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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This file relies on the fact that the following declarations have been made | 5 // This file relies on the fact that the following declarations have been made |
6 // in runtime.js: | 6 // in runtime.js: |
7 // var $Object = global.Object; | 7 // var $Object = global.Object; |
8 // var $Boolean = global.Boolean; | 8 // var $Boolean = global.Boolean; |
9 // var $Number = global.Number; | 9 // var $Number = global.Number; |
10 // var $Function = global.Function; | 10 // var $Function = global.Function; |
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252 | 252 |
253 // ECMA-262 - 15.2.4.6 | 253 // ECMA-262 - 15.2.4.6 |
254 function ObjectIsPrototypeOf(V) { | 254 function ObjectIsPrototypeOf(V) { |
255 if (!IS_SPEC_OBJECT(V)) return false; | 255 if (!IS_SPEC_OBJECT(V)) return false; |
256 CHECK_OBJECT_COERCIBLE(this, "Object.prototype.isPrototypeOf"); | 256 CHECK_OBJECT_COERCIBLE(this, "Object.prototype.isPrototypeOf"); |
257 return %IsInPrototypeChain(this, V); | 257 return %IsInPrototypeChain(this, V); |
258 } | 258 } |
259 | 259 |
260 | 260 |
261 // ECMA-262 - 15.2.4.6 | 261 // ECMA-262 - 15.2.4.6 |
262 function ObjectPropertyIsEnumerable(V) { | 262 function ObjectPropertyIsEnumerableJS(O, V) { |
263 var P = ToName(V); | 263 var P = ToName(V); |
264 if (%_IsJSProxy(this)) { | 264 if (%_IsJSProxy(O)) { |
265 // TODO(rossberg): adