| // Copyright 2012 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| (function(global, utils) { |
| |
| %CheckIsBootstrapping(); |
| |
| // ---------------------------------------------------------------------------- |
| // Imports |
| |
| var GlobalNumber = global.Number; |
| var GlobalObject = global.Object; |
| var iteratorSymbol = utils.ImportNow("iterator_symbol"); |
| var NaN = %GetRootNaN(); |
| var ObjectToString = utils.ImportNow("object_to_string"); |
| |
| // ---------------------------------------------------------------------------- |
| |
| |
| // Set up global object. |
| var attributes = DONT_ENUM | DONT_DELETE | READ_ONLY; |
| |
| utils.InstallConstants(global, [ |
| // ES6 18.1.1 |
| "Infinity", INFINITY, |
| // ES6 18.1.2 |
| "NaN", NaN, |
| // ES6 18.1.3 |
| "undefined", UNDEFINED, |
| ]); |
| |
| |
| // ---------------------------------------------------------------------------- |
| // Object |
| |
| // ES6 19.1.3.5 Object.prototype.toLocaleString([reserved1 [,reserved2]]) |
| function ObjectToLocaleString() { |
| CHECK_OBJECT_COERCIBLE(this, "Object.prototype.toLocaleString"); |
| return this.toString(); |
| } |
| |
| |
| // ES6 19.1.3.7 Object.prototype.valueOf() |
| function ObjectValueOf() { |
| return TO_OBJECT(this); |
| } |
| |
| |
| // ES6 19.1.3.3 Object.prototype.isPrototypeOf(V) |
| function ObjectIsPrototypeOf(V) { |
| if (!IS_RECEIVER(V)) return false; |
| var O = TO_OBJECT(this); |
| return %HasInPrototypeChain(V, O); |
| } |
| |
| |
| // ES6 7.3.9 |
| function GetMethod(obj, p) { |
| var func = obj[p]; |
| if (IS_NULL_OR_UNDEFINED(func)) return UNDEFINED; |
| if (IS_CALLABLE(func)) return func; |
| throw %make_type_error(kCalledNonCallable, typeof func); |
| } |
| |
| // ES6 19.1.1.1 |
| function ObjectConstructor(x) { |
| if (GlobalObject != new.target && !IS_UNDEFINED(new.target)) { |
| return this; |
| } |
| if (IS_NULL(x) || IS_UNDEFINED(x)) return {}; |
| return TO_OBJECT(x); |
| } |
| |
| |
| // ---------------------------------------------------------------------------- |
| // Object |
| |
| %SetNativeFlag(GlobalObject); |
| %SetCode(GlobalObject, ObjectConstructor); |
| |
| %AddNamedProperty(GlobalObject.prototype, "constructor", GlobalObject, |
| DONT_ENUM); |
| |
| // Set up non-enumerable functions on the Object.prototype object. |
| utils.InstallFunctions(GlobalObject.prototype, DONT_ENUM, [ |
| "toString", ObjectToString, |
| "toLocaleString", ObjectToLocaleString, |
| "valueOf", ObjectValueOf, |
| "isPrototypeOf", ObjectIsPrototypeOf, |
| // propertyIsEnumerable is added in bootstrapper.cc. |
| // __defineGetter__ is added in bootstrapper.cc. |
| // __lookupGetter__ is added in bootstrapper.cc. |
| // __defineSetter__ is added in bootstrapper.cc. |
| // __lookupSetter__ is added in bootstrapper.cc. |
| ]); |
| |
| |
| // ---------------------------------------------------------------------------- |
| // Number |
| |
| utils.InstallConstants(GlobalNumber, [ |
| // ECMA-262 section 15.7.3.1. |
| "MAX_VALUE", 1.7976931348623157e+308, |
| // ECMA-262 section 15.7.3.2. |
| "MIN_VALUE", 5e-324, |
| // ECMA-262 section 15.7.3.3. |
| "NaN", NaN, |
| // ECMA-262 section 15.7.3.4. |
| "NEGATIVE_INFINITY", -INFINITY, |
| // ECMA-262 section 15.7.3.5. |
| "POSITIVE_INFINITY", INFINITY, |
| |
| // --- Harmony constants (no spec refs until settled.) |
| |
| "MAX_SAFE_INTEGER", 9007199254740991, |
| "MIN_SAFE_INTEGER", -9007199254740991, |
| "EPSILON", 2.220446049250313e-16, |
| ]); |
| |
| |
| // ---------------------------------------------------------------------------- |
| // Iterator related spec functions. |
| |
| // ES6 7.4.1 GetIterator(obj, method) |
| function GetIterator(obj, method) { |
| if (IS_UNDEFINED(method)) { |
| method = obj[iteratorSymbol]; |
| } |
| if (!IS_CALLABLE(method)) { |
| throw %make_type_error(kNotIterable, obj); |
| } |
| var iterator = %_Call(method, obj); |
| if (!IS_RECEIVER(iterator)) { |
| throw %make_type_error(kNotAnIterator, iterator); |
| } |
| return iterator; |
| } |
| |
| // ---------------------------------------------------------------------------- |
| // Exports |
| |
| utils.Export(function(to) { |
| to.GetIterator = GetIterator; |
| to.GetMethod = GetMethod; |
| to.ObjectHasOwnProperty = GlobalObject.prototype.hasOwnProperty; |
| }); |
| |
| %InstallToContext([ |
| "object_value_of", ObjectValueOf, |
| ]); |
| |
| }) |