The Tor Browser: js/src/builtin/Utilities.js@6474c204b198 (annotated)

js/src/builtin/Utilities.js@6474c204b198 (annotated)

js/src/builtin/Utilities.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 /*jshint bitwise: true, camelcase: false, curly: false, eqeqeq: true,
          es5: true, forin: true, immed: true, indent: 4, latedef: false,
          newcap: false, noarg: true, noempty: true, nonew: true,
          plusplus: false, quotmark: false, regexp: true, undef: true,
          unused: false, strict: false, trailing: true,
 */
 /*global ToObject: false, ToInteger: false, IsCallable: false,
          ThrowError: false, AssertionFailed: false, SetScriptHints: false,
          MakeConstructible: false, DecompileArg: false,
          RuntimeDefaultLocale: false,
          ParallelDo: false, ParallelSlices: false, NewDenseArray: false,
          UnsafePutElements: false, ShouldForceSequential: false,
          ParallelTestsShouldPass: false,
          Dump: false,
          callFunction: false,
          TO_UINT32: false,
          JSMSG_NOT_FUNCTION: false, JSMSG_MISSING_FUN_ARG: false,
          JSMSG_EMPTY_ARRAY_REDUCE: false, JSMSG_CANT_CONVERT_TO: false,
 */
 #include "SelfHostingDefines.h"
 // Remove unsafe builtin functions.
 Object.defineProperty = null; // See bug 988416.
 // Cache builtin functions so using them doesn't require cloning the whole object they're
 // installed on.
 var std_isFinite = isFinite;
 var std_isNaN = isNaN;
 var std_Array_indexOf = ArrayIndexOf;
 var std_Array_iterator = Array.prototype.iterator;
 var std_Array_join = Array.prototype.join;
 var std_Array_push = Array.prototype.push;
 var std_Array_pop = Array.prototype.pop;
 var std_Array_shift = Array.prototype.shift;
 var std_Array_slice = Array.prototype.slice;
 var std_Array_sort = Array.prototype.sort;
 var std_Array_unshift = Array.prototype.unshift;
 var std_Boolean_toString = Boolean.prototype.toString;
 var Std_Date = Date;
 var std_Date_now = Date.now;
 var std_Date_valueOf = Date.prototype.valueOf;
 var std_Function_bind = Function.prototype.bind;
 var std_Function_apply = Function.prototype.apply;
 var std_Math_floor = Math.floor;
 var std_Math_max = Math.max;
 var std_Math_min = Math.min;
 var std_Math_imul = Math.imul;
 var std_Math_log2 = Math.log2;
 var std_Number_valueOf = Number.prototype.valueOf;
 var std_Number_POSITIVE_INFINITY = Number.POSITIVE_INFINITY;
 var std_Object_create = Object.create;
 var std_Object_getOwnPropertyNames = Object.getOwnPropertyNames;
 var std_Object_hasOwnProperty = Object.prototype.hasOwnProperty;
 var std_RegExp_test = RegExp.prototype.test;
 var Std_String = String;
 var std_String_fromCharCode = String.fromCharCode;
 var std_String_charCodeAt = String.prototype.charCodeAt;
 var std_String_indexOf = String.prototype.indexOf;
 var std_String_lastIndexOf = String.prototype.lastIndexOf;
 var std_String_match = String.prototype.match;
 var std_String_replace = String.prototype.replace;
 var std_String_split = String.prototype.split;
 var std_String_startsWith = String.prototype.startsWith;
 var std_String_substring = String.prototype.substring;
 var std_String_toLowerCase = String.prototype.toLowerCase;
 var std_String_toUpperCase = String.prototype.toUpperCase;
 var std_WeakMap = WeakMap;
 var std_WeakMap_get = WeakMap.prototype.get;
 var std_WeakMap_has = WeakMap.prototype.has;
 var std_WeakMap_set = WeakMap.prototype.set;
 var std_Map_has = Map.prototype.has;
 var std_Set_has = Set.prototype.has;
 var std_iterator = '@@iterator'; // FIXME: Change to be a symbol.
 var std_StopIteration = StopIteration;
 var std_Map_iterator = Map.prototype[std_iterator];
 var std_Set_iterator = Set.prototype[std_iterator];
 var std_Map_iterator_next = Object.getPrototypeOf(Map()[std_iterator]()).next;
 var std_Set_iterator_next = Object.getPrototypeOf(Set()[std_iterator]()).next;
 /********** List specification type **********/
 /* Spec: ECMAScript Language Specification, 5.1 edition, 8.8 */
 function List() {}
 {
   let ListProto = std_Object_create(null);
   ListProto.indexOf = std_Array_indexOf;
   ListProto.join = std_Array_join;
   ListProto.push = std_Array_push;
   ListProto.slice = std_Array_slice;
   ListProto.sort = std_Array_sort;
   MakeConstructible(List, ListProto);
 }
 /********** Record specification type **********/
 /* Spec: ECMAScript Internationalization API Specification, draft, 5 */
 function Record() {
     return std_Object_create(null);
 }
 MakeConstructible(Record, {});
 /********** Abstract operations defined in ECMAScript Language Specification **********/
 /* Spec: ECMAScript Language Specification, 5.1 edition, 8.12.6 and 11.8.7 */
 function HasProperty(o, p) {
     return p in o;
 }
 /* Spec: ECMAScript Language Specification, 5.1 edition, 9.2 and 11.4.9 */
 function ToBoolean(v) {
     return !!v;
 }
 /* Spec: ECMAScript Language Specification, 5.1 edition, 9.3 and 11.4.6 */
 function ToNumber(v) {
     return +v;
 }
 /* Spec: ECMAScript Language Specification, 5.1 edition, 9.8 and 15.2.1.1 */
 function ToString(v) {
     assert(arguments.length > 0, "__toString");
     return Std_String(v);
 }
 /* Spec: ECMAScript Language Specification, 5.1 edition, 9.10 */
 function CheckObjectCoercible(v) {
     if (v === undefined || v === null)
         ThrowError(JSMSG_CANT_CONVERT_TO, ToString(v), "object");
 }
 /********** Various utility functions **********/
 /** Returns true iff Type(v) is Object; see ES5 8.6. */
 function IsObject(v) {
     // Watch out for |typeof null === "object"| as the most obvious pitfall.
     // But also be careful of SpiderMonkey's objects that emulate undefined
     // (i.e. |document.all|), which have bogus |typeof| behavior.  Detect
     // these objects using strict equality, which said bogosity doesn't affect.
     return (typeof v === "object" && v !== null) ||
            typeof v === "function" ||
            (typeof v === "undefined" && v !== undefined);
 }
 /********** Testing code **********/
 #ifdef ENABLE_PARALLEL_JS
 /**
  * Internal debugging tool: checks that the given `mode` permits
  * sequential execution
  */
 function AssertSequentialIsOK(mode) {
   if (mode && mode.mode && mode.mode !== "seq" && ParallelTestsShouldPass())
     ThrowError(JSMSG_WRONG_VALUE, "parallel execution", "sequential was forced");
 }
 function ForkJoinMode(mode) {
   // WARNING: this must match the enum ForkJoinMode in ForkJoin.cpp
   if (!mode || !mode.mode) {
     return 0;
   } else if (mode.mode === "compile") {
     return 1;
   } else if (mode.mode === "par") {
     return 2;
   } else if (mode.mode === "recover") {
     return 3;
   } else if (mode.mode === "bailout") {
     return 4;
   }
   ThrowError(JSMSG_PAR_ARRAY_BAD_ARG);
   return undefined;
 }
 #endif