) /* a -> */ DEF( nip, 1, 2, 1, none) /* a b -> b */ DEF( nip1, 1, 3, 2, none) /* a b c -> b c */ DEF( dup, 1, 1, 2, none) /* a -> a a */ DEF( dup1, 1, 2, 3, none) /* a b -> a a b */ DEF( dup2, 1, 2, 4, none) /* a b -> a b a b */ DEF( dup3, 1, 3, 6, none) /* a b c -> a b c a b c */ DEF( insert2, 1, 2, 3, none) /* obj a -> a obj a (dup_x1) */ DEF( insert3, 1, 3, 4, none) /* obj prop a -> a obj prop a (dup_x2) */ DEF( insert4, 1, 4, 5, none) /* this obj prop a -> a this obj prop a */ DEF( perm3, 1, 3, 3, none) /* obj a b -> a obj b */ DEF( perm4, 1, 4, 4, none) /* obj prop a b -> a obj prop b */ DEF( perm5, 1, 5, 5, none) /* this obj prop a b -> a this obj prop b */ DEF( swap, 1, 2, 2, none) /* a b -> b a */ DEF( swap2, 1, 4, 4, none) /* a b c d -> c d a b */ DEF( rot3l, 1, 3, 3, none) /* x a b -> a b x */ DEF( rot3r, 1, 3, 3, none) /* a b x -> x a b */ DEF( rot4l, 1, 4, 4, none) /* x a b c -> a b c x */ DEF( rot5l, 1, 5, 5, none) /* x a b c d -> a b c d x */ DEF(call_constructor, 3, 2, 1, npop) /* func new.target args -> ret. arguments are not counted in n_pop */ DEF( call, 3, 1, 1, npop) /* arguments are not counted in n_pop */ DEF( tail_call, 3, 1, 0, npop) /* arguments are not counted in n_pop */ DEF( call_method, 3, 2, 1, npop) /* arguments are not counted in n_pop */ DEF(tail_call_method, 3, 2, 0, npop) /* arguments are not counted in n_pop */ DEF( array_from, 3, 0, 1, npop) /* arguments are not counted in n_pop */ DEF( apply, 3, 3, 1, u16) DEF( return, 1, 1, 0, none) DEF( return_undef, 1, 0, 0, none) DEF(check_ctor_return, 1, 1, 2, none) DEF( check_ctor, 1, 0, 0, none) DEF( check_brand, 1, 2, 2, none) /* this_obj func -> this_obj func */ DEF( add_brand, 1, 2, 0, none) /* this_obj home_obj -> */ DEF( return_async, 1, 1, 0, none) DEF( throw, 1, 1, 0, none) DEF( throw_var, 6, 0, 0, atom_u8) DEF( eval, 5, 1, 1, npop_u16) /* func args... -> ret_val */ DEF( apply_eval, 3, 2, 1, u16) /* func array -> ret_eval */ DEF( regexp, 1, 2, 1, none) /* create a RegExp object from the pattern and a bytecode string */ DEF( get_super, 1, 1, 1, none) DEF( import, 1, 1, 1, none) /* dynamic module import */ DEF( check_var, 5, 0, 1, atom) /* check if a variable exists */ DEF( get_var_undef, 5, 0, 1, atom) /* push undefined if the variable does not exist */ DEF( get_var, 5, 0, 1, atom) /* throw an exception if the variable does not exist */ DEF( put_var, 5, 1, 0, atom) /* must come after get_var */ DEF( put_var_init, 5, 1, 0, atom) /* must come after put_var. Used to initialize a global lexical variable */ DEF( put_var_strict, 5, 2, 0, atom) /* for strict mode variable write */ DEF( get_ref_value, 1, 2, 3, none) DEF( put_ref_value, 1, 3, 0, none) DEF( define_var, 6, 0, 0, atom_u8) DEF(check_define_var, 6, 0, 0, atom_u8) DEF( define_func, 6, 1, 0, atom_u8) DEF( get_field, 5, 1, 1, atom) DEF( get_field2, 5, 1, 2, atom) DEF( put_field, 5, 2, 0, atom) DEF( get_private_field, 1, 2, 1, none) /* obj prop -> value */ DEF( put_private_field, 1, 3, 0, none) /* obj value prop -> */ DEF(define_private_field, 1, 3, 1, none) /* obj prop value -> obj */ DEF( get_array_el, 1, 2, 1, none) DEF( get_array_el2, 1, 2, 2, none) /* obj prop -> obj value */ DEF( put_array_el, 1, 3, 0, none) DEF(get_super_value, 1, 3, 1, none) /* this obj prop -> value */ DEF(put_super_value, 1, 4, 0, none) /* this obj prop value -> */ DEF( define_field, 5, 2, 1, atom) DEF( set_name, 5, 1, 1, atom) DEF(set_name_computed, 1, 2, 2, none) DEF( set_proto, 1, 2, 1, none) DEF(set_home_object, 1, 2, 2, none) DEF(define_array_el, 1, 3, 2, none) DEF( append, 1, 3, 2, none) /* append enumerated object, update length */ DEF(copy_data_properties, 2, 3, 3, u8) DEF( define_method, 6, 2, 1, atom_u8) DEF(define_method_computed, 2, 3, 1, u8) /* must come after define_method */ DEF( define_class, 6, 2, 2, atom_u8) /* parent ctor -> ctor proto */ DEF( define_class_computed, 6, 3, 3, atom_u8) /* field_name parent ctor -> field_name ctor proto (class with computed name) */ DEF( get_loc, 3, 0, 1, loc) DEF( put_loc, 3, 1, 0, loc) /* must come after get_loc */ DEF( set_loc, 3, 1, 1, loc) /* must come after put_loc */ DEF( get_arg, 3, 0, 1, arg) DEF( put_arg, 3, 1, 0, arg) /* must come after get_arg */ DEF( set_arg, 3, 1, 1, arg) /* must come after put_arg */ DEF( get_var_ref, 3, 0, 1, var_ref) DEF( put_var_ref, 3, 1, 0, var_ref) /* must come after get_var_ref */ DEF( set_var_ref, 3, 1, 1, var_ref) /* must come after put_var_ref */ DEF(set_loc_uninitialized, 3, 0, 0, loc) DEF( get_loc_check, 3, 0, 1, loc) DEF( put_loc_check, 3, 1, 0, loc) /* must come after get_loc_check */ DEF( put_loc_check_init, 3, 1, 0, loc) DEF(get_var_ref_check, 3, 0, 1, var_ref) DEF(put_var_ref_check, 3, 1, 0, var_ref) /* must come after get_var_ref_check */ DEF(put_var_ref_check_init, 3, 1, 0, var_ref) DEF( close_loc, 3, 0, 0, loc) DEF( if_false, 5, 1, 0, label) DEF( if_true, 5, 1, 0, label) /* must come after if_false */ DEF( goto, 5, 0, 0, label) /* must come after if_true */ DEF( catch, 5, 0, 1, label) DEF( gosub, 5, 0, 0, label) /* used to execute the finally block */ DEF( ret, 1, 1, 0, none) /* used to return from the finally block */ DEF( to_object, 1, 1, 1, none) //DEF( to_string, 1, 1, 1, none) DEF( to_propkey, 1, 1, 1, none) DEF( to_propkey2, 1, 2, 2, none) DEF( with_get_var, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */ DEF( with_put_var, 10, 2, 1, atom_label_u8) /* must be in the same order as scope_xxx */ DEF(with_delete_var, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */ DEF( with_make_ref, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */ DEF( with_get_ref, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */ DEF(with_get_ref_undef, 10, 1, 0, atom_label_u8) DEF( make_loc_ref, 7, 0, 2, atom_u16) DEF( make_arg_ref, 7, 0, 2, atom_u16) DEF(make_var_ref_ref, 7, 0, 2, atom_u16) DEF( make_var_ref, 5, 0, 2, atom) DEF( for_in_start, 1, 1, 1, none) DEF( for_of_start, 1, 1, 3, none) DEF(for_await_of_start, 1, 1, 3, none) DEF( for_in_next, 1, 1, 3, none) DEF( for_of_next, 2, 3, 5, u8) DEF(for_await_of_next, 1, 3, 4, none) DEF(iterator_get_value_done, 1, 1, 2, none) DEF( iterator_close, 1, 3, 0, none) DEF(iterator_close_return, 1, 4, 4, none) DEF(async_iterator_close, 1, 3, 2, none) DEF(async_iterator_next, 1, 4, 4, none) DEF(async_iterator_get, 2, 4, 5, u8) DEF( initial_yield, 1, 0, 0, none) DEF( yield, 1, 1, 2, none) DEF( yield_star, 1, 2, 2, none) DEF(async_yield_star, 1, 1, 2, none) DEF( await, 1, 1, 1, none) /* arithmetic/logic operations */ DEF( neg, 1, 1, 1, none) DEF( plus, 1, 1, 1, none) DEF( dec, 1, 1, 1, none) DEF( inc, 1, 1, 1, none) DEF( post_dec, 1, 1, 2, none) DEF( post_inc, 1, 1, 2, none) DEF( dec_loc, 2, 0, 0, loc8) DEF( inc_loc, 2, 0, 0, loc8) DEF( add_loc, 2, 1, 0, loc8) DEF( not, 1, 1, 1, none) DEF( lnot, 1, 1, 1, none) DEF( typeof, 1, 1, 1, none) DEF( delete, 1, 2, 1, none) DEF( delete_var, 5, 0, 1, atom) DEF( mul, 1, 2, 1, none) DEF( div, 1, 2, 1, none) DEF( mod, 1, 2, 1, none) DEF( add, 1, 2, 1, none) DEF( sub, 1, 2, 1, none) DEF( pow, 1, 2, 1, none) DEF( shl, 1, 2, 1, none) DEF( sar, 1, 2, 1, none) DEF( shr, 1, 2, 1, none) DEF( lt, 1, 2, 1, none) DEF( lte, 1, 2, 1, none) DEF( gt, 1, 2, 1, none) DEF( gte, 1, 2, 1, none) DEF( instanceof, 1, 2, 1, none) DEF( in, 1, 2, 1, none) DEF( eq, 1, 2, 1, none) DEF( neq, 1, 2, 1, none) DEF( strict_eq, 1, 2, 1, none) DEF( strict_neq, 1, 2, 1, none) DEF( and, 1, 2, 1, none) DEF( xor, 1, 2, 1, none) DEF( or, 1, 2, 1, none) DEF(is_undefined_or_null, 1, 1, 1, none) #ifdef CONFIG_BIGNUM DEF( mul_pow10, 1, 2, 1, none) DEF( math_mod, 1, 2, 1, none) #endif /* must be the last non short and non temporary opcode */ DEF( nop, 1, 0, 0, none) /* temporary opcodes: never emitted in the final bytecode */ def(set_arg_valid_upto, 3, 0, 0, arg) /* emitted in phase 1, removed in phase 2 */ def( enter_scope, 3, 0, 0, u16) /* emitted in phase 1, removed in phase 2 */ def( leave_scope, 3, 0, 0, u16) /* emitted in phase 1, removed in phase 2 */ def( label, 5, 0, 0, label) /* emitted in phase 1, removed in phase 3 */ def(scope_get_var_undef, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */ def( scope_get_var, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */ def( scope_put_var, 7, 1, 0, atom_u16) /* emitted in phase 1, removed in phase 2 */ def(scope_delete_var, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */ def( scope_make_ref, 11, 0, 2, atom_label_u16) /* emitted in phase 1, removed in phase 2 */ def( scope_get_ref, 7, 0, 2, atom_u16) /* emitted in phase 1, removed in phase 2 */ def(scope_put_var_init, 7, 0, 2, atom_u16) /* emitted in phase 1, removed in phase 2 */ def(scope_get_private_field, 7, 1, 1, atom_u16) /* obj -> value, emitted in phase 1, removed in phase 2 */ def(scope_get_private_field2, 7, 1, 2, atom_u16) /* obj -> obj value, emitted in phase 1, removed in phase 2 */ def(scope_put_private_field, 7, 1, 1, atom_u16) /* obj value ->, emitted in phase 1, removed in phase 2 */ def( set_class_name, 5, 1, 1, u32) /* emitted in phase 1, removed in phase 2 */ def( line_num, 5, 0, 0, u32) /* emitted in phase 1, removed in phase 3 */ #if SHORT_OPCODES DEF( push_minus1, 1, 0, 1, none_int) DEF( push_0, 1, 0, 1, none_int) DEF( push_1, 1, 0, 1, none_int) DEF( push_2, 1, 0, 1, none_int) DEF( push_3, 1, 0, 1, none_int) DEF( push_4, 1, 0, 1, none_int) DEF( push_5, 1, 0, 1, none_int) DEF( push_6, 1, 0, 1, none_int) DEF( push_7, 1, 0, 1, none_int) DEF( push_i8, 2, 0, 1, i8) DEF( push_i16, 3, 0, 1, i16) DEF( push_const8, 2, 0, 1, const8) DEF( fclosure8, 2, 0, 1, const8) /* must follow push_const8 */ DEF(push_empty_string, 1, 0, 1, none) DEF( get_loc8, 2, 0, 1, loc8) DEF( put_loc8, 2, 1, 0, loc8) DEF( set_loc8, 2, 1, 1, loc8) DEF( get_loc0, 1, 0, 1, none_loc) DEF( get_loc1, 1, 0, 1, none_loc) DEF( get_loc2, 1, 0, 1, none_loc) DEF( get_loc3, 1, 0, 1, none_loc) DEF( put_loc0, 1, 1, 0, none_loc) DEF( put_loc1, 1, 1, 0, none_loc) DEF( put_loc2, 1, 1, 0, none_loc) DEF( put_loc3, 1, 1, 0, none_loc) DEF( set_loc0, 1, 1, 1, none_loc) DEF( set_loc1, 1, 1, 1, none_loc) DEF( set_loc2, 1, 1, 1, none_loc) DEF( set_loc3, 1, 1, 1, none_loc) DEF( get_arg0, 1, 0, 1, none_arg) DEF( get_arg1, 1, 0, 1, none_arg) DEF( get_arg2, 1, 0, 1, none_arg) DEF( get_arg3, 1, 0, 1, none_arg) DEF( put_arg0, 1, 1, 0, none_arg) DEF( put_arg1, 1, 1, 0, none_arg) DEF( put_arg2, 1, 1, 0, none_arg) DEF( put_arg3, 1, 1, 0, none_arg) DEF( set_arg0, 1, 1, 1, none_arg) DEF( set_arg1, 1, 1, 1, none_arg) DEF( set_arg2, 1, 1, 1, none_arg) DEF( set_arg3, 1, 1, 1, none_arg) DEF( get_var_ref0, 1, 0, 1, none_var_ref) DEF( get_var_ref1, 1, 0, 1, none_var_ref) DEF( get_var_ref2, 1, 0, 1, none_var_ref) DEF( get_var_ref3, 1, 0, 1, none_var_ref) DEF( put_var_ref0, 1, 1, 0, none_var_ref) DEF( put_var_ref1, 1, 1, 0, none_var_ref) DEF( put_var_ref2, 1, 1, 0, none_var_ref) DEF( put_var_ref3, 1, 1, 0, none_var_ref) DEF( set_var_ref0, 1, 1, 1, none_var_ref) DEF( set_var_ref1, 1, 1, 1, none_var_ref) DEF( set_var_ref2, 1, 1, 1, none_var_ref) DEF( set_var_ref3, 1, 1, 1, none_var_ref) DEF( get_length, 1, 1, 1, none) DEF( if_false8, 2, 1, 0, label8) DEF( if_true8, 2, 1, 0, label8) /* must come after if_false8 */ DEF( goto8, 2, 0, 0, label8) /* must come after if_true8 */ DEF( goto16, 3, 0, 0, label16) DEF( call0, 1, 1, 1, npopx) DEF( call1, 1, 1, 1, npopx) DEF( call2, 1, 1, 1, npopx) DEF( call3, 1, 1, 1, npopx) DEF( is_undefined, 1, 1, 1, none) DEF( is_null, 1, 1, 1, none) DEF( is_function, 1, 1, 1, none) #endif #undef DEF #undef def #endif /* DEF */ ================================================ FILE: quickjs.c ================================================ /* * QuickJS Javascript Engine * * Copyright (c) 2017-2020 Fabrice Bellard * Copyright (c) 2017-2020 Charlie Gordon * * 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. */ #include "version.h" #include #include #include #include #include #include #include #include #include #include #if defined(__APPLE__) #include #elif defined(__linux__) #include #endif #include "cutils.h" #include "list.h" #include "quickjs.h" #include "libregexp.h" #ifdef CONFIG_BIGNUM #include "libbf.h" #endif #define OPTIMIZE 1 #define SHORT_OPCODES 1 #if defined(EMSCRIPTEN) #define DIRECT_DISPATCH 0 #else #define DIRECT_DISPATCH 1 #endif #if defined(__APPLE__) #define MALLOC_OVERHEAD 0 #else #define MALLOC_OVERHEAD 8 #endif #if !defined(_WIN32) /* define it if printf uses the RNDN rounding mode instead of RNDNA */ #define CONFIG_PRINTF_RNDN #endif /* define to include Atomics.* operations which depend on the OS threads */ #if !defined(EMSCRIPTEN) #define CONFIG_ATOMICS #endif #if !defined(EMSCRIPTEN) /* enable stack limitation */ #define CONFIG_STACK_CHECK #endif /* dump object free */ //#define DUMP_FREE //#define DUMP_CLOSURE /* dump the bytecode of the compiled functions: combination of bits 1: dump pass 3 final byte code 2: dump pass 2 code 4: dump pass 1 code 8: dump stdlib functions 16: dump bytecode in hex 32: dump line number table */ //#define DUMP_BYTECODE (1) /* dump the occurence of the automatic GC */ //#define DUMP_GC /* dump objects freed by the garbage collector */ //#define DUMP_GC_FREE /* dump objects leaking when freeing the runtime */ //#define DUMP_LEAKS 1 /* dump memory usage before running the garbage collector */ //#define DUMP_MEM //#define DUMP_OBJECTS /* dump objects in JS_FreeContext */ //#define DUMP_ATOMS /* dump atoms in JS_FreeContext */ //#define DUMP_SHAPES /* dump shapes in JS_FreeContext */ //#define DUMP_MODULE_RESOLVE //#define DUMP_PROMISE //#define DUMP_READ_OBJECT /* test the GC by forcing it before each object allocation */ //#define FORCE_GC_AT_MALLOC #ifdef CONFIG_ATOMICS #include #include #include #endif enum { /* classid tag */ /* union usage | properties */ JS_CLASS_OBJECT = 1, /* must be first */ JS_CLASS_ARRAY, /* u.array | length */ JS_CLASS_ERROR, JS_CLASS_NUMBER, /* u.object_data */ JS_CLASS_STRING, /* u.object_data */ JS_CLASS_BOOLEAN, /* u.object_data */ JS_CLASS_SYMBOL, /* u.object_data */ JS_CLASS_ARGUMENTS, /* u.array | length */ JS_CLASS_MAPPED_ARGUMENTS, /* | length */ JS_CLASS_DATE, /* u.object_data */ JS_CLASS_MODULE_NS, JS_CLASS_C_FUNCTION, /* u.cfunc */ JS_CLASS_BYTECODE_FUNCTION, /* u.func */ JS_CLASS_BOUND_FUNCTION, /* u.bound_function */ JS_CLASS_C_FUNCTION_DATA, /* u.c_function_data_record */ JS_CLASS_GENERATOR_FUNCTION, /* u.func */ JS_CLASS_FOR_IN_ITERATOR, /* u.for_in_iterator */ JS_CLASS_REGEXP, /* u.regexp */ JS_CLASS_ARRAY_BUFFER, /* u.array_buffer */ JS_CLASS_SHARED_ARRAY_BUFFER, /* u.array_buffer */ JS_CLASS_UINT8C_ARRAY, /* u.array (typed_array) */ JS_CLASS_INT8_ARRAY, /* u.array (typed_array) */ JS_CLASS_UINT8_ARRAY, /* u.array (typed_array) */ JS_CLASS_INT16_ARRAY, /* u.array (typed_array) */ JS_CLASS_UINT16_ARRAY, /* u.array (typed_array) */ JS_CLASS_INT32_ARRAY, /* u.array (typed_array) */ JS_CLASS_UINT32_ARRAY, /* u.array (typed_array) */ #ifdef CONFIG_BIGNUM JS_CLASS_BIG_INT64_ARRAY, /* u.array (typed_array) */ JS_CLASS_BIG_UINT64_ARRAY, /* u.array (typed_array) */ #endif JS_CLASS_FLOAT32_ARRAY, /* u.array (typed_array) */ JS_CLASS_FLOAT64_ARRAY, /* u.array (typed_array) */ JS_CLASS_DATAVIEW, /* u.typed_array */ #ifdef CONFIG_BIGNUM JS_CLASS_BIG_INT, /* u.object_data */ JS_CLASS_BIG_FLOAT, /* u.object_data */ JS_CLASS_FLOAT_ENV, /* u.float_env */ JS_CLASS_BIG_DECIMAL, /* u.object_data */ JS_CLASS_OPERATOR_SET, /* u.operator_set */ #endif JS_CLASS_MAP, /* u.map_state */ JS_CLASS_SET, /* u.map_state */ JS_CLASS_WEAKMAP, /* u.map_state */ JS_CLASS_WEAKSET, /* u.map_state */ JS_CLASS_MAP_ITERATOR, /* u.map_iterator_data */ JS_CLASS_SET_ITERATOR, /* u.map_iterator_data */ JS_CLASS_ARRAY_ITERATOR, /* u.array_iterator_data */ JS_CLASS_STRING_ITERATOR, /* u.array_iterator_data */ JS_CLASS_REGEXP_STRING_ITERATOR, /* u.regexp_string_iterator_data */ JS_CLASS_GENERATOR, /* u.generator_data */ JS_CLASS_PROXY, /* u.proxy_data */ JS_CLASS_PROMISE, /* u.promise_data */ JS_CLASS_PROMISE_RESOLVE_FUNCTION, /* u.promise_function_data */ JS_CLASS_PROMISE_REJECT_FUNCTION, /* u.promise_function_data */ JS_CLASS_ASYNC_FUNCTION, /* u.func */ JS_CLASS_ASYNC_FUNCTION_RESOLVE, /* u.async_function_data */ JS_CLASS_ASYNC_FUNCTION_REJECT, /* u.async_function_data */ JS_CLASS_ASYNC_FROM_SYNC_ITERATOR, /* u.async_from_sync_iterator_data */ JS_CLASS_ASYNC_GENERATOR_FUNCTION, /* u.func */ JS_CLASS_ASYNC_GENERATOR, /* u.async_generator_data */ JS_CLASS_INIT_COUNT, /* last entry for predefined classes */ }; /* number of typed array types */ #define JS_TYPED_ARRAY_COUNT (JS_CLASS_FLOAT64_ARRAY - JS_CLASS_UINT8C_ARRAY + 1) static uint8_t const typed_array_size_log2[JS_TYPED_ARRAY_COUNT]; #define typed_array_size_log2(classid) (typed_array_size_log2[(classid)- JS_CLASS_UINT8C_ARRAY]) typedef enum JSErrorEnum { JS_EVAL_ERROR, JS_RANGE_ERROR, JS_REFERENCE_ERROR, JS_SYNTAX_ERROR, JS_TYPE_ERROR, JS_URI_ERROR, JS_INTERNAL_ERROR, JS_AGGREGATE_ERROR, JS_NATIVE_ERROR_COUNT, /* number of different NativeError objects */ } JSErrorEnum; #define JS_MAX_LOCAL_VARS 65536 #define JS_STACK_SIZE_MAX 65536 #define JS_STRING_LEN_MAX ((1 << 30) - 1) #define __exception __attribute__((warn_unused_result)) typedef struct JSShape JSShape; typedef struct JSString JSString; typedef struct JSString JSAtomStruct; typedef enum { JS_GC_PHASE_NONE, JS_GC_PHASE_DECREF, JS_GC_PHASE_REMOVE_CYCLES, } JSGCPhaseEnum; typedef enum OPCodeEnum OPCodeEnum; #ifdef CONFIG_BIGNUM /* function pointers are used for numeric operations so that it is possible to remove some numeric types */ typedef struct { JSValue (*to_string)(JSContext *ctx, JSValueConst val); JSValue (*from_string)(JSContext *ctx, const char *buf, int radix, int flags, slimb_t *pexponent); int (*unary_arith)(JSContext *ctx, JSValue *pres, OPCodeEnum op, JSValue op1); int (*binary_arith)(JSContext *ctx, OPCodeEnum op, JSValue *pres, JSValue op1, JSValue op2); int (*compare)(JSContext *ctx, OPCodeEnum op, JSValue op1, JSValue op2); /* only for bigfloat: */ JSValue (*mul_pow10_to_float64)(JSContext *ctx, const bf_t *a, int64_t exponent); int (*mul_pow10)(JSContext *ctx, JSValue *sp); } JSNumericOperations; #endif struct JSRuntime { JSMallocFunctions mf; JSMallocState malloc_state; const char *rt_info; int atom_hash_size; /* power of two */ int atom_count; int atom_size; int atom_count_resize; /* resize hash table at this count */ uint32_t *atom_hash; JSAtomStruct **atom_array; int atom_free_index; /* 0 = none */ int class_count; /* size of class_array */ JSClass *class_array; struct list_head context_list; /* list of JSContext.link */ /* list of JSGCObjectHeader.link. List of allocated GC objects (used by the garbage collector) */ struct list_head gc_obj_list; /* list of JSGCObjectHeader.link. Used during JS_FreeValueRT() */ struct list_head gc_zero_ref_count_list; struct list_head tmp_obj_list; /* used during GC */ JSGCPhaseEnum gc_phase : 8; size_t malloc_gc_threshold; #ifdef DUMP_LEAKS struct list_head string_list; /* list of JSString.link */ #endif /* stack limitation */ const uint8_t *stack_top; size_t stack_size; /* in bytes */ JSValue current_exception; /* true if inside an out of memory error, to avoid recursing */ BOOL in_out_of_memory : 8; struct JSStackFrame *current_stack_frame; JSInterruptHandler *interrupt_handler; void *interrupt_opaque; JSHostPromiseRejectionTracker *host_promise_rejection_tracker; void *host_promise_rejection_tracker_opaque; struct list_head job_list; /* list of JSJobEntry.link */ JSModuleNormalizeFunc *module_normalize_func; JSModuleLoaderFunc *module_loader_func; void *module_loader_opaque; BOOL can_block : 8; /* TRUE if Atomics.wait can block */ /* used to allocate, free and clone SharedArrayBuffers */ JSSharedArrayBufferFunctions sab_funcs; /* Shape hash table */ int shape_hash_bits; int shape_hash_size; int shape_hash_count; /* number of hashed shapes */ JSShape **shape_hash; #ifdef CONFIG_BIGNUM bf_context_t bf_ctx; JSNumericOperations bigint_ops; JSNumericOperations bigfloat_ops; JSNumericOperations bigdecimal_ops; uint32_t operator_count; #endif void *user_opaque; }; struct JSClass { uint32_t class_id; /* 0 means free entry */ JSAtom class_name; JSClassFinalizer *finalizer; JSClassGCMark *gc_mark; JSClassCall *call; /* pointers for exotic behavior, can be NULL if none are present */ const JSClassExoticMethods *exotic; }; #define JS_MODE_STRICT (1 << 0) #define JS_MODE_STRIP (1 << 1) #define JS_MODE_MATH (1 << 2) typedef struct JSStackFrame { struct JSStackFrame *prev_frame; /* NULL if first stack frame */ JSValue cur_func; /* current function, JS_UNDEFINED if the frame is detached */ JSValue *arg_buf; /* arguments */ JSValue *var_buf; /* variables */ struct list_head var_ref_list; /* list of JSVarRef.link */ const uint8_t *cur_pc; /* only used in bytecode functions : PC of the instruction after the call */ int arg_count; int js_mode; /* 0 or JS_MODE_MATH for C functions */ /* only used in generators. Current stack pointer value. NULL if the function is running. */ JSValue *cur_sp; } JSStackFrame; typedef enum { JS_GC_OBJ_TYPE_JS_OBJECT, JS_GC_OBJ_TYPE_FUNCTION_BYTECODE, JS_GC_OBJ_TYPE_SHAPE, JS_GC_OBJ_TYPE_VAR_REF, JS_GC_OBJ_TYPE_ASYNC_FUNCTION, JS_GC_OBJ_TYPE_JS_CONTEXT, } JSGCObjectTypeEnum; /* header for GC objects. GC objects are C data structures with a reference count that can reference other GC objects. JS Objects are a particular type of GC object. */ struct JSGCObjectHeader { int ref_count; /* must come first, 32-bit */ JSGCObjectTypeEnum gc_obj_type : 4; uint8_t mark : 4; /* used by the GC */ uint8_t dummy1; /* not used by the GC */ uint16_t dummy2; /* not used by the GC */ struct list_head link; }; typedef struct JSVarRef { union { JSGCObjectHeader header; /* must come first */ struct { int __gc_ref_count; /* corresponds to header.ref_count */ uint8_t __gc_mark; /* corresponds to header.mark/gc_obj_type */ /* 0 : the JSVarRef is on the stack. header.link is an element of JSStackFrame.var_ref_list. 1 : the JSVarRef is detached. header.link has the normal meanning */ uint8_t is_detached : 1; uint8_t is_arg : 1; uint16_t var_idx; /* index of the corresponding function variable on the stack */ }; }; JSValue *pvalue; /* pointer to the value, either on the stack or to 'value' */ JSValue value; /* used when the variable is no longer on the stack */ } JSVarRef; #ifdef CONFIG_BIGNUM typedef struct JSFloatEnv { limb_t prec; bf_flags_t flags; unsigned int status; } JSFloatEnv; /* the same structure is used for big integers and big floats. Big integers are never infinite or NaNs */ typedef struct JSBigFloat { JSRefCountHeader header; /* must come first, 32-bit */ bf_t num; } JSBigFloat; typedef struct JSBigDecimal { JSRefCountHeader header; /* must come first, 32-bit */ bfdec_t num; } JSBigDecimal; #endif typedef enum { JS_AUTOINIT_ID_PROTOTYPE, JS_AUTOINIT_ID_MODULE_NS, JS_AUTOINIT_ID_PROP, } JSAutoInitIDEnum; /* must be large enough to have a negligible runtime cost and small enough to call the interrupt callback often. */ #define JS_INTERRUPT_COUNTER_INIT 10000 struct JSContext { JSGCObjectHeader header; /* must come first */ JSRuntime *rt; struct list_head link; uint16_t binary_object_count; int binary_object_size; JSShape *array_shape; /* initial shape for Array objects */ JSValue *class_proto; JSValue function_proto; JSValue function_ctor; JSValue array_ctor; JSValue regexp_ctor; JSValue promise_ctor; JSValue native_error_proto[JS_NATIVE_ERROR_COUNT]; JSValue iterator_proto; JSValue async_iterator_proto; JSValue array_proto_values; JSValue throw_type_error; JSValue eval_obj; JSValue global_obj; /* global object */ JSValue global_var_obj; /* contains the global let/const definitions */ uint64_t random_state; #ifdef CONFIG_BIGNUM bf_context_t *bf_ctx; /* points to rt->bf_ctx, shared by all contexts */ JSFloatEnv fp_env; /* global FP environment */ BOOL bignum_ext : 8; /* enable math mode */ BOOL allow_operator_overloading : 8; #endif /* when the counter reaches zero, JSRutime.interrupt_handler is called */ int interrupt_counter; BOOL is_error_property_enabled; struct list_head loaded_modules; /* list of JSModuleDef.link */ /* if NULL, RegExp compilation is not supported */ JSValue (*compile_regexp)(JSContext *ctx, JSValueConst pattern, JSValueConst flags); /* if NULL, eval is not supported */ JSValue (*eval_internal)(JSContext *ctx, JSValueConst this_obj, const char *input, size_t input_len, const char *filename, int flags, int scope_idx); void *user_opaque; }; typedef union JSFloat64Union { double d; uint64_t u64; uint32_t u32[2]; } JSFloat64Union; enum { JS_ATOM_TYPE_STRING = 1, JS_ATOM_TYPE_GLOBAL_SYMBOL, JS_ATOM_TYPE_SYMBOL, JS_ATOM_TYPE_PRIVATE, }; enum { JS_ATOM_HASH_SYMBOL, JS_ATOM_HASH_PRIVATE, }; typedef enum { JS_ATOM_KIND_STRING, JS_ATOM_KIND_SYMBOL, JS_ATOM_KIND_PRIVATE, } JSAtomKindEnum; #define JS_ATOM_HASH_MASK ((1 << 30) - 1) struct JSString { JSRefCountHeader header; /* must come first, 32-bit */ uint32_t len : 31; uint8_t is_wide_char : 1; /* 0 = 8 bits, 1 = 16 bits characters */ /* for JS_ATOM_TYPE_SYMBOL: hash = 0, atom_type = 3, for JS_ATOM_TYPE_PRIVATE: hash = 1, atom_type = 3 XXX: could change encoding to have one more bit in hash */ uint32_t hash : 30; uint8_t atom_type : 2; /* != 0 if atom, JS_ATOM_TYPE_x */ uint32_t hash_next; /* atom_index for JS_ATOM_TYPE_SYMBOL */ #ifdef DUMP_LEAKS struct list_head link; /* string list */ #endif union { uint8_t str8[0]; /* 8 bit strings will get an extra null terminator */ uint16_t str16[0]; } u; }; typedef struct JSClosureVar { uint8_t is_local : 1; uint8_t is_arg : 1; uint8_t is_const : 1; uint8_t is_lexical : 1; uint8_t var_kind : 3; /* see JSVarKindEnum */ /* 9 bits available */ uint16_t var_idx; /* is_local = TRUE: index to a normal variable of the parent function. otherwise: index to a closure variable of the parent function */ JSAtom var_name; } JSClosureVar; typedef struct JSVarScope { int parent; /* index into fd->scopes of the enclosing scope */ int first; /* index into fd->vars of the last variable in this scope */ } JSVarScope; typedef enum { /* XXX: add more variable kinds here instead of using bit fields */ JS_VAR_NORMAL, JS_VAR_FUNCTION_DECL, /* lexical var with function declaration */ JS_VAR_NEW_FUNCTION_DECL, /* lexical var with async/generator function declaration */ JS_VAR_CATCH, JS_VAR_PRIVATE_FIELD, JS_VAR_PRIVATE_METHOD, JS_VAR_PRIVATE_GETTER, JS_VAR_PRIVATE_SETTER, /* must come after JS_VAR_PRIVATE_GETTER */ JS_VAR_PRIVATE_GETTER_SETTER, /* must come after JS_VAR_PRIVATE_SETTER */ } JSVarKindEnum; typedef struct JSVarDef { JSAtom var_name; int scope_level; /* index into fd->scopes of this variable lexical scope */ int scope_next; /* index into fd->vars of the next variable in the * same or enclosing lexical scope */ uint8_t is_func_var : 1; /* used for the function self reference */ uint8_t is_const : 1; uint8_t is_lexical : 1; uint8_t is_captured : 1; uint8_t var_kind : 4; /* see JSVarKindEnum */ /* only used during compilation: function pool index for lexical variables with var_kind = JS_VAR_FUNCTION_DECL/JS_VAR_NEW_FUNCTION_DECL or scope level of the definition of the 'var' variables (they have scope_level = 0) */ int func_pool_or_scope_idx : 24; /* only used during compilation */ } JSVarDef; /* for the encoding of the pc2line table */ #define PC2LINE_BASE (-1) #define PC2LINE_RANGE 5 #define PC2LINE_OP_FIRST 1 #define PC2LINE_DIFF_PC_MAX ((255 - PC2LINE_OP_FIRST) / PC2LINE_RANGE) typedef enum JSFunctionKindEnum { JS_FUNC_NORMAL = 0, JS_FUNC_GENERATOR = (1 << 0), JS_FUNC_ASYNC = (1 << 1), JS_FUNC_ASYNC_GENERATOR = (JS_FUNC_GENERATOR | JS_FUNC_ASYNC), } JSFunctionKindEnum; typedef struct JSFunctionBytecode { JSGCObjectHeader header; /* must come first */ uint8_t js_mode; uint8_t has_prototype : 1; /* true if a prototype field is necessary */ uint8_t has_simple_parameter_list : 1; uint8_t is_derived_class_constructor : 1; /* true if home_object needs to be initialized */ uint8_t need_home_object : 1; uint8_t func_kind : 2; uint8_t new_target_allowed : 1; uint8_t super_call_allowed : 1; uint8_t super_allowed : 1; uint8_t arguments_allowed : 1; uint8_t has_debug : 1; uint8_t backtrace_barrier : 1; /* stop backtrace on this function */ uint8_t read_only_bytecode : 1; /* XXX: 4 bits available */ uint8_t *byte_code_buf; /* (self pointer) */ int byte_code_len; JSAtom func_name; JSVarDef *vardefs; /* arguments + local variables (arg_count + var_count) (self pointer) */ JSClosureVar *closure_var; /* list of variables in the closure (self pointer) */ uint16_t arg_count; uint16_t var_count; uint16_t defined_arg_count; /* for length function property */ uint16_t stack_size; /* maximum stack size */ JSContext *realm; /* function realm */ JSValue *cpool; /* constant pool (self pointer) */ int cpool_count; int closure_var_count; struct { /* debug info, move to separate structure to save memory? */ JSAtom filename; int line_num; int source_len; int pc2line_len; uint8_t *pc2line_buf; char *source; } debug; } JSFunctionBytecode; typedef struct JSBoundFunction { JSValue func_obj; JSValue this_val; int argc; JSValue argv[0]; } JSBoundFunction; typedef enum JSIteratorKindEnum { JS_ITERATOR_KIND_KEY, JS_ITERATOR_KIND_VALUE, JS_ITERATOR_KIND_KEY_AND_VALUE, } JSIteratorKindEnum; typedef struct JSForInIterator { JSValue obj; BOOL is_array; uint32_t array_length; uint32_t idx; } JSForInIterator; typedef struct JSRegExp { JSString *pattern; JSString *bytecode; /* also contains the flags */ } JSRegExp; typedef struct JSProxyData { JSValue target; JSValue handler; uint8_t is_func; uint8_t is_revoked; } JSProxyData; typedef struct JSArrayBuffer { int byte_length; /* 0 if detached */ uint8_t detached; uint8_t shared; /* if shared, the array buffer cannot be detached */ uint8_t *data; /* NULL if detached */ struct list_head array_list; void *opaque; JSFreeArrayBufferDataFunc *free_func; } JSArrayBuffer; typedef struct JSTypedArray { struct list_head link; /* link to arraybuffer */ JSObject *obj; /* back pointer to the TypedArray/DataView object */ JSObject *buffer; /* based array buffer */ uint32_t offset; /* offset in the array buffer */ uint32_t length; /* length in the array buffer */ } JSTypedArray; typedef struct JSAsyncFunctionState { JSValue this_val; /* 'this' generator argument */ int argc; /* number of function arguments */ BOOL throw_flag; /* used to throw an exception in JS_CallInternal() */ JSStackFrame frame; } JSAsyncFunctionState; /* XXX: could use an object instead to avoid the JS_TAG_ASYNC_FUNCTION tag for the GC */ typedef struct JSAsyncFunctionData { JSGCObjectHeader header; /* must come first */ JSValue resolving_funcs[2]; BOOL is_active; /* true if the async function state is valid */ JSAsyncFunctionState func_state; } JSAsyncFunctionData; typedef enum { /* binary operators */ JS_OVOP_ADD, JS_OVOP_SUB, JS_OVOP_MUL, JS_OVOP_DIV, JS_OVOP_MOD, JS_OVOP_POW, JS_OVOP_OR, JS_OVOP_AND, JS_OVOP_XOR, JS_OVOP_SHL, JS_OVOP_SAR, JS_OVOP_SHR, JS_OVOP_EQ, JS_OVOP_LESS, JS_OVOP_BINARY_COUNT, /* unary operators */ JS_OVOP_POS = JS_OVOP_BINARY_COUNT, JS_OVOP_NEG, JS_OVOP_INC, JS_OVOP_DEC, JS_OVOP_NOT, JS_OVOP_COUNT, } JSOverloadableOperatorEnum; typedef struct { uint32_t operator_index; JSObject *ops[JS_OVOP_BINARY_COUNT]; /* self operators */ } JSBinaryOperatorDefEntry; typedef struct { int count; JSBinaryOperatorDefEntry *tab; } JSBinaryOperatorDef; typedef struct { uint32_t operator_counter; BOOL is_primitive; /* OperatorSet for a primitive type */ /* NULL if no operator is defined */ JSObject *self_ops[JS_OVOP_COUNT]; /* self operators */ JSBinaryOperatorDef left; JSBinaryOperatorDef right; } JSOperatorSetData; typedef struct JSReqModuleEntry { JSAtom module_name; JSModuleDef *module; /* used using resolution */ } JSReqModuleEntry; typedef enum JSExportTypeEnum { JS_EXPORT_TYPE_LOCAL, JS_EXPORT_TYPE_INDIRECT, } JSExportTypeEnum; typedef struct JSExportEntry { union { struct { int var_idx; /* closure variable index */ JSVarRef *var_ref; /* if != NULL, reference to the variable */ } local; /* for local export */ int req_module_idx; /* module for indirect export */ } u; JSExportTypeEnum export_type; JSAtom local_name; /* '*' if export ns from. not used for local export after compilation */ JSAtom export_name; /* exported variable name */ } JSExportEntry; typedef struct JSStarExportEntry { int req_module_idx; /* in req_module_entries */ } JSStarExportEntry; typedef struct JSImportEntry { int var_idx; /* closure variable index */ JSAtom import_name; int req_module_idx; /* in req_module_entries */ } JSImportEntry; struct JSModuleDef { JSRefCountHeader header; /* must come first, 32-bit */ JSAtom module_name; struct list_head link; JSReqModuleEntry *req_module_entries; int req_module_entries_count; int req_module_entries_size; JSExportEntry *export_entries; int export_entries_count; int export_entries_size; JSStarExportEntry *star_export_entries; int star_export_entries_count; int star_export_entries_size; JSImportEntry *import_entries; int import_entries_count; int import_entries_size; JSValue module_ns; JSValue func_obj; /* only used for JS modules */ JSModuleInitFunc *init_func; /* only used for C modules */ BOOL resolved : 8; BOOL func_created : 8; BOOL instantiated : 8; BOOL evaluated : 8; BOOL eval_mark : 8; /* temporary use during js_evaluate_module() */ /* true if evaluation yielded an exception. It is saved in eval_exception */ BOOL eval_has_exception : 8; JSValue eval_exception; JSValue meta_obj; /* for import.meta */ }; typedef struct JSJobEntry { struct list_head link; JSContext *ctx; JSJobFunc *job_func; int argc; JSValue argv[0]; } JSJobEntry; typedef struct JSProperty { union { JSValue value; /* JS_PROP_NORMAL */ struct { /* JS_PROP_GETSET */ JSObject *getter; /* NULL if undefined */ JSObject *setter; /* NULL if undefined */ } getset; JSVarRef *var_ref; /* JS_PROP_VARREF */ struct { /* JS_PROP_AUTOINIT */ /* in order to use only 2 pointers, we compress the realm and the init function pointer */ uintptr_t realm_and_id; /* realm and init_id (JS_AUTOINIT_ID_x) in the 2 low bits */ void *opaque; } init; } u; } JSProperty; #define JS_PROP_INITIAL_SIZE 2 #define JS_PROP_INITIAL_HASH_SIZE 4 /* must be a power of two */ #define JS_ARRAY_INITIAL_SIZE 2 typedef struct JSShapeProperty { uint32_t hash_next : 26; /* 0 if last in list */ uint32_t flags : 6; /* JS_PROP_XXX */ JSAtom atom; /* JS_ATOM_NULL = free property entry */ } JSShapeProperty; struct JSShape { uint32_t prop_hash_end[0]; /* hash table of size hash_mask + 1 before the start of the structure. */ JSGCObjectHeader header; /* true if the shape is inserted in the shape hash table. If not, JSShape.hash is not valid */ uint8_t is_hashed; /* If true, the shape may have small array index properties 'n' with 0 <= n <= 2^31-1. If false, the shape is guaranteed not to have small array index properties */ uint8_t has_small_array_index; uint32_t hash; /* current hash value */ uint32_t prop_hash_mask; int prop_size; /* allocated properties */ int prop_count; /* include deleted properties */ int deleted_prop_count; JSShape *shape_hash_next; /* in JSRuntime.shape_hash[h] list */ JSObject *proto; JSShapeProperty prop[0]; /* prop_size elements */ }; struct JSObject { union { JSGCObjectHeader header; struct { int __gc_ref_count; /* corresponds to header.ref_count */ uint8_t __gc_mark; /* corresponds to header.mark/gc_obj_type */ uint8_t extensible : 1; uint8_t free_mark : 1; /* only used when freeing objects with cycles */ uint8_t is_exotic : 1; /* TRUE if object has exotic property handlers */ uint8_t fast_array : 1; /* TRUE if u.array is used for get/put */ uint8_t is_constructor : 1; /* TRUE if object is a constructor function */ uint8_t is_uncatchable_error : 1; /* if TRUE, error is not catchable */ uint8_t tmp_mark : 1; /* used in JS_WriteObjectRec() */ uint16_t class_id; /* see JS_CLASS_x */ }; }; /* byte offsets: 16/24 */ JSShape *shape; /* prototype and property names + flag */ JSProperty *prop; /* array of properties */ /* byte offsets: 24/40 */ struct JSMapRecord *first_weak_ref; /* XXX: use a bit and an external hash table? */ /* byte offsets: 28/48 */ union { void *opaque; struct JSBoundFunction *bound_function; /* JS_CLASS_BOUND_FUNCTION */ struct JSCFunctionDataRecord *c_function_data_record; /* JS_CLASS_C_FUNCTION_DATA */ struct JSForInIterator *for_in_iterator; /* JS_CLASS_FOR_IN_ITERATOR */ struct JSArrayBuffer *array_buffer; /* JS_CLASS_ARRAY_BUFFER, JS_CLASS_SHARED_ARRAY_BUFFER */ struct JSTypedArray *typed_array; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_DATAVIEW */ #ifdef CONFIG_BIGNUM struct JSFloatEnv *float_env; /* JS_CLASS_FLOAT_ENV */ struct JSOperatorSetData *operator_set; /* JS_CLASS_OPERATOR_SET */ #endif struct JSMapState *map_state; /* JS_CLASS_MAP..JS_CLASS_WEAKSET */ struct JSMapIteratorData *map_iterator_data; /* JS_CLASS_MAP_ITERATOR, JS_CLASS_SET_ITERATOR */ struct JSArrayIteratorData *array_iterator_data; /* JS_CLASS_ARRAY_ITERATOR, JS_CLASS_STRING_ITERATOR */ struct JSRegExpStringIteratorData *regexp_string_iterator_data; /* JS_CLASS_REGEXP_STRING_ITERATOR */ struct JSGeneratorData *generator_data; /* JS_CLASS_GENERATOR */ struct JSProxyData *proxy_data; /* JS_CLASS_PROXY */ struct JSPromiseData *promise_data; /* JS_CLASS_PROMISE */ struct JSPromiseFunctionData *promise_function_data; /* JS_CLASS_PROMISE_RESOLVE_FUNCTION, JS_CLASS_PROMISE_REJECT_FUNCTION */ struct JSAsyncFunctionData *async_function_data; /* JS_CLASS_ASYNC_FUNCTION_RESOLVE, JS_CLASS_ASYNC_FUNCTION_REJECT */ struct JSAsyncFromSyncIteratorData *async_from_sync_iterator_data; /* JS_CLASS_ASYNC_FROM_SYNC_ITERATOR */ struct JSAsyncGeneratorData *async_generator_data; /* JS_CLASS_ASYNC_GENERATOR */ struct { /* JS_CLASS_BYTECODE_FUNCTION: 12/24 bytes */ /* also used by JS_CLASS_GENERATOR_FUNCTION, JS_CLASS_ASYNC_FUNCTION and JS_CLASS_ASYNC_GENERATOR_FUNCTION */ struct JSFunctionBytecode *function_bytecode; JSVarRef **var_refs; JSObject *home_object; /* for 'super' access */ } func; struct { /* JS_CLASS_C_FUNCTION: 12/20 bytes */ JSContext *realm; JSCFunctionType c_function; uint8_t length; uint8_t cproto; int16_t magic; } cfunc; /* array part for fast arrays and typed arrays */ struct { /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS, JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */ union { uint32_t size; /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS */ struct JSTypedArray *typed_array; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */ } u1; union { JSValue *values; /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS */ void *ptr; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */ int8_t *int8_ptr; /* JS_CLASS_INT8_ARRAY */ uint8_t *uint8_ptr; /* JS_CLASS_UINT8_ARRAY, JS_CLASS_UINT8C_ARRAY */ int16_t *int16_ptr; /* JS_CLASS_INT16_ARRAY */ uint16_t *uint16_ptr; /* JS_CLASS_UINT16_ARRAY */ int32_t *int32_ptr; /* JS_CLASS_INT32_ARRAY */ uint32_t *uint32_ptr; /* JS_CLASS_UINT32_ARRAY */ int64_t *int64_ptr; /* JS_CLASS_INT64_ARRAY */ uint64_t *uint64_ptr; /* JS_CLASS_UINT64_ARRAY */ float *float_ptr; /* JS_CLASS_FLOAT32_ARRAY */ double *double_ptr; /* JS_CLASS_FLOAT64_ARRAY */ } u; uint32_t count; /* <= 2^31-1. 0 for a detached typed array */ } array; /* 12/20 bytes */ JSRegExp regexp; /* JS_CLASS_REGEXP: 8/16 bytes */ JSValue object_data; /* for JS_SetObjectData(): 8/16/16 bytes */ } u; /* byte sizes: 40/48/72 */ }; enum { JS_ATOM_NULL, #define DEF(name, str) JS_ATOM_ ## name, #include "quickjs-atom.h" #undef DEF JS_ATOM_END, }; #define JS_ATOM_LAST_KEYWORD JS_ATOM_super #define JS_ATOM_LAST_STRICT_KEYWORD JS_ATOM_yield static const char js_atom_init[] = #define DEF(name, str) str "\0" #include "quickjs-atom.h" #undef DEF ; typedef enum OPCodeFormat { #define FMT(f) OP_FMT_ ## f, #define DEF(id, size, n_pop, n_push, f) #include "quickjs-opcode.h" #undef DEF #undef FMT } OPCodeFormat; enum OPCodeEnum { #define FMT(f) #define DEF(id, size, n_pop, n_push, f) OP_ ## id, #define def(id, size, n_pop, n_push, f) #include "quickjs-opcode.h" #undef def #undef DEF #undef FMT OP_COUNT, /* excluding temporary opcodes */ /* temporary opcodes : overlap with the short opcodes */ OP_TEMP_START = OP_nop + 1, OP___dummy = OP_TEMP_START - 1, #define FMT(f) #define DEF(id, size, n_pop, n_push, f) #define def(id, size, n_pop, n_push, f) OP_ ## id, #include "quickjs-opcode.h" #undef def #undef DEF #undef FMT OP_TEMP_END, }; static int JS_InitAtoms(JSRuntime *rt); static JSAtom __JS_NewAtomInit(JSRuntime *rt, const char *str, int len, int atom_type); static void JS_FreeAtomStruct(JSRuntime *rt, JSAtomStruct *p); static void free_function_bytecode(JSRuntime *rt, JSFunctionBytecode *b); static JSValue js_call_c_function(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv, int flags); static JSValue js_call_bound_function(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv, int flags); static JSValue JS_CallInternal(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, JSValueConst new_target, int argc, JSValue *argv, int flags); static JSValue JS_CallConstructorInternal(JSContext *ctx, JSValueConst func_obj, JSValueConst new_target, int argc, JSValue *argv, int flags); static JSValue JS_CallFree(JSContext *ctx, JSValue func_obj, JSValueConst this_obj, int argc, JSValueConst *argv); static JSValue JS_InvokeFree(JSContext *ctx, JSValue this_val, JSAtom atom, int argc, JSValueConst *argv); static __exception int JS_ToArrayLengthFree(JSContext *ctx, uint32_t *plen, JSValue val); static JSValue JS_EvalObject(JSContext *ctx, JSValueConst this_obj, JSValueConst val, int flags, int scope_idx); JSValue __attribute__((format(printf, 2, 3))) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...); static __maybe_unused void JS_DumpAtoms(JSRuntime *rt); static __maybe_unused void JS_DumpString(JSRuntime *rt, const JSString *p); static __maybe_unused void JS_DumpObjectHeader(JSRuntime *rt); static __maybe_unused void JS_DumpObject(JSRuntime *rt, JSObject *p); static __maybe_unused void JS_DumpGCObject(JSRuntime *rt, JSGCObjectHeader *p); static __maybe_unused void JS_DumpValueShort(JSRuntime *rt, JSValueConst val); static __maybe_unused void JS_DumpValue(JSContext *ctx, JSValueConst val); static __maybe_unused void JS_PrintValue(JSContext *ctx, const char *str, JSValueConst val); static __maybe_unused void JS_DumpShapes(JSRuntime *rt); static JSValue js_function_apply(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic); static void js_array_finalizer(JSRuntime *rt, JSValue val); static void js_array_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_object_data_finalizer(JSRuntime *rt, JSValue val); static void js_object_data_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_c_function_finalizer(JSRuntime *rt, JSValue val); static void js_c_function_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_bytecode_function_finalizer(JSRuntime *rt, JSValue val); static void js_bytecode_function_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_bound_function_finalizer(JSRuntime *rt, JSValue val); static void js_bound_function_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_for_in_iterator_finalizer(JSRuntime *rt, JSValue val); static void js_for_in_iterator_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_regexp_finalizer(JSRuntime *rt, JSValue val); static void js_array_buffer_finalizer(JSRuntime *rt, JSValue val); static void js_typed_array_finalizer(JSRuntime *rt, JSValue val); static void js_typed_array_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_proxy_finalizer(JSRuntime *rt, JSValue val); static void js_proxy_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_map_finalizer(JSRuntime *rt, JSValue val); static void js_map_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_map_iterator_finalizer(JSRuntime *rt, JSValue val); static void js_map_iterator_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_array_iterator_finalizer(JSRuntime *rt, JSValue val); static void js_array_iterator_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_regexp_string_iterator_finalizer(JSRuntime *rt, JSValue val); static void js_regexp_string_iterator_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_generator_finalizer(JSRuntime *rt, JSValue obj); static void js_generator_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_promise_finalizer(JSRuntime *rt, JSValue val); static void js_promise_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static void js_promise_resolve_function_finalizer(JSRuntime *rt, JSValue val); static void js_promise_resolve_function_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); #ifdef CONFIG_BIGNUM static void js_operator_set_finalizer(JSRuntime *rt, JSValue val); static void js_operator_set_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); #endif static JSValue JS_ToStringFree(JSContext *ctx, JSValue val); static int JS_ToBoolFree(JSContext *ctx, JSValue val); static int JS_ToInt32Free(JSContext *ctx, int32_t *pres, JSValue val); static int JS_ToFloat64Free(JSContext *ctx, double *pres, JSValue val); static int JS_ToUint8ClampFree(JSContext *ctx, int32_t *pres, JSValue val); static JSValue js_compile_regexp(JSContext *ctx, JSValueConst pattern, JSValueConst flags); static JSValue js_regexp_constructor_internal(JSContext *ctx, JSValueConst ctor, JSValue pattern, JSValue bc); static void gc_decref(JSRuntime *rt); static int JS_NewClass1(JSRuntime *rt, JSClassID class_id, const JSClassDef *class_def, JSAtom name); typedef enum JSStrictEqModeEnum { JS_EQ_STRICT, JS_EQ_SAME_VALUE, JS_EQ_SAME_VALUE_ZERO, } JSStrictEqModeEnum; static BOOL js_strict_eq2(JSContext *ctx, JSValue op1, JSValue op2, JSStrictEqModeEnum eq_mode); static BOOL js_strict_eq(JSContext *ctx, JSValue op1, JSValue op2); static BOOL js_same_value(JSContext *ctx, JSValueConst op1, JSValueConst op2); static BOOL js_same_value_zero(JSContext *ctx, JSValueConst op1, JSValueConst op2); static JSValue JS_ToObject(JSContext *ctx, JSValueConst val); static JSValue JS_ToObjectFree(JSContext *ctx, JSValue val); static JSProperty *add_property(JSContext *ctx, JSObject *p, JSAtom prop, int prop_flags); #ifdef CONFIG_BIGNUM static void js_float_env_finalizer(JSRuntime *rt, JSValue val); static JSValue JS_NewBigFloat(JSContext *ctx); static inline bf_t *JS_GetBigFloat(JSValueConst val) { JSBigFloat *p = JS_VALUE_GET_PTR(val); return &p->num; } static JSValue JS_NewBigDecimal(JSContext *ctx); static inline bfdec_t *JS_GetBigDecimal(JSValueConst val) { JSBigDecimal *p = JS_VALUE_GET_PTR(val); return &p->num; } static JSValue JS_NewBigInt(JSContext *ctx); static inline bf_t *JS_GetBigInt(JSValueConst val) { JSBigFloat *p = JS_VALUE_GET_PTR(val); return &p->num; } static JSValue JS_CompactBigInt1(JSContext *ctx, JSValue val, BOOL convert_to_safe_integer); static JSValue JS_CompactBigInt(JSContext *ctx, JSValue val); static int JS_ToBigInt64Free(JSContext *ctx, int64_t *pres, JSValue val); static bf_t *JS_ToBigInt(JSContext *ctx, bf_t *buf, JSValueConst val); static void JS_FreeBigInt(JSContext *ctx, bf_t *a, bf_t *buf); static bf_t *JS_ToBigFloat(JSContext *ctx, bf_t *buf, JSValueConst val); static JSValue JS_ToBigDecimalFree(JSContext *ctx, JSValue val, BOOL allow_null_or_undefined); static bfdec_t *JS_ToBigDecimal(JSContext *ctx, JSValueConst val); #endif JSValue JS_ThrowOutOfMemory(JSContext *ctx); static JSValue JS_ThrowTypeErrorRevokedProxy(JSContext *ctx); static JSValue js_proxy_getPrototypeOf(JSContext *ctx, JSValueConst obj); static int js_proxy_setPrototypeOf(JSContext *ctx, JSValueConst obj, JSValueConst proto_val, BOOL throw_flag); static int js_proxy_isExtensible(JSContext *ctx, JSValueConst obj); static int js_proxy_preventExtensions(JSContext *ctx, JSValueConst obj); static int js_proxy_isArray(JSContext *ctx, JSValueConst obj); static int JS_CreateProperty(JSContext *ctx, JSObject *p, JSAtom prop, JSValueConst val, JSValueConst getter, JSValueConst setter, int flags); static int js_string_memcmp(const JSString *p1, const JSString *p2, int len); static void reset_weak_ref(JSRuntime *rt, JSObject *p); static JSValue js_array_buffer_constructor3(JSContext *ctx, JSValueConst new_target, uint64_t len, JSClassID class_id, uint8_t *buf, JSFreeArrayBufferDataFunc *free_func, void *opaque, BOOL alloc_flag); static JSArrayBuffer *js_get_array_buffer(JSContext *ctx, JSValueConst obj); static JSValue js_typed_array_constructor(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int classid); static BOOL typed_array_is_detached(JSContext *ctx, JSObject *p); static uint32_t typed_array_get_length(JSContext *ctx, JSObject *p); static JSValue JS_ThrowTypeErrorDetachedArrayBuffer(JSContext *ctx); static JSVarRef *get_var_ref(JSContext *ctx, JSStackFrame *sf, int var_idx, BOOL is_arg); static JSValue js_generator_function_call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv, int flags); static void js_async_function_resolve_finalizer(JSRuntime *rt, JSValue val); static void js_async_function_resolve_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static JSValue JS_EvalInternal(JSContext *ctx, JSValueConst this_obj, const char *input, size_t input_len, const char *filename, int flags, int scope_idx); static void js_free_module_def(JSContext *ctx, JSModuleDef *m); static void js_mark_module_def(JSRuntime *rt, JSModuleDef *m, JS_MarkFunc *mark_func); static JSValue js_import_meta(JSContext *ctx); static JSValue js_dynamic_import(JSContext *ctx, JSValueConst specifier); static void free_var_ref(JSRuntime *rt, JSVarRef *var_ref); static JSValue js_new_promise_capability(JSContext *ctx, JSValue *resolving_funcs, JSValueConst ctor); static __exception int perform_promise_then(JSContext *ctx, JSValueConst promise, JSValueConst *resolve_reject, JSValueConst *cap_resolving_funcs); static JSValue js_promise_resolve(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic); static int js_string_compare(JSContext *ctx, const JSString *p1, const JSString *p2); static JSValue JS_ToNumber(JSContext *ctx, JSValueConst val); static int JS_SetPropertyValue(JSContext *ctx, JSValueConst this_obj, JSValue prop, JSValue val, int flags); static int JS_NumberIsInteger(JSContext *ctx, JSValueConst val); static BOOL JS_NumberIsNegativeOrMinusZero(JSContext *ctx, JSValueConst val); static JSValue JS_ToNumberFree(JSContext *ctx, JSValue val); static int JS_GetOwnPropertyInternal(JSContext *ctx, JSPropertyDescriptor *desc, JSObject *p, JSAtom prop); static void js_free_desc(JSContext *ctx, JSPropertyDescriptor *desc); static void async_func_mark(JSRuntime *rt, JSAsyncFunctionState *s, JS_MarkFunc *mark_func); static void JS_AddIntrinsicBasicObjects(JSContext *ctx); static void js_free_shape(JSRuntime *rt, JSShape *sh); static void js_free_shape_null(JSRuntime *rt, JSShape *sh); static int js_shape_prepare_update(JSContext *ctx, JSObject *p, JSShapeProperty **pprs); static int init_shape_hash(JSRuntime *rt); static __exception int js_get_length32(JSContext *ctx, uint32_t *pres, JSValueConst obj); static __exception int js_get_length64(JSContext *ctx, int64_t *pres, JSValueConst obj); static void free_arg_list(JSContext *ctx, JSValue *tab, uint32_t len); static JSValue *build_arg_list(JSContext *ctx, uint32_t *plen, JSValueConst array_arg); static BOOL js_get_fast_array(JSContext *ctx, JSValueConst obj, JSValue **arrpp, uint32_t *countp); static JSValue JS_CreateAsyncFromSyncIterator(JSContext *ctx, JSValueConst sync_iter); static void js_c_function_data_finalizer(JSRuntime *rt, JSValue val); static void js_c_function_data_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func); static JSValue js_c_function_data_call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_val, int argc, JSValueConst *argv, int flags); static JSAtom js_symbol_to_atom(JSContext *ctx, JSValue val); static void add_gc_object(JSRuntime *rt, JSGCObjectHeader *h, JSGCObjectTypeEnum type); static void remove_gc_object(JSGCObjectHeader *h); static void js_async_function_free0(JSRuntime *rt, JSAsyncFunctionData *s); static int js_instantiate_prototype(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque); static int js_module_ns_autoinit(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque); static int JS_InstantiateFunctionListItem(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque); void JS_SetUncatchableError(JSContext *ctx, JSValueConst val, BOOL flag); static const JSClassExoticMethods js_arguments_exotic_methods; static const JSClassExoticMethods js_string_exotic_methods; static const JSClassExoticMethods js_proxy_exotic_methods; static const JSClassExoticMethods js_module_ns_exotic_methods; static JSClassID js_class_id_alloc = JS_CLASS_INIT_COUNT; static void js_trigger_gc(JSRuntime *rt, size_t size) { BOOL force_gc; #ifdef FORCE_GC_AT_MALLOC force_gc = TRUE; #else force_gc = ((rt->malloc_state.malloc_size + size) > rt->malloc_gc_threshold); #endif if (force_gc) { #ifdef DUMP_GC printf("GC: size=%" PRIu64 "\n", (uint64_t)rt->malloc_state.malloc_size); #endif JS_RunGC(rt); rt->malloc_gc_threshold = rt->malloc_state.malloc_size + (rt->malloc_state.malloc_size >> 1); } } static size_t js_malloc_usable_size_unknown(const void *ptr) { return 0; } void *js_malloc_rt(JSRuntime *rt, size_t size) { return rt->mf.js_malloc(&rt->malloc_state, size); } void js_free_rt(JSRuntime *rt, void *ptr) { rt->mf.js_free(&rt->malloc_state, ptr); } void *js_realloc_rt(JSRuntime *rt, void *ptr, size_t size) { return rt->mf.js_realloc(&rt->malloc_state, ptr, size); } size_t js_malloc_usable_size_rt(JSRuntime *rt, const void *ptr) { return rt->mf.js_malloc_usable_size(ptr); } void *js_mallocz_rt(JSRuntime *rt, size_t size) { void *ptr; ptr = js_malloc_rt(rt, size); if (!ptr) return NULL; return memset(ptr, 0, size); } #ifdef CONFIG_BIGNUM /* called by libbf */ static void *js_bf_realloc(void *opaque, void *ptr, size_t size) { JSRuntime *rt = opaque; return js_realloc_rt(rt, ptr, size); } #endif /* CONFIG_BIGNUM */ /* Throw out of memory in case of error */ void *js_malloc(JSContext *ctx, size_t size) { void *ptr; ptr = js_malloc_rt(ctx->rt, size); if (unlikely(!ptr)) { JS_ThrowOutOfMemory(ctx); return NULL; } return ptr; } /* Throw out of memory in case of error */ void *js_mallocz(JSContext *ctx, size_t size) { void *ptr; ptr = js_mallocz_rt(ctx->rt, size); if (unlikely(!ptr)) { JS_ThrowOutOfMemory(ctx); return NULL; } return ptr; } void js_free(JSContext *ctx, void *ptr) { js_free_rt(ctx->rt, ptr); } /* Throw out of memory in case of error */ void *js_realloc(JSContext *ctx, void *ptr, size_t size) { void *ret; ret = js_realloc_rt(ctx->rt, ptr, size); if (unlikely(!ret && size != 0)) { JS_ThrowOutOfMemory(ctx); return NULL; } return ret; } /* store extra allocated size in *pslack if successful */ void *js_realloc2(JSContext *ctx, void *ptr, size_t size, size_t *pslack) { void *ret; ret = js_realloc_rt(ctx->rt, ptr, size); if (unlikely(!ret && size != 0)) { JS_ThrowOutOfMemory(ctx); return NULL; } if (pslack) { size_t new_size = js_malloc_usable_size_rt(ctx->rt, ret); *pslack = (new_size > size) ? new_size - size : 0; } return ret; } size_t js_malloc_usable_size(JSContext *ctx, const void *ptr) { return js_malloc_usable_size_rt(ctx->rt, ptr); } /* Throw out of memory exception in case of error */ char *js_strndup(JSContext *ctx, const char *s, size_t n) { char *ptr; ptr = js_malloc(ctx, n + 1); if (ptr) { memcpy(ptr, s, n); ptr[n] = '\0'; } return ptr; } char *js_strdup(JSContext *ctx, const char *str) { return js_strndup(ctx, str, strlen(str)); } static no_inline int js_realloc_array(JSContext *ctx, void **parray, int elem_size, int *psize, int req_size) { int new_size; size_t slack; void *new_array; /* XXX: potential arithmetic overflow */ new_size = max_int(req_size, *psize * 3 / 2); new_array = js_realloc2(ctx, *parray, new_size * elem_size, &slack); if (!new_array) return -1; new_size += slack / elem_size; *psize = new_size; *parray = new_array; return 0; } /* resize the array and update its size if req_size > *psize */ static inline int js_resize_array(JSContext *ctx, void **parray, int elem_size, int *psize, int req_size) { if (unlikely(req_size > *psize)) return js_realloc_array(ctx, parray, elem_size, psize, req_size); else return 0; } static inline void js_dbuf_init(JSContext *ctx, DynBuf *s) { dbuf_init2(s, ctx->rt, (DynBufReallocFunc *)js_realloc_rt); } static inline int is_digit(int c) { return c >= '0' && c <= '9'; } typedef struct JSClassShortDef { JSAtom class_name; JSClassFinalizer *finalizer; JSClassGCMark *gc_mark; } JSClassShortDef; static JSClassShortDef const js_std_class_def[] = { { JS_ATOM_Object, NULL, NULL }, /* JS_CLASS_OBJECT */ { JS_ATOM_Array, js_array_finalizer, js_array_mark }, /* JS_CLASS_ARRAY */ { JS_ATOM_Error, NULL, NULL }, /* JS_CLASS_ERROR */ { JS_ATOM_Number, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_NUMBER */ { JS_ATOM_String, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_STRING */ { JS_ATOM_Boolean, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BOOLEAN */ { JS_ATOM_Symbol, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_SYMBOL */ { JS_ATOM_Arguments, js_array_finalizer, js_array_mark }, /* JS_CLASS_ARGUMENTS */ { JS_ATOM_Arguments, NULL, NULL }, /* JS_CLASS_MAPPED_ARGUMENTS */ { JS_ATOM_Date, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_DATE */ { JS_ATOM_Object, NULL, NULL }, /* JS_CLASS_MODULE_NS */ { JS_ATOM_Function, js_c_function_finalizer, js_c_function_mark }, /* JS_CLASS_C_FUNCTION */ { JS_ATOM_Function, js_bytecode_function_finalizer, js_bytecode_function_mark }, /* JS_CLASS_BYTECODE_FUNCTION */ { JS_ATOM_Function, js_bound_function_finalizer, js_bound_function_mark }, /* JS_CLASS_BOUND_FUNCTION */ { JS_ATOM_Function, js_c_function_data_finalizer, js_c_function_data_mark }, /* JS_CLASS_C_FUNCTION_DATA */ { JS_ATOM_GeneratorFunction, js_bytecode_function_finalizer, js_bytecode_function_mark }, /* JS_CLASS_GENERATOR_FUNCTION */ { JS_ATOM_ForInIterator, js_for_in_iterator_finalizer, js_for_in_iterator_mark }, /* JS_CLASS_FOR_IN_ITERATOR */ { JS_ATOM_RegExp, js_regexp_finalizer, NULL }, /* JS_CLASS_REGEXP */ { JS_ATOM_ArrayBuffer, js_array_buffer_finalizer, NULL }, /* JS_CLASS_ARRAY_BUFFER */ { JS_ATOM_SharedArrayBuffer, js_array_buffer_finalizer, NULL }, /* JS_CLASS_SHARED_ARRAY_BUFFER */ { JS_ATOM_Uint8ClampedArray, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT8C_ARRAY */ { JS_ATOM_Int8Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_INT8_ARRAY */ { JS_ATOM_Uint8Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT8_ARRAY */ { JS_ATOM_Int16Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_INT16_ARRAY */ { JS_ATOM_Uint16Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT16_ARRAY */ { JS_ATOM_Int32Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_INT32_ARRAY */ { JS_ATOM_Uint32Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT32_ARRAY */ #ifdef CONFIG_BIGNUM { JS_ATOM_BigInt64Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_BIG_INT64_ARRAY */ { JS_ATOM_BigUint64Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_BIG_UINT64_ARRAY */ #endif { JS_ATOM_Float32Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_FLOAT32_ARRAY */ { JS_ATOM_Float64Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_FLOAT64_ARRAY */ { JS_ATOM_DataView, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_DATAVIEW */ #ifdef CONFIG_BIGNUM { JS_ATOM_BigInt, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BIG_INT */ { JS_ATOM_BigFloat, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BIG_FLOAT */ { JS_ATOM_BigFloatEnv, js_float_env_finalizer, NULL }, /* JS_CLASS_FLOAT_ENV */ { JS_ATOM_BigDecimal, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BIG_DECIMAL */ { JS_ATOM_OperatorSet, js_operator_set_finalizer, js_operator_set_mark }, /* JS_CLASS_OPERATOR_SET */ #endif { JS_ATOM_Map, js_map_finalizer, js_map_mark }, /* JS_CLASS_MAP */ { JS_ATOM_Set, js_map_finalizer, js_map_mark }, /* JS_CLASS_SET */ { JS_ATOM_WeakMap, js_map_finalizer, js_map_mark }, /* JS_CLASS_WEAKMAP */ { JS_ATOM_WeakSet, js_map_finalizer, js_map_mark }, /* JS_CLASS_WEAKSET */ { JS_ATOM_Map_Iterator, js_map_iterator_finalizer, js_map_iterator_mark }, /* JS_CLASS_MAP_ITERATOR */ { JS_ATOM_Set_Iterator, js_map_iterator_finalizer, js_map_iterator_mark }, /* JS_CLASS_SET_ITERATOR */ { JS_ATOM_Array_Iterator, js_array_iterator_finalizer, js_array_iterator_mark }, /* JS_CLASS_ARRAY_ITERATOR */ { JS_ATOM_String_Iterator, js_array_iterator_finalizer, js_array_iterator_mark }, /* JS_CLASS_STRING_ITERATOR */ { JS_ATOM_RegExp_String_Iterator, js_regexp_string_iterator_finalizer, js_regexp_string_iterator_mark }, /* JS_CLASS_REGEXP_STRING_ITERATOR */ { JS_ATOM_Generator, js_generator_finalizer, js_generator_mark }, /* JS_CLASS_GENERATOR */ }; static int init_class_range(JSRuntime *rt, JSClassShortDef const *tab, int start, int count) { JSClassDef cm_s, *cm = &cm_s; int i, class_id; for(i = 0; i < count; i++) { class_id = i + start; memset(cm, 0, sizeof(*cm)); cm->finalizer = tab[i].finalizer; cm->gc_mark = tab[i].gc_mark; if (JS_NewClass1(rt, class_id, cm, tab[i].class_name) < 0) return -1; } return 0; } #ifdef CONFIG_BIGNUM static JSValue JS_ThrowUnsupportedOperation(JSContext *ctx) { return JS_ThrowTypeError(ctx, "unsupported operation"); } static JSValue invalid_to_string(JSContext *ctx, JSValueConst val) { return JS_ThrowUnsupportedOperation(ctx); } static JSValue invalid_from_string(JSContext *ctx, const char *buf, int radix, int flags, slimb_t *pexponent) { return JS_NAN; } static int invalid_unary_arith(JSContext *ctx, JSValue *pres, OPCodeEnum op, JSValue op1) { JS_FreeValue(ctx, op1); JS_ThrowUnsupportedOperation(ctx); return -1; } static int invalid_binary_arith(JSContext *ctx, OPCodeEnum op, JSValue *pres, JSValue op1, JSValue op2) { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); JS_ThrowUnsupportedOperation(ctx); return -1; } static JSValue invalid_mul_pow10_to_float64(JSContext *ctx, const bf_t *a, int64_t exponent) { return JS_ThrowUnsupportedOperation(ctx); } static int invalid_mul_pow10(JSContext *ctx, JSValue *sp) { JS_ThrowUnsupportedOperation(ctx); return -1; } static void set_dummy_numeric_ops(JSNumericOperations *ops) { ops->to_string = invalid_to_string; ops->from_string = invalid_from_string; ops->unary_arith = invalid_unary_arith; ops->binary_arith = invalid_binary_arith; ops->mul_pow10_to_float64 = invalid_mul_pow10_to_float64; ops->mul_pow10 = invalid_mul_pow10; } #endif /* CONFIG_BIGNUM */ #if !defined(CONFIG_STACK_CHECK) /* no stack limitation */ static inline uint8_t *js_get_stack_pointer(void) { return NULL; } static inline BOOL js_check_stack_overflow(JSRuntime *rt, size_t alloca_size) { return FALSE; } #else /* Note: OS and CPU dependent */ static inline uint8_t *js_get_stack_pointer(void) { return __builtin_frame_address(0); } static inline BOOL js_check_stack_overflow(JSRuntime *rt, size_t alloca_size) { size_t size; size = rt->stack_top - js_get_stack_pointer(); return unlikely((size + alloca_size) > rt->stack_size); } #endif JSRuntime *JS_NewRuntime2(const JSMallocFunctions *mf, void *opaque) { JSRuntime *rt; JSMallocState ms; memset(&ms, 0, sizeof(ms)); ms.opaque = opaque; ms.malloc_limit = -1; rt = mf->js_malloc(&ms, sizeof(JSRuntime)); if (!rt) return NULL; memset(rt, 0, sizeof(*rt)); rt->mf = *mf; if (!rt->mf.js_malloc_usable_size) { /* use dummy function if none provided */ rt->mf.js_malloc_usable_size = js_malloc_usable_size_unknown; } rt->malloc_state = ms; rt->malloc_gc_threshold = 256 * 1024; #ifdef CONFIG_BIGNUM bf_context_init(&rt->bf_ctx, js_bf_realloc, rt); set_dummy_numeric_ops(&rt->bigint_ops); set_dummy_numeric_ops(&rt->bigfloat_ops); set_dummy_numeric_ops(&rt->bigdecimal_ops); #endif init_list_head(&rt->context_list); init_list_head(&rt->gc_obj_list); init_list_head(&rt->gc_zero_ref_count_list); rt->gc_phase = JS_GC_PHASE_NONE; #ifdef DUMP_LEAKS init_list_head(&rt->string_list); #endif init_list_head(&rt->job_list); if (JS_InitAtoms(rt)) goto fail; /* create the object, array and function classes */ if (init_class_range(rt, js_std_class_def, JS_CLASS_OBJECT, countof(js_std_class_def)) < 0) goto fail; rt->class_array[JS_CLASS_ARGUMENTS].exotic = &js_arguments_exotic_methods; rt->class_array[JS_CLASS_STRING].exotic = &js_string_exotic_methods; rt->class_array[JS_CLASS_MODULE_NS].exotic = &js_module_ns_exotic_methods; rt->class_array[JS_CLASS_C_FUNCTION].call = js_call_c_function; rt->class_array[JS_CLASS_C_FUNCTION_DATA].call = js_c_function_data_call; rt->class_array[JS_CLASS_BOUND_FUNCTION].call = js_call_bound_function; rt->class_array[JS_CLASS_GENERATOR_FUNCTION].call = js_generator_function_call; if (init_shape_hash(rt)) goto fail; rt->stack_top = js_get_stack_pointer(); rt->stack_size = JS_DEFAULT_STACK_SIZE; rt->current_exception = JS_NULL; return rt; fail: JS_FreeRuntime(rt); return NULL; } void *JS_GetRuntimeOpaque(JSRuntime *rt) { return rt->user_opaque; } void JS_SetRuntimeOpaque(JSRuntime *rt, void *opaque) { rt->user_opaque = opaque; } /* default memory allocation functions with memory limitation */ static inline size_t js_def_malloc_usable_size(void *ptr) { #if defined(__APPLE__) return malloc_size(ptr); #elif defined(_WIN32) return _msize(ptr); #elif defined(EMSCRIPTEN) return 0; #elif defined(__linux__) return malloc_usable_size(ptr); #else /* change this to `return 0;` if compilation fails */ return malloc_usable_size(ptr); #endif } static void *js_def_malloc(JSMallocState *s, size_t size) { void *ptr; /* Do not allocate zero bytes: behavior is platform dependent */ assert(size != 0); if (unlikely(s->malloc_size + size > s->malloc_limit)) return NULL; ptr = malloc(size); if (!ptr) return NULL; s->malloc_count++; s->malloc_size += js_def_malloc_usable_size(ptr) + MALLOC_OVERHEAD; return ptr; } static void js_def_free(JSMallocState *s, void *ptr) { if (!ptr) return; s->malloc_count--; s->malloc_size -= js_def_malloc_usable_size(ptr) + MALLOC_OVERHEAD; free(ptr); } static void *js_def_realloc(JSMallocState *s, void *ptr, size_t size) { size_t old_size; if (!ptr) { if (size == 0) return NULL; return js_def_malloc(s, size); } old_size = js_def_malloc_usable_size(ptr); if (size == 0) { s->malloc_count--; s->malloc_size -= old_size + MALLOC_OVERHEAD; free(ptr); return NULL; } if (s->malloc_size + size - old_size > s->malloc_limit) return NULL; ptr = realloc(ptr, size); if (!ptr) return NULL; s->malloc_size += js_def_malloc_usable_size(ptr) - old_size; return ptr; } static const JSMallocFunctions def_malloc_funcs = { js_def_malloc, js_def_free, js_def_realloc, #if defined(__APPLE__) malloc_size, #elif defined(_WIN32) (size_t (*)(const void *))_msize, #elif defined(EMSCRIPTEN) NULL, #elif defined(__linux__) (size_t (*)(const void *))malloc_usable_size, #else /* change this to `NULL,` if compilation fails */ malloc_usable_size, #endif }; JSRuntime *JS_NewRuntime(void) { return JS_NewRuntime2(&def_malloc_funcs, NULL); } void JS_SetMemoryLimit(JSRuntime *rt, size_t limit) { rt->malloc_state.malloc_limit = limit; } /* use -1 to disable automatic GC */ void JS_SetGCThreshold(JSRuntime *rt, size_t gc_threshold) { rt->malloc_gc_threshold = gc_threshold; } #define malloc(s) malloc_is_forbidden(s) #define free(p) free_is_forbidden(p) #define realloc(p,s) realloc_is_forbidden(p,s) void JS_SetInterruptHandler(JSRuntime *rt, JSInterruptHandler *cb, void *opaque) { rt->interrupt_handler = cb; rt->interrupt_opaque = opaque; } void JS_SetCanBlock(JSRuntime *rt, BOOL can_block) { rt->can_block = can_block; } void JS_SetSharedArrayBufferFunctions(JSRuntime *rt, const JSSharedArrayBufferFunctions *sf) { rt->sab_funcs = *sf; } /* return 0 if OK, < 0 if exception */ int JS_EnqueueJob(JSContext *ctx, JSJobFunc *job_func, int argc, JSValueConst *argv) { JSRuntime *rt = ctx->rt; JSJobEntry *e; int i; e = js_malloc(ctx, sizeof(*e) + argc * sizeof(JSValue)); if (!e) return -1; e->ctx = ctx; e->job_func = job_func; e->argc = argc; for(i = 0; i < argc; i++) { e->argv[i] = JS_DupValue(ctx, argv[i]); } list_add_tail(&e->link, &rt->job_list); return 0; } BOOL JS_IsJobPending(JSRuntime *rt) { return !list_empty(&rt->job_list); } /* return < 0 if exception, 0 if no job pending, 1 if a job was executed successfully. the context of the job is stored in '*pctx' */ int JS_ExecutePendingJob(JSRuntime *rt, JSContext **pctx) { JSContext *ctx; JSJobEntry *e; JSValue res; int i, ret; if (list_empty(&rt->job_list)) { *pctx = NULL; return 0; } /* get the first pending job and execute it */ e = list_entry(rt->job_list.next, JSJobEntry, link); list_del(&e->link); ctx = e->ctx; res = e->job_func(e->ctx, e->argc, (JSValueConst *)e->argv); for(i = 0; i < e->argc; i++) JS_FreeValue(ctx, e->argv[i]); if (JS_IsException(res)) ret = -1; else ret = 1; JS_FreeValue(ctx, res); js_free(ctx, e); *pctx = ctx; return ret; } static inline uint32_t atom_get_free(const JSAtomStruct *p) { return (uintptr_t)p >> 1; } static inline BOOL atom_is_free(const JSAtomStruct *p) { return (uintptr_t)p & 1; } static inline JSAtomStruct *atom_set_free(uint32_t v) { return (JSAtomStruct *)(((uintptr_t)v << 1) | 1); } /* Note: the string contents are uninitialized */ static JSString *js_alloc_string_rt(JSRuntime *rt, int max_len, int is_wide_char) { JSString *str; str = js_malloc_rt(rt, sizeof(JSString) + (max_len << is_wide_char) + 1 - is_wide_char); if (unlikely(!str)) return NULL; str->header.ref_count = 1; str->is_wide_char = is_wide_char; str->len = max_len; str->atom_type = 0; str->hash = 0; /* optional but costless */ str->hash_next = 0; /* optional */ #ifdef DUMP_LEAKS list_add_tail(&str->link, &rt->string_list); #endif return str; } static JSString *js_alloc_string(JSContext *ctx, int max_len, int is_wide_char) { JSString *p; p = js_alloc_string_rt(ctx->rt, max_len, is_wide_char); if (unlikely(!p)) { JS_ThrowOutOfMemory(ctx); return NULL; } return p; } /* same as JS_FreeValueRT() but faster */ static inline void js_free_string(JSRuntime *rt, JSString *str) { if (--str->header.ref_count <= 0) { if (str->atom_type) { JS_FreeAtomStruct(rt, str); } else { #ifdef DUMP_LEAKS list_del(&str->link); #endif js_free_rt(rt, str); } } } void JS_SetRuntimeInfo(JSRuntime *rt, const char *s) { if (rt) rt->rt_info = s; } void JS_FreeRuntime(JSRuntime *rt) { struct list_head *el, *el1; int i; JS_FreeValueRT(rt, rt->current_exception); list_for_each_safe(el, el1, &rt->job_list) { JSJobEntry *e = list_entry(el, JSJobEntry, link); for(i = 0; i < e->argc; i++) JS_FreeValueRT(rt, e->argv[i]); js_free_rt(rt, e); } init_list_head(&rt->job_list); JS_RunGC(rt); #ifdef DUMP_LEAKS /* leaking objects */ { BOOL header_done; JSGCObjectHeader *p; int count; /* remove the internal refcounts to display only the object referenced externally */ list_for_each(el, &rt->gc_obj_list) { p = list_entry(el, JSGCObjectHeader, link); p->mark = 0; } gc_decref(rt); header_done = FALSE; list_for_each(el, &rt->gc_obj_list) { p = list_entry(el, JSGCObjectHeader, link); if (p->ref_count != 0) { if (!header_done) { printf("Object leaks:\n"); JS_DumpObjectHeader(rt); header_done = TRUE; } JS_DumpGCObject(rt, p); } } count = 0; list_for_each(el, &rt->gc_obj_list) { p = list_entry(el, JSGCObjectHeader, link); if (p->ref_count == 0) { count++; } } if (count != 0) printf("Secondary object leaks: %d\n", count); } #endif assert(list_empty(&rt->gc_obj_list)); /* free the classes */ for(i = 0; i < rt->class_count; i++) { JSClass *cl = &rt->class_array[i]; if (cl->class_id != 0) { JS_FreeAtomRT(rt, cl->class_name); } } js_free_rt(rt, rt->class_array); #ifdef CONFIG_BIGNUM bf_context_end(&rt->bf_ctx); #endif #ifdef DUMP_LEAKS /* only the atoms defined in JS_InitAtoms() should be left */ { BOOL header_done = FALSE; for(i = 0; i < rt->atom_size; i++) { JSAtomStruct *p = rt->atom_array[i]; if (!atom_is_free(p) /* && p->str*/) { if (i >= JS_ATOM_END || p->header.ref_count != 1) { if (!header_done) { header_done = TRUE; if (rt->rt_info) { printf("%s:1: atom leakage:", rt->rt_info); } else { printf("Atom leaks:\n" " %6s %6s %s\n", "ID", "REFCNT", "NAME"); } } if (rt->rt_info) { printf(" "); } else { printf(" %6u %6u ", i, p->header.ref_count); } switch (p->atom_type) { case JS_ATOM_TYPE_STRING: JS_DumpString(rt, p); break; case JS_ATOM_TYPE_GLOBAL_SYMBOL: printf("Symbol.for("); JS_DumpString(rt, p); printf(")"); break; case JS_ATOM_TYPE_SYMBOL: if (p->hash == JS_ATOM_HASH_SYMBOL) { printf("Symbol("); JS_DumpString(rt, p); printf(")"); } else { printf("Private("); JS_DumpString(rt, p); printf(")"); } break; } if (rt->rt_info) { printf(":%u", p->header.ref_count); } else { printf("\n"); } } } } if (rt->rt_info && header_done) printf("\n"); } #endif /* free the atoms */ for(i = 0; i < rt->atom_size; i++) { JSAtomStruct *p = rt->atom_array[i]; if (!atom_is_free(p)) { #ifdef DUMP_LEAKS list_del(&p->link); #endif js_free_rt(rt, p); } } js_free_rt(rt, rt->atom_array); js_free_rt(rt, rt->atom_hash); js_free_rt(rt, rt->shape_hash); #ifdef DUMP_LEAKS if (!list_empty(&rt->string_list)) { if (rt->rt_info) { printf("%s:1: string leakage:", rt->rt_info); } else { printf("String leaks:\n" " %6s %s\n", "REFCNT", "VALUE"); } list_for_each_safe(el, el1, &rt->string_list) { JSString *str = list_entry(el, JSString, link); if (rt->rt_info) { printf(" "); } else { printf(" %6u ", str->header.ref_count); } JS_DumpString(rt, str); if (rt->rt_info) { printf(":%u", str->header.ref_count); } else { printf("\n"); } list_del(&str->link); js_free_rt(rt, str); } if (rt->rt_info) printf("\n"); } { JSMallocState *s = &rt->malloc_state; if (s->malloc_count > 1) { if (rt->rt_info) printf("%s:1: ", rt->rt_info); printf("Memory leak: %"PRIu64" bytes lost in %"PRIu64" block%s\n", (uint64_t)(s->malloc_size - sizeof(JSRuntime)), (uint64_t)(s->malloc_count - 1), &"s"[s->malloc_count == 2]); } } #endif { JSMallocState ms = rt->malloc_state; rt->mf.js_free(&ms, rt); } } JSContext *JS_NewContextRaw(JSRuntime *rt) { JSContext *ctx; int i; ctx = js_mallocz_rt(rt, sizeof(JSContext)); if (!ctx) return NULL; ctx->header.ref_count = 1; add_gc_object(rt, &ctx->header, JS_GC_OBJ_TYPE_JS_CONTEXT); ctx->class_proto = js_malloc_rt(rt, sizeof(ctx->class_proto[0]) * rt->class_count); if (!ctx->class_proto) { js_free_rt(rt, ctx); return NULL; } ctx->rt = rt; list_add_tail(&ctx->link, &rt->context_list); #ifdef CONFIG_BIGNUM ctx->bf_ctx = &rt->bf_ctx; ctx->fp_env.prec = 113; ctx->fp_env.flags = bf_set_exp_bits(15) | BF_RNDN | BF_FLAG_SUBNORMAL; #endif for(i = 0; i < rt->class_count; i++) ctx->class_proto[i] = JS_NULL; ctx->array_ctor = JS_NULL; ctx->regexp_ctor = JS_NULL; ctx->promise_ctor = JS_NULL; init_list_head(&ctx->loaded_modules); JS_AddIntrinsicBasicObjects(ctx); return ctx; } JSContext *JS_NewContext(JSRuntime *rt) { JSContext *ctx; ctx = JS_NewContextRaw(rt); if (!ctx) return NULL; JS_AddIntrinsicBaseObjects(ctx); JS_AddIntrinsicDate(ctx); JS_AddIntrinsicEval(ctx); JS_AddIntrinsicStringNormalize(ctx); JS_AddIntrinsicRegExp(ctx); JS_AddIntrinsicJSON(ctx); JS_AddIntrinsicProxy(ctx); JS_AddIntrinsicMapSet(ctx); JS_AddIntrinsicTypedArrays(ctx); JS_AddIntrinsicPromise(ctx); #ifdef CONFIG_BIGNUM JS_AddIntrinsicBigInt(ctx); #endif return ctx; } void *JS_GetContextOpaque(JSContext *ctx) { return ctx->user_opaque; } void JS_SetContextOpaque(JSContext *ctx, void *opaque) { ctx->user_opaque = opaque; } /* set the new value and free the old value after (freeing the value can reallocate the object data) */ static inline void set_value(JSContext *ctx, JSValue *pval, JSValue new_val) { JSValue old_val; old_val = *pval; *pval = new_val; JS_FreeValue(ctx, old_val); } void JS_SetClassProto(JSContext *ctx, JSClassID class_id, JSValue obj) { JSRuntime *rt = ctx->rt; assert(class_id < rt->class_count); set_value(ctx, &ctx->class_proto[class_id], obj); } JSValue JS_GetClassProto(JSContext *ctx, JSClassID class_id) { JSRuntime *rt = ctx->rt; assert(class_id < rt->class_count); return JS_DupValue(ctx, ctx->class_proto[class_id]); } typedef enum JSFreeModuleEnum { JS_FREE_MODULE_ALL, JS_FREE_MODULE_NOT_RESOLVED, JS_FREE_MODULE_NOT_EVALUATED, } JSFreeModuleEnum; /* XXX: would be more efficient with separate module lists */ static void js_free_modules(JSContext *ctx, JSFreeModuleEnum flag) { struct list_head *el, *el1; list_for_each_safe(el, el1, &ctx->loaded_modules) { JSModuleDef *m = list_entry(el, JSModuleDef, link); if (flag == JS_FREE_MODULE_ALL || (flag == JS_FREE_MODULE_NOT_RESOLVED && !m->resolved) || (flag == JS_FREE_MODULE_NOT_EVALUATED && !m->evaluated)) { js_free_module_def(ctx, m); } } } JSContext *JS_DupContext(JSContext *ctx) { ctx->header.ref_count++; return ctx; } /* used by the GC */ static void JS_MarkContext(JSRuntime *rt, JSContext *ctx, JS_MarkFunc *mark_func) { int i; struct list_head *el; /* modules are not seen by the GC, so we directly mark the objects referenced by each module */ list_for_each(el, &ctx->loaded_modules) { JSModuleDef *m = list_entry(el, JSModuleDef, link); js_mark_module_def(rt, m, mark_func); } JS_MarkValue(rt, ctx->global_obj, mark_func); JS_MarkValue(rt, ctx->global_var_obj, mark_func); JS_MarkValue(rt, ctx->throw_type_error, mark_func); JS_MarkValue(rt, ctx->eval_obj, mark_func); JS_MarkValue(rt, ctx->array_proto_values, mark_func); for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) { JS_MarkValue(rt, ctx->native_error_proto[i], mark_func); } for(i = 0; i < rt->class_count; i++) { JS_MarkValue(rt, ctx->class_proto[i], mark_func); } JS_MarkValue(rt, ctx->iterator_proto, mark_func); JS_MarkValue(rt, ctx->async_iterator_proto, mark_func); JS_MarkValue(rt, ctx->promise_ctor, mark_func); JS_MarkValue(rt, ctx->array_ctor, mark_func); JS_MarkValue(rt, ctx->regexp_ctor, mark_func); JS_MarkValue(rt, ctx->function_ctor, mark_func); JS_MarkValue(rt, ctx->function_proto, mark_func); if (ctx->array_shape) mark_func(rt, &ctx->array_shape->header); } void JS_FreeContext(JSContext *ctx) { JSRuntime *rt = ctx->rt; int i; if (--ctx->header.ref_count > 0) return; assert(ctx->header.ref_count == 0); #ifdef DUMP_ATOMS JS_DumpAtoms(ctx->rt); #endif #ifdef DUMP_SHAPES JS_DumpShapes(ctx->rt); #endif #ifdef DUMP_OBJECTS { struct list_head *el; JSGCObjectHeader *p; printf("JSObjects: {\n"); JS_DumpObjectHeader(ctx->rt); list_for_each(el, &rt->gc_obj_list) { p = list_entry(el, JSGCObjectHeader, link); JS_DumpGCObject(rt, p); } printf("}\n"); } #endif #ifdef DUMP_MEM { JSMemoryUsage stats; JS_ComputeMemoryUsage(rt, &stats); JS_DumpMemoryUsage(stdout, &stats, rt); } #endif js_free_modules(ctx, JS_FREE_MODULE_ALL); JS_FreeValue(ctx, ctx->global_obj); JS_FreeValue(ctx, ctx->global_var_obj); JS_FreeValue(ctx, ctx->throw_type_error); JS_FreeValue(ctx, ctx->eval_obj); JS_FreeValue(ctx, ctx->array_proto_values); for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) { JS_FreeValue(ctx, ctx->native_error_proto[i]); } for(i = 0; i < rt->class_count; i++) { JS_FreeValue(ctx, ctx->class_proto[i]); } js_free_rt(rt, ctx->class_proto); JS_FreeValue(ctx, ctx->iterator_proto); JS_FreeValue(ctx, ctx->async_iterator_proto); JS_FreeValue(ctx, ctx->promise_ctor); JS_FreeValue(ctx, ctx->array_ctor); JS_FreeValue(ctx, ctx->regexp_ctor); JS_FreeValue(ctx, ctx->function_ctor); JS_FreeValue(ctx, ctx->function_proto); js_free_shape_null(ctx->rt, ctx->array_shape); list_del(&ctx->link); remove_gc_object(&ctx->header); js_free_rt(ctx->rt, ctx); } JSRuntime *JS_GetRuntime(JSContext *ctx) { return ctx->rt; } void JS_SetMaxStackSize(JSRuntime *rt, size_t stack_size) { rt->stack_size = stack_size; } static inline BOOL is_strict_mode(JSContext *ctx) { JSStackFrame *sf = ctx->rt->current_stack_frame; return (sf && (sf->js_mode & JS_MODE_STRICT)); } #ifdef CONFIG_BIGNUM static inline BOOL is_math_mode(JSContext *ctx) { JSStackFrame *sf = ctx->rt->current_stack_frame; return (sf && (sf->js_mode & JS_MODE_MATH)); } #endif /* JSAtom support */ #define JS_ATOM_TAG_INT (1U << 31) #define JS_ATOM_MAX_INT (JS_ATOM_TAG_INT - 1) #define JS_ATOM_MAX ((1U << 30) - 1) /* return the max count from the hash size */ #define JS_ATOM_COUNT_RESIZE(n) ((n) * 2) static inline BOOL __JS_AtomIsConst(JSAtom v) { #if defined(DUMP_LEAKS) && DUMP_LEAKS > 1 return (int32_t)v <= 0; #else return (int32_t)v < JS_ATOM_END; #endif } static inline BOOL __JS_AtomIsTaggedInt(JSAtom v) { return (v & JS_ATOM_TAG_INT) != 0; } static inline JSAtom __JS_AtomFromUInt32(uint32_t v) { return v | JS_ATOM_TAG_INT; } static inline uint32_t __JS_AtomToUInt32(JSAtom atom) { return atom & ~JS_ATOM_TAG_INT; } static inline int is_num(int c) { return c >= '0' && c <= '9'; } /* return TRUE if the string is a number n with 0 <= n <= 2^32-1 */ static inline BOOL is_num_string(uint32_t *pval, const JSString *p) { uint32_t n; uint64_t n64; int c, i, len; len = p->len; if (len == 0 || len > 10) return FALSE; if (p->is_wide_char) c = p->u.str16[0]; else c = p->u.str8[0]; if (is_num(c)) { if (c == '0') { if (len != 1) return FALSE; n = 0; } else { n = c - '0'; for(i = 1; i < len; i++) { if (p->is_wide_char) c = p->u.str16[i]; else c = p->u.str8[i]; if (!is_num(c)) return FALSE; n64 = (uint64_t)n * 10 + (c - '0'); if ((n64 >> 32) != 0) return FALSE; n = n64; } } *pval = n; return TRUE; } else { return FALSE; } } /* XXX: could use faster version ? */ static inline uint32_t hash_string8(const uint8_t *str, size_t len, uint32_t h) { size_t i; for(i = 0; i < len; i++) h = h * 263 + str[i]; return h; } static inline uint32_t hash_string16(const uint16_t *str, size_t len, uint32_t h) { size_t i; for(i = 0; i < len; i++) h = h * 263 + str[i]; return h; } static uint32_t hash_string(const JSString *str, uint32_t h) { if (str->is_wide_char) h = hash_string16(str->u.str16, str->len, h); else h = hash_string8(str->u.str8, str->len, h); return h; } static __maybe_unused void JS_DumpString(JSRuntime *rt, const JSString *p) { int i, c, sep; if (p == NULL) { printf(""); return; } printf("%d", p->header.ref_count); sep = (p->header.ref_count == 1) ? '\"' : '\''; putchar(sep); for(i = 0; i < p->len; i++) { if (p->is_wide_char) c = p->u.str16[i]; else c = p->u.str8[i]; if (c == sep || c == '\\') { putchar('\\'); putchar(c); } else if (c >= ' ' && c <= 126) { putchar(c); } else if (c == '\n') { putchar('\\'); putchar('n'); } else { printf("\\u%04x", c); } } putchar(sep); } static __maybe_unused void JS_DumpAtoms(JSRuntime *rt) { JSAtomStruct *p; int h, i; /* This only dumps hashed atoms, not JS_ATOM_TYPE_SYMBOL atoms */ printf("JSAtom count=%d size=%d hash_size=%d:\n", rt->atom_count, rt->atom_size, rt->atom_hash_size); printf("JSAtom hash table: {\n"); for(i = 0; i < rt->atom_hash_size; i++) { h = rt->atom_hash[i]; if (h) { printf(" %d:", i); while (h) { p = rt->atom_array[h]; printf(" "); JS_DumpString(rt, p); h = p->hash_next; } printf("\n"); } } printf("}\n"); printf("JSAtom table: {\n"); for(i = 0; i < rt->atom_size; i++) { p = rt->atom_array[i]; if (!atom_is_free(p)) { printf(" %d: { %d %08x ", i, p->atom_type, p->hash); if (!(p->len == 0 && p->is_wide_char != 0)) JS_DumpString(rt, p); printf(" %d }\n", p->hash_next); } } printf("}\n"); } static int JS_ResizeAtomHash(JSRuntime *rt, int new_hash_size) { JSAtomStruct *p; uint32_t new_hash_mask, h, i, hash_next1, j, *new_hash; assert((new_hash_size & (new_hash_size - 1)) == 0); /* power of two */ new_hash_mask = new_hash_size - 1; new_hash = js_mallocz_rt(rt, sizeof(rt->atom_hash[0]) * new_hash_size); if (!new_hash) return -1; for(i = 0; i < rt->atom_hash_size; i++) { h = rt->atom_hash[i]; while (h != 0) { p = rt->atom_array[h]; hash_next1 = p->hash_next; /* add in new hash table */ j = p->hash & new_hash_mask; p->hash_next = new_hash[j]; new_hash[j] = h; h = hash_next1; } } js_free_rt(rt, rt->atom_hash); rt->atom_hash = new_hash; rt->atom_hash_size = new_hash_size; rt->atom_count_resize = JS_ATOM_COUNT_RESIZE(new_hash_size); // JS_DumpAtoms(rt); return 0; } static int JS_InitAtoms(JSRuntime *rt) { int i, len, atom_type; const char *p; rt->atom_hash_size = 0; rt->atom_hash = NULL; rt->atom_count = 0; rt->atom_size = 0; rt->atom_free_index = 0; if (JS_ResizeAtomHash(rt, 256)) /* there are at least 195 predefined atoms */ return -1; p = js_atom_init; for(i = 1; i < JS_ATOM_END; i++) { if (i == JS_ATOM_Private_brand) atom_type = JS_ATOM_TYPE_PRIVATE; else if (i >= JS_ATOM_Symbol_toPrimitive) atom_type = JS_ATOM_TYPE_SYMBOL; else atom_type = JS_ATOM_TYPE_STRING; len = strlen(p); if (__JS_NewAtomInit(rt, p, len, atom_type) == JS_ATOM_NULL) return -1; p = p + len + 1; } return 0; } static JSAtom JS_DupAtomRT(JSRuntime *rt, JSAtom v) { JSAtomStruct *p; if (!__JS_AtomIsConst(v)) { p = rt->atom_array[v]; p->header.ref_count++; } return v; } JSAtom JS_DupAtom(JSContext *ctx, JSAtom v) { JSRuntime *rt; JSAtomStruct *p; if (!__JS_AtomIsConst(v)) { rt = ctx->rt; p = rt->atom_array[v]; p->header.ref_count++; } return v; } static JSAtomKindEnum JS_AtomGetKind(JSContext *ctx, JSAtom v) { JSRuntime *rt; JSAtomStruct *p; rt = ctx->rt; if (__JS_AtomIsTaggedInt(v)) return JS_ATOM_KIND_STRING; p = rt->atom_array[v]; switch(p->atom_type) { case JS_ATOM_TYPE_STRING: return JS_ATOM_KIND_STRING; case JS_ATOM_TYPE_GLOBAL_SYMBOL: return JS_ATOM_KIND_SYMBOL; case JS_ATOM_TYPE_SYMBOL: switch(p->hash) { case JS_ATOM_HASH_SYMBOL: return JS_ATOM_KIND_SYMBOL; case JS_ATOM_HASH_PRIVATE: return JS_ATOM_KIND_PRIVATE; default: abort(); } default: abort(); } } static BOOL JS_AtomIsString(JSContext *ctx, JSAtom v) { return JS_AtomGetKind(ctx, v) == JS_ATOM_KIND_STRING; } static JSAtom js_get_atom_index(JSRuntime *rt, JSAtomStruct *p) { uint32_t i = p->hash_next; /* atom_index */ if (p->atom_type != JS_ATOM_TYPE_SYMBOL) { JSAtomStruct *p1; i = rt->atom_hash[p->hash & (rt->atom_hash_size - 1)]; p1 = rt->atom_array[i]; while (p1 != p) { assert(i != 0); i = p1->hash_next; p1 = rt->atom_array[i]; } } return i; } /* string case (internal). Return JS_ATOM_NULL if error. 'str' is freed. */ static JSAtom __JS_NewAtom(JSRuntime *rt, JSString *str, int atom_type) { uint32_t h, h1, i; JSAtomStruct *p; int len; #if 0 printf("__JS_NewAtom: "); JS_DumpString(rt, str); printf("\n"); #endif if (atom_type < JS_ATOM_TYPE_SYMBOL) { /* str is not NULL */ if (str->atom_type == atom_type) { /* str is the atom, return its index */ i = js_get_atom_index(rt, str); /* reduce string refcount and increase atom's unless constant */ if (__JS_AtomIsConst(i)) str->header.ref_count--; return i; } /* try and locate an already registered atom */ len = str->len; h = hash_string(str, atom_type); h &= JS_ATOM_HASH_MASK; h1 = h & (rt->atom_hash_size - 1); i = rt->atom_hash[h1]; while (i != 0) { p = rt->atom_array[i]; if (p->hash == h && p->atom_type == atom_type && p->len == len && js_string_memcmp(p, str, len) == 0) { if (!__JS_AtomIsConst(i)) p->header.ref_count++; goto done; } i = p->hash_next; } } else { h1 = 0; /* avoid warning */ if (atom_type == JS_ATOM_TYPE_SYMBOL) { h = JS_ATOM_HASH_SYMBOL; } else { h = JS_ATOM_HASH_PRIVATE; atom_type = JS_ATOM_TYPE_SYMBOL; } } if (rt->atom_free_index == 0) { /* allow new atom entries */ uint32_t new_size, start; JSAtomStruct **new_array; /* alloc new with size progression 3/2: 4 6 9 13 19 28 42 63 94 141 211 316 474 711 1066 1599 2398 3597 5395 8092 preallocating space for predefined atoms (at least 195). */ new_size = max_int(211, rt->atom_size * 3 / 2); if (new_size > JS_ATOM_MAX) goto fail; /* XXX: should use realloc2 to use slack space */ new_array = js_realloc_rt(rt, rt->atom_array, sizeof(*new_array) * new_size); if (!new_array) goto fail; /* Note: the atom 0 is not used */ start = rt->atom_size; if (start == 0) { /* JS_ATOM_NULL entry */ p = js_mallocz_rt(rt, sizeof(JSAtomStruct)); if (!p) { js_free_rt(rt, new_array); goto fail; } p->header.ref_count = 1; /* not refcounted */ p->atom_type = JS_ATOM_TYPE_SYMBOL; #ifdef DUMP_LEAKS list_add_tail(&p->link, &rt->string_list); #endif new_array[0] = p; rt->atom_count++; start = 1; } rt->atom_size = new_size; rt->atom_array = new_array; rt->atom_free_index = start; for(i = start; i < new_size; i++) { uint32_t next; if (i == (new_size - 1)) next = 0; else next = i + 1; rt->atom_array[i] = atom_set_free(next); } } if (str) { if (str->atom_type == 0) { p = str; p->atom_type = atom_type; } else { p = js_malloc_rt(rt, sizeof(JSString) + (str->len << str->is_wide_char) + 1 - str->is_wide_char); if (unlikely(!p)) goto fail; p->header.ref_count = 1; p->is_wide_char = str->is_wide_char; p->len = str->len; #ifdef DUMP_LEAKS list_add_tail(&p->link, &rt->string_list); #endif memcpy(p->u.str8, str->u.str8, (str->len << str->is_wide_char) + 1 - str->is_wide_char); js_free_string(rt, str); } } else { p = js_malloc_rt(rt, sizeof(JSAtomStruct)); /* empty wide string */ if (!p) return JS_ATOM_NULL; p->header.ref_count = 1; p->is_wide_char = 1; /* Hack to represent NULL as a JSString */ p->len = 0; #ifdef DUMP_LEAKS list_add_tail(&p->link, &rt->string_list); #endif } /* use an already free entry */ i = rt->atom_free_index; rt->atom_free_index = atom_get_free(rt->atom_array[i]); rt->atom_array[i] = p; p->hash = h; p->hash_next = i; /* atom_index */ p->atom_type = atom_type; rt->atom_count++; if (atom_type != JS_ATOM_TYPE_SYMBOL) { p->hash_next = rt->atom_hash[h1]; rt->atom_hash[h1] = i; if (unlikely(rt->atom_count >= rt->atom_count_resize)) JS_ResizeAtomHash(rt, rt->atom_hash_size * 2); } // JS_DumpAtoms(rt); return i; fail: i = JS_ATOM_NULL; done: if (str) js_free_string(rt, str); return i; } /* only works with zero terminated 8 bit strings */ static JSAtom __JS_NewAtomInit(JSRuntime *rt, const char *str, int len, int atom_type) { JSString *p; p = js_alloc_string_rt(rt, len, 0); if (!p) return JS_ATOM_NULL; memcpy(p->u.str8, str, len); p->u.str8[len] = '\0'; return __JS_NewAtom(rt, p, atom_type); } static JSAtom __JS_FindAtom(JSRuntime *rt, const char *str, size_t len, int atom_type) { uint32_t h, h1, i; JSAtomStruct *p; h = hash_string8((const uint8_t *)str, len, JS_ATOM_TYPE_STRING); h &= JS_ATOM_HASH_MASK; h1 = h & (rt->atom_hash_size - 1); i = rt->atom_hash[h1]; while (i != 0) { p = rt->atom_array[i]; if (p->hash == h && p->atom_type == JS_ATOM_TYPE_STRING && p->len == len && p->is_wide_char == 0 && memcmp(p->u.str8, str, len) == 0) { if (!__JS_AtomIsConst(i)) p->header.ref_count++; return i; } i = p->hash_next; } return JS_ATOM_NULL; } static void JS_FreeAtomStruct(JSRuntime *rt, JSAtomStruct *p) { #if 0 /* JS_ATOM_NULL is not refcounted: __JS_AtomIsConst() includes 0 */ if (unlikely(i == JS_ATOM_NULL)) { p->header.ref_count = INT32_MAX / 2; return; } #endif uint32_t i = p->hash_next; /* atom_index */ if (p->atom_type != JS_ATOM_TYPE_SYMBOL) { JSAtomStruct *p0, *p1; uint32_t h0; h0 = p->hash & (rt->atom_hash_size - 1); i = rt->atom_hash[h0]; p1 = rt->atom_array[i]; if (p1 == p) { rt->atom_hash[h0] = p1->hash_next; } else { for(;;) { assert(i != 0); p0 = p1; i = p1->hash_next; p1 = rt->atom_array[i]; if (p1 == p) { p0->hash_next = p1->hash_next; break; } } } } /* insert in free atom list */ rt->atom_array[i] = atom_set_free(rt->atom_free_index); rt->atom_free_index = i; /* free the string structure */ #ifdef DUMP_LEAKS list_del(&p->link); #endif js_free_rt(rt, p); rt->atom_count--; assert(rt->atom_count >= 0); } static void __JS_FreeAtom(JSRuntime *rt, uint32_t i) { JSAtomStruct *p; p = rt->atom_array[i]; if (--p->header.ref_count > 0) return; JS_FreeAtomStruct(rt, p); } /* Warning: 'p' is freed */ static JSAtom JS_NewAtomStr(JSContext *ctx, JSString *p) { JSRuntime *rt = ctx->rt; uint32_t n; if (is_num_string(&n, p)) { if (n <= JS_ATOM_MAX_INT) { js_free_string(rt, p); return __JS_AtomFromUInt32(n); } } /* XXX: should generate an exception */ return __JS_NewAtom(rt, p, JS_ATOM_TYPE_STRING); } JSAtom JS_NewAtomLen(JSContext *ctx, const char *str, size_t len) { JSValue val; if (len == 0 || !is_digit(*str)) { JSAtom atom = __JS_FindAtom(ctx->rt, str, len, JS_ATOM_TYPE_STRING); if (atom) return atom; } val = JS_NewStringLen(ctx, str, len); if (JS_IsException(val)) return JS_ATOM_NULL; return JS_NewAtomStr(ctx, JS_VALUE_GET_STRING(val)); } JSAtom JS_NewAtom(JSContext *ctx, const char *str) { return JS_NewAtomLen(ctx, str, strlen(str)); } JSAtom JS_NewAtomUInt32(JSContext *ctx, uint32_t n) { if (n <= JS_ATOM_MAX_INT) { return __JS_AtomFromUInt32(n); } else { char buf[11]; JSValue val; snprintf(buf, sizeof(buf), "%u", n); val = JS_NewString(ctx, buf); if (JS_IsException(val)) return JS_ATOM_NULL; return __JS_NewAtom(ctx->rt, JS_VALUE_GET_STRING(val), JS_ATOM_TYPE_STRING); } } static JSAtom JS_NewAtomInt64(JSContext *ctx, int64_t n) { if ((uint64_t)n <= JS_ATOM_MAX_INT) { return __JS_AtomFromUInt32((uint32_t)n); } else { char buf[24]; JSValue val; snprintf(buf, sizeof(buf), "%" PRId64 , n); val = JS_NewString(ctx, buf); if (JS_IsException(val)) return JS_ATOM_NULL; return __JS_NewAtom(ctx->rt, JS_VALUE_GET_STRING(val), JS_ATOM_TYPE_STRING); } } /* 'p' is freed */ static JSValue JS_NewSymbol(JSContext *ctx, JSString *p, int atom_type) { JSRuntime *rt = ctx->rt; JSAtom atom; atom = __JS_NewAtom(rt, p, atom_type); if (atom == JS_ATOM_NULL) return JS_ThrowOutOfMemory(ctx); return JS_MKPTR(JS_TAG_SYMBOL, rt->atom_array[atom]); } /* descr must be a non-numeric string atom */ static JSValue JS_NewSymbolFromAtom(JSContext *ctx, JSAtom descr, int atom_type) { JSRuntime *rt = ctx->rt; JSString *p; assert(!__JS_AtomIsTaggedInt(descr)); assert(descr < rt->atom_size); p = rt->atom_array[descr]; JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p)); return JS_NewSymbol(ctx, p, atom_type); } #define ATOM_GET_STR_BUF_SIZE 64 /* Should only be used for debug. */ static const char *JS_AtomGetStrRT(JSRuntime *rt, char *buf, int buf_size, JSAtom atom) { if (__JS_AtomIsTaggedInt(atom)) { snprintf(buf, buf_size, "%u", __JS_AtomToUInt32(atom)); } else { JSAtomStruct *p; assert(atom < rt->atom_size); if (atom == JS_ATOM_NULL) { snprintf(buf, buf_size, ""); } else { int i, c; char *q; JSString *str; q = buf; p = rt->atom_array[atom]; assert(!atom_is_free(p)); str = p; if (str) { if (!str->is_wide_char) { /* special case ASCII strings */ c = 0; for(i = 0; i < str->len; i++) { c |= str->u.str8[i]; } if (c < 0x80) return (const char *)str->u.str8; } for(i = 0; i < str->len; i++) { if (str->is_wide_char) c = str->u.str16[i]; else c = str->u.str8[i]; if ((q - buf) >= buf_size - UTF8_CHAR_LEN_MAX) break; if (c < 128) { *q++ = c; } else { q += unicode_to_utf8((uint8_t *)q, c); } } } *q = '\0'; } } return buf; } static const char *JS_AtomGetStr(JSContext *ctx, char *buf, int buf_size, JSAtom atom) { return JS_AtomGetStrRT(ctx->rt, buf, buf_size, atom); } static JSValue __JS_AtomToValue(JSContext *ctx, JSAtom atom, BOOL force_string) { char buf[ATOM_GET_STR_BUF_SIZE]; if (__JS_AtomIsTaggedInt(atom)) { snprintf(buf, sizeof(buf), "%u", __JS_AtomToUInt32(atom)); return JS_NewString(ctx, buf); } else { JSRuntime *rt = ctx->rt; JSAtomStruct *p; assert(atom < rt->atom_size); p = rt->atom_array[atom]; if (p->atom_type == JS_ATOM_TYPE_STRING) { goto ret_string; } else if (force_string) { if (p->len == 0 && p->is_wide_char != 0) { /* no description string */ p = rt->atom_array[JS_ATOM_empty_string]; } ret_string: return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p)); } else { return JS_DupValue(ctx, JS_MKPTR(JS_TAG_SYMBOL, p)); } } } JSValue JS_AtomToValue(JSContext *ctx, JSAtom atom) { return __JS_AtomToValue(ctx, atom, FALSE); } JSValue JS_AtomToString(JSContext *ctx, JSAtom atom) { return __JS_AtomToValue(ctx, atom, TRUE); } /* return TRUE if the atom is an array index (i.e. 0 <= index <= 2^32-2 and return its value */ static BOOL JS_AtomIsArrayIndex(JSContext *ctx, uint32_t *pval, JSAtom atom) { if (__JS_AtomIsTaggedInt(atom)) { *pval = __JS_AtomToUInt32(atom); return TRUE; } else { JSRuntime *rt = ctx->rt; JSAtomStruct *p; uint32_t val; assert(atom < rt->atom_size); p = rt->atom_array[atom]; if (p->atom_type == JS_ATOM_TYPE_STRING && is_num_string(&val, p) && val != -1) { *pval = val; return TRUE; } else { *pval = 0; return FALSE; } } } /* This test must be fast if atom is not a numeric index (e.g. a method name). Return JS_UNDEFINED if not a numeric index. JS_EXCEPTION can also be returned. */ static JSValue JS_AtomIsNumericIndex1(JSContext *ctx, JSAtom atom) { JSRuntime *rt = ctx->rt; JSAtomStruct *p1; JSString *p; int c, len, ret; JSValue num, str; if (__JS_AtomIsTaggedInt(atom)) return JS_NewInt32(ctx, __JS_AtomToUInt32(atom)); assert(atom < rt->atom_size); p1 = rt->atom_array[atom]; if (p1->atom_type != JS_ATOM_TYPE_STRING) return JS_UNDEFINED; p = p1; len = p->len; if (p->is_wide_char) { const uint16_t *r = p->u.str16, *r_end = p->u.str16 + len; if (r >= r_end) return JS_UNDEFINED; c = *r; if (c == '-') { if (r >= r_end) return JS_UNDEFINED; r++; c = *r; /* -0 case is specific */ if (c == '0' && len == 2) goto minus_zero; } /* XXX: should test NaN, but the tests do not check it */ if (!is_num(c)) { /* XXX: String should be normalized, therefore 8-bit only */ const uint16_t nfinity16[7] = { 'n', 'f', 'i', 'n', 'i', 't', 'y' }; if (!(c =='I' && (r_end - r) == 8 && !memcmp(r + 1, nfinity16, sizeof(nfinity16)))) return JS_UNDEFINED; } } else { const uint8_t *r = p->u.str8, *r_end = p->u.str8 + len; if (r >= r_end) return JS_UNDEFINED; c = *r; if (c == '-') { if (r >= r_end) return JS_UNDEFINED; r++; c = *r; /* -0 case is specific */ if (c == '0' && len == 2) { minus_zero: return __JS_NewFloat64(ctx, -0.0); } } if (!is_num(c)) { if (!(c =='I' && (r_end - r) == 8 && !memcmp(r + 1, "nfinity", 7))) return JS_UNDEFINED; } } /* XXX: bignum: would be better to only accept integer to avoid relying on current floating point precision */ /* this is ECMA CanonicalNumericIndexString primitive */ num = JS_ToNumber(ctx, JS_MKPTR(JS_TAG_STRING, p)); if (JS_IsException(num)) return num; str = JS_ToString(ctx, num); if (JS_IsException(str)) { JS_FreeValue(ctx, num); return str; } ret = js_string_compare(ctx, p, JS_VALUE_GET_STRING(str)); JS_FreeValue(ctx, str); if (ret == 0) { return num; } else { JS_FreeValue(ctx, num); return JS_UNDEFINED; } } /* return -1 if exception or TRUE/FALSE */ static int JS_AtomIsNumericIndex(JSContext *ctx, JSAtom atom) { JSValue num; num = JS_AtomIsNumericIndex1(ctx, atom); if (likely(JS_IsUndefined(num))) return FALSE; if (JS_IsException(num)) return -1; JS_FreeValue(ctx, num); return TRUE; } void JS_FreeAtom(JSContext *ctx, JSAtom v) { if (!__JS_AtomIsConst(v)) __JS_FreeAtom(ctx->rt, v); } void JS_FreeAtomRT(JSRuntime *rt, JSAtom v) { if (!__JS_AtomIsConst(v)) __JS_FreeAtom(rt, v); } /* return TRUE if 'v' is a symbol with a string description */ static BOOL JS_AtomSymbolHasDescription(JSContext *ctx, JSAtom v) { JSRuntime *rt; JSAtomStruct *p; rt = ctx->rt; if (__JS_AtomIsTaggedInt(v)) return FALSE; p = rt->atom_array[v]; return (((p->atom_type == JS_ATOM_TYPE_SYMBOL && p->hash == JS_ATOM_HASH_SYMBOL) || p->atom_type == JS_ATOM_TYPE_GLOBAL_SYMBOL) && !(p->len == 0 && p->is_wide_char != 0)); } static __maybe_unused void print_atom(JSContext *ctx, JSAtom atom) { char buf[ATOM_GET_STR_BUF_SIZE]; const char *p; int i; /* XXX: should handle embedded null characters */ /* XXX: should move encoding code to JS_AtomGetStr */ p = JS_AtomGetStr(ctx, buf, sizeof(buf), atom); for (i = 0; p[i]; i++) { int c = (unsigned char)p[i]; if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c == '_' || c == '$') || (c >= '0' && c <= '9' && i > 0))) break; } if (i > 0 && p[i] == '\0') { printf("%s", p); } else { putchar('"'); printf("%.*s", i, p); for (; p[i]; i++) { int c = (unsigned char)p[i]; if (c == '\"' || c == '\\') { putchar('\\'); putchar(c); } else if (c >= ' ' && c <= 126) { putchar(c); } else if (c == '\n') { putchar('\\'); putchar('n'); } else { printf("\\u%04x", c); } } putchar('\"'); } } /* free with JS_FreeCString() */ const char *JS_AtomToCString(JSContext *ctx, JSAtom atom) { JSValue str; const char *cstr; str = JS_AtomToString(ctx, atom); if (JS_IsException(str)) return NULL; cstr = JS_ToCString(ctx, str); JS_FreeValue(ctx, str); return cstr; } /* return a string atom containing name concatenated with str1 */ static JSAtom js_atom_concat_str(JSContext *ctx, JSAtom name, const char *str1) { JSValue str; JSAtom atom; const char *cstr; char *cstr2; size_t len, len1; str = JS_AtomToString(ctx, name); if (JS_IsException(str)) return JS_ATOM_NULL; cstr = JS_ToCStringLen(ctx, &len, str); if (!cstr) goto fail; len1 = strlen(str1); cstr2 = js_malloc(ctx, len + len1 + 1); if (!cstr2) goto fail; memcpy(cstr2, cstr, len); memcpy(cstr2 + len, str1, len1); cstr2[len + len1] = '\0'; atom = JS_NewAtomLen(ctx, cstr2, len + len1); js_free(ctx, cstr2); JS_FreeCString(ctx, cstr); JS_FreeValue(ctx, str); return atom; fail: JS_FreeCString(ctx, cstr); JS_FreeValue(ctx, str); return JS_ATOM_NULL; } static JSAtom js_atom_concat_num(JSContext *ctx, JSAtom name, uint32_t n) { char buf[16]; snprintf(buf, sizeof(buf), "%u", n); return js_atom_concat_str(ctx, name, buf); } static inline BOOL JS_IsEmptyString(JSValueConst v) { return JS_VALUE_GET_TAG(v) == JS_TAG_STRING && JS_VALUE_GET_STRING(v)->len == 0; } /* JSClass support */ /* a new class ID is allocated if *pclass_id != 0 */ JSClassID JS_NewClassID(JSClassID *pclass_id) { JSClassID class_id; /* XXX: make it thread safe */ class_id = *pclass_id; if (class_id == 0) { class_id = js_class_id_alloc++; *pclass_id = class_id; } return class_id; } BOOL JS_IsRegisteredClass(JSRuntime *rt, JSClassID class_id) { return (class_id < rt->class_count && rt->class_array[class_id].class_id != 0); } /* create a new object internal class. Return -1 if error, 0 if OK. The finalizer can be NULL if none is needed. */ static int JS_NewClass1(JSRuntime *rt, JSClassID class_id, const JSClassDef *class_def, JSAtom name) { int new_size, i; JSClass *cl, *new_class_array; struct list_head *el; if (class_id < rt->class_count && rt->class_array[class_id].class_id != 0) return -1; if (class_id >= rt->class_count) { new_size = max_int(JS_CLASS_INIT_COUNT, max_int(class_id + 1, rt->class_count * 3 / 2)); /* reallocate the context class prototype array, if any */ list_for_each(el, &rt->context_list) { JSContext *ctx = list_entry(el, JSContext, link); JSValue *new_tab; new_tab = js_realloc_rt(rt, ctx->class_proto, sizeof(ctx->class_proto[0]) * new_size); if (!new_tab) return -1; for(i = rt->class_count; i < new_size; i++) new_tab[i] = JS_NULL; ctx->class_proto = new_tab; } /* reallocate the class array */ new_class_array = js_realloc_rt(rt, rt->class_array, sizeof(JSClass) * new_size); if (!new_class_array) return -1; memset(new_class_array + rt->class_count, 0, (new_size - rt->class_count) * sizeof(JSClass)); rt->class_array = new_class_array; rt->class_count = new_size; } cl = &rt->class_array[class_id]; cl->class_id = class_id; cl->class_name = JS_DupAtomRT(rt, name); cl->finalizer = class_def->finalizer; cl->gc_mark = class_def->gc_mark; cl->call = class_def->call; cl->exotic = class_def->exotic; return 0; } int JS_NewClass(JSRuntime *rt, JSClassID class_id, const JSClassDef *class_def) { int ret, len; JSAtom name; len = strlen(class_def->class_name); name = __JS_FindAtom(rt, class_def->class_name, len, JS_ATOM_TYPE_STRING); if (name == JS_ATOM_NULL) { name = __JS_NewAtomInit(rt, class_def->class_name, len, JS_ATOM_TYPE_STRING); if (name == JS_ATOM_NULL) return -1; } ret = JS_NewClass1(rt, class_id, class_def, name); JS_FreeAtomRT(rt, name); return ret; } static JSValue js_new_string8(JSContext *ctx, const uint8_t *buf, int len) { JSString *str; if (len <= 0) { return JS_AtomToString(ctx, JS_ATOM_empty_string); } str = js_alloc_string(ctx, len, 0); if (!str) return JS_EXCEPTION; memcpy(str->u.str8, buf, len); str->u.str8[len] = '\0'; return JS_MKPTR(JS_TAG_STRING, str); } static JSValue js_new_string16(JSContext *ctx, const uint16_t *buf, int len) { JSString *str; str = js_alloc_string(ctx, len, 1); if (!str) return JS_EXCEPTION; memcpy(str->u.str16, buf, len * 2); return JS_MKPTR(JS_TAG_STRING, str); } static JSValue js_new_string_char(JSContext *ctx, uint16_t c) { if (c < 0x100) { uint8_t ch8 = c; return js_new_string8(ctx, &ch8, 1); } else { uint16_t ch16 = c; return js_new_string16(ctx, &ch16, 1); } } static JSValue js_sub_string(JSContext *ctx, JSString *p, int start, int end) { int len = end - start; if (start == 0 && end == p->len) { return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p)); } if (p->is_wide_char && len > 0) { JSString *str; int i; uint16_t c = 0; for (i = start; i < end; i++) { c |= p->u.str16[i]; } if (c > 0xFF) return js_new_string16(ctx, p->u.str16 + start, len); str = js_alloc_string(ctx, len, 0); if (!str) return JS_EXCEPTION; for (i = 0; i < len; i++) { str->u.str8[i] = p->u.str16[start + i]; } str->u.str8[len] = '\0'; return JS_MKPTR(JS_TAG_STRING, str); } else { return js_new_string8(ctx, p->u.str8 + start, len); } } typedef struct StringBuffer { JSContext *ctx; JSString *str; int len; int size; int is_wide_char; int error_status; } StringBuffer; /* It is valid to call string_buffer_end() and all string_buffer functions even if string_buffer_init() or another string_buffer function returns an error. If the error_status is set, string_buffer_end() returns JS_EXCEPTION. */ static int string_buffer_init2(JSContext *ctx, StringBuffer *s, int size, int is_wide) { s->ctx = ctx; s->size = size; s->len = 0; s->is_wide_char = is_wide; s->error_status = 0; s->str = js_alloc_string(ctx, size, is_wide); if (unlikely(!s->str)) { s->size = 0; return s->error_status = -1; } #ifdef DUMP_LEAKS /* the StringBuffer may reallocate the JSString, only link it at the end */ list_del(&s->str->link); #endif return 0; } static inline int string_buffer_init(JSContext *ctx, StringBuffer *s, int size) { return string_buffer_init2(ctx, s, size, 0); } static void string_buffer_free(StringBuffer *s) { js_free(s->ctx, s->str); s->str = NULL; } static int string_buffer_set_error(StringBuffer *s) { js_free(s->ctx, s->str); s->str = NULL; s->size = 0; s->len = 0; return s->error_status = -1; } static no_inline int string_buffer_widen(StringBuffer *s, int size) { JSString *str; size_t slack; int i; if (s->error_status) return -1; str = js_realloc2(s->ctx, s->str, sizeof(JSString) + (size << 1), &slack); if (!str) return string_buffer_set_error(s); size += slack >> 1; for(i = s->len; i-- > 0;) { str->u.str16[i] = str->u.str8[i]; } s->is_wide_char = 1; s->size = size; s->str = str; return 0; } static no_inline int string_buffer_realloc(StringBuffer *s, int new_len, int c) { JSString *new_str; int new_size; size_t new_size_bytes, slack; if (s->error_status) return -1; if (new_len > JS_STRING_LEN_MAX) { JS_ThrowInternalError(s->ctx, "string too long"); return string_buffer_set_error(s); } new_size = min_int(max_int(new_len, s->size * 3 / 2), JS_STRING_LEN_MAX); if (!s->is_wide_char && c >= 0x100) { return string_buffer_widen(s, new_size); } new_size_bytes = sizeof(JSString) + (new_size << s->is_wide_char) + 1 - s->is_wide_char; new_str = js_realloc2(s->ctx, s->str, new_size_bytes, &slack); if (!new_str) return string_buffer_set_error(s); new_size = min_int(new_size + (slack >> s->is_wide_char), JS_STRING_LEN_MAX); s->size = new_size; s->str = new_str; return 0; } static no_inline int string_buffer_putc_slow(StringBuffer *s, uint32_t c) { if (unlikely(s->len >= s->size)) { if (string_buffer_realloc(s, s->len + 1, c)) return -1; } if (s->is_wide_char) { s->str->u.str16[s->len++] = c; } else if (c < 0x100) { s->str->u.str8[s->len++] = c; } else { if (string_buffer_widen(s, s->size)) return -1; s->str->u.str16[s->len++] = c; } return 0; } /* 0 <= c <= 0xff */ static int string_buffer_putc8(StringBuffer *s, uint32_t c) { if (unlikely(s->len >= s->size)) { if (string_buffer_realloc(s, s->len + 1, c)) return -1; } if (s->is_wide_char) { s->str->u.str16[s->len++] = c; } else { s->str->u.str8[s->len++] = c; } return 0; } /* 0 <= c <= 0xffff */ static int string_buffer_putc16(StringBuffer *s, uint32_t c) { if (likely(s->len < s->size)) { if (s->is_wide_char) { s->str->u.str16[s->len++] = c; return 0; } else if (c < 0x100) { s->str->u.str8[s->len++] = c; return 0; } } return string_buffer_putc_slow(s, c); } /* 0 <= c <= 0x10ffff */ static int string_buffer_putc(StringBuffer *s, uint32_t c) { if (unlikely(c >= 0x10000)) { /* surrogate pair */ c -= 0x10000; if (string_buffer_putc16(s, (c >> 10) + 0xd800)) return -1; c = (c & 0x3ff) + 0xdc00; } return string_buffer_putc16(s, c); } static int string_get(const JSString *p, int idx) { return p->is_wide_char ? p->u.str16[idx] : p->u.str8[idx]; } static int string_getc(const JSString *p, int *pidx) { int idx, c, c1; idx = *pidx; if (p->is_wide_char) { c = p->u.str16[idx++]; if (c >= 0xd800 && c < 0xdc00 && idx < p->len) { c1 = p->u.str16[idx]; if (c1 >= 0xdc00 && c1 < 0xe000) { c = (((c & 0x3ff) << 10) | (c1 & 0x3ff)) + 0x10000; idx++; } } } else { c = p->u.str8[idx++]; } *pidx = idx; return c; } static int string_buffer_write8(StringBuffer *s, const uint8_t *p, int len) { int i; if (s->len + len > s->size) { if (string_buffer_realloc(s, s->len + len, 0)) return -1; } if (s->is_wide_char) { for (i = 0; i < len; i++) { s->str->u.str16[s->len + i] = p[i]; } s->len += len; } else { memcpy(&s->str->u.str8[s->len], p, len); s->len += len; } return 0; } static int string_buffer_write16(StringBuffer *s, const uint16_t *p, int len) { int c = 0, i; for (i = 0; i < len; i++) { c |= p[i]; } if (s->len + len > s->size) { if (string_buffer_realloc(s, s->len + len, c)) return -1; } else if (!s->is_wide_char && c >= 0x100) { if (string_buffer_widen(s, s->size)) return -1; } if (s->is_wide_char) { memcpy(&s->str->u.str16[s->len], p, len << 1); s->len += len; } else { for (i = 0; i < len; i++) { s->str->u.str8[s->len + i] = p[i]; } s->len += len; } return 0; } /* appending an ASCII string */ static int string_buffer_puts8(StringBuffer *s, const char *str) { return string_buffer_write8(s, (const uint8_t *)str, strlen(str)); } static int string_buffer_concat(StringBuffer *s, const JSString *p, uint32_t from, uint32_t to) { if (to <= from) return 0; if (p->is_wide_char) return string_buffer_write16(s, p->u.str16 + from, to - from); else return string_buffer_write8(s, p->u.str8 + from, to - from); } static int string_buffer_concat_value(StringBuffer *s, JSValueConst v) { JSString *p; JSValue v1; int res; if (s->error_status) { /* prevent exception overload */ return -1; } if (unlikely(JS_VALUE_GET_TAG(v) != JS_TAG_STRING)) { v1 = JS_ToString(s->ctx, v); if (JS_IsException(v1)) return string_buffer_set_error(s); p = JS_VALUE_GET_STRING(v1); res = string_buffer_concat(s, p, 0, p->len); JS_FreeValue(s->ctx, v1); return res; } p = JS_VALUE_GET_STRING(v); return string_buffer_concat(s, p, 0, p->len); } static int string_buffer_concat_value_free(StringBuffer *s, JSValue v) { JSString *p; int res; if (s->error_status) { /* prevent exception overload */ JS_FreeValue(s->ctx, v); return -1; } if (unlikely(JS_VALUE_GET_TAG(v) != JS_TAG_STRING)) { v = JS_ToStringFree(s->ctx, v); if (JS_IsException(v)) return string_buffer_set_error(s); } p = JS_VALUE_GET_STRING(v); res = string_buffer_concat(s, p, 0, p->len); JS_FreeValue(s->ctx, v); return res; } static int string_buffer_fill(StringBuffer *s, int c, int count) { /* XXX: optimize */ if (s->len + count > s->size) { if (string_buffer_realloc(s, s->len + count, c)) return -1; } while (count-- > 0) { if (string_buffer_putc16(s, c)) return -1; } return 0; } static JSValue string_buffer_end(StringBuffer *s) { JSString *str; str = s->str; if (s->error_status) return JS_EXCEPTION; if (s->len == 0) { js_free(s->ctx, str); s->str = NULL; return JS_AtomToString(s->ctx, JS_ATOM_empty_string); } if (s->len < s->size) { /* smaller size so js_realloc should not fail, but OK if it does */ /* XXX: should add some slack to avoid unnecessary calls */ /* XXX: might need to use malloc+free to ensure smaller size */ str = js_realloc_rt(s->ctx->rt, str, sizeof(JSString) + (s->len << s->is_wide_char) + 1 - s->is_wide_char); if (str == NULL) str = s->str; s->str = str; } if (!s->is_wide_char) str->u.str8[s->len] = 0; #ifdef DUMP_LEAKS list_add_tail(&str->link, &s->ctx->rt->string_list); #endif str->is_wide_char = s->is_wide_char; str->len = s->len; s->str = NULL; return JS_MKPTR(JS_TAG_STRING, str); } /* create a string from a UTF-8 buffer */ JSValue JS_NewStringLen(JSContext *ctx, const char *buf, size_t buf_len) { const uint8_t *p, *p_end, *p_start, *p_next; uint32_t c; StringBuffer b_s, *b = &b_s; size_t len1; p_start = (const uint8_t *)buf; p_end = p_start + buf_len; p = p_start; while (p < p_end && *p < 128) p++; len1 = p - p_start; if (len1 > JS_STRING_LEN_MAX) return JS_ThrowInternalError(ctx, "string too long"); if (p == p_end) { /* ASCII string */ return js_new_string8(ctx, (const uint8_t *)buf, buf_len); } else { if (string_buffer_init(ctx, b, buf_len)) goto fail; string_buffer_write8(b, p_start, len1); while (p < p_end) { if (*p < 128) { string_buffer_putc8(b, *p++); } else { /* parse utf-8 sequence, return 0xFFFFFFFF for error */ c = unicode_from_utf8(p, p_end - p, &p_next); if (c < 0x10000) { p = p_next; } else if (c <= 0x10FFFF) { p = p_next; /* surrogate pair */ c -= 0x10000; string_buffer_putc16(b, (c >> 10) + 0xd800); c = (c & 0x3ff) + 0xdc00; } else { /* invalid char */ c = 0xfffd; /* skip the invalid chars */ /* XXX: seems incorrect. Why not just use c = *p++; ? */ while (p < p_end && (*p >= 0x80 && *p < 0xc0)) p++; if (p < p_end) { p++; while (p < p_end && (*p >= 0x80 && *p < 0xc0)) p++; } } string_buffer_putc16(b, c); } } } return string_buffer_end(b); fail: string_buffer_free(b); return JS_EXCEPTION; } static JSValue JS_ConcatString3(JSContext *ctx, const char *str1, JSValue str2, const char *str3) { StringBuffer b_s, *b = &b_s; int len1, len3; JSString *p; if (unlikely(JS_VALUE_GET_TAG(str2) != JS_TAG_STRING)) { str2 = JS_ToStringFree(ctx, str2); if (JS_IsException(str2)) goto fail; } p = JS_VALUE_GET_STRING(str2); len1 = strlen(str1); len3 = strlen(str3); if (string_buffer_init2(ctx, b, len1 + p->len + len3, p->is_wide_char)) goto fail; string_buffer_write8(b, (const uint8_t *)str1, len1); string_buffer_concat(b, p, 0, p->len); string_buffer_write8(b, (const uint8_t *)str3, len3); JS_FreeValue(ctx, str2); return string_buffer_end(b); fail: JS_FreeValue(ctx, str2); return JS_EXCEPTION; } JSValue JS_NewString(JSContext *ctx, const char *str) { return JS_NewStringLen(ctx, str, strlen(str)); } JSValue JS_NewAtomString(JSContext *ctx, const char *str) { JSAtom atom = JS_NewAtom(ctx, str); if (atom == JS_ATOM_NULL) return JS_EXCEPTION; JSValue val = JS_AtomToString(ctx, atom); JS_FreeAtom(ctx, atom); return val; } /* return (NULL, 0) if exception. */ /* return pointer into a JSString with a live ref_count */ /* cesu8 determines if non-BMP1 codepoints are encoded as 1 or 2 utf-8 sequences */ const char *JS_ToCStringLen2(JSContext *ctx, size_t *plen, JSValueConst val1, BOOL cesu8) { JSValue val; JSString *str, *str_new; int pos, len, c, c1; uint8_t *q; if (JS_VALUE_GET_TAG(val1) != JS_TAG_STRING) { val = JS_ToString(ctx, val1); if (JS_IsException(val)) goto fail; } else { val = JS_DupValue(ctx, val1); } str = JS_VALUE_GET_STRING(val); len = str->len; if (!str->is_wide_char) { const uint8_t *src = str->u.str8; int count; /* count the number of non-ASCII characters */ /* Scanning the whole string is required for ASCII strings, and computing the number of non-ASCII bytes is less expensive than testing each byte, hence this method is faster for ASCII strings, which is the most common case. */ count = 0; for (pos = 0; pos < len; pos++) { count += src[pos] >> 7; } if (count == 0) { if (plen) *plen = len; return (const char *)src; } str_new = js_alloc_string(ctx, len + count, 0); if (!str_new) goto fail; q = str_new->u.str8; for (pos = 0; pos < len; pos++) { c = src[pos]; if (c < 0x80) { *q++ = c; } else { *q++ = (c >> 6) | 0xc0; *q++ = (c & 0x3f) | 0x80; } } } else { const uint16_t *src = str->u.str16; /* Allocate 3 bytes per 16 bit code point. Surrogate pairs may produce 4 bytes but use 2 code points. */ str_new = js_alloc_string(ctx, len * 3, 0); if (!str_new) goto fail; q = str_new->u.str8; pos = 0; while (pos < len) { c = src[pos++]; if (c < 0x80) { *q++ = c; } else { if (c >= 0xd800 && c < 0xdc00) { if (pos < len && !cesu8) { c1 = src[pos]; if (c1 >= 0xdc00 && c1 < 0xe000) { pos++; /* surrogate pair */ c = (((c & 0x3ff) << 10) | (c1 & 0x3ff)) + 0x10000; } else { /* Keep unmatched surrogate code points */ /* c = 0xfffd; */ /* error */ } } else { /* Keep unmatched surrogate code points */ /* c = 0xfffd; */ /* error */ } } q += unicode_to_utf8(q, c); } } } *q = '\0'; str_new->len = q - str_new->u.str8; JS_FreeValue(ctx, val); if (plen) *plen = str_new->len; return (const char *)str_new->u.str8; fail: if (plen) *plen = 0; return NULL; } void JS_FreeCString(JSContext *ctx, const char *ptr) { JSString *p; if (!ptr) return; /* purposely removing constness */ p = (JSString *)(void *)(ptr - offsetof(JSString, u)); JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, p)); } static int memcmp16_8(const uint16_t *src1, const uint8_t *src2, int len) { int c, i; for(i = 0; i < len; i++) { c = src1[i] - src2[i]; if (c != 0) return c; } return 0; } static int memcmp16(const uint16_t *src1, const uint16_t *src2, int len) { int c, i; for(i = 0; i < len; i++) { c = src1[i] - src2[i]; if (c != 0) return c; } return 0; } static int js_string_memcmp(const JSString *p1, const JSString *p2, int len) { int res; if (likely(!p1->is_wide_char)) { if (likely(!p2->is_wide_char)) res = memcmp(p1->u.str8, p2->u.str8, len); else res = -memcmp16_8(p2->u.str16, p1->u.str8, len); } else { if (!p2->is_wide_char) res = memcmp16_8(p1->u.str16, p2->u.str8, len); else res = memcmp16(p1->u.str16, p2->u.str16, len); } return res; } /* return < 0, 0 or > 0 */ static int js_string_compare(JSContext *ctx, const JSString *p1, const JSString *p2) { int res, len; len = min_int(p1->len, p2->len); res = js_string_memcmp(p1, p2, len); if (res == 0) { if (p1->len == p2->len) res = 0; else if (p1->len < p2->len) res = -1; else res = 1; } return res; } static void copy_str16(uint16_t *dst, const JSString *p, int offset, int len) { if (p->is_wide_char) { memcpy(dst, p->u.str16 + offset, len * 2); } else { const uint8_t *src1 = p->u.str8 + offset; int i; for(i = 0; i < len; i++) dst[i] = src1[i]; } } static JSValue JS_ConcatString1(JSContext *ctx, const JSString *p1, const JSString *p2) { JSString *p; uint32_t len; int is_wide_char; len = p1->len + p2->len; if (len > JS_STRING_LEN_MAX) return JS_ThrowInternalError(ctx, "string too long"); is_wide_char = p1->is_wide_char | p2->is_wide_char; p = js_alloc_string(ctx, len, is_wide_char); if (!p) return JS_EXCEPTION; if (!is_wide_char) { memcpy(p->u.str8, p1->u.str8, p1->len); memcpy(p->u.str8 + p1->len, p2->u.str8, p2->len); p->u.str8[len] = '\0'; } else { copy_str16(p->u.str16, p1, 0, p1->len); copy_str16(p->u.str16 + p1->len, p2, 0, p2->len); } return JS_MKPTR(JS_TAG_STRING, p); } /* op1 and op2 are converted to strings. For convience, op1 or op2 = JS_EXCEPTION are accepted and return JS_EXCEPTION. */ static JSValue JS_ConcatString(JSContext *ctx, JSValue op1, JSValue op2) { JSValue ret; JSString *p1, *p2; if (unlikely(JS_VALUE_GET_TAG(op1) != JS_TAG_STRING)) { op1 = JS_ToStringFree(ctx, op1); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); return JS_EXCEPTION; } } if (unlikely(JS_VALUE_GET_TAG(op2) != JS_TAG_STRING)) { op2 = JS_ToStringFree(ctx, op2); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); return JS_EXCEPTION; } } p1 = JS_VALUE_GET_STRING(op1); p2 = JS_VALUE_GET_STRING(op2); /* XXX: could also check if p1 is empty */ if (p2->len == 0) { goto ret_op1; } if (p1->header.ref_count == 1 && p1->is_wide_char == p2->is_wide_char && js_malloc_usable_size(ctx, p1) >= sizeof(*p1) + ((p1->len + p2->len) << p2->is_wide_char) + 1 - p1->is_wide_char) { /* Concatenate in place in available space at the end of p1 */ if (p1->is_wide_char) { memcpy(p1->u.str16 + p1->len, p2->u.str16, p2->len << 1); p1->len += p2->len; } else { memcpy(p1->u.str8 + p1->len, p2->u.str8, p2->len); p1->len += p2->len; p1->u.str8[p1->len] = '\0'; } ret_op1: JS_FreeValue(ctx, op2); return op1; } ret = JS_ConcatString1(ctx, p1, p2); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); return ret; } /* Shape support */ static inline size_t get_shape_size(size_t hash_size, size_t prop_size) { return hash_size * sizeof(uint32_t) + sizeof(JSShape) + prop_size * sizeof(JSShapeProperty); } static inline JSShape *get_shape_from_alloc(void *sh_alloc, size_t hash_size) { return (JSShape *)(void *)((uint32_t *)sh_alloc + hash_size); } static inline void *get_alloc_from_shape(JSShape *sh) { return sh->prop_hash_end - ((intptr_t)sh->prop_hash_mask + 1); } static inline JSShapeProperty *get_shape_prop(JSShape *sh) { return sh->prop; } static int init_shape_hash(JSRuntime *rt) { rt->shape_hash_bits = 4; /* 16 shapes */ rt->shape_hash_size = 1 << rt->shape_hash_bits; rt->shape_hash_count = 0; rt->shape_hash = js_mallocz_rt(rt, sizeof(rt->shape_hash[0]) * rt->shape_hash_size); if (!rt->shape_hash) return -1; return 0; } /* same magic hash multiplier as the Linux kernel */ static uint32_t shape_hash(uint32_t h, uint32_t val) { return (h + val) * 0x9e370001; } /* truncate the shape hash to 'hash_bits' bits */ static uint32_t get_shape_hash(uint32_t h, int hash_bits) { return h >> (32 - hash_bits); } static uint32_t shape_initial_hash(JSObject *proto) { uint32_t h; h = shape_hash(1, (uintptr_t)proto); if (sizeof(proto) > 4) h = shape_hash(h, (uint64_t)(uintptr_t)proto >> 32); return h; } static int resize_shape_hash(JSRuntime *rt, int new_shape_hash_bits) { int new_shape_hash_size, i; uint32_t h; JSShape **new_shape_hash, *sh, *sh_next; new_shape_hash_size = 1 << new_shape_hash_bits; new_shape_hash = js_mallocz_rt(rt, sizeof(rt->shape_hash[0]) * new_shape_hash_size); if (!new_shape_hash) return -1; for(i = 0; i < rt->shape_hash_size; i++) { for(sh = rt->shape_hash[i]; sh != NULL; sh = sh_next) { sh_next = sh->shape_hash_next; h = get_shape_hash(sh->hash, new_shape_hash_bits); sh->shape_hash_next = new_shape_hash[h]; new_shape_hash[h] = sh; } } js_free_rt(rt, rt->shape_hash); rt->shape_hash_bits = new_shape_hash_bits; rt->shape_hash_size = new_shape_hash_size; rt->shape_hash = new_shape_hash; return 0; } static void js_shape_hash_link(JSRuntime *rt, JSShape *sh) { uint32_t h; h = get_shape_hash(sh->hash, rt->shape_hash_bits); sh->shape_hash_next = rt->shape_hash[h]; rt->shape_hash[h] = sh; rt->shape_hash_count++; } static void js_shape_hash_unlink(JSRuntime *rt, JSShape *sh) { uint32_t h; JSShape **psh; h = get_shape_hash(sh->hash, rt->shape_hash_bits); psh = &rt->shape_hash[h]; while (*psh != sh) psh = &(*psh)->shape_hash_next; *psh = sh->shape_hash_next; rt->shape_hash_count--; } /* create a new empty shape with prototype 'proto' */ static no_inline JSShape *js_new_shape2(JSContext *ctx, JSObject *proto, int hash_size, int prop_size) { JSRuntime *rt = ctx->rt; void *sh_alloc; JSShape *sh; /* resize the shape hash table if necessary */ if (2 * (rt->shape_hash_count + 1) > rt->shape_hash_size) { resize_shape_hash(rt, rt->shape_hash_bits + 1); } sh_alloc = js_malloc(ctx, get_shape_size(hash_size, prop_size)); if (!sh_alloc) return NULL; sh = get_shape_from_alloc(sh_alloc, hash_size); sh->header.ref_count = 1; add_gc_object(rt, &sh->header, JS_GC_OBJ_TYPE_SHAPE); if (proto) JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, proto)); sh->proto = proto; memset(sh->prop_hash_end - hash_size, 0, sizeof(sh->prop_hash_end[0]) * hash_size); sh->prop_hash_mask = hash_size - 1; sh->prop_size = prop_size; sh->prop_count = 0; sh->deleted_prop_count = 0; /* insert in the hash table */ sh->hash = shape_initial_hash(proto); sh->is_hashed = TRUE; sh->has_small_array_index = FALSE; js_shape_hash_link(ctx->rt, sh); return sh; } static JSShape *js_new_shape(JSContext *ctx, JSObject *proto) { return js_new_shape2(ctx, proto, JS_PROP_INITIAL_HASH_SIZE, JS_PROP_INITIAL_SIZE); } /* The shape is cloned. The new shape is not inserted in the shape hash table */ static JSShape *js_clone_shape(JSContext *ctx, JSShape *sh1) { JSShape *sh; void *sh_alloc, *sh_alloc1; size_t size; JSShapeProperty *pr; uint32_t i, hash_size; hash_size = sh1->prop_hash_mask + 1; size = get_shape_size(hash_size, sh1->prop_size); sh_alloc = js_malloc(ctx, size); if (!sh_alloc) return NULL; sh_alloc1 = get_alloc_from_shape(sh1); memcpy(sh_alloc, sh_alloc1, size); sh = get_shape_from_alloc(sh_alloc, hash_size); sh->header.ref_count = 1; add_gc_object(ctx->rt, &sh->header, JS_GC_OBJ_TYPE_SHAPE); sh->is_hashed = FALSE; if (sh->proto) { JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, sh->proto)); } for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count; i++, pr++) { JS_DupAtom(ctx, pr->atom); } return sh; } static JSShape *js_dup_shape(JSShape *sh) { sh->header.ref_count++; return sh; } static void js_free_shape0(JSRuntime *rt, JSShape *sh) { uint32_t i; JSShapeProperty *pr; assert(sh->header.ref_count == 0); if (sh->is_hashed) js_shape_hash_unlink(rt, sh); if (sh->proto != NULL) { JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, sh->proto)); } pr = get_shape_prop(sh); for(i = 0; i < sh->prop_count; i++) { JS_FreeAtomRT(rt, pr->atom); pr++; } remove_gc_object(&sh->header); js_free_rt(rt, get_alloc_from_shape(sh)); } static void js_free_shape(JSRuntime *rt, JSShape *sh) { if (unlikely(--sh->header.ref_count <= 0)) { js_free_shape0(rt, sh); } } static void js_free_shape_null(JSRuntime *rt, JSShape *sh) { if (sh) js_free_shape(rt, sh); } /* make space to hold at least 'count' properties */ static no_inline int resize_properties(JSContext *ctx, JSShape **psh, JSObject *p, uint32_t count) { JSShape *sh; uint32_t new_size, new_hash_size, new_hash_mask, i; JSShapeProperty *pr; void *sh_alloc; intptr_t h; sh = *psh; new_size = max_int(count, sh->prop_size * 3 / 2); /* Reallocate prop array first to avoid crash or size inconsistency in case of memory allocation failure */ if (p) { JSProperty *new_prop; new_prop = js_realloc(ctx, p->prop, sizeof(new_prop[0]) * new_size); if (unlikely(!new_prop)) return -1; p->prop = new_prop; } new_hash_size = sh->prop_hash_mask + 1; while (new_hash_size < new_size) new_hash_size = 2 * new_hash_size; if (new_hash_size != (sh->prop_hash_mask + 1)) { JSShape *old_sh; /* resize the hash table and the properties */ old_sh = sh; sh_alloc = js_malloc(ctx, get_shape_size(new_hash_size, new_size)); if (!sh_alloc) return -1; sh = get_shape_from_alloc(sh_alloc, new_hash_size); list_del(&old_sh->header.link); /* copy all the fields and the properties */ memcpy(sh, old_sh, sizeof(JSShape) + sizeof(sh->prop[0]) * old_sh->prop_count); list_add_tail(&sh->header.link, &ctx->rt->gc_obj_list); new_hash_mask = new_hash_size - 1; sh->prop_hash_mask = new_hash_mask; memset(sh->prop_hash_end - new_hash_size, 0, sizeof(sh->prop_hash_end[0]) * new_hash_size); for(i = 0, pr = sh->prop; i < sh->prop_count; i++, pr++) { if (pr->atom != JS_ATOM_NULL) { h = ((uintptr_t)pr->atom & new_hash_mask); pr->hash_next = sh->prop_hash_end[-h - 1]; sh->prop_hash_end[-h - 1] = i + 1; } } js_free(ctx, get_alloc_from_shape(old_sh)); } else { /* only resize the properties */ list_del(&sh->header.link); sh_alloc = js_realloc(ctx, get_alloc_from_shape(sh), get_shape_size(new_hash_size, new_size)); if (unlikely(!sh_alloc)) { /* insert again in the GC list */ list_add_tail(&sh->header.link, &ctx->rt->gc_obj_list); return -1; } sh = get_shape_from_alloc(sh_alloc, new_hash_size); list_add_tail(&sh->header.link, &ctx->rt->gc_obj_list); } *psh = sh; sh->prop_size = new_size; return 0; } /* remove the deleted properties. */ static int compact_properties(JSContext *ctx, JSObject *p) { JSShape *sh, *old_sh; void *sh_alloc; intptr_t h; uint32_t new_hash_size, i, j, new_hash_mask, new_size; JSShapeProperty *old_pr, *pr; JSProperty *prop, *new_prop; sh = p->shape; assert(!sh->is_hashed); new_size = max_int(JS_PROP_INITIAL_SIZE, sh->prop_count - sh->deleted_prop_count); assert(new_size <= sh->prop_size); new_hash_size = sh->prop_hash_mask + 1; while ((new_hash_size / 2) >= new_size) new_hash_size = new_hash_size / 2; new_hash_mask = new_hash_size - 1; /* resize the hash table and the properties */ old_sh = sh; sh_alloc = js_malloc(ctx, get_shape_size(new_hash_size, new_size)); if (!sh_alloc) return -1; sh = get_shape_from_alloc(sh_alloc, new_hash_size); list_del(&old_sh->header.link); memcpy(sh, old_sh, sizeof(JSShape)); list_add_tail(&sh->header.link, &ctx->rt->gc_obj_list); memset(sh->prop_hash_end - new_hash_size, 0, sizeof(sh->prop_hash_end[0]) * new_hash_size); j = 0; old_pr = old_sh->prop; pr = sh->prop; prop = p->prop; for(i = 0; i < sh->prop_count; i++) { if (old_pr->atom != JS_ATOM_NULL) { pr->atom = old_pr->atom; pr->flags = old_pr->flags; h = ((uintptr_t)old_pr->atom & new_hash_mask); pr->hash_next = sh->prop_hash_end[-h - 1]; sh->prop_hash_end[-h - 1] = j + 1; prop[j] = prop[i]; j++; pr++; } old_pr++; } assert(j == (sh->prop_count - sh->deleted_prop_count)); sh->prop_hash_mask = new_hash_mask; sh->prop_size = new_size; sh->deleted_prop_count = 0; sh->prop_count = j; p->shape = sh; js_free(ctx, get_alloc_from_shape(old_sh)); /* reduce the size of the object properties */ new_prop = js_realloc(ctx, p->prop, sizeof(new_prop[0]) * new_size); if (new_prop) p->prop = new_prop; return 0; } static int add_shape_property(JSContext *ctx, JSShape **psh, JSObject *p, JSAtom atom, int prop_flags) { JSRuntime *rt = ctx->rt; JSShape *sh = *psh; JSShapeProperty *pr, *prop; uint32_t hash_mask, new_shape_hash = 0; intptr_t h; /* update the shape hash */ if (sh->is_hashed) { js_shape_hash_unlink(rt, sh); new_shape_hash = shape_hash(shape_hash(sh->hash, atom), prop_flags); } if (unlikely(sh->prop_count >= sh->prop_size)) { if (resize_properties(ctx, psh, p, sh->prop_count + 1)) { /* in case of error, reinsert in the hash table. sh is still valid if resize_properties() failed */ if (sh->is_hashed) js_shape_hash_link(rt, sh); return -1; } sh = *psh; } if (sh->is_hashed) { sh->hash = new_shape_hash; js_shape_hash_link(rt, sh); } /* Initialize the new shape property. The object property at p->prop[sh->prop_count] is uninitialized */ prop = get_shape_prop(sh); pr = &prop[sh->prop_count++]; pr->atom = JS_DupAtom(ctx, atom); pr->flags = prop_flags; sh->has_small_array_index |= __JS_AtomIsTaggedInt(atom); /* add in hash table */ hash_mask = sh->prop_hash_mask; h = atom & hash_mask; pr->hash_next = sh->prop_hash_end[-h - 1]; sh->prop_hash_end[-h - 1] = sh->prop_count; return 0; } /* find a hashed empty shape matching the prototype. Return NULL if not found */ static JSShape *find_hashed_shape_proto(JSRuntime *rt, JSObject *proto) { JSShape *sh1; uint32_t h, h1; h = shape_initial_hash(proto); h1 = get_shape_hash(h, rt->shape_hash_bits); for(sh1 = rt->shape_hash[h1]; sh1 != NULL; sh1 = sh1->shape_hash_next) { if (sh1->hash == h && sh1->proto == proto && sh1->prop_count == 0) { return sh1; } } return NULL; } /* find a hashed shape matching sh + (prop, prop_flags). Return NULL if not found */ static JSShape *find_hashed_shape_prop(JSRuntime *rt, JSShape *sh, JSAtom atom, int prop_flags) { JSShape *sh1; uint32_t h, h1, i, n; h = sh->hash; h = shape_hash(h, atom); h = shape_hash(h, prop_flags); h1 = get_shape_hash(h, rt->shape_hash_bits); for(sh1 = rt->shape_hash[h1]; sh1 != NULL; sh1 = sh1->shape_hash_next) { /* we test the hash first so that the rest is done only if the shapes really match */ if (sh1->hash == h && sh1->proto == sh->proto && sh1->prop_count == ((n = sh->prop_count) + 1)) { for(i = 0; i < n; i++) { if (unlikely(sh1->prop[i].atom != sh->prop[i].atom) || unlikely(sh1->prop[i].flags != sh->prop[i].flags)) goto next; } if (unlikely(sh1->prop[n].atom != atom) || unlikely(sh1->prop[n].flags != prop_flags)) goto next; return sh1; } next: ; } return NULL; } static __maybe_unused void JS_DumpShape(JSRuntime *rt, int i, JSShape *sh) { char atom_buf[ATOM_GET_STR_BUF_SIZE]; int j; /* XXX: should output readable class prototype */ printf("%5d %3d%c %14p %5d %5d", i, sh->header.ref_count, " *"[sh->is_hashed], (void *)sh->proto, sh->prop_size, sh->prop_count); for(j = 0; j < sh->prop_count; j++) { printf(" %s", JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), sh->prop[j].atom)); } printf("\n"); } static __maybe_unused void JS_DumpShapes(JSRuntime *rt) { int i; JSShape *sh; struct list_head *el; JSObject *p; JSGCObjectHeader *gp; printf("JSShapes: {\n"); printf("%5s %4s %14s %5s %5s %s\n", "SLOT", "REFS", "PROTO", "SIZE", "COUNT", "PROPS"); for(i = 0; i < rt->shape_hash_size; i++) { for(sh = rt->shape_hash[i]; sh != NULL; sh = sh->shape_hash_next) { JS_DumpShape(rt, i, sh); assert(sh->is_hashed); } } /* dump non-hashed shapes */ list_for_each(el, &rt->gc_obj_list) { gp = list_entry(el, JSGCObjectHeader, link); if (gp->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT) { p = (JSObject *)gp; if (!p->shape->is_hashed) { JS_DumpShape(rt, -1, p->shape); } } } printf("}\n"); } static JSValue JS_NewObjectFromShape(JSContext *ctx, JSShape *sh, JSClassID class_id) { JSObject *p; js_trigger_gc(ctx->rt, sizeof(JSObject)); p = js_malloc(ctx, sizeof(JSObject)); if (unlikely(!p)) goto fail; p->class_id = class_id; p->extensible = TRUE; p->free_mark = 0; p->is_exotic = 0; p->fast_array = 0; p->is_constructor = 0; p->is_uncatchable_error = 0; p->tmp_mark = 0; p->first_weak_ref = NULL; p->u.opaque = NULL; p->shape = sh; p->prop = js_malloc(ctx, sizeof(JSProperty) * sh->prop_size); if (unlikely(!p->prop)) { js_free(ctx, p); fail: js_free_shape(ctx->rt, sh); return JS_EXCEPTION; } switch(class_id) { case JS_CLASS_OBJECT: break; case JS_CLASS_ARRAY: { JSProperty *pr; p->is_exotic = 1; p->fast_array = 1; p->u.array.u.values = NULL; p->u.array.count = 0; p->u.array.u1.size = 0; /* the length property is always the first one */ if (likely(sh == ctx->array_shape)) { pr = &p->prop[0]; } else { /* only used for the first array */ /* cannot fail */ pr = add_property(ctx, p, JS_ATOM_length, JS_PROP_WRITABLE | JS_PROP_LENGTH); } pr->u.value = JS_NewInt32(ctx, 0); } break; case JS_CLASS_C_FUNCTION: p->prop[0].u.value = JS_UNDEFINED; break; case JS_CLASS_ARGUMENTS: case JS_CLASS_UINT8C_ARRAY ... JS_CLASS_FLOAT64_ARRAY: p->is_exotic = 1; p->fast_array = 1; p->u.array.u.ptr = NULL; p->u.array.count = 0; break; case JS_CLASS_DATAVIEW: p->u.array.u.ptr = NULL; p->u.array.count = 0; break; case JS_CLASS_NUMBER: case JS_CLASS_STRING: case JS_CLASS_BOOLEAN: case JS_CLASS_SYMBOL: case JS_CLASS_DATE: #ifdef CONFIG_BIGNUM case JS_CLASS_BIG_INT: case JS_CLASS_BIG_FLOAT: case JS_CLASS_BIG_DECIMAL: #endif p->u.object_data = JS_UNDEFINED; goto set_exotic; case JS_CLASS_REGEXP: p->u.regexp.pattern = NULL; p->u.regexp.bytecode = NULL; goto set_exotic; default: set_exotic: if (ctx->rt->class_array[class_id].exotic) { p->is_exotic = 1; } break; } p->header.ref_count = 1; add_gc_object(ctx->rt, &p->header, JS_GC_OBJ_TYPE_JS_OBJECT); return JS_MKPTR(JS_TAG_OBJECT, p); } static JSObject *get_proto_obj(JSValueConst proto_val) { if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_OBJECT) return NULL; else return JS_VALUE_GET_OBJ(proto_val); } /* WARNING: proto must be an object or JS_NULL */ JSValue JS_NewObjectProtoClass(JSContext *ctx, JSValueConst proto_val, JSClassID class_id) { JSShape *sh; JSObject *proto; proto = get_proto_obj(proto_val); sh = find_hashed_shape_proto(ctx->rt, proto); if (likely(sh)) { sh = js_dup_shape(sh); } else { sh = js_new_shape(ctx, proto); if (!sh) return JS_EXCEPTION; } return JS_NewObjectFromShape(ctx, sh, class_id); } #if 0 static JSValue JS_GetObjectData(JSContext *ctx, JSValueConst obj) { JSObject *p; if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { p = JS_VALUE_GET_OBJ(obj); switch(p->class_id) { case JS_CLASS_NUMBER: case JS_CLASS_STRING: case JS_CLASS_BOOLEAN: case JS_CLASS_SYMBOL: case JS_CLASS_DATE: #ifdef CONFIG_BIGNUM case JS_CLASS_BIG_INT: case JS_CLASS_BIG_FLOAT: case JS_CLASS_BIG_DECIMAL: #endif return JS_DupValue(ctx, p->u.object_data); } } return JS_UNDEFINED; } #endif static int JS_SetObjectData(JSContext *ctx, JSValueConst obj, JSValue val) { JSObject *p; if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { p = JS_VALUE_GET_OBJ(obj); switch(p->class_id) { case JS_CLASS_NUMBER: case JS_CLASS_STRING: case JS_CLASS_BOOLEAN: case JS_CLASS_SYMBOL: case JS_CLASS_DATE: #ifdef CONFIG_BIGNUM case JS_CLASS_BIG_INT: case JS_CLASS_BIG_FLOAT: case JS_CLASS_BIG_DECIMAL: #endif JS_FreeValue(ctx, p->u.object_data); p->u.object_data = val; return 0; } } JS_FreeValue(ctx, val); if (!JS_IsException(obj)) JS_ThrowTypeError(ctx, "invalid object type"); return -1; } JSValue JS_NewObjectClass(JSContext *ctx, int class_id) { return JS_NewObjectProtoClass(ctx, ctx->class_proto[class_id], class_id); } JSValue JS_NewObjectProto(JSContext *ctx, JSValueConst proto) { return JS_NewObjectProtoClass(ctx, proto, JS_CLASS_OBJECT); } JSValue JS_NewArray(JSContext *ctx) { return JS_NewObjectFromShape(ctx, js_dup_shape(ctx->array_shape), JS_CLASS_ARRAY); } JSValue JS_NewObject(JSContext *ctx) { /* inline JS_NewObjectClass(ctx, JS_CLASS_OBJECT); */ return JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT], JS_CLASS_OBJECT); } static void js_function_set_properties(JSContext *ctx, JSValueConst func_obj, JSAtom name, int len) { /* ES6 feature non compatible with ES5.1: length is configurable */ JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_length, JS_NewInt32(ctx, len), JS_PROP_CONFIGURABLE); JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_name, JS_AtomToString(ctx, name), JS_PROP_CONFIGURABLE); } static BOOL js_class_has_bytecode(JSClassID class_id) { return (class_id == JS_CLASS_BYTECODE_FUNCTION || class_id == JS_CLASS_GENERATOR_FUNCTION || class_id == JS_CLASS_ASYNC_FUNCTION || class_id == JS_CLASS_ASYNC_GENERATOR_FUNCTION); } /* return NULL without exception if not a function or no bytecode */ static JSFunctionBytecode *JS_GetFunctionBytecode(JSValueConst val) { JSObject *p; if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) return NULL; p = JS_VALUE_GET_OBJ(val); if (!js_class_has_bytecode(p->class_id)) return NULL; return p->u.func.function_bytecode; } static void js_method_set_home_object(JSContext *ctx, JSValueConst func_obj, JSValueConst home_obj) { JSObject *p, *p1; JSFunctionBytecode *b; if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT) return; p = JS_VALUE_GET_OBJ(func_obj); if (!js_class_has_bytecode(p->class_id)) return; b = p->u.func.function_bytecode; if (b->need_home_object) { p1 = p->u.func.home_object; if (p1) { JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1)); } if (JS_VALUE_GET_TAG(home_obj) == JS_TAG_OBJECT) p1 = JS_VALUE_GET_OBJ(JS_DupValue(ctx, home_obj)); else p1 = NULL; p->u.func.home_object = p1; } } static JSValue js_get_function_name(JSContext *ctx, JSAtom name) { JSValue name_str; name_str = JS_AtomToString(ctx, name); if (JS_AtomSymbolHasDescription(ctx, name)) { name_str = JS_ConcatString3(ctx, "[", name_str, "]"); } return name_str; } /* Modify the name of a method according to the atom and 'flags'. 'flags' is a bitmask of JS_PROP_HAS_GET and JS_PROP_HAS_SET. Also set the home object of the method. Return < 0 if exception. */ static int js_method_set_properties(JSContext *ctx, JSValueConst func_obj, JSAtom name, int flags, JSValueConst home_obj) { JSValue name_str; name_str = js_get_function_name(ctx, name); if (flags & JS_PROP_HAS_GET) { name_str = JS_ConcatString3(ctx, "get ", name_str, ""); } else if (flags & JS_PROP_HAS_SET) { name_str = JS_ConcatString3(ctx, "set ", name_str, ""); } if (JS_IsException(name_str)) return -1; if (JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_name, name_str, JS_PROP_CONFIGURABLE) < 0) return -1; js_method_set_home_object(ctx, func_obj, home_obj); return 0; } /* Note: at least 'length' arguments will be readable in 'argv' */ static JSValue JS_NewCFunction3(JSContext *ctx, JSCFunction *func, const char *name, int length, JSCFunctionEnum cproto, int magic, JSValueConst proto_val) { JSValue func_obj; JSObject *p; JSAtom name_atom; func_obj = JS_NewObjectProtoClass(ctx, proto_val, JS_CLASS_C_FUNCTION); if (JS_IsException(func_obj)) return func_obj; p = JS_VALUE_GET_OBJ(func_obj); p->u.cfunc.realm = JS_DupContext(ctx); p->u.cfunc.c_function.generic = func; p->u.cfunc.length = length; p->u.cfunc.cproto = cproto; p->u.cfunc.magic = magic; p->is_constructor = (cproto == JS_CFUNC_constructor || cproto == JS_CFUNC_constructor_magic || cproto == JS_CFUNC_constructor_or_func || cproto == JS_CFUNC_constructor_or_func_magic); if (!name) name = ""; name_atom = JS_NewAtom(ctx, name); js_function_set_properties(ctx, func_obj, name_atom, length); JS_FreeAtom(ctx, name_atom); return func_obj; } /* Note: at least 'length' arguments will be readable in 'argv' */ JSValue JS_NewCFunction2(JSContext *ctx, JSCFunction *func, const char *name, int length, JSCFunctionEnum cproto, int magic) { return JS_NewCFunction3(ctx, func, name, length, cproto, magic, ctx->function_proto); } typedef struct JSCFunctionDataRecord { JSCFunctionData *func; uint8_t length; uint8_t data_len; uint16_t magic; JSValue data[0]; } JSCFunctionDataRecord; static void js_c_function_data_finalizer(JSRuntime *rt, JSValue val) { JSCFunctionDataRecord *s = JS_GetOpaque(val, JS_CLASS_C_FUNCTION_DATA); int i; if (s) { for(i = 0; i < s->data_len; i++) { JS_FreeValueRT(rt, s->data[i]); } js_free_rt(rt, s); } } static void js_c_function_data_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { JSCFunctionDataRecord *s = JS_GetOpaque(val, JS_CLASS_C_FUNCTION_DATA); int i; if (s) { for(i = 0; i < s->data_len; i++) { JS_MarkValue(rt, s->data[i], mark_func); } } } static JSValue js_c_function_data_call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_val, int argc, JSValueConst *argv, int flags) { JSCFunctionDataRecord *s = JS_GetOpaque(func_obj, JS_CLASS_C_FUNCTION_DATA); JSValueConst *arg_buf; int i; /* XXX: could add the function on the stack for debug */ if (unlikely(argc < s->length)) { arg_buf = alloca(sizeof(arg_buf[0]) * s->length); for(i = 0; i < argc; i++) arg_buf[i] = argv[i]; for(i = argc; i < s->length; i++) arg_buf[i] = JS_UNDEFINED; } else { arg_buf = argv; } return s->func(ctx, this_val, argc, arg_buf, s->magic, s->data); } JSValue JS_NewCFunctionData(JSContext *ctx, JSCFunctionData *func, int length, int magic, int data_len, JSValueConst *data) { JSCFunctionDataRecord *s; JSValue func_obj; int i; func_obj = JS_NewObjectProtoClass(ctx, ctx->function_proto, JS_CLASS_C_FUNCTION_DATA); if (JS_IsException(func_obj)) return func_obj; s = js_malloc(ctx, sizeof(*s) + data_len * sizeof(JSValue)); if (!s) { JS_FreeValue(ctx, func_obj); return JS_EXCEPTION; } s->func = func; s->length = length; s->data_len = data_len; s->magic = magic; for(i = 0; i < data_len; i++) s->data[i] = JS_DupValue(ctx, data[i]); JS_SetOpaque(func_obj, s); js_function_set_properties(ctx, func_obj, JS_ATOM_empty_string, length); return func_obj; } static JSContext *js_autoinit_get_realm(JSProperty *pr) { return (JSContext *)(pr->u.init.realm_and_id & ~3); } static JSAutoInitIDEnum js_autoinit_get_id(JSProperty *pr) { return pr->u.init.realm_and_id & 3; } static void js_autoinit_free(JSRuntime *rt, JSProperty *pr) { JS_FreeContext(js_autoinit_get_realm(pr)); } static void js_autoinit_mark(JSRuntime *rt, JSProperty *pr, JS_MarkFunc *mark_func) { mark_func(rt, &js_autoinit_get_realm(pr)->header); } static void free_property(JSRuntime *rt, JSProperty *pr, int prop_flags) { if (unlikely(prop_flags & JS_PROP_TMASK)) { if ((prop_flags & JS_PROP_TMASK) == JS_PROP_GETSET) { if (pr->u.getset.getter) JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter)); if (pr->u.getset.setter) JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter)); } else if ((prop_flags & JS_PROP_TMASK) == JS_PROP_VARREF) { free_var_ref(rt, pr->u.var_ref); } else if ((prop_flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { js_autoinit_free(rt, pr); } } else { JS_FreeValueRT(rt, pr->u.value); } } static force_inline JSShapeProperty *find_own_property1(JSObject *p, JSAtom atom) { JSShape *sh; JSShapeProperty *pr, *prop; intptr_t h; sh = p->shape; h = (uintptr_t)atom & sh->prop_hash_mask; h = sh->prop_hash_end[-h - 1]; prop = get_shape_prop(sh); while (h) { pr = &prop[h - 1]; if (likely(pr->atom == atom)) { return pr; } h = pr->hash_next; } return NULL; } static force_inline JSShapeProperty *find_own_property(JSProperty **ppr, JSObject *p, JSAtom atom) { JSShape *sh; JSShapeProperty *pr, *prop; intptr_t h; sh = p->shape; h = (uintptr_t)atom & sh->prop_hash_mask; h = sh->prop_hash_end[-h - 1]; prop = get_shape_prop(sh); while (h) { pr = &prop[h - 1]; if (likely(pr->atom == atom)) { *ppr = &p->prop[h - 1]; /* the compiler should be able to assume that pr != NULL here */ return pr; } h = pr->hash_next; } *ppr = NULL; return NULL; } /* indicate that the object may be part of a function prototype cycle */ static void set_cycle_flag(JSContext *ctx, JSValueConst obj) { } static void free_var_ref(JSRuntime *rt, JSVarRef *var_ref) { if (var_ref) { assert(var_ref->header.ref_count > 0); if (--var_ref->header.ref_count == 0) { if (var_ref->is_detached) { JS_FreeValueRT(rt, var_ref->value); remove_gc_object(&var_ref->header); } else { list_del(&var_ref->header.link); /* still on the stack */ } js_free_rt(rt, var_ref); } } } static void js_array_finalizer(JSRuntime *rt, JSValue val) { JSObject *p = JS_VALUE_GET_OBJ(val); int i; for(i = 0; i < p->u.array.count; i++) { JS_FreeValueRT(rt, p->u.array.u.values[i]); } js_free_rt(rt, p->u.array.u.values); } static void js_array_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { JSObject *p = JS_VALUE_GET_OBJ(val); int i; for(i = 0; i < p->u.array.count; i++) { JS_MarkValue(rt, p->u.array.u.values[i], mark_func); } } static void js_object_data_finalizer(JSRuntime *rt, JSValue val) { JSObject *p = JS_VALUE_GET_OBJ(val); JS_FreeValueRT(rt, p->u.object_data); p->u.object_data = JS_UNDEFINED; } static void js_object_data_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { JSObject *p = JS_VALUE_GET_OBJ(val); JS_MarkValue(rt, p->u.object_data, mark_func); } static void js_c_function_finalizer(JSRuntime *rt, JSValue val) { JSObject *p = JS_VALUE_GET_OBJ(val); if (p->u.cfunc.realm) JS_FreeContext(p->u.cfunc.realm); } static void js_c_function_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { JSObject *p = JS_VALUE_GET_OBJ(val); if (p->u.cfunc.realm) mark_func(rt, &p->u.cfunc.realm->header); } static void js_bytecode_function_finalizer(JSRuntime *rt, JSValue val) { JSObject *p1, *p = JS_VALUE_GET_OBJ(val); JSFunctionBytecode *b; JSVarRef **var_refs; int i; p1 = p->u.func.home_object; if (p1) { JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, p1)); } b = p->u.func.function_bytecode; if (b) { var_refs = p->u.func.var_refs; if (var_refs) { for(i = 0; i < b->closure_var_count; i++) free_var_ref(rt, var_refs[i]); js_free_rt(rt, var_refs); } JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b)); } } static void js_bytecode_function_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { JSObject *p = JS_VALUE_GET_OBJ(val); JSVarRef **var_refs = p->u.func.var_refs; JSFunctionBytecode *b = p->u.func.function_bytecode; int i; if (p->u.func.home_object) { JS_MarkValue(rt, JS_MKPTR(JS_TAG_OBJECT, p->u.func.home_object), mark_func); } if (b) { if (var_refs) { for(i = 0; i < b->closure_var_count; i++) { JSVarRef *var_ref = var_refs[i]; if (var_ref && var_ref->is_detached) { mark_func(rt, &var_ref->header); } } } /* must mark the function bytecode because template objects may be part of a cycle */ JS_MarkValue(rt, JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b), mark_func); } } static void js_bound_function_finalizer(JSRuntime *rt, JSValue val) { JSObject *p = JS_VALUE_GET_OBJ(val); JSBoundFunction *bf = p->u.bound_function; int i; JS_FreeValueRT(rt, bf->func_obj); JS_FreeValueRT(rt, bf->this_val); for(i = 0; i < bf->argc; i++) { JS_FreeValueRT(rt, bf->argv[i]); } js_free_rt(rt, bf); } static void js_bound_function_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { JSObject *p = JS_VALUE_GET_OBJ(val); JSBoundFunction *bf = p->u.bound_function; int i; JS_MarkValue(rt, bf->func_obj, mark_func); JS_MarkValue(rt, bf->this_val, mark_func); for(i = 0; i < bf->argc; i++) JS_MarkValue(rt, bf->argv[i], mark_func); } static void js_for_in_iterator_finalizer(JSRuntime *rt, JSValue val) { JSObject *p = JS_VALUE_GET_OBJ(val); JSForInIterator *it = p->u.for_in_iterator; JS_FreeValueRT(rt, it->obj); js_free_rt(rt, it); } static void js_for_in_iterator_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { JSObject *p = JS_VALUE_GET_OBJ(val); JSForInIterator *it = p->u.for_in_iterator; JS_MarkValue(rt, it->obj, mark_func); } static void free_object(JSRuntime *rt, JSObject *p) { int i; JSClassFinalizer *finalizer; JSShape *sh; JSShapeProperty *pr; p->free_mark = 1; /* used to tell the object is invalid when freeing cycles */ /* free all the fields */ sh = p->shape; pr = get_shape_prop(sh); for(i = 0; i < sh->prop_count; i++) { free_property(rt, &p->prop[i], pr->flags); pr++; } js_free_rt(rt, p->prop); /* as an optimization we destroy the shape immediately without putting it in gc_zero_ref_count_list */ js_free_shape(rt, sh); /* fail safe */ p->shape = NULL; p->prop = NULL; if (unlikely(p->first_weak_ref)) { reset_weak_ref(rt, p); } finalizer = rt->class_array[p->class_id].finalizer; if (finalizer) (*finalizer)(rt, JS_MKPTR(JS_TAG_OBJECT, p)); /* fail safe */ p->class_id = 0; p->u.opaque = NULL; p->u.func.var_refs = NULL; p->u.func.home_object = NULL; remove_gc_object(&p->header); if (rt->gc_phase == JS_GC_PHASE_REMOVE_CYCLES && p->header.ref_count != 0) { list_add_tail(&p->header.link, &rt->gc_zero_ref_count_list); } else { js_free_rt(rt, p); } } static void free_gc_object(JSRuntime *rt, JSGCObjectHeader *gp) { switch(gp->gc_obj_type) { case JS_GC_OBJ_TYPE_JS_OBJECT: free_object(rt, (JSObject *)gp); break; case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE: free_function_bytecode(rt, (JSFunctionBytecode *)gp); break; default: abort(); } } static void free_zero_refcount(JSRuntime *rt) { struct list_head *el; JSGCObjectHeader *p; rt->gc_phase = JS_GC_PHASE_DECREF; for(;;) { el = rt->gc_zero_ref_count_list.next; if (el == &rt->gc_zero_ref_count_list) break; p = list_entry(el, JSGCObjectHeader, link); assert(p->ref_count == 0); free_gc_object(rt, p); } rt->gc_phase = JS_GC_PHASE_NONE; } /* called with the ref_count of 'v' reaches zero. */ void __JS_FreeValueRT(JSRuntime *rt, JSValue v) { uint32_t tag = JS_VALUE_GET_TAG(v); #ifdef DUMP_FREE { printf("Freeing "); if (tag == JS_TAG_OBJECT) { JS_DumpObject(rt, JS_VALUE_GET_OBJ(v)); } else { JS_DumpValueShort(rt, v); printf("\n"); } } #endif switch(tag) { case JS_TAG_STRING: { JSString *p = JS_VALUE_GET_STRING(v); if (p->atom_type) { JS_FreeAtomStruct(rt, p); } else { #ifdef DUMP_LEAKS list_del(&p->link); #endif js_free_rt(rt, p); } } break; case JS_TAG_OBJECT: case JS_TAG_FUNCTION_BYTECODE: { JSGCObjectHeader *p = JS_VALUE_GET_PTR(v); if (rt->gc_phase != JS_GC_PHASE_REMOVE_CYCLES) { list_del(&p->link); list_add(&p->link, &rt->gc_zero_ref_count_list); if (rt->gc_phase == JS_GC_PHASE_NONE) { free_zero_refcount(rt); } } } break; case JS_TAG_MODULE: abort(); /* never freed here */ break; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: case JS_TAG_BIG_FLOAT: { JSBigFloat *bf = JS_VALUE_GET_PTR(v); bf_delete(&bf->num); js_free_rt(rt, bf); } break; case JS_TAG_BIG_DECIMAL: { JSBigDecimal *bf = JS_VALUE_GET_PTR(v); bfdec_delete(&bf->num); js_free_rt(rt, bf); } break; #endif case JS_TAG_SYMBOL: { JSAtomStruct *p = JS_VALUE_GET_PTR(v); JS_FreeAtomStruct(rt, p); } break; default: printf("__JS_FreeValue: unknown tag=%d\n", tag); abort(); } } void __JS_FreeValue(JSContext *ctx, JSValue v) { __JS_FreeValueRT(ctx->rt, v); } /* garbage collection */ static void add_gc_object(JSRuntime *rt, JSGCObjectHeader *h, JSGCObjectTypeEnum type) { h->mark = 0; h->gc_obj_type = type; list_add_tail(&h->link, &rt->gc_obj_list); } static void remove_gc_object(JSGCObjectHeader *h) { list_del(&h->link); } void JS_MarkValue(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { if (JS_VALUE_HAS_REF_COUNT(val)) { switch(JS_VALUE_GET_TAG(val)) { case JS_TAG_OBJECT: case JS_TAG_FUNCTION_BYTECODE: mark_func(rt, JS_VALUE_GET_PTR(val)); break; default: break; } } } static void mark_children(JSRuntime *rt, JSGCObjectHeader *gp, JS_MarkFunc *mark_func) { switch(gp->gc_obj_type) { case JS_GC_OBJ_TYPE_JS_OBJECT: { JSObject *p = (JSObject *)gp; JSShapeProperty *prs; JSShape *sh; int i; sh = p->shape; mark_func(rt, &sh->header); /* mark all the fields */ prs = get_shape_prop(sh); for(i = 0; i < sh->prop_count; i++) { JSProperty *pr = &p->prop[i]; if (prs->atom != JS_ATOM_NULL) { if (prs->flags & JS_PROP_TMASK) { if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { if (pr->u.getset.getter) mark_func(rt, &pr->u.getset.getter->header); if (pr->u.getset.setter) mark_func(rt, &pr->u.getset.setter->header); } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { if (pr->u.var_ref->is_detached) { /* Note: the tag does not matter provided it is a GC object */ mark_func(rt, &pr->u.var_ref->header); } } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { js_autoinit_mark(rt, pr, mark_func); } } else { JS_MarkValue(rt, pr->u.value, mark_func); } } prs++; } if (p->class_id != JS_CLASS_OBJECT) { JSClassGCMark *gc_mark; gc_mark = rt->class_array[p->class_id].gc_mark; if (gc_mark) gc_mark(rt, JS_MKPTR(JS_TAG_OBJECT, p), mark_func); } } break; case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE: /* the template objects can be part of a cycle */ { JSFunctionBytecode *b = (JSFunctionBytecode *)gp; int i; for(i = 0; i < b->cpool_count; i++) { JS_MarkValue(rt, b->cpool[i], mark_func); } if (b->realm) mark_func(rt, &b->realm->header); } break; case JS_GC_OBJ_TYPE_VAR_REF: { JSVarRef *var_ref = (JSVarRef *)gp; /* only detached variable referenced are taken into account */ assert(var_ref->is_detached); JS_MarkValue(rt, *var_ref->pvalue, mark_func); } break; case JS_GC_OBJ_TYPE_ASYNC_FUNCTION: { JSAsyncFunctionData *s = (JSAsyncFunctionData *)gp; if (s->is_active) async_func_mark(rt, &s->func_state, mark_func); JS_MarkValue(rt, s->resolving_funcs[0], mark_func); JS_MarkValue(rt, s->resolving_funcs[1], mark_func); } break; case JS_GC_OBJ_TYPE_SHAPE: { JSShape *sh = (JSShape *)gp; if (sh->proto != NULL) { mark_func(rt, &sh->proto->header); } } break; case JS_GC_OBJ_TYPE_JS_CONTEXT: { JSContext *ctx = (JSContext *)gp; JS_MarkContext(rt, ctx, mark_func); } break; default: abort(); } } static void gc_decref_child(JSRuntime *rt, JSGCObjectHeader *p) { assert(p->ref_count > 0); p->ref_count--; if (p->ref_count == 0 && p->mark == 1) { list_del(&p->link); list_add_tail(&p->link, &rt->tmp_obj_list); } } static void gc_decref(JSRuntime *rt) { struct list_head *el, *el1; JSGCObjectHeader *p; init_list_head(&rt->tmp_obj_list); /* decrement the refcount of all the children of all the GC objects and move the GC objects with zero refcount to tmp_obj_list */ list_for_each_safe(el, el1, &rt->gc_obj_list) { p = list_entry(el, JSGCObjectHeader, link); assert(p->mark == 0); mark_children(rt, p, gc_decref_child); p->mark = 1; if (p->ref_count == 0) { list_del(&p->link); list_add_tail(&p->link, &rt->tmp_obj_list); } } } static void gc_scan_incref_child(JSRuntime *rt, JSGCObjectHeader *p) { p->ref_count++; if (p->ref_count == 1) { /* ref_count was 0: remove from tmp_obj_list and add at the end of gc_obj_list */ list_del(&p->link); list_add_tail(&p->link, &rt->gc_obj_list); p->mark = 0; /* reset the mark for the next GC call */ } } static void gc_scan_incref_child2(JSRuntime *rt, JSGCObjectHeader *p) { p->ref_count++; } static void gc_scan(JSRuntime *rt) { struct list_head *el; JSGCObjectHeader *p; /* keep the objects with a refcount > 0 and their children. */ list_for_each(el, &rt->gc_obj_list) { p = list_entry(el, JSGCObjectHeader, link); assert(p->ref_count > 0); p->mark = 0; /* reset the mark for the next GC call */ mark_children(rt, p, gc_scan_incref_child); } /* restore the refcount of the objects to be deleted. */ list_for_each(el, &rt->tmp_obj_list) { p = list_entry(el, JSGCObjectHeader, link); mark_children(rt, p, gc_scan_incref_child2); } } static void gc_free_cycles(JSRuntime *rt) { struct list_head *el, *el1; JSGCObjectHeader *p; #ifdef DUMP_GC_FREE BOOL header_done = FALSE; #endif rt->gc_phase = JS_GC_PHASE_REMOVE_CYCLES; for(;;) { el = rt->tmp_obj_list.next; if (el == &rt->tmp_obj_list) break; p = list_entry(el, JSGCObjectHeader, link); /* Only need to free the GC object associated with JS values. The rest will be automatically removed because they must be referenced by them. */ switch(p->gc_obj_type) { case JS_GC_OBJ_TYPE_JS_OBJECT: case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE: #ifdef DUMP_GC_FREE if (!header_done) { printf("Freeing cycles:\n"); JS_DumpObjectHeader(rt); header_done = TRUE; } JS_DumpGCObject(rt, p); #endif free_gc_object(rt, p); break; default: list_del(&p->link); list_add_tail(&p->link, &rt->gc_zero_ref_count_list); break; } } rt->gc_phase = JS_GC_PHASE_NONE; list_for_each_safe(el, el1, &rt->gc_zero_ref_count_list) { p = list_entry(el, JSGCObjectHeader, link); assert(p->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT || p->gc_obj_type == JS_GC_OBJ_TYPE_FUNCTION_BYTECODE); js_free_rt(rt, p); } init_list_head(&rt->gc_zero_ref_count_list); } void JS_RunGC(JSRuntime *rt) { /* decrement the reference of the children of each object. mark = 1 after this pass. */ gc_decref(rt); /* keep the GC objects with a non zero refcount and their childs */ gc_scan(rt); /* free the GC objects in a cycle */ gc_free_cycles(rt); } /* Return false if not an object or if the object has already been freed (zombie objects are visible in finalizers when freeing cycles). */ BOOL JS_IsLiveObject(JSRuntime *rt, JSValueConst obj) { JSObject *p; if (!JS_IsObject(obj)) return FALSE; p = JS_VALUE_GET_OBJ(obj); return !p->free_mark; } /* Compute memory used by various object types */ /* XXX: poor man's approach to handling multiply referenced objects */ typedef struct JSMemoryUsage_helper { double memory_used_count; double str_count; double str_size; int64_t js_func_count; double js_func_size; int64_t js_func_code_size; int64_t js_func_pc2line_count; int64_t js_func_pc2line_size; } JSMemoryUsage_helper; static void compute_value_size(JSValueConst val, JSMemoryUsage_helper *hp); static void compute_jsstring_size(JSString *str, JSMemoryUsage_helper *hp) { if (!str->atom_type) { /* atoms are handled separately */ double s_ref_count = str->header.ref_count; hp->str_count += 1 / s_ref_count; hp->str_size += ((sizeof(*str) + (str->len << str->is_wide_char) + 1 - str->is_wide_char) / s_ref_count); } } static void compute_bytecode_size(JSFunctionBytecode *b, JSMemoryUsage_helper *hp) { int memory_used_count, js_func_size, i; memory_used_count = 0; js_func_size = offsetof(JSFunctionBytecode, debug); if (b->vardefs) { js_func_size += (b->arg_count + b->var_count) * sizeof(*b->vardefs); } if (b->cpool) { js_func_size += b->cpool_count * sizeof(*b->cpool); for (i = 0; i < b->cpool_count; i++) { JSValueConst val = b->cpool[i]; compute_value_size(val, hp); } } if (b->closure_var) { js_func_size += b->closure_var_count * sizeof(*b->closure_var); } if (!b->read_only_bytecode && b->byte_code_buf) { hp->js_func_code_size += b->byte_code_len; } if (b->has_debug) { js_func_size += sizeof(*b) - offsetof(JSFunctionBytecode, debug); if (b->debug.source) { memory_used_count++; js_func_size += b->debug.source_len + 1; } if (b->debug.pc2line_len) { memory_used_count++; hp->js_func_pc2line_count += 1; hp->js_func_pc2line_size += b->debug.pc2line_len; } } hp->js_func_size += js_func_size; hp->js_func_count += 1; hp->memory_used_count += memory_used_count; } static void compute_value_size(JSValueConst val, JSMemoryUsage_helper *hp) { switch(JS_VALUE_GET_TAG(val)) { case JS_TAG_STRING: compute_jsstring_size(JS_VALUE_GET_STRING(val), hp); break; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: case JS_TAG_BIG_FLOAT: case JS_TAG_BIG_DECIMAL: /* should track JSBigFloat usage */ break; #endif } } void JS_ComputeMemoryUsage(JSRuntime *rt, JSMemoryUsage *s) { struct list_head *el, *el1; int i; JSMemoryUsage_helper mem = { 0 }, *hp = &mem; memset(s, 0, sizeof(*s)); s->malloc_count = rt->malloc_state.malloc_count; s->malloc_size = rt->malloc_state.malloc_size; s->malloc_limit = rt->malloc_state.malloc_limit; s->memory_used_count = 2; /* rt + rt->class_array */ s->memory_used_size = sizeof(JSRuntime) + sizeof(JSValue) * rt->class_count; list_for_each(el, &rt->context_list) { JSContext *ctx = list_entry(el, JSContext, link); JSShape *sh = ctx->array_shape; s->memory_used_count += 2; /* ctx + ctx->class_proto */ s->memory_used_size += sizeof(JSContext) + sizeof(JSValue) * rt->class_count; s->binary_object_count += ctx->binary_object_count; s->binary_object_size += ctx->binary_object_size; /* the hashed shapes are counted separately */ if (sh && !sh->is_hashed) { int hash_size = sh->prop_hash_mask + 1; s->shape_count++; s->shape_size += get_shape_size(hash_size, sh->prop_size); } list_for_each(el1, &ctx->loaded_modules) { JSModuleDef *m = list_entry(el1, JSModuleDef, link); s->memory_used_count += 1; s->memory_used_size += sizeof(*m); if (m->req_module_entries) { s->memory_used_count += 1; s->memory_used_size += m->req_module_entries_count * sizeof(*m->req_module_entries); } if (m->export_entries) { s->memory_used_count += 1; s->memory_used_size += m->export_entries_count * sizeof(*m->export_entries); for (i = 0; i < m->export_entries_count; i++) { JSExportEntry *me = &m->export_entries[i]; if (me->export_type == JS_EXPORT_TYPE_LOCAL && me->u.local.var_ref) { /* potential multiple count */ s->memory_used_count += 1; compute_value_size(me->u.local.var_ref->value, hp); } } } if (m->star_export_entries) { s->memory_used_count += 1; s->memory_used_size += m->star_export_entries_count * sizeof(*m->star_export_entries); } if (m->import_entries) { s->memory_used_count += 1; s->memory_used_size += m->import_entries_count * sizeof(*m->import_entries); } compute_value_size(m->module_ns, hp); compute_value_size(m->func_obj, hp); } } list_for_each(el, &rt->gc_obj_list) { JSGCObjectHeader *gp = list_entry(el, JSGCObjectHeader, link); JSObject *p; JSShape *sh; JSShapeProperty *prs; /* XXX: could count the other GC object types too */ if (gp->gc_obj_type == JS_GC_OBJ_TYPE_FUNCTION_BYTECODE) { compute_bytecode_size((JSFunctionBytecode *)gp, hp); continue; } else if (gp->gc_obj_type != JS_GC_OBJ_TYPE_JS_OBJECT) { continue; } p = (JSObject *)gp; sh = p->shape; s->obj_count++; if (p->prop) { s->memory_used_count++; s->prop_size += sh->prop_size * sizeof(*p->prop); s->prop_count += sh->prop_count; prs = get_shape_prop(sh); for(i = 0; i < sh->prop_count; i++) { JSProperty *pr = &p->prop[i]; if (prs->atom != JS_ATOM_NULL && !(prs->flags & JS_PROP_TMASK)) { compute_value_size(pr->u.value, hp); } prs++; } } /* the hashed shapes are counted separately */ if (!sh->is_hashed) { int hash_size = sh->prop_hash_mask + 1; s->shape_count++; s->shape_size += get_shape_size(hash_size, sh->prop_size); } switch(p->class_id) { case JS_CLASS_ARRAY: /* u.array | length */ case JS_CLASS_ARGUMENTS: /* u.array | length */ s->array_count++; if (p->fast_array) { s->fast_array_count++; if (p->u.array.u.values) { s->memory_used_count++; s->memory_used_size += p->u.array.count * sizeof(*p->u.array.u.values); s->fast_array_elements += p->u.array.count; for (i = 0; i < p->u.array.count; i++) { compute_value_size(p->u.array.u.values[i], hp); } } } break; case JS_CLASS_NUMBER: /* u.object_data */ case JS_CLASS_STRING: /* u.object_data */ case JS_CLASS_BOOLEAN: /* u.object_data */ case JS_CLASS_SYMBOL: /* u.object_data */ case JS_CLASS_DATE: /* u.object_data */ #ifdef CONFIG_BIGNUM case JS_CLASS_BIG_INT: /* u.object_data */ case JS_CLASS_BIG_FLOAT: /* u.object_data */ case JS_CLASS_BIG_DECIMAL: /* u.object_data */ #endif compute_value_size(p->u.object_data, hp); break; case JS_CLASS_C_FUNCTION: /* u.cfunc */ s->c_func_count++; break; case JS_CLASS_BYTECODE_FUNCTION: /* u.func */ { JSFunctionBytecode *b = p->u.func.function_bytecode; JSVarRef **var_refs = p->u.func.var_refs; /* home_object: object will be accounted for in list scan */ if (var_refs) { s->memory_used_count++; s->js_func_size += b->closure_var_count * sizeof(*var_refs); for (i = 0; i < b->closure_var_count; i++) { if (var_refs[i]) { double ref_count = var_refs[i]->header.ref_count; s->memory_used_count += 1 / ref_count; s->js_func_size += sizeof(*var_refs[i]) / ref_count; /* handle non object closed values */ if (var_refs[i]->pvalue == &var_refs[i]->value) { /* potential multiple count */ compute_value_size(var_refs[i]->value, hp); } } } } } break; case JS_CLASS_BOUND_FUNCTION: /* u.bound_function */ { JSBoundFunction *bf = p->u.bound_function; /* func_obj and this_val are objects */ for (i = 0; i < bf->argc; i++) { compute_value_size(bf->argv[i], hp); } s->memory_used_count += 1; s->memory_used_size += sizeof(*bf) + bf->argc * sizeof(*bf->argv); } break; case JS_CLASS_C_FUNCTION_DATA: /* u.c_function_data_record */ { JSCFunctionDataRecord *fd = p->u.c_function_data_record; if (fd) { for (i = 0; i < fd->data_len; i++) { compute_value_size(fd->data[i], hp); } s->memory_used_count += 1; s->memory_used_size += sizeof(*fd) + fd->data_len * sizeof(*fd->data); } } break; case JS_CLASS_REGEXP: /* u.regexp */ compute_jsstring_size(p->u.regexp.pattern, hp); compute_jsstring_size(p->u.regexp.bytecode, hp); break; case JS_CLASS_FOR_IN_ITERATOR: /* u.for_in_iterator */ { JSForInIterator *it = p->u.for_in_iterator; if (it) { compute_value_size(it->obj, hp); s->memory_used_count += 1; s->memory_used_size += sizeof(*it); } } break; case JS_CLASS_ARRAY_BUFFER: /* u.array_buffer */ case JS_CLASS_SHARED_ARRAY_BUFFER: /* u.array_buffer */ { JSArrayBuffer *abuf = p->u.array_buffer; if (abuf) { s->memory_used_count += 1; s->memory_used_size += sizeof(*abuf); if (abuf->data) { s->memory_used_count += 1; s->memory_used_size += abuf->byte_length; } } } break; case JS_CLASS_GENERATOR: /* u.generator_data */ case JS_CLASS_UINT8C_ARRAY: /* u.typed_array / u.array */ case JS_CLASS_INT8_ARRAY: /* u.typed_array / u.array */ case JS_CLASS_UINT8_ARRAY: /* u.typed_array / u.array */ case JS_CLASS_INT16_ARRAY: /* u.typed_array / u.array */ case JS_CLASS_UINT16_ARRAY: /* u.typed_array / u.array */ case JS_CLASS_INT32_ARRAY: /* u.typed_array / u.array */ case JS_CLASS_UINT32_ARRAY: /* u.typed_array / u.array */ #ifdef CONFIG_BIGNUM case JS_CLASS_BIG_INT64_ARRAY: /* u.typed_array / u.array */ case JS_CLASS_BIG_UINT64_ARRAY: /* u.typed_array / u.array */ #endif case JS_CLASS_FLOAT32_ARRAY: /* u.typed_array / u.array */ case JS_CLASS_FLOAT64_ARRAY: /* u.typed_array / u.array */ case JS_CLASS_DATAVIEW: /* u.typed_array */ #ifdef CONFIG_BIGNUM case JS_CLASS_FLOAT_ENV: /* u.float_env */ #endif case JS_CLASS_MAP: /* u.map_state */ case JS_CLASS_SET: /* u.map_state */ case JS_CLASS_WEAKMAP: /* u.map_state */ case JS_CLASS_WEAKSET: /* u.map_state */ case JS_CLASS_MAP_ITERATOR: /* u.map_iterator_data */ case JS_CLASS_SET_ITERATOR: /* u.map_iterator_data */ case JS_CLASS_ARRAY_ITERATOR: /* u.array_iterator_data */ case JS_CLASS_STRING_ITERATOR: /* u.array_iterator_data */ case JS_CLASS_PROXY: /* u.proxy_data */ case JS_CLASS_PROMISE: /* u.promise_data */ case JS_CLASS_PROMISE_RESOLVE_FUNCTION: /* u.promise_function_data */ case JS_CLASS_PROMISE_REJECT_FUNCTION: /* u.promise_function_data */ case JS_CLASS_ASYNC_FUNCTION_RESOLVE: /* u.async_function_data */ case JS_CLASS_ASYNC_FUNCTION_REJECT: /* u.async_function_data */ case JS_CLASS_ASYNC_FROM_SYNC_ITERATOR: /* u.async_from_sync_iterator_data */ case JS_CLASS_ASYNC_GENERATOR: /* u.async_generator_data */ /* TODO */ default: /* XXX: class definition should have an opaque block size */ if (p->u.opaque) { s->memory_used_count += 1; } break; } } s->obj_size += s->obj_count * sizeof(JSObject); /* hashed shapes */ s->memory_used_count++; /* rt->shape_hash */ s->memory_used_size += sizeof(rt->shape_hash[0]) * rt->shape_hash_size; for(i = 0; i < rt->shape_hash_size; i++) { JSShape *sh; for(sh = rt->shape_hash[i]; sh != NULL; sh = sh->shape_hash_next) { int hash_size = sh->prop_hash_mask + 1; s->shape_count++; s->shape_size += get_shape_size(hash_size, sh->prop_size); } } /* atoms */ s->memory_used_count += 2; /* rt->atom_array, rt->atom_hash */ s->atom_count = rt->atom_count; s->atom_size = sizeof(rt->atom_array[0]) * rt->atom_size + sizeof(rt->atom_hash[0]) * rt->atom_hash_size; for(i = 0; i < rt->atom_size; i++) { JSAtomStruct *p = rt->atom_array[i]; if (!atom_is_free(p)) { s->atom_size += (sizeof(*p) + (p->len << p->is_wide_char) + 1 - p->is_wide_char); } } s->str_count = round(mem.str_count); s->str_size = round(mem.str_size); s->js_func_count = mem.js_func_count; s->js_func_size = round(mem.js_func_size); s->js_func_code_size = mem.js_func_code_size; s->js_func_pc2line_count = mem.js_func_pc2line_count; s->js_func_pc2line_size = mem.js_func_pc2line_size; s->memory_used_count += round(mem.memory_used_count) + s->atom_count + s->str_count + s->obj_count + s->shape_count + s->js_func_count + s->js_func_pc2line_count; s->memory_used_size += s->atom_size + s->str_size + s->obj_size + s->prop_size + s->shape_size + s->js_func_size + s->js_func_code_size + s->js_func_pc2line_size; } void JS_DumpMemoryUsage(FILE *fp, const JSMemoryUsage *s, JSRuntime *rt) { fprintf(fp, "QuickJS memory usage -- " #ifdef CONFIG_BIGNUM "BigNum " #endif CONFIG_VERSION " version, %d-bit, malloc limit: %"PRId64"\n\n", (int)sizeof(void *) * 8, (int64_t)(ssize_t)s->malloc_limit); #if 1 if (rt) { static const struct { const char *name; size_t size; } object_types[] = { { "JSRuntime", sizeof(JSRuntime) }, { "JSContext", sizeof(JSContext) }, { "JSObject", sizeof(JSObject) }, { "JSString", sizeof(JSString) }, { "JSFunctionBytecode", sizeof(JSFunctionBytecode) }, }; int i, usage_size_ok = 0; for(i = 0; i < countof(object_types); i++) { unsigned int size = object_types[i].size; void *p = js_malloc_rt(rt, size); if (p) { unsigned int size1 = js_malloc_usable_size_rt(rt, p); if (size1 >= size) { usage_size_ok = 1; fprintf(fp, " %3u + %-2u %s\n", size, size1 - size, object_types[i].name); } js_free_rt(rt, p); } } if (!usage_size_ok) { fprintf(fp, " malloc_usable_size unavailable\n"); } { int obj_classes[JS_CLASS_INIT_COUNT + 1] = { 0 }; int class_id; struct list_head *el; list_for_each(el, &rt->gc_obj_list) { JSGCObjectHeader *gp = list_entry(el, JSGCObjectHeader, link); JSObject *p; if (gp->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT) { p = (JSObject *)gp; obj_classes[min_uint32(p->class_id, JS_CLASS_INIT_COUNT)]++; } } fprintf(fp, "\n" "JSObject classes\n"); if (obj_classes[0]) fprintf(fp, " %5d %2.0d %s\n", obj_classes[0], 0, "none"); for (class_id = 1; class_id < JS_CLASS_INIT_COUNT; class_id++) { if (obj_classes[class_id]) { char buf[ATOM_GET_STR_BUF_SIZE]; fprintf(fp, " %5d %2.0d %s\n", obj_classes[class_id], class_id, JS_AtomGetStrRT(rt, buf, sizeof(buf), js_std_class_def[class_id - 1].class_name)); } } if (obj_classes[JS_CLASS_INIT_COUNT]) fprintf(fp, " %5d %2.0d %s\n", obj_classes[JS_CLASS_INIT_COUNT], 0, "other"); } fprintf(fp, "\n"); } #endif fprintf(fp, "%-20s %8s %8s\n", "NAME", "COUNT", "SIZE"); if (s->malloc_count) { fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per block)\n", "memory allocated", s->malloc_count, s->malloc_size, (double)s->malloc_size / s->malloc_count); fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%d overhead, %0.1f average slack)\n", "memory used", s->memory_used_count, s->memory_used_size, MALLOC_OVERHEAD, ((double)(s->malloc_size - s->memory_used_size) / s->memory_used_count)); } if (s->atom_count) { fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per atom)\n", "atoms", s->atom_count, s->atom_size, (double)s->atom_size / s->atom_count); } if (s->str_count) { fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per string)\n", "strings", s->str_count, s->str_size, (double)s->str_size / s->str_count); } if (s->obj_count) { fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per object)\n", "objects", s->obj_count, s->obj_size, (double)s->obj_size / s->obj_count); fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per object)\n", " properties", s->prop_count, s->prop_size, (double)s->prop_count / s->obj_count); fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per shape)\n", " shapes", s->shape_count, s->shape_size, (double)s->shape_size / s->shape_count); } if (s->js_func_count) { fprintf(fp, "%-20s %8"PRId64" %8"PRId64"\n", "bytecode functions", s->js_func_count, s->js_func_size); fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per function)\n", " bytecode", s->js_func_count, s->js_func_code_size, (double)s->js_func_code_size / s->js_func_count); if (s->js_func_pc2line_count) { fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per function)\n", " pc2line", s->js_func_pc2line_count, s->js_func_pc2line_size, (double)s->js_func_pc2line_size / s->js_func_pc2line_count); } } if (s->c_func_count) { fprintf(fp, "%-20s %8"PRId64"\n", "C functions", s->c_func_count); } if (s->array_count) { fprintf(fp, "%-20s %8"PRId64"\n", "arrays", s->array_count); if (s->fast_array_count) { fprintf(fp, "%-20s %8"PRId64"\n", " fast arrays", s->fast_array_count); fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per fast array)\n", " elements", s->fast_array_elements, s->fast_array_elements * (int)sizeof(JSValue), (double)s->fast_array_elements / s->fast_array_count); } } if (s->binary_object_count) { fprintf(fp, "%-20s %8"PRId64" %8"PRId64"\n", "binary objects", s->binary_object_count, s->binary_object_size); } } JSValue JS_GetGlobalObject(JSContext *ctx) { return JS_DupValue(ctx, ctx->global_obj); } /* WARNING: obj is freed */ JSValue JS_Throw(JSContext *ctx, JSValue obj) { JSRuntime *rt = ctx->rt; JS_FreeValue(ctx, rt->current_exception); rt->current_exception = obj; return JS_EXCEPTION; } /* return the pending exception (cannot be called twice). */ JSValue JS_GetException(JSContext *ctx) { JSValue val; JSRuntime *rt = ctx->rt; val = rt->current_exception; rt->current_exception = JS_NULL; return val; } static void dbuf_put_leb128(DynBuf *s, uint32_t v) { uint32_t a; for(;;) { a = v & 0x7f; v >>= 7; if (v != 0) { dbuf_putc(s, a | 0x80); } else { dbuf_putc(s, a); break; } } } static void dbuf_put_sleb128(DynBuf *s, int32_t v1) { uint32_t v = v1; dbuf_put_leb128(s, (2 * v) ^ -(v >> 31)); } static int get_leb128(uint32_t *pval, const uint8_t *buf, const uint8_t *buf_end) { const uint8_t *ptr = buf; uint32_t v, a, i; v = 0; for(i = 0; i < 5; i++) { if (unlikely(ptr >= buf_end)) break; a = *ptr++; v |= (a & 0x7f) << (i * 7); if (!(a & 0x80)) { *pval = v; return ptr - buf; } } *pval = 0; return -1; } static int get_sleb128(int32_t *pval, const uint8_t *buf, const uint8_t *buf_end) { int ret; uint32_t val; ret = get_leb128(&val, buf, buf_end); if (ret < 0) { *pval = 0; return -1; } *pval = (val >> 1) ^ -(val & 1); return ret; } static int find_line_num(JSContext *ctx, JSFunctionBytecode *b, uint32_t pc_value) { const uint8_t *p_end, *p; int new_line_num, line_num, pc, v, ret; unsigned int op; if (!b->has_debug || !b->debug.pc2line_buf) { /* function was stripped */ return -1; } p = b->debug.pc2line_buf; p_end = p + b->debug.pc2line_len; pc = 0; line_num = b->debug.line_num; while (p < p_end) { op = *p++; if (op == 0) { uint32_t val; ret = get_leb128(&val, p, p_end); if (ret < 0) goto fail; pc += val; p += ret; ret = get_sleb128(&v, p, p_end); if (ret < 0) { fail: /* should never happen */ return b->debug.line_num; } p += ret; new_line_num = line_num + v; } else { op -= PC2LINE_OP_FIRST; pc += (op / PC2LINE_RANGE); new_line_num = line_num + (op % PC2LINE_RANGE) + PC2LINE_BASE; } if (pc_value < pc) return line_num; line_num = new_line_num; } return line_num; } /* in order to avoid executing arbitrary code during the stack trace generation, we only look at simple 'name' properties containing a string. */ static const char *get_func_name(JSContext *ctx, JSValueConst func) { JSProperty *pr; JSShapeProperty *prs; JSValueConst val; if (JS_VALUE_GET_TAG(func) != JS_TAG_OBJECT) return NULL; prs = find_own_property(&pr, JS_VALUE_GET_OBJ(func), JS_ATOM_name); if (!prs) return NULL; if ((prs->flags & JS_PROP_TMASK) != JS_PROP_NORMAL) return NULL; val = pr->u.value; if (JS_VALUE_GET_TAG(val) != JS_TAG_STRING) return NULL; return JS_ToCString(ctx, val); } #define JS_BACKTRACE_FLAG_SKIP_FIRST_LEVEL (1 << 0) /* only taken into account if filename is provided */ #define JS_BACKTRACE_FLAG_SINGLE_LEVEL (1 << 1) /* if filename != NULL, an additional level is added with the filename and line number information (used for parse error). */ static void build_backtrace(JSContext *ctx, JSValueConst error_obj, const char *filename, int line_num, int backtrace_flags) { JSStackFrame *sf; JSValue str; DynBuf dbuf; const char *func_name_str; const char *str1; JSObject *p; BOOL backtrace_barrier; js_dbuf_init(ctx, &dbuf); if (filename) { dbuf_printf(&dbuf, " at %s", filename); if (line_num != -1) dbuf_printf(&dbuf, ":%d", line_num); dbuf_putc(&dbuf, '\n'); str = JS_NewString(ctx, filename); JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_fileName, str, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_lineNumber, JS_NewInt32(ctx, line_num), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); if (backtrace_flags & JS_BACKTRACE_FLAG_SINGLE_LEVEL) goto done; } for(sf = ctx->rt->current_stack_frame; sf != NULL; sf = sf->prev_frame) { if (backtrace_flags & JS_BACKTRACE_FLAG_SKIP_FIRST_LEVEL) { backtrace_flags &= ~JS_BACKTRACE_FLAG_SKIP_FIRST_LEVEL; continue; } func_name_str = get_func_name(ctx, sf->cur_func); if (!func_name_str || func_name_str[0] == '\0') str1 = ""; else str1 = func_name_str; dbuf_printf(&dbuf, " at %s", str1); JS_FreeCString(ctx, func_name_str); p = JS_VALUE_GET_OBJ(sf->cur_func); backtrace_barrier = FALSE; if (js_class_has_bytecode(p->class_id)) { JSFunctionBytecode *b; const char *atom_str; int line_num1; b = p->u.func.function_bytecode; backtrace_barrier = b->backtrace_barrier; if (b->has_debug) { line_num1 = find_line_num(ctx, b, sf->cur_pc - b->byte_code_buf - 1); atom_str = JS_AtomToCString(ctx, b->debug.filename); dbuf_printf(&dbuf, " (%s", atom_str ? atom_str : ""); JS_FreeCString(ctx, atom_str); if (line_num1 != -1) dbuf_printf(&dbuf, ":%d", line_num1); dbuf_putc(&dbuf, ')'); } } else { dbuf_printf(&dbuf, " (native)"); } dbuf_putc(&dbuf, '\n'); /* stop backtrace if JS_EVAL_FLAG_BACKTRACE_BARRIER was used */ if (backtrace_barrier) break; } done: dbuf_putc(&dbuf, '\0'); if (dbuf_error(&dbuf)) str = JS_NULL; else str = JS_NewString(ctx, (char *)dbuf.buf); dbuf_free(&dbuf); JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_stack, str, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); } /* Note: it is important that no exception is returned by this function */ static BOOL is_backtrace_needed(JSContext *ctx, JSValueConst obj) { JSObject *p; if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) return FALSE; p = JS_VALUE_GET_OBJ(obj); if (p->class_id != JS_CLASS_ERROR) return FALSE; if (find_own_property1(p, JS_ATOM_stack)) return FALSE; return TRUE; } JSValue JS_NewError(JSContext *ctx) { return JS_NewObjectClass(ctx, JS_CLASS_ERROR); } static JSValue JS_ThrowError2(JSContext *ctx, JSErrorEnum error_num, const char *fmt, va_list ap, BOOL add_backtrace) { char buf[256]; JSValue obj, ret; vsnprintf(buf, sizeof(buf), fmt, ap); obj = JS_NewObjectProtoClass(ctx, ctx->native_error_proto[error_num], JS_CLASS_ERROR); if (unlikely(JS_IsException(obj))) { /* out of memory: throw JS_NULL to avoid recursing */ obj = JS_NULL; } else { JS_DefinePropertyValue(ctx, obj, JS_ATOM_message, JS_NewString(ctx, buf), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); } if (add_backtrace) { build_backtrace(ctx, obj, NULL, 0, 0); } ret = JS_Throw(ctx, obj); return ret; } static JSValue JS_ThrowError(JSContext *ctx, JSErrorEnum error_num, const char *fmt, va_list ap) { JSRuntime *rt = ctx->rt; JSStackFrame *sf; BOOL add_backtrace; /* the backtrace is added later if called from a bytecode function */ sf = rt->current_stack_frame; add_backtrace = !rt->in_out_of_memory && (!sf || (JS_GetFunctionBytecode(sf->cur_func) == NULL)); return JS_ThrowError2(ctx, error_num, fmt, ap, add_backtrace); } JSValue __attribute__((format(printf, 2, 3))) JS_ThrowSyntaxError(JSContext *ctx, const char *fmt, ...) { JSValue val; va_list ap; va_start(ap, fmt); val = JS_ThrowError(ctx, JS_SYNTAX_ERROR, fmt, ap); va_end(ap); return val; } JSValue __attribute__((format(printf, 2, 3))) JS_ThrowTypeError(JSContext *ctx, const char *fmt, ...) { JSValue val; va_list ap; va_start(ap, fmt); val = JS_ThrowError(ctx, JS_TYPE_ERROR, fmt, ap); va_end(ap); return val; } static int __attribute__((format(printf, 3, 4))) JS_ThrowTypeErrorOrFalse(JSContext *ctx, int flags, const char *fmt, ...) { va_list ap; if ((flags & JS_PROP_THROW) || ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) { va_start(ap, fmt); JS_ThrowError(ctx, JS_TYPE_ERROR, fmt, ap); va_end(ap); return -1; } else { return FALSE; } } /* never use it directly */ static JSValue __attribute__((format(printf, 3, 4))) __JS_ThrowTypeErrorAtom(JSContext *ctx, JSAtom atom, const char *fmt, ...) { char buf[ATOM_GET_STR_BUF_SIZE]; return JS_ThrowTypeError(ctx, fmt, JS_AtomGetStr(ctx, buf, sizeof(buf), atom)); } /* never use it directly */ static JSValue __attribute__((format(printf, 3, 4))) __JS_ThrowSyntaxErrorAtom(JSContext *ctx, JSAtom atom, const char *fmt, ...) { char buf[ATOM_GET_STR_BUF_SIZE]; return JS_ThrowSyntaxError(ctx, fmt, JS_AtomGetStr(ctx, buf, sizeof(buf), atom)); } /* %s is replaced by 'atom'. The macro is used so that gcc can check the format string. */ #define JS_ThrowTypeErrorAtom(ctx, fmt, atom) __JS_ThrowTypeErrorAtom(ctx, atom, fmt, "") #define JS_ThrowSyntaxErrorAtom(ctx, fmt, atom) __JS_ThrowSyntaxErrorAtom(ctx, atom, fmt, "") static int JS_ThrowTypeErrorReadOnly(JSContext *ctx, int flags, JSAtom atom) { if ((flags & JS_PROP_THROW) || ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) { JS_ThrowTypeErrorAtom(ctx, "'%s' is read-only", atom); return -1; } else { return FALSE; } } JSValue __attribute__((format(printf, 2, 3))) JS_ThrowReferenceError(JSContext *ctx, const char *fmt, ...) { JSValue val; va_list ap; va_start(ap, fmt); val = JS_ThrowError(ctx, JS_REFERENCE_ERROR, fmt, ap); va_end(ap); return val; } JSValue __attribute__((format(printf, 2, 3))) JS_ThrowRangeError(JSContext *ctx, const char *fmt, ...) { JSValue val; va_list ap; va_start(ap, fmt); val = JS_ThrowError(ctx, JS_RANGE_ERROR, fmt, ap); va_end(ap); return val; } JSValue __attribute__((format(printf, 2, 3))) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...) { JSValue val; va_list ap; va_start(ap, fmt); val = JS_ThrowError(ctx, JS_INTERNAL_ERROR, fmt, ap); va_end(ap); return val; } JSValue JS_ThrowOutOfMemory(JSContext *ctx) { JSRuntime *rt = ctx->rt; if (!rt->in_out_of_memory) { rt->in_out_of_memory = TRUE; JS_ThrowInternalError(ctx, "out of memory"); rt->in_out_of_memory = FALSE; } return JS_EXCEPTION; } static JSValue JS_ThrowStackOverflow(JSContext *ctx) { return JS_ThrowInternalError(ctx, "stack overflow"); } static JSValue JS_ThrowTypeErrorNotAnObject(JSContext *ctx) { return JS_ThrowTypeError(ctx, "not an object"); } static JSValue JS_ThrowTypeErrorNotASymbol(JSContext *ctx) { return JS_ThrowTypeError(ctx, "not a symbol"); } static JSValue JS_ThrowReferenceErrorNotDefined(JSContext *ctx, JSAtom name) { char buf[ATOM_GET_STR_BUF_SIZE]; return JS_ThrowReferenceError(ctx, "'%s' is not defined", JS_AtomGetStr(ctx, buf, sizeof(buf), name)); } static JSValue JS_ThrowReferenceErrorUninitialized(JSContext *ctx, JSAtom name) { char buf[ATOM_GET_STR_BUF_SIZE]; return JS_ThrowReferenceError(ctx, "%s is not initialized", name == JS_ATOM_NULL ? "lexical variable" : JS_AtomGetStr(ctx, buf, sizeof(buf), name)); } static JSValue JS_ThrowTypeErrorInvalidClass(JSContext *ctx, int class_id) { JSRuntime *rt = ctx->rt; JSAtom name; name = rt->class_array[class_id].class_name; return JS_ThrowTypeErrorAtom(ctx, "%s object expected", name); } static no_inline __exception int __js_poll_interrupts(JSContext *ctx) { JSRuntime *rt = ctx->rt; ctx->interrupt_counter = JS_INTERRUPT_COUNTER_INIT; if (rt->interrupt_handler) { if (rt->interrupt_handler(rt, rt->interrupt_opaque)) { /* XXX: should set a specific flag to avoid catching */ JS_ThrowInternalError(ctx, "interrupted"); JS_SetUncatchableError(ctx, ctx->rt->current_exception, TRUE); return -1; } } return 0; } static inline __exception int js_poll_interrupts(JSContext *ctx) { if (unlikely(--ctx->interrupt_counter <= 0)) { return __js_poll_interrupts(ctx); } else { return 0; } } /* return -1 (exception) or TRUE/FALSE */ static int JS_SetPrototypeInternal(JSContext *ctx, JSValueConst obj, JSValueConst proto_val, BOOL throw_flag) { JSObject *proto, *p, *p1; JSShape *sh; if (throw_flag) { if (JS_VALUE_GET_TAG(obj) == JS_TAG_NULL || JS_VALUE_GET_TAG(obj) == JS_TAG_UNDEFINED) goto not_obj; } else { if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) goto not_obj; } p = JS_VALUE_GET_OBJ(obj); if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_OBJECT) { if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_NULL) { not_obj: JS_ThrowTypeErrorNotAnObject(ctx); return -1; } proto = NULL; } else { proto = JS_VALUE_GET_OBJ(proto_val); } if (throw_flag && JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) return TRUE; if (unlikely(p->class_id == JS_CLASS_PROXY)) return js_proxy_setPrototypeOf(ctx, obj, proto_val, throw_flag); sh = p->shape; if (sh->proto == proto) return TRUE; if (!p->extensible) { if (throw_flag) { JS_ThrowTypeError(ctx, "object is not extensible"); return -1; } else { return FALSE; } } if (proto) { /* check if there is a cycle */ p1 = proto; do { if (p1 == p) { if (throw_flag) { JS_ThrowTypeError(ctx, "circular prototype chain"); return -1; } else { return FALSE; } } /* Note: for Proxy objects, proto is NULL */ p1 = p1->shape->proto; } while (p1 != NULL); JS_DupValue(ctx, proto_val); } if (js_shape_prepare_update(ctx, p, NULL)) return -1; sh = p->shape; if (sh->proto) JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, sh->proto)); sh->proto = proto; return TRUE; } /* return -1 (exception) or TRUE/FALSE */ int JS_SetPrototype(JSContext *ctx, JSValueConst obj, JSValueConst proto_val) { return JS_SetPrototypeInternal(ctx, obj, proto_val, TRUE); } /* Only works for primitive types, otherwise return JS_NULL. */ static JSValueConst JS_GetPrototypePrimitive(JSContext *ctx, JSValueConst val) { switch(JS_VALUE_GET_NORM_TAG(val)) { #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: val = ctx->class_proto[JS_CLASS_BIG_INT]; break; case JS_TAG_BIG_FLOAT: val = ctx->class_proto[JS_CLASS_BIG_FLOAT]; break; case JS_TAG_BIG_DECIMAL: val = ctx->class_proto[JS_CLASS_BIG_DECIMAL]; break; #endif case JS_TAG_INT: case JS_TAG_FLOAT64: val = ctx->class_proto[JS_CLASS_NUMBER]; break; case JS_TAG_BOOL: val = ctx->class_proto[JS_CLASS_BOOLEAN]; break; case JS_TAG_STRING: val = ctx->class_proto[JS_CLASS_STRING]; break; case JS_TAG_SYMBOL: val = ctx->class_proto[JS_CLASS_SYMBOL]; break; case JS_TAG_OBJECT: case JS_TAG_NULL: case JS_TAG_UNDEFINED: default: val = JS_NULL; break; } return val; } /* Return an Object, JS_NULL or JS_EXCEPTION in case of Proxy object. */ JSValue JS_GetPrototype(JSContext *ctx, JSValueConst obj) { JSValue val; if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { JSObject *p; p = JS_VALUE_GET_OBJ(obj); if (unlikely(p->class_id == JS_CLASS_PROXY)) { val = js_proxy_getPrototypeOf(ctx, obj); } else { p = p->shape->proto; if (!p) val = JS_NULL; else val = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); } } else { val = JS_DupValue(ctx, JS_GetPrototypePrimitive(ctx, obj)); } return val; } static JSValue JS_GetPrototypeFree(JSContext *ctx, JSValue obj) { JSValue obj1; obj1 = JS_GetPrototype(ctx, obj); JS_FreeValue(ctx, obj); return obj1; } /* return TRUE, FALSE or (-1) in case of exception */ static int JS_OrdinaryIsInstanceOf(JSContext *ctx, JSValueConst val, JSValueConst obj) { JSValue obj_proto; JSObject *proto; const JSObject *p, *proto1; BOOL ret; if (!JS_IsFunction(ctx, obj)) return FALSE; p = JS_VALUE_GET_OBJ(obj); if (p->class_id == JS_CLASS_BOUND_FUNCTION) { JSBoundFunction *s = p->u.bound_function; return JS_IsInstanceOf(ctx, val, s->func_obj); } /* Only explicitly boxed values are instances of constructors */ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) return FALSE; obj_proto = JS_GetProperty(ctx, obj, JS_ATOM_prototype); if (JS_VALUE_GET_TAG(obj_proto) != JS_TAG_OBJECT) { if (!JS_IsException(obj_proto)) JS_ThrowTypeError(ctx, "operand 'prototype' property is not an object"); ret = -1; goto done; } proto = JS_VALUE_GET_OBJ(obj_proto); p = JS_VALUE_GET_OBJ(val); for(;;) { proto1 = p->shape->proto; if (!proto1) { /* slow case if proxy in the prototype chain */ if (unlikely(p->class_id == JS_CLASS_PROXY)) { JSValue obj1; obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, (JSObject *)p)); for(;;) { obj1 = JS_GetPrototypeFree(ctx, obj1); if (JS_IsException(obj1)) { ret = -1; break; } if (JS_IsNull(obj1)) { ret = FALSE; break; } if (proto == JS_VALUE_GET_OBJ(obj1)) { JS_FreeValue(ctx, obj1); ret = TRUE; break; } /* must check for timeout to avoid infinite loop */ if (js_poll_interrupts(ctx)) { JS_FreeValue(ctx, obj1); ret = -1; break; } } } else { ret = FALSE; } break; } p = proto1; if (proto == p) { ret = TRUE; break; } } done: JS_FreeValue(ctx, obj_proto); return ret; } /* return TRUE, FALSE or (-1) in case of exception */ int JS_IsInstanceOf(JSContext *ctx, JSValueConst val, JSValueConst obj) { JSValue method; if (!JS_IsObject(obj)) goto fail; method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_hasInstance); if (JS_IsException(method)) return -1; if (!JS_IsNull(method) && !JS_IsUndefined(method)) { JSValue ret; ret = JS_CallFree(ctx, method, obj, 1, &val); return JS_ToBoolFree(ctx, ret); } /* legacy case */ if (!JS_IsFunction(ctx, obj)) { fail: JS_ThrowTypeError(ctx, "invalid 'instanceof' right operand"); return -1; } return JS_OrdinaryIsInstanceOf(ctx, val, obj); } typedef int JSAutoInitFunc(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque); static JSAutoInitFunc *js_autoinit_func_table[] = { js_instantiate_prototype, /* JS_AUTOINIT_ID_PROTOTYPE */ js_module_ns_autoinit, /* JS_AUTOINIT_ID_MODULE_NS */ JS_InstantiateFunctionListItem, /* JS_AUTOINIT_ID_PROP */ }; static int JS_AutoInitProperty(JSContext *ctx, JSObject *p, JSAtom prop, JSProperty *pr) { int ret; JSContext *realm; JSAutoInitFunc *func; realm = js_autoinit_get_realm(pr); func = js_autoinit_func_table[js_autoinit_get_id(pr)]; ret = func(realm, p, prop, pr->u.init.opaque); return ret; } JSValue JS_GetPropertyInternal(JSContext *ctx, JSValueConst obj, JSAtom prop, JSValueConst this_obj, BOOL throw_ref_error) { JSObject *p; JSProperty *pr; JSShapeProperty *prs; uint32_t tag; tag = JS_VALUE_GET_TAG(obj); if (unlikely(tag != JS_TAG_OBJECT)) { switch(tag) { case JS_TAG_NULL: return JS_ThrowTypeErrorAtom(ctx, "cannot read property '%s' of null", prop); case JS_TAG_UNDEFINED: return JS_ThrowTypeErrorAtom(ctx, "cannot read property '%s' of undefined", prop); case JS_TAG_EXCEPTION: return JS_EXCEPTION; case JS_TAG_STRING: { JSString *p1 = JS_VALUE_GET_STRING(obj); if (__JS_AtomIsTaggedInt(prop)) { uint32_t idx, ch; idx = __JS_AtomToUInt32(prop); if (idx < p1->len) { if (p1->is_wide_char) ch = p1->u.str16[idx]; else ch = p1->u.str8[idx]; return js_new_string_char(ctx, ch); } } else if (prop == JS_ATOM_length) { return JS_NewInt32(ctx, p1->len); } } break; default: break; } /* cannot raise an exception */ p = JS_VALUE_GET_OBJ(JS_GetPrototypePrimitive(ctx, obj)); if (!p) return JS_UNDEFINED; } else { p = JS_VALUE_GET_OBJ(obj); } for(;;) { prs = find_own_property(&pr, p, prop); if (prs) { /* found */ if (unlikely(prs->flags & JS_PROP_TMASK)) { if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { if (unlikely(!pr->u.getset.getter)) { return JS_UNDEFINED; } else { JSValue func = JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter); /* Note: the field could be removed in the getter */ func = JS_DupValue(ctx, func); return JS_CallFree(ctx, func, this_obj, 0, NULL); } } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { JSValue val = *pr->u.var_ref->pvalue; if (unlikely(JS_IsUninitialized(val))) return JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); return JS_DupValue(ctx, val); } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { /* Instantiate property and retry */ if (JS_AutoInitProperty(ctx, p, prop, pr)) return JS_EXCEPTION; continue; } } else { return JS_DupValue(ctx, pr->u.value); } } if (unlikely(p->is_exotic)) { /* exotic behaviors */ if (p->fast_array) { if (__JS_AtomIsTaggedInt(prop)) { uint32_t idx = __JS_AtomToUInt32(prop); if (idx < p->u.array.count) { /* we avoid duplicating the code */ return JS_GetPropertyUint32(ctx, JS_MKPTR(JS_TAG_OBJECT, p), idx); } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY && p->class_id <= JS_CLASS_FLOAT64_ARRAY) { goto typed_array_oob; } } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY && p->class_id <= JS_CLASS_FLOAT64_ARRAY) { int ret; ret = JS_AtomIsNumericIndex(ctx, prop); if (ret != 0) { if (ret < 0) return JS_EXCEPTION; typed_array_oob: if (typed_array_is_detached(ctx, p)) return JS_ThrowTypeErrorDetachedArrayBuffer(ctx); return JS_UNDEFINED; } } } else { const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; if (em) { if (em->get_property) { JSValue obj1, retval; /* XXX: should pass throw_ref_error */ /* Note: if 'p' is a prototype, it can be freed in the called function */ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); retval = em->get_property(ctx, obj1, prop, this_obj); JS_FreeValue(ctx, obj1); return retval; } if (em->get_own_property) { JSPropertyDescriptor desc; int ret; JSValue obj1; /* Note: if 'p' is a prototype, it can be freed in the called function */ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); ret = em->get_own_property(ctx, &desc, obj1, prop); JS_FreeValue(ctx, obj1); if (ret < 0) return JS_EXCEPTION; if (ret) { if (desc.flags & JS_PROP_GETSET) { JS_FreeValue(ctx, desc.setter); return JS_CallFree(ctx, desc.getter, this_obj, 0, NULL); } else { return desc.value; } } } } } } p = p->shape->proto; if (!p) break; } if (unlikely(throw_ref_error)) { return JS_ThrowReferenceErrorNotDefined(ctx, prop); } else { return JS_UNDEFINED; } } static JSValue JS_ThrowTypeErrorPrivateNotFound(JSContext *ctx, JSAtom atom) { return JS_ThrowTypeErrorAtom(ctx, "private class field '%s' does not exist", atom); } /* Private fields can be added even on non extensible objects or Proxies */ static int JS_DefinePrivateField(JSContext *ctx, JSValueConst obj, JSValueConst name, JSValue val) { JSObject *p; JSShapeProperty *prs; JSProperty *pr; JSAtom prop; if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) { JS_ThrowTypeErrorNotAnObject(ctx); goto fail; } /* safety check */ if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL)) { JS_ThrowTypeErrorNotASymbol(ctx); goto fail; } prop = js_symbol_to_atom(ctx, (JSValue)name); p = JS_VALUE_GET_OBJ(obj); prs = find_own_property(&pr, p, prop); if (prs) { JS_ThrowTypeErrorAtom(ctx, "private class field '%s' already exists", prop); goto fail; } pr = add_property(ctx, p, prop, JS_PROP_C_W_E); if (unlikely(!pr)) { fail: JS_FreeValue(ctx, val); return -1; } pr->u.value = val; return 0; } static JSValue JS_GetPrivateField(JSContext *ctx, JSValueConst obj, JSValueConst name) { JSObject *p; JSShapeProperty *prs; JSProperty *pr; JSAtom prop; if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) return JS_ThrowTypeErrorNotAnObject(ctx); /* safety check */ if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL)) return JS_ThrowTypeErrorNotASymbol(ctx); prop = js_symbol_to_atom(ctx, (JSValue)name); p = JS_VALUE_GET_OBJ(obj); prs = find_own_property(&pr, p, prop); if (!prs) { JS_ThrowTypeErrorPrivateNotFound(ctx, prop); return JS_EXCEPTION; } return JS_DupValue(ctx, pr->u.value); } static int JS_SetPrivateField(JSContext *ctx, JSValueConst obj, JSValueConst name, JSValue val) { JSObject *p; JSShapeProperty *prs; JSProperty *pr; JSAtom prop; if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) { JS_ThrowTypeErrorNotAnObject(ctx); goto fail; } /* safety check */ if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL)) { JS_ThrowTypeErrorNotASymbol(ctx); goto fail; } prop = js_symbol_to_atom(ctx, (JSValue)name); p = JS_VALUE_GET_OBJ(obj); prs = find_own_property(&pr, p, prop); if (!prs) { JS_ThrowTypeErrorPrivateNotFound(ctx, prop); fail: JS_FreeValue(ctx, val); return -1; } set_value(ctx, &pr->u.value, val); return 0; } static int JS_AddBrand(JSContext *ctx, JSValueConst obj, JSValueConst home_obj) { JSObject *p, *p1; JSShapeProperty *prs; JSProperty *pr; JSValue brand; JSAtom brand_atom; if (unlikely(JS_VALUE_GET_TAG(home_obj) != JS_TAG_OBJECT)) { JS_ThrowTypeErrorNotAnObject(ctx); return -1; } p = JS_VALUE_GET_OBJ(home_obj); prs = find_own_property(&pr, p, JS_ATOM_Private_brand); if (!prs) { brand = JS_NewSymbolFromAtom(ctx, JS_ATOM_brand, JS_ATOM_TYPE_PRIVATE); if (JS_IsException(brand)) return -1; /* if the brand is not present, add it */ pr = add_property(ctx, p, JS_ATOM_Private_brand, JS_PROP_C_W_E); if (!pr) { JS_FreeValue(ctx, brand); return -1; } pr->u.value = JS_DupValue(ctx, brand); } else { brand = JS_DupValue(ctx, pr->u.value); } brand_atom = js_symbol_to_atom(ctx, brand); if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) { JS_ThrowTypeErrorNotAnObject(ctx); JS_FreeAtom(ctx, brand_atom); return -1; } p1 = JS_VALUE_GET_OBJ(obj); pr = add_property(ctx, p1, brand_atom, JS_PROP_C_W_E); JS_FreeAtom(ctx, brand_atom); if (!pr) return -1; pr->u.value = JS_UNDEFINED; return 0; } static int JS_CheckBrand(JSContext *ctx, JSValueConst obj, JSValueConst func) { JSObject *p, *p1, *home_obj; JSShapeProperty *prs; JSProperty *pr; JSValueConst brand; /* get the home object of 'func' */ if (unlikely(JS_VALUE_GET_TAG(func) != JS_TAG_OBJECT)) { not_obj: JS_ThrowTypeErrorNotAnObject(ctx); return -1; } p1 = JS_VALUE_GET_OBJ(func); if (!js_class_has_bytecode(p1->class_id)) goto not_obj; home_obj = p1->u.func.home_object; if (!home_obj) goto not_obj; prs = find_own_property(&pr, home_obj, JS_ATOM_Private_brand); if (!prs) { JS_ThrowTypeError(ctx, "expecting private field"); return -1; } brand = pr->u.value; /* safety check */ if (unlikely(JS_VALUE_GET_TAG(brand) != JS_TAG_SYMBOL)) goto not_obj; /* get the brand array of 'obj' */ if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) goto not_obj; p = JS_VALUE_GET_OBJ(obj); prs = find_own_property(&pr, p, js_symbol_to_atom(ctx, (JSValue)brand)); if (!prs) { JS_ThrowTypeError(ctx, "invalid brand on object"); return -1; } return 0; } static int num_keys_cmp(const void *p1, const void *p2, void *opaque) { JSContext *ctx = opaque; JSAtom atom1 = ((const JSPropertyEnum *)p1)->atom; JSAtom atom2 = ((const JSPropertyEnum *)p2)->atom; uint32_t v1, v2; BOOL atom1_is_integer, atom2_is_integer; atom1_is_integer = JS_AtomIsArrayIndex(ctx, &v1, atom1); atom2_is_integer = JS_AtomIsArrayIndex(ctx, &v2, atom2); assert(atom1_is_integer && atom2_is_integer); if (v1 < v2) return -1; else if (v1 == v2) return 0; else return 1; } static void js_free_prop_enum(JSContext *ctx, JSPropertyEnum *tab, uint32_t len) { uint32_t i; if (tab) { for(i = 0; i < len; i++) JS_FreeAtom(ctx, tab[i].atom); js_free(ctx, tab); } } /* return < 0 in case if exception, 0 if OK. ptab and its atoms must be freed by the user. */ static int __exception JS_GetOwnPropertyNamesInternal(JSContext *ctx, JSPropertyEnum **ptab, uint32_t *plen, JSObject *p, int flags) { int i, j; JSShape *sh; JSShapeProperty *prs; JSPropertyEnum *tab_atom, *tab_exotic; JSAtom atom; uint32_t num_keys_count, str_keys_count, sym_keys_count, atom_count; uint32_t num_index, str_index, sym_index, exotic_count; BOOL is_enumerable, num_sorted; uint32_t num_key; JSAtomKindEnum kind; /* clear pointer for consistency in case of failure */ *ptab = NULL; *plen = 0; /* compute the number of returned properties */ num_keys_count = 0; str_keys_count = 0; sym_keys_count = 0; exotic_count = 0; tab_exotic = NULL; sh = p->shape; for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) { atom = prs->atom; if (atom != JS_ATOM_NULL) { is_enumerable = ((prs->flags & JS_PROP_ENUMERABLE) != 0); kind = JS_AtomGetKind(ctx, atom); if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) && ((flags >> kind) & 1) != 0) { /* need to raise an exception in case of the module name space (implicit GetOwnProperty) */ if (unlikely((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) && (flags & (JS_GPN_SET_ENUM | JS_GPN_ENUM_ONLY))) { JSVarRef *var_ref = p->prop[i].u.var_ref; if (unlikely(JS_IsUninitialized(*var_ref->pvalue))) { JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); return -1; } } if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) { num_keys_count++; } else if (kind == JS_ATOM_KIND_STRING) { str_keys_count++; } else { sym_keys_count++; } } } } if (p->is_exotic) { if (p->fast_array) { /* the implicit GetOwnProperty raises an exception if the typed array is detached */ if ((flags & (JS_GPN_SET_ENUM | JS_GPN_ENUM_ONLY)) && (p->class_id >= JS_CLASS_UINT8C_ARRAY && p->class_id <= JS_CLASS_FLOAT64_ARRAY) && typed_array_is_detached(ctx, p) && typed_array_get_length(ctx, p) != 0) { JS_ThrowTypeErrorDetachedArrayBuffer(ctx); return -1; } if (flags & JS_GPN_STRING_MASK) { num_keys_count += p->u.array.count; } } else { const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; if (em && em->get_own_property_names) { if (em->get_own_property_names(ctx, &tab_exotic, &exotic_count, JS_MKPTR(JS_TAG_OBJECT, p))) return -1; for(i = 0; i < exotic_count; i++) { atom = tab_exotic[i].atom; kind = JS_AtomGetKind(ctx, atom); if (((flags >> kind) & 1) != 0) { is_enumerable = FALSE; if (flags & (JS_GPN_SET_ENUM | JS_GPN_ENUM_ONLY)) { JSPropertyDescriptor desc; int res; /* set the "is_enumerable" field if necessary */ res = JS_GetOwnPropertyInternal(ctx, &desc, p, atom); if (res < 0) { js_free_prop_enum(ctx, tab_exotic, exotic_count); return -1; } if (res) { is_enumerable = ((desc.flags & JS_PROP_ENUMERABLE) != 0); js_free_desc(ctx, &desc); } tab_exotic[i].is_enumerable = is_enumerable; } if (!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) { if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) { num_keys_count++; } else if (kind == JS_ATOM_KIND_STRING) { str_keys_count++; } else { sym_keys_count++; } } } } } } } /* fill them */ atom_count = num_keys_count + str_keys_count + sym_keys_count; /* avoid allocating 0 bytes */ tab_atom = js_malloc(ctx, sizeof(tab_atom[0]) * max_int(atom_count, 1)); if (!tab_atom) { js_free_prop_enum(ctx, tab_exotic, exotic_count); return -1; } num_index = 0; str_index = num_keys_count; sym_index = str_index + str_keys_count; num_sorted = TRUE; sh = p->shape; for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) { atom = prs->atom; if (atom != JS_ATOM_NULL) { is_enumerable = ((prs->flags & JS_PROP_ENUMERABLE) != 0); kind = JS_AtomGetKind(ctx, atom); if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) && ((flags >> kind) & 1) != 0) { if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) { j = num_index++; num_sorted = FALSE; } else if (kind == JS_ATOM_KIND_STRING) { j = str_index++; } else { j = sym_index++; } tab_atom[j].atom = JS_DupAtom(ctx, atom); tab_atom[j].is_enumerable = is_enumerable; } } } if (p->is_exotic) { if (p->fast_array) { if (flags & JS_GPN_STRING_MASK) { for(i = 0; i < p->u.array.count; i++) { tab_atom[num_index].atom = __JS_AtomFromUInt32(i); if (tab_atom[num_index].atom == JS_ATOM_NULL) { js_free_prop_enum(ctx, tab_exotic, exotic_count); js_free_prop_enum(ctx, tab_atom, num_index); return -1; } tab_atom[num_index].is_enumerable = TRUE; num_index++; } } } if (exotic_count > 0) { for(i = 0; i < exotic_count; i++) { atom = tab_exotic[i].atom; is_enumerable = tab_exotic[i].is_enumerable; kind = JS_AtomGetKind(ctx, atom); if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) && ((flags >> kind) & 1) != 0) { if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) { j = num_index++; num_sorted = FALSE; } else if (kind == JS_ATOM_KIND_STRING) { j = str_index++; } else { j = sym_index++; } tab_atom[j].atom = atom; tab_atom[j].is_enumerable = is_enumerable; } else { JS_FreeAtom(ctx, atom); } } } js_free(ctx, tab_exotic); } assert(num_index == num_keys_count); assert(str_index == num_keys_count + str_keys_count); assert(sym_index == atom_count); if (num_keys_count != 0 && !num_sorted) { rqsort(tab_atom, num_keys_count, sizeof(tab_atom[0]), num_keys_cmp, ctx); } *ptab = tab_atom; *plen = atom_count; return 0; } int JS_GetOwnPropertyNames(JSContext *ctx, JSPropertyEnum **ptab, uint32_t *plen, JSValueConst obj, int flags) { if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) { JS_ThrowTypeErrorNotAnObject(ctx); return -1; } return JS_GetOwnPropertyNamesInternal(ctx, ptab, plen, JS_VALUE_GET_OBJ(obj), flags); } /* Return -1 if exception, FALSE if the property does not exist, TRUE if it exists. If TRUE is returned, the property descriptor 'desc' is filled present. */ static int JS_GetOwnPropertyInternal(JSContext *ctx, JSPropertyDescriptor *desc, JSObject *p, JSAtom prop) { JSShapeProperty *prs; JSProperty *pr; retry: prs = find_own_property(&pr, p, prop); if (prs) { if (desc) { desc->flags = prs->flags & JS_PROP_C_W_E; desc->getter = JS_UNDEFINED; desc->setter = JS_UNDEFINED; desc->value = JS_UNDEFINED; if (unlikely(prs->flags & JS_PROP_TMASK)) { if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { desc->flags |= JS_PROP_GETSET; if (pr->u.getset.getter) desc->getter = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter)); if (pr->u.getset.setter) desc->setter = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter)); } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { JSValue val = *pr->u.var_ref->pvalue; if (unlikely(JS_IsUninitialized(val))) { JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); return -1; } desc->value = JS_DupValue(ctx, val); } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { /* Instantiate property and retry */ if (JS_AutoInitProperty(ctx, p, prop, pr)) return -1; goto retry; } } else { desc->value = JS_DupValue(ctx, pr->u.value); } } else { /* for consistency, send the exception even if desc is NULL */ if (unlikely((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF)) { if (unlikely(JS_IsUninitialized(*pr->u.var_ref->pvalue))) { JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); return -1; } } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { /* nothing to do: delay instantiation until actual value and/or attributes are read */ } } return TRUE; } if (p->is_exotic) { if (p->fast_array) { /* specific case for fast arrays */ if (__JS_AtomIsTaggedInt(prop)) { uint32_t idx; idx = __JS_AtomToUInt32(prop); if (idx < p->u.array.count) { if (desc) { desc->flags = JS_PROP_WRITABLE | JS_PROP_ENUMERABLE; if (p->class_id == JS_CLASS_ARRAY || p->class_id == JS_CLASS_ARGUMENTS) desc->flags |= JS_PROP_CONFIGURABLE; desc->getter = JS_UNDEFINED; desc->setter = JS_UNDEFINED; desc->value = JS_GetPropertyUint32(ctx, JS_MKPTR(JS_TAG_OBJECT, p), idx); } return TRUE; } } if (p->class_id >= JS_CLASS_UINT8C_ARRAY && p->class_id <= JS_CLASS_FLOAT64_ARRAY) { int ret; ret = JS_AtomIsNumericIndex(ctx, prop); if (ret != 0) { if (ret < 0) return -1; if (typed_array_is_detached(ctx, p)) { JS_ThrowTypeErrorDetachedArrayBuffer(ctx); return -1; } } } } else { const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; if (em && em->get_own_property) { return em->get_own_property(ctx, desc, JS_MKPTR(JS_TAG_OBJECT, p), prop); } } } return FALSE; } int JS_GetOwnProperty(JSContext *ctx, JSPropertyDescriptor *desc, JSValueConst obj, JSAtom prop) { if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) { JS_ThrowTypeErrorNotAnObject(ctx); return -1; } return JS_GetOwnPropertyInternal(ctx, desc, JS_VALUE_GET_OBJ(obj), prop); } /* return -1 if exception (Proxy object only) or TRUE/FALSE */ int JS_IsExtensible(JSContext *ctx, JSValueConst obj) { JSObject *p; if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) return FALSE; p = JS_VALUE_GET_OBJ(obj); if (unlikely(p->class_id == JS_CLASS_PROXY)) return js_proxy_isExtensible(ctx, obj); else return p->extensible; } /* return -1 if exception (Proxy object only) or TRUE/FALSE */ int JS_PreventExtensions(JSContext *ctx, JSValueConst obj) { JSObject *p; if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) return FALSE; p = JS_VALUE_GET_OBJ(obj); if (unlikely(p->class_id == JS_CLASS_PROXY)) return js_proxy_preventExtensions(ctx, obj); p->extensible = FALSE; return TRUE; } /* return -1 if exception otherwise TRUE or FALSE */ int JS_HasProperty(JSContext *ctx, JSValueConst obj, JSAtom prop) { JSObject *p; int ret; JSValue obj1; if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) return FALSE; p = JS_VALUE_GET_OBJ(obj); for(;;) { if (p->is_exotic) { const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; if (em && em->has_property) { /* has_property can free the prototype */ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); ret = em->has_property(ctx, obj1, prop); JS_FreeValue(ctx, obj1); return ret; } } /* JS_GetOwnPropertyInternal can free the prototype */ JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); ret = JS_GetOwnPropertyInternal(ctx, NULL, p, prop); JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); if (ret != 0) return ret; if (p->class_id >= JS_CLASS_UINT8C_ARRAY && p->class_id <= JS_CLASS_FLOAT64_ARRAY) { ret = JS_AtomIsNumericIndex(ctx, prop); if (ret != 0) { if (ret < 0) return -1; /* the detached array test was done in JS_GetOwnPropertyInternal() */ return FALSE; } } p = p->shape->proto; if (!p) break; } return FALSE; } /* val must be a symbol */ static JSAtom js_symbol_to_atom(JSContext *ctx, JSValue val) { JSAtomStruct *p = JS_VALUE_GET_PTR(val); return js_get_atom_index(ctx->rt, p); } /* return JS_ATOM_NULL in case of exception */ JSAtom JS_ValueToAtom(JSContext *ctx, JSValueConst val) { JSAtom atom; uint32_t tag; tag = JS_VALUE_GET_TAG(val); if (tag == JS_TAG_INT && (uint32_t)JS_VALUE_GET_INT(val) <= JS_ATOM_MAX_INT) { /* fast path for integer values */ atom = __JS_AtomFromUInt32(JS_VALUE_GET_INT(val)); } else if (tag == JS_TAG_SYMBOL) { JSAtomStruct *p = JS_VALUE_GET_PTR(val); atom = JS_DupAtom(ctx, js_get_atom_index(ctx->rt, p)); } else { JSValue str; str = JS_ToPropertyKey(ctx, val); if (JS_IsException(str)) return JS_ATOM_NULL; if (JS_VALUE_GET_TAG(str) == JS_TAG_SYMBOL) { atom = js_symbol_to_atom(ctx, str); } else { atom = JS_NewAtomStr(ctx, JS_VALUE_GET_STRING(str)); } } return atom; } static JSValue JS_GetPropertyValue(JSContext *ctx, JSValueConst this_obj, JSValue prop) { JSAtom atom; JSValue ret; if (likely(JS_VALUE_GET_TAG(this_obj) == JS_TAG_OBJECT && JS_VALUE_GET_TAG(prop) == JS_TAG_INT)) { JSObject *p; uint32_t idx, len; /* fast path for array access */ p = JS_VALUE_GET_OBJ(this_obj); idx = JS_VALUE_GET_INT(prop); len = (uint32_t)p->u.array.count; if (unlikely(idx >= len)) goto slow_path; switch(p->class_id) { case JS_CLASS_ARRAY: case JS_CLASS_ARGUMENTS: return JS_DupValue(ctx, p->u.array.u.values[idx]); case JS_CLASS_INT8_ARRAY: return JS_NewInt32(ctx, p->u.array.u.int8_ptr[idx]); case JS_CLASS_UINT8C_ARRAY: case JS_CLASS_UINT8_ARRAY: return JS_NewInt32(ctx, p->u.array.u.uint8_ptr[idx]); case JS_CLASS_INT16_ARRAY: return JS_NewInt32(ctx, p->u.array.u.int16_ptr[idx]); case JS_CLASS_UINT16_ARRAY: return JS_NewInt32(ctx, p->u.array.u.uint16_ptr[idx]); case JS_CLASS_INT32_ARRAY: return JS_NewInt32(ctx, p->u.array.u.int32_ptr[idx]); case JS_CLASS_UINT32_ARRAY: return JS_NewUint32(ctx, p->u.array.u.uint32_ptr[idx]); #ifdef CONFIG_BIGNUM case JS_CLASS_BIG_INT64_ARRAY: return JS_NewBigInt64(ctx, p->u.array.u.int64_ptr[idx]); case JS_CLASS_BIG_UINT64_ARRAY: return JS_NewBigUint64(ctx, p->u.array.u.uint64_ptr[idx]); #endif case JS_CLASS_FLOAT32_ARRAY: return __JS_NewFloat64(ctx, p->u.array.u.float_ptr[idx]); case JS_CLASS_FLOAT64_ARRAY: return __JS_NewFloat64(ctx, p->u.array.u.double_ptr[idx]); default: goto slow_path; } } else { slow_path: atom = JS_ValueToAtom(ctx, prop); JS_FreeValue(ctx, prop); if (unlikely(atom == JS_ATOM_NULL)) return JS_EXCEPTION; ret = JS_GetProperty(ctx, this_obj, atom); JS_FreeAtom(ctx, atom); return ret; } } JSValue JS_GetPropertyUint32(JSContext *ctx, JSValueConst this_obj, uint32_t idx) { return JS_GetPropertyValue(ctx, this_obj, JS_NewUint32(ctx, idx)); } /* Check if an object has a generalized numeric property. Return value: -1 for exception, TRUE if property exists, stored into *pval, FALSE if proprty does not exist. */ static int JS_TryGetPropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx, JSValue *pval) { JSValue val = JS_UNDEFINED; JSAtom prop; int present; if (likely((uint64_t)idx <= JS_ATOM_MAX_INT)) { /* fast path */ present = JS_HasProperty(ctx, obj, __JS_AtomFromUInt32(idx)); if (present > 0) { val = JS_GetPropertyValue(ctx, obj, JS_NewInt32(ctx, idx)); if (unlikely(JS_IsException(val))) present = -1; } } else { prop = JS_NewAtomInt64(ctx, idx); present = -1; if (likely(prop != JS_ATOM_NULL)) { present = JS_HasProperty(ctx, obj, prop); if (present > 0) { val = JS_GetProperty(ctx, obj, prop); if (unlikely(JS_IsException(val))) present = -1; } JS_FreeAtom(ctx, prop); } } *pval = val; return present; } static JSValue JS_GetPropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx) { JSAtom prop; JSValue val; if ((uint64_t)idx <= INT32_MAX) { /* fast path for fast arrays */ return JS_GetPropertyValue(ctx, obj, JS_NewInt32(ctx, idx)); } prop = JS_NewAtomInt64(ctx, idx); if (prop == JS_ATOM_NULL) return JS_EXCEPTION; val = JS_GetProperty(ctx, obj, prop); JS_FreeAtom(ctx, prop); return val; } JSValue JS_GetPropertyStr(JSContext *ctx, JSValueConst this_obj, const char *prop) { JSAtom atom; JSValue ret; atom = JS_NewAtom(ctx, prop); ret = JS_GetProperty(ctx, this_obj, atom); JS_FreeAtom(ctx, atom); return ret; } /* Note: the property value is not initialized. Return NULL if memory error. */ static JSProperty *add_property(JSContext *ctx, JSObject *p, JSAtom prop, int prop_flags) { JSShape *sh, *new_sh; sh = p->shape; if (sh->is_hashed) { /* try to find an existing shape */ new_sh = find_hashed_shape_prop(ctx->rt, sh, prop, prop_flags); if (new_sh) { /* matching shape found: use it */ /* the property array may need to be resized */ if (new_sh->prop_size != sh->prop_size) { JSProperty *new_prop; new_prop = js_realloc(ctx, p->prop, sizeof(p->prop[0]) * new_sh->prop_size); if (!new_prop) return NULL; p->prop = new_prop; } p->shape = js_dup_shape(new_sh); js_free_shape(ctx->rt, sh); return &p->prop[new_sh->prop_count - 1]; } else if (sh->header.ref_count != 1) { /* if the shape is shared, clone it */ new_sh = js_clone_shape(ctx, sh); if (!new_sh) return NULL; /* hash the cloned shape */ new_sh->is_hashed = TRUE; js_shape_hash_link(ctx->rt, new_sh); js_free_shape(ctx->rt, p->shape); p->shape = new_sh; } } assert(p->shape->header.ref_count == 1); if (add_shape_property(ctx, &p->shape, p, prop, prop_flags)) return NULL; return &p->prop[p->shape->prop_count - 1]; } /* can be called on Array or Arguments objects. return < 0 if memory alloc error. */ static no_inline __exception int convert_fast_array_to_array(JSContext *ctx, JSObject *p) { JSProperty *pr; JSShape *sh; JSValue *tab; uint32_t i, len, new_count; if (js_shape_prepare_update(ctx, p, NULL)) return -1; len = p->u.array.count; /* resize the properties once to simplify the error handling */ sh = p->shape; new_count = sh->prop_count + len; if (new_count > sh->prop_size) { if (resize_properties(ctx, &p->shape, p, new_count)) return -1; } tab = p->u.array.u.values; for(i = 0; i < len; i++) { /* add_property cannot fail here but __JS_AtomFromUInt32(i) fails for i > INT32_MAX */ pr = add_property(ctx, p, __JS_AtomFromUInt32(i), JS_PROP_C_W_E); pr->u.value = *tab++; } js_free(ctx, p->u.array.u.values); p->u.array.count = 0; p->u.array.u.values = NULL; /* fail safe */ p->u.array.u1.size = 0; p->fast_array = 0; return 0; } static int delete_property(JSContext *ctx, JSObject *p, JSAtom atom) { JSShape *sh; JSShapeProperty *pr, *lpr, *prop; JSProperty *pr1; uint32_t lpr_idx; intptr_t h, h1; redo: sh = p->shape; h1 = atom & sh->prop_hash_mask; h = sh->prop_hash_end[-h1 - 1]; prop = get_shape_prop(sh); lpr = NULL; lpr_idx = 0; /* prevent warning */ while (h != 0) { pr = &prop[h - 1]; if (likely(pr->atom == atom)) { /* found ! */ if (!(pr->flags & JS_PROP_CONFIGURABLE)) return FALSE; /* realloc the shape if needed */ if (lpr) lpr_idx = lpr - get_shape_prop(sh); if (js_shape_prepare_update(ctx, p, &pr)) return -1; sh = p->shape; /* remove property */ if (lpr) { lpr = get_shape_prop(sh) + lpr_idx; lpr->hash_next = pr->hash_next; } else { sh->prop_hash_end[-h1 - 1] = pr->hash_next; } sh->deleted_prop_count++; /* free the entry */ pr1 = &p->prop[h - 1]; free_property(ctx->rt, pr1, pr->flags); JS_FreeAtom(ctx, pr->atom); /* put default values */ pr->flags = 0; pr->atom = JS_ATOM_NULL; pr1->u.value = JS_UNDEFINED; /* compact the properties if too many deleted properties */ if (sh->deleted_prop_count >= 8 && sh->deleted_prop_count >= ((unsigned)sh->prop_count / 2)) { compact_properties(ctx, p); } return TRUE; } lpr = pr; h = pr->hash_next; } if (p->is_exotic) { if (p->fast_array) { uint32_t idx; if (JS_AtomIsArrayIndex(ctx, &idx, atom) && idx < p->u.array.count) { if (p->class_id == JS_CLASS_ARRAY || p->class_id == JS_CLASS_ARGUMENTS) { /* Special case deleting the last element of a fast Array */ if (idx == p->u.array.count - 1) { JS_FreeValue(ctx, p->u.array.u.values[idx]); p->u.array.count = idx; return TRUE; } if (convert_fast_array_to_array(ctx, p)) return -1; goto redo; } else { return FALSE; /* not configurable */ } } } else { const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; if (em && em->delete_property) { return em->delete_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p), atom); } } } /* not found */ return TRUE; } static int call_setter(JSContext *ctx, JSObject *setter, JSValueConst this_obj, JSValue val, int flags) { JSValue ret, func; if (likely(setter)) { func = JS_MKPTR(JS_TAG_OBJECT, setter); /* Note: the field could be removed in the setter */ func = JS_DupValue(ctx, func); ret = JS_CallFree(ctx, func, this_obj, 1, (JSValueConst *)&val); JS_FreeValue(ctx, val); if (JS_IsException(ret)) return -1; JS_FreeValue(ctx, ret); return TRUE; } else { JS_FreeValue(ctx, val); if ((flags & JS_PROP_THROW) || ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) { JS_ThrowTypeError(ctx, "no setter for property"); return -1; } return FALSE; } } /* set the array length and remove the array elements if necessary. */ static int set_array_length(JSContext *ctx, JSObject *p, JSProperty *prop, JSValue val, int flags) { uint32_t len, idx, cur_len; int i, ret; ret = JS_ToArrayLengthFree(ctx, &len, val); if (ret) return -1; if (likely(p->fast_array)) { uint32_t old_len = p->u.array.count; if (len < old_len) { for(i = len; i < old_len; i++) { JS_FreeValue(ctx, p->u.array.u.values[i]); } p->u.array.count = len; } prop->u.value = JS_NewUint32(ctx, len); } else { /* Note: length is always a uint32 because the object is an array */ JS_ToUint32(ctx, &cur_len, prop->u.value); if (len < cur_len) { uint32_t d; JSShape *sh; JSShapeProperty *pr; d = cur_len - len; sh = p->shape; if (d <= sh->prop_count) { JSAtom atom; /* faster to iterate */ while (cur_len > len) { atom = JS_NewAtomUInt32(ctx, cur_len - 1); ret = delete_property(ctx, p, atom); JS_FreeAtom(ctx, atom); if (unlikely(!ret)) { /* unlikely case: property is not configurable */ break; } cur_len--; } } else { /* faster to iterate thru all the properties. Need two passes in case one of the property is not configurable */ cur_len = len; for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count; i++, pr++) { if (pr->atom != JS_ATOM_NULL && JS_AtomIsArrayIndex(ctx, &idx, pr->atom)) { if (idx >= cur_len && !(pr->flags & JS_PROP_CONFIGURABLE)) { cur_len = idx + 1; } } } for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count; i++, pr++) { if (pr->atom != JS_ATOM_NULL && JS_AtomIsArrayIndex(ctx, &idx, pr->atom)) { if (idx >= cur_len) { /* remove the property */ delete_property(ctx, p, pr->atom); /* WARNING: the shape may have been modified */ sh = p->shape; pr = get_shape_prop(sh) + i; } } } } } else { cur_len = len; } set_value(ctx, &p->prop[0].u.value, JS_NewUint32(ctx, cur_len)); if (unlikely(cur_len > len)) { return JS_ThrowTypeErrorOrFalse(ctx, flags, "not configurable"); } } return TRUE; } /* Preconditions: 'p' must be of class JS_CLASS_ARRAY, p->fast_array = TRUE and p->extensible = TRUE */ static int add_fast_array_element(JSContext *ctx, JSObject *p, JSValue val, int flags) { uint32_t new_len, array_len; /* extend the array by one */ /* XXX: convert to slow array if new_len > 2^31-1 elements */ new_len = p->u.array.count + 1; /* update the length if necessary. We assume that if the length is not an integer, then if it >= 2^31. */ if (likely(JS_VALUE_GET_TAG(p->prop[0].u.value) == JS_TAG_INT)) { array_len = JS_VALUE_GET_INT(p->prop[0].u.value); if (new_len > array_len) { if (unlikely(!(get_shape_prop(p->shape)->flags & JS_PROP_WRITABLE))) { JS_FreeValue(ctx, val); return JS_ThrowTypeErrorReadOnly(ctx, flags, JS_ATOM_length); } p->prop[0].u.value = JS_NewInt32(ctx, new_len); } } if (unlikely(new_len > p->u.array.u1.size)) { uint32_t new_size; size_t slack; JSValue *new_array_prop; /* XXX: potential arithmetic overflow */ new_size = max_int(new_len, p->u.array.u1.size * 3 / 2); new_array_prop = js_realloc2(ctx, p->u.array.u.values, sizeof(JSValue) * new_size, &slack); if (!new_array_prop) { JS_FreeValue(ctx, val); return -1; } new_size += slack / sizeof(*new_array_prop); p->u.array.u.values = new_array_prop; p->u.array.u1.size = new_size; } p->u.array.u.values[new_len - 1] = val; p->u.array.count = new_len; return TRUE; } static void js_free_desc(JSContext *ctx, JSPropertyDescriptor *desc) { JS_FreeValue(ctx, desc->getter); JS_FreeValue(ctx, desc->setter); JS_FreeValue(ctx, desc->value); } /* generic (and slower) version of JS_SetProperty() for Reflect.set() */ static int JS_SetPropertyGeneric(JSContext *ctx, JSObject *p, JSAtom prop, JSValue val, JSValueConst this_obj, int flags) { int ret; JSPropertyDescriptor desc; while (p != NULL) { if (p->is_exotic) { const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; if (em && em->set_property) { JSValue obj1; /* set_property can free the prototype */ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); ret = em->set_property(ctx, obj1, prop, val, this_obj, flags); JS_FreeValue(ctx, obj1); JS_FreeValue(ctx, val); return ret; } } ret = JS_GetOwnPropertyInternal(ctx, &desc, p, prop); if (ret < 0) return ret; if (ret) { if (desc.flags & JS_PROP_GETSET) { JSObject *setter; if (JS_IsUndefined(desc.setter)) setter = NULL; else setter = JS_VALUE_GET_OBJ(desc.setter); ret = call_setter(ctx, setter, this_obj, val, flags); JS_FreeValue(ctx, desc.getter); JS_FreeValue(ctx, desc.setter); return ret; } else { JS_FreeValue(ctx, desc.value); if (!(desc.flags & JS_PROP_WRITABLE)) { goto read_only_error; } } break; } p = p->shape->proto; } if (!JS_IsObject(this_obj)) return JS_ThrowTypeErrorOrFalse(ctx, flags, "receiver is not an object"); p = JS_VALUE_GET_OBJ(this_obj); /* modify the property in this_obj if it already exists */ ret = JS_GetOwnPropertyInternal(ctx, &desc, p, prop); if (ret < 0) return ret; if (ret) { if (desc.flags & JS_PROP_GETSET) { JS_FreeValue(ctx, desc.getter); JS_FreeValue(ctx, desc.setter); JS_FreeValue(ctx, val); return JS_ThrowTypeErrorOrFalse(ctx, flags, "setter is forbidden"); } else { JS_FreeValue(ctx, desc.value); if (!(desc.flags & JS_PROP_WRITABLE) || p->class_id == JS_CLASS_MODULE_NS) { read_only_error: JS_FreeValue(ctx, val); return JS_ThrowTypeErrorReadOnly(ctx, flags, prop); } } ret = JS_DefineProperty(ctx, this_obj, prop, val, JS_UNDEFINED, JS_UNDEFINED, JS_PROP_HAS_VALUE); JS_FreeValue(ctx, val); return ret; } ret = JS_CreateProperty(ctx, p, prop, val, JS_UNDEFINED, JS_UNDEFINED, flags | JS_PROP_HAS_VALUE | JS_PROP_HAS_ENUMERABLE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_CONFIGURABLE | JS_PROP_C_W_E); JS_FreeValue(ctx, val); return ret; } /* return -1 in case of exception or TRUE or FALSE. Warning: 'val' is freed by the function. 'flags' is a bitmask of JS_PROP_NO_ADD, JS_PROP_THROW or JS_PROP_THROW_STRICT. If JS_PROP_NO_ADD is set, the new property is not added and an error is raised. */ int JS_SetPropertyInternal(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSValue val, int flags) { JSObject *p, *p1; JSShapeProperty *prs; JSProperty *pr; uint32_t tag; JSPropertyDescriptor desc; int ret; #if 0 printf("JS_SetPropertyInternal: "); print_atom(ctx, prop); printf("\n"); #endif tag = JS_VALUE_GET_TAG(this_obj); if (unlikely(tag != JS_TAG_OBJECT)) { switch(tag) { case JS_TAG_NULL: JS_FreeValue(ctx, val); JS_ThrowTypeErrorAtom(ctx, "cannot set property '%s' of null", prop); return -1; case JS_TAG_UNDEFINED: JS_FreeValue(ctx, val); JS_ThrowTypeErrorAtom(ctx, "cannot set property '%s' of undefined", prop); return -1; default: /* even on a primitive type we can have setters on the prototype */ p = NULL; p1 = JS_VALUE_GET_OBJ(JS_GetPrototypePrimitive(ctx, this_obj)); goto prototype_lookup; } } p = JS_VALUE_GET_OBJ(this_obj); retry: prs = find_own_property(&pr, p, prop); if (prs) { if (likely((prs->flags & (JS_PROP_TMASK | JS_PROP_WRITABLE | JS_PROP_LENGTH)) == JS_PROP_WRITABLE)) { /* fast case */ set_value(ctx, &pr->u.value, val); return TRUE; } else if ((prs->flags & (JS_PROP_LENGTH | JS_PROP_WRITABLE)) == (JS_PROP_LENGTH | JS_PROP_WRITABLE)) { assert(p->class_id == JS_CLASS_ARRAY); assert(prop == JS_ATOM_length); return set_array_length(ctx, p, pr, val, flags); } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { return call_setter(ctx, pr->u.getset.setter, this_obj, val, flags); } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { /* JS_PROP_WRITABLE is always true for variable references, but they are write protected in module name spaces. */ if (p->class_id == JS_CLASS_MODULE_NS) goto read_only_prop; set_value(ctx, pr->u.var_ref->pvalue, val); return TRUE; } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { /* Instantiate property and retry (potentially useless) */ if (JS_AutoInitProperty(ctx, p, prop, pr)) { JS_FreeValue(ctx, val); return -1; } goto retry; } else { goto read_only_prop; } } p1 = p; for(;;) { if (p1->is_exotic) { if (p1->fast_array) { if (__JS_AtomIsTaggedInt(prop)) { uint32_t idx = __JS_AtomToUInt32(prop); if (idx < p1->u.array.count) { if (unlikely(p == p1)) return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), val, flags); else break; } else if (p1->class_id >= JS_CLASS_UINT8C_ARRAY && p1->class_id <= JS_CLASS_FLOAT64_ARRAY) { goto typed_array_oob; } } else if (p1->class_id >= JS_CLASS_UINT8C_ARRAY && p1->class_id <= JS_CLASS_FLOAT64_ARRAY) { ret = JS_AtomIsNumericIndex(ctx, prop); if (ret != 0) { if (ret < 0) { JS_FreeValue(ctx, val); return -1; } typed_array_oob: val = JS_ToNumberFree(ctx, val); JS_FreeValue(ctx, val); if (JS_IsException(val)) return -1; if (typed_array_is_detached(ctx, p1)) { JS_ThrowTypeErrorDetachedArrayBuffer(ctx); return -1; } return JS_ThrowTypeErrorOrFalse(ctx, flags, "out-of-bound numeric index"); } } } else { const JSClassExoticMethods *em = ctx->rt->class_array[p1->class_id].exotic; if (em) { JSValue obj1; if (em->set_property) { /* set_property can free the prototype */ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1)); ret = em->set_property(ctx, obj1, prop, val, this_obj, flags); JS_FreeValue(ctx, obj1); JS_FreeValue(ctx, val); return ret; } if (em->get_own_property) { /* get_own_property can free the prototype */ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1)); ret = em->get_own_property(ctx, &desc, obj1, prop); JS_FreeValue(ctx, obj1); if (ret < 0) { JS_FreeValue(ctx, val); return ret; } if (ret) { if (desc.flags & JS_PROP_GETSET) { JSObject *setter; if (JS_IsUndefined(desc.setter)) setter = NULL; else setter = JS_VALUE_GET_OBJ(desc.setter); ret = call_setter(ctx, setter, this_obj, val, flags); JS_FreeValue(ctx, desc.getter); JS_FreeValue(ctx, desc.setter); return ret; } else { JS_FreeValue(ctx, desc.value); if (!(desc.flags & JS_PROP_WRITABLE)) goto read_only_prop; if (likely(p == p1)) { ret = JS_DefineProperty(ctx, this_obj, prop, val, JS_UNDEFINED, JS_UNDEFINED, JS_PROP_HAS_VALUE); JS_FreeValue(ctx, val); return ret; } else { break; } } } } } } } p1 = p1->shape->proto; prototype_lookup: if (!p1) break; retry2: prs = find_own_property(&pr, p1, prop); if (prs) { if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { return call_setter(ctx, pr->u.getset.setter, this_obj, val, flags); } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { /* Instantiate property and retry (potentially useless) */ if (JS_AutoInitProperty(ctx, p1, prop, pr)) return -1; goto retry2; } else if (!(prs->flags & JS_PROP_WRITABLE)) { read_only_prop: JS_FreeValue(ctx, val); return JS_ThrowTypeErrorReadOnly(ctx, flags, prop); } } } if (unlikely(flags & JS_PROP_NO_ADD)) { JS_FreeValue(ctx, val); JS_ThrowReferenceErrorNotDefined(ctx, prop); return -1; } if (unlikely(!p)) { JS_FreeValue(ctx, val); return JS_ThrowTypeErrorOrFalse(ctx, flags, "not an object"); } if (unlikely(!p->extensible)) { JS_FreeValue(ctx, val); return JS_ThrowTypeErrorOrFalse(ctx, flags, "object is not extensible"); } if (p->is_exotic) { if (p->class_id == JS_CLASS_ARRAY && p->fast_array && __JS_AtomIsTaggedInt(prop)) { uint32_t idx = __JS_AtomToUInt32(prop); if (idx == p->u.array.count) { /* fast case */ return add_fast_array_element(ctx, p, val, flags); } else { goto generic_create_prop; } } else { generic_create_prop: ret = JS_CreateProperty(ctx, p, prop, val, JS_UNDEFINED, JS_UNDEFINED, flags | JS_PROP_HAS_VALUE | JS_PROP_HAS_ENUMERABLE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_CONFIGURABLE | JS_PROP_C_W_E); JS_FreeValue(ctx, val); return ret; } } pr = add_property(ctx, p, prop, JS_PROP_C_W_E); if (unlikely(!pr)) { JS_FreeValue(ctx, val); return -1; } pr->u.value = val; return TRUE; } /* flags can be JS_PROP_THROW or JS_PROP_THROW_STRICT */ static int JS_SetPropertyValue(JSContext *ctx, JSValueConst this_obj, JSValue prop, JSValue val, int flags) { if (likely(JS_VALUE_GET_TAG(this_obj) == JS_TAG_OBJECT && JS_VALUE_GET_TAG(prop) == JS_TAG_INT)) { JSObject *p; uint32_t idx; double d; int32_t v; /* fast path for array access */ p = JS_VALUE_GET_OBJ(this_obj); idx = JS_VALUE_GET_INT(prop); switch(p->class_id) { case JS_CLASS_ARRAY: if (unlikely(idx >= (uint32_t)p->u.array.count)) { JSObject *p1; JSShape *sh1; /* fast path to add an element to the array */ if (idx != (uint32_t)p->u.array.count || !p->fast_array || !p->extensible) goto slow_path; /* check if prototype chain has a numeric property */ p1 = p->shape->proto; while (p1 != NULL) { sh1 = p1->shape; if (p1->class_id == JS_CLASS_ARRAY) { if (unlikely(!p1->fast_array)) goto slow_path; } else if (p1->class_id == JS_CLASS_OBJECT) { if (unlikely(sh1->has_small_array_index)) goto slow_path; } else { goto slow_path; } p1 = sh1->proto; } /* add element */ return add_fast_array_element(ctx, p, val, flags); } set_value(ctx, &p->u.array.u.values[idx], val); break; case JS_CLASS_ARGUMENTS: if (unlikely(idx >= (uint32_t)p->u.array.count)) goto slow_path; set_value(ctx, &p->u.array.u.values[idx], val); break; case JS_CLASS_UINT8C_ARRAY: if (JS_ToUint8ClampFree(ctx, &v, val)) return -1; /* Note: the conversion can detach the typed array, so the array bound check must be done after */ if (unlikely(idx >= (uint32_t)p->u.array.count)) goto ta_out_of_bound; p->u.array.u.uint8_ptr[idx] = v; break; case JS_CLASS_INT8_ARRAY: case JS_CLASS_UINT8_ARRAY: if (JS_ToInt32Free(ctx, &v, val)) return -1; if (unlikely(idx >= (uint32_t)p->u.array.count)) goto ta_out_of_bound; p->u.array.u.uint8_ptr[idx] = v; break; case JS_CLASS_INT16_ARRAY: case JS_CLASS_UINT16_ARRAY: if (JS_ToInt32Free(ctx, &v, val)) return -1; if (unlikely(idx >= (uint32_t)p->u.array.count)) goto ta_out_of_bound; p->u.array.u.uint16_ptr[idx] = v; break; case JS_CLASS_INT32_ARRAY: case JS_CLASS_UINT32_ARRAY: if (JS_ToInt32Free(ctx, &v, val)) return -1; if (unlikely(idx >= (uint32_t)p->u.array.count)) goto ta_out_of_bound; p->u.array.u.uint32_ptr[idx] = v; break; #ifdef CONFIG_BIGNUM case JS_CLASS_BIG_INT64_ARRAY: case JS_CLASS_BIG_UINT64_ARRAY: /* XXX: need specific conversion function */ { int64_t v; if (JS_ToBigInt64Free(ctx, &v, val)) return -1; if (unlikely(idx >= (uint32_t)p->u.array.count)) goto ta_out_of_bound; p->u.array.u.uint64_ptr[idx] = v; } break; #endif case JS_CLASS_FLOAT32_ARRAY: if (JS_ToFloat64Free(ctx, &d, val)) return -1; if (unlikely(idx >= (uint32_t)p->u.array.count)) goto ta_out_of_bound; p->u.array.u.float_ptr[idx] = d; break; case JS_CLASS_FLOAT64_ARRAY: if (JS_ToFloat64Free(ctx, &d, val)) return -1; if (unlikely(idx >= (uint32_t)p->u.array.count)) { ta_out_of_bound: if (typed_array_is_detached(ctx, p)) { JS_ThrowTypeErrorDetachedArrayBuffer(ctx); return -1; } else { return JS_ThrowTypeErrorOrFalse(ctx, flags, "out-of-bound numeric index"); } } p->u.array.u.double_ptr[idx] = d; break; default: goto slow_path; } return TRUE; } else { JSAtom atom; int ret; slow_path: atom = JS_ValueToAtom(ctx, prop); JS_FreeValue(ctx, prop); if (unlikely(atom == JS_ATOM_NULL)) { JS_FreeValue(ctx, val); return -1; } ret = JS_SetPropertyInternal(ctx, this_obj, atom, val, flags); JS_FreeAtom(ctx, atom); return ret; } } int JS_SetPropertyUint32(JSContext *ctx, JSValueConst this_obj, uint32_t idx, JSValue val) { return JS_SetPropertyValue(ctx, this_obj, JS_NewUint32(ctx, idx), val, JS_PROP_THROW); } int JS_SetPropertyInt64(JSContext *ctx, JSValueConst this_obj, int64_t idx, JSValue val) { JSAtom prop; int res; if ((uint64_t)idx <= INT32_MAX) { /* fast path for fast arrays */ return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), val, JS_PROP_THROW); } prop = JS_NewAtomInt64(ctx, idx); if (prop == JS_ATOM_NULL) { JS_FreeValue(ctx, val); return -1; } res = JS_SetProperty(ctx, this_obj, prop, val); JS_FreeAtom(ctx, prop); return res; } int JS_SetPropertyStr(JSContext *ctx, JSValueConst this_obj, const char *prop, JSValue val) { JSAtom atom; int ret; atom = JS_NewAtom(ctx, prop); ret = JS_SetPropertyInternal(ctx, this_obj, atom, val, JS_PROP_THROW); JS_FreeAtom(ctx, atom); return ret; } /* compute the property flags. For each flag: (JS_PROP_HAS_x forces it, otherwise def_flags is used) Note: makes assumption about the bit pattern of the flags */ static int get_prop_flags(int flags, int def_flags) { int mask; mask = (flags >> JS_PROP_HAS_SHIFT) & JS_PROP_C_W_E; return (flags & mask) | (def_flags & ~mask); } static int JS_CreateProperty(JSContext *ctx, JSObject *p, JSAtom prop, JSValueConst val, JSValueConst getter, JSValueConst setter, int flags) { JSProperty *pr; int ret, prop_flags; /* add a new property or modify an existing exotic one */ if (p->is_exotic) { if (p->class_id == JS_CLASS_ARRAY) { uint32_t idx, len; if (p->fast_array) { if (__JS_AtomIsTaggedInt(prop)) { idx = __JS_AtomToUInt32(prop); if (idx == p->u.array.count) { if (!p->extensible) goto not_extensible; if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) goto convert_to_array; prop_flags = get_prop_flags(flags, 0); if (prop_flags != JS_PROP_C_W_E) goto convert_to_array; return add_fast_array_element(ctx, p, JS_DupValue(ctx, val), flags); } else { goto convert_to_array; } } else if (JS_AtomIsArrayIndex(ctx, &idx, prop)) { /* convert the fast array to normal array */ convert_to_array: if (convert_fast_array_to_array(ctx, p)) return -1; goto generic_array; } } else if (JS_AtomIsArrayIndex(ctx, &idx, prop)) { JSProperty *plen; JSShapeProperty *pslen; generic_array: /* update the length field */ plen = &p->prop[0]; JS_ToUint32(ctx, &len, plen->u.value); if ((idx + 1) > len) { pslen = get_shape_prop(p->shape); if (unlikely(!(pslen->flags & JS_PROP_WRITABLE))) return JS_ThrowTypeErrorReadOnly(ctx, flags, JS_ATOM_length); /* XXX: should update the length after defining the property */ len = idx + 1; set_value(ctx, &plen->u.value, JS_NewUint32(ctx, len)); } } } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY && p->class_id <= JS_CLASS_FLOAT64_ARRAY) { ret = JS_AtomIsNumericIndex(ctx, prop); if (ret != 0) { if (ret < 0) return -1; return JS_ThrowTypeErrorOrFalse(ctx, flags, "cannot create numeric index in typed array"); } } else if (!(flags & JS_PROP_NO_EXOTIC)) { const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic; if (em) { if (em->define_own_property) { return em->define_own_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p), prop, val, getter, setter, flags); } ret = JS_IsExtensible(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); if (ret < 0) return -1; if (!ret) goto not_extensible; } } } if (!p->extensible) { not_extensible: return JS_ThrowTypeErrorOrFalse(ctx, flags, "object is not extensible"); } if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { prop_flags = (flags & (JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE)) | JS_PROP_GETSET; } else { prop_flags = flags & JS_PROP_C_W_E; } pr = add_property(ctx, p, prop, prop_flags); if (unlikely(!pr)) return -1; if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { pr->u.getset.getter = NULL; if ((flags & JS_PROP_HAS_GET) && JS_IsFunction(ctx, getter)) { pr->u.getset.getter = JS_VALUE_GET_OBJ(JS_DupValue(ctx, getter)); } pr->u.getset.setter = NULL; if ((flags & JS_PROP_HAS_SET) && JS_IsFunction(ctx, setter)) { pr->u.getset.setter = JS_VALUE_GET_OBJ(JS_DupValue(ctx, setter)); } } else { if (flags & JS_PROP_HAS_VALUE) { pr->u.value = JS_DupValue(ctx, val); } else { pr->u.value = JS_UNDEFINED; } } return TRUE; } /* return FALSE if not OK */ static BOOL check_define_prop_flags(int prop_flags, int flags) { BOOL has_accessor, is_getset; if (!(prop_flags & JS_PROP_CONFIGURABLE)) { if ((flags & (JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE)) == (JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE)) { return FALSE; } if ((flags & JS_PROP_HAS_ENUMERABLE) && (flags & JS_PROP_ENUMERABLE) != (prop_flags & JS_PROP_ENUMERABLE)) return FALSE; } if (flags & (JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { if (!(prop_flags & JS_PROP_CONFIGURABLE)) { has_accessor = ((flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) != 0); is_getset = ((prop_flags & JS_PROP_TMASK) == JS_PROP_GETSET); if (has_accessor != is_getset) return FALSE; if (!has_accessor && !is_getset && !(prop_flags & JS_PROP_WRITABLE)) { /* not writable: cannot set the writable bit */ if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) == (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) return FALSE; } } } return TRUE; } /* ensure that the shape can be safely modified */ static int js_shape_prepare_update(JSContext *ctx, JSObject *p, JSShapeProperty **pprs) { JSShape *sh; uint32_t idx = 0; /* prevent warning */ sh = p->shape; if (sh->is_hashed) { if (sh->header.ref_count != 1) { if (pprs) idx = *pprs - get_shape_prop(sh); /* clone the shape (the resulting one is no longer hashed) */ sh = js_clone_shape(ctx, sh); if (!sh) return -1; js_free_shape(ctx->rt, p->shape); p->shape = sh; if (pprs) *pprs = get_shape_prop(sh) + idx; } else { js_shape_hash_unlink(ctx->rt, sh); sh->is_hashed = FALSE; } } return 0; } static int js_update_property_flags(JSContext *ctx, JSObject *p, JSShapeProperty **pprs, int flags) { if (flags != (*pprs)->flags) { if (js_shape_prepare_update(ctx, p, pprs)) return -1; (*pprs)->flags = flags; } return 0; } /* allowed flags: JS_PROP_CONFIGURABLE, JS_PROP_WRITABLE, JS_PROP_ENUMERABLE JS_PROP_HAS_GET, JS_PROP_HAS_SET, JS_PROP_HAS_VALUE, JS_PROP_HAS_CONFIGURABLE, JS_PROP_HAS_WRITABLE, JS_PROP_HAS_ENUMERABLE, JS_PROP_THROW, JS_PROP_NO_EXOTIC. If JS_PROP_THROW is set, return an exception instead of FALSE. if JS_PROP_NO_EXOTIC is set, do not call the exotic define_own_property callback. return -1 (exception), FALSE or TRUE. */ int JS_DefineProperty(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSValueConst val, JSValueConst getter, JSValueConst setter, int flags) { JSObject *p; JSShapeProperty *prs; JSProperty *pr; int mask, res; if (JS_VALUE_GET_TAG(this_obj) != JS_TAG_OBJECT) { JS_ThrowTypeErrorNotAnObject(ctx); return -1; } p = JS_VALUE_GET_OBJ(this_obj); redo_prop_update: prs = find_own_property(&pr, p, prop); if (prs) { /* property already exists */ if (!check_define_prop_flags(prs->flags, flags)) { not_configurable: return JS_ThrowTypeErrorOrFalse(ctx, flags, "property is not configurable"); } retry: if (flags & (JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { JSObject *new_getter, *new_setter; if (JS_IsFunction(ctx, getter)) { new_getter = JS_VALUE_GET_OBJ(getter); } else { new_getter = NULL; } if (JS_IsFunction(ctx, setter)) { new_setter = JS_VALUE_GET_OBJ(setter); } else { new_setter = NULL; } if ((prs->flags & JS_PROP_TMASK) != JS_PROP_GETSET) { if (js_shape_prepare_update(ctx, p, &prs)) return -1; /* convert to getset */ if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { free_var_ref(ctx->rt, pr->u.var_ref); } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { /* clear property and update */ if (js_shape_prepare_update(ctx, p, &prs)) return -1; js_autoinit_free(ctx->rt, pr); prs->flags &= ~JS_PROP_TMASK; pr->u.value = JS_UNDEFINED; goto retry; } else { JS_FreeValue(ctx, pr->u.value); } prs->flags = (prs->flags & (JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE)) | JS_PROP_GETSET; pr->u.getset.getter = NULL; pr->u.getset.setter = NULL; } else { if (!(prs->flags & JS_PROP_CONFIGURABLE)) { if ((flags & JS_PROP_HAS_GET) && new_getter != pr->u.getset.getter) { goto not_configurable; } if ((flags & JS_PROP_HAS_SET) && new_setter != pr->u.getset.setter) { goto not_configurable; } } } if (flags & JS_PROP_HAS_GET) { if (pr->u.getset.getter) JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter)); if (new_getter) JS_DupValue(ctx, getter); pr->u.getset.getter = new_getter; } if (flags & JS_PROP_HAS_SET) { if (pr->u.getset.setter) JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter)); if (new_setter) JS_DupValue(ctx, setter); pr->u.getset.setter = new_setter; } } else { if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { /* convert to data descriptor */ if (js_shape_prepare_update(ctx, p, &prs)) return -1; if (pr->u.getset.getter) JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter)); if (pr->u.getset.setter) JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter)); prs->flags &= ~(JS_PROP_TMASK | JS_PROP_WRITABLE); pr->u.value = JS_UNDEFINED; } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { /* Note: JS_PROP_VARREF is always writable */ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { /* clear property and update */ if (js_shape_prepare_update(ctx, p, &prs)) return -1; js_autoinit_free(ctx->rt, pr); prs->flags &= ~JS_PROP_TMASK; pr->u.value = JS_UNDEFINED; } else { if ((prs->flags & (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) == 0 && (flags & JS_PROP_HAS_VALUE) && !js_same_value(ctx, val, pr->u.value)) { goto not_configurable; } } if (prs->flags & JS_PROP_LENGTH) { if (flags & JS_PROP_HAS_VALUE) { res = set_array_length(ctx, p, pr, JS_DupValue(ctx, val), flags); } else { res = TRUE; } /* still need to reset the writable flag if needed. The JS_PROP_LENGTH is reset to have the correct read-only behavior in JS_SetProperty(). */ if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) == JS_PROP_HAS_WRITABLE) { prs = get_shape_prop(p->shape); if (js_update_property_flags(ctx, p, &prs, prs->flags & ~(JS_PROP_WRITABLE | JS_PROP_LENGTH))) return -1; } return res; } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { if (flags & JS_PROP_HAS_VALUE) { if (p->class_id == JS_CLASS_MODULE_NS) { /* JS_PROP_WRITABLE is always true for variable references, but they are write protected in module name spaces. */ if (!js_same_value(ctx, val, *pr->u.var_ref->pvalue)) goto not_configurable; } /* update the reference */ set_value(ctx, pr->u.var_ref->pvalue, JS_DupValue(ctx, val)); } /* if writable is set to false, no longer a reference (for mapped arguments) */ if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) == JS_PROP_HAS_WRITABLE) { JSValue val1; if (js_shape_prepare_update(ctx, p, &prs)) return -1; val1 = JS_DupValue(ctx, *pr->u.var_ref->pvalue); free_var_ref(ctx->rt, pr->u.var_ref); pr->u.value = val1; prs->flags &= ~(JS_PROP_TMASK | JS_PROP_WRITABLE); } } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { /* XXX: should never happen, type was reset above */ abort(); } else { if (flags & JS_PROP_HAS_VALUE) { JS_FreeValue(ctx, pr->u.value); pr->u.value = JS_DupValue(ctx, val); } if (flags & JS_PROP_HAS_WRITABLE) { if (js_update_property_flags(ctx, p, &prs, (prs->flags & ~JS_PROP_WRITABLE) | (flags & JS_PROP_WRITABLE))) return -1; } } } } mask = 0; if (flags & JS_PROP_HAS_CONFIGURABLE) mask |= JS_PROP_CONFIGURABLE; if (flags & JS_PROP_HAS_ENUMERABLE) mask |= JS_PROP_ENUMERABLE; if (js_update_property_flags(ctx, p, &prs, (prs->flags & ~mask) | (flags & mask))) return -1; return TRUE; } /* handle modification of fast array elements */ if (p->fast_array) { uint32_t idx; uint32_t prop_flags; if (p->class_id == JS_CLASS_ARRAY) { if (__JS_AtomIsTaggedInt(prop)) { idx = __JS_AtomToUInt32(prop); if (idx < p->u.array.count) { prop_flags = get_prop_flags(flags, JS_PROP_C_W_E); if (prop_flags != JS_PROP_C_W_E) goto convert_to_slow_array; if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) { convert_to_slow_array: if (convert_fast_array_to_array(ctx, p)) return -1; else goto redo_prop_update; } if (flags & JS_PROP_HAS_VALUE) { set_value(ctx, &p->u.array.u.values[idx], JS_DupValue(ctx, val)); } return TRUE; } } } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY && p->class_id <= JS_CLASS_FLOAT64_ARRAY) { JSValue num; int ret; if (!__JS_AtomIsTaggedInt(prop)) { /* slow path with to handle all numeric indexes */ num = JS_AtomIsNumericIndex1(ctx, prop); if (JS_IsUndefined(num)) goto typed_array_done; if (JS_IsException(num)) return -1; ret = JS_NumberIsInteger(ctx, num); if (ret < 0) { JS_FreeValue(ctx, num); return -1; } if (!ret) { JS_FreeValue(ctx, num); return JS_ThrowTypeErrorOrFalse(ctx, flags, "non integer index in typed array"); } ret = JS_NumberIsNegativeOrMinusZero(ctx, num); JS_FreeValue(ctx, num); if (ret) { return JS_ThrowTypeErrorOrFalse(ctx, flags, "negative index in typed array"); } if (!__JS_AtomIsTaggedInt(prop)) goto typed_array_oob; } idx = __JS_AtomToUInt32(prop); /* if the typed array is detached, p->u.array.count = 0 */ if (idx >= typed_array_get_length(ctx, p)) { typed_array_oob: return JS_ThrowTypeErrorOrFalse(ctx, flags, "out-of-bound index in typed array"); } prop_flags = get_prop_flags(flags, JS_PROP_ENUMERABLE | JS_PROP_WRITABLE); if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET) || prop_flags != (JS_PROP_ENUMERABLE | JS_PROP_WRITABLE)) { return JS_ThrowTypeErrorOrFalse(ctx, flags, "invalid descriptor flags"); } if (flags & JS_PROP_HAS_VALUE) { return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), JS_DupValue(ctx, val), flags); } return TRUE; typed_array_done: ; } } return JS_CreateProperty(ctx, p, prop, val, getter, setter, flags); } static int JS_DefineAutoInitProperty(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSAutoInitIDEnum id, void *opaque, int flags) { JSObject *p; JSProperty *pr; if (JS_VALUE_GET_TAG(this_obj) != JS_TAG_OBJECT) return FALSE; p = JS_VALUE_GET_OBJ(this_obj); if (find_own_property(&pr, p, prop)) { /* property already exists */ abort(); return FALSE; } /* Specialized CreateProperty */ pr = add_property(ctx, p, prop, (flags & JS_PROP_C_W_E) | JS_PROP_AUTOINIT); if (unlikely(!pr)) return -1; pr->u.init.realm_and_id = (uintptr_t)JS_DupContext(ctx); assert((pr->u.init.realm_and_id & 3) == 0); assert(id <= 3); pr->u.init.realm_and_id |= id; pr->u.init.opaque = opaque; return TRUE; } /* shortcut to add or redefine a new property value */ int JS_DefinePropertyValue(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSValue val, int flags) { int ret; ret = JS_DefineProperty(ctx, this_obj, prop, val, JS_UNDEFINED, JS_UNDEFINED, flags | JS_PROP_HAS_VALUE | JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_ENUMERABLE); JS_FreeValue(ctx, val); return ret; } int JS_DefinePropertyValueValue(JSContext *ctx, JSValueConst this_obj, JSValue prop, JSValue val, int flags) { JSAtom atom; int ret; atom = JS_ValueToAtom(ctx, prop); JS_FreeValue(ctx, prop); if (unlikely(atom == JS_ATOM_NULL)) { JS_FreeValue(ctx, val); return -1; } ret = JS_DefinePropertyValue(ctx, this_obj, atom, val, flags); JS_FreeAtom(ctx, atom); return ret; } int JS_DefinePropertyValueUint32(JSContext *ctx, JSValueConst this_obj, uint32_t idx, JSValue val, int flags) { return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewUint32(ctx, idx), val, flags); } int JS_DefinePropertyValueInt64(JSContext *ctx, JSValueConst this_obj, int64_t idx, JSValue val, int flags) { return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewInt64(ctx, idx), val, flags); } int JS_DefinePropertyValueStr(JSContext *ctx, JSValueConst this_obj, const char *prop, JSValue val, int flags) { JSAtom atom; int ret; atom = JS_NewAtom(ctx, prop); ret = JS_DefinePropertyValue(ctx, this_obj, atom, val, flags); JS_FreeAtom(ctx, atom); return ret; } /* shortcut to add getter & setter */ int JS_DefinePropertyGetSet(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSValue getter, JSValue setter, int flags) { int ret; ret = JS_DefineProperty(ctx, this_obj, prop, JS_UNDEFINED, getter, setter, flags | JS_PROP_HAS_GET | JS_PROP_HAS_SET | JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_ENUMERABLE); JS_FreeValue(ctx, getter); JS_FreeValue(ctx, setter); return ret; } static int JS_CreateDataPropertyUint32(JSContext *ctx, JSValueConst this_obj, int64_t idx, JSValue val, int flags) { return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewInt64(ctx, idx), val, flags | JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE | JS_PROP_WRITABLE); } /* return TRUE if 'obj' has a non empty 'name' string */ static BOOL js_object_has_name(JSContext *ctx, JSValueConst obj) { JSProperty *pr; JSShapeProperty *prs; JSValueConst val; JSString *p; prs = find_own_property(&pr, JS_VALUE_GET_OBJ(obj), JS_ATOM_name); if (!prs) return FALSE; if ((prs->flags & JS_PROP_TMASK) != JS_PROP_NORMAL) return TRUE; val = pr->u.value; if (JS_VALUE_GET_TAG(val) != JS_TAG_STRING) return TRUE; p = JS_VALUE_GET_STRING(val); return (p->len != 0); } static int JS_DefineObjectName(JSContext *ctx, JSValueConst obj, JSAtom name, int flags) { if (name != JS_ATOM_NULL && JS_IsObject(obj) && !js_object_has_name(ctx, obj) && JS_DefinePropertyValue(ctx, obj, JS_ATOM_name, JS_AtomToString(ctx, name), flags) < 0) { return -1; } return 0; } static int JS_DefineObjectNameComputed(JSContext *ctx, JSValueConst obj, JSValueConst str, int flags) { if (JS_IsObject(obj) && !js_object_has_name(ctx, obj)) { JSAtom prop; JSValue name_str; prop = JS_ValueToAtom(ctx, str); if (prop == JS_ATOM_NULL) return -1; name_str = js_get_function_name(ctx, prop); JS_FreeAtom(ctx, prop); if (JS_IsException(name_str)) return -1; if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_name, name_str, flags) < 0) return -1; } return 0; } #define DEFINE_GLOBAL_LEX_VAR (1 << 7) #define DEFINE_GLOBAL_FUNC_VAR (1 << 6) static JSValue JS_ThrowSyntaxErrorVarRedeclaration(JSContext *ctx, JSAtom prop) { return JS_ThrowSyntaxErrorAtom(ctx, "redeclaration of '%s'", prop); } /* flags is 0, DEFINE_GLOBAL_LEX_VAR or DEFINE_GLOBAL_FUNC_VAR */ /* XXX: could support exotic global object. */ static int JS_CheckDefineGlobalVar(JSContext *ctx, JSAtom prop, int flags) { JSObject *p; JSShapeProperty *prs; p = JS_VALUE_GET_OBJ(ctx->global_obj); prs = find_own_property1(p, prop); /* XXX: should handle JS_PROP_AUTOINIT */ if (flags & DEFINE_GLOBAL_LEX_VAR) { if (prs && !(prs->flags & JS_PROP_CONFIGURABLE)) goto fail_redeclaration; } else { if (!prs && !p->extensible) goto define_error; if (flags & DEFINE_GLOBAL_FUNC_VAR) { if (prs) { if (!(prs->flags & JS_PROP_CONFIGURABLE) && ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET || ((prs->flags & (JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)) != (JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)))) { define_error: JS_ThrowTypeErrorAtom(ctx, "cannot define variable '%s'", prop); return -1; } } } } /* check if there already is a lexical declaration */ p = JS_VALUE_GET_OBJ(ctx->global_var_obj); prs = find_own_property1(p, prop); if (prs) { fail_redeclaration: JS_ThrowSyntaxErrorVarRedeclaration(ctx, prop); return -1; } return 0; } /* def_flags is (0, DEFINE_GLOBAL_LEX_VAR) | JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE */ /* XXX: could support exotic global object. */ static int JS_DefineGlobalVar(JSContext *ctx, JSAtom prop, int def_flags) { JSObject *p; JSShapeProperty *prs; JSProperty *pr; JSValue val; int flags; if (def_flags & DEFINE_GLOBAL_LEX_VAR) { p = JS_VALUE_GET_OBJ(ctx->global_var_obj); flags = JS_PROP_ENUMERABLE | (def_flags & JS_PROP_WRITABLE) | JS_PROP_CONFIGURABLE; val = JS_UNINITIALIZED; } else { p = JS_VALUE_GET_OBJ(ctx->global_obj); flags = JS_PROP_ENUMERABLE | JS_PROP_WRITABLE | (def_flags & JS_PROP_CONFIGURABLE); val = JS_UNDEFINED; } prs = find_own_property1(p, prop); if (prs) return 0; if (!p->extensible) return 0; pr = add_property(ctx, p, prop, flags); if (unlikely(!pr)) return -1; pr->u.value = val; return 0; } /* 'def_flags' is 0 or JS_PROP_CONFIGURABLE. */ /* XXX: could support exotic global object. */ static int JS_DefineGlobalFunction(JSContext *ctx, JSAtom prop, JSValueConst func, int def_flags) { JSObject *p; JSShapeProperty *prs; int flags; p = JS_VALUE_GET_OBJ(ctx->global_obj); prs = find_own_property1(p, prop); flags = JS_PROP_HAS_VALUE | JS_PROP_THROW; if (!prs || (prs->flags & JS_PROP_CONFIGURABLE)) { flags |= JS_PROP_ENUMERABLE | JS_PROP_WRITABLE | def_flags | JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_ENUMERABLE; } if (JS_DefineProperty(ctx, ctx->global_obj, prop, func, JS_UNDEFINED, JS_UNDEFINED, flags) < 0) return -1; return 0; } static JSValue JS_GetGlobalVar(JSContext *ctx, JSAtom prop, BOOL throw_ref_error) { JSObject *p; JSShapeProperty *prs; JSProperty *pr; /* no exotic behavior is possible in global_var_obj */ p = JS_VALUE_GET_OBJ(ctx->global_var_obj); prs = find_own_property(&pr, p, prop); if (prs) { /* XXX: should handle JS_PROP_TMASK properties */ if (unlikely(JS_IsUninitialized(pr->u.value))) return JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); return JS_DupValue(ctx, pr->u.value); } return JS_GetPropertyInternal(ctx, ctx->global_obj, prop, ctx->global_obj, throw_ref_error); } /* construct a reference to a global variable */ static int JS_GetGlobalVarRef(JSContext *ctx, JSAtom prop, JSValue *sp) { JSObject *p; JSShapeProperty *prs; JSProperty *pr; /* no exotic behavior is possible in global_var_obj */ p = JS_VALUE_GET_OBJ(ctx->global_var_obj); prs = find_own_property(&pr, p, prop); if (prs) { /* XXX: should handle JS_PROP_AUTOINIT properties? */ /* XXX: conformance: do these tests in OP_put_var_ref/OP_get_var_ref ? */ if (unlikely(JS_IsUninitialized(pr->u.value))) { JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); return -1; } if (unlikely(!(prs->flags & JS_PROP_WRITABLE))) { return JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, prop); } sp[0] = JS_DupValue(ctx, ctx->global_var_obj); } else { int ret; ret = JS_HasProperty(ctx, ctx->global_obj, prop); if (ret < 0) return -1; if (ret) { sp[0] = JS_DupValue(ctx, ctx->global_obj); } else { sp[0] = JS_UNDEFINED; } } sp[1] = JS_AtomToValue(ctx, prop); return 0; } /* use for strict variable access: test if the variable exists */ static int JS_CheckGlobalVar(JSContext *ctx, JSAtom prop) { JSObject *p; JSShapeProperty *prs; int ret; /* no exotic behavior is possible in global_var_obj */ p = JS_VALUE_GET_OBJ(ctx->global_var_obj); prs = find_own_property1(p, prop); if (prs) { ret = TRUE; } else { ret = JS_HasProperty(ctx, ctx->global_obj, prop); if (ret < 0) return -1; } return ret; } /* flag = 0: normal variable write flag = 1: initialize lexical variable flag = 2: normal variable write, strict check was done before */ static int JS_SetGlobalVar(JSContext *ctx, JSAtom prop, JSValue val, int flag) { JSObject *p; JSShapeProperty *prs; JSProperty *pr; int flags; /* no exotic behavior is possible in global_var_obj */ p = JS_VALUE_GET_OBJ(ctx->global_var_obj); prs = find_own_property(&pr, p, prop); if (prs) { /* XXX: should handle JS_PROP_AUTOINIT properties? */ if (flag != 1) { if (unlikely(JS_IsUninitialized(pr->u.value))) { JS_FreeValue(ctx, val); JS_ThrowReferenceErrorUninitialized(ctx, prs->atom); return -1; } if (unlikely(!(prs->flags & JS_PROP_WRITABLE))) { JS_FreeValue(ctx, val); return JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, prop); } } set_value(ctx, &pr->u.value, val); return 0; } flags = JS_PROP_THROW_STRICT; if (flag != 2 && is_strict_mode(ctx)) flags |= JS_PROP_NO_ADD; return JS_SetPropertyInternal(ctx, ctx->global_obj, prop, val, flags); } /* return -1, FALSE or TRUE. return FALSE if not configurable or invalid object. return -1 in case of exception. flags can be 0, JS_PROP_THROW or JS_PROP_THROW_STRICT */ int JS_DeleteProperty(JSContext *ctx, JSValueConst obj, JSAtom prop, int flags) { JSValue obj1; JSObject *p; int res; obj1 = JS_ToObject(ctx, obj); if (JS_IsException(obj1)) return -1; p = JS_VALUE_GET_OBJ(obj1); res = delete_property(ctx, p, prop); JS_FreeValue(ctx, obj1); if (res != FALSE) return res; if ((flags & JS_PROP_THROW) || ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) { JS_ThrowTypeError(ctx, "could not delete property"); return -1; } return FALSE; } int JS_DeletePropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx, int flags) { JSAtom prop; int res; if ((uint64_t)idx <= JS_ATOM_MAX_INT) { /* fast path for fast arrays */ return JS_DeleteProperty(ctx, obj, __JS_AtomFromUInt32(idx), flags); } prop = JS_NewAtomInt64(ctx, idx); if (prop == JS_ATOM_NULL) return -1; res = JS_DeleteProperty(ctx, obj, prop, flags); JS_FreeAtom(ctx, prop); return res; } BOOL JS_IsFunction(JSContext *ctx, JSValueConst val) { JSObject *p; if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) return FALSE; p = JS_VALUE_GET_OBJ(val); switch(p->class_id) { case JS_CLASS_BYTECODE_FUNCTION: return TRUE; case JS_CLASS_PROXY: return p->u.proxy_data->is_func; default: return (ctx->rt->class_array[p->class_id].call != NULL); } } BOOL JS_IsCFunction(JSContext *ctx, JSValueConst val, JSCFunction *func, int magic) { JSObject *p; if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) return FALSE; p = JS_VALUE_GET_OBJ(val); if (p->class_id == JS_CLASS_C_FUNCTION) return (p->u.cfunc.c_function.generic == func && p->u.cfunc.magic == magic); else return FALSE; } BOOL JS_IsConstructor(JSContext *ctx, JSValueConst val) { JSObject *p; if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) return FALSE; p = JS_VALUE_GET_OBJ(val); return p->is_constructor; } BOOL JS_SetConstructorBit(JSContext *ctx, JSValueConst func_obj, BOOL val) { JSObject *p; if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT) return FALSE; p = JS_VALUE_GET_OBJ(func_obj); p->is_constructor = val; return TRUE; } BOOL JS_IsError(JSContext *ctx, JSValueConst val) { JSObject *p; if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) return FALSE; p = JS_VALUE_GET_OBJ(val); return (p->class_id == JS_CLASS_ERROR); } /* used to avoid catching interrupt exceptions */ BOOL JS_IsUncatchableError(JSContext *ctx, JSValueConst val) { JSObject *p; if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) return FALSE; p = JS_VALUE_GET_OBJ(val); return p->class_id == JS_CLASS_ERROR && p->is_uncatchable_error; } void JS_SetUncatchableError(JSContext *ctx, JSValueConst val, BOOL flag) { JSObject *p; if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) return; p = JS_VALUE_GET_OBJ(val); if (p->class_id == JS_CLASS_ERROR) p->is_uncatchable_error = flag; } void JS_ResetUncatchableError(JSContext *ctx) { JS_SetUncatchableError(ctx, ctx->rt->current_exception, FALSE); } void JS_SetOpaque(JSValue obj, void *opaque) { JSObject *p; if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { p = JS_VALUE_GET_OBJ(obj); p->u.opaque = opaque; } } /* return NULL if not an object of class class_id */ void *JS_GetOpaque(JSValueConst obj, JSClassID class_id) { JSObject *p; if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) return NULL; p = JS_VALUE_GET_OBJ(obj); if (p->class_id != class_id) return NULL; return p->u.opaque; } void *JS_GetOpaque2(JSContext *ctx, JSValueConst obj, JSClassID class_id) { void *p = JS_GetOpaque(obj, class_id); if (unlikely(!p)) { JS_ThrowTypeErrorInvalidClass(ctx, class_id); } return p; } #define HINT_STRING 0 #define HINT_NUMBER 1 #define HINT_NONE 2 /* don't try Symbol.toPrimitive */ #define HINT_FORCE_ORDINARY (1 << 4) static JSValue JS_ToPrimitiveFree(JSContext *ctx, JSValue val, int hint) { int i; BOOL force_ordinary; JSAtom method_name; JSValue method, ret; if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) return val; force_ordinary = hint & HINT_FORCE_ORDINARY; hint &= ~HINT_FORCE_ORDINARY; if (!force_ordinary) { method = JS_GetProperty(ctx, val, JS_ATOM_Symbol_toPrimitive); if (JS_IsException(method)) goto exception; /* ECMA says *If exoticToPrim is not undefined* but tests in test262 use null as a non callable converter */ if (!JS_IsUndefined(method) && !JS_IsNull(method)) { JSAtom atom; JSValue arg; switch(hint) { case HINT_STRING: atom = JS_ATOM_string; break; case HINT_NUMBER: atom = JS_ATOM_number; break; default: case HINT_NONE: atom = JS_ATOM_default; break; } arg = JS_AtomToString(ctx, atom); ret = JS_CallFree(ctx, method, val, 1, (JSValueConst *)&arg); JS_FreeValue(ctx, arg); if (JS_IsException(ret)) goto exception; JS_FreeValue(ctx, val); if (JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT) return ret; JS_FreeValue(ctx, ret); return JS_ThrowTypeError(ctx, "toPrimitive"); } } if (hint != HINT_STRING) hint = HINT_NUMBER; for(i = 0; i < 2; i++) { if ((i ^ hint) == 0) { method_name = JS_ATOM_toString; } else { method_name = JS_ATOM_valueOf; } method = JS_GetProperty(ctx, val, method_name); if (JS_IsException(method)) goto exception; if (JS_IsFunction(ctx, method)) { ret = JS_CallFree(ctx, method, val, 0, NULL); if (JS_IsException(ret)) goto exception; if (JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT) { JS_FreeValue(ctx, val); return ret; } JS_FreeValue(ctx, ret); } else { JS_FreeValue(ctx, method); } } JS_ThrowTypeError(ctx, "toPrimitive"); exception: JS_FreeValue(ctx, val); return JS_EXCEPTION; } static JSValue JS_ToPrimitive(JSContext *ctx, JSValueConst val, int hint) { return JS_ToPrimitiveFree(ctx, JS_DupValue(ctx, val), hint); } static int JS_ToBoolFree(JSContext *ctx, JSValue val) { uint32_t tag = JS_VALUE_GET_TAG(val); switch(tag) { case JS_TAG_INT: return JS_VALUE_GET_INT(val) != 0; case JS_TAG_BOOL: case JS_TAG_NULL: case JS_TAG_UNDEFINED: return JS_VALUE_GET_INT(val); case JS_TAG_EXCEPTION: return -1; case JS_TAG_STRING: { BOOL ret = JS_VALUE_GET_STRING(val)->len != 0; JS_FreeValue(ctx, val); return ret; } #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: case JS_TAG_BIG_FLOAT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); BOOL ret; ret = p->num.expn != BF_EXP_ZERO && p->num.expn != BF_EXP_NAN; JS_FreeValue(ctx, val); return ret; } case JS_TAG_BIG_DECIMAL: { JSBigDecimal *p = JS_VALUE_GET_PTR(val); BOOL ret; ret = p->num.expn != BF_EXP_ZERO && p->num.expn != BF_EXP_NAN; JS_FreeValue(ctx, val); return ret; } #endif default: if (JS_TAG_IS_FLOAT64(tag)) { double d = JS_VALUE_GET_FLOAT64(val); return !isnan(d) && d != 0; } else { JS_FreeValue(ctx, val); return TRUE; } } } int JS_ToBool(JSContext *ctx, JSValueConst val) { return JS_ToBoolFree(ctx, JS_DupValue(ctx, val)); } static int skip_spaces(const char *pc) { const uint8_t *p, *p_next, *p_start; uint32_t c; p = p_start = (const uint8_t *)pc; for (;;) { c = *p; if (c < 128) { if (!((c >= 0x09 && c <= 0x0d) || (c == 0x20))) break; p++; } else { c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next); if (!lre_is_space(c)) break; p = p_next; } } return p - p_start; } static inline int to_digit(int c) { if (c >= '0' && c <= '9') return c - '0'; else if (c >= 'A' && c <= 'Z') return c - 'A' + 10; else if (c >= 'a' && c <= 'z') return c - 'a' + 10; else return 36; } /* XXX: remove */ static double js_strtod(const char *p, int radix, BOOL is_float) { double d; int c; if (!is_float || radix != 10) { uint64_t n_max, n; int int_exp, is_neg; is_neg = 0; if (*p == '-') { is_neg = 1; p++; } /* skip leading zeros */ while (*p == '0') p++; n = 0; if (radix == 10) n_max = ((uint64_t)-1 - 9) / 10; /* most common case */ else n_max = ((uint64_t)-1 - (radix - 1)) / radix; /* XXX: could be more precise */ int_exp = 0; while (*p != '\0') { c = to_digit((uint8_t)*p); if (c >= radix) break; if (n <= n_max) { n = n * radix + c; } else { int_exp++; } p++; } d = n; if (int_exp != 0) { d *= pow(radix, int_exp); } if (is_neg) d = -d; } else { d = strtod(p, NULL); } return d; } #define ATOD_INT_ONLY (1 << 0) /* accept Oo and Ob prefixes in addition to 0x prefix if radix = 0 */ #define ATOD_ACCEPT_BIN_OCT (1 << 2) /* accept O prefix as octal if radix == 0 and properly formed (Annex B) */ #define ATOD_ACCEPT_LEGACY_OCTAL (1 << 4) /* accept _ between digits as a digit separator */ #define ATOD_ACCEPT_UNDERSCORES (1 << 5) /* allow a suffix to override the type */ #define ATOD_ACCEPT_SUFFIX (1 << 6) /* default type */ #define ATOD_TYPE_MASK (3 << 7) #define ATOD_TYPE_FLOAT64 (0 << 7) #define ATOD_TYPE_BIG_INT (1 << 7) #define ATOD_TYPE_BIG_FLOAT (2 << 7) #define ATOD_TYPE_BIG_DECIMAL (3 << 7) /* assume bigint mode: floats are parsed as integers if no decimal point nor exponent */ #define ATOD_MODE_BIGINT (1 << 9) /* accept -0x1 */ #define ATOD_ACCEPT_PREFIX_AFTER_SIGN (1 << 10) #ifdef CONFIG_BIGNUM static JSValue js_string_to_bigint(JSContext *ctx, const char *buf, int radix, int flags, slimb_t *pexponent) { bf_t a_s, *a = &a_s; int ret; JSValue val; val = JS_NewBigInt(ctx); if (JS_IsException(val)) return val; a = JS_GetBigInt(val); ret = bf_atof(a, buf, NULL, radix, BF_PREC_INF, BF_RNDZ); if (ret & BF_ST_MEM_ERROR) { JS_FreeValue(ctx, val); return JS_ThrowOutOfMemory(ctx); } val = JS_CompactBigInt1(ctx, val, (flags & ATOD_MODE_BIGINT) != 0); return val; } static JSValue js_string_to_bigfloat(JSContext *ctx, const char *buf, int radix, int flags, slimb_t *pexponent) { bf_t *a; int ret; JSValue val; val = JS_NewBigFloat(ctx); if (JS_IsException(val)) return val; a = JS_GetBigFloat(val); if (flags & ATOD_ACCEPT_SUFFIX) { /* return the exponent to get infinite precision */ ret = bf_atof2(a, pexponent, buf, NULL, radix, BF_PREC_INF, BF_RNDZ | BF_ATOF_EXPONENT); } else { ret = bf_atof(a, buf, NULL, radix, ctx->fp_env.prec, ctx->fp_env.flags); } if (ret & BF_ST_MEM_ERROR) { JS_FreeValue(ctx, val); return JS_ThrowOutOfMemory(ctx); } return val; } static JSValue js_string_to_bigdecimal(JSContext *ctx, const char *buf, int radix, int flags, slimb_t *pexponent) { bfdec_t *a; int ret; JSValue val; val = JS_NewBigDecimal(ctx); if (JS_IsException(val)) return val; a = JS_GetBigDecimal(val); ret = bfdec_atof(a, buf, NULL, BF_PREC_INF, BF_RNDZ | BF_ATOF_NO_NAN_INF); if (ret & BF_ST_MEM_ERROR) { JS_FreeValue(ctx, val); return JS_ThrowOutOfMemory(ctx); } return val; } #endif /* return an exception in case of memory error. Return JS_NAN if invalid syntax */ #ifdef CONFIG_BIGNUM static JSValue js_atof2(JSContext *ctx, const char *str, const char **pp, int radix, int flags, slimb_t *pexponent) #else static JSValue js_atof(JSContext *ctx, const char *str, const char **pp, int radix, int flags) #endif { const char *p, *p_start; int sep, is_neg; BOOL is_float, has_legacy_octal; int atod_type = flags & ATOD_TYPE_MASK; char buf1[64], *buf; int i, j, len; BOOL buf_allocated = FALSE; JSValue val; /* optional separator between digits */ sep = (flags & ATOD_ACCEPT_UNDERSCORES) ? '_' : 256; has_legacy_octal = FALSE; p = str; p_start = p; is_neg = 0; if (p[0] == '+') { p++; p_start++; if (!(flags & ATOD_ACCEPT_PREFIX_AFTER_SIGN)) goto no_radix_prefix; } else if (p[0] == '-') { p++; p_start++; is_neg = 1; if (!(flags & ATOD_ACCEPT_PREFIX_AFTER_SIGN)) goto no_radix_prefix; } if (p[0] == '0') { if ((p[1] == 'x' || p[1] == 'X') && (radix == 0 || radix == 16)) { p += 2; radix = 16; } else if ((p[1] == 'o' || p[1] == 'O') && radix == 0 && (flags & ATOD_ACCEPT_BIN_OCT)) { p += 2; radix = 8; } else if ((p[1] == 'b' || p[1] == 'B') && radix == 0 && (flags & ATOD_ACCEPT_BIN_OCT)) { p += 2; radix = 2; } else if ((p[1] >= '0' && p[1] <= '9') && radix == 0 && (flags & ATOD_ACCEPT_LEGACY_OCTAL)) { int i; has_legacy_octal = TRUE; sep = 256; for (i = 1; (p[i] >= '0' && p[i] <= '7'); i++) continue; if (p[i] == '8' || p[i] == '9') goto no_prefix; p += 1; radix = 8; } else { goto no_prefix; } /* there must be a digit after the prefix */ if (to_digit((uint8_t)*p) >= radix) goto fail; no_prefix: ; } else { no_radix_prefix: if (!(flags & ATOD_INT_ONLY) && (atod_type == ATOD_TYPE_FLOAT64 || atod_type == ATOD_TYPE_BIG_FLOAT) && strstart(p, "Infinity", &p)) { #ifdef CONFIG_BIGNUM if (atod_type == ATOD_TYPE_BIG_FLOAT) { bf_t *a; val = JS_NewBigFloat(ctx); if (JS_IsException(val)) goto done; a = JS_GetBigFloat(val); bf_set_inf(a, is_neg); } else #endif { double d = 1.0 / 0.0; if (is_neg) d = -d; val = JS_NewFloat64(ctx, d); } goto done; } } if (radix == 0) radix = 10; is_float = FALSE; p_start = p; while (to_digit((uint8_t)*p) < radix || (*p == sep && (radix != 10 || p != p_start + 1 || p[-1] != '0') && to_digit((uint8_t)p[1]) < radix)) { p++; } if (!(flags & ATOD_INT_ONLY)) { if (*p == '.' && (p > p_start || to_digit((uint8_t)p[1]) < radix)) { is_float = TRUE; p++; if (*p == sep) goto fail; while (to_digit((uint8_t)*p) < radix || (*p == sep && to_digit((uint8_t)p[1]) < radix)) p++; } if (p > p_start && (((*p == 'e' || *p == 'E') && radix == 10) || ((*p == 'p' || *p == 'P') && (radix == 2 || radix == 8 || radix == 16)))) { const char *p1 = p + 1; is_float = TRUE; if (*p1 == '+') { p1++; } else if (*p1 == '-') { p1++; } if (is_digit((uint8_t)*p1)) { p = p1 + 1; while (is_digit((uint8_t)*p) || (*p == sep && is_digit((uint8_t)p[1]))) p++; } } } if (p == p_start) goto fail; buf = buf1; buf_allocated = FALSE; len = p - p_start; if (unlikely((len + 2) > sizeof(buf1))) { buf = js_malloc_rt(ctx->rt, len + 2); /* no exception raised */ if (!buf) goto mem_error; buf_allocated = TRUE; } /* remove the separators and the radix prefixes */ j = 0; if (is_neg) buf[j++] = '-'; for (i = 0; i < len; i++) { if (p_start[i] != '_') buf[j++] = p_start[i]; } buf[j] = '\0'; #ifdef CONFIG_BIGNUM if (flags & ATOD_ACCEPT_SUFFIX) { if (*p == 'n') { p++; atod_type = ATOD_TYPE_BIG_INT; } else if (*p == 'l') { p++; atod_type = ATOD_TYPE_BIG_FLOAT; } else if (*p == 'm') { p++; atod_type = ATOD_TYPE_BIG_DECIMAL; } else { if (flags & ATOD_MODE_BIGINT) { if (!is_float) atod_type = ATOD_TYPE_BIG_INT; if (has_legacy_octal) goto fail; } else { if (is_float && radix != 10) goto fail; } } } else { if (atod_type == ATOD_TYPE_FLOAT64) { if (flags & ATOD_MODE_BIGINT) { if (!is_float) atod_type = ATOD_TYPE_BIG_INT; if (has_legacy_octal) goto fail; } else { if (is_float && radix != 10) goto fail; } } } switch(atod_type) { case ATOD_TYPE_FLOAT64: { double d; d = js_strtod(buf, radix, is_float); /* return int or float64 */ val = JS_NewFloat64(ctx, d); } break; case ATOD_TYPE_BIG_INT: if (has_legacy_octal || is_float) goto fail; val = ctx->rt->bigint_ops.from_string(ctx, buf, radix, flags, NULL); break; case ATOD_TYPE_BIG_FLOAT: if (has_legacy_octal) goto fail; val = ctx->rt->bigfloat_ops.from_string(ctx, buf, radix, flags, pexponent); break; case ATOD_TYPE_BIG_DECIMAL: if (radix != 10) goto fail; val = ctx->rt->bigdecimal_ops.from_string(ctx, buf, radix, flags, NULL); break; default: abort(); } #else { double d; (void)has_legacy_octal; if (is_float && radix != 10) goto fail; d = js_strtod(buf, radix, is_float); val = JS_NewFloat64(ctx, d); } #endif done: if (buf_allocated) js_free_rt(ctx->rt, buf); if (pp) *pp = p; return val; fail: val = JS_NAN; goto done; mem_error: val = JS_ThrowOutOfMemory(ctx); goto done; } #ifdef CONFIG_BIGNUM static JSValue js_atof(JSContext *ctx, const char *str, const char **pp, int radix, int flags) { return js_atof2(ctx, str, pp, radix, flags, NULL); } #endif typedef enum JSToNumberHintEnum { TON_FLAG_NUMBER, TON_FLAG_NUMERIC, } JSToNumberHintEnum; static JSValue JS_ToNumberHintFree(JSContext *ctx, JSValue val, JSToNumberHintEnum flag) { uint32_t tag; JSValue ret; redo: tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { #ifdef CONFIG_BIGNUM case JS_TAG_BIG_DECIMAL: if (flag != TON_FLAG_NUMERIC) { JS_FreeValue(ctx, val); return JS_ThrowTypeError(ctx, "cannot convert bigdecimal to number"); } ret = val; break; case JS_TAG_BIG_INT: if (flag != TON_FLAG_NUMERIC) { JS_FreeValue(ctx, val); return JS_ThrowTypeError(ctx, "cannot convert bigint to number"); } ret = val; break; case JS_TAG_BIG_FLOAT: if (flag != TON_FLAG_NUMERIC) { JS_FreeValue(ctx, val); return JS_ThrowTypeError(ctx, "cannot convert bigfloat to number"); } ret = val; break; #endif case JS_TAG_FLOAT64: case JS_TAG_INT: case JS_TAG_EXCEPTION: ret = val; break; case JS_TAG_BOOL: case JS_TAG_NULL: ret = JS_NewInt32(ctx, JS_VALUE_GET_INT(val)); break; case JS_TAG_UNDEFINED: ret = JS_NAN; break; case JS_TAG_OBJECT: val = JS_ToPrimitiveFree(ctx, val, HINT_NUMBER); if (JS_IsException(val)) return JS_EXCEPTION; goto redo; case JS_TAG_STRING: { const char *str; const char *p; size_t len; str = JS_ToCStringLen(ctx, &len, val); JS_FreeValue(ctx, val); if (!str) return JS_EXCEPTION; p = str; p += skip_spaces(p); if ((p - str) == len) { ret = JS_NewInt32(ctx, 0); } else { int flags = ATOD_ACCEPT_BIN_OCT; ret = js_atof(ctx, p, &p, 0, flags); if (!JS_IsException(ret)) { p += skip_spaces(p); if ((p - str) != len) { JS_FreeValue(ctx, ret); ret = JS_NAN; } } } JS_FreeCString(ctx, str); } break; case JS_TAG_SYMBOL: JS_FreeValue(ctx, val); return JS_ThrowTypeError(ctx, "cannot convert symbol to number"); default: JS_FreeValue(ctx, val); ret = JS_NAN; break; } return ret; } static JSValue JS_ToNumberFree(JSContext *ctx, JSValue val) { return JS_ToNumberHintFree(ctx, val, TON_FLAG_NUMBER); } static JSValue JS_ToNumericFree(JSContext *ctx, JSValue val) { return JS_ToNumberHintFree(ctx, val, TON_FLAG_NUMERIC); } static JSValue JS_ToNumeric(JSContext *ctx, JSValueConst val) { return JS_ToNumericFree(ctx, JS_DupValue(ctx, val)); } static __exception int __JS_ToFloat64Free(JSContext *ctx, double *pres, JSValue val) { double d; uint32_t tag; val = JS_ToNumberFree(ctx, val); if (JS_IsException(val)) { *pres = JS_FLOAT64_NAN; return -1; } tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_INT: d = JS_VALUE_GET_INT(val); break; case JS_TAG_FLOAT64: d = JS_VALUE_GET_FLOAT64(val); break; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: case JS_TAG_BIG_FLOAT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); /* XXX: there can be a double rounding issue with some primitives (such as JS_ToUint8ClampFree()), but it is not critical to fix it. */ bf_get_float64(&p->num, &d, BF_RNDN); JS_FreeValue(ctx, val); } break; #endif default: abort(); } *pres = d; return 0; } static inline int JS_ToFloat64Free(JSContext *ctx, double *pres, JSValue val) { uint32_t tag; tag = JS_VALUE_GET_TAG(val); if (tag <= JS_TAG_NULL) { *pres = JS_VALUE_GET_INT(val); return 0; } else if (JS_TAG_IS_FLOAT64(tag)) { *pres = JS_VALUE_GET_FLOAT64(val); return 0; } else { return __JS_ToFloat64Free(ctx, pres, val); } } int JS_ToFloat64(JSContext *ctx, double *pres, JSValueConst val) { return JS_ToFloat64Free(ctx, pres, JS_DupValue(ctx, val)); } static JSValue JS_ToNumber(JSContext *ctx, JSValueConst val) { return JS_ToNumberFree(ctx, JS_DupValue(ctx, val)); } /* same as JS_ToNumber() but return 0 in case of NaN/Undefined */ static __maybe_unused JSValue JS_ToIntegerFree(JSContext *ctx, JSValue val) { uint32_t tag; JSValue ret; redo: tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_INT: case JS_TAG_BOOL: case JS_TAG_NULL: case JS_TAG_UNDEFINED: ret = JS_NewInt32(ctx, JS_VALUE_GET_INT(val)); break; case JS_TAG_FLOAT64: { double d = JS_VALUE_GET_FLOAT64(val); if (isnan(d)) { ret = JS_NewInt32(ctx, 0); } else { /* convert -0 to +0 */ d = trunc(d) + 0.0; ret = JS_NewFloat64(ctx, d); } } break; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_FLOAT: { bf_t a_s, *a, r_s, *r = &r_s; BOOL is_nan; a = JS_ToBigFloat(ctx, &a_s, val); if (!bf_is_finite(a)) { is_nan = bf_is_nan(a); if (is_nan) ret = JS_NewInt32(ctx, 0); else ret = JS_DupValue(ctx, val); } else { ret = JS_NewBigInt(ctx); if (!JS_IsException(ret)) { r = JS_GetBigInt(ret); bf_set(r, a); bf_rint(r, BF_RNDZ); ret = JS_CompactBigInt(ctx, ret); } } if (a == &a_s) bf_delete(a); JS_FreeValue(ctx, val); } break; #endif default: val = JS_ToNumberFree(ctx, val); if (JS_IsException(val)) return val; goto redo; } return ret; } /* Note: the integer value is satured to 32 bits */ static int JS_ToInt32SatFree(JSContext *ctx, int *pres, JSValue val) { uint32_t tag; int ret; redo: tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_INT: case JS_TAG_BOOL: case JS_TAG_NULL: case JS_TAG_UNDEFINED: ret = JS_VALUE_GET_INT(val); break; case JS_TAG_EXCEPTION: *pres = 0; return -1; case JS_TAG_FLOAT64: { double d = JS_VALUE_GET_FLOAT64(val); if (isnan(d)) { ret = 0; } else { if (d < INT32_MIN) ret = INT32_MIN; else if (d > INT32_MAX) ret = INT32_MAX; else ret = (int)d; } } break; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_FLOAT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); bf_get_int32(&ret, &p->num, 0); JS_FreeValue(ctx, val); } break; #endif default: val = JS_ToNumberFree(ctx, val); if (JS_IsException(val)) { *pres = 0; return -1; } goto redo; } *pres = ret; return 0; } int JS_ToInt32Sat(JSContext *ctx, int *pres, JSValueConst val) { return JS_ToInt32SatFree(ctx, pres, JS_DupValue(ctx, val)); } int JS_ToInt32Clamp(JSContext *ctx, int *pres, JSValueConst val, int min, int max, int min_offset) { int res = JS_ToInt32SatFree(ctx, pres, JS_DupValue(ctx, val)); if (res == 0) { if (*pres < min) { *pres += min_offset; if (*pres < min) *pres = min; } else { if (*pres > max) *pres = max; } } return res; } static int JS_ToInt64SatFree(JSContext *ctx, int64_t *pres, JSValue val) { uint32_t tag; redo: tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_INT: case JS_TAG_BOOL: case JS_TAG_NULL: case JS_TAG_UNDEFINED: *pres = JS_VALUE_GET_INT(val); return 0; case JS_TAG_EXCEPTION: *pres = 0; return -1; case JS_TAG_FLOAT64: { double d = JS_VALUE_GET_FLOAT64(val); if (isnan(d)) { *pres = 0; } else { if (d < INT64_MIN) *pres = INT64_MIN; else if (d > INT64_MAX) *pres = INT64_MAX; else *pres = (int64_t)d; } } return 0; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_FLOAT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); bf_get_int64(pres, &p->num, 0); JS_FreeValue(ctx, val); } return 0; #endif default: val = JS_ToNumberFree(ctx, val); if (JS_IsException(val)) { *pres = 0; return -1; } goto redo; } } int JS_ToInt64Sat(JSContext *ctx, int64_t *pres, JSValueConst val) { return JS_ToInt64SatFree(ctx, pres, JS_DupValue(ctx, val)); } int JS_ToInt64Clamp(JSContext *ctx, int64_t *pres, JSValueConst val, int64_t min, int64_t max, int64_t neg_offset) { int res = JS_ToInt64SatFree(ctx, pres, JS_DupValue(ctx, val)); if (res == 0) { if (*pres < 0) *pres += neg_offset; if (*pres < min) *pres = min; else if (*pres > max) *pres = max; } return res; } /* Same as JS_ToInt32Free() but with a 64 bit result. Return (<0, 0) in case of exception */ static int JS_ToInt64Free(JSContext *ctx, int64_t *pres, JSValue val) { uint32_t tag; int64_t ret; redo: tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_INT: case JS_TAG_BOOL: case JS_TAG_NULL: case JS_TAG_UNDEFINED: ret = JS_VALUE_GET_INT(val); break; case JS_TAG_FLOAT64: { JSFloat64Union u; double d; int e; d = JS_VALUE_GET_FLOAT64(val); u.d = d; /* we avoid doing fmod(x, 2^64) */ e = (u.u64 >> 52) & 0x7ff; if (likely(e <= (1023 + 62))) { /* fast case */ ret = (int64_t)d; } else if (e <= (1023 + 62 + 53)) { uint64_t v; /* remainder modulo 2^64 */ v = (u.u64 & (((uint64_t)1 << 52) - 1)) | ((uint64_t)1 << 52); ret = v << ((e - 1023) - 52); /* take the sign into account */ if (u.u64 >> 63) ret = -ret; } else { ret = 0; /* also handles NaN and +inf */ } } break; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_FLOAT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); bf_get_int64(&ret, &p->num, BF_GET_INT_MOD); JS_FreeValue(ctx, val); } break; #endif default: val = JS_ToNumberFree(ctx, val); if (JS_IsException(val)) { *pres = 0; return -1; } goto redo; } *pres = ret; return 0; } int JS_ToInt64(JSContext *ctx, int64_t *pres, JSValueConst val) { return JS_ToInt64Free(ctx, pres, JS_DupValue(ctx, val)); } int JS_ToInt64Ext(JSContext *ctx, int64_t *pres, JSValueConst val) { if (JS_IsBigInt(ctx, val)) return JS_ToBigInt64(ctx, pres, val); else return JS_ToInt64(ctx, pres, val); } /* return (<0, 0) in case of exception */ static int JS_ToInt32Free(JSContext *ctx, int32_t *pres, JSValue val) { uint32_t tag; int32_t ret; redo: tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_INT: case JS_TAG_BOOL: case JS_TAG_NULL: case JS_TAG_UNDEFINED: ret = JS_VALUE_GET_INT(val); break; case JS_TAG_FLOAT64: { JSFloat64Union u; double d; int e; d = JS_VALUE_GET_FLOAT64(val); u.d = d; /* we avoid doing fmod(x, 2^32) */ e = (u.u64 >> 52) & 0x7ff; if (likely(e <= (1023 + 30))) { /* fast case */ ret = (int32_t)d; } else if (e <= (1023 + 30 + 53)) { uint64_t v; /* remainder modulo 2^32 */ v = (u.u64 & (((uint64_t)1 << 52) - 1)) | ((uint64_t)1 << 52); v = v << ((e - 1023) - 52 + 32); ret = v >> 32; /* take the sign into account */ if (u.u64 >> 63) ret = -ret; } else { ret = 0; /* also handles NaN and +inf */ } } break; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_FLOAT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); bf_get_int32(&ret, &p->num, BF_GET_INT_MOD); JS_FreeValue(ctx, val); } break; #endif default: val = JS_ToNumberFree(ctx, val); if (JS_IsException(val)) { *pres = 0; return -1; } goto redo; } *pres = ret; return 0; } int JS_ToInt32(JSContext *ctx, int32_t *pres, JSValueConst val) { return JS_ToInt32Free(ctx, pres, JS_DupValue(ctx, val)); } static inline int JS_ToUint32Free(JSContext *ctx, uint32_t *pres, JSValue val) { return JS_ToInt32Free(ctx, (int32_t *)pres, val); } static int JS_ToUint8ClampFree(JSContext *ctx, int32_t *pres, JSValue val) { uint32_t tag; int res; redo: tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_INT: case JS_TAG_BOOL: case JS_TAG_NULL: case JS_TAG_UNDEFINED: res = JS_VALUE_GET_INT(val); #ifdef CONFIG_BIGNUM int_clamp: #endif res = max_int(0, min_int(255, res)); break; case JS_TAG_FLOAT64: { double d = JS_VALUE_GET_FLOAT64(val); if (isnan(d)) { res = 0; } else { if (d < 0) res = 0; else if (d > 255) res = 255; else res = lrint(d); } } break; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_FLOAT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); bf_t r_s, *r = &r_s; bf_init(ctx->bf_ctx, r); bf_set(r, &p->num); bf_rint(r, BF_RNDN); bf_get_int32(&res, r, 0); bf_delete(r); JS_FreeValue(ctx, val); } goto int_clamp; #endif default: val = JS_ToNumberFree(ctx, val); if (JS_IsException(val)) { *pres = 0; return -1; } goto redo; } *pres = res; return 0; } static __exception int JS_ToArrayLengthFree(JSContext *ctx, uint32_t *plen, JSValue val) { uint32_t tag, len; redo: tag = JS_VALUE_GET_TAG(val); switch(tag) { case JS_TAG_INT: case JS_TAG_BOOL: case JS_TAG_NULL: { int v; v = JS_VALUE_GET_INT(val); if (v < 0) goto fail; len = v; } break; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: case JS_TAG_BIG_FLOAT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); bf_t a; BOOL res; bf_get_int32((int32_t *)&len, &p->num, BF_GET_INT_MOD); bf_init(ctx->bf_ctx, &a); bf_set_ui(&a, len); res = bf_cmp_eq(&a, &p->num); bf_delete(&a); JS_FreeValue(ctx, val); if (!res) goto fail; } break; #endif default: if (JS_TAG_IS_FLOAT64(tag)) { double d; d = JS_VALUE_GET_FLOAT64(val); len = (uint32_t)d; if (len != d) { fail: JS_ThrowRangeError(ctx, "invalid array length"); return -1; } } else { val = JS_ToNumberFree(ctx, val); if (JS_IsException(val)) return -1; goto redo; } break; } *plen = len; return 0; } #define MAX_SAFE_INTEGER (((int64_t)1 << 53) - 1) static BOOL is_safe_integer(double d) { return isfinite(d) && floor(d) == d && fabs(d) <= (double)MAX_SAFE_INTEGER; } int JS_ToIndex(JSContext *ctx, uint64_t *plen, JSValueConst val) { int64_t v; if (JS_ToInt64Sat(ctx, &v, val)) return -1; if (v < 0 || v > MAX_SAFE_INTEGER) { JS_ThrowRangeError(ctx, "invalid array index"); *plen = 0; return -1; } *plen = v; return 0; } /* convert a value to a length between 0 and MAX_SAFE_INTEGER. return -1 for exception */ static __exception int JS_ToLengthFree(JSContext *ctx, int64_t *plen, JSValue val) { int res = JS_ToInt64Clamp(ctx, plen, val, 0, MAX_SAFE_INTEGER, 0); JS_FreeValue(ctx, val); return res; } /* Note: can return an exception */ static int JS_NumberIsInteger(JSContext *ctx, JSValueConst val) { double d; if (!JS_IsNumber(val)) return FALSE; if (unlikely(JS_ToFloat64(ctx, &d, val))) return -1; return isfinite(d) && floor(d) == d; } static BOOL JS_NumberIsNegativeOrMinusZero(JSContext *ctx, JSValueConst val) { uint32_t tag; tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_INT: { int v; v = JS_VALUE_GET_INT(val); return (v < 0); } case JS_TAG_FLOAT64: { JSFloat64Union u; u.d = JS_VALUE_GET_FLOAT64(val); return (u.u64 >> 63); } #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); /* Note: integer zeros are not necessarily positive */ return p->num.sign && !bf_is_zero(&p->num); } case JS_TAG_BIG_FLOAT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); return p->num.sign; } break; case JS_TAG_BIG_DECIMAL: { JSBigDecimal *p = JS_VALUE_GET_PTR(val); return p->num.sign; } break; #endif default: return FALSE; } } #ifdef CONFIG_BIGNUM static JSValue js_bigint_to_string1(JSContext *ctx, JSValueConst val, int radix) { JSValue ret; bf_t a_s, *a; char *str; int saved_sign; a = JS_ToBigInt(ctx, &a_s, val); if (!a) return JS_EXCEPTION; saved_sign = a->sign; if (a->expn == BF_EXP_ZERO) a->sign = 0; str = bf_ftoa(NULL, a, radix, 0, BF_RNDZ | BF_FTOA_FORMAT_FRAC | BF_FTOA_JS_QUIRKS); a->sign = saved_sign; JS_FreeBigInt(ctx, a, &a_s); if (!str) return JS_ThrowOutOfMemory(ctx); ret = JS_NewString(ctx, str); bf_free(ctx->bf_ctx, str); return ret; } static JSValue js_bigint_to_string(JSContext *ctx, JSValueConst val) { return js_bigint_to_string1(ctx, val, 10); } static JSValue js_ftoa(JSContext *ctx, JSValueConst val1, int radix, limb_t prec, bf_flags_t flags) { JSValue val, ret; bf_t a_s, *a; char *str; int saved_sign; val = JS_ToNumeric(ctx, val1); if (JS_IsException(val)) return val; a = JS_ToBigFloat(ctx, &a_s, val); saved_sign = a->sign; if (a->expn == BF_EXP_ZERO) a->sign = 0; flags |= BF_FTOA_JS_QUIRKS; if ((flags & BF_FTOA_FORMAT_MASK) == BF_FTOA_FORMAT_FREE_MIN) { /* Note: for floating point numbers with a radix which is not a power of two, the current precision is used to compute the number of digits. */ if ((radix & (radix - 1)) != 0) { bf_t r_s, *r = &r_s; int prec, flags1; /* must round first */ if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_FLOAT) { prec = ctx->fp_env.prec; flags1 = ctx->fp_env.flags & (BF_FLAG_SUBNORMAL | (BF_EXP_BITS_MASK << BF_EXP_BITS_SHIFT)); } else { prec = 53; flags1 = bf_set_exp_bits(11) | BF_FLAG_SUBNORMAL; } bf_init(ctx->bf_ctx, r); bf_set(r, a); bf_round(r, prec, flags1 | BF_RNDN); str = bf_ftoa(NULL, r, radix, prec, flags1 | flags); bf_delete(r); } else { str = bf_ftoa(NULL, a, radix, BF_PREC_INF, flags); } } else { str = bf_ftoa(NULL, a, radix, prec, flags); } a->sign = saved_sign; if (a == &a_s) bf_delete(a); JS_FreeValue(ctx, val); if (!str) return JS_ThrowOutOfMemory(ctx); ret = JS_NewString(ctx, str); bf_free(ctx->bf_ctx, str); return ret; } static JSValue js_bigfloat_to_string(JSContext *ctx, JSValueConst val) { return js_ftoa(ctx, val, 10, 0, BF_RNDN | BF_FTOA_FORMAT_FREE_MIN); } static JSValue js_bigdecimal_to_string1(JSContext *ctx, JSValueConst val, limb_t prec, int flags) { JSValue ret; bfdec_t *a; char *str; int saved_sign; a = JS_ToBigDecimal(ctx, val); saved_sign = a->sign; if (a->expn == BF_EXP_ZERO) a->sign = 0; str = bfdec_ftoa(NULL, a, prec, flags | BF_FTOA_JS_QUIRKS); a->sign = saved_sign; if (!str) return JS_ThrowOutOfMemory(ctx); ret = JS_NewString(ctx, str); bf_free(ctx->bf_ctx, str); return ret; } static JSValue js_bigdecimal_to_string(JSContext *ctx, JSValueConst val) { return js_bigdecimal_to_string1(ctx, val, 0, BF_RNDZ | BF_FTOA_FORMAT_FREE); } #endif /* CONFIG_BIGNUM */ /* 2 <= base <= 36 */ static char *i64toa(char *buf_end, int64_t n, unsigned int base) { char *q = buf_end; int digit, is_neg; is_neg = 0; if (n < 0) { is_neg = 1; n = -n; } *--q = '\0'; do { digit = (uint64_t)n % base; n = (uint64_t)n / base; if (digit < 10) digit += '0'; else digit += 'a' - 10; *--q = digit; } while (n != 0); if (is_neg) *--q = '-'; return q; } /* buf1 contains the printf result */ static void js_ecvt1(double d, int n_digits, int *decpt, int *sign, char *buf, int rounding_mode, char *buf1, int buf1_size) { if (rounding_mode != FE_TONEAREST) fesetround(rounding_mode); snprintf(buf1, buf1_size, "%+.*e", n_digits - 1, d); if (rounding_mode != FE_TONEAREST) fesetround(FE_TONEAREST); *sign = (buf1[0] == '-'); /* mantissa */ buf[0] = buf1[1]; if (n_digits > 1) memcpy(buf + 1, buf1 + 3, n_digits - 1); buf[n_digits] = '\0'; /* exponent */ *decpt = atoi(buf1 + n_digits + 2 + (n_digits > 1)) + 1; } /* maximum buffer size for js_dtoa */ #define JS_DTOA_BUF_SIZE 128 /* needed because ecvt usually limits the number of digits to 17. Return the number of digits. */ static int js_ecvt(double d, int n_digits, int *decpt, int *sign, char *buf, BOOL is_fixed) { int rounding_mode; char buf_tmp[JS_DTOA_BUF_SIZE]; if (!is_fixed) { unsigned int n_digits_min, n_digits_max; /* find the minimum amount of digits (XXX: inefficient but simple) */ n_digits_min = 1; n_digits_max = 17; while (n_digits_min < n_digits_max) { n_digits = (n_digits_min + n_digits_max) / 2; js_ecvt1(d, n_digits, decpt, sign, buf, FE_TONEAREST, buf_tmp, sizeof(buf_tmp)); if (strtod(buf_tmp, NULL) == d) { /* no need to keep the trailing zeros */ while (n_digits >= 2 && buf[n_digits - 1] == '0') n_digits--; n_digits_max = n_digits; } else { n_digits_min = n_digits + 1; } } n_digits = n_digits_max; rounding_mode = FE_TONEAREST; } else { rounding_mode = FE_TONEAREST; #ifdef CONFIG_PRINTF_RNDN { char buf1[JS_DTOA_BUF_SIZE], buf2[JS_DTOA_BUF_SIZE]; int decpt1, sign1, decpt2, sign2; /* The JS rounding is specified as round to nearest ties away from zero (RNDNA), but in printf the "ties" case is not specified (for example it is RNDN for glibc, RNDNA for Windows), so we must round manually. */ js_ecvt1(d, n_digits + 1, &decpt1, &sign1, buf1, FE_TONEAREST, buf_tmp, sizeof(buf_tmp)); /* XXX: could use 2 digits to reduce the average running time */ if (buf1[n_digits] == '5') { js_ecvt1(d, n_digits + 1, &decpt1, &sign1, buf1, FE_DOWNWARD, buf_tmp, sizeof(buf_tmp)); js_ecvt1(d, n_digits + 1, &decpt2, &sign2, buf2, FE_UPWARD, buf_tmp, sizeof(buf_tmp)); if (memcmp(buf1, buf2, n_digits + 1) == 0 && decpt1 == decpt2) { /* exact result: round away from zero */ if (sign1) rounding_mode = FE_DOWNWARD; else rounding_mode = FE_UPWARD; } } } #endif /* CONFIG_PRINTF_RNDN */ } js_ecvt1(d, n_digits, decpt, sign, buf, rounding_mode, buf_tmp, sizeof(buf_tmp)); return n_digits; } static int js_fcvt1(char *buf, int buf_size, double d, int n_digits, int rounding_mode) { int n; if (rounding_mode != FE_TONEAREST) fesetround(rounding_mode); n = snprintf(buf, buf_size, "%.*f", n_digits, d); if (rounding_mode != FE_TONEAREST) fesetround(FE_TONEAREST); assert(n < buf_size); return n; } static void js_fcvt(char *buf, int buf_size, double d, int n_digits) { int rounding_mode; rounding_mode = FE_TONEAREST; #ifdef CONFIG_PRINTF_RNDN { int n1, n2; char buf1[JS_DTOA_BUF_SIZE]; char buf2[JS_DTOA_BUF_SIZE]; /* The JS rounding is specified as round to nearest ties away from zero (RNDNA), but in printf the "ties" case is not specified (for example it is RNDN for glibc, RNDNA for Windows), so we must round manually. */ n1 = js_fcvt1(buf1, sizeof(buf1), d, n_digits + 1, FE_TONEAREST); rounding_mode = FE_TONEAREST; /* XXX: could use 2 digits to reduce the average running time */ if (buf1[n1 - 1] == '5') { n1 = js_fcvt1(buf1, sizeof(buf1), d, n_digits + 1, FE_DOWNWARD); n2 = js_fcvt1(buf2, sizeof(buf2), d, n_digits + 1, FE_UPWARD); if (n1 == n2 && memcmp(buf1, buf2, n1) == 0) { /* exact result: round away from zero */ if (buf1[0] == '-') rounding_mode = FE_DOWNWARD; else rounding_mode = FE_UPWARD; } } } #endif /* CONFIG_PRINTF_RNDN */ js_fcvt1(buf, buf_size, d, n_digits, rounding_mode); } /* radix != 10 is only supported with flags = JS_DTOA_VAR_FORMAT */ /* use as many digits as necessary */ #define JS_DTOA_VAR_FORMAT (0 << 0) /* use n_digits significant digits (1 <= n_digits <= 101) */ #define JS_DTOA_FIXED_FORMAT (1 << 0) /* force fractional format: [-]dd.dd with n_digits fractional digits */ #define JS_DTOA_FRAC_FORMAT (2 << 0) /* force exponential notation either in fixed or variable format */ #define JS_DTOA_FORCE_EXP (1 << 2) /* XXX: slow and maybe not fully correct. Use libbf when it is fast enough. XXX: radix != 10 is only supported for small integers */ static void js_dtoa1(char *buf, double d, int radix, int n_digits, int flags) { char *q; if (!isfinite(d)) { if (isnan(d)) { strcpy(buf, "NaN"); } else { q = buf; if (d < 0) *q++ = '-'; strcpy(q, "Infinity"); } } else if (flags == JS_DTOA_VAR_FORMAT) { int64_t i64; char buf1[70], *ptr; i64 = (int64_t)d; if (d != i64 || i64 > MAX_SAFE_INTEGER || i64 < -MAX_SAFE_INTEGER) goto generic_conv; /* fast path for integers */ ptr = i64toa(buf1 + sizeof(buf1), i64, radix); strcpy(buf, ptr); } else { if (d == 0.0) d = 0.0; /* convert -0 to 0 */ if (flags == JS_DTOA_FRAC_FORMAT) { js_fcvt(buf, JS_DTOA_BUF_SIZE, d, n_digits); } else { char buf1[JS_DTOA_BUF_SIZE]; int sign, decpt, k, n, i, p, n_max; BOOL is_fixed; generic_conv: is_fixed = ((flags & 3) == JS_DTOA_FIXED_FORMAT); if (is_fixed) { n_max = n_digits; } else { n_max = 21; } /* the number has k digits (k >= 1) */ k = js_ecvt(d, n_digits, &decpt, &sign, buf1, is_fixed); n = decpt; /* d=10^(n-k)*(buf1) i.e. d= < x.yyyy 10^(n-1) */ q = buf; if (sign) *q++ = '-'; if (flags & JS_DTOA_FORCE_EXP) goto force_exp; if (n >= 1 && n <= n_max) { if (k <= n) { memcpy(q, buf1, k); q += k; for(i = 0; i < (n - k); i++) *q++ = '0'; *q = '\0'; } else { /* k > n */ memcpy(q, buf1, n); q += n; *q++ = '.'; for(i = 0; i < (k - n); i++) *q++ = buf1[n + i]; *q = '\0'; } } else if (n >= -5 && n <= 0) { *q++ = '0'; *q++ = '.'; for(i = 0; i < -n; i++) *q++ = '0'; memcpy(q, buf1, k); q += k; *q = '\0'; } else { force_exp: /* exponential notation */ *q++ = buf1[0]; if (k > 1) { *q++ = '.'; for(i = 1; i < k; i++) *q++ = buf1[i]; } *q++ = 'e'; p = n - 1; if (p >= 0) *q++ = '+'; sprintf(q, "%d", p); } } } } static JSValue js_dtoa(JSContext *ctx, double d, int radix, int n_digits, int flags) { char buf[JS_DTOA_BUF_SIZE]; js_dtoa1(buf, d, radix, n_digits, flags); return JS_NewString(ctx, buf); } JSValue JS_ToStringInternal(JSContext *ctx, JSValueConst val, BOOL is_ToPropertyKey) { uint32_t tag; const char *str; char buf[32]; tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_STRING: return JS_DupValue(ctx, val); case JS_TAG_INT: snprintf(buf, sizeof(buf), "%d", JS_VALUE_GET_INT(val)); str = buf; goto new_string; case JS_TAG_BOOL: return JS_AtomToString(ctx, JS_VALUE_GET_BOOL(val) ? JS_ATOM_true : JS_ATOM_false); case JS_TAG_NULL: return JS_AtomToString(ctx, JS_ATOM_null); case JS_TAG_UNDEFINED: return JS_AtomToString(ctx, JS_ATOM_undefined); case JS_TAG_EXCEPTION: return JS_EXCEPTION; case JS_TAG_OBJECT: { JSValue val1, ret; val1 = JS_ToPrimitive(ctx, val, HINT_STRING); if (JS_IsException(val1)) return val1; ret = JS_ToStringInternal(ctx, val1, is_ToPropertyKey); JS_FreeValue(ctx, val1); return ret; } break; case JS_TAG_FUNCTION_BYTECODE: str = "[function bytecode]"; goto new_string; case JS_TAG_SYMBOL: if (is_ToPropertyKey) { return JS_DupValue(ctx, val); } else { return JS_ThrowTypeError(ctx, "cannot convert symbol to string"); } case JS_TAG_FLOAT64: return js_dtoa(ctx, JS_VALUE_GET_FLOAT64(val), 10, 0, JS_DTOA_VAR_FORMAT); #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: return ctx->rt->bigint_ops.to_string(ctx, val); case JS_TAG_BIG_FLOAT: return ctx->rt->bigfloat_ops.to_string(ctx, val); case JS_TAG_BIG_DECIMAL: return ctx->rt->bigdecimal_ops.to_string(ctx, val); #endif default: str = "[unsupported type]"; new_string: return JS_NewString(ctx, str); } } JSValue JS_ToString(JSContext *ctx, JSValueConst val) { return JS_ToStringInternal(ctx, val, FALSE); } static JSValue JS_ToStringFree(JSContext *ctx, JSValue val) { JSValue ret; ret = JS_ToString(ctx, val); JS_FreeValue(ctx, val); return ret; } static JSValue JS_ToLocaleStringFree(JSContext *ctx, JSValue val) { if (JS_IsUndefined(val) || JS_IsNull(val)) return JS_ToStringFree(ctx, val); return JS_InvokeFree(ctx, val, JS_ATOM_toLocaleString, 0, NULL); } JSValue JS_ToPropertyKey(JSContext *ctx, JSValueConst val) { return JS_ToStringInternal(ctx, val, TRUE); } static JSValue JS_ToStringCheckObject(JSContext *ctx, JSValueConst val) { uint32_t tag = JS_VALUE_GET_TAG(val); if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED) return JS_ThrowTypeError(ctx, "null or undefined are forbidden"); return JS_ToString(ctx, val); } static JSValue JS_ToQuotedString(JSContext *ctx, JSValueConst val1) { JSValue val; JSString *p; int i; uint32_t c; StringBuffer b_s, *b = &b_s; char buf[16]; val = JS_ToStringCheckObject(ctx, val1); if (JS_IsException(val)) return val; p = JS_VALUE_GET_STRING(val); if (string_buffer_init(ctx, b, p->len + 2)) goto fail; if (string_buffer_putc8(b, '\"')) goto fail; for(i = 0; i < p->len; ) { c = string_getc(p, &i); switch(c) { case '\t': c = 't'; goto quote; case '\r': c = 'r'; goto quote; case '\n': c = 'n'; goto quote; case '\b': c = 'b'; goto quote; case '\f': c = 'f'; goto quote; case '\"': case '\\': quote: if (string_buffer_putc8(b, '\\')) goto fail; if (string_buffer_putc8(b, c)) goto fail; break; default: if (c < 32 || (c >= 0xd800 && c < 0xe000)) { snprintf(buf, sizeof(buf), "\\u%04x", c); if (string_buffer_puts8(b, buf)) goto fail; } else { if (string_buffer_putc(b, c)) goto fail; } break; } } if (string_buffer_putc8(b, '\"')) goto fail; JS_FreeValue(ctx, val); return string_buffer_end(b); fail: JS_FreeValue(ctx, val); string_buffer_free(b); return JS_EXCEPTION; } static __maybe_unused void JS_DumpObjectHeader(JSRuntime *rt) { printf("%14s %4s %4s %14s %10s %s\n", "ADDRESS", "REFS", "SHRF", "PROTO", "CLASS", "PROPS"); } /* for debug only: dump an object without side effect */ static __maybe_unused void JS_DumpObject(JSRuntime *rt, JSObject *p) { uint32_t i; char atom_buf[ATOM_GET_STR_BUF_SIZE]; JSShape *sh; JSShapeProperty *prs; JSProperty *pr; BOOL is_first = TRUE; /* XXX: should encode atoms with special characters */ sh = p->shape; /* the shape can be NULL while freeing an object */ printf("%14p %4d ", (void *)p, p->header.ref_count); if (sh) { printf("%3d%c %14p ", sh->header.ref_count, " *"[sh->is_hashed], (void *)sh->proto); } else { printf("%3s %14s ", "-", "-"); } printf("%10s ", JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), rt->class_array[p->class_id].class_name)); if (p->is_exotic && p->fast_array) { printf("[ "); for(i = 0; i < p->u.array.count; i++) { if (i != 0) printf(", "); switch (p->class_id) { case JS_CLASS_ARRAY: case JS_CLASS_ARGUMENTS: JS_DumpValueShort(rt, p->u.array.u.values[i]); break; case JS_CLASS_UINT8C_ARRAY ... JS_CLASS_FLOAT64_ARRAY: { int size = 1 << typed_array_size_log2(p->class_id); const uint8_t *b = p->u.array.u.uint8_ptr + i * size; while (size-- > 0) printf("%02X", *b++); } break; } } printf(" ] "); } if (sh) { printf("{ "); for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) { if (prs->atom != JS_ATOM_NULL) { pr = &p->prop[i]; if (!is_first) printf(", "); printf("%s: ", JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), prs->atom)); if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) { printf("[getset %p %p]", (void *)pr->u.getset.getter, (void *)pr->u.getset.setter); } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) { printf("[varref %p]", (void *)pr->u.var_ref); } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) { printf("[autoinit %p %d %p]", (void *)js_autoinit_get_realm(pr), js_autoinit_get_id(pr), (void *)pr->u.init.opaque); } else { JS_DumpValueShort(rt, pr->u.value); } is_first = FALSE; } } printf(" }"); } if (js_class_has_bytecode(p->class_id)) { JSFunctionBytecode *b = p->u.func.function_bytecode; JSVarRef **var_refs; if (b->closure_var_count) { var_refs = p->u.func.var_refs; printf(" Closure:"); for(i = 0; i < b->closure_var_count; i++) { printf(" "); JS_DumpValueShort(rt, var_refs[i]->value); } if (p->u.func.home_object) { printf(" HomeObject: "); JS_DumpValueShort(rt, JS_MKPTR(JS_TAG_OBJECT, p->u.func.home_object)); } } } printf("\n"); } static __maybe_unused void JS_DumpGCObject(JSRuntime *rt, JSGCObjectHeader *p) { if (p->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT) { JS_DumpObject(rt, (JSObject *)p); } else { printf("%14p %4d ", (void *)p, p->ref_count); switch(p->gc_obj_type) { case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE: printf("[function bytecode]"); break; case JS_GC_OBJ_TYPE_SHAPE: printf("[shape]"); break; case JS_GC_OBJ_TYPE_VAR_REF: printf("[var_ref]"); break; case JS_GC_OBJ_TYPE_ASYNC_FUNCTION: printf("[async_function]"); break; case JS_GC_OBJ_TYPE_JS_CONTEXT: printf("[js_context]"); break; default: printf("[unknown %d]", p->gc_obj_type); break; } printf("\n"); } } static __maybe_unused void JS_DumpValueShort(JSRuntime *rt, JSValueConst val) { uint32_t tag = JS_VALUE_GET_NORM_TAG(val); const char *str; switch(tag) { case JS_TAG_INT: printf("%d", JS_VALUE_GET_INT(val)); break; case JS_TAG_BOOL: if (JS_VALUE_GET_BOOL(val)) str = "true"; else str = "false"; goto print_str; case JS_TAG_NULL: str = "null"; goto print_str; case JS_TAG_EXCEPTION: str = "exception"; goto print_str; case JS_TAG_UNINITIALIZED: str = "uninitialized"; goto print_str; case JS_TAG_UNDEFINED: str = "undefined"; print_str: printf("%s", str); break; case JS_TAG_FLOAT64: printf("%.14g", JS_VALUE_GET_FLOAT64(val)); break; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); char *str; str = bf_ftoa(NULL, &p->num, 10, 0, BF_RNDZ | BF_FTOA_FORMAT_FRAC); printf("%sn", str); bf_realloc(&rt->bf_ctx, str, 0); } break; case JS_TAG_BIG_FLOAT: { JSBigFloat *p = JS_VALUE_GET_PTR(val); char *str; str = bf_ftoa(NULL, &p->num, 16, BF_PREC_INF, BF_RNDZ | BF_FTOA_FORMAT_FREE | BF_FTOA_ADD_PREFIX); printf("%sl", str); bf_free(&rt->bf_ctx, str); } break; case JS_TAG_BIG_DECIMAL: { JSBigDecimal *p = JS_VALUE_GET_PTR(val); char *str; str = bfdec_ftoa(NULL, &p->num, BF_PREC_INF, BF_RNDZ | BF_FTOA_FORMAT_FREE); printf("%sm", str); bf_free(&rt->bf_ctx, str); } break; #endif case JS_TAG_STRING: { JSString *p; p = JS_VALUE_GET_STRING(val); JS_DumpString(rt, p); } break; case JS_TAG_FUNCTION_BYTECODE: { JSFunctionBytecode *b = JS_VALUE_GET_PTR(val); char buf[ATOM_GET_STR_BUF_SIZE]; printf("[bytecode %s]", JS_AtomGetStrRT(rt, buf, sizeof(buf), b->func_name)); } break; case JS_TAG_OBJECT: { JSObject *p = JS_VALUE_GET_OBJ(val); JSAtom atom = rt->class_array[p->class_id].class_name; char atom_buf[ATOM_GET_STR_BUF_SIZE]; printf("[%s %p]", JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), atom), (void *)p); } break; case JS_TAG_SYMBOL: { JSAtomStruct *p = JS_VALUE_GET_PTR(val); char atom_buf[ATOM_GET_STR_BUF_SIZE]; printf("Symbol(%s)", JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), js_get_atom_index(rt, p))); } break; case JS_TAG_MODULE: printf("[module]"); break; default: printf("[unknown tag %d]", tag); break; } } static __maybe_unused void JS_DumpValue(JSContext *ctx, JSValueConst val) { JS_DumpValueShort(ctx->rt, val); } static __maybe_unused void JS_PrintValue(JSContext *ctx, const char *str, JSValueConst val) { printf("%s=", str); JS_DumpValueShort(ctx->rt, val); printf("\n"); } /* return -1 if exception (proxy case) or TRUE/FALSE */ int JS_IsArray(JSContext *ctx, JSValueConst val) { JSObject *p; if (JS_VALUE_GET_TAG(val) == JS_TAG_OBJECT) { p = JS_VALUE_GET_OBJ(val); if (unlikely(p->class_id == JS_CLASS_PROXY)) return js_proxy_isArray(ctx, val); else return p->class_id == JS_CLASS_ARRAY; } else { return FALSE; } } static double js_pow(double a, double b) { if (unlikely(!isfinite(b)) && fabs(a) == 1) { /* not compatible with IEEE 754 */ return JS_FLOAT64_NAN; } else { return pow(a, b); } } #ifdef CONFIG_BIGNUM JSValue JS_NewBigInt64_1(JSContext *ctx, int64_t v) { JSValue val; bf_t *a; val = JS_NewBigInt(ctx); if (JS_IsException(val)) return val; a = JS_GetBigInt(val); if (bf_set_si(a, v)) { JS_FreeValue(ctx, val); return JS_ThrowOutOfMemory(ctx); } return val; } JSValue JS_NewBigInt64(JSContext *ctx, int64_t v) { if (is_math_mode(ctx) && v >= -MAX_SAFE_INTEGER && v <= MAX_SAFE_INTEGER) { return JS_NewInt64(ctx, v); } else { return JS_NewBigInt64_1(ctx, v); } } JSValue JS_NewBigUint64(JSContext *ctx, uint64_t v) { JSValue val; if (is_math_mode(ctx) && v <= MAX_SAFE_INTEGER) { val = JS_NewInt64(ctx, v); } else { bf_t *a; val = JS_NewBigInt(ctx); if (JS_IsException(val)) return val; a = JS_GetBigInt(val); if (bf_set_ui(a, v)) { JS_FreeValue(ctx, val); return JS_ThrowOutOfMemory(ctx); } } return val; } /* if the returned bigfloat is allocated it is equal to 'buf'. Otherwise it is a pointer to the bigfloat in 'val'. Return NULL in case of error. */ static bf_t *JS_ToBigFloat(JSContext *ctx, bf_t *buf, JSValueConst val) { uint32_t tag; bf_t *r; JSBigFloat *p; tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_INT: case JS_TAG_BOOL: case JS_TAG_NULL: r = buf; bf_init(ctx->bf_ctx, r); if (bf_set_si(r, JS_VALUE_GET_INT(val))) goto fail; break; case JS_TAG_FLOAT64: r = buf; bf_init(ctx->bf_ctx, r); if (bf_set_float64(r, JS_VALUE_GET_FLOAT64(val))) { fail: bf_delete(r); return NULL; } break; case JS_TAG_BIG_INT: case JS_TAG_BIG_FLOAT: p = JS_VALUE_GET_PTR(val); r = &p->num; break; case JS_TAG_UNDEFINED: default: r = buf; bf_init(ctx->bf_ctx, r); bf_set_nan(r); break; } return r; } /* return NULL if invalid type */ static bfdec_t *JS_ToBigDecimal(JSContext *ctx, JSValueConst val) { uint32_t tag; JSBigDecimal *p; bfdec_t *r; tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_BIG_DECIMAL: p = JS_VALUE_GET_PTR(val); r = &p->num; break; default: JS_ThrowTypeError(ctx, "bigdecimal expected"); r = NULL; break; } return r; } /* return NaN if bad bigint literal */ static JSValue JS_StringToBigInt(JSContext *ctx, JSValue val) { const char *str, *p; size_t len; int flags; str = JS_ToCStringLen(ctx, &len, val); JS_FreeValue(ctx, val); if (!str) return JS_EXCEPTION; p = str; p += skip_spaces(p); if ((p - str) == len) { val = JS_NewBigInt64(ctx, 0); } else { flags = ATOD_INT_ONLY | ATOD_ACCEPT_BIN_OCT | ATOD_TYPE_BIG_INT; if (is_math_mode(ctx)) flags |= ATOD_MODE_BIGINT; val = js_atof(ctx, p, &p, 0, flags); p += skip_spaces(p); if (!JS_IsException(val)) { if ((p - str) != len) { JS_FreeValue(ctx, val); val = JS_NAN; } } } JS_FreeCString(ctx, str); return val; } static JSValue JS_StringToBigIntErr(JSContext *ctx, JSValue val) { val = JS_StringToBigInt(ctx, val); if (JS_VALUE_IS_NAN(val)) return JS_ThrowSyntaxError(ctx, "invalid bigint literal"); return val; } /* if the returned bigfloat is allocated it is equal to 'buf'. Otherwise it is a pointer to the bigfloat in 'val'. */ static bf_t *JS_ToBigIntFree(JSContext *ctx, bf_t *buf, JSValue val) { uint32_t tag; bf_t *r; JSBigFloat *p; redo: tag = JS_VALUE_GET_NORM_TAG(val); switch(tag) { case JS_TAG_INT: case JS_TAG_NULL: case JS_TAG_UNDEFINED: if (!is_math_mode(ctx)) goto fail; /* fall tru */ case JS_TAG_BOOL: r = buf; bf_init(ctx->bf_ctx, r); bf_set_si(r, JS_VALUE_GET_INT(val)); break; case JS_TAG_FLOAT64: { double d = JS_VALUE_GET_FLOAT64(val); if (!is_math_mode(ctx)) goto fail; if (!isfinite(d)) goto fail; r = buf; bf_init(ctx->bf_ctx, r); d = trunc(d); bf_set_float64(r, d); } break; case JS_TAG_BIG_INT: p = JS_VALUE_GET_PTR(val); r = &p->num; break; case JS_TAG_BIG_FLOAT: if (!is_math_mode(ctx)) goto fail; p = JS_VALUE_GET_PTR(val); if (!bf_is_finite(&p->num)) goto fail; r = buf; bf_init(ctx->bf_ctx, r); bf_set(r, &p->num); bf_rint(r, BF_RNDZ); JS_FreeValue(ctx, val); break; case JS_TAG_STRING: val = JS_StringToBigIntErr(ctx, val); if (JS_IsException(val)) return NULL; goto redo; case JS_TAG_OBJECT: val = JS_ToPrimitiveFree(ctx, val, HINT_NUMBER); if (JS_IsException(val)) return NULL; goto redo; default: fail: JS_FreeValue(ctx, val); JS_ThrowTypeError(ctx, "cannot convert to bigint"); return NULL; } return r; } static bf_t *JS_ToBigInt(JSContext *ctx, bf_t *buf, JSValueConst val) { return JS_ToBigIntFree(ctx, buf, JS_DupValue(ctx, val)); } static __maybe_unused JSValue JS_ToBigIntValueFree(JSContext *ctx, JSValue val) { if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_INT) { return val; } else { bf_t a_s, *a, *r; int ret; JSValue res; res = JS_NewBigInt(ctx); if (JS_IsException(res)) return JS_EXCEPTION; a = JS_ToBigIntFree(ctx, &a_s, val); if (!a) { JS_FreeValue(ctx, res); return JS_EXCEPTION; } r = JS_GetBigInt(res); ret = bf_set(r, a); JS_FreeBigInt(ctx, a, &a_s); if (ret) { JS_FreeValue(ctx, res); return JS_ThrowOutOfMemory(ctx); } return JS_CompactBigInt(ctx, res); } } /* free the bf_t allocated by JS_ToBigInt */ static void JS_FreeBigInt(JSContext *ctx, bf_t *a, bf_t *buf) { if (a == buf) { bf_delete(a); } else { JSBigFloat *p = (JSBigFloat *)((uint8_t *)a - offsetof(JSBigFloat, num)); JS_FreeValue(ctx, JS_MKPTR(JS_TAG_BIG_FLOAT, p)); } } /* XXX: merge with JS_ToInt64Free with a specific flag */ static int JS_ToBigInt64Free(JSContext *ctx, int64_t *pres, JSValue val) { bf_t a_s, *a; a = JS_ToBigIntFree(ctx, &a_s, val); if (!a) { *pres = 0; return -1; } bf_get_int64(pres, a, BF_GET_INT_MOD); JS_FreeBigInt(ctx, a, &a_s); return 0; } int JS_ToBigInt64(JSContext *ctx, int64_t *pres, JSValueConst val) { return JS_ToBigInt64Free(ctx, pres, JS_DupValue(ctx, val)); } static JSBigFloat *js_new_bf(JSContext *ctx) { JSBigFloat *p; p = js_malloc(ctx, sizeof(*p)); if (!p) return NULL; p->header.ref_count = 1; bf_init(ctx->bf_ctx, &p->num); return p; } static JSValue JS_NewBigFloat(JSContext *ctx) { JSBigFloat *p; p = js_malloc(ctx, sizeof(*p)); if (!p) return JS_EXCEPTION; p->header.ref_count = 1; bf_init(ctx->bf_ctx, &p->num); return JS_MKPTR(JS_TAG_BIG_FLOAT, p); } static JSValue JS_NewBigDecimal(JSContext *ctx) { JSBigDecimal *p; p = js_malloc(ctx, sizeof(*p)); if (!p) return JS_EXCEPTION; p->header.ref_count = 1; bfdec_init(ctx->bf_ctx, &p->num); return JS_MKPTR(JS_TAG_BIG_DECIMAL, p); } static JSValue JS_NewBigInt(JSContext *ctx) { JSBigFloat *p; p = js_malloc(ctx, sizeof(*p)); if (!p) return JS_EXCEPTION; p->header.ref_count = 1; bf_init(ctx->bf_ctx, &p->num); return JS_MKPTR(JS_TAG_BIG_INT, p); } static JSValue JS_CompactBigInt1(JSContext *ctx, JSValue val, BOOL convert_to_safe_integer) { int64_t v; bf_t *a; if (JS_VALUE_GET_TAG(val) != JS_TAG_BIG_INT) return val; /* fail safe */ a = JS_GetBigInt(val); if (convert_to_safe_integer && bf_get_int64(&v, a, 0) == 0 && v >= -MAX_SAFE_INTEGER && v <= MAX_SAFE_INTEGER) { JS_FreeValue(ctx, val); return JS_NewInt64(ctx, v); } else if (a->expn == BF_EXP_ZERO && a->sign) { JSBigFloat *p = JS_VALUE_GET_PTR(val); assert(p->header.ref_count == 1); a->sign = 0; } return val; } /* Convert the big int to a safe integer if in math mode. normalize the zero representation. Could also be used to convert the bigint to a short bigint value. The reference count of the value must be 1. Cannot fail */ static JSValue JS_CompactBigInt(JSContext *ctx, JSValue val) { return JS_CompactBigInt1(ctx, val, is_math_mode(ctx)); } /* must be kept in sync with JSOverloadableOperatorEnum */ /* XXX: use atoms ? */ static const char js_overloadable_operator_names[JS_OVOP_COUNT][4] = { "+", "-", "*", "/", "%", "**", "|", "&", "^", "<<", ">>", ">>>", "==", "<", "pos", "neg", "++", "--", "~", }; static int get_ovop_from_opcode(OPCodeEnum op) { switch(op) { case OP_add: return JS_OVOP_ADD; case OP_sub: return JS_OVOP_SUB; case OP_mul: return JS_OVOP_MUL; case OP_div: return JS_OVOP_DIV; case OP_mod: case OP_math_mod: return JS_OVOP_MOD; case OP_pow: return JS_OVOP_POW; case OP_or: return JS_OVOP_OR; case OP_and: return JS_OVOP_AND; case OP_xor: return JS_OVOP_XOR; case OP_shl: return JS_OVOP_SHL; case OP_sar: return JS_OVOP_SAR; case OP_shr: return JS_OVOP_SHR; case OP_eq: case OP_neq: return JS_OVOP_EQ; case OP_lt: case OP_lte: case OP_gt: case OP_gte: return JS_OVOP_LESS; case OP_plus: return JS_OVOP_POS; case OP_neg: return JS_OVOP_NEG; case OP_inc: return JS_OVOP_INC; case OP_dec: return JS_OVOP_DEC; default: abort(); } } /* return NULL if not present */ static JSObject *find_binary_op(JSBinaryOperatorDef *def, uint32_t operator_index, JSOverloadableOperatorEnum op) { JSBinaryOperatorDefEntry *ent; int i; for(i = 0; i < def->count; i++) { ent = &def->tab[i]; if (ent->operator_index == operator_index) return ent->ops[op]; } return NULL; } /* return -1 if exception, 0 if no operator overloading, 1 if overloaded operator called */ static __exception int js_call_binary_op_fallback(JSContext *ctx, JSValue *pret, JSValueConst op1, JSValueConst op2, OPCodeEnum op, BOOL is_numeric, int hint) { JSValue opset1_obj, opset2_obj, method, ret, new_op1, new_op2; JSOperatorSetData *opset1, *opset2; JSOverloadableOperatorEnum ovop; JSObject *p; JSValueConst args[2]; if (!ctx->allow_operator_overloading) return 0; opset2_obj = JS_UNDEFINED; opset1_obj = JS_GetProperty(ctx, op1, JS_ATOM_Symbol_operatorSet); if (JS_IsException(opset1_obj)) goto exception; if (JS_IsUndefined(opset1_obj)) return 0; opset1 = JS_GetOpaque2(ctx, opset1_obj, JS_CLASS_OPERATOR_SET); if (!opset1) goto exception; opset2_obj = JS_GetProperty(ctx, op2, JS_ATOM_Symbol_operatorSet); if (JS_IsException(opset2_obj)) goto exception; if (JS_IsUndefined(opset2_obj)) { JS_FreeValue(ctx, opset1_obj); return 0; } opset2 = JS_GetOpaque2(ctx, opset2_obj, JS_CLASS_OPERATOR_SET); if (!opset2) goto exception; if (opset1->is_primitive && opset2->is_primitive) { JS_FreeValue(ctx, opset1_obj); JS_FreeValue(ctx, opset2_obj); return 0; } ovop = get_ovop_from_opcode(op); if (opset1->operator_counter == opset2->operator_counter) { p = opset1->self_ops[ovop]; } else if (opset1->operator_counter > opset2->operator_counter) { p = find_binary_op(&opset1->left, opset2->operator_counter, ovop); } else { p = find_binary_op(&opset2->right, opset1->operator_counter, ovop); } if (!p) { JS_ThrowTypeError(ctx, "operator %s: no function defined", js_overloadable_operator_names[ovop]); goto exception; } if (opset1->is_primitive) { if (is_numeric) { new_op1 = JS_ToNumeric(ctx, op1); } else { new_op1 = JS_ToPrimitive(ctx, op1, hint); } if (JS_IsException(new_op1)) goto exception; } else { new_op1 = JS_DupValue(ctx, op1); } if (opset2->is_primitive) { if (is_numeric) { new_op2 = JS_ToNumeric(ctx, op2); } else { new_op2 = JS_ToPrimitive(ctx, op2, hint); } if (JS_IsException(new_op2)) { JS_FreeValue(ctx, new_op1); goto exception; } } else { new_op2 = JS_DupValue(ctx, op2); } /* XXX: could apply JS_ToPrimitive() if primitive type so that the operator function does not get a value object */ method = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); if (ovop == JS_OVOP_LESS && (op == OP_lte || op == OP_gt)) { args[0] = new_op2; args[1] = new_op1; } else { args[0] = new_op1; args[1] = new_op2; } ret = JS_CallFree(ctx, method, JS_UNDEFINED, 2, args); JS_FreeValue(ctx, new_op1); JS_FreeValue(ctx, new_op2); if (JS_IsException(ret)) goto exception; if (ovop == JS_OVOP_EQ) { BOOL res = JS_ToBoolFree(ctx, ret); if (op == OP_neq) res ^= 1; ret = JS_NewBool(ctx, res); } else if (ovop == JS_OVOP_LESS) { if (JS_IsUndefined(ret)) { ret = JS_FALSE; } else { BOOL res = JS_ToBoolFree(ctx, ret); if (op == OP_lte || op == OP_gte) res ^= 1; ret = JS_NewBool(ctx, res); } } JS_FreeValue(ctx, opset1_obj); JS_FreeValue(ctx, opset2_obj); *pret = ret; return 1; exception: JS_FreeValue(ctx, opset1_obj); JS_FreeValue(ctx, opset2_obj); *pret = JS_UNDEFINED; return -1; } /* try to call the operation on the operatorSet field of 'obj'. Only used for "/" and "**" on the BigInt prototype in math mode */ static __exception int js_call_binary_op_simple(JSContext *ctx, JSValue *pret, JSValueConst obj, JSValueConst op1, JSValueConst op2, OPCodeEnum op) { JSValue opset1_obj, method, ret, new_op1, new_op2; JSOperatorSetData *opset1; JSOverloadableOperatorEnum ovop; JSObject *p; JSValueConst args[2]; opset1_obj = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_operatorSet); if (JS_IsException(opset1_obj)) goto exception; if (JS_IsUndefined(opset1_obj)) return 0; opset1 = JS_GetOpaque2(ctx, opset1_obj, JS_CLASS_OPERATOR_SET); if (!opset1) goto exception; ovop = get_ovop_from_opcode(op); p = opset1->self_ops[ovop]; if (!p) { JS_FreeValue(ctx, opset1_obj); return 0; } new_op1 = JS_ToNumeric(ctx, op1); if (JS_IsException(new_op1)) goto exception; new_op2 = JS_ToNumeric(ctx, op2); if (JS_IsException(new_op2)) { JS_FreeValue(ctx, new_op1); goto exception; } method = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); args[0] = new_op1; args[1] = new_op2; ret = JS_CallFree(ctx, method, JS_UNDEFINED, 2, args); JS_FreeValue(ctx, new_op1); JS_FreeValue(ctx, new_op2); if (JS_IsException(ret)) goto exception; JS_FreeValue(ctx, opset1_obj); *pret = ret; return 1; exception: JS_FreeValue(ctx, opset1_obj); *pret = JS_UNDEFINED; return -1; } /* return -1 if exception, 0 if no operator overloading, 1 if overloaded operator called */ static __exception int js_call_unary_op_fallback(JSContext *ctx, JSValue *pret, JSValueConst op1, OPCodeEnum op) { JSValue opset1_obj, method, ret; JSOperatorSetData *opset1; JSOverloadableOperatorEnum ovop; JSObject *p; if (!ctx->allow_operator_overloading) return 0; opset1_obj = JS_GetProperty(ctx, op1, JS_ATOM_Symbol_operatorSet); if (JS_IsException(opset1_obj)) goto exception; if (JS_IsUndefined(opset1_obj)) return 0; opset1 = JS_GetOpaque2(ctx, opset1_obj, JS_CLASS_OPERATOR_SET); if (!opset1) goto exception; if (opset1->is_primitive) { JS_FreeValue(ctx, opset1_obj); return 0; } ovop = get_ovop_from_opcode(op); p = opset1->self_ops[ovop]; if (!p) { JS_ThrowTypeError(ctx, "no overloaded operator %s", js_overloadable_operator_names[ovop]); goto exception; } method = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p)); ret = JS_CallFree(ctx, method, JS_UNDEFINED, 1, &op1); if (JS_IsException(ret)) goto exception; JS_FreeValue(ctx, opset1_obj); *pret = ret; return 1; exception: JS_FreeValue(ctx, opset1_obj); *pret = JS_UNDEFINED; return -1; } static JSValue throw_bf_exception(JSContext *ctx, int status) { const char *str; if (status & BF_ST_MEM_ERROR) return JS_ThrowOutOfMemory(ctx); if (status & BF_ST_DIVIDE_ZERO) { str = "division by zero"; } else if (status & BF_ST_INVALID_OP) { str = "invalid operation"; } else { str = "integer overflow"; } return JS_ThrowRangeError(ctx, "%s", str); } static int js_unary_arith_bigint(JSContext *ctx, JSValue *pres, OPCodeEnum op, JSValue op1) { bf_t a_s, *r, *a; int ret, v; JSValue res; if (op == OP_plus && !is_math_mode(ctx)) { JS_ThrowTypeError(ctx, "bigint argument with unary +"); JS_FreeValue(ctx, op1); return -1; } res = JS_NewBigInt(ctx); if (JS_IsException(res)) { JS_FreeValue(ctx, op1); return -1; } r = JS_GetBigInt(res); a = JS_ToBigInt(ctx, &a_s, op1); ret = 0; switch(op) { case OP_inc: case OP_dec: v = 2 * (op - OP_dec) - 1; ret = bf_add_si(r, a, v, BF_PREC_INF, BF_RNDZ); break; case OP_plus: ret = bf_set(r, a); break; case OP_neg: ret = bf_set(r, a); bf_neg(r); break; case OP_not: ret = bf_add_si(r, a, 1, BF_PREC_INF, BF_RNDZ); bf_neg(r); break; default: abort(); } JS_FreeBigInt(ctx, a, &a_s); JS_FreeValue(ctx, op1); if (unlikely(ret)) { JS_FreeValue(ctx, res); throw_bf_exception(ctx, ret); return -1; } res = JS_CompactBigInt(ctx, res); *pres = res; return 0; } static int js_unary_arith_bigfloat(JSContext *ctx, JSValue *pres, OPCodeEnum op, JSValue op1) { bf_t a_s, *r, *a; int ret, v; JSValue res; if (op == OP_plus && !is_math_mode(ctx)) { JS_ThrowTypeError(ctx, "bigfloat argument with unary +"); JS_FreeValue(ctx, op1); return -1; } res = JS_NewBigFloat(ctx); if (JS_IsException(res)) { JS_FreeValue(ctx, op1); return -1; } r = JS_GetBigFloat(res); a = JS_ToBigFloat(ctx, &a_s, op1); ret = 0; switch(op) { case OP_inc: case OP_dec: v = 2 * (op - OP_dec) - 1; ret = bf_add_si(r, a, v, ctx->fp_env.prec, ctx->fp_env.flags); break; case OP_plus: ret = bf_set(r, a); break; case OP_neg: ret = bf_set(r, a); bf_neg(r); break; default: abort(); } if (a == &a_s) bf_delete(a); JS_FreeValue(ctx, op1); if (unlikely(ret & BF_ST_MEM_ERROR)) { JS_FreeValue(ctx, res); throw_bf_exception(ctx, ret); return -1; } *pres = res; return 0; } static int js_unary_arith_bigdecimal(JSContext *ctx, JSValue *pres, OPCodeEnum op, JSValue op1) { bfdec_t *r, *a; int ret, v; JSValue res; if (op == OP_plus && !is_math_mode(ctx)) { JS_ThrowTypeError(ctx, "bigdecimal argument with unary +"); JS_FreeValue(ctx, op1); return -1; } res = JS_NewBigDecimal(ctx); if (JS_IsException(res)) { JS_FreeValue(ctx, op1); return -1; } r = JS_GetBigDecimal(res); a = JS_ToBigDecimal(ctx, op1); ret = 0; switch(op) { case OP_inc: case OP_dec: v = 2 * (op - OP_dec) - 1; ret = bfdec_add_si(r, a, v, BF_PREC_INF, BF_RNDZ); break; case OP_plus: ret = bfdec_set(r, a); break; case OP_neg: ret = bfdec_set(r, a); bfdec_neg(r); break; default: abort(); } JS_FreeValue(ctx, op1); if (unlikely(ret)) { JS_FreeValue(ctx, res); throw_bf_exception(ctx, ret); return -1; } *pres = res; return 0; } static no_inline __exception int js_unary_arith_slow(JSContext *ctx, JSValue *sp, OPCodeEnum op) { JSValue op1, val; int v, ret; uint32_t tag; op1 = sp[-1]; /* fast path for float64 */ if (JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(op1))) goto handle_float64; if (JS_IsObject(op1)) { ret = js_call_unary_op_fallback(ctx, &val, op1, op); if (ret < 0) return -1; if (ret) { JS_FreeValue(ctx, op1); sp[-1] = val; return 0; } } op1 = JS_ToNumericFree(ctx, op1); if (JS_IsException(op1)) goto exception; tag = JS_VALUE_GET_TAG(op1); switch(tag) { case JS_TAG_INT: { int64_t v64; v64 = JS_VALUE_GET_INT(op1); switch(op) { case OP_inc: case OP_dec: v = 2 * (op - OP_dec) - 1; v64 += v; break; case OP_plus: break; case OP_neg: if (v64 == 0) { sp[-1] = __JS_NewFloat64(ctx, -0.0); return 0; } else { v64 = -v64; } break; default: abort(); } sp[-1] = JS_NewInt64(ctx, v64); } break; case JS_TAG_BIG_INT: handle_bigint: if (ctx->rt->bigint_ops.unary_arith(ctx, sp - 1, op, op1)) goto exception; break; case JS_TAG_BIG_FLOAT: if (ctx->rt->bigfloat_ops.unary_arith(ctx, sp - 1, op, op1)) goto exception; break; case JS_TAG_BIG_DECIMAL: if (ctx->rt->bigdecimal_ops.unary_arith(ctx, sp - 1, op, op1)) goto exception; break; default: handle_float64: { double d; if (is_math_mode(ctx)) goto handle_bigint; d = JS_VALUE_GET_FLOAT64(op1); switch(op) { case OP_inc: case OP_dec: v = 2 * (op - OP_dec) - 1; d += v; break; case OP_plus: break; case OP_neg: d = -d; break; default: abort(); } sp[-1] = __JS_NewFloat64(ctx, d); } break; } return 0; exception: sp[-1] = JS_UNDEFINED; return -1; } static __exception int js_post_inc_slow(JSContext *ctx, JSValue *sp, OPCodeEnum op) { JSValue op1; /* XXX: allow custom operators */ op1 = sp[-1]; op1 = JS_ToNumericFree(ctx, op1); if (JS_IsException(op1)) { sp[-1] = JS_UNDEFINED; return -1; } sp[-1] = op1; sp[0] = JS_DupValue(ctx, op1); return js_unary_arith_slow(ctx, sp + 1, op - OP_post_dec + OP_dec); } static no_inline int js_not_slow(JSContext *ctx, JSValue *sp) { JSValue op1, val; int ret; op1 = sp[-1]; if (JS_IsObject(op1)) { ret = js_call_unary_op_fallback(ctx, &val, op1, OP_not); if (ret < 0) return -1; if (ret) { JS_FreeValue(ctx, op1); sp[-1] = val; return 0; } } op1 = JS_ToNumericFree(ctx, op1); if (JS_IsException(op1)) goto exception; if (is_math_mode(ctx) || JS_VALUE_GET_TAG(op1) == JS_TAG_BIG_INT) { if (ctx->rt->bigint_ops.unary_arith(ctx, sp - 1, OP_not, op1)) goto exception; } else { int32_t v1; if (unlikely(JS_ToInt32Free(ctx, &v1, op1))) goto exception; sp[-1] = JS_NewInt32(ctx, ~v1); } return 0; exception: sp[-1] = JS_UNDEFINED; return -1; } static int js_binary_arith_bigfloat(JSContext *ctx, OPCodeEnum op, JSValue *pres, JSValue op1, JSValue op2) { bf_t a_s, b_s, *r, *a, *b; int ret; JSValue res; res = JS_NewBigFloat(ctx); if (JS_IsException(res)) { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); return -1; } r = JS_GetBigFloat(res); a = JS_ToBigFloat(ctx, &a_s, op1); b = JS_ToBigFloat(ctx, &b_s, op2); bf_init(ctx->bf_ctx, r); switch(op) { case OP_add: ret = bf_add(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags); break; case OP_sub: ret = bf_sub(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags); break; case OP_mul: ret = bf_mul(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags); break; case OP_div: ret = bf_div(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags); break; case OP_math_mod: /* Euclidian remainder */ ret = bf_rem(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags, BF_DIVREM_EUCLIDIAN); break; case OP_mod: ret = bf_rem(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags, BF_RNDZ); break; case OP_pow: ret = bf_pow(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags | BF_POW_JS_QUIRKS); break; default: abort(); } if (a == &a_s) bf_delete(a); if (b == &b_s) bf_delete(b); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (unlikely(ret & BF_ST_MEM_ERROR)) { JS_FreeValue(ctx, res); throw_bf_exception(ctx, ret); return -1; } *pres = res; return 0; } static int js_binary_arith_bigint(JSContext *ctx, OPCodeEnum op, JSValue *pres, JSValue op1, JSValue op2) { bf_t a_s, b_s, *r, *a, *b; int ret; JSValue res; res = JS_NewBigInt(ctx); if (JS_IsException(res)) goto fail; a = JS_ToBigInt(ctx, &a_s, op1); if (!a) goto fail; b = JS_ToBigInt(ctx, &b_s, op2); if (!b) { JS_FreeBigInt(ctx, a, &a_s); goto fail; } r = JS_GetBigInt(res); ret = 0; switch(op) { case OP_add: ret = bf_add(r, a, b, BF_PREC_INF, BF_RNDZ); break; case OP_sub: ret = bf_sub(r, a, b, BF_PREC_INF, BF_RNDZ); break; case OP_mul: ret = bf_mul(r, a, b, BF_PREC_INF, BF_RNDZ); break; case OP_div: if (!is_math_mode(ctx)) { bf_t rem_s, *rem = &rem_s; bf_init(ctx->bf_ctx, rem); ret = bf_divrem(r, rem, a, b, BF_PREC_INF, BF_RNDZ, BF_RNDZ); bf_delete(rem); } else { goto math_mode_div_pow; } break; case OP_math_mod: /* Euclidian remainder */ ret = bf_rem(r, a, b, BF_PREC_INF, BF_RNDZ, BF_DIVREM_EUCLIDIAN) & BF_ST_INVALID_OP; break; case OP_mod: ret = bf_rem(r, a, b, BF_PREC_INF, BF_RNDZ, BF_RNDZ) & BF_ST_INVALID_OP; break; case OP_pow: if (b->sign) { if (!is_math_mode(ctx)) { ret = BF_ST_INVALID_OP; } else { math_mode_div_pow: JS_FreeValue(ctx, res); ret = js_call_binary_op_simple(ctx, &res, ctx->class_proto[JS_CLASS_BIG_INT], op1, op2, op); if (ret != 0) { JS_FreeBigInt(ctx, a, &a_s); JS_FreeBigInt(ctx, b, &b_s); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (ret < 0) { return -1; } else { *pres = res; return 0; } } /* if no BigInt power operator defined, return a bigfloat */ res = JS_NewBigFloat(ctx); if (JS_IsException(res)) { JS_FreeBigInt(ctx, a, &a_s); JS_FreeBigInt(ctx, b, &b_s); goto fail; } r = JS_GetBigFloat(res); if (op == OP_div) { ret = bf_div(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags) & BF_ST_MEM_ERROR; } else { ret = bf_pow(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags | BF_POW_JS_QUIRKS) & BF_ST_MEM_ERROR; } JS_FreeBigInt(ctx, a, &a_s); JS_FreeBigInt(ctx, b, &b_s); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (unlikely(ret)) { JS_FreeValue(ctx, res); throw_bf_exception(ctx, ret); return -1; } *pres = res; return 0; } } else { ret = bf_pow(r, a, b, BF_PREC_INF, BF_RNDZ | BF_POW_JS_QUIRKS); } break; /* logical operations */ case OP_shl: case OP_sar: { slimb_t v2; #if LIMB_BITS == 32 bf_get_int32(&v2, b, 0); if (v2 == INT32_MIN) v2 = INT32_MIN + 1; #else bf_get_int64(&v2, b, 0); if (v2 == INT64_MIN) v2 = INT64_MIN + 1; #endif if (op == OP_sar) v2 = -v2; ret = bf_set(r, a); ret |= bf_mul_2exp(r, v2, BF_PREC_INF, BF_RNDZ); if (v2 < 0) { ret |= bf_rint(r, BF_RNDD) & (BF_ST_OVERFLOW | BF_ST_MEM_ERROR); } } break; case OP_and: ret = bf_logic_and(r, a, b); break; case OP_or: ret = bf_logic_or(r, a, b); break; case OP_xor: ret = bf_logic_xor(r, a, b); break; default: abort(); } JS_FreeBigInt(ctx, a, &a_s); JS_FreeBigInt(ctx, b, &b_s); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (unlikely(ret)) { JS_FreeValue(ctx, res); throw_bf_exception(ctx, ret); return -1; } *pres = JS_CompactBigInt(ctx, res); return 0; fail: JS_FreeValue(ctx, res); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); return -1; } /* b must be a positive integer */ static int js_bfdec_pow(bfdec_t *r, const bfdec_t *a, const bfdec_t *b) { bfdec_t b1; int32_t b2; int ret; bfdec_init(b->ctx, &b1); ret = bfdec_set(&b1, b); if (ret) { bfdec_delete(&b1); return ret; } ret = bfdec_rint(&b1, BF_RNDZ); if (ret) { bfdec_delete(&b1); return BF_ST_INVALID_OP; /* must be an integer */ } ret = bfdec_get_int32(&b2, &b1); bfdec_delete(&b1); if (ret) return ret; /* overflow */ if (b2 < 0) return BF_ST_INVALID_OP; /* must be positive */ return bfdec_pow_ui(r, a, b2); } static int js_binary_arith_bigdecimal(JSContext *ctx, OPCodeEnum op, JSValue *pres, JSValue op1, JSValue op2) { bfdec_t *r, *a, *b; int ret; JSValue res; res = JS_NewBigDecimal(ctx); if (JS_IsException(res)) goto fail; r = JS_GetBigDecimal(res); a = JS_ToBigDecimal(ctx, op1); if (!a) goto fail; b = JS_ToBigDecimal(ctx, op2); if (!b) goto fail; switch(op) { case OP_add: ret = bfdec_add(r, a, b, BF_PREC_INF, BF_RNDZ); break; case OP_sub: ret = bfdec_sub(r, a, b, BF_PREC_INF, BF_RNDZ); break; case OP_mul: ret = bfdec_mul(r, a, b, BF_PREC_INF, BF_RNDZ); break; case OP_div: ret = bfdec_div(r, a, b, BF_PREC_INF, BF_RNDZ); break; case OP_math_mod: /* Euclidian remainder */ ret = bfdec_rem(r, a, b, BF_PREC_INF, BF_RNDZ, BF_DIVREM_EUCLIDIAN); break; case OP_mod: ret = bfdec_rem(r, a, b, BF_PREC_INF, BF_RNDZ, BF_RNDZ); break; case OP_pow: ret = js_bfdec_pow(r, a, b); break; default: abort(); } JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (unlikely(ret)) { JS_FreeValue(ctx, res); throw_bf_exception(ctx, ret); return -1; } *pres = res; return 0; fail: JS_FreeValue(ctx, res); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); return -1; } static no_inline __exception int js_binary_arith_slow(JSContext *ctx, JSValue *sp, OPCodeEnum op) { JSValue op1, op2, res; uint32_t tag1, tag2; int ret; double d1, d2; op1 = sp[-2]; op2 = sp[-1]; tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); /* fast path for float operations */ if (tag1 == JS_TAG_FLOAT64 && tag2 == JS_TAG_FLOAT64) { d1 = JS_VALUE_GET_FLOAT64(op1); d2 = JS_VALUE_GET_FLOAT64(op2); goto handle_float64; } /* try to call an overloaded operator */ if ((tag1 == JS_TAG_OBJECT && (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) || (tag2 == JS_TAG_OBJECT && (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) { ret = js_call_binary_op_fallback(ctx, &res, op1, op2, op, TRUE, 0); if (ret != 0) { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (ret < 0) { goto exception; } else { sp[-2] = res; return 0; } } } op1 = JS_ToNumericFree(ctx, op1); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToNumericFree(ctx, op2); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) { int32_t v1, v2; int64_t v; v1 = JS_VALUE_GET_INT(op1); v2 = JS_VALUE_GET_INT(op2); switch(op) { case OP_sub: v = (int64_t)v1 - (int64_t)v2; break; case OP_mul: v = (int64_t)v1 * (int64_t)v2; if (is_math_mode(ctx) && (v < -MAX_SAFE_INTEGER || v > MAX_SAFE_INTEGER)) goto handle_bigint; if (v == 0 && (v1 | v2) < 0) { sp[-2] = __JS_NewFloat64(ctx, -0.0); return 0; } break; case OP_div: if (is_math_mode(ctx)) goto handle_bigint; sp[-2] = __JS_NewFloat64(ctx, (double)v1 / (double)v2); return 0; case OP_math_mod: if (unlikely(v2 == 0)) { throw_bf_exception(ctx, BF_ST_DIVIDE_ZERO); goto exception; } v = (int64_t)v1 % (int64_t)v2; if (v < 0) { if (v2 < 0) v -= v2; else v += v2; } break; case OP_mod: if (v1 < 0 || v2 <= 0) { sp[-2] = JS_NewFloat64(ctx, fmod(v1, v2)); return 0; } else { v = (int64_t)v1 % (int64_t)v2; } break; case OP_pow: if (!is_math_mode(ctx)) { sp[-2] = JS_NewFloat64(ctx, js_pow(v1, v2)); return 0; } else { goto handle_bigint; } break; default: abort(); } sp[-2] = JS_NewInt64(ctx, v); } else if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) { if (ctx->rt->bigdecimal_ops.binary_arith(ctx, op, sp - 2, op1, op2)) goto exception; } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) { if (ctx->rt->bigfloat_ops.binary_arith(ctx, op, sp - 2, op1, op2)) goto exception; } else if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) { handle_bigint: if (ctx->rt->bigint_ops.binary_arith(ctx, op, sp - 2, op1, op2)) goto exception; } else { double dr; /* float64 result */ if (JS_ToFloat64Free(ctx, &d1, op1)) { JS_FreeValue(ctx, op2); goto exception; } if (JS_ToFloat64Free(ctx, &d2, op2)) goto exception; handle_float64: if (is_math_mode(ctx) && is_safe_integer(d1) && is_safe_integer(d2)) goto handle_bigint; switch(op) { case OP_sub: dr = d1 - d2; break; case OP_mul: dr = d1 * d2; break; case OP_div: dr = d1 / d2; break; case OP_mod: dr = fmod(d1, d2); break; case OP_math_mod: d2 = fabs(d2); dr = fmod(d1, d2); /* XXX: loss of accuracy if dr < 0 */ if (dr < 0) dr += d2; break; case OP_pow: dr = js_pow(d1, d2); break; default: abort(); } sp[-2] = __JS_NewFloat64(ctx, dr); } return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static no_inline __exception int js_add_slow(JSContext *ctx, JSValue *sp) { JSValue op1, op2, res; uint32_t tag1, tag2; int ret; op1 = sp[-2]; op2 = sp[-1]; tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); /* fast path for float64 */ if (tag1 == JS_TAG_FLOAT64 && tag2 == JS_TAG_FLOAT64) { double d1, d2; d1 = JS_VALUE_GET_FLOAT64(op1); d2 = JS_VALUE_GET_FLOAT64(op2); sp[-2] = __JS_NewFloat64(ctx, d1 + d2); return 0; } if (tag1 == JS_TAG_OBJECT || tag2 == JS_TAG_OBJECT) { /* try to call an overloaded operator */ if ((tag1 == JS_TAG_OBJECT && (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED && tag2 != JS_TAG_STRING)) || (tag2 == JS_TAG_OBJECT && (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED && tag1 != JS_TAG_STRING))) { ret = js_call_binary_op_fallback(ctx, &res, op1, op2, OP_add, FALSE, HINT_NONE); if (ret != 0) { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (ret < 0) { goto exception; } else { sp[-2] = res; return 0; } } } op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); } if (tag1 == JS_TAG_STRING || tag2 == JS_TAG_STRING) { sp[-2] = JS_ConcatString(ctx, op1, op2); if (JS_IsException(sp[-2])) goto exception; return 0; } op1 = JS_ToNumericFree(ctx, op1); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToNumericFree(ctx, op2); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) { int32_t v1, v2; int64_t v; v1 = JS_VALUE_GET_INT(op1); v2 = JS_VALUE_GET_INT(op2); v = (int64_t)v1 + (int64_t)v2; sp[-2] = JS_NewInt64(ctx, v); } else if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) { if (ctx->rt->bigdecimal_ops.binary_arith(ctx, OP_add, sp - 2, op1, op2)) goto exception; } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) { if (ctx->rt->bigfloat_ops.binary_arith(ctx, OP_add, sp - 2, op1, op2)) goto exception; } else if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) { handle_bigint: if (ctx->rt->bigint_ops.binary_arith(ctx, OP_add, sp - 2, op1, op2)) goto exception; } else { double d1, d2; /* float64 result */ if (JS_ToFloat64Free(ctx, &d1, op1)) { JS_FreeValue(ctx, op2); goto exception; } if (JS_ToFloat64Free(ctx, &d2, op2)) goto exception; if (is_math_mode(ctx) && is_safe_integer(d1) && is_safe_integer(d2)) goto handle_bigint; sp[-2] = __JS_NewFloat64(ctx, d1 + d2); } return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static no_inline __exception int js_binary_logic_slow(JSContext *ctx, JSValue *sp, OPCodeEnum op) { JSValue op1, op2, res; int ret; uint32_t tag1, tag2; uint32_t v1, v2, r; op1 = sp[-2]; op2 = sp[-1]; tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); /* try to call an overloaded operator */ if ((tag1 == JS_TAG_OBJECT && (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) || (tag2 == JS_TAG_OBJECT && (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) { ret = js_call_binary_op_fallback(ctx, &res, op1, op2, op, TRUE, 0); if (ret != 0) { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (ret < 0) { goto exception; } else { sp[-2] = res; return 0; } } } op1 = JS_ToNumericFree(ctx, op1); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToNumericFree(ctx, op2); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } if (is_math_mode(ctx)) goto bigint_op; tag1 = JS_VALUE_GET_TAG(op1); tag2 = JS_VALUE_GET_TAG(op2); if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) { if (tag1 != tag2) { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); JS_ThrowTypeError(ctx, "both operands must be bigint"); goto exception; } else { bigint_op: if (ctx->rt->bigint_ops.binary_arith(ctx, op, sp - 2, op1, op2)) goto exception; } } else { if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v1, op1))) { JS_FreeValue(ctx, op2); goto exception; } if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v2, op2))) goto exception; switch(op) { case OP_shl: r = v1 << (v2 & 0x1f); break; case OP_sar: r = (int)v1 >> (v2 & 0x1f); break; case OP_and: r = v1 & v2; break; case OP_or: r = v1 | v2; break; case OP_xor: r = v1 ^ v2; break; default: abort(); } sp[-2] = JS_NewInt32(ctx, r); } return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } /* Note: also used for bigint */ static int js_compare_bigfloat(JSContext *ctx, OPCodeEnum op, JSValue op1, JSValue op2) { bf_t a_s, b_s, *a, *b; int res; a = JS_ToBigFloat(ctx, &a_s, op1); if (!a) { JS_FreeValue(ctx, op2); return -1; } b = JS_ToBigFloat(ctx, &b_s, op2); if (!b) { if (a == &a_s) bf_delete(a); JS_FreeValue(ctx, op1); return -1; } switch(op) { case OP_lt: res = bf_cmp_lt(a, b); /* if NaN return false */ break; case OP_lte: res = bf_cmp_le(a, b); /* if NaN return false */ break; case OP_gt: res = bf_cmp_lt(b, a); /* if NaN return false */ break; case OP_gte: res = bf_cmp_le(b, a); /* if NaN return false */ break; case OP_eq: res = bf_cmp_eq(a, b); /* if NaN return false */ break; default: abort(); } if (a == &a_s) bf_delete(a); if (b == &b_s) bf_delete(b); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); return res; } static int js_compare_bigdecimal(JSContext *ctx, OPCodeEnum op, JSValue op1, JSValue op2) { bfdec_t *a, *b; int res; /* Note: binary floats are converted to bigdecimal with toString(). It is not mathematically correct but is consistent with the BigDecimal() constructor behavior */ op1 = JS_ToBigDecimalFree(ctx, op1, TRUE); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); return -1; } op2 = JS_ToBigDecimalFree(ctx, op2, TRUE); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); return -1; } a = JS_ToBigDecimal(ctx, op1); b = JS_ToBigDecimal(ctx, op2); switch(op) { case OP_lt: res = bfdec_cmp_lt(a, b); /* if NaN return false */ break; case OP_lte: res = bfdec_cmp_le(a, b); /* if NaN return false */ break; case OP_gt: res = bfdec_cmp_lt(b, a); /* if NaN return false */ break; case OP_gte: res = bfdec_cmp_le(b, a); /* if NaN return false */ break; case OP_eq: res = bfdec_cmp_eq(a, b); /* if NaN return false */ break; default: abort(); } JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); return res; } static no_inline int js_relational_slow(JSContext *ctx, JSValue *sp, OPCodeEnum op) { JSValue op1, op2, ret; int res; uint32_t tag1, tag2; op1 = sp[-2]; op2 = sp[-1]; tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); /* try to call an overloaded operator */ if ((tag1 == JS_TAG_OBJECT && (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) || (tag2 == JS_TAG_OBJECT && (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) { res = js_call_binary_op_fallback(ctx, &ret, op1, op2, op, FALSE, HINT_NUMBER); if (res != 0) { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (res < 0) { goto exception; } else { sp[-2] = ret; return 0; } } } op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NUMBER); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NUMBER); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); if (tag1 == JS_TAG_STRING && tag2 == JS_TAG_STRING) { JSString *p1, *p2; p1 = JS_VALUE_GET_STRING(op1); p2 = JS_VALUE_GET_STRING(op2); res = js_string_compare(ctx, p1, p2); switch(op) { case OP_lt: res = (res < 0); break; case OP_lte: res = (res <= 0); break; case OP_gt: res = (res > 0); break; default: case OP_gte: res = (res >= 0); break; } JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); } else if ((tag1 <= JS_TAG_NULL || tag1 == JS_TAG_FLOAT64) && (tag2 <= JS_TAG_NULL || tag2 == JS_TAG_FLOAT64)) { /* can use floating point comparison */ double d1, d2; if (tag1 == JS_TAG_FLOAT64) { d1 = JS_VALUE_GET_FLOAT64(op1); } else { d1 = JS_VALUE_GET_INT(op1); } if (tag2 == JS_TAG_FLOAT64) { d2 = JS_VALUE_GET_FLOAT64(op2); } else { d2 = JS_VALUE_GET_INT(op2); } switch(op) { case OP_lt: res = (d1 < d2); /* if NaN return false */ break; case OP_lte: res = (d1 <= d2); /* if NaN return false */ break; case OP_gt: res = (d1 > d2); /* if NaN return false */ break; default: case OP_gte: res = (d1 >= d2); /* if NaN return false */ break; } } else { if (((tag1 == JS_TAG_BIG_INT && tag2 == JS_TAG_STRING) || (tag2 == JS_TAG_BIG_INT && tag1 == JS_TAG_STRING)) && !is_math_mode(ctx)) { if (tag1 == JS_TAG_STRING) { op1 = JS_StringToBigInt(ctx, op1); if (JS_VALUE_GET_TAG(op1) != JS_TAG_BIG_INT) goto invalid_bigint_string; } if (tag2 == JS_TAG_STRING) { op2 = JS_StringToBigInt(ctx, op2); if (JS_VALUE_GET_TAG(op2) != JS_TAG_BIG_INT) { invalid_bigint_string: JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); res = FALSE; goto done; } } } else { op1 = JS_ToNumericFree(ctx, op1); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToNumericFree(ctx, op2); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } } if (JS_VALUE_GET_TAG(op1) == JS_TAG_BIG_DECIMAL || JS_VALUE_GET_TAG(op2) == JS_TAG_BIG_DECIMAL) { res = ctx->rt->bigdecimal_ops.compare(ctx, op, op1, op2); if (res < 0) goto exception; } else if (JS_VALUE_GET_TAG(op1) == JS_TAG_BIG_FLOAT || JS_VALUE_GET_TAG(op2) == JS_TAG_BIG_FLOAT) { res = ctx->rt->bigfloat_ops.compare(ctx, op, op1, op2); if (res < 0) goto exception; } else { res = ctx->rt->bigint_ops.compare(ctx, op, op1, op2); if (res < 0) goto exception; } } done: sp[-2] = JS_NewBool(ctx, res); return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static BOOL tag_is_number(uint32_t tag) { return (tag == JS_TAG_INT || tag == JS_TAG_BIG_INT || tag == JS_TAG_FLOAT64 || tag == JS_TAG_BIG_FLOAT || tag == JS_TAG_BIG_DECIMAL); } static no_inline __exception int js_eq_slow(JSContext *ctx, JSValue *sp, BOOL is_neq) { JSValue op1, op2, ret; int res; uint32_t tag1, tag2; op1 = sp[-2]; op2 = sp[-1]; redo: tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); if (tag_is_number(tag1) && tag_is_number(tag2)) { if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) { res = JS_VALUE_GET_INT(op1) == JS_VALUE_GET_INT(op2); } else if ((tag1 == JS_TAG_FLOAT64 && (tag2 == JS_TAG_INT || tag2 == JS_TAG_FLOAT64)) || (tag2 == JS_TAG_FLOAT64 && (tag1 == JS_TAG_INT || tag1 == JS_TAG_FLOAT64))) { double d1, d2; if (tag1 == JS_TAG_FLOAT64) { d1 = JS_VALUE_GET_FLOAT64(op1); } else { d1 = JS_VALUE_GET_INT(op1); } if (tag2 == JS_TAG_FLOAT64) { d2 = JS_VALUE_GET_FLOAT64(op2); } else { d2 = JS_VALUE_GET_INT(op2); } res = (d1 == d2); } else if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) { res = ctx->rt->bigdecimal_ops.compare(ctx, OP_eq, op1, op2); if (res < 0) goto exception; } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) { res = ctx->rt->bigfloat_ops.compare(ctx, OP_eq, op1, op2); if (res < 0) goto exception; } else { res = ctx->rt->bigint_ops.compare(ctx, OP_eq, op1, op2); if (res < 0) goto exception; } } else if (tag1 == tag2) { if (tag1 == JS_TAG_OBJECT) { /* try the fallback operator */ res = js_call_binary_op_fallback(ctx, &ret, op1, op2, is_neq ? OP_neq : OP_eq, FALSE, HINT_NONE); if (res != 0) { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (res < 0) { goto exception; } else { sp[-2] = ret; return 0; } } } res = js_strict_eq2(ctx, op1, op2, JS_EQ_STRICT); } else if ((tag1 == JS_TAG_NULL && tag2 == JS_TAG_UNDEFINED) || (tag2 == JS_TAG_NULL && tag1 == JS_TAG_UNDEFINED)) { res = TRUE; } else if ((tag1 == JS_TAG_STRING && tag_is_number(tag2)) || (tag2 == JS_TAG_STRING && tag_is_number(tag1))) { if ((tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) && !is_math_mode(ctx)) { if (tag1 == JS_TAG_STRING) { op1 = JS_StringToBigInt(ctx, op1); if (JS_VALUE_GET_TAG(op1) != JS_TAG_BIG_INT) goto invalid_bigint_string; } if (tag2 == JS_TAG_STRING) { op2 = JS_StringToBigInt(ctx, op2); if (JS_VALUE_GET_TAG(op2) != JS_TAG_BIG_INT) { invalid_bigint_string: JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); res = FALSE; goto done; } } } else { op1 = JS_ToNumericFree(ctx, op1); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToNumericFree(ctx, op2); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } } res = js_strict_eq(ctx, op1, op2); } else if (tag1 == JS_TAG_BOOL) { op1 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op1)); goto redo; } else if (tag2 == JS_TAG_BOOL) { op2 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op2)); goto redo; } else if ((tag1 == JS_TAG_OBJECT && (tag_is_number(tag2) || tag2 == JS_TAG_STRING || tag2 == JS_TAG_SYMBOL)) || (tag2 == JS_TAG_OBJECT && (tag_is_number(tag1) || tag1 == JS_TAG_STRING || tag1 == JS_TAG_SYMBOL))) { /* try the fallback operator */ res = js_call_binary_op_fallback(ctx, &ret, op1, op2, is_neq ? OP_neq : OP_eq, FALSE, HINT_NONE); if (res != 0) { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); if (res < 0) { goto exception; } else { sp[-2] = ret; return 0; } } op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } goto redo; } else { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); res = FALSE; } done: sp[-2] = JS_NewBool(ctx, res ^ is_neq); return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static no_inline int js_shr_slow(JSContext *ctx, JSValue *sp) { JSValue op1, op2; uint32_t v1, v2, r; op1 = sp[-2]; op2 = sp[-1]; op1 = JS_ToNumericFree(ctx, op1); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToNumericFree(ctx, op2); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } /* XXX: could forbid >>> in bignum mode */ if (!is_math_mode(ctx) && (JS_VALUE_GET_TAG(op1) == JS_TAG_BIG_INT || JS_VALUE_GET_TAG(op2) == JS_TAG_BIG_INT)) { JS_ThrowTypeError(ctx, "bigint operands are forbidden for >>>"); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); goto exception; } /* cannot give an exception */ JS_ToUint32Free(ctx, &v1, op1); JS_ToUint32Free(ctx, &v2, op2); r = v1 >> (v2 & 0x1f); sp[-2] = JS_NewUint32(ctx, r); return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static JSValue js_mul_pow10_to_float64(JSContext *ctx, const bf_t *a, int64_t exponent) { bf_t r_s, *r = &r_s; double d; int ret; /* always convert to Float64 */ bf_init(ctx->bf_ctx, r); ret = bf_mul_pow_radix(r, a, 10, exponent, 53, bf_set_exp_bits(11) | BF_RNDN | BF_FLAG_SUBNORMAL); bf_get_float64(r, &d, BF_RNDN); bf_delete(r); if (ret & BF_ST_MEM_ERROR) return JS_ThrowOutOfMemory(ctx); else return __JS_NewFloat64(ctx, d); } static no_inline int js_mul_pow10(JSContext *ctx, JSValue *sp) { bf_t a_s, *a, *r; JSValue op1, op2, res; int64_t e; int ret; res = JS_NewBigFloat(ctx); if (JS_IsException(res)) return -1; r = JS_GetBigFloat(res); op1 = sp[-2]; op2 = sp[-1]; a = JS_ToBigFloat(ctx, &a_s, op1); if (!a) return -1; if (JS_IsBigInt(ctx, op2)) { ret = JS_ToBigInt64(ctx, &e, op2); } else { ret = JS_ToInt64(ctx, &e, op2); } if (ret) { if (a == &a_s) bf_delete(a); JS_FreeValue(ctx, res); return -1; } bf_mul_pow_radix(r, a, 10, e, ctx->fp_env.prec, ctx->fp_env.flags); if (a == &a_s) bf_delete(a); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); sp[-2] = res; return 0; } #else /* !CONFIG_BIGNUM */ static JSValue JS_ThrowUnsupportedBigint(JSContext *ctx) { return JS_ThrowTypeError(ctx, "bigint is not supported"); } JSValue JS_NewBigInt64(JSContext *ctx, int64_t v) { return JS_ThrowUnsupportedBigint(ctx); } JSValue JS_NewBigUint64(JSContext *ctx, uint64_t v) { return JS_ThrowUnsupportedBigint(ctx); } int JS_ToBigInt64(JSContext *ctx, int64_t *pres, JSValueConst val) { JS_ThrowUnsupportedBigint(ctx); *pres = 0; return -1; } static no_inline __exception int js_unary_arith_slow(JSContext *ctx, JSValue *sp, OPCodeEnum op) { JSValue op1; double d; op1 = sp[-1]; if (unlikely(JS_ToFloat64Free(ctx, &d, op1))) { sp[-1] = JS_UNDEFINED; return -1; } switch(op) { case OP_inc: d++; break; case OP_dec: d--; break; case OP_plus: break; case OP_neg: d = -d; break; default: abort(); } sp[-1] = JS_NewFloat64(ctx, d); return 0; } /* specific case necessary for correct return value semantics */ static __exception int js_post_inc_slow(JSContext *ctx, JSValue *sp, OPCodeEnum op) { JSValue op1; double d, r; op1 = sp[-1]; if (unlikely(JS_ToFloat64Free(ctx, &d, op1))) { sp[-1] = JS_UNDEFINED; return -1; } r = d + 2 * (op - OP_post_dec) - 1; sp[0] = JS_NewFloat64(ctx, r); sp[-1] = JS_NewFloat64(ctx, d); return 0; } static no_inline __exception int js_binary_arith_slow(JSContext *ctx, JSValue *sp, OPCodeEnum op) { JSValue op1, op2; double d1, d2, r; op1 = sp[-2]; op2 = sp[-1]; if (unlikely(JS_ToFloat64Free(ctx, &d1, op1))) { JS_FreeValue(ctx, op2); goto exception; } if (unlikely(JS_ToFloat64Free(ctx, &d2, op2))) { goto exception; } switch(op) { case OP_sub: r = d1 - d2; break; case OP_mul: r = d1 * d2; break; case OP_div: r = d1 / d2; break; case OP_mod: r = fmod(d1, d2); break; case OP_pow: r = js_pow(d1, d2); break; default: abort(); } sp[-2] = JS_NewFloat64(ctx, r); return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static no_inline __exception int js_add_slow(JSContext *ctx, JSValue *sp) { JSValue op1, op2; uint32_t tag1, tag2; op1 = sp[-2]; op2 = sp[-1]; tag1 = JS_VALUE_GET_TAG(op1); tag2 = JS_VALUE_GET_TAG(op2); if ((tag1 == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag1)) && (tag2 == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag2))) { goto add_numbers; } else { op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } tag1 = JS_VALUE_GET_TAG(op1); tag2 = JS_VALUE_GET_TAG(op2); if (tag1 == JS_TAG_STRING || tag2 == JS_TAG_STRING) { sp[-2] = JS_ConcatString(ctx, op1, op2); if (JS_IsException(sp[-2])) goto exception; } else { double d1, d2; add_numbers: if (JS_ToFloat64Free(ctx, &d1, op1)) { JS_FreeValue(ctx, op2); goto exception; } if (JS_ToFloat64Free(ctx, &d2, op2)) goto exception; sp[-2] = JS_NewFloat64(ctx, d1 + d2); } } return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static no_inline __exception int js_binary_logic_slow(JSContext *ctx, JSValue *sp, OPCodeEnum op) { JSValue op1, op2; uint32_t v1, v2, r; op1 = sp[-2]; op2 = sp[-1]; if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v1, op1))) { JS_FreeValue(ctx, op2); goto exception; } if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v2, op2))) goto exception; switch(op) { case OP_shl: r = v1 << (v2 & 0x1f); break; case OP_sar: r = (int)v1 >> (v2 & 0x1f); break; case OP_and: r = v1 & v2; break; case OP_or: r = v1 | v2; break; case OP_xor: r = v1 ^ v2; break; default: abort(); } sp[-2] = JS_NewInt32(ctx, r); return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static no_inline int js_not_slow(JSContext *ctx, JSValue *sp) { int32_t v1; if (unlikely(JS_ToInt32Free(ctx, &v1, sp[-1]))) { sp[-1] = JS_UNDEFINED; return -1; } sp[-1] = JS_NewInt32(ctx, ~v1); return 0; } static no_inline int js_relational_slow(JSContext *ctx, JSValue *sp, OPCodeEnum op) { JSValue op1, op2; int res; op1 = sp[-2]; op2 = sp[-1]; op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NUMBER); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NUMBER); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } if (JS_VALUE_GET_TAG(op1) == JS_TAG_STRING && JS_VALUE_GET_TAG(op2) == JS_TAG_STRING) { JSString *p1, *p2; p1 = JS_VALUE_GET_STRING(op1); p2 = JS_VALUE_GET_STRING(op2); res = js_string_compare(ctx, p1, p2); JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); switch(op) { case OP_lt: res = (res < 0); break; case OP_lte: res = (res <= 0); break; case OP_gt: res = (res > 0); break; default: case OP_gte: res = (res >= 0); break; } } else { double d1, d2; if (JS_ToFloat64Free(ctx, &d1, op1)) { JS_FreeValue(ctx, op2); goto exception; } if (JS_ToFloat64Free(ctx, &d2, op2)) goto exception; switch(op) { case OP_lt: res = (d1 < d2); /* if NaN return false */ break; case OP_lte: res = (d1 <= d2); /* if NaN return false */ break; case OP_gt: res = (d1 > d2); /* if NaN return false */ break; default: case OP_gte: res = (d1 >= d2); /* if NaN return false */ break; } } sp[-2] = JS_NewBool(ctx, res); return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static no_inline __exception int js_eq_slow(JSContext *ctx, JSValue *sp, BOOL is_neq) { JSValue op1, op2; int tag1, tag2; BOOL res; op1 = sp[-2]; op2 = sp[-1]; redo: tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); if (tag1 == tag2 || (tag1 == JS_TAG_INT && tag2 == JS_TAG_FLOAT64) || (tag2 == JS_TAG_INT && tag1 == JS_TAG_FLOAT64)) { res = js_strict_eq(ctx, op1, op2); } else if ((tag1 == JS_TAG_NULL && tag2 == JS_TAG_UNDEFINED) || (tag2 == JS_TAG_NULL && tag1 == JS_TAG_UNDEFINED)) { res = TRUE; } else if ((tag1 == JS_TAG_STRING && (tag2 == JS_TAG_INT || tag2 == JS_TAG_FLOAT64)) || (tag2 == JS_TAG_STRING && (tag1 == JS_TAG_INT || tag1 == JS_TAG_FLOAT64))) { double d1; double d2; if (JS_ToFloat64Free(ctx, &d1, op1)) { JS_FreeValue(ctx, op2); goto exception; } if (JS_ToFloat64Free(ctx, &d2, op2)) goto exception; res = (d1 == d2); } else if (tag1 == JS_TAG_BOOL) { op1 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op1)); goto redo; } else if (tag2 == JS_TAG_BOOL) { op2 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op2)); goto redo; } else if (tag1 == JS_TAG_OBJECT && (tag2 == JS_TAG_INT || tag2 == JS_TAG_FLOAT64 || tag2 == JS_TAG_STRING || tag2 == JS_TAG_SYMBOL)) { op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE); if (JS_IsException(op1)) { JS_FreeValue(ctx, op2); goto exception; } goto redo; } else if (tag2 == JS_TAG_OBJECT && (tag1 == JS_TAG_INT || tag1 == JS_TAG_FLOAT64 || tag1 == JS_TAG_STRING || tag1 == JS_TAG_SYMBOL)) { op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE); if (JS_IsException(op2)) { JS_FreeValue(ctx, op1); goto exception; } goto redo; } else { JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); res = FALSE; } sp[-2] = JS_NewBool(ctx, res ^ is_neq); return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static no_inline int js_shr_slow(JSContext *ctx, JSValue *sp) { JSValue op1, op2; uint32_t v1, v2, r; op1 = sp[-2]; op2 = sp[-1]; if (unlikely(JS_ToUint32Free(ctx, &v1, op1))) { JS_FreeValue(ctx, op2); goto exception; } if (unlikely(JS_ToUint32Free(ctx, &v2, op2))) goto exception; r = v1 >> (v2 & 0x1f); sp[-2] = JS_NewUint32(ctx, r); return 0; exception: sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } #endif /* !CONFIG_BIGNUM */ /* XXX: Should take JSValueConst arguments */ static BOOL js_strict_eq2(JSContext *ctx, JSValue op1, JSValue op2, JSStrictEqModeEnum eq_mode) { BOOL res; int tag1, tag2; double d1, d2; tag1 = JS_VALUE_GET_NORM_TAG(op1); tag2 = JS_VALUE_GET_NORM_TAG(op2); switch(tag1) { case JS_TAG_BOOL: if (tag1 != tag2) { res = FALSE; } else { res = JS_VALUE_GET_INT(op1) == JS_VALUE_GET_INT(op2); goto done_no_free; } break; case JS_TAG_NULL: case JS_TAG_UNDEFINED: res = (tag1 == tag2); break; case JS_TAG_STRING: { JSString *p1, *p2; if (tag1 != tag2) { res = FALSE; } else { p1 = JS_VALUE_GET_STRING(op1); p2 = JS_VALUE_GET_STRING(op2); res = (js_string_compare(ctx, p1, p2) == 0); } } break; case JS_TAG_SYMBOL: { JSAtomStruct *p1, *p2; if (tag1 != tag2) { res = FALSE; } else { p1 = JS_VALUE_GET_PTR(op1); p2 = JS_VALUE_GET_PTR(op2); res = (p1 == p2); } } break; case JS_TAG_OBJECT: if (tag1 != tag2) res = FALSE; else res = JS_VALUE_GET_OBJ(op1) == JS_VALUE_GET_OBJ(op2); break; case JS_TAG_INT: d1 = JS_VALUE_GET_INT(op1); if (tag2 == JS_TAG_INT) { d2 = JS_VALUE_GET_INT(op2); goto number_test; } else if (tag2 == JS_TAG_FLOAT64) { d2 = JS_VALUE_GET_FLOAT64(op2); goto number_test; } else { res = FALSE; } break; case JS_TAG_FLOAT64: d1 = JS_VALUE_GET_FLOAT64(op1); if (tag2 == JS_TAG_FLOAT64) { d2 = JS_VALUE_GET_FLOAT64(op2); } else if (tag2 == JS_TAG_INT) { d2 = JS_VALUE_GET_INT(op2); } else { res = FALSE; break; } number_test: if (unlikely(eq_mode >= JS_EQ_SAME_VALUE)) { JSFloat64Union u1, u2; /* NaN is not always normalized, so this test is necessary */ if (isnan(d1) || isnan(d2)) { res = isnan(d1) == isnan(d2); } else if (eq_mode == JS_EQ_SAME_VALUE_ZERO) { res = (d1 == d2); /* +0 == -0 */ } else { u1.d = d1; u2.d = d2; res = (u1.u64 == u2.u64); /* +0 != -0 */ } } else { res = (d1 == d2); /* if NaN return false and +0 == -0 */ } goto done_no_free; #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: { bf_t a_s, *a, b_s, *b; if (tag1 != tag2) { res = FALSE; break; } a = JS_ToBigFloat(ctx, &a_s, op1); b = JS_ToBigFloat(ctx, &b_s, op2); res = bf_cmp_eq(a, b); if (a == &a_s) bf_delete(a); if (b == &b_s) bf_delete(b); } break; case JS_TAG_BIG_FLOAT: { JSBigFloat *p1, *p2; const bf_t *a, *b; if (tag1 != tag2) { res = FALSE; break; } p1 = JS_VALUE_GET_PTR(op1); p2 = JS_VALUE_GET_PTR(op2); a = &p1->num; b = &p2->num; if (unlikely(eq_mode >= JS_EQ_SAME_VALUE)) { if (eq_mode == JS_EQ_SAME_VALUE_ZERO && a->expn == BF_EXP_ZERO && b->expn == BF_EXP_ZERO) { res = TRUE; } else { res = (bf_cmp_full(a, b) == 0); } } else { res = bf_cmp_eq(a, b); } } break; case JS_TAG_BIG_DECIMAL: { JSBigDecimal *p1, *p2; const bfdec_t *a, *b; if (tag1 != tag2) { res = FALSE; break; } p1 = JS_VALUE_GET_PTR(op1); p2 = JS_VALUE_GET_PTR(op2); a = &p1->num; b = &p2->num; res = bfdec_cmp_eq(a, b); } break; #endif default: res = FALSE; break; } JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); done_no_free: return res; } static BOOL js_strict_eq(JSContext *ctx, JSValue op1, JSValue op2) { return js_strict_eq2(ctx, op1, op2, JS_EQ_STRICT); } static BOOL js_same_value(JSContext *ctx, JSValueConst op1, JSValueConst op2) { return js_strict_eq2(ctx, JS_DupValue(ctx, op1), JS_DupValue(ctx, op2), JS_EQ_SAME_VALUE); } static BOOL js_same_value_zero(JSContext *ctx, JSValueConst op1, JSValueConst op2) { return js_strict_eq2(ctx, JS_DupValue(ctx, op1), JS_DupValue(ctx, op2), JS_EQ_SAME_VALUE_ZERO); } static no_inline int js_strict_eq_slow(JSContext *ctx, JSValue *sp, BOOL is_neq) { BOOL res; res = js_strict_eq(ctx, sp[-2], sp[-1]); sp[-2] = JS_NewBool(ctx, res ^ is_neq); return 0; } static __exception int js_operator_in(JSContext *ctx, JSValue *sp) { JSValue op1, op2; JSAtom atom; int ret; op1 = sp[-2]; op2 = sp[-1]; if (JS_VALUE_GET_TAG(op2) != JS_TAG_OBJECT) { JS_ThrowTypeError(ctx, "invalid 'in' operand"); return -1; } atom = JS_ValueToAtom(ctx, op1); if (unlikely(atom == JS_ATOM_NULL)) return -1; ret = JS_HasProperty(ctx, op2, atom); JS_FreeAtom(ctx, atom); if (ret < 0) return -1; JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); sp[-2] = JS_NewBool(ctx, ret); return 0; } static __exception int js_has_unscopable(JSContext *ctx, JSValueConst obj, JSAtom atom) { JSValue arr, val; int ret; arr = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_unscopables); if (JS_IsException(arr)) return -1; ret = 0; if (JS_IsObject(arr)) { val = JS_GetProperty(ctx, arr, atom); ret = JS_ToBoolFree(ctx, val); } JS_FreeValue(ctx, arr); return ret; } static __exception int js_operator_instanceof(JSContext *ctx, JSValue *sp) { JSValue op1, op2; BOOL ret; op1 = sp[-2]; op2 = sp[-1]; ret = JS_IsInstanceOf(ctx, op1, op2); if (ret < 0) return ret; JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); sp[-2] = JS_NewBool(ctx, ret); return 0; } static __exception int js_operator_typeof(JSContext *ctx, JSValue op1) { JSAtom atom; uint32_t tag; tag = JS_VALUE_GET_NORM_TAG(op1); switch(tag) { #ifdef CONFIG_BIGNUM case JS_TAG_BIG_INT: atom = JS_ATOM_bigint; break; case JS_TAG_BIG_FLOAT: atom = JS_ATOM_bigfloat; break; case JS_TAG_BIG_DECIMAL: atom = JS_ATOM_bigdecimal; break; #endif case JS_TAG_INT: case JS_TAG_FLOAT64: atom = JS_ATOM_number; break; case JS_TAG_UNDEFINED: atom = JS_ATOM_undefined; break; case JS_TAG_BOOL: atom = JS_ATOM_boolean; break; case JS_TAG_STRING: atom = JS_ATOM_string; break; case JS_TAG_OBJECT: if (JS_IsFunction(ctx, op1)) atom = JS_ATOM_function; else goto obj_type; break; case JS_TAG_NULL: obj_type: atom = JS_ATOM_object; break; case JS_TAG_SYMBOL: atom = JS_ATOM_symbol; break; default: atom = JS_ATOM_unknown; break; } return atom; } static __exception int js_operator_delete(JSContext *ctx, JSValue *sp) { JSValue op1, op2; JSAtom atom; int ret; op1 = sp[-2]; op2 = sp[-1]; atom = JS_ValueToAtom(ctx, op2); if (unlikely(atom == JS_ATOM_NULL)) return -1; ret = JS_DeleteProperty(ctx, op1, atom, JS_PROP_THROW_STRICT); JS_FreeAtom(ctx, atom); if (unlikely(ret < 0)) return -1; JS_FreeValue(ctx, op1); JS_FreeValue(ctx, op2); sp[-2] = JS_NewBool(ctx, ret); return 0; } static JSValue js_throw_type_error(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv) { return JS_ThrowTypeError(ctx, "invalid property access"); } /* XXX: not 100% compatible, but mozilla seems to use a similar implementation to ensure that caller in non strict mode does not throw (ES5 compatibility) */ static JSValue js_function_proto_caller(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv) { JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val); if (!b || (b->js_mode & JS_MODE_STRICT) || !b->has_prototype) { return js_throw_type_error(ctx, this_val, 0, NULL); } return JS_UNDEFINED; } static JSValue js_function_proto_fileName(JSContext *ctx, JSValueConst this_val) { JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val); if (b && b->has_debug) { return JS_AtomToString(ctx, b->debug.filename); } return JS_UNDEFINED; } static JSValue js_function_proto_lineNumber(JSContext *ctx, JSValueConst this_val) { JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val); if (b && b->has_debug) { return JS_NewInt32(ctx, b->debug.line_num); } return JS_UNDEFINED; } static int js_arguments_define_own_property(JSContext *ctx, JSValueConst this_obj, JSAtom prop, JSValueConst val, JSValueConst getter, JSValueConst setter, int flags) { JSObject *p; uint32_t idx; p = JS_VALUE_GET_OBJ(this_obj); /* convert to normal array when redefining an existing numeric field */ if (p->fast_array && JS_AtomIsArrayIndex(ctx, &idx, prop) && idx < p->u.array.count) { if (convert_fast_array_to_array(ctx, p)) return -1; } /* run the default define own property */ return JS_DefineProperty(ctx, this_obj, prop, val, getter, setter, flags | JS_PROP_NO_EXOTIC); } static const JSClassExoticMethods js_arguments_exotic_methods = { .define_own_property = js_arguments_define_own_property, }; static JSValue js_build_arguments(JSContext *ctx, int argc, JSValueConst *argv) { JSValue val, *tab; JSProperty *pr; JSObject *p; int i; val = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT], JS_CLASS_ARGUMENTS); if (JS_IsException(val)) return val; p = JS_VALUE_GET_OBJ(val); /* add the length field (cannot fail) */ pr = add_property(ctx, p, JS_ATOM_length, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); pr->u.value = JS_NewInt32(ctx, argc); /* initialize the fast array part */ tab = NULL; if (argc > 0) { tab = js_malloc(ctx, sizeof(tab[0]) * argc); if (!tab) { JS_FreeValue(ctx, val); return JS_EXCEPTION; } for(i = 0; i < argc; i++) { tab[i] = JS_DupValue(ctx, argv[i]); } } p->u.array.u.values = tab; p->u.array.count = argc; JS_DefinePropertyValue(ctx, val, JS_ATOM_Symbol_iterator, JS_DupValue(ctx, ctx->array_proto_values), JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE); /* add callee property to throw a TypeError in strict mode */ JS_DefineProperty(ctx, val, JS_ATOM_callee, JS_UNDEFINED, ctx->throw_type_error, ctx->throw_type_error, JS_PROP_HAS_GET | JS_PROP_HAS_SET); return val; } #define GLOBAL_VAR_OFFSET 0x40000000 #define ARGUMENT_VAR_OFFSET 0x20000000 /* legacy arguments object: add references to the function arguments */ static JSValue js_build_mapped_arguments(JSContext *ctx, int argc, JSValueConst *argv, JSStackFrame *sf, int arg_count) { JSValue val; JSProperty *pr; JSObject *p; int i; val = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT], JS_CLASS_MAPPED_ARGUMENTS); if (JS_IsException(val)) return val; p = JS_VALUE_GET_OBJ(val); /* add the length field (cannot fail) */ pr = add_property(ctx, p, JS_ATOM_length, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); pr->u.value = JS_NewInt32(ctx, argc); for(i = 0; i < arg_count; i++) { JSVarRef *var_ref; var_ref = get_var_ref(ctx, sf, i, TRUE); if (!var_ref) goto fail; pr = add_property(ctx, p, __JS_AtomFromUInt32(i), JS_PROP_C_W_E | JS_PROP_VARREF); if (!pr) { free_var_ref(ctx->rt, var_ref); goto fail; } pr->u.var_ref = var_ref; } /* the arguments not mapped to the arguments of the function can be normal properties */ for(i = arg_count; i < argc; i++) { if (JS_DefinePropertyValueUint32(ctx, val, i, JS_DupValue(ctx, argv[i]), JS_PROP_C_W_E) < 0) goto fail; } JS_DefinePropertyValue(ctx, val, JS_ATOM_Symbol_iterator, JS_DupValue(ctx, ctx->array_proto_values), JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE); /* callee returns this function in non strict mode */ JS_DefinePropertyValue(ctx, val, JS_ATOM_callee, JS_DupValue(ctx, ctx->rt->current_stack_frame->cur_func), JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE); return val; fail: JS_FreeValue(ctx, val); return JS_EXCEPTION; } static JSValue js_build_rest(JSContext *ctx, int first, int argc, JSValueConst *argv) { JSValue val; int i, ret; val = JS_NewArray(ctx); if (JS_IsException(val)) return val; for (i = first; i < argc; i++) { ret = JS_DefinePropertyValueUint32(ctx, val, i - first, JS_DupValue(ctx, argv[i]), JS_PROP_C_W_E); if (ret < 0) { JS_FreeValue(ctx, val); return JS_EXCEPTION; } } return val; } static JSValue build_for_in_iterator(JSContext *ctx, JSValue obj) { JSObject *p, *p1; JSPropertyEnum *tab_atom; int i; JSValue enum_obj; JSForInIterator *it; uint32_t tag, tab_atom_count; tag = JS_VALUE_GET_TAG(obj); if (tag != JS_TAG_OBJECT && tag != JS_TAG_NULL && tag != JS_TAG_UNDEFINED) { obj = JS_ToObjectFree(ctx, obj); } it = js_malloc(ctx, sizeof(*it)); if (!it) { JS_FreeValue(ctx, obj); return JS_EXCEPTION; } enum_obj = JS_NewObjectProtoClass(ctx, JS_NULL, JS_CLASS_FOR_IN_ITERATOR); if (JS_IsException(enum_obj)) { js_free(ctx, it); JS_FreeValue(ctx, obj); return JS_EXCEPTION; } it->is_array = FALSE; it->obj = obj; it->idx = 0; p = JS_VALUE_GET_OBJ(enum_obj); p->u.for_in_iterator = it; if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED) return enum_obj; p = JS_VALUE_GET_OBJ(obj); /* fast path: assume no enumerable properties in the prototype chain */ p1 = p->shape->proto; while (p1 != NULL) { if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p1, JS_GPN_STRING_MASK | JS_GPN_ENUM_ONLY)) goto fail; js_free_prop_enum(ctx, tab_atom, tab_atom_count); if (tab_atom_count != 0) { goto slow_path; } p1 = p1->shape->proto; } if (p->fast_array) { JSShape *sh; JSShapeProperty *prs; /* check that there are no enumerable normal fields */ sh = p->shape; for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) { if (prs->flags & JS_PROP_ENUMERABLE) goto normal_case; } /* the implicit GetOwnProperty raises an exception if the typed array is detached */ if ((p->class_id >= JS_CLASS_UINT8C_ARRAY && p->class_id <= JS_CLASS_FLOAT64_ARRAY) && typed_array_is_detached(ctx, p) && typed_array_get_length(ctx, p) != 0) { JS_ThrowTypeErrorDetachedArrayBuffer(ctx); goto fail; } /* for fast arrays, we only store the number of elements */ it->is_array = TRUE; it->array_length = p->u.array.count; } else { normal_case: if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p, JS_GPN_STRING_MASK | JS_GPN_ENUM_ONLY)) goto fail; for(i = 0; i < tab_atom_count; i++) { JS_SetPropertyInternal(ctx, enum_obj, tab_atom[i].atom, JS_NULL, 0); } js_free_prop_enum(ctx, tab_atom, tab_atom_count); } return enum_obj; slow_path: /* non enumerable properties hide the enumerables ones in the prototype chain */ while (p != NULL) { if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p, JS_GPN_STRING_MASK | JS_GPN_SET_ENUM)) goto fail; for(i = 0; i < tab_atom_count; i++) { JS_DefinePropertyValue(ctx, enum_obj, tab_atom[i].atom, JS_NULL, (tab_atom[i].is_enumerable ? JS_PROP_ENUMERABLE : 0)); } js_free_prop_enum(ctx, tab_atom, tab_atom_count); p = p->shape->proto; } return enum_obj; fail: JS_FreeValue(ctx, enum_obj); return JS_EXCEPTION; } /* obj -> enum_obj */ static __exception int js_for_in_start(JSContext *ctx, JSValue *sp) { sp[-1] = build_for_in_iterator(ctx, sp[-1]); if (JS_IsException(sp[-1])) return -1; return 0; } /* enum_obj -> enum_obj value done */ static __exception int js_for_in_next(JSContext *ctx, JSValue *sp) { JSValueConst enum_obj; JSObject *p; JSAtom prop; JSForInIterator *it; int ret; enum_obj = sp[-1]; /* fail safe */ if (JS_VALUE_GET_TAG(enum_obj) != JS_TAG_OBJECT) goto done; p = JS_VALUE_GET_OBJ(enum_obj); if (p->class_id != JS_CLASS_FOR_IN_ITERATOR) goto done; it = p->u.for_in_iterator; for(;;) { if (it->is_array) { if (it->idx >= it->array_length) goto done; prop = __JS_AtomFromUInt32(it->idx); it->idx++; } else { JSShape *sh = p->shape; JSShapeProperty *prs; if (it->idx >= sh->prop_count) goto done; prs = get_shape_prop(sh) + it->idx; prop = prs->atom; it->idx++; if (prop == JS_ATOM_NULL || !(prs->flags & JS_PROP_ENUMERABLE)) continue; } /* check if the property was deleted */ ret = JS_HasProperty(ctx, it->obj, prop); if (ret < 0) return ret; if (ret) break; } /* return the property */ sp[0] = JS_AtomToValue(ctx, prop); sp[1] = JS_FALSE; return 0; done: /* return the end */ sp[0] = JS_UNDEFINED; sp[1] = JS_TRUE; return 0; } static JSValue JS_GetIterator2(JSContext *ctx, JSValueConst obj, JSValueConst method) { JSValue enum_obj; enum_obj = JS_Call(ctx, method, obj, 0, NULL); if (JS_IsException(enum_obj)) return enum_obj; if (!JS_IsObject(enum_obj)) { JS_FreeValue(ctx, enum_obj); return JS_ThrowTypeErrorNotAnObject(ctx); } return enum_obj; } static JSValue JS_GetIterator(JSContext *ctx, JSValueConst obj, BOOL is_async) { JSValue method, ret, sync_iter; if (is_async) { method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_asyncIterator); if (JS_IsException(method)) return method; if (JS_IsUndefined(method) || JS_IsNull(method)) { method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_iterator); if (JS_IsException(method)) return method; sync_iter = JS_GetIterator2(ctx, obj, method); JS_FreeValue(ctx, method); if (JS_IsException(sync_iter)) return sync_iter; ret = JS_CreateAsyncFromSyncIterator(ctx, sync_iter); JS_FreeValue(ctx, sync_iter); return ret; } } else { method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_iterator); if (JS_IsException(method)) return method; } if (!JS_IsFunction(ctx, method)) { JS_FreeValue(ctx, method); return JS_ThrowTypeError(ctx, "value is not iterable"); } ret = JS_GetIterator2(ctx, obj, method); JS_FreeValue(ctx, method); return ret; } /* return *pdone = 2 if the iterator object is not parsed */ static JSValue JS_IteratorNext2(JSContext *ctx, JSValueConst enum_obj, JSValueConst method, int argc, JSValueConst *argv, int *pdone) { JSValue obj; /* fast path for the built-in iterators (avoid creating the intermediate result object) */ if (JS_IsObject(method)) { JSObject *p = JS_VALUE_GET_OBJ(method); if (p->class_id == JS_CLASS_C_FUNCTION && p->u.cfunc.cproto == JS_CFUNC_iterator_next) { JSCFunctionType func; JSValueConst args[1]; /* in case the function expects one argument */ if (argc == 0) { args[0] = JS_UNDEFINED; argv = args; } func = p->u.cfunc.c_function; return func.iterator_next(ctx, enum_obj, argc, argv, pdone, p->u.cfunc.magic); } } obj = JS_Call(ctx, method, enum_obj, argc, argv); if (JS_IsException(obj)) goto fail; if (!JS_IsObject(obj)) { JS_FreeValue(ctx, obj); JS_ThrowTypeError(ctx, "iterator must return an object"); goto fail; } *pdone = 2; return obj; fail: *pdone = FALSE; return JS_EXCEPTION; } static JSValue JS_IteratorNext(JSContext *ctx, JSValueConst enum_obj, JSValueConst method, int argc, JSValueConst *argv, BOOL *pdone) { JSValue obj, value, done_val; int done; obj = JS_IteratorNext2(ctx, enum_obj, method, argc, argv, &done); if (JS_IsException(obj)) goto fail; if (done != 2) { *pdone = done; return obj; } else { done_val = JS_GetProperty(ctx, obj, JS_ATOM_done); if (JS_IsException(done_val)) goto fail; *pdone = JS_ToBoolFree(ctx, done_val); value = JS_UNDEFINED; if (!