1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/builtin/Utilities.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,194 @@
1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.7 +
1.8 +/*jshint bitwise: true, camelcase: false, curly: false, eqeqeq: true,
1.9 + es5: true, forin: true, immed: true, indent: 4, latedef: false,
1.10 + newcap: false, noarg: true, noempty: true, nonew: true,
1.11 + plusplus: false, quotmark: false, regexp: true, undef: true,
1.12 + unused: false, strict: false, trailing: true,
1.13 +*/
1.14 +
1.15 +/*global ToObject: false, ToInteger: false, IsCallable: false,
1.16 + ThrowError: false, AssertionFailed: false, SetScriptHints: false,
1.17 + MakeConstructible: false, DecompileArg: false,
1.18 + RuntimeDefaultLocale: false,
1.19 + ParallelDo: false, ParallelSlices: false, NewDenseArray: false,
1.20 + UnsafePutElements: false, ShouldForceSequential: false,
1.21 + ParallelTestsShouldPass: false,
1.22 + Dump: false,
1.23 + callFunction: false,
1.24 + TO_UINT32: false,
1.25 + JSMSG_NOT_FUNCTION: false, JSMSG_MISSING_FUN_ARG: false,
1.26 + JSMSG_EMPTY_ARRAY_REDUCE: false, JSMSG_CANT_CONVERT_TO: false,
1.27 +*/
1.28 +
1.29 +#include "SelfHostingDefines.h"
1.30 +
1.31 +// Remove unsafe builtin functions.
1.32 +Object.defineProperty = null; // See bug 988416.
1.33 +
1.34 +// Cache builtin functions so using them doesn't require cloning the whole object they're
1.35 +// installed on.
1.36 +var std_isFinite = isFinite;
1.37 +var std_isNaN = isNaN;
1.38 +var std_Array_indexOf = ArrayIndexOf;
1.39 +var std_Array_iterator = Array.prototype.iterator;
1.40 +var std_Array_join = Array.prototype.join;
1.41 +var std_Array_push = Array.prototype.push;
1.42 +var std_Array_pop = Array.prototype.pop;
1.43 +var std_Array_shift = Array.prototype.shift;
1.44 +var std_Array_slice = Array.prototype.slice;
1.45 +var std_Array_sort = Array.prototype.sort;
1.46 +var std_Array_unshift = Array.prototype.unshift;
1.47 +var std_Boolean_toString = Boolean.prototype.toString;
1.48 +var Std_Date = Date;
1.49 +var std_Date_now = Date.now;
1.50 +var std_Date_valueOf = Date.prototype.valueOf;
1.51 +var std_Function_bind = Function.prototype.bind;
1.52 +var std_Function_apply = Function.prototype.apply;
1.53 +var std_Math_floor = Math.floor;
1.54 +var std_Math_max = Math.max;
1.55 +var std_Math_min = Math.min;
1.56 +var std_Math_imul = Math.imul;
1.57 +var std_Math_log2 = Math.log2;
1.58 +var std_Number_valueOf = Number.prototype.valueOf;
1.59 +var std_Number_POSITIVE_INFINITY = Number.POSITIVE_INFINITY;
1.60 +var std_Object_create = Object.create;
1.61 +var std_Object_getOwnPropertyNames = Object.getOwnPropertyNames;
1.62 +var std_Object_hasOwnProperty = Object.prototype.hasOwnProperty;
1.63 +var std_RegExp_test = RegExp.prototype.test;
1.64 +var Std_String = String;
1.65 +var std_String_fromCharCode = String.fromCharCode;
1.66 +var std_String_charCodeAt = String.prototype.charCodeAt;
1.67 +var std_String_indexOf = String.prototype.indexOf;
1.68 +var std_String_lastIndexOf = String.prototype.lastIndexOf;
1.69 +var std_String_match = String.prototype.match;
1.70 +var std_String_replace = String.prototype.replace;
1.71 +var std_String_split = String.prototype.split;
1.72 +var std_String_startsWith = String.prototype.startsWith;
1.73 +var std_String_substring = String.prototype.substring;
1.74 +var std_String_toLowerCase = String.prototype.toLowerCase;
1.75 +var std_String_toUpperCase = String.prototype.toUpperCase;
1.76 +var std_WeakMap = WeakMap;
1.77 +var std_WeakMap_get = WeakMap.prototype.get;
1.78 +var std_WeakMap_has = WeakMap.prototype.has;
1.79 +var std_WeakMap_set = WeakMap.prototype.set;
1.80 +var std_Map_has = Map.prototype.has;
1.81 +var std_Set_has = Set.prototype.has;
1.82 +var std_iterator = '@@iterator'; // FIXME: Change to be a symbol.