*pdone) { value = JS_GetProperty(ctx, obj, JS_ATOM_value); } JS_FreeValue(ctx, obj); return value; } fail: JS_FreeValue(ctx, obj); *pdone = FALSE; return JS_EXCEPTION; } /* return < 0 in case of exception */ static int JS_IteratorClose(JSContext *ctx, JSValueConst enum_obj, BOOL is_exception_pending) { JSValue method, ret, ex_obj; int res; if (is_exception_pending) { ex_obj = ctx->rt->current_exception; ctx->rt->current_exception = JS_NULL; res = -1; } else { ex_obj = JS_UNDEFINED; res = 0; } method = JS_GetProperty(ctx, enum_obj, JS_ATOM_return); if (JS_IsException(method)) { res = -1; goto done; } if (JS_IsUndefined(method) || JS_IsNull(method)) { goto done; } ret = JS_CallFree(ctx, method, enum_obj, 0, NULL); if (!is_exception_pending) { if (JS_IsException(ret)) { res = -1; } else if (!JS_IsObject(ret)) { JS_ThrowTypeErrorNotAnObject(ctx); res = -1; } } JS_FreeValue(ctx, ret); done: if (is_exception_pending) { JS_Throw(ctx, ex_obj); } return res; } /* obj -> enum_rec (3 slots) */ static __exception int js_for_of_start(JSContext *ctx, JSValue *sp, BOOL is_async) { JSValue op1, obj, method; op1 = sp[-1]; obj = JS_GetIterator(ctx, op1, is_async); if (JS_IsException(obj)) return -1; JS_FreeValue(ctx, op1); sp[-1] = obj; method = JS_GetProperty(ctx, obj, JS_ATOM_next); if (JS_IsException(method)) return -1; sp[0] = method; return 0; } /* enum_rec -> enum_rec value done */ static __exception int js_for_of_next(JSContext *ctx, JSValue *sp, int offset) { JSValue value = JS_UNDEFINED; int done = 1; if (likely(!JS_IsUndefined(sp[offset]))) { value = JS_IteratorNext(ctx, sp[offset], sp[offset + 1], 0, NULL, &done); if (JS_IsException(value)) done = -1; if (done) { /* value is JS_UNDEFINED or JS_EXCEPTION */ /* replace the iteration object with undefined */ JS_FreeValue(ctx, sp[offset]); sp[offset] = JS_UNDEFINED; if (done < 0) return -1; } } sp[0] = value; sp[1] = JS_NewBool(ctx, done); return 0; } static __exception int js_for_await_of_next(JSContext *ctx, JSValue *sp) { JSValue result; result = JS_Call(ctx, sp[-2], sp[-3], 0, NULL); if (JS_IsException(result)) return -1; sp[0] = result; return 0; } static JSValue JS_IteratorGetCompleteValue(JSContext *ctx, JSValueConst obj, BOOL *pdone) { JSValue done_val, value; BOOL done; done_val = JS_GetProperty(ctx, obj, JS_ATOM_done); if (JS_IsException(done_val)) goto fail; done = JS_ToBoolFree(ctx, done_val); value = JS_GetProperty(ctx, obj, JS_ATOM_value); if (JS_IsException(value)) goto fail; *pdone = done; return value; fail: *pdone = FALSE; return JS_EXCEPTION; } static __exception int js_iterator_get_value_done(JSContext *ctx, JSValue *sp) { JSValue obj, value; BOOL done; obj = sp[-1]; if (!JS_IsObject(obj)) { JS_ThrowTypeError(ctx, "iterator must return an object"); return -1; } value = JS_IteratorGetCompleteValue(ctx, obj, &done); if (JS_IsException(value)) return -1; JS_FreeValue(ctx, obj); sp[-1] = value; sp[0] = JS_NewBool(ctx, done); return 0; } static JSValue js_create_iterator_result(JSContext *ctx, JSValue val, BOOL done) { JSValue obj; obj = JS_NewObject(ctx); if (JS_IsException(obj)) { JS_FreeValue(ctx, val); return obj; } if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_value, val, JS_PROP_C_W_E) < 0) { goto fail; } if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_done, JS_NewBool(ctx, done), JS_PROP_C_W_E) < 0) { fail: JS_FreeValue(ctx, obj); return JS_EXCEPTION; } return obj; } static JSValue js_array_iterator_next(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, BOOL *pdone, int magic); static JSValue js_create_array_iterator(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic); static BOOL js_is_fast_array(JSContext *ctx, JSValueConst obj) { /* Try and handle fast arrays explicitly */ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { JSObject *p = JS_VALUE_GET_OBJ(obj); if (p->class_id == JS_CLASS_ARRAY && p->fast_array) { return TRUE; } } return FALSE; } /* Access an Array's internal JSValue array if available */ static BOOL js_get_fast_array(JSContext *ctx, JSValueConst obj, JSValue **arrpp, uint32_t *countp) { /* Try and handle fast arrays explicitly */ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) { JSObject *p = JS_VALUE_GET_OBJ(obj); if (p->class_id == JS_CLASS_ARRAY && p->fast_array) { *countp = p->u.array.count; *arrpp = p->u.array.u.values; return TRUE; } } return FALSE; } static __exception int js_append_enumerate(JSContext *ctx, JSValue *sp) { JSValue iterator, enumobj, method, value; int pos, is_array_iterator; JSValue *arrp; uint32_t i, count32; if (JS_VALUE_GET_TAG(sp[-2]) != JS_TAG_INT) { JS_ThrowInternalError(ctx, "invalid index for append"); return -1; } pos = JS_VALUE_GET_INT(sp[-2]); /* XXX: further optimisations: - use ctx->array_proto_values? - check if array_iterator_prototype next method is built-in and avoid constructing actual iterator object? - build this into js_for_of_start and use in all `for (x of o)` loops */ iterator = JS_GetProperty(ctx, sp[-1], JS_ATOM_Symbol_iterator); if (JS_IsException(iterator)) return -1; is_array_iterator = JS_IsCFunction(ctx, iterator, (JSCFunction *)js_create_array_iterator, JS_ITERATOR_KIND_VALUE); JS_FreeValue(ctx, iterator); enumobj = JS_GetIterator(ctx, sp[-1], FALSE); if (JS_IsException(enumobj)) return -1; method = JS_GetProperty(ctx, enumobj, JS_ATOM_next); if (JS_IsException(method)) { JS_FreeValue(ctx, enumobj); return -1; } if (is_array_iterator && JS_IsCFunction(ctx, method, (JSCFunction *)js_array_iterator_next, 0) && js_get_fast_array(ctx, sp[-1], &arrp, &count32)) { int64_t len; /* Handle fast arrays explicitly */ if (js_get_length64(ctx, &len, sp[-1])) goto exception; for (i = 0; i < count32; i++) { if (JS_DefinePropertyValueUint32(ctx, sp[-3], pos++, JS_DupValue(ctx, arrp[i]), JS_PROP_C_W_E) < 0) goto exception; } if (len > count32) { /* This is not strictly correct because the trailing elements are empty instead of undefined. Append undefined entries instead. */ pos += len - count32; if (JS_SetProperty(ctx, sp[-3], JS_ATOM_length, JS_NewUint32(ctx, pos)) < 0) goto exception; } } else { for (;;) { BOOL done; value = JS_IteratorNext(ctx, enumobj, method, 0, NULL, &done); if (JS_IsException(value)) goto exception; if (done) { /* value is JS_UNDEFINED */ break; } if (JS_DefinePropertyValueUint32(ctx, sp[-3], pos++, value, JS_PROP_C_W_E) < 0) goto exception; } } sp[-2] = JS_NewInt32(ctx, pos); JS_FreeValue(ctx, enumobj); JS_FreeValue(ctx, method); return 0; exception: JS_IteratorClose(ctx, enumobj, TRUE); JS_FreeValue(ctx, enumobj); JS_FreeValue(ctx, method); return -1; } static __exception int JS_CopyDataProperties(JSContext *ctx, JSValueConst target, JSValueConst source, JSValueConst excluded, BOOL setprop) { JSPropertyEnum *tab_atom; JSValue val; uint32_t i, tab_atom_count; JSObject *p; JSObject *pexcl = NULL; int ret = 0, flags; if (JS_VALUE_GET_TAG(source) != JS_TAG_OBJECT) return 0; if (JS_VALUE_GET_TAG(excluded) == JS_TAG_OBJECT) pexcl = JS_VALUE_GET_OBJ(excluded); p = JS_VALUE_GET_OBJ(source); if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p, JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK | JS_GPN_ENUM_ONLY)) return -1; flags = JS_PROP_C_W_E; for (i = 0; i < tab_atom_count; i++) { if (pexcl) { ret = JS_GetOwnPropertyInternal(ctx, NULL, pexcl, tab_atom[i].atom); if (ret) { if (ret < 0) break; ret = 0; continue; } } ret = -1; val = JS_GetProperty(ctx, source, tab_atom[i].atom); if (JS_IsException(val)) break; if (setprop) ret = JS_SetProperty(ctx, target, tab_atom[i].atom, val); else ret = JS_DefinePropertyValue(ctx, target, tab_atom[i].atom, val, flags); if (ret < 0) break; ret = 0; } js_free_prop_enum(ctx, tab_atom, tab_atom_count); return ret; } /* only valid inside C functions */ static JSValueConst JS_GetActiveFunction(JSContext *ctx) { return ctx->rt->current_stack_frame->cur_func; } static JSVarRef *get_var_ref(JSContext *ctx, JSStackFrame *sf, int var_idx, BOOL is_arg) { JSVarRef *var_ref; struct list_head *el; list_for_each(el, &sf->var_ref_list) { var_ref = list_entry(el, JSVarRef, header.link); if (var_ref->var_idx == var_idx && var_ref->is_arg == is_arg) { var_ref->header.ref_count++; return var_ref; } } /* create a new one */ var_ref = js_malloc(ctx, sizeof(JSVarRef)); if (!var_ref) return NULL; var_ref->header.ref_count = 1; var_ref->is_detached = FALSE; var_ref->is_arg = is_arg; var_ref->var_idx = var_idx; list_add_tail(&var_ref->header.link, &sf->var_ref_list); if (is_arg) var_ref->pvalue = &sf->arg_buf[var_idx]; else var_ref->pvalue = &sf->var_buf[var_idx]; var_ref->value = JS_UNDEFINED; return var_ref; } static JSValue js_closure2(JSContext *ctx, JSValue func_obj, JSFunctionBytecode *b, JSVarRef **cur_var_refs, JSStackFrame *sf) { JSObject *p; JSVarRef **var_refs; int i; p = JS_VALUE_GET_OBJ(func_obj); p->u.func.function_bytecode = b; p->u.func.home_object = NULL; p->u.func.var_refs = NULL; if (b->closure_var_count) { var_refs = js_mallocz(ctx, sizeof(var_refs[0]) * b->closure_var_count); if (!var_refs) goto fail; p->u.func.var_refs = var_refs; for(i = 0; i < b->closure_var_count; i++) { JSClosureVar *cv = &b->closure_var[i]; JSVarRef *var_ref; if (cv->is_local) { /* reuse the existing variable reference if it already exists */ var_ref = get_var_ref(ctx, sf, cv->var_idx, cv->is_arg); if (!var_ref) goto fail; } else { var_ref = cur_var_refs[cv->var_idx]; var_ref->header.ref_count++; } var_refs[i] = var_ref; } } return func_obj; fail: /* bfunc is freed when func_obj is freed */ JS_FreeValue(ctx, func_obj); return JS_EXCEPTION; } static int js_instantiate_prototype(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque) { JSValue obj, this_val; int ret; this_val = JS_MKPTR(JS_TAG_OBJECT, p); obj = JS_NewObject(ctx); if (JS_IsException(obj)) return -1; set_cycle_flag(ctx, obj); set_cycle_flag(ctx, this_val); ret = JS_DefinePropertyValue(ctx, obj, JS_ATOM_constructor, JS_DupValue(ctx, this_val), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE); if (JS_DefinePropertyValue(ctx, this_val, atom, obj, JS_PROP_WRITABLE) < 0 || ret < 0) return -1; return 0; } static const uint16_t func_kind_to_class_id[] = { [JS_FUNC_NORMAL] = JS_CLASS_BYTECODE_FUNCTION, [JS_FUNC_GENERATOR] = JS_CLASS_GENERATOR_FUNCTION, [JS_FUNC_ASYNC] = JS_CLASS_ASYNC_FUNCTION, [JS_FUNC_ASYNC_GENERATOR] = JS_CLASS_ASYNC_GENERATOR_FUNCTION, }; static JSValue js_closure(JSContext *ctx, JSValue bfunc, JSVarRef **cur_var_refs, JSStackFrame *sf) { JSFunctionBytecode *b; JSValue func_obj; JSAtom name_atom; b = JS_VALUE_GET_PTR(bfunc); func_obj = JS_NewObjectClass(ctx, func_kind_to_class_id[b->func_kind]); if (JS_IsException(func_obj)) { JS_FreeValue(ctx, bfunc); return JS_EXCEPTION; } func_obj = js_closure2(ctx, func_obj, b, cur_var_refs, sf); if (JS_IsException(func_obj)) { /* bfunc has been freed */ goto fail; } name_atom = b->func_name; if (name_atom == JS_ATOM_NULL) name_atom = JS_ATOM_empty_string; js_function_set_properties(ctx, func_obj, name_atom, b->defined_arg_count); if (b->func_kind & JS_FUNC_GENERATOR) { JSValue proto; int proto_class_id; /* generators have a prototype field which is used as prototype for the generator object */ if (b->func_kind == JS_FUNC_ASYNC_GENERATOR) proto_class_id = JS_CLASS_ASYNC_GENERATOR; else proto_class_id = JS_CLASS_GENERATOR; proto = JS_NewObjectProto(ctx, ctx->class_proto[proto_class_id]); if (JS_IsException(proto)) goto fail; JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_prototype, proto, JS_PROP_WRITABLE); } else if (b->has_prototype) { /* add the 'prototype' property: delay instantiation to avoid creating cycles for every javascript function. The prototype object is created on the fly when first accessed */ JS_SetConstructorBit(ctx, func_obj, TRUE); JS_DefineAutoInitProperty(ctx, func_obj, JS_ATOM_prototype, JS_AUTOINIT_ID_PROTOTYPE, NULL, JS_PROP_WRITABLE); } return func_obj; fail: /* bfunc is freed when func_obj is freed */ JS_FreeValue(ctx, func_obj); return JS_EXCEPTION; } #define JS_DEFINE_CLASS_HAS_HERITAGE (1 << 0) static int js_op_define_class(JSContext *ctx, JSValue *sp, JSAtom class_name, int class_flags, JSVarRef **cur_var_refs, JSStackFrame *sf, BOOL is_computed_name) { JSValue bfunc, parent_class, proto = JS_UNDEFINED; JSValue ctor = JS_UNDEFINED, parent_proto = JS_UNDEFINED; JSFunctionBytecode *b; parent_class = sp[-2]; bfunc = sp[-1]; if (class_flags & JS_DEFINE_CLASS_HAS_HERITAGE) { if (JS_IsNull(parent_class)) { parent_proto = JS_NULL; parent_class = JS_DupValue(ctx, ctx->function_proto); } else { if (!JS_IsConstructor(ctx, parent_class)) { JS_ThrowTypeError(ctx, "parent class must be constructor"); goto fail; } parent_proto = JS_GetProperty(ctx, parent_class, JS_ATOM_prototype); if (JS_IsException(parent_proto)) goto fail; if (!JS_IsNull(parent_proto) && !JS_IsObject(parent_proto)) { JS_ThrowTypeError(ctx, "parent prototype must be an object or null"); goto fail; } } } else { /* parent_class is JS_UNDEFINED in this case */ parent_proto = JS_DupValue(ctx, ctx->class_proto[JS_CLASS_OBJECT]); parent_class = JS_DupValue(ctx, ctx->function_proto); } proto = JS_NewObjectProto(ctx, parent_proto); if (JS_IsException(proto)) goto fail; b = JS_VALUE_GET_PTR(bfunc); assert(b->func_kind == JS_FUNC_NORMAL); ctor = JS_NewObjectProtoClass(ctx, parent_class, JS_CLASS_BYTECODE_FUNCTION); if (JS_IsException(ctor)) goto fail; ctor = js_closure2(ctx, ctor, b, cur_var_refs, sf); bfunc = JS_UNDEFINED; if (JS_IsException(ctor)) goto fail; js_method_set_home_object(ctx, ctor, proto); JS_SetConstructorBit(ctx, ctor, TRUE); JS_DefinePropertyValue(ctx, ctor, JS_ATOM_length, JS_NewInt32(ctx, b->defined_arg_count), JS_PROP_CONFIGURABLE); if (is_computed_name) { if (JS_DefineObjectNameComputed(ctx, ctor, sp[-3], JS_PROP_CONFIGURABLE) < 0) goto fail; } else { if (JS_DefineObjectName(ctx, ctor, class_name, JS_PROP_CONFIGURABLE) < 0) goto fail; } /* the constructor property must be first. It can be overriden by computed property names */ if (JS_DefinePropertyValue(ctx, proto, JS_ATOM_constructor, JS_DupValue(ctx, ctor), JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE | JS_PROP_THROW) < 0) goto fail; /* set the prototype property */ if (JS_DefinePropertyValue(ctx, ctor, JS_ATOM_prototype, JS_DupValue(ctx, proto), JS_PROP_THROW) < 0) goto fail; set_cycle_flag(ctx, ctor); set_cycle_flag(ctx, proto); JS_FreeValue(ctx, parent_proto); JS_FreeValue(ctx, parent_class); sp[-2] = ctor; sp[-1] = proto; return 0; fail: JS_FreeValue(ctx, parent_class); JS_FreeValue(ctx, parent_proto); JS_FreeValue(ctx, bfunc); JS_FreeValue(ctx, proto); JS_FreeValue(ctx, ctor); sp[-2] = JS_UNDEFINED; sp[-1] = JS_UNDEFINED; return -1; } static void close_var_refs(JSRuntime *rt, JSStackFrame *sf) { struct list_head *el, *el1; JSVarRef *var_ref; int var_idx; list_for_each_safe(el, el1, &sf->var_ref_list) { var_ref = list_entry(el, JSVarRef, header.link); var_idx = var_ref->var_idx; if (var_ref->is_arg) var_ref->value = JS_DupValueRT(rt, sf->arg_buf[var_idx]); else var_ref->value = JS_DupValueRT(rt, sf->var_buf[var_idx]); var_ref->pvalue = &var_ref->value; /* the reference is no longer to a local variable */ var_ref->is_detached = TRUE; add_gc_object(rt, &var_ref->header, JS_GC_OBJ_TYPE_VAR_REF); } } static void close_lexical_var(JSContext *ctx, JSStackFrame *sf, int idx, int is_arg) { struct list_head *el, *el1; JSVarRef *var_ref; int var_idx = idx; list_for_each_safe(el, el1, &sf->var_ref_list) { var_ref = list_entry(el, JSVarRef, header.link); if (var_idx == var_ref->var_idx && var_ref->is_arg == is_arg) { var_ref->value = JS_DupValue(ctx, sf->var_buf[var_idx]); var_ref->pvalue = &var_ref->value; list_del(&var_ref->header.link); /* the reference is no longer to a local variable */ var_ref->is_detached = TRUE; add_gc_object(ctx->rt, &var_ref->header, JS_GC_OBJ_TYPE_VAR_REF); } } } #define JS_CALL_FLAG_COPY_ARGV (1 << 1) #define JS_CALL_FLAG_GENERATOR (1 << 2) static JSValue js_call_c_function(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv, int flags) { JSRuntime *rt = ctx->rt; JSCFunctionType func; JSObject *p; JSStackFrame sf_s, *sf = &sf_s, *prev_sf; JSValue ret_val; JSValueConst *arg_buf; int arg_count, i; JSCFunctionEnum cproto; p = JS_VALUE_GET_OBJ(func_obj); cproto = p->u.cfunc.cproto; arg_count = p->u.cfunc.length; /* better to always check stack overflow */ if (js_check_stack_overflow(rt, sizeof(arg_buf[0]) * arg_count)) return JS_ThrowStackOverflow(ctx); prev_sf = rt->current_stack_frame; sf->prev_frame = prev_sf; rt->current_stack_frame = sf; ctx = p->u.cfunc.realm; /* change the current realm */ #ifdef CONFIG_BIGNUM /* we only propagate the bignum mode as some runtime functions test it */ if (prev_sf) sf->js_mode = prev_sf->js_mode & JS_MODE_MATH; else sf->js_mode = 0; #else sf->js_mode = 0; #endif sf->cur_func = (JSValue)func_obj; sf->arg_count = argc; arg_buf = argv; if (unlikely(argc < arg_count)) { /* ensure that at least argc_count arguments are readable */ arg_buf = alloca(sizeof(arg_buf[0]) * arg_count); for(i = 0; i < argc; i++) arg_buf[i] = argv[i]; for(i = argc; i < arg_count; i++) arg_buf[i] = JS_UNDEFINED; sf->arg_count = arg_count; } sf->arg_buf = (JSValue*)arg_buf; func = p->u.cfunc.c_function; switch(cproto) { case JS_CFUNC_constructor: case JS_CFUNC_constructor_or_func: if (!(flags & JS_CALL_FLAG_CONSTRUCTOR)) { if (cproto == JS_CFUNC_constructor) { not_a_constructor: ret_val = JS_ThrowTypeError(ctx, "must be called with new"); break; } else { this_obj = JS_UNDEFINED; } } /* here this_obj is new_target */ /* fall thru */ case JS_CFUNC_generic: ret_val = func.generic(ctx, this_obj, argc, arg_buf); break; case JS_CFUNC_constructor_magic: case JS_CFUNC_constructor_or_func_magic: if (!(flags & JS_CALL_FLAG_CONSTRUCTOR)) { if (cproto == JS_CFUNC_constructor_magic) { goto not_a_constructor; } else { this_obj = JS_UNDEFINED; } } /* fall thru */ case JS_CFUNC_generic_magic: ret_val = func.generic_magic(ctx, this_obj, argc, arg_buf, p->u.cfunc.magic); break; case JS_CFUNC_getter: ret_val = func.getter(ctx, this_obj); break; case JS_CFUNC_setter: ret_val = func.setter(ctx, this_obj, arg_buf[0]); break; case JS_CFUNC_getter_magic: ret_val = func.getter_magic(ctx, this_obj, p->u.cfunc.magic); break; case JS_CFUNC_setter_magic: ret_val = func.setter_magic(ctx, this_obj, arg_buf[0], p->u.cfunc.magic); break; case JS_CFUNC_f_f: { double d1; if (unlikely(JS_ToFloat64(ctx, &d1, arg_buf[0]))) { ret_val = JS_EXCEPTION; break; } ret_val = JS_NewFloat64(ctx, func.f_f(d1)); } break; case JS_CFUNC_f_f_f: { double d1, d2; if (unlikely(JS_ToFloat64(ctx, &d1, arg_buf[0]))) { ret_val = JS_EXCEPTION; break; } if (unlikely(JS_ToFloat64(ctx, &d2, arg_buf[1]))) { ret_val = JS_EXCEPTION; break; } ret_val = JS_NewFloat64(ctx, func.f_f_f(d1, d2)); } break; case JS_CFUNC_iterator_next: { int done; ret_val = func.iterator_next(ctx, this_obj, argc, arg_buf, &done, p->u.cfunc.magic); if (!JS_IsException(ret_val) && done != 2) { ret_val = js_create_iterator_result(ctx, ret_val, done); } } break; default: abort(); } rt->current_stack_frame = sf->prev_frame; return ret_val; } static JSValue js_call_bound_function(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv, int flags) { JSObject *p; JSBoundFunction *bf; JSValueConst *arg_buf, new_target; int arg_count, i; p = JS_VALUE_GET_OBJ(func_obj); bf = p->u.bound_function; arg_count = bf->argc + argc; if (js_check_stack_overflow(ctx->rt, sizeof(JSValue) * arg_count)) return JS_ThrowStackOverflow(ctx); arg_buf = alloca(sizeof(JSValue) * arg_count); for(i = 0; i < bf->argc; i++) { arg_buf[i] = bf->argv[i]; } for(i = 0; i < argc; i++) { arg_buf[bf->argc + i] = argv[i]; } if (flags & JS_CALL_FLAG_CONSTRUCTOR) { new_target = this_obj; if (js_same_value(ctx, func_obj, new_target)) new_target = bf->func_obj; return JS_CallConstructor2(ctx, bf->func_obj, new_target, arg_count, arg_buf); } else { return JS_Call(ctx, bf->func_obj, bf->this_val, arg_count, arg_buf); } } /* argument of OP_special_object */ typedef enum { OP_SPECIAL_OBJECT_ARGUMENTS, OP_SPECIAL_OBJECT_MAPPED_ARGUMENTS, OP_SPECIAL_OBJECT_THIS_FUNC, OP_SPECIAL_OBJECT_NEW_TARGET, OP_SPECIAL_OBJECT_HOME_OBJECT, OP_SPECIAL_OBJECT_VAR_OBJECT, OP_SPECIAL_OBJECT_IMPORT_META, } OPSpecialObjectEnum; #define FUNC_RET_AWAIT 0 #define FUNC_RET_YIELD 1 #define FUNC_RET_YIELD_STAR 2 /* argv[] is modified if (flags & JS_CALL_FLAG_COPY_ARGV) = 0. */ static JSValue JS_CallInternal(JSContext *caller_ctx, JSValueConst func_obj, JSValueConst this_obj, JSValueConst new_target, int argc, JSValue *argv, int flags) { JSRuntime *rt = caller_ctx->rt; JSContext *ctx; JSObject *p; JSFunctionBytecode *b; JSStackFrame sf_s, *sf = &sf_s; const uint8_t *pc; int opcode, arg_allocated_size, i; JSValue *local_buf, *stack_buf, *var_buf, *arg_buf, *sp, ret_val, *pval; JSVarRef **var_refs; size_t alloca_size; #if !DIRECT_DISPATCH #define SWITCH(pc) switch (opcode = *pc++) #define CASE(op) case op #define DEFAULT default #define BREAK break #else static const void * const dispatch_table[256] = { #define DEF(id, size, n_pop, n_push, f) && case_OP_ ## id, #if SHORT_OPCODES #define def(id, size, n_pop, n_push, f) #else #define def(id, size, n_pop, n_push, f) && case_default, #endif #include "quickjs-opcode.h" [ OP_COUNT ... 255 ] = &&case_default }; #define SWITCH(pc) goto *dispatch_table[opcode = *pc++]; #define CASE(op) case_ ## op #define DEFAULT case_default #define BREAK SWITCH(pc) #endif if (js_poll_interrupts(caller_ctx)) return JS_EXCEPTION; if (unlikely(JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)) { if (flags & JS_CALL_FLAG_GENERATOR) { JSAsyncFunctionState *s = JS_VALUE_GET_PTR(func_obj); /* func_obj get contains a pointer to JSFuncAsyncState */ /* the stack frame is already allocated */ sf = &s->frame; p = JS_VALUE_GET_OBJ(sf->cur_func); b = p->u.func.function_bytecode; ctx = b->realm; var_refs = p->u.func.var_refs; local_buf = arg_buf = sf->arg_buf; var_buf = sf->var_buf; stack_buf = sf->var_buf + b->var_count; sp = sf->cur_sp; sf->cur_sp = NULL; /* cur_sp is NULL if the function is running */ pc = sf->cur_pc; sf->prev_frame = rt->current_stack_frame; rt->current_stack_frame = sf; if (s->throw_flag) goto exception; else goto restart; } else { goto not_a_function; } } p = JS_VALUE_GET_OBJ(func_obj); if (unlikely(p->class_id != JS_CLASS_BYTECODE_FUNCTION)) { JSClassCall *call_func; call_func = rt->class_array[p->class_id].call; if (!call_func) { not_a_function: return JS_ThrowTypeError(caller_ctx, "not a function"); } return call_func(caller_ctx, func_obj, this_obj, argc, (JSValueConst *)argv, flags); } b = p->u.func.function_bytecode; if (unlikely(argc < b->arg_count || (flags & JS_CALL_FLAG_COPY_ARGV))) { arg_allocated_size = b->arg_count; } else { arg_allocated_size = 0; } alloca_size = sizeof(JSValue) * (arg_allocated_size + b->var_count + b->stack_size); if (js_check_stack_overflow(rt, alloca_size)) return JS_ThrowStackOverflow(caller_ctx); sf->js_mode = b->js_mode; arg_buf = argv; sf->arg_count = argc; sf->cur_func = (JSValue)func_obj; init_list_head(&sf->var_ref_list); var_refs = p->u.func.var_refs; local_buf = alloca(alloca_size); if (unlikely(arg_allocated_size)) { int n = min_int(argc, b->arg_count); arg_buf = local_buf; for(i = 0; i < n; i++) arg_buf[i] = JS_DupValue(caller_ctx, argv[i]); for(; i < b->arg_count; i++) arg_buf[i] = JS_UNDEFINED; sf->arg_count = b->arg_count; } var_buf = local_buf + arg_allocated_size; sf->var_buf = var_buf; sf->arg_buf = arg_buf; for(i = 0; i < b->var_count; i++) var_buf[i] = JS_UNDEFINED; stack_buf = var_buf + b->var_count; sp = stack_buf; pc = b->byte_code_buf; sf->prev_frame = rt->current_stack_frame; rt->current_stack_frame = sf; ctx = b->realm; /* set the current realm */ restart: for(;;) { int call_argc; JSValue *call_argv; SWITCH(pc) { CASE(OP_push_i32): *sp++ = JS_NewInt32(ctx, get_u32(pc)); pc += 4; BREAK; CASE(OP_push_const): *sp++ = JS_DupValue(ctx, b->cpool[get_u32(pc)]); pc += 4; BREAK; #if SHORT_OPCODES CASE(OP_push_minus1): CASE(OP_push_0): CASE(OP_push_1): CASE(OP_push_2): CASE(OP_push_3): CASE(OP_push_4): CASE(OP_push_5): CASE(OP_push_6): CASE(OP_push_7): *sp++ = JS_NewInt32(ctx, opcode - OP_push_0); BREAK; CASE(OP_push_i8): *sp++ = JS_NewInt32(ctx, get_i8(pc)); pc += 1; BREAK; CASE(OP_push_i16): *sp++ = JS_NewInt32(ctx, get_i16(pc)); pc += 2; BREAK; CASE(OP_push_const8): *sp++ = JS_DupValue(ctx, b->cpool[*pc++]); BREAK; CASE(OP_fclosure8): *sp++ = js_closure(ctx, JS_DupValue(ctx, b->cpool[*pc++]), var_refs, sf); if (unlikely(JS_IsException(sp[-1]))) goto exception; BREAK; CASE(OP_push_empty_string): *sp++ = JS_AtomToString(ctx, JS_ATOM_empty_string); BREAK; CASE(OP_get_length): { JSValue val; val = JS_GetProperty(ctx, sp[-1], JS_ATOM_length); if (unlikely(JS_IsException(val))) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = val; } BREAK; #endif CASE(OP_push_atom_value): *sp++ = JS_AtomToValue(ctx, get_u32(pc)); pc += 4; BREAK; CASE(OP_undefined): *sp++ = JS_UNDEFINED; BREAK; CASE(OP_null): *sp++ = JS_NULL; BREAK; CASE(OP_push_this): /* OP_push_this is only called at the start of a function */ { JSValue val; if (!(b->js_mode & JS_MODE_STRICT)) { uint32_t tag = JS_VALUE_GET_TAG(this_obj); if (likely(tag == JS_TAG_OBJECT)) goto normal_this; if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED) { val = JS_DupValue(ctx, ctx->global_obj); } else { val = JS_ToObject(ctx, this_obj); if (JS_IsException(val)) goto exception; } } else { normal_this: val = JS_DupValue(ctx, this_obj); } *sp++ = val; } BREAK; CASE(OP_push_false): *sp++ = JS_FALSE; BREAK; CASE(OP_push_true): *sp++ = JS_TRUE; BREAK; CASE(OP_object): *sp++ = JS_NewObject(ctx); if (unlikely(JS_IsException(sp[-1]))) goto exception; BREAK; CASE(OP_special_object): { int arg = *pc++; switch(arg) { case OP_SPECIAL_OBJECT_ARGUMENTS: *sp++ = js_build_arguments(ctx, argc, (JSValueConst *)argv); if (unlikely(JS_IsException(sp[-1]))) goto exception; break; case OP_SPECIAL_OBJECT_MAPPED_ARGUMENTS: *sp++ = js_build_mapped_arguments(ctx, argc, (JSValueConst *)argv, sf, min_int(argc, b->arg_count)); if (unlikely(JS_IsException(sp[-1]))) goto exception; break; case OP_SPECIAL_OBJECT_THIS_FUNC: *sp++ = JS_DupValue(ctx, sf->cur_func); break; case OP_SPECIAL_OBJECT_NEW_TARGET: *sp++ = JS_DupValue(ctx, new_target); break; case OP_SPECIAL_OBJECT_HOME_OBJECT: { JSObject *p1; p1 = p->u.func.home_object; if (unlikely(!p1)) *sp++ = JS_UNDEFINED; else *sp++ = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1)); } break; case OP_SPECIAL_OBJECT_VAR_OBJECT: *sp++ = JS_NewObjectProto(ctx, JS_NULL); if (unlikely(JS_IsException(sp[-1]))) goto exception; break; case OP_SPECIAL_OBJECT_IMPORT_META: *sp++ = js_import_meta(ctx); if (unlikely(JS_IsException(sp[-1]))) goto exception; break; default: abort(); } } BREAK; CASE(OP_rest): { int first = get_u16(pc); pc += 2; *sp++ = js_build_rest(ctx, first, argc, (JSValueConst *)argv); if (unlikely(JS_IsException(sp[-1]))) goto exception; } BREAK; CASE(OP_drop): JS_FreeValue(ctx, sp[-1]); sp--; BREAK; CASE(OP_nip): JS_FreeValue(ctx, sp[-2]); sp[-2] = sp[-1]; sp--; BREAK; CASE(OP_nip1): /* a b c -> b c */ JS_FreeValue(ctx, sp[-3]); sp[-3] = sp[-2]; sp[-2] = sp[-1]; sp--; BREAK; CASE(OP_dup): sp[0] = JS_DupValue(ctx, sp[-1]); sp++; BREAK; CASE(OP_dup2): /* a b -> a b a b */ sp[0] = JS_DupValue(ctx, sp[-2]); sp[1] = JS_DupValue(ctx, sp[-1]); sp += 2; BREAK; CASE(OP_dup3): /* a b c -> a b c a b c */ sp[0] = JS_DupValue(ctx, sp[-3]); sp[1] = JS_DupValue(ctx, sp[-2]); sp[2] = JS_DupValue(ctx, sp[-1]); sp += 3; BREAK; CASE(OP_dup1): /* a b -> a a b */ sp[0] = sp[-1]; sp[-1] = JS_DupValue(ctx, sp[-2]); sp++; BREAK; CASE(OP_insert2): /* obj a -> a obj a (dup_x1) */ sp[0] = sp[-1]; sp[-1] = sp[-2]; sp[-2] = JS_DupValue(ctx, sp[0]); sp++; BREAK; CASE(OP_insert3): /* obj prop a -> a obj prop a (dup_x2) */ sp[0] = sp[-1]; sp[-1] = sp[-2]; sp[-2] = sp[-3]; sp[-3] = JS_DupValue(ctx, sp[0]); sp++; BREAK; CASE(OP_insert4): /* this obj prop a -> a this obj prop a */ sp[0] = sp[-1]; sp[-1] = sp[-2]; sp[-2] = sp[-3]; sp[-3] = sp[-4]; sp[-4] = JS_DupValue(ctx, sp[0]); sp++; BREAK; CASE(OP_perm3): /* obj a b -> a obj b (213) */ { JSValue tmp; tmp = sp[-2]; sp[-2] = sp[-3]; sp[-3] = tmp; } BREAK; CASE(OP_rot3l): /* x a b -> a b x (231) */ { JSValue tmp; tmp = sp[-3]; sp[-3] = sp[-2]; sp[-2] = sp[-1]; sp[-1] = tmp; } BREAK; CASE(OP_rot4l): /* x a b c -> a b c x */ { JSValue tmp; tmp = sp[-4]; sp[-4] = sp[-3]; sp[-3] = sp[-2]; sp[-2] = sp[-1]; sp[-1] = tmp; } BREAK; CASE(OP_rot5l): /* x a b c d -> a b c d x */ { JSValue tmp; tmp = sp[-5]; sp[-5] = sp[-4]; sp[-4] = sp[-3]; sp[-3] = sp[-2]; sp[-2] = sp[-1]; sp[-1] = tmp; } BREAK; CASE(OP_rot3r): /* a b x -> x a b (312) */ { JSValue tmp; tmp = sp[-1]; sp[-1] = sp[-2]; sp[-2] = sp[-3]; sp[-3] = tmp; } BREAK; CASE(OP_perm4): /* obj prop a b -> a obj prop b */ { JSValue tmp; tmp = sp[-2]; sp[-2] = sp[-3]; sp[-3] = sp[-4]; sp[-4] = tmp; } BREAK; CASE(OP_perm5): /* this obj prop a b -> a this obj prop b */ { JSValue tmp; tmp = sp[-2]; sp[-2] = sp[-3]; sp[-3] = sp[-4]; sp[-4] = sp[-5]; sp[-5] = tmp; } BREAK; CASE(OP_swap): /* a b -> b a */ { JSValue tmp; tmp = sp[-2]; sp[-2] = sp[-1]; sp[-1] = tmp; } BREAK; CASE(OP_swap2): /* a b c d -> c d a b */ { JSValue tmp1, tmp2; tmp1 = sp[-4]; tmp2 = sp[-3]; sp[-4] = sp[-2]; sp[-3] = sp[-1]; sp[-2] = tmp1; sp[-1] = tmp2; } BREAK; CASE(OP_fclosure): { JSValue bfunc = JS_DupValue(ctx, b->cpool[get_u32(pc)]); pc += 4; *sp++ = js_closure(ctx, bfunc, var_refs, sf); if (unlikely(JS_IsException(sp[-1]))) goto exception; } BREAK; #if SHORT_OPCODES CASE(OP_call0): CASE(OP_call1): CASE(OP_call2): CASE(OP_call3): call_argc = opcode - OP_call0; goto has_call_argc; #endif CASE(OP_call): CASE(OP_tail_call): { call_argc = get_u16(pc); pc += 2; goto has_call_argc; has_call_argc: call_argv = sp - call_argc; sf->cur_pc = pc; ret_val = JS_CallInternal(ctx, call_argv[-1], JS_UNDEFINED, JS_UNDEFINED, call_argc, call_argv, 0); if (unlikely(JS_IsException(ret_val))) goto exception; if (opcode == OP_tail_call) goto done; for(i = -1; i < call_argc; i++) JS_FreeValue(ctx, call_argv[i]); sp -= call_argc + 1; *sp++ = ret_val; } BREAK; CASE(OP_call_constructor): { call_argc = get_u16(pc); pc += 2; call_argv = sp - call_argc; sf->cur_pc = pc; ret_val = JS_CallConstructorInternal(ctx, call_argv[-2], call_argv[-1], call_argc, call_argv, 0); if (unlikely(JS_IsException(ret_val))) goto exception; for(i = -2; i < call_argc; i++) JS_FreeValue(ctx, call_argv[i]); sp -= call_argc + 2; *sp++ = ret_val; } BREAK; CASE(OP_call_method): CASE(OP_tail_call_method): { call_argc = get_u16(pc); pc += 2; call_argv = sp - call_argc; sf->cur_pc = pc; ret_val = JS_CallInternal(ctx, call_argv[-1], call_argv[-2], JS_UNDEFINED, call_argc, call_argv, 0); if (unlikely(JS_IsException(ret_val))) goto exception; if (opcode == OP_tail_call_method) goto done; for(i = -2; i < call_argc; i++) JS_FreeValue(ctx, call_argv[i]); sp -= call_argc + 2; *sp++ = ret_val; } BREAK; CASE(OP_array_from): { int i, ret; call_argc = get_u16(pc); pc += 2; ret_val = JS_NewArray(ctx); if (unlikely(JS_IsException(ret_val))) goto exception; call_argv = sp - call_argc; for(i = 0; i < call_argc; i++) { ret = JS_DefinePropertyValue(ctx, ret_val, __JS_AtomFromUInt32(i), call_argv[i], JS_PROP_C_W_E | JS_PROP_THROW); call_argv[i] = JS_UNDEFINED; if (ret < 0) { JS_FreeValue(ctx, ret_val); goto exception; } } sp -= call_argc; *sp++ = ret_val; } BREAK; CASE(OP_apply): { int magic; magic = get_u16(pc); pc += 2; ret_val = js_function_apply(ctx, sp[-3], 2, (JSValueConst *)&sp[-2], magic); if (unlikely(JS_IsException(ret_val))) goto exception; JS_FreeValue(ctx, sp[-3]); JS_FreeValue(ctx, sp[-2]); JS_FreeValue(ctx, sp[-1]); sp -= 3; *sp++ = ret_val; } BREAK; CASE(OP_return): ret_val = *--sp; goto done; CASE(OP_return_undef): ret_val = JS_UNDEFINED; goto done; CASE(OP_check_ctor_return): /* return TRUE if 'this' should be returned */ if (!JS_IsObject(sp[-1])) { if (!JS_IsUndefined(sp[-1])) { JS_ThrowTypeError(caller_ctx, "derived class constructor must return an object or undefined"); goto exception; } sp[0] = JS_TRUE; } else { sp[0] = JS_FALSE; } sp++; BREAK; CASE(OP_check_ctor): if (JS_IsUndefined(new_target)) { JS_ThrowTypeError(caller_ctx, "class constructors must be invoked with 'new'"); goto exception; } BREAK; CASE(OP_check_brand): if (JS_CheckBrand(ctx, sp[-2], sp[-1]) < 0) goto exception; BREAK; CASE(OP_add_brand): if (JS_AddBrand(ctx, sp[-2], sp[-1]) < 0) goto exception; JS_FreeValue(ctx, sp[-2]); JS_FreeValue(ctx, sp[-1]); sp -= 2; BREAK; CASE(OP_throw): JS_Throw(ctx, *--sp); goto exception; CASE(OP_throw_var): #define JS_THROW_VAR_RO 0 #define JS_THROW_VAR_REDECL 1 #define JS_THROW_VAR_UNINITIALIZED 2 #define JS_THROW_VAR_DELETE_SUPER 3 { JSAtom atom; int type; atom = get_u32(pc); type = pc[4]; pc += 5; if (type == JS_THROW_VAR_RO) JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, atom); else if (type == JS_THROW_VAR_REDECL) JS_ThrowSyntaxErrorVarRedeclaration(ctx, atom); else if (type == JS_THROW_VAR_UNINITIALIZED) JS_ThrowReferenceErrorUninitialized(ctx, atom); else if (type == JS_THROW_VAR_DELETE_SUPER) JS_ThrowReferenceError(ctx, "unsupported reference to 'super'"); else JS_ThrowInternalError(ctx, "invalid throw var type %d", type); } goto exception; CASE(OP_eval): { JSValueConst obj; int scope_idx; call_argc = get_u16(pc); scope_idx = get_u16(pc + 2) - 1; pc += 4; call_argv = sp - call_argc; sf->cur_pc = pc; if (js_same_value(ctx, call_argv[-1], ctx->eval_obj)) { if (call_argc >= 1) obj = call_argv[0]; else obj = JS_UNDEFINED; ret_val = JS_EvalObject(ctx, JS_UNDEFINED, obj, JS_EVAL_TYPE_DIRECT, scope_idx); } else { ret_val = JS_CallInternal(ctx, call_argv[-1], JS_UNDEFINED, JS_UNDEFINED, call_argc, call_argv, 0); } if (unlikely(JS_IsException(ret_val))) goto exception; for(i = -1; i < call_argc; i++) JS_FreeValue(ctx, call_argv[i]); sp -= call_argc + 1; *sp++ = ret_val; } BREAK; /* could merge with OP_apply */ CASE(OP_apply_eval): { int scope_idx; uint32_t len; JSValue *tab; JSValueConst obj; scope_idx = get_u16(pc) - 1; pc += 2; tab = build_arg_list(ctx, &len, sp[-1]); if (!tab) goto exception; if (js_same_value(ctx, sp[-2], ctx->eval_obj)) { if (len >= 1) obj = tab[0]; else obj = JS_UNDEFINED; ret_val = JS_EvalObject(ctx, JS_UNDEFINED, obj, JS_EVAL_TYPE_DIRECT, scope_idx); } else { ret_val = JS_Call(ctx, sp[-2], JS_UNDEFINED, len, (JSValueConst *)tab); } free_arg_list(ctx, tab, len); if (unlikely(JS_IsException(ret_val))) goto exception; JS_FreeValue(ctx, sp[-2]); JS_FreeValue(ctx, sp[-1]); sp -= 2; *sp++ = ret_val; } BREAK; CASE(OP_regexp): { sp[-2] = js_regexp_constructor_internal(ctx, JS_UNDEFINED, sp[-2], sp[-1]); sp--; } BREAK; CASE(OP_get_super): { JSValue proto; proto = JS_GetPrototype(ctx, sp[-1]); if (JS_IsException(proto)) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = proto; } BREAK; CASE(OP_import): { JSValue val; val = js_dynamic_import(ctx, sp[-1]); if (JS_IsException(val)) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = val; } BREAK; CASE(OP_check_var): { int ret; JSAtom atom; atom = get_u32(pc); pc += 4; ret = JS_CheckGlobalVar(ctx, atom); if (ret < 0) goto exception; *sp++ = JS_NewBool(ctx, ret); } BREAK; CASE(OP_get_var_undef): CASE(OP_get_var): { JSValue val; JSAtom atom; atom = get_u32(pc); pc += 4; val = JS_GetGlobalVar(ctx, atom, opcode - OP_get_var_undef); if (unlikely(JS_IsException(val))) goto exception; *sp++ = val; } BREAK; CASE(OP_put_var): CASE(OP_put_var_init): { int ret; JSAtom atom; atom = get_u32(pc); pc += 4; ret = JS_SetGlobalVar(ctx, atom, sp[-1], opcode - OP_put_var); sp--; if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_put_var_strict): { int ret; JSAtom atom; atom = get_u32(pc); pc += 4; /* sp[-2] is JS_TRUE or JS_FALSE */ if (unlikely(!JS_VALUE_GET_INT(sp[-2]))) { JS_ThrowReferenceErrorNotDefined(ctx, atom); goto exception; } ret = JS_SetGlobalVar(ctx, atom, sp[-1], 2); sp -= 2; if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_check_define_var): { JSAtom atom; int flags; atom = get_u32(pc); flags = pc[4]; pc += 5; if (JS_CheckDefineGlobalVar(ctx, atom, flags)) goto exception; } BREAK; CASE(OP_define_var): { JSAtom atom; int flags; atom = get_u32(pc); flags = pc[4]; pc += 5; if (JS_DefineGlobalVar(ctx, atom, flags)) goto exception; } BREAK; CASE(OP_define_func): { JSAtom atom; int flags; atom = get_u32(pc); flags = pc[4]; pc += 5; if (JS_DefineGlobalFunction(ctx, atom, sp[-1], flags)) goto exception; JS_FreeValue(ctx, sp[-1]); sp--; } BREAK; CASE(OP_get_loc): { int idx; idx = get_u16(pc); pc += 2; sp[0] = JS_DupValue(ctx, var_buf[idx]); sp++; } BREAK; CASE(OP_put_loc): { int idx; idx = get_u16(pc); pc += 2; set_value(ctx, &var_buf[idx], sp[-1]); sp--; } BREAK; CASE(OP_set_loc): { int idx; idx = get_u16(pc); pc += 2; set_value(ctx, &var_buf[idx], JS_DupValue(ctx, sp[-1])); } BREAK; CASE(OP_get_arg): { int idx; idx = get_u16(pc); pc += 2; sp[0] = JS_DupValue(ctx, arg_buf[idx]); sp++; } BREAK; CASE(OP_put_arg): { int idx; idx = get_u16(pc); pc += 2; set_value(ctx, &arg_buf[idx], sp[-1]); sp--; } BREAK; CASE(OP_set_arg): { int idx; idx = get_u16(pc); pc += 2; set_value(ctx, &arg_buf[idx], JS_DupValue(ctx, sp[-1])); } BREAK; #if SHORT_OPCODES CASE(OP_get_loc8): *sp++ = JS_DupValue(ctx, var_buf[*pc++]); BREAK; CASE(OP_put_loc8): set_value(ctx, &var_buf[*pc++], *--sp); BREAK; CASE(OP_set_loc8): set_value(ctx, &var_buf[*pc++], JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_get_loc0): *sp++ = JS_DupValue(ctx, var_buf[0]); BREAK; CASE(OP_get_loc1): *sp++ = JS_DupValue(ctx, var_buf[1]); BREAK; CASE(OP_get_loc2): *sp++ = JS_DupValue(ctx, var_buf[2]); BREAK; CASE(OP_get_loc3): *sp++ = JS_DupValue(ctx, var_buf[3]); BREAK; CASE(OP_put_loc0): set_value(ctx, &var_buf[0], *--sp); BREAK; CASE(OP_put_loc1): set_value(ctx, &var_buf[1], *--sp); BREAK; CASE(OP_put_loc2): set_value(ctx, &var_buf[2], *--sp); BREAK; CASE(OP_put_loc3): set_value(ctx, &var_buf[3], *--sp); BREAK; CASE(OP_set_loc0): set_value(ctx, &var_buf[0], JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_set_loc1): set_value(ctx, &var_buf[1], JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_set_loc2): set_value(ctx, &var_buf[2], JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_set_loc3): set_value(ctx, &var_buf[3], JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_get_arg0): *sp++ = JS_DupValue(ctx, arg_buf[0]); BREAK; CASE(OP_get_arg1): *sp++ = JS_DupValue(ctx, arg_buf[1]); BREAK; CASE(OP_get_arg2): *sp++ = JS_DupValue(ctx, arg_buf[2]); BREAK; CASE(OP_get_arg3): *sp++ = JS_DupValue(ctx, arg_buf[3]); BREAK; CASE(OP_put_arg0): set_value(ctx, &arg_buf[0], *--sp); BREAK; CASE(OP_put_arg1): set_value(ctx, &arg_buf[1], *--sp); BREAK; CASE(OP_put_arg2): set_value(ctx, &arg_buf[2], *--sp); BREAK; CASE(OP_put_arg3): set_value(ctx, &arg_buf[3], *--sp); BREAK; CASE(OP_set_arg0): set_value(ctx, &arg_buf[0], JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_set_arg1): set_value(ctx, &arg_buf[1], JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_set_arg2): set_value(ctx, &arg_buf[2], JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_set_arg3): set_value(ctx, &arg_buf[3], JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_get_var_ref0): *sp++ = JS_DupValue(ctx, *var_refs[0]->pvalue); BREAK; CASE(OP_get_var_ref1): *sp++ = JS_DupValue(ctx, *var_refs[1]->pvalue); BREAK; CASE(OP_get_var_ref2): *sp++ = JS_DupValue(ctx, *var_refs[2]->pvalue); BREAK; CASE(OP_get_var_ref3): *sp++ = JS_DupValue(ctx, *var_refs[3]->pvalue); BREAK; CASE(OP_put_var_ref0): set_value(ctx, var_refs[0]->pvalue, *--sp); BREAK; CASE(OP_put_var_ref1): set_value(ctx, var_refs[1]->pvalue, *--sp); BREAK; CASE(OP_put_var_ref2): set_value(ctx, var_refs[2]->pvalue, *--sp); BREAK; CASE(OP_put_var_ref3): set_value(ctx, var_refs[3]->pvalue, *--sp); BREAK; CASE(OP_set_var_ref0): set_value(ctx, var_refs[0]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_set_var_ref1): set_value(ctx, var_refs[1]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_set_var_ref2): set_value(ctx, var_refs[2]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK; CASE(OP_set_var_ref3): set_value(ctx, var_refs[3]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK; #endif CASE(OP_get_var_ref): { int idx; JSValue val; idx = get_u16(pc); pc += 2; val = *var_refs[idx]->pvalue; sp[0] = JS_DupValue(ctx, val); sp++; } BREAK; CASE(OP_put_var_ref): { int idx; idx = get_u16(pc); pc += 2; set_value(ctx, var_refs[idx]->pvalue, sp[-1]); sp--; } BREAK; CASE(OP_set_var_ref): { int idx; idx = get_u16(pc); pc += 2; set_value(ctx, var_refs[idx]->pvalue, JS_DupValue(ctx, sp[-1])); } BREAK; CASE(OP_get_var_ref_check): { int idx; JSValue val; idx = get_u16(pc); pc += 2; val = *var_refs[idx]->pvalue; if (unlikely(JS_IsUninitialized(val))) { JS_ThrowReferenceErrorUninitialized(ctx, JS_ATOM_NULL); goto exception; } sp[0] = JS_DupValue(ctx, val); sp++; } BREAK; CASE(OP_put_var_ref_check): { int idx; idx = get_u16(pc); pc += 2; if (unlikely(JS_IsUninitialized(*var_refs[idx]->pvalue))) { JS_ThrowReferenceErrorUninitialized(ctx, JS_ATOM_NULL); goto exception; } set_value(ctx, var_refs[idx]->pvalue, sp[-1]); sp--; } BREAK; CASE(OP_put_var_ref_check_init): { int idx; idx = get_u16(pc); pc += 2; if (unlikely(!JS_IsUninitialized(*var_refs[idx]->pvalue))) { JS_ThrowReferenceErrorUninitialized(ctx, JS_ATOM_NULL); goto exception; } set_value(ctx, var_refs[idx]->pvalue, sp[-1]); sp--; } BREAK; CASE(OP_set_loc_uninitialized): { int idx; idx = get_u16(pc); pc += 2; set_value(ctx, &var_buf[idx], JS_UNINITIALIZED); } BREAK; CASE(OP_get_loc_check): { int idx; idx = get_u16(pc); pc += 2; if (unlikely(JS_IsUninitialized(var_buf[idx]))) { JS_ThrowReferenceErrorUninitialized(ctx, JS_ATOM_NULL); goto exception; } sp[0] = JS_DupValue(ctx, var_buf[idx]); sp++; } BREAK; CASE(OP_put_loc_check): { int idx; idx = get_u16(pc); pc += 2; if (unlikely(JS_IsUninitialized(var_buf[idx]))) { JS_ThrowReferenceErrorUninitialized(ctx, JS_ATOM_NULL); goto exception; } set_value(ctx, &var_buf[idx], sp[-1]); sp--; } BREAK; CASE(OP_put_loc_check_init): { int idx; idx = get_u16(pc); pc += 2; if (unlikely(!JS_IsUninitialized(var_buf[idx]))) { JS_ThrowReferenceError(ctx, "'this' can be initialized only once"); goto exception; } set_value(ctx, &var_buf[idx], sp[-1]); sp--; } BREAK; CASE(OP_close_loc): { int idx; idx = get_u16(pc); pc += 2; close_lexical_var(ctx, sf, idx, FALSE); } BREAK; CASE(OP_make_loc_ref): CASE(OP_make_arg_ref): CASE(OP_make_var_ref_ref): { JSVarRef *var_ref; JSProperty *pr; JSAtom atom; int idx; atom = get_u32(pc); idx = get_u16(pc + 4); pc += 6; *sp++ = JS_NewObjectProto(ctx, JS_NULL); if (unlikely(JS_IsException(sp[-1]))) goto exception; if (opcode == OP_make_var_ref_ref) { var_ref = var_refs[idx]; var_ref->header.ref_count++; } else { var_ref = get_var_ref(ctx, sf, idx, opcode == OP_make_arg_ref); if (!var_ref) goto exception; } pr = add_property(ctx, JS_VALUE_GET_OBJ(sp[-1]), atom, JS_PROP_WRITABLE | JS_PROP_VARREF); if (!pr) { free_var_ref(rt, var_ref); goto exception; } pr->u.var_ref = var_ref; *sp++ = JS_AtomToValue(ctx, atom); } BREAK; CASE(OP_make_var_ref): { JSAtom atom; atom = get_u32(pc); pc += 4; if (JS_GetGlobalVarRef(ctx, atom, sp)) goto exception; sp += 2; } BREAK; CASE(OP_goto): pc += (int32_t)get_u32(pc); if (unlikely(js_poll_interrupts(ctx))) goto exception; BREAK; #if SHORT_OPCODES CASE(OP_goto16): pc += (int16_t)get_u16(pc); if (unlikely(js_poll_interrupts(ctx))) goto exception; BREAK; CASE(OP_goto8): pc += (int8_t)pc[0]; if (unlikely(js_poll_interrupts(ctx))) goto exception; BREAK; #endif CASE(OP_if_true): { int res; JSValue op1; op1 = sp[-1]; pc += 4; if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) { res = JS_VALUE_GET_INT(op1); } else { res = JS_ToBoolFree(ctx, op1); } sp--; if (res) { pc += (int32_t)get_u32(pc - 4) - 4; } if (unlikely(js_poll_interrupts(ctx))) goto exception; } BREAK; CASE(OP_if_false): { int res; JSValue op1; op1 = sp[-1]; pc += 4; if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) { res = JS_VALUE_GET_INT(op1); } else { res = JS_ToBoolFree(ctx, op1); } sp--; if (!res) { pc += (int32_t)get_u32(pc - 4) - 4; } if (unlikely(js_poll_interrupts(ctx))) goto exception; } BREAK; #if SHORT_OPCODES CASE(OP_if_true8): { int res; JSValue op1; op1 = sp[-1]; pc += 1; if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) { res = JS_VALUE_GET_INT(op1); } else { res = JS_ToBoolFree(ctx, op1); } sp--; if (res) { pc += (int8_t)pc[-1] - 1; } if (unlikely(js_poll_interrupts(ctx))) goto exception; } BREAK; CASE(OP_if_false8): { int res; JSValue op1; op1 = sp[-1]; pc += 1; if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) { res = JS_VALUE_GET_INT(op1); } else { res = JS_ToBoolFree(ctx, op1); } sp--; if (!res) { pc += (int8_t)pc[-1] - 1; } if (unlikely(js_poll_interrupts(ctx))) goto exception; } BREAK; #endif CASE(OP_catch): { int32_t diff; diff = get_u32(pc); sp[0] = JS_NewCatchOffset(ctx, pc + diff - b->byte_code_buf); sp++; pc += 4; } BREAK; CASE(OP_gosub): { int32_t diff; diff = get_u32(pc); /* XXX: should have a different tag to avoid security flaw */ sp[0] = JS_NewInt32(ctx, pc + 4 - b->byte_code_buf); sp++; pc += diff; } BREAK; CASE(OP_ret): { JSValue op1; uint32_t pos; op1 = sp[-1]; if (unlikely(JS_VALUE_GET_TAG(op1) != JS_TAG_INT)) goto ret_fail; pos = JS_VALUE_GET_INT(op1); if (unlikely(pos >= b->byte_code_len)) { ret_fail: JS_ThrowInternalError(ctx, "invalid ret value"); goto exception; } sp--; pc = b->byte_code_buf + pos; } BREAK; CASE(OP_for_in_start): if (js_for_in_start(ctx, sp)) goto exception; BREAK; CASE(OP_for_in_next): if (js_for_in_next(ctx, sp)) goto exception; sp += 2; BREAK; CASE(OP_for_of_start): if (js_for_of_start(ctx, sp, FALSE)) goto exception; sp += 1; *sp++ = JS_NewCatchOffset(ctx, 0); BREAK; CASE(OP_for_of_next): { int offset = -3 - pc[0]; pc += 1; if (js_for_of_next(ctx, sp, offset)) goto exception; sp += 2; } BREAK; CASE(OP_for_await_of_start): if (js_for_of_start(ctx, sp, TRUE)) goto exception; sp += 1; *sp++ = JS_NewCatchOffset(ctx, 0); BREAK; CASE(OP_for_await_of_next): if (js_for_await_of_next(ctx, sp)) goto exception; sp += 1; BREAK; CASE(OP_iterator_get_value_done): if (js_iterator_get_value_done(ctx, sp)) goto exception; sp += 1; BREAK; CASE(OP_iterator_close): /* iter_obj next catch_offset -> */ sp--; /* drop the catch offset to avoid getting caught by exception */ JS_FreeValue(ctx, sp[-1]); /* drop the next method */ sp--; if (!JS_IsUndefined(sp[-1])) { if (JS_IteratorClose(ctx, sp[-1], FALSE)) goto exception; JS_FreeValue(ctx, sp[-1]); } sp--; BREAK; CASE(OP_iterator_close_return): { JSValue ret_val; /* iter_obj next catch_offset ... ret_val -> ret_eval iter_obj next catch_offset */ ret_val = *--sp; while (sp > stack_buf && JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_CATCH_OFFSET) { JS_FreeValue(ctx, *--sp); } if (unlikely(sp < stack_buf + 3)) { JS_ThrowInternalError(ctx, "iterator_close_return"); JS_FreeValue(ctx, ret_val); goto exception; } sp[0] = sp[-1]; sp[-1] = sp[-2]; sp[-2] = sp[-3]; sp[-3] = ret_val; sp++; } BREAK; CASE(OP_async_iterator_close): /* iter_obj next catch_offset -> value flag */ { JSValue ret, method; int ret_flag; sp--; /* remove the catch offset */ method = JS_GetProperty(ctx, sp[-2], JS_ATOM_return); if (JS_IsException(method)) goto exception; if (JS_IsUndefined(method) || JS_IsNull(method)) { ret = JS_UNDEFINED; ret_flag = TRUE; } else { ret = JS_CallFree(ctx, method, sp[-2], 0, NULL); if (JS_IsException(ret)) goto exception; if (!JS_IsObject(ret)) { JS_FreeValue(ctx, ret); JS_ThrowTypeErrorNotAnObject(ctx); goto exception; } ret_flag = FALSE; } JS_FreeValue(ctx, sp[-2]); JS_FreeValue(ctx, sp[-1]); sp[-2] = ret; sp[-1] = JS_NewBool(ctx, ret_flag); } BREAK; CASE(OP_async_iterator_next): /* stack: iter_obj next catch_offset val */ { JSValue ret; ret = JS_Call(ctx, sp[-3], sp[-4], 1, (JSValueConst *)(sp - 1)); if (JS_IsException(ret)) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = ret; } BREAK; CASE(OP_async_iterator_get): /* stack: iter_obj next catch_offset val */ { JSValue method, ret; BOOL ret_flag; int flags; flags = *pc++; /* XXX: use another opcode such as OP_throw_var */ if (flags == 2) { JS_ThrowTypeError(ctx, "iterator does not have a throw method"); goto exception; } method = JS_GetProperty(ctx, sp[-4], flags ? JS_ATOM_throw : JS_ATOM_return); if (JS_IsException(method)) goto exception; if (JS_IsUndefined(method) || JS_IsNull(method)) { ret_flag = TRUE; } else { ret = JS_CallFree(ctx, method, sp[-4], 1, (JSValueConst *)(sp - 1)); if (JS_IsException(ret)) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = ret; ret_flag = FALSE; } sp[0] = JS_NewBool(ctx, ret_flag); sp += 1; } BREAK; CASE(OP_lnot): { int res; JSValue op1; op1 = sp[-1]; if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) { res = JS_VALUE_GET_INT(op1) != 0; } else { res = JS_ToBoolFree(ctx, op1); } sp[-1] = JS_NewBool(ctx, !res); } BREAK; CASE(OP_get_field): { JSValue val; JSAtom atom; atom = get_u32(pc); pc += 4; val = JS_GetProperty(ctx, sp[-1], atom); if (unlikely(JS_IsException(val))) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = val; } BREAK; CASE(OP_get_field2): { JSValue val; JSAtom atom; atom = get_u32(pc); pc += 4; val = JS_GetProperty(ctx, sp[-1], atom); if (unlikely(JS_IsException(val))) goto exception; *sp++ = val; } BREAK; CASE(OP_put_field): { int ret; JSAtom atom; atom = get_u32(pc); pc += 4; ret = JS_SetPropertyInternal(ctx, sp[-2], atom, sp[-1], JS_PROP_THROW_STRICT); JS_FreeValue(ctx, sp[-2]); sp -= 2; if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_private_symbol): { JSAtom atom; JSValue val; atom = get_u32(pc); pc += 4; val = JS_NewSymbolFromAtom(ctx, atom, JS_ATOM_TYPE_PRIVATE); if (JS_IsException(val)) goto exception; *sp++ = val; } BREAK; CASE(OP_get_private_field): { JSValue val; val = JS_GetPrivateField(ctx, sp[-2], sp[-1]); JS_FreeValue(ctx, sp[-1]); JS_FreeValue(ctx, sp[-2]); sp[-2] = val; sp--; if (unlikely(JS_IsException(val))) goto exception; } BREAK; CASE(OP_put_private_field): { int ret; ret = JS_SetPrivateField(ctx, sp[-3], sp[-1], sp[-2]); JS_FreeValue(ctx, sp[-3]); JS_FreeValue(ctx, sp[-1]); sp -= 3; if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_define_private_field): { int ret; ret = JS_DefinePrivateField(ctx, sp[-3], sp[-2], sp[-1]); JS_FreeValue(ctx, sp[-2]); sp -= 2; if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_define_field): { int ret; JSAtom atom; atom = get_u32(pc); pc += 4; ret = JS_DefinePropertyValue(ctx, sp[-2], atom, sp[-1], JS_PROP_C_W_E | JS_PROP_THROW); sp--; if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_set_name): { int ret; JSAtom atom; atom = get_u32(pc); pc += 4; ret = JS_DefineObjectName(ctx, sp[-1], atom, JS_PROP_CONFIGURABLE); if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_set_name_computed): { int ret; ret = JS_DefineObjectNameComputed(ctx, sp[-1], sp[-2], JS_PROP_CONFIGURABLE); if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_set_proto): { JSValue proto; proto = sp[-1]; if (JS_IsObject(proto) || JS_IsNull(proto)) { if (JS_SetPrototypeInternal(ctx, sp[-2], proto, TRUE) < 0) goto exception; } JS_FreeValue(ctx, proto); sp--; } BREAK; CASE(OP_set_home_object): js_method_set_home_object(ctx, sp[-1], sp[-2]); BREAK; CASE(OP_define_method): CASE(OP_define_method_computed): { JSValue getter, setter, value; JSValueConst obj; JSAtom atom; int flags, ret, op_flags; BOOL is_computed; #define OP_DEFINE_METHOD_METHOD 0 #define OP_DEFINE_METHOD_GETTER 1 #define OP_DEFINE_METHOD_SETTER 2 #define OP_DEFINE_METHOD_ENUMERABLE 4 is_computed = (opcode == OP_define_method_computed); if (is_computed) { atom = JS_ValueToAtom(ctx, sp[-2]); if (unlikely(atom == JS_ATOM_NULL)) goto exception; opcode += OP_define_method - OP_define_method_computed; } else { atom = get_u32(pc); pc += 4; } op_flags = *pc++; obj = sp[-2 - is_computed]; flags = JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE | JS_PROP_HAS_ENUMERABLE | JS_PROP_THROW; if (op_flags & OP_DEFINE_METHOD_ENUMERABLE) flags |= JS_PROP_ENUMERABLE; op_flags &= 3; value = JS_UNDEFINED; getter = JS_UNDEFINED; setter = JS_UNDEFINED; if (op_flags == OP_DEFINE_METHOD_METHOD) { value = sp[-1]; flags |= JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE; } else if (op_flags == OP_DEFINE_METHOD_GETTER) { getter = sp[-1]; flags |= JS_PROP_HAS_GET; } else { setter = sp[-1]; flags |= JS_PROP_HAS_SET; } ret = js_method_set_properties(ctx, sp[-1], atom, flags, obj); if (ret >= 0) { ret = JS_DefineProperty(ctx, obj, atom, value, getter, setter, flags); } JS_FreeValue(ctx, sp[-1]); if (is_computed) { JS_FreeAtom(ctx, atom); JS_FreeValue(ctx, sp[-2]); } sp -= 1 + is_computed; if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_define_class): CASE(OP_define_class_computed): { int class_flags; JSAtom atom; atom = get_u32(pc); class_flags = pc[4]; pc += 5; if (js_op_define_class(ctx, sp, atom, class_flags, var_refs, sf, (opcode == OP_define_class_computed)) < 0) goto exception; } BREAK; CASE(OP_get_array_el): { JSValue val; val = JS_GetPropertyValue(ctx, sp[-2], sp[-1]); JS_FreeValue(ctx, sp[-2]); sp[-2] = val; sp--; if (unlikely(JS_IsException(val))) goto exception; } BREAK; CASE(OP_get_array_el2): { JSValue val; val = JS_GetPropertyValue(ctx, sp[-2], sp[-1]); sp[-1] = val; if (unlikely(JS_IsException(val))) goto exception; } BREAK; CASE(OP_get_ref_value): { JSValue val; if (unlikely(JS_IsUndefined(sp[-2]))) { JSAtom atom = JS_ValueToAtom(ctx, sp[-1]); if (atom != JS_ATOM_NULL) { JS_ThrowReferenceErrorNotDefined(ctx, atom); JS_FreeAtom(ctx, atom); } goto exception; } val = JS_GetPropertyValue(ctx, sp[-2], JS_DupValue(ctx, sp[-1])); if (unlikely(JS_IsException(val))) goto exception; sp[0] = val; sp++; } BREAK; CASE(OP_get_super_value): { JSValue val; JSAtom atom; atom = JS_ValueToAtom(ctx, sp[-1]); if (unlikely(atom == JS_ATOM_NULL)) goto exception; val = JS_GetPropertyInternal(ctx, sp[-2], atom, sp[-3], FALSE); JS_FreeAtom(ctx, atom); if (unlikely(JS_IsException(val))) goto exception; JS_FreeValue(ctx, sp[-1]); JS_FreeValue(ctx, sp[-2]); JS_FreeValue(ctx, sp[-3]); sp[-3] = val; sp -= 2; } BREAK; CASE(OP_put_array_el): { int ret; ret = JS_SetPropertyValue(ctx, sp[-3], sp[-2], sp[-1], JS_PROP_THROW_STRICT); JS_FreeValue(ctx, sp[-3]); sp -= 3; if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_put_ref_value): { int ret; if (unlikely(JS_IsUndefined(sp[-3]))) { if (is_strict_mode(ctx)) { JSAtom atom = JS_ValueToAtom(ctx, sp[-2]); if (atom != JS_ATOM_NULL) { JS_ThrowReferenceErrorNotDefined(ctx, atom); JS_FreeAtom(ctx, atom); } goto exception; } else { sp[-3] = JS_DupValue(ctx, ctx->global_obj); } } ret = JS_SetPropertyValue(ctx, sp[-3], sp[-2], sp[-1], JS_PROP_THROW_STRICT); JS_FreeValue(ctx, sp[-3]); sp -= 3; if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_put_super_value): { int ret; JSAtom atom; if (JS_VALUE_GET_TAG(sp[-3]) != JS_TAG_OBJECT) { JS_ThrowTypeErrorNotAnObject(ctx); goto exception; } atom = JS_ValueToAtom(ctx, sp[-2]); if (unlikely(atom == JS_ATOM_NULL)) goto exception; ret = JS_SetPropertyGeneric(ctx, JS_VALUE_GET_OBJ(sp[-3]), atom, sp[-1], sp[-4], JS_PROP_THROW_STRICT); JS_FreeAtom(ctx, atom); JS_FreeValue(ctx, sp[-4]); JS_FreeValue(ctx, sp[-3]); JS_FreeValue(ctx, sp[-2]); sp -= 4; if (ret < 0) goto exception; } BREAK; CASE(OP_define_array_el): { int ret; ret = JS_DefinePropertyValueValue(ctx, sp[-3], JS_DupValue(ctx, sp[-2]), sp[-1], JS_PROP_C_W_E | JS_PROP_THROW); sp -= 1; if (unlikely(ret < 0)) goto exception; } BREAK; CASE(OP_append): /* array pos enumobj -- array pos */ { if (js_append_enumerate(ctx, sp)) goto exception; JS_FreeValue(ctx, *--sp); } BREAK; CASE(OP_copy_data_properties): /* target source excludeList */ { /* stack offsets (-1 based): 2 bits for target, 3 bits for source, 2 bits for exclusionList */ int mask; mask = *pc++; if (JS_CopyDataProperties(ctx, sp[-1 - (mask & 3)], sp[-1 - ((mask >> 2) & 7)], sp[-1 - ((mask >> 5) & 7)], 0)) goto exception; } BREAK; CASE(OP_add): { JSValue op1, op2; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { int64_t r; r = (int64_t)JS_VALUE_GET_INT(op1) + JS_VALUE_GET_INT(op2); if (unlikely((int)r != r)) goto add_slow; sp[-2] = JS_NewInt32(ctx, r); sp--; } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) { sp[-2] = __JS_NewFloat64(ctx, JS_VALUE_GET_FLOAT64(op1) + JS_VALUE_GET_FLOAT64(op2)); sp--; } else { add_slow: if (js_add_slow(ctx, sp)) goto exception; sp--; } } BREAK; CASE(OP_add_loc): { JSValue ops[2]; int idx; idx = *pc; pc += 1; ops[0] = var_buf[idx]; ops[1] = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(ops[0], ops[1]))) { int64_t r; r = (int64_t)JS_VALUE_GET_INT(ops[0]) + JS_VALUE_GET_INT(ops[1]); if (unlikely((int)r != r)) goto add_loc_slow; var_buf[idx] = JS_NewInt32(ctx, r); sp--; } else if (JS_VALUE_GET_TAG(ops[0]) == JS_TAG_STRING) { sp--; ops[1] = JS_ToPrimitiveFree(ctx, ops[1], HINT_NONE); if (JS_IsException(ops[1])) { goto exception; } /* XXX: should not modify the variable in case of exception */ ops[0] = JS_ConcatString(ctx, ops[0], ops[1]); if (JS_IsException(ops[0])) { var_buf[idx] = JS_UNDEFINED; goto exception; } var_buf[idx] = ops[0]; } else { add_loc_slow: /* XXX: should not modify the variable in case of exception */ sp--; /* In case of exception, js_add_slow frees ops[0] and ops[1]. */ /* XXX: change API */ if (js_add_slow(ctx, ops + 2)) { var_buf[idx] = JS_UNDEFINED; goto exception; } var_buf[idx] = ops[0]; } } BREAK; CASE(OP_sub): { JSValue op1, op2; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { int64_t r; r = (int64_t)JS_VALUE_GET_INT(op1) - JS_VALUE_GET_INT(op2); if (unlikely((int)r != r)) goto binary_arith_slow; sp[-2] = JS_NewInt32(ctx, r); sp--; } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) { sp[-2] = __JS_NewFloat64(ctx, JS_VALUE_GET_FLOAT64(op1) - JS_VALUE_GET_FLOAT64(op2)); sp--; } else { goto binary_arith_slow; } } BREAK; CASE(OP_mul): { JSValue op1, op2; double d; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { int32_t v1, v2; int64_t r; v1 = JS_VALUE_GET_INT(op1); v2 = JS_VALUE_GET_INT(op2); r = (int64_t)v1 * v2; if (unlikely((int)r != r)) { #ifdef CONFIG_BIGNUM if (unlikely(sf->js_mode & JS_MODE_MATH) && (r < -MAX_SAFE_INTEGER || r > MAX_SAFE_INTEGER)) goto binary_arith_slow; #endif d = (double)r; goto mul_fp_res; } /* need to test zero case for -0 result */ if (unlikely(r == 0 && (v1 | v2) < 0)) { d = -0.0; goto mul_fp_res; } sp[-2] = JS_NewInt32(ctx, r); sp--; } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) { #ifdef CONFIG_BIGNUM if (unlikely(sf->js_mode & JS_MODE_MATH)) goto binary_arith_slow; #endif d = JS_VALUE_GET_FLOAT64(op1) * JS_VALUE_GET_FLOAT64(op2); mul_fp_res: sp[-2] = __JS_NewFloat64(ctx, d); sp--; } else { goto binary_arith_slow; } } BREAK; CASE(OP_div): { JSValue op1, op2; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { int v1, v2; if (unlikely(sf->js_mode & JS_MODE_MATH)) goto binary_arith_slow; v1 = JS_VALUE_GET_INT(op1); v2 = JS_VALUE_GET_INT(op2); sp[-2] = JS_NewFloat64(ctx, (double)v1 / (double)v2); sp--; } else { goto binary_arith_slow; } } BREAK; CASE(OP_mod): #ifdef CONFIG_BIGNUM CASE(OP_math_mod): #endif { JSValue op1, op2; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { int v1, v2, r; v1 = JS_VALUE_GET_INT(op1); v2 = JS_VALUE_GET_INT(op2); /* We must avoid v2 = 0, v1 = INT32_MIN and v2 = -1 and the cases where the result is -0. */ if (unlikely(v1 < 0 || v2 <= 0)) goto binary_arith_slow; r = v1 % v2; sp[-2] = JS_NewInt32(ctx, r); sp--; } else { goto binary_arith_slow; } } BREAK; CASE(OP_pow): binary_arith_slow: if (js_binary_arith_slow(ctx, sp, opcode)) goto exception; sp--; BREAK; CASE(OP_plus): { JSValue op1; uint32_t tag; op1 = sp[-1]; tag = JS_VALUE_GET_TAG(op1); if (tag == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag)) { } else { if (js_unary_arith_slow(ctx, sp, opcode)) goto exception; } } BREAK; CASE(OP_neg): { JSValue op1; uint32_t tag; int val; double d; op1 = sp[-1]; tag = JS_VALUE_GET_TAG(op1); if (tag == JS_TAG_INT) { val = JS_VALUE_GET_INT(op1); /* Note: -0 cannot be expressed as integer */ if (unlikely(val == 0)) { d = -0.0; goto neg_fp_res; } if (unlikely(val == INT32_MIN)) { d = -(double)val; goto neg_fp_res; } sp[-1] = JS_NewInt32(ctx, -val); } else if (JS_TAG_IS_FLOAT64(tag)) { d = -JS_VALUE_GET_FLOAT64(op1); neg_fp_res: sp[-1] = __JS_NewFloat64(ctx, d); } else { if (js_unary_arith_slow(ctx, sp, opcode)) goto exception; } } BREAK; CASE(OP_inc): { JSValue op1; int val; op1 = sp[-1]; if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) { val = JS_VALUE_GET_INT(op1); if (unlikely(val == INT32_MAX)) goto inc_slow; sp[-1] = JS_NewInt32(ctx, val + 1); } else { inc_slow: if (js_unary_arith_slow(ctx, sp, opcode)) goto exception; } } BREAK; CASE(OP_dec): { JSValue op1; int val; op1 = sp[-1]; if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) { val = JS_VALUE_GET_INT(op1); if (unlikely(val == INT32_MIN)) goto dec_slow; sp[-1] = JS_NewInt32(ctx, val - 1); } else { dec_slow: if (js_unary_arith_slow(ctx, sp, opcode)) goto exception; } } BREAK; CASE(OP_post_inc): CASE(OP_post_dec): if (js_post_inc_slow(ctx, sp, opcode)) goto exception; sp++; BREAK; CASE(OP_inc_loc): { JSValue op1; int val; int idx; idx = *pc; pc += 1; op1 = var_buf[idx]; if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) { val = JS_VALUE_GET_INT(op1); if (unlikely(val == INT32_MAX)) goto inc_loc_slow; var_buf[idx] = JS_NewInt32(ctx, val + 1); } else { inc_loc_slow: if (js_unary_arith_slow(ctx, var_buf + idx + 1, OP_inc)) goto exception; } } BREAK; CASE(OP_dec_loc): { JSValue op1; int val; int idx; idx = *pc; pc += 1; op1 = var_buf[idx]; if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) { val = JS_VALUE_GET_INT(op1); if (unlikely(val == INT32_MIN)) goto dec_loc_slow; var_buf[idx] = JS_NewInt32(ctx, val - 1); } else { dec_loc_slow: if (js_unary_arith_slow(ctx, var_buf + idx + 1, OP_dec)) goto exception; } } BREAK; CASE(OP_not): { JSValue op1; op1 = sp[-1]; if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) { sp[-1] = JS_NewInt32(ctx, ~JS_VALUE_GET_INT(op1)); } else { if (js_not_slow(ctx, sp)) goto exception; } } BREAK; CASE(OP_shl): { JSValue op1, op2; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { uint32_t v1, v2; v1 = JS_VALUE_GET_INT(op1); v2 = JS_VALUE_GET_INT(op2); #ifdef CONFIG_BIGNUM { int64_t r; if (unlikely(sf->js_mode & JS_MODE_MATH)) { if (v2 > 0x1f) goto shl_slow; r = (int64_t)v1 << v2; if ((int)r != r) goto shl_slow; } else { v2 &= 0x1f; } } #else v2 &= 0x1f; #endif sp[-2] = JS_NewInt32(ctx, v1 << v2); sp--; } else { #ifdef CONFIG_BIGNUM shl_slow: #endif if (js_binary_logic_slow(ctx, sp, opcode)) goto exception; sp--; } } BREAK; CASE(OP_shr): { JSValue op1, op2; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { uint32_t v2; v2 = JS_VALUE_GET_INT(op2); /* v1 >>> v2 retains its JS semantics if CONFIG_BIGNUM */ v2 &= 0x1f; sp[-2] = JS_NewUint32(ctx, (uint32_t)JS_VALUE_GET_INT(op1) >> v2); sp--; } else { if (js_shr_slow(ctx, sp)) goto exception; sp--; } } BREAK; CASE(OP_sar): { JSValue op1, op2; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { uint32_t v2; v2 = JS_VALUE_GET_INT(op2); #ifdef CONFIG_BIGNUM if (unlikely(v2 > 0x1f)) { if (unlikely(sf->js_mode & JS_MODE_MATH)) goto sar_slow; else v2 &= 0x1f; } #else v2 &= 0x1f; #endif sp[-2] = JS_NewInt32(ctx, (int)JS_VALUE_GET_INT(op1) >> v2); sp--; } else { #ifdef CONFIG_BIGNUM sar_slow: #endif if (js_binary_logic_slow(ctx, sp, opcode)) goto exception; sp--; } } BREAK; CASE(OP_and): { JSValue op1, op2; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { sp[-2] = JS_NewInt32(ctx, JS_VALUE_GET_INT(op1) & JS_VALUE_GET_INT(op2)); sp--; } else { if (js_binary_logic_slow(ctx, sp, opcode)) goto exception; sp--; } } BREAK; CASE(OP_or): { JSValue op1, op2; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { sp[-2] = JS_NewInt32(ctx, JS_VALUE_GET_INT(op1) | JS_VALUE_GET_INT(op2)); sp--; } else { if (js_binary_logic_slow(ctx, sp, opcode)) goto exception; sp--; } } BREAK; CASE(OP_xor): { JSValue op1, op2; op1 = sp[-2]; op2 = sp[-1]; if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { sp[-2] = JS_NewInt32(ctx, JS_VALUE_GET_INT(op1) ^ JS_VALUE_GET_INT(op2)); sp--; } else { if (js_binary_logic_slow(ctx, sp, opcode)) goto exception; sp--; } } BREAK; #define OP_CMP(opcode, binary_op, slow_call) \ CASE(opcode): \ { \ JSValue op1, op2; \ op1 = sp[-2]; \ op2 = sp[-1]; \ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { \ sp[-2] = JS_NewBool(ctx, JS_VALUE_GET_INT(op1) binary_op JS_VALUE_GET_INT(op2)); \ sp--; \ } else { \ if (slow_call) \ goto exception; \ sp--; \ } \ } \ BREAK OP_CMP(OP_lt, <, js_relational_slow(ctx, sp, opcode)); OP_CMP(OP_lte, <=, js_relational_slow(ctx, sp, opcode)); OP_CMP(OP_gt, >, js_relational_slow(ctx, sp, opcode)); OP_CMP(OP_gte, >=, js_relational_slow(ctx, sp, opcode)); OP_CMP(OP_eq, ==, js_eq_slow(ctx, sp, 0)); OP_CMP(OP_neq, !