1.83 +var std_StopIteration = StopIteration;
1.84 +var std_Map_iterator = Map.prototype[std_iterator];
1.85 +var std_Set_iterator = Set.prototype[std_iterator];
1.86 +var std_Map_iterator_next = Object.getPrototypeOf(Map()[std_iterator]()).next;
1.87 +var std_Set_iterator_next = Object.getPrototypeOf(Set()[std_iterator]()).next;
1.88 +
1.89 +
1.90 +
1.91 +/********** List specification type **********/
1.92 +
1.93 +
1.94 +/* Spec: ECMAScript Language Specification, 5.1 edition, 8.8 */
1.95 +function List() {}
1.96 +{
1.97 + let ListProto = std_Object_create(null);
1.98 + ListProto.indexOf = std_Array_indexOf;
1.99 + ListProto.join = std_Array_join;
1.100 + ListProto.push = std_Array_push;
1.101 + ListProto.slice = std_Array_slice;
1.102 + ListProto.sort = std_Array_sort;
1.103 + MakeConstructible(List, ListProto);
1.104 +}
1.105 +
1.106 +
1.107 +/********** Record specification type **********/
1.108 +
1.109 +
1.110 +/* Spec: ECMAScript Internationalization API Specification, draft, 5 */
1.111 +function Record() {
1.112 + return std_Object_create(null);
1.113 +}
1.114 +MakeConstructible(Record, {});
1.115 +
1.116 +
1.117 +/********** Abstract operations defined in ECMAScript Language Specification **********/
1.118 +
1.119 +
1.120 +/* Spec: ECMAScript Language Specification, 5.1 edition, 8.12.6 and 11.8.7 */
1.121 +function HasProperty(o, p) {
1.122 + return p in o;
1.123 +}
1.124 +
1.125 +
1.126 +/* Spec: ECMAScript Language Specification, 5.1 edition, 9.2 and 11.4.9 */
1.127 +function ToBoolean(v) {
1.128 + return !!v;
1.129 +}
1.130 +
1.131 +
1.132 +/* Spec: ECMAScript Language Specification, 5.1 edition, 9.3 and 11.4.6 */
1.133 +function ToNumber(v) {
1.134 + return +v;
1.135 +}
1.136 +
1.137 +
1.138 +/* Spec: ECMAScript Language Specification, 5.1 edition, 9.8 and 15.2.1.1 */
1.139 +function ToString(v) {
1.140 + assert(arguments.length > 0, "__toString");
1.141 + return Std_String(v);
1.142 +}
1.143 +
1.144 +
1.145 +/* Spec: ECMAScript Language Specification, 5.1 edition, 9.10 */
1.146 +function CheckObjectCoercible(v) {
1.147 + if (v === undefined || v === null)
1.148 + ThrowError(JSMSG_CANT_CONVERT_TO, ToString(v), "object");
1.149 +}
1.150 +
1.151 +
1.152 +/********** Various utility functions **********/
1.153 +
1.154 +
1.155 +/** Returns true iff Type(v) is Object; see ES5 8.6. */
1.156 +function IsObject(v) {
1.157 + // Watch out for |typeof null === "object"| as the most obvious pitfall.
1.158 + // But also be careful of SpiderMonkey's objects that emulate undefined
1.159 + // (i.e. |document.all|), which have bogus |typeof| behavior. Detect
1.160 + // these objects using strict equality, which said bogosity doesn't affect.
1.161 + return (typeof v === "object" && v !== null) ||
1.162 + typeof v === "function" ||
1.163 + (typeof v === "undefined" && v !== undefined);
1.164 +}
1.165 +
1.166 +
1.167 +/********** Testing code **********/
1.168 +
1.169 +#ifdef ENABLE_PARALLEL_JS
1.170 +
1.171 +/**
1.172 + * Internal debugging tool: checks that the given `mode` permits
1.173 + * sequential execution
1.174 + */
1.175 +function AssertSequentialIsOK(mode) {
1.176 + if (mode && mode.mode && mode.mode !== "seq" && ParallelTestsShouldPass())
1.177 + ThrowError(JSMSG_WRONG_VALUE, "parallel execution", "sequential was forced");
1.178 +}
1.179 +
1.180 +function ForkJoinMode(mode) {
1.181 + // WARNING: this must match the enum ForkJoinMode in ForkJoin.cpp
1.182 + if (!mode || !mode.mode) {
1.183 + return 0;
1.184 + } else if (mode.mode === "compile") {
1.185 + return 1;
1.186 + } else if (mode.mode === "par") {
1.187 + return 2;
1.188 + } else if (mode.mode === "recover") {
1.189 + return 3;
1.190 + } else if (mode.mode === "bailout") {
1.191 + return 4;
1.192 + }
1.193 + ThrowError(JSMSG_PAR_ARRAY_BAD_ARG);
1.194 + return undefined;
1.195 +}
1.196 +
1.197 +#endif