=, js_eq_slow(ctx, sp, 1)); OP_CMP(OP_strict_eq, ==, js_strict_eq_slow(ctx, sp, 0)); OP_CMP(OP_strict_neq, !=, js_strict_eq_slow(ctx, sp, 1)); #ifdef CONFIG_BIGNUM CASE(OP_mul_pow10): if (rt->bigfloat_ops.mul_pow10(ctx, sp)) goto exception; sp--; BREAK; #endif CASE(OP_in): if (js_operator_in(ctx, sp)) goto exception; sp--; BREAK; CASE(OP_instanceof): if (js_operator_instanceof(ctx, sp)) goto exception; sp--; BREAK; CASE(OP_typeof): { JSValue op1; JSAtom atom; op1 = sp[-1]; atom = js_operator_typeof(ctx, op1); JS_FreeValue(ctx, op1); sp[-1] = JS_AtomToString(ctx, atom); } BREAK; CASE(OP_delete): if (js_operator_delete(ctx, sp)) goto exception; sp--; BREAK; CASE(OP_delete_var): { JSAtom atom; int ret; atom = get_u32(pc); pc += 4; ret = JS_DeleteProperty(ctx, ctx->global_obj, atom, 0); if (unlikely(ret < 0)) goto exception; *sp++ = JS_NewBool(ctx, ret); } BREAK; CASE(OP_to_object): if (JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_OBJECT) { ret_val = JS_ToObject(ctx, sp[-1]); if (JS_IsException(ret_val)) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = ret_val; } BREAK; CASE(OP_to_propkey): switch (JS_VALUE_GET_TAG(sp[-1])) { case JS_TAG_INT: case JS_TAG_STRING: case JS_TAG_SYMBOL: break; default: ret_val = JS_ToPropertyKey(ctx, sp[-1]); if (JS_IsException(ret_val)) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = ret_val; break; } BREAK; CASE(OP_to_propkey2): /* must be tested first */ if (unlikely(JS_IsUndefined(sp[-2]) || JS_IsNull(sp[-2]))) { JS_ThrowTypeError(ctx, "value has no property"); goto exception; } switch (JS_VALUE_GET_TAG(sp[-1])) { case JS_TAG_INT: case JS_TAG_STRING: case JS_TAG_SYMBOL: break; default: ret_val = JS_ToPropertyKey(ctx, sp[-1]); if (JS_IsException(ret_val)) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = ret_val; break; } BREAK; #if 0 CASE(OP_to_string): if (JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_STRING) { ret_val = JS_ToString(ctx, sp[-1]); if (JS_IsException(ret_val)) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = ret_val; } BREAK; #endif CASE(OP_with_get_var): CASE(OP_with_put_var): CASE(OP_with_delete_var): CASE(OP_with_make_ref): CASE(OP_with_get_ref): CASE(OP_with_get_ref_undef): { JSAtom atom; int32_t diff; JSValue obj, val; int ret, is_with; atom = get_u32(pc); diff = get_u32(pc + 4); is_with = pc[8]; pc += 9; obj = sp[-1]; ret = JS_HasProperty(ctx, obj, atom); if (unlikely(ret < 0)) goto exception; if (ret) { if (is_with) { ret = js_has_unscopable(ctx, obj, atom); if (unlikely(ret < 0)) goto exception; if (ret) goto no_with; } switch (opcode) { case OP_with_get_var: val = JS_GetProperty(ctx, obj, atom); if (unlikely(JS_IsException(val))) goto exception; set_value(ctx, &sp[-1], val); break; case OP_with_put_var: ret = JS_SetPropertyInternal(ctx, obj, atom, sp[-2], JS_PROP_THROW_STRICT); JS_FreeValue(ctx, sp[-1]); sp -= 2; if (unlikely(ret < 0)) goto exception; break; case OP_with_delete_var: ret = JS_DeleteProperty(ctx, obj, atom, 0); if (unlikely(ret < 0)) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = JS_NewBool(ctx, ret); break; case OP_with_make_ref: /* produce a pair object/propname on the stack */ *sp++ = JS_AtomToValue(ctx, atom); break; case OP_with_get_ref: /* produce a pair object/method on the stack */ val = JS_GetProperty(ctx, obj, atom); if (unlikely(JS_IsException(val))) goto exception; *sp++ = val; break; case OP_with_get_ref_undef: /* produce a pair undefined/function on the stack */ val = JS_GetProperty(ctx, obj, atom); if (unlikely(JS_IsException(val))) goto exception; JS_FreeValue(ctx, sp[-1]); sp[-1] = JS_UNDEFINED; *sp++ = val; break; } pc += diff - 5; } else { no_with: /* if not jumping, drop the object argument */ JS_FreeValue(ctx, sp[-1]); sp--; } } BREAK; CASE(OP_await): ret_val = JS_NewInt32(ctx, FUNC_RET_AWAIT); goto done_generator; CASE(OP_yield): ret_val = JS_NewInt32(ctx, FUNC_RET_YIELD); goto done_generator; CASE(OP_yield_star): CASE(OP_async_yield_star): ret_val = JS_NewInt32(ctx, FUNC_RET_YIELD_STAR); goto done_generator; CASE(OP_return_async): CASE(OP_initial_yield): ret_val = JS_UNDEFINED; goto done_generator; CASE(OP_nop): BREAK; CASE(OP_is_undefined_or_null): if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_UNDEFINED || JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_NULL) { goto set_true; } else { goto free_and_set_false; } #if SHORT_OPCODES CASE(OP_is_undefined): if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_UNDEFINED) { goto set_true; } else { goto free_and_set_false; } CASE(OP_is_null): if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_NULL) { goto set_true; } else { goto free_and_set_false; } CASE(OP_is_function): if (js_operator_typeof(ctx, sp[-1]) == JS_ATOM_function) { goto free_and_set_true; } else { goto free_and_set_false; } free_and_set_true: JS_FreeValue(ctx, sp[-1]); #endif set_true: sp[-1] = JS_TRUE; BREAK; free_and_set_false: JS_FreeValue(ctx, sp[-1]); sp[-1] = JS_FALSE; BREAK; CASE(OP_invalid): DEFAULT: JS_ThrowInternalError(ctx, "invalid opcode: pc=%u opcode=0x%02x", (int)(pc - b->byte_code_buf - 1), opcode); goto exception; } } exception: if (is_backtrace_needed(ctx, rt->current_exception)) { /* add the backtrace information now (it is not done before if the exception happens in a bytecode operation */ sf->cur_pc = pc; build_backtrace(ctx, rt->current_exception, NULL, 0, 0); } if (!JS_IsUncatchableError(ctx, rt->current_exception)) { while (sp > stack_buf) { JSValue val = *--sp; JS_FreeValue(ctx, val); if (JS_VALUE_GET_TAG(val) == JS_TAG_CATCH_OFFSET) { int pos = JS_VALUE_GET_INT(val); if (pos == 0) { /* enumerator: close it with a throw */ JS_FreeValue(ctx, sp[-1]); /* drop the next method */ sp--; JS_IteratorClose(ctx, sp[-1], TRUE); } else { *sp++ = rt->current_exception; rt->current_exception = JS_NULL; pc = b->byte_code_buf + pos; goto restart; } } } } ret_val = JS_EXCEPTION; /* the local variables are freed by the caller in the generator case. Hence the label 'done' should never be reached in a generator function. */ if (b->func_kind != JS_FUNC_NORMAL) { done_generator: sf->cur_pc = pc; sf->cur_sp = sp; } else { done: if (unlikely(!list_empty(&sf->var_ref_list))) { /* variable references reference the stack: must close them */ close_var_refs(rt, sf); } /* free the local variables and stack */ for(pval = local_buf; pval < sp; pval++) { JS_FreeValue(ctx, *pval); } } rt->current_stack_frame = sf->prev_frame; return ret_val; } JSValue JS_Call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv) { return JS_CallInternal(ctx, func_obj, this_obj, JS_UNDEFINED, argc, (JSValue *)argv, JS_CALL_FLAG_COPY_ARGV); } static JSValue JS_CallFree(JSContext *ctx, JSValue func_obj, JSValueConst this_obj, int argc, JSValueConst *argv) { JSValue res = JS_CallInternal(ctx, func_obj, this_obj, JS_UNDEFINED, argc, (JSValue *)argv, JS_CALL_FLAG_COPY_ARGV); JS_FreeValue(ctx, func_obj); return res; } /* warning: the refcount of the context is not incremented. Return NULL in case of exception (case of revoked proxy only) */ static JSContext *JS_GetFunctionRealm(JSContext *ctx, JSValueConst func_obj) { JSObject *p; JSContext *realm; if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT) return ctx; p = JS_VALUE_GET_OBJ(func_obj); switch(p->class_id) { case JS_CLASS_C_FUNCTION: realm = p->u.cfunc.realm; break; case JS_CLASS_BYTECODE_FUNCTION: case JS_CLASS_GENERATOR_FUNCTION: case JS_CLASS_ASYNC_FUNCTION: case JS_CLASS_ASYNC_GENERATOR_FUNCTION: { JSFunctionBytecode *b; b = p->u.func.function_bytecode; realm = b->realm; } break; case JS_CLASS_PROXY: { JSProxyData *s = p->u.opaque; if (!s) return ctx; if (s->is_revoked) { JS_ThrowTypeErrorRevokedProxy(ctx); return NULL; } else { realm = JS_GetFunctionRealm(ctx, s->target); } } break; case JS_CLASS_BOUND_FUNCTION: { JSBoundFunction *bf = p->u.bound_function; realm = JS_GetFunctionRealm(ctx, bf->func_obj); } break; default: realm = ctx; break; } return realm; } static JSValue js_create_from_ctor(JSContext *ctx, JSValueConst ctor, int class_id) { JSValue proto, obj; JSContext *realm; if (JS_IsUndefined(ctor)) { proto = JS_DupValue(ctx, ctx->class_proto[class_id]); } else { proto = JS_GetProperty(ctx, ctor, JS_ATOM_prototype); if (JS_IsException(proto)) return proto; if (!JS_IsObject(proto)) { JS_FreeValue(ctx, proto); realm = JS_GetFunctionRealm(ctx, ctor); if (!realm) return JS_EXCEPTION; proto = JS_DupValue(ctx, realm->class_proto[class_id]); } } obj = JS_NewObjectProtoClass(ctx, proto, class_id); JS_FreeValue(ctx, proto); return obj; } /* argv[] is modified if (flags & JS_CALL_FLAG_COPY_ARGV) = 0. */ static JSValue JS_CallConstructorInternal(JSContext *ctx, JSValueConst func_obj, JSValueConst new_target, int argc, JSValue *argv, int flags) { JSObject *p; JSFunctionBytecode *b; if (js_poll_interrupts(ctx)) return JS_EXCEPTION; flags |= JS_CALL_FLAG_CONSTRUCTOR; if (unlikely(JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)) goto not_a_function; p = JS_VALUE_GET_OBJ(func_obj); if (unlikely(!p->is_constructor)) return JS_ThrowTypeError(ctx, "not a constructor"); if (unlikely(p->class_id != JS_CLASS_BYTECODE_FUNCTION)) { JSClassCall *call_func; call_func = ctx->rt->class_array[p->class_id].call; if (!call_func) { not_a_function: return JS_ThrowTypeError(ctx, "not a function"); } return call_func(ctx, func_obj, new_target, argc, (JSValueConst *)argv, flags); } b = p->u.func.function_bytecode; if (b->is_derived_class_constructor) { return JS_CallInternal(ctx, func_obj, JS_UNDEFINED, new_target, argc, argv, flags); } else { JSValue obj, ret; /* legacy constructor behavior */ obj = js_create_from_ctor(ctx, new_target, JS_CLASS_OBJECT); if (JS_IsException(obj)) return JS_EXCEPTION; ret = JS_CallInternal(ctx, func_obj, obj, new_target, argc, argv, flags); if (JS_VALUE_GET_TAG(ret) == JS_TAG_OBJECT || JS_IsException(ret)) { JS_FreeValue(ctx, obj); return ret; } else { JS_FreeValue(ctx, ret); return obj; } } } JSValue JS_CallConstructor2(JSContext *ctx, JSValueConst func_obj, JSValueConst new_target, int argc, JSValueConst *argv) { return JS_CallConstructorInternal(ctx, func_obj, new_target, argc, (JSValue *)argv, JS_CALL_FLAG_COPY_ARGV); } JSValue JS_CallConstructor(JSContext *ctx, JSValueConst func_obj, int argc, JSValueConst *argv) { return JS_CallConstructorInternal(ctx, func_obj, func_obj, argc, (JSValue *)argv, JS_CALL_FLAG_COPY_ARGV); } JSValue JS_Invoke(JSContext *ctx, JSValueConst this_val, JSAtom atom, int argc, JSValueConst *argv) { JSValue func_obj; func_obj = JS_GetProperty(ctx, this_val, atom); if (JS_IsException(func_obj)) return func_obj; return JS_CallFree(ctx, func_obj, this_val, argc, argv); } static JSValue JS_InvokeFree(JSContext *ctx, JSValue this_val, JSAtom atom, int argc, JSValueConst *argv) { JSValue res = JS_Invoke(ctx, this_val, atom, argc, argv); JS_FreeValue(ctx, this_val); return res; } /* JSAsyncFunctionState (used by generator and async functions) */ static __exception int async_func_init(JSContext *ctx, JSAsyncFunctionState *s, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv) { JSObject *p; JSFunctionBytecode *b; JSStackFrame *sf; int local_count, i, arg_buf_len, n; sf = &s->frame; init_list_head(&sf->var_ref_list); p = JS_VALUE_GET_OBJ(func_obj); b = p->u.func.function_bytecode; sf->js_mode = b->js_mode; sf->cur_pc = b->byte_code_buf; arg_buf_len = max_int(b->arg_count, argc); local_count = arg_buf_len + b->var_count + b->stack_size; sf->arg_buf = js_malloc(ctx, sizeof(JSValue) * max_int(local_count, 1)); if (!sf->arg_buf) return -1; sf->cur_func = JS_DupValue(ctx, func_obj); s->this_val = JS_DupValue(ctx, this_obj); s->argc = argc; sf->arg_count = arg_buf_len; sf->var_buf = sf->arg_buf + arg_buf_len; sf->cur_sp = sf->var_buf + b->var_count; for(i = 0; i < argc; i++) sf->arg_buf[i] = JS_DupValue(ctx, argv[i]); n = arg_buf_len + b->var_count; for(i = argc; i < n; i++) sf->arg_buf[i] = JS_UNDEFINED; return 0; } static void async_func_mark(JSRuntime *rt, JSAsyncFunctionState *s, JS_MarkFunc *mark_func) { JSStackFrame *sf; JSValue *sp; sf = &s->frame; JS_MarkValue(rt, sf->cur_func, mark_func); JS_MarkValue(rt, s->this_val, mark_func); if (sf->cur_sp) { /* if the function is running, cur_sp is not known so we cannot mark the stack. Marking the variables is not needed because a running function cannot be part of a removable cycle */ for(sp = sf->arg_buf; sp < sf->cur_sp; sp++) JS_MarkValue(rt, *sp, mark_func); } } static void async_func_free(JSRuntime *rt, JSAsyncFunctionState *s) { JSStackFrame *sf; JSValue *sp; sf = &s->frame; /* close the closure variables. */ close_var_refs(rt, sf); if (sf->arg_buf) { /* cannot free the function if it is running */ assert(sf->cur_sp != NULL); for(sp = sf->arg_buf; sp < sf->cur_sp; sp++) { JS_FreeValueRT(rt, *sp); } js_free_rt(rt, sf->arg_buf); } JS_FreeValueRT(rt, sf->cur_func); JS_FreeValueRT(rt, s->this_val); } static JSValue async_func_resume(JSContext *ctx, JSAsyncFunctionState *s) { JSValue func_obj; if (js_check_stack_overflow(ctx->rt, 0)) return JS_ThrowStackOverflow(ctx); /* the tag does not matter provided it is not an object */ func_obj = JS_MKPTR(JS_TAG_INT, s); return JS_CallInternal(ctx, func_obj, s->this_val, JS_UNDEFINED, s->argc, s->frame.arg_buf, JS_CALL_FLAG_GENERATOR); } /* Generators */ typedef enum JSGeneratorStateEnum { JS_GENERATOR_STATE_SUSPENDED_START, JS_GENERATOR_STATE_SUSPENDED_YIELD, JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR, JS_GENERATOR_STATE_EXECUTING, JS_GENERATOR_STATE_COMPLETED, } JSGeneratorStateEnum; typedef struct JSGeneratorData { JSGeneratorStateEnum state; JSAsyncFunctionState func_state; } JSGeneratorData; static void free_generator_stack_rt(JSRuntime *rt, JSGeneratorData *s) { if (s->state == JS_GENERATOR_STATE_COMPLETED) return; async_func_free(rt, &s->func_state); s->state = JS_GENERATOR_STATE_COMPLETED; } static void js_generator_finalizer(JSRuntime *rt, JSValue obj) { JSGeneratorData *s = JS_GetOpaque(obj, JS_CLASS_GENERATOR); if (s) { free_generator_stack_rt(rt, s); js_free_rt(rt, s); } } static void free_generator_stack(JSContext *ctx, JSGeneratorData *s) { free_generator_stack_rt(ctx->rt, s); } static void js_generator_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { JSObject *p = JS_VALUE_GET_OBJ(val); JSGeneratorData *s = p->u.generator_data; if (!s || s->state == JS_GENERATOR_STATE_COMPLETED) return; async_func_mark(rt, &s->func_state, mark_func); } /* XXX: use enum */ #define GEN_MAGIC_NEXT 0 #define GEN_MAGIC_RETURN 1 #define GEN_MAGIC_THROW 2 static JSValue js_generator_next(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, BOOL *pdone, int magic) { JSGeneratorData *s = JS_GetOpaque(this_val, JS_CLASS_GENERATOR); JSStackFrame *sf; JSValue ret, func_ret; JSValueConst iter_args[1]; *pdone = TRUE; if (!s) return JS_ThrowTypeError(ctx, "not a generator"); sf = &s->func_state.frame; redo: switch(s->state) { default: case JS_GENERATOR_STATE_SUSPENDED_START: if (magic == GEN_MAGIC_NEXT) { goto exec_no_arg; } else { free_generator_stack(ctx, s); goto done; } break; case JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR: { int done; JSValue method, iter_obj; iter_obj = sf->cur_sp[-2]; if (magic == GEN_MAGIC_NEXT) { method = JS_DupValue(ctx, sf->cur_sp[-1]); } else { method = JS_GetProperty(ctx, iter_obj, magic == GEN_MAGIC_RETURN ? JS_ATOM_return : JS_ATOM_throw); if (JS_IsException(method)) goto iter_exception; } if (magic != GEN_MAGIC_NEXT && (JS_IsUndefined(method) || JS_IsNull(method))) { /* default action */ if (magic == GEN_MAGIC_RETURN) { ret = JS_DupValue(ctx, argv[0]); goto iter_done; } else { if (JS_IteratorClose(ctx, iter_obj, FALSE)) goto iter_exception; JS_ThrowTypeError(ctx, "iterator does not have a throw method"); goto iter_exception; } } ret = JS_IteratorNext2(ctx, iter_obj, method, argc, argv, &done); JS_FreeValue(ctx, method); if (JS_IsException(ret)) { iter_exception: goto exec_throw; } /* if not done, the iterator returns the exact object returned by 'method' */ if (done == 2) { JSValue done_val, value; done_val = JS_GetProperty(ctx, ret, JS_ATOM_done); if (JS_IsException(done_val)) { JS_FreeValue(ctx, ret); goto iter_exception; } done = JS_ToBoolFree(ctx, done_val); if (done) { value = JS_GetProperty(ctx, ret, JS_ATOM_value); JS_FreeValue(ctx, ret); if (JS_IsException(value)) goto iter_exception; ret = value; goto iter_done; } else { *pdone = 2; } } else { if (done) { /* 'yield *' returns the value associated to done = true */ iter_done: JS_FreeValue(ctx, sf->cur_sp[-2]); JS_FreeValue(ctx, sf->cur_sp[-1]); sf->cur_sp--; goto exec_arg; } else { *pdone = FALSE; } } break; } break; case JS_GENERATOR_STATE_SUSPENDED_YIELD: /* cur_sp[-1] was set to JS_UNDEFINED in the previous call */ ret = JS_DupValue(ctx, argv[0]); if (magic == GEN_MAGIC_THROW) { JS_Throw(ctx, ret); exec_throw: s->func_state.throw_flag = TRUE; } else { exec_arg: sf->cur_sp[-1] = ret; sf->cur_sp[0] = JS_NewBool(ctx, (magic == GEN_MAGIC_RETURN)); sf->cur_sp++; exec_no_arg: s->func_state.throw_flag = FALSE; } s->state = JS_GENERATOR_STATE_EXECUTING; func_ret = async_func_resume(ctx, &s->func_state); s->state = JS_GENERATOR_STATE_SUSPENDED_YIELD; if (JS_IsException(func_ret)) { /* finalize the execution in case of exception */ free_generator_stack(ctx, s); return func_ret; } if (JS_VALUE_GET_TAG(func_ret) == JS_TAG_INT) { if (JS_VALUE_GET_INT(func_ret) == FUNC_RET_YIELD_STAR) { /* 'yield *' */ s->state = JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR; iter_args[0] = JS_UNDEFINED; argc = 1; argv = iter_args; goto redo; } else { /* get the return the yield value at the top of the stack */ ret = sf->cur_sp[-1]; sf->cur_sp[-1] = JS_UNDEFINED; *pdone = FALSE; } } else { /* end of iterator */ ret = sf->cur_sp[-1]; sf->cur_sp[-1] = JS_UNDEFINED; JS_FreeValue(ctx, func_ret); free_generator_stack(ctx, s); } break; case JS_GENERATOR_STATE_COMPLETED: done: /* execution is finished */ switch(magic) { default: case GEN_MAGIC_NEXT: ret = JS_UNDEFINED; break; case GEN_MAGIC_RETURN: ret = JS_DupValue(ctx, argv[0]); break; case GEN_MAGIC_THROW: ret = JS_Throw(ctx, JS_DupValue(ctx, argv[0])); break; } break; case JS_GENERATOR_STATE_EXECUTING: ret = JS_ThrowTypeError(ctx, "cannot invoke a running generator"); break; } return ret; } static JSValue js_generator_function_call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv, int flags) { JSValue obj, func_ret; JSGeneratorData *s; s = js_mallocz(ctx, sizeof(*s)); if (!s) return JS_EXCEPTION; s->state = JS_GENERATOR_STATE_SUSPENDED_START; if (async_func_init(ctx, &s->func_state, func_obj, this_obj, argc, argv)) { s->state = JS_GENERATOR_STATE_COMPLETED; goto fail; } /* execute the function up to 'OP_initial_yield' */ func_ret = async_func_resume(ctx, &s->func_state); if (JS_IsException(func_ret)) goto fail; JS_FreeValue(ctx, func_ret); obj = js_create_from_ctor(ctx, func_obj, JS_CLASS_GENERATOR); if (JS_IsException(obj)) goto fail; JS_SetOpaque(obj, s); return obj; fail: free_generator_stack_rt(ctx->rt, s); js_free(ctx, s); return JS_EXCEPTION; } /* AsyncFunction */ static void js_async_function_terminate(JSRuntime *rt, JSAsyncFunctionData *s) { if (s->is_active) { async_func_free(rt, &s->func_state); s->is_active = FALSE; } } static void js_async_function_free0(JSRuntime *rt, JSAsyncFunctionData *s) { js_async_function_terminate(rt, s); JS_FreeValueRT(rt, s->resolving_funcs[0]); JS_FreeValueRT(rt, s->resolving_funcs[1]); remove_gc_object(&s->header); js_free_rt(rt, s); } static void js_async_function_free(JSRuntime *rt, JSAsyncFunctionData *s) { if (--s->header.ref_count == 0) { js_async_function_free0(rt, s); } } static void js_async_function_resolve_finalizer(JSRuntime *rt, JSValue val) { JSObject *p = JS_VALUE_GET_OBJ(val); JSAsyncFunctionData *s = p->u.async_function_data; if (s) { js_async_function_free(rt, s); } } static void js_async_function_resolve_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { JSObject *p = JS_VALUE_GET_OBJ(val); JSAsyncFunctionData *s = p->u.async_function_data; if (s) { mark_func(rt, &s->header); } } static int js_async_function_resolve_create(JSContext *ctx, JSAsyncFunctionData *s, JSValue *resolving_funcs) { int i; JSObject *p; for(i = 0; i < 2; i++) { resolving_funcs[i] = JS_NewObjectProtoClass(ctx, ctx->function_proto, JS_CLASS_ASYNC_FUNCTION_RESOLVE + i); if (JS_IsException(resolving_funcs[i])) { if (i == 1) JS_FreeValue(ctx, resolving_funcs[0]); return -1; } p = JS_VALUE_GET_OBJ(resolving_funcs[i]); s->header.ref_count++; p->u.async_function_data = s; } return 0; } static void js_async_function_resume(JSContext *ctx, JSAsyncFunctionData *s) { JSValue func_ret, ret2; func_ret = async_func_resume(ctx, &s->func_state); if (JS_IsException(func_ret)) { JSValue error; fail: error = JS_GetException(ctx); ret2 = JS_Call(ctx, s->resolving_funcs[1], JS_UNDEFINED, 1, (JSValueConst *)&error); JS_FreeValue(ctx, error); js_async_function_terminate(ctx->rt, s); JS_FreeValue(ctx, ret2); /* XXX: what to do if exception ? */ } else { JSValue value; value = s->func_state.frame.cur_sp[-1]; s->func_state.frame.cur_sp[-1] = JS_UNDEFINED; if (JS_IsUndefined(func_ret)) { /* function returned */ ret2 = JS_Call(ctx, s->resolving_funcs[0], JS_UNDEFINED, 1, (JSValueConst *)&value); JS_FreeValue(ctx, ret2); /* XXX: what to do if exception ? */ JS_FreeValue(ctx, value); js_async_function_terminate(ctx->rt, s); } else { JSValue promise, resolving_funcs[2], resolving_funcs1[2]; int i, res; /* await */ JS_FreeValue(ctx, func_ret); /* not used */ promise = js_promise_resolve(ctx, ctx->promise_ctor, 1, (JSValueConst *)&value, 0); JS_FreeValue(ctx, value); if (JS_IsException(promise)) goto fail; if (js_async_function_resolve_create(ctx, s, resolving_funcs)) { JS_FreeValue(ctx, promise); goto fail; } /* Note: no need to create 'thrownawayCapability' as in the spec */ for(i = 0; i < 2; i++) resolving_funcs1[i] = JS_UNDEFINED; res = perform_promise_then(ctx, promise, (JSValueConst *)resolving_funcs, (JSValueConst *)resolving_funcs1); JS_FreeValue(ctx, promise); for(i = 0; i < 2; i++) JS_FreeValue(ctx, resolving_funcs[i]); if (res) goto fail; } } } static JSValue js_async_function_resolve_call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv, int flags) { JSObject *p = JS_VALUE_GET_OBJ(func_obj); JSAsyncFunctionData *s = p->u.async_function_data; BOOL is_reject = p->class_id - JS_CLASS_ASYNC_FUNCTION_RESOLVE; JSValueConst arg; if (argc > 0) arg = argv[0]; else arg = JS_UNDEFINED; s->func_state.throw_flag = is_reject; if (is_reject) { JS_Throw(ctx, JS_DupValue(ctx, arg)); } else { /* return value of await */ s->func_state.frame.cur_sp[-1] = JS_DupValue(ctx, arg); } js_async_function_resume(ctx, s); return JS_UNDEFINED; } static JSValue js_async_function_call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv, int flags) { JSValue promise; JSAsyncFunctionData *s; s = js_mallocz(ctx, sizeof(*s)); if (!s) return JS_EXCEPTION; s->header.ref_count = 1; add_gc_object(ctx->rt, &s->header, JS_GC_OBJ_TYPE_ASYNC_FUNCTION); s->is_active = FALSE; s->resolving_funcs[0] = JS_UNDEFINED; s->resolving_funcs[1] = JS_UNDEFINED; promise = JS_NewPromiseCapability(ctx, s->resolving_funcs); if (JS_IsException(promise)) goto fail; if (async_func_init(ctx, &s->func_state, func_obj, this_obj, argc, argv)) { fail: JS_FreeValue(ctx, promise); js_async_function_free(ctx->rt, s); return JS_EXCEPTION; } s->is_active = TRUE; js_async_function_resume(ctx, s); js_async_function_free(ctx->rt, s); return promise; } /* AsyncGenerator */ typedef enum JSAsyncGeneratorStateEnum { JS_ASYNC_GENERATOR_STATE_SUSPENDED_START, JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD, JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR, JS_ASYNC_GENERATOR_STATE_EXECUTING, JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN, JS_ASYNC_GENERATOR_STATE_COMPLETED, } JSAsyncGeneratorStateEnum; typedef struct JSAsyncGeneratorRequest { struct list_head link; /* completion */ int completion_type; /* GEN_MAGIC_x */ JSValue result; /* promise capability */ JSValue promise; JSValue resolving_funcs[2]; } JSAsyncGeneratorRequest; typedef struct JSAsyncGeneratorData { JSObject *generator; /* back pointer to the object (const) */ JSAsyncGeneratorStateEnum state; JSAsyncFunctionState func_state; struct list_head queue; /* list of JSAsyncGeneratorRequest.link */ } JSAsyncGeneratorData; static void js_async_generator_free(JSRuntime *rt, JSAsyncGeneratorData *s) { struct list_head *el, *el1; JSAsyncGeneratorRequest *req; list_for_each_safe(el, el1, &s->queue) { req = list_entry(el, JSAsyncGeneratorRequest, link); JS_FreeValueRT(rt, req->result); JS_FreeValueRT(rt, req->promise); JS_FreeValueRT(rt, req->resolving_funcs[0]); JS_FreeValueRT(rt, req->resolving_funcs[1]); js_free_rt(rt, req); } if (s->state != JS_ASYNC_GENERATOR_STATE_COMPLETED && s->state != JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN) { async_func_free(rt, &s->func_state); } js_free_rt(rt, s); } static void js_async_generator_finalizer(JSRuntime *rt, JSValue obj) { JSAsyncGeneratorData *s = JS_GetOpaque(obj, JS_CLASS_ASYNC_GENERATOR); if (s) { js_async_generator_free(rt, s); } } static void js_async_generator_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func) { JSAsyncGeneratorData *s = JS_GetOpaque(val, JS_CLASS_ASYNC_GENERATOR); struct list_head *el; JSAsyncGeneratorRequest *req; if (s) { list_for_each(el, &s->queue) { req = list_entry(el, JSAsyncGeneratorRequest, link); JS_MarkValue(rt, req->result, mark_func); JS_MarkValue(rt, req->promise, mark_func); JS_MarkValue(rt, req->resolving_funcs[0], mark_func); JS_MarkValue(rt, req->resolving_funcs[1], mark_func); } if (s->state != JS_ASYNC_GENERATOR_STATE_COMPLETED && s->state != JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN) { async_func_mark(rt, &s->func_state, mark_func); } } } static JSValue js_async_generator_resolve_function(JSContext *ctx, JSValueConst this_obj, int argc, JSValueConst *argv, int magic, JSValue *func_data); static int js_async_generator_resolve_function_create(JSContext *ctx, JSValueConst generator, JSValue *resolving_funcs, BOOL is_resume_next) { int i; JSValue func; for(i = 0; i < 2; i++) { func = JS_NewCFunctionData(ctx, js_async_generator_resolve_function, 1, i + is_resume_next * 2, 1, &generator); if (JS_IsException(func)) { if (i == 1) JS_FreeValue(ctx, resolving_funcs[0]); return -1; } resolving_funcs[i] = func; } return 0; } static int js_async_generator_await(JSContext *ctx, JSAsyncGeneratorData *s, JSValueConst value) { JSValue promise, resolving_funcs[2], resolving_funcs1[2]; int i, res; promise = js_promise_resolve(ctx, ctx->promise_ctor, 1, &value, 0); if (JS_IsException(promise)) goto fail; if (js_async_generator_resolve_function_create(ctx, JS_MKPTR(JS_TAG_OBJECT, s->generator), resolving_funcs, FALSE)) { JS_FreeValue(ctx, promise); goto fail; } /* Note: no need to create 'thrownawayCapability' as in the spec */ for(i = 0; i < 2; i++) resolving_funcs1[i] = JS_UNDEFINED; res = perform_promise_then(ctx, promise, (JSValueConst *)resolving_funcs, (JSValueConst *)resolving_funcs1); JS_FreeValue(ctx, promise); for(i = 0; i < 2; i++) JS_FreeValue(ctx, resolving_funcs[i]); if (res) goto fail; return 0; fail: return -1; } static void js_async_generator_resolve_or_reject(JSContext *ctx, JSAsyncGeneratorData *s, JSValueConst result, int is_reject) { JSAsyncGeneratorRequest *next; JSValue ret; next = list_entry(s->queue.next, JSAsyncGeneratorRequest, link); list_del(&next->link); ret = JS_Call(ctx, next->resolving_funcs[is_reject], JS_UNDEFINED, 1, &result); JS_FreeValue(ctx, ret); JS_FreeValue(ctx, next->result); JS_FreeValue(ctx, next->promise); JS_FreeValue(ctx, next->resolving_funcs[0]); JS_FreeValue(ctx, next->resolving_funcs[1]); js_free(ctx, next); } static void js_async_generator_resolve(JSContext *ctx, JSAsyncGeneratorData *s, JSValueConst value, BOOL done) { JSValue result; result = js_create_iterator_result(ctx, JS_DupValue(ctx, value), done); /* XXX: better exception handling ? */ js_async_generator_resolve_or_reject(ctx, s, result, 0); JS_FreeValue(ctx, result); } static void js_async_generator_reject(JSContext *ctx, JSAsyncGeneratorData *s, JSValueConst exception) { js_async_generator_resolve_or_reject(ctx, s, exception, 1); } static void js_async_generator_complete(JSContext *ctx, JSAsyncGeneratorData *s) { if (s->state != JS_ASYNC_GENERATOR_STATE_COMPLETED) { s->state = JS_ASYNC_GENERATOR_STATE_COMPLETED; async_func_free(ctx->rt, &s->func_state); } } static int js_async_generator_completed_return(JSContext *ctx, JSAsyncGeneratorData *s, JSValueConst value) { JSValue promise, resolving_funcs[2], resolving_funcs1[2]; int res; promise = js_promise_resolve(ctx, ctx->promise_ctor, 1, (JSValueConst *)&value, 0); if (JS_IsException(promise)) return -1; if (js_async_generator_resolve_function_create(ctx, JS_MKPTR(JS_TAG_OBJECT, s->generator), resolving_funcs1, TRUE)) { JS_FreeValue(ctx, promise); return -1; } resolving_funcs[0] = JS_UNDEFINED; resolving_funcs[1] = JS_UNDEFINED; res = perform_promise_then(ctx, promise, (JSValueConst *)resolving_funcs1, (JSValueConst *)resolving_funcs); JS_FreeValue(ctx, resolving_funcs1[0]); JS_FreeValue(ctx, resolving_funcs1[1]); JS_FreeValue(ctx, promise); return res; } static void js_async_generator_resume_next(JSContext *ctx, JSAsyncGeneratorData *s) { JSAsyncGeneratorRequest *next; JSValue func_ret, value; for(;;) { if (list_empty(&s->queue)) break; next = list_entry(s->queue.next, JSAsyncGeneratorRequest, link); switch(s->state) { case JS_ASYNC_GENERATOR_STATE_EXECUTING: /* only happens when restarting execution after await() */ goto resume_exec; case JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN: goto done; case JS_ASYNC_GENERATOR_STATE_SUSPENDED_START: if (next->completion_type == GEN_MAGIC_NEXT) { goto exec_no_arg; } else { js_async_generator_complete(ctx, s); } break; case JS_ASYNC_GENERATOR_STATE_COMPLETED: if (next->completion_type == GEN_MAGIC_NEXT) { js_async_generator_resolve(ctx, s, JS_UNDEFINED, TRUE); } else if (next->completion_type == GEN_MAGIC_RETURN) { s->state = JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN; js_async_generator_completed_return(ctx, s, next->result); goto done; } else { js_async_generator_reject(ctx, s, next->result); } goto done; case JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD: case JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR: value = JS_DupValue(ctx, next->result); if (next->completion_type == GEN_MAGIC_THROW && s->state == JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD) { JS_Throw(ctx, value); s->func_state.throw_flag = TRUE; } else { /* 'yield' returns a value. 'yield *' also returns a value in case the 'throw' method is called */ s->func_state.frame.cur_sp[-1] = value; s->func_state.frame.cur_sp[0] = JS_NewInt32(ctx, next->completion_type); s->func_state.frame.cur_sp++; exec_no_arg: s->func_state.throw_flag = FALSE; } s->state = JS_ASYNC_GENERATOR_STATE_EXECUTING; resume_exec: func_ret = async_func_resume(ctx, &s->func_state); if (JS_IsException(func_ret)) { value = JS_GetException(ctx); js_async_generator_complete(ctx, s); js_async_generator_reject(ctx, s, value); JS_FreeValue(ctx, value); } else if (JS_VALUE_GET_TAG(func_ret) == JS_TAG_INT) { int func_ret_code; value = s->func_state.frame.cur_sp[-1]; s->func_state.frame.cur_sp[-1] = JS_UNDEFINED; func_ret_code = JS_VALUE_GET_INT(func_ret); switch(func_ret_code) { case FUNC_RET_YIELD: case FUNC_RET_YIELD_STAR: if (func_ret_code == FUNC_RET_YIELD_STAR) s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR; else s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD; js_async_generator_resolve(ctx, s, value, FALSE); JS_FreeValue(ctx, value); break; case FUNC_RET_AWAIT: js_async_generator_await(ctx, s, value); JS_FreeValue(ctx, value); goto done; default: abort(); } } else { assert(JS_IsUndefined(func_ret)); /* end of function */ value = s->func_state.frame.cur_sp[-1]; s->func_state.frame.cur_sp[-1] = JS_UNDEFINED; js_async_generator_complete(ctx, s); js_async_generator_resolve(ctx, s, value, TRUE); JS_FreeValue(ctx, value); } break; default: abort(); } } done: ; } static JSValue js_async_generator_resolve_function(JSContext *ctx, JSValueConst this_obj, int argc, JSValueConst *argv, int magic, JSValue *func_data) { BOOL is_reject = magic & 1; JSAsyncGeneratorData *s = JS_GetOpaque(func_data[0], JS_CLASS_ASYNC_GENERATOR); JSValueConst arg = argv[0]; /* XXX: what if s == NULL */ if (magic >= 2) { /* resume next case in AWAITING_RETURN state */ assert(s->state == JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN || s->state == JS_ASYNC_GENERATOR_STATE_COMPLETED); s->state = JS_ASYNC_GENERATOR_STATE_COMPLETED; if (is_reject) { js_async_generator_reject(ctx, s, arg); } else { js_async_generator_resolve(ctx, s, arg, TRUE); } } else { /* restart function execution after await() */ assert(s->state == JS_ASYNC_GENERATOR_STATE_EXECUTING); s->func_state.throw_flag = is_reject; if (is_reject) { JS_Throw(ctx, JS_DupValue(ctx, arg)); } else { /* return value of await */ s->func_state.frame.cur_sp[-1] = JS_DupValue(ctx, arg); } js_async_generator_resume_next(ctx, s); } return JS_UNDEFINED; } /* magic = GEN_MAGIC_x */ static JSValue js_async_generator_next(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic) { JSAsyncGeneratorData *s = JS_GetOpaque(this_val, JS_CLASS_ASYNC_GENERATOR); JSValue promise, resolving_funcs[2]; JSAsyncGeneratorRequest *req; promise = JS_NewPromiseCapability(ctx, resolving_funcs); if (JS_IsException(promise)) return JS_EXCEPTION; if (!s) { JSValue err, res2; JS_ThrowTypeError(ctx, "not an AsyncGenerator object"); err = JS_GetException(ctx); res2 = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED, 1, (JSValueConst *)&err); JS_FreeValue(ctx, err); JS_FreeValue(ctx, res2); JS_FreeValue(ctx, resolving_funcs[0]); JS_FreeValue(ctx, resolving_funcs[1]); return promise; } req = js_mallocz(ctx, sizeof(*req)); if (!req) goto fail; req->completion_type = magic; req->result = JS_DupValue(ctx, argv[0]); req->promise = JS_DupValue(ctx, promise); req->resolving_funcs[0] = resolving_funcs[0]; req->resolving_funcs[1] = resolving_funcs[1]; list_add_tail(&req->link, &s->queue); if (s->state != JS_ASYNC_GENERATOR_STATE_EXECUTING) { js_async_generator_resume_next(ctx, s); } return promise; fail: JS_FreeValue(ctx, resolving_funcs[0]); JS_FreeValue(ctx, resolving_funcs[1]); JS_FreeValue(ctx, promise); return JS_EXCEPTION; } static JSValue js_async_generator_function_call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj, int argc, JSValueConst *argv, int flags) { JSValue obj, func_ret; JSAsyncGeneratorData *s; s = js_mallocz(ctx, sizeof(*s)); if (!s) return JS_EXCEPTION; s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_START; init_list_head(&s->queue); if (async_func_init(ctx, &s->func_state, func_obj, this_obj, argc, argv)) { s->state = JS_ASYNC_GENERATOR_STATE_COMPLETED; goto fail; } /* execute the function up to 'OP_initial_yield' (no yield nor await are possible) */ func_ret = async_func_resume(ctx, &s->func_state); if (JS_IsException(func_ret)) goto fail; JS_FreeValue(ctx, func_ret); obj = js_create_from_ctor(ctx, func_obj, JS_CLASS_ASYNC_GENERATOR); if (JS_IsException(obj)) goto fail; s->generator = JS_VALUE_GET_OBJ(obj); JS_SetOpaque(obj, s); return obj; fail: js_async_generator_free(ctx->rt, s); return JS_EXCEPTION; } /* JS parser */ enum { TOK_NUMBER = -128, TOK_STRING, TOK_TEMPLATE, TOK_IDENT, TOK_REGEXP, /* warning: order matters (see js_parse_assign_expr) */ TOK_MUL_ASSIGN, TOK_DIV_ASSIGN, TOK_MOD_ASSIGN, TOK_PLUS_ASSIGN, TOK_MINUS_ASSIGN, TOK_SHL_ASSIGN, TOK_SAR_ASSIGN, TOK_SHR_ASSIGN, TOK_AND_ASSIGN, TOK_XOR_ASSIGN, TOK_OR_ASSIGN, #ifdef CONFIG_BIGNUM TOK_MATH_POW_ASSIGN, #endif TOK_POW_ASSIGN, TOK_DEC, TOK_INC, TOK_SHL, TOK_SAR, TOK_SHR, TOK_LT, TOK_LTE, TOK_GT, TOK_GTE, TOK_EQ, TOK_STRICT_EQ, TOK_NEQ, TOK_STRICT_NEQ, TOK_LAND, TOK_LOR, #ifdef CONFIG_BIGNUM TOK_MATH_POW, #endif TOK_POW, TOK_ARROW, TOK_ELLIPSIS, TOK_DOUBLE_QUESTION_MARK, TOK_QUESTION_MARK_DOT, TOK_ERROR, TOK_PRIVATE_NAME, TOK_EOF, /* keywords: WARNING: same order as atoms */ TOK_NULL, /* must be first */ TOK_FALSE, TOK_TRUE, TOK_IF, TOK_ELSE, TOK_RETURN, TOK_VAR, TOK_THIS, TOK_DELETE, TOK_VOID, TOK_TYPEOF, TOK_NEW, TOK_IN, TOK_INSTANCEOF, TOK_DO, TOK_WHILE, TOK_FOR, TOK_BREAK, TOK_CONTINUE, TOK_SWITCH, TOK_CASE, TOK_DEFAULT, TOK_THROW, TOK_TRY, TOK_CATCH, TOK_FINALLY, TOK_FUNCTION, TOK_DEBUGGER, TOK_WITH, /* FutureReservedWord */ TOK_CLASS, TOK_CONST, TOK_ENUM, TOK_EXPORT, TOK_EXTENDS, TOK_IMPORT, TOK_SUPER, /* FutureReservedWords when parsing strict mode code */ TOK_IMPLEMENTS, TOK_INTERFACE, TOK_LET, TOK_PACKAGE, TOK_PRIVATE, TOK_PROTECTED, TOK_PUBLIC, TOK_STATIC, TOK_YIELD, TOK_AWAIT, /* must be last */ TOK_OF, /* only used for js_parse_skip_parens_token() */ }; #define TOK_FIRST_KEYWORD TOK_NULL #define TOK_LAST_KEYWORD TOK_AWAIT /* unicode code points */ #define CP_NBSP 0x00a0 #define CP_BOM 0xfeff #define CP_LS 0x2028 #define CP_PS 0x2029 typedef struct BlockEnv { struct BlockEnv *prev; JSAtom label_name; /* JS_ATOM_NULL if none */ int label_break; /* -1 if none */ int label_cont; /* -1 if none */ int drop_count; /* number of stack elements to drop */ int label_finally; /* -1 if none */ int scope_level; int has_iterator; } BlockEnv; typedef struct JSHoistedDef { int cpool_idx; /* -1 means variable global definition */ uint8_t force_init : 1; /* initialize to undefined */ uint8_t is_lexical : 1; /* global let/const definition */ uint8_t is_const : 1; /* const definition */ int var_idx; /* function object index if cpool_idx >= 0 */ int scope_level; /* scope of definition */ JSAtom var_name; /* variable name if cpool_idx < 0 */ } JSHoistedDef; typedef struct RelocEntry { struct RelocEntry *next; uint32_t addr; /* address to patch */ int size; /* address size: 1, 2 or 4 bytes */ } RelocEntry; typedef struct JumpSlot { int op; int size; int pos; int label; } JumpSlot; typedef struct LabelSlot { int ref_count; int pos; /* phase 1 address, -1 means not resolved yet */ int pos2; /* phase 2 address, -1 means not resolved yet */ int addr; /* phase 3 address, -1 means not resolved yet */ RelocEntry *first_reloc; } LabelSlot; typedef struct LineNumberSlot { uint32_t pc; int line_num; } LineNumberSlot; typedef enum JSParseFunctionEnum { JS_PARSE_FUNC_STATEMENT, JS_PARSE_FUNC_VAR, JS_PARSE_FUNC_EXPR, JS_PARSE_FUNC_ARROW, JS_PARSE_FUNC_GETTER, JS_PARSE_FUNC_SETTER, JS_PARSE_FUNC_METHOD, JS_PARSE_FUNC_CLASS_CONSTRUCTOR, JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR, } JSParseFunctionEnum; typedef enum JSParseExportEnum { JS_PARSE_EXPORT_NONE, JS_PARSE_EXPORT_NAMED, JS_PARSE_EXPORT_DEFAULT, } JSParseExportEnum; typedef struct JSFunctionDef { JSContext *ctx; struct JSFunctionDef *parent; int parent_cpool_idx; /* index in the constant pool of the parent or -1 if none */ int parent_scope_level; /* scope level in parent at point of definition */ struct list_head child_list; /* list of JSFunctionDef.link */ struct list_head link; BOOL is_eval; /* TRUE if eval code */ int eval_type; /* only valid if is_eval = TRUE */ BOOL is_global_var; /* TRUE if variables are not defined locally: eval global, eval module or non strict eval */ BOOL is_func_expr; /* TRUE if function expression */ BOOL has_home_object; /* TRUE if the home object is available */ BOOL has_prototype; /* true if a prototype field is necessary */ BOOL has_simple_parameter_list; BOOL has_use_strict; /* to reject directive in special cases */ BOOL has_eval_call; /* true if the function contains a call to eval() */ BOOL has_arguments_binding; /* true if the 'arguments' binding is available in the function */ BOOL has_this_binding; /* true if the 'this' and new.target binding are available in the function */ BOOL new_target_allowed; /* true if the 'new.target' does not throw a syntax error */ BOOL super_call_allowed; /* true if super() is allowed */ BOOL super_allowed; /* true if super. or super[] is allowed */ BOOL arguments_allowed; /* true if the 'arguments' identifier is allowed */ BOOL is_derived_class_constructor; BOOL in_function_body; BOOL backtrace_barrier; JSFunctionKindEnum func_kind : 8; JSParseFunctionEnum func_type : 8; uint8_t js_mode; /* bitmap of JS_MODE_x */ JSAtom func_name; /* JS_ATOM_NULL if no name */ JSVarDef *vars; int var_size; /* allocated size for vars[] */ int var_count; JSVarDef *args; int arg_size; /* allocated size for args[] */ int arg_count; /* number of arguments */ int defined_arg_count; int var_object_idx; /* -1 if none */ int arguments_var_idx; /* -1 if none */ int func_var_idx; /* variable containing the current function (-1 if none, only used if is_func_expr is true) */ int eval_ret_idx; /* variable containing the return value of the eval, -1 if none */ int this_var_idx; /* variable containg the 'this' value, -1 if none */ int new_target_var_idx; /* variable containg the 'new.target' value, -1 if none */ int this_active_func_var_idx; /* variable containg the 'this.active_func' value, -1 if none */ int home_object_var_idx; BOOL need_home_object; int scope_level; /* index into fd->scopes if the current lexical scope */ int scope_first; /* index into vd->vars of first lexically scoped variable */ int scope_size; /* allocated size of fd->scopes array */ int scope_count; /* number of entries used in the fd->scopes array */ JSVarScope *scopes; JSVarScope def_scope_array[4]; int hoisted_def_count; int hoisted_def_size; JSHoistedDef *hoisted_def; DynBuf byte_code; int last_opcode_pos; /* -1 if no last opcode */ int last_opcode_line_num; BOOL use_short_opcodes; /* true if short opcodes are used in byte_code */ LabelSlot *label_slots; int label_size; /* allocated size for label_slots[] */ int label_count; BlockEnv *top_break; /* break/continue label stack */ /* constant pool (strings, functions, numbers) */ JSValue *cpool; int cpool_count; int cpool_size; /* list of variables in the closure */ int closure_var_count; int closure_var_size; JSClosureVar *closure_var; JumpSlot *jump_slots; int jump_size; int jump_count; LineNumberSlot *line_number_slots; int line_number_size; int line_number_count; int line_number_last; int line_number_last_pc; /* pc2line table */ JSAtom filename; int line_num; DynBuf pc2line; char *source; /* raw source, utf-8 encoded */ int source_len; JSModuleDef *module; /* != NULL when parsing a module */ } JSFunctionDef; typedef struct JSToken { int val; int line_num; /* line number of token start */ const uint8_t *ptr; union { struct { JSValue str; int sep; } str; struct { JSValue val; #ifdef CONFIG_BIGNUM slimb_t exponent; /* may be != 0 only if val is a float */ #endif } num; struct { JSAtom atom; BOOL has_escape; BOOL is_reserved; } ident; struct { JSValue body; JSValue flags; } regexp; } u; } JSToken; typedef struct JSParseState { JSContext *ctx; int last_line_num; /* line number of last token */ int line_num; /* line number of current offset */ const char *filename; JSToken token; BOOL got_lf; /* true if got line feed before the current token */ const uint8_t *last_ptr; const uint8_t *buf_ptr; const uint8_t *buf_end; /* current function code */ JSFunctionDef *cur_func; BOOL is_module; /* parsing a module */ BOOL allow_html_comments; BOOL ext_json; /* true if accepting JSON superset */ } JSParseState; typedef struct JSOpCode { #ifdef DUMP_BYTECODE const char *name; #endif uint8_t size; /* in bytes */ /* the opcodes remove n_pop items from the top of the stack, then pushes n_push items */ uint8_t n_pop; uint8_t n_push; uint8_t fmt; } JSOpCode; static const JSOpCode opcode_info[OP_COUNT + (OP_TEMP_END - OP_TEMP_START)] = { #define FMT(f) #ifdef DUMP_BYTECODE #define DEF(id, size, n_pop, n_push, f) { #id, size, n_pop, n_push, OP_FMT_ ## f }, #else #define DEF(id, size, n_pop, n_push, f) { size, n_pop, n_push, OP_FMT_ ## f }, #endif #include "quickjs-opcode.h" #undef DEF #undef FMT }; #if SHORT_OPCODES /* After the final compilation pass, short opcodes are used. Their opcodes overlap with the temporary opcodes which cannot appear in the final bytecode. Their description is after the temporary opcodes in opcode_info[]. */ #define short_opcode_info(op) \ opcode_info[(op) >= OP_TEMP_START ? \ (op) + (OP_TEMP_END - OP_TEMP_START) : (op)] #else #define short_opcode_info(op) opcode_info[op] #endif static __exception int next_token(JSParseState *s); static void free_token(JSParseState *s, JSToken *token) { switch(token->val) { #ifdef CONFIG_BIGNUM case TOK_NUMBER: JS_FreeValue(s->ctx, token->u.num.val); break; #endif case TOK_STRING: case TOK_TEMPLATE: JS_FreeValue(s->ctx, token->u.str.str); break; case TOK_REGEXP: JS_FreeValue(s->ctx, token->u.regexp.body); JS_FreeValue(s->ctx, token->u.regexp.flags); break; case TOK_IDENT: case TOK_FIRST_KEYWORD ... TOK_LAST_KEYWORD: case TOK_PRIVATE_NAME: JS_FreeAtom(s->ctx, token->u.ident.atom); break; default: break; } } static void __attribute((unused)) dump_token(JSParseState *s, const JSToken *token) { switch(token->val) { case TOK_NUMBER: { double d; JS_ToFloat64(s->ctx, &d, token->u.num.val); /* no exception possible */ printf("number: %.14g\n", d); } break; case TOK_IDENT: dump_atom: { char buf[ATOM_GET_STR_BUF_SIZE]; printf("ident: '%s'\n", JS_AtomGetStr(s->ctx, buf, sizeof(buf), token->u.ident.atom)); } break; case TOK_STRING: { const char *str; /* XXX: quote the string */ str = JS_ToCString(s->ctx, token->u.str.str); printf("string: '%s'\n", str); JS_FreeCString(s->ctx, str); } break; case TOK_TEMPLATE: { const char *str; str = JS_ToCString(s->ctx, token->u.str.str); printf("template: `%s`\n", str); JS_FreeCString(s->ctx, str); } break; case TOK_REGEXP: { const char *str, *str2; str = JS_ToCString(s->ctx, token->u.regexp.body); str2 = JS_ToCString(s->ctx, token->u.regexp.flags); printf("regexp: '%s' '%s'\n", str, str2); JS_FreeCString(s->ctx, str); JS_FreeCString(s->ctx, str2); } break; case TOK_EOF: printf("eof\n"); break; default: if (s->token.val >= TOK_NULL && s->token.val <= TOK_LAST_KEYWORD) { goto dump_atom; } else if (s->token.val >= 256) { printf("token: %d\n", token->val); } else { printf("token: '%c'\n", token->val); } break; } } int __attribute__((format(printf, 2, 3))) js_parse_error(JSParseState *s, const char *fmt, ...) { JSContext *ctx = s->ctx; va_list ap; int backtrace_flags; va_start(ap, fmt); JS_ThrowError2(ctx, JS_SYNTAX_ERROR, fmt, ap, FALSE); va_end(ap); backtrace_flags = 0; if (s->cur_func && s->cur_func->backtrace_barrier) backtrace_flags = JS_BACKTRACE_FLAG_SINGLE_LEVEL; build_backtrace(ctx, ctx->rt->current_exception, s->filename, s->line_num, backtrace_flags); return -1; } static int js_parse_expect(JSParseState *s, int tok) { if (s->token.val != tok) { /* XXX: dump token correctly in all cases */ return js_parse_error(s, "expecting '%c'", tok); } return next_token(s); } static int js_parse_expect_semi(JSParseState *s) { if (s->token.val != ';') { /* automatic insertion of ';' */ if (s->token.val == TOK_EOF || s->token.val == '}' || s->got_lf) { return 0; } return js_parse_error(s, "expecting '%c'", ';'); } return next_token(s); } static int js_parse_error_reserved_identifier(JSParseState *s) { char buf1[ATOM_GET_STR_BUF_SIZE]; return js_parse_error(s, "'%s' is a reserved identifier", JS_AtomGetStr(s->ctx, buf1, sizeof(buf1), s->token.u.ident.atom)); } static __exception int js_parse_template_part(JSParseState *s, const uint8_t *p) { uint32_t c; StringBuffer b_s, *b = &b_s; /* p points to the first byte of the template part */ if (string_buffer_init(s->ctx, b, 32)) goto fail; for(;;) { if (p >= s->buf_end) goto unexpected_eof; c = *p++; if (c == '`') { /* template end part */ break; } if (c == '$' && *p == '{') { /* template start or middle part */ p++; break; } if (c == '\\') { if (string_buffer_putc8(b, c)) goto fail; if (p >= s->buf_end) goto unexpected_eof; c = *p++; } /* newline sequences are normalized as single '\n' bytes */ if (c == '\r') { if (*p == '\n') p++; c = '\n'; } if (c == '\n') { s->line_num++; } else if (c >= 0x80) { const uint8_t *p_next; c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next); if (c > 0x10FFFF) { js_parse_error(s, "invalid UTF-8 sequence"); goto fail; } p = p_next; } if (string_buffer_putc(b, c)) goto fail; } s->token.val = TOK_TEMPLATE; s->token.u.str.sep = c; s->token.u.str.str = string_buffer_end(b); s->buf_ptr = p; return 0; unexpected_eof: js_parse_error(s, "unexpected end of string"); fail: string_buffer_free(b); return -1; } static __exception int js_parse_string(JSParseState *s, int sep, BOOL do_throw, const uint8_t *p, JSToken *token, const uint8_t **pp) { int ret; uint32_t c; StringBuffer b_s, *b = &b_s; /* string */ if (string_buffer_init(s->ctx, b, 32)) goto fail; for(;;) { if (p >= s->buf_end) goto invalid_char; c = *p; if (c < 0x20) { if (!s->cur_func) { if (do_throw) js_parse_error(s, "invalid character in a JSON string"); goto fail; } if (sep == '`') { if (c == '\r') { if (p[1] == '\n') p++; c = '\n'; } /* do not update s->line_num */ } else if (c == '\n' || c == '\r') goto invalid_char; } p++; if (c == sep) break; if (c == '$' && *p == '{' && sep == '`') { /* template start or middle part */ p++; break; } if (c == '\\') { c = *p; switch(c) { case '\0': if (p >= s->buf_end) goto invalid_char; p++; break; case '\'': case '\"': case '\\': p++; break; case '\r': /* accept DOS and MAC newline sequences */ if (p[1] == '\n') { p++; } /* fall thru */ case '\n': /* ignore escaped newline sequence */ p++; if (sep != '`') s->line_num++; continue; default: if (c >= '0' && c <= '7') { if (!s->cur_func) goto invalid_octal; /* JSON case */ if (!(s->cur_func->js_mode & JS_MODE_STRICT) && sep != '`') goto parse_escape; if (c == '0' && !(p[1] >= '0' && p[1] <= '9')) { p++; c = '\0'; } else { invalid_octal: if (do_throw) js_parse_error(s, "invalid octal syntax in strict mode"); goto fail; } } else if (c >= 0x80) { const uint8_t *p_next; c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next); if (c > 0x10FFFF) { goto invalid_utf8; } p = p_next; /* LS or PS are skipped */ if (c == CP_LS || c == CP_PS) continue; } else { parse_escape: ret = lre_parse_escape(&p, TRUE); if (ret == -1) { if (do_throw) js_parse_error(s, "malformed escape sequence in string literal"); goto fail; } else if (ret < 0) { /* ignore the '\' (could output a warning) */ p++; } else { c = ret; } } break; } } else if (c >= 0x80) { const uint8_t *p_next; c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next); if (c > 0x10FFFF) goto invalid_utf8; p = p_next; } if (string_buffer_putc(b, c)) goto fail; } token->val = TOK_STRING; token->u.str.sep = c; token->u.str.str = string_buffer_end(b); *pp = p; return 0; invalid_utf8: if (do_throw) js_parse_error(s, "invalid UTF-8 sequence"); goto fail; invalid_char: if (do_throw) js_parse_error(s, "unexpected end of string"); fail: string_buffer_free(b); return -1; } static inline BOOL token_is_pseudo_keyword(JSParseState *s, JSAtom atom) { return s->token.val == TOK_IDENT && s->token.u.ident.atom == atom && !s->token.u.ident.has_escape; } static __exception int js_parse_regexp(JSParseState *s) { const uint8_t *p; BOOL in_class; StringBuffer b_s, *b = &b_s; StringBuffer b2_s, *b2 = &b2_s; uint32_t c; p = s->buf_ptr; p++; in_class = FALSE; if (string_buffer_init(s->ctx, b, 32)) return -1; if (string_buffer_init(s->ctx, b2, 1)) goto fail; for(;;) { if (p >= s->buf_end) { eof_error: js_parse_error(s, "unexpected end of regexp"); goto fail; } c = *p++; if (c == '\n' || c == '\r') { goto eol_error; } else if (c == '/') { if (!in_class) break; } else if (c == '[') { in_class = TRUE; } else if (c == ']') { /* XXX: incorrect as the first character in a class */ in_class = FALSE; } else if (c == '\\') { if (string_buffer_putc8(b, c)) goto fail; c = *p++; if (c == '\n' || c == '\r') goto eol_error; else if (c == '\0' && p >= s->buf_end) goto eof_error; else if (c >= 0x80) { const uint8_t *p_next; c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next); if (c > 0x10FFFF) { goto invalid_utf8; } p = p_next; if (c == CP_LS || c == CP_PS) goto eol_error; } } else if (c >= 0x80) { const uint8_t *p_next; c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next); if (c > 0x10FFFF) { invalid_utf8: js_parse_error(s, "invalid UTF-8 sequence"); goto fail; } p = p_next; /* LS or PS are considered as line terminator */ if (c == CP_LS || c == CP_PS) { eol_error: js_parse_error(s, "unexpected line terminator in regexp"); goto fail; } } if (string_buffer_putc(b, c)) goto fail; } /* flags */ for(;;) { const uint8_t *p_next = p; c = *p_next++; if (c >= 0x80) { c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next); if (c > 0x10FFFF) { goto invalid_utf8; } } if (!lre_js_is_ident_next(c)) break; if (string_buffer_putc(b2, c)) goto fail; p = p_next; } s->token.val = TOK_REGEXP; s->token.u.regexp.body = string_buffer_end(b); s->token.u.regexp.flags = string_buffer_end(b2); s->buf_ptr = p; return 0; fail: string_buffer_free(b); string_buffer_free(b2); return -1; } static __exception int ident_realloc(JSContext *ctx, char **pbuf, size_t *psize, char *static_buf) { char *buf, *new_buf; size_t size, new_size; buf = *pbuf; size = *psize; if (size >= (SIZE_MAX / 3) * 2) new_size = SIZE_MAX; else new_size = size + (size >> 1); if (buf == static_buf) { new_buf = js_malloc(ctx, new_size); if (!new_buf) return -1; memcpy(new_buf, buf, size); } else { new_buf = js_realloc(ctx, buf, new_size); if (!new_buf) return -1; } *pbuf = new_buf; *psize = new_size; return 0; } /* 'c' is the first character. Return JS_ATOM_NULL in case of error */ static JSAtom parse_ident(JSParseState *s, const uint8_t **pp, BOOL *pident_has_escape, int c, BOOL is_private) { const uint8_t *p, *p1; char ident_buf[128], *buf; size_t ident_size, ident_pos; JSAtom atom; p = *pp; buf = ident_buf; ident_size = sizeof(ident_buf); ident_pos = 0; if (is_private) buf[ident_pos++] = '#'; for(;;) { p1 = p; if (c < 128) { buf[ident_pos++] = c; } else { ident_pos += unicode_to_utf8((uint8_t*)buf + ident_pos, c); } c = *p1++; if (c == '\\' && *p1 == 'u') { c = lre_parse_escape(&p1, TRUE); *pident_has_escape = TRUE; } else if (c >= 128) { c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1); } if (!lre_js_is_ident_next(c)) break; p = p1; if (unlikely(ident_pos >= ident_size - UTF8_CHAR_LEN_MAX)) { if (ident_realloc(s->ctx, &buf, &ident_size, ident_buf)) { atom = JS_ATOM_NULL; goto done; } } } atom = JS_NewAtomLen(s->ctx, buf, ident_pos); done: if (unlikely(buf != ident_buf)) js_free(s->ctx, buf); *pp = p; return atom; } static __exception int next_token(JSParseState *s) { const uint8_t *p; int c; BOOL ident_has_escape; JSAtom atom; if (js_check_stack_overflow(s->ctx->rt, 0)) { return js_parse_error(s, "stack overflow"); } free_token(s, &s->token); p = s->last_ptr = s->buf_ptr; s->got_lf = FALSE; s->last_line_num = s->token.line_num; redo: s->token.line_num = s->line_num; s->token.ptr = p; c = *p; switch(c) { case 0: if (p >= s->buf_end) { s->token.val = TOK_EOF; } else { goto def_token; } break; case '`': if (js_parse_template_part(s, p + 1)) goto fail; p = s->buf_ptr; break; case '\'': case '\"': if (js_parse_string(s, c, TRUE, p + 1, &s->token, &p)) goto fail; break; case '\r': /* accept DOS and MAC newline sequences */ if (p[1] == '\n') { p++; } /* fall thru */ case '\n': p++; line_terminator: s->got_lf = TRUE; s->line_num++; goto redo; case '\f': case '\v': case ' ': case '\t': p++; goto redo; case '/': if (p[1] == '*') { /* comment */ p += 2; for(;;) { if (*p == '\0' && p >= s->buf_end) { js_parse_error(s, "unexpected end of comment"); goto fail; } if (p[0] == '*' && p[1] == '/') { p += 2; break; } if (*p == '\n') { s->line_num++; s->got_lf = TRUE; /* considered as LF for ASI */ p++; } else if (*p == '\r') { s->got_lf = TRUE; /* considered as LF for ASI */ p++; } else if (*p >= 0x80) { c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p); if (c == CP_LS || c == CP_PS) { s->got_lf = TRUE; /* considered as LF for ASI */ } else if (c == -1) { p++; /* skip invalid UTF-8 */ } } else { p++; } } goto redo; } else if (p[1] == '/') { /* line comment */ p += 2; skip_line_comment: for(;;) { if (*p == '\0' && p >= s->buf_end) break; if (*p == '\r' || *p == '\n') break; if (*p >= 0x80) { c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p); /* LS or PS are considered as line terminator */ if (c == CP_LS || c == CP_PS) { break; } else if (c == -1) { p++; /* skip invalid UTF-8 */ } } else { p++; } } goto redo; } else if (p[1] == '=') { p += 2; s->token.val = TOK_DIV_ASSIGN; } else { p++; s->token.val = c; } break; case '\\': if (p[1] == 'u') { const uint8_t *p1 = p + 1; int c1 = lre_parse_escape(&p1, TRUE); if (c1 >= 0 && lre_js_is_ident_first(c1)) { c = c1; p = p1; ident_has_escape = TRUE; goto has_ident; } else { /* XXX: syntax error? */ } } goto def_token; case 'a' ... 'z': case 'A' ... 'Z': case '_': case '$': /* identifier */ p++; ident_has_escape = FALSE; has_ident: atom = parse_ident(s, &p, &ident_has_escape, c, FALSE); if (atom == JS_ATOM_NULL) goto fail; s->token.u.ident.atom = atom; s->token.u.ident.has_escape = ident_has_escape; s->token.u.ident.is_reserved = FALSE; if (s->token.u.ident.atom <= JS_ATOM_LAST_KEYWORD || (s->token.u.ident.atom <= JS_ATOM_LAST_STRICT_KEYWORD && (s->cur_func->js_mode & JS_MODE_STRICT)) || (s->token.u.ident.atom == JS_ATOM_yield && ((s->cur_func->func_kind & JS_FUNC_GENERATOR) || (s->cur_func->func_type == JS_PARSE_FUNC_ARROW && !s->cur_func->in_function_body && s->cur_func->parent && (s->cur_func->parent->func_kind & JS_FUNC_GENERATOR)))) || (s->token.u.ident.atom == JS_ATOM_await && (s->is_module || (((s->cur_func->func_kind & JS_FUNC_ASYNC) || (s->cur_func->func_type == JS_PARSE_FUNC_ARROW && !s->cur_func->in_function_body && s->cur_func->parent && (s->cur_func->parent->func_kind & JS_FUNC_ASYNC))))))) { if (ident_has_escape) { s->token.u.ident.is_reserved = TRUE; s->token.val = TOK_IDENT; } else { /* The keywords atoms are pre allocated */ s->token.val = s->token.u.ident.atom - 1 + TOK_FIRST_KEYWORD; } } else { s->token.val = TOK_IDENT; } break; case '#': /* private name */ { const uint8_t *p1; p++; p1 = p; c = *p1++; if (c == '\\' && *p1 == 'u') { c = lre_parse_escape(&p1, TRUE); } else if (c >= 128) { c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1); } if (!lre_js_is_ident_first(c)) { js_parse_error(s, "invalid first character of private name"); goto fail; } p = p1; ident_has_escape = FALSE; /* not used */ atom = parse_ident(s, &p, &ident_has_escape, c, TRUE); if (atom == JS_ATOM_NULL) goto fail; s->token.u.ident.atom = atom; s->token.val = TOK_PRIVATE_NAME; } break; case '.': if (p[1] == '.' && p[2] == '.') { p += 3; s->token.val = TOK_ELLIPSIS; break; } if (p[1] >= '0' && p[1] <= '9') { goto parse_number; } else { goto def_token; } break; case '0': /* in strict mode, octal literals are not accepted */ if (is_digit(p[1]) && (s->cur_func->js_mode & JS_MODE_STRICT)) { js_parse_error(s, "octal literals are deprecated in strict mode"); goto fail; } goto parse_number; case '1' ... '9': /* number */ parse_number: { JSValue ret; const uint8_t *p1; int flags, radix; flags = ATOD_ACCEPT_BIN_OCT | ATOD_ACCEPT_LEGACY_OCTAL | ATOD_ACCEPT_UNDERSCORES; #ifdef CONFIG_BIGNUM flags |= ATOD_ACCEPT_SUFFIX; if (s->cur_func->js_mode & JS_MODE_MATH) { flags |= ATOD_MODE_BIGINT; if (s->cur_func->js_mode & JS_MODE_MATH) flags |= ATOD_TYPE_BIG_FLOAT; } #endif radix = 0; #ifdef CONFIG_BIGNUM s->token.u.num.exponent = 0; ret = js_atof2(s->ctx, (const char *)p, (const char **)&p, radix, flags, &s->token.u.num.exponent); #else ret = js_atof(s->ctx, (const char *)p, (const char **)&p, radix, flags); #endif if (JS_IsException(ret)) goto fail; /* reject `10instanceof Number` */ if (JS_VALUE_IS_NAN(ret) || lre_js_is_ident_next(unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1))) { JS_FreeValue(s->ctx, ret); js_parse_error(s, "invalid number literal"); goto fail; } s->token.val = TOK_NUMBER; s->token.u.num.val = ret; } break; case '*': if (p[1] == '=') { p += 2; s->token.val = TOK_MUL_ASSIGN; } else if (p[1] == '*') { if (p[2] == '=') { p += 3; s->token.val = TOK_POW_ASSIGN; } else { p += 2; s->token.val = TOK_POW; } } else { goto def_token; } break; case '%': if (p[1] == '=') { p += 2; s->token.val = TOK_MOD_ASSIGN; } else { goto def_token; } break; case '+': if (p[1] == '=') { p += 2; s->token.val = TOK_PLUS_ASSIGN; } else if (p[1] == '+') { p += 2; s->token.val = TOK_INC; } else { goto def_token; } break; case '-': if (p[1] == '=') { p += 2; s->token.val = TOK_MINUS_ASSIGN; } else if (p[1] == '-') { if (s->allow_html_comments && p[2] == '>' && s->last_line_num != s->line_num) { /* Annex B: `-->` at beginning of line is an html comment end. It extends to the end of the line. */ goto skip_line_comment; } p += 2; s->token.val = TOK_DEC; } else { goto def_token; } break; case '<': if (p[1] == '=') { p += 2; s->token.val = TOK_LTE; } else if (p[1] == '<') { if (p[2] == '=') { p += 3; s->token.val = TOK_SHL_ASSIGN; } else { p += 2; s->token.val = TOK_SHL; } } else if (s->allow_html_comments && p[1] == '!' && p[2] == '-' && p[3] == '-') { /* Annex B: handle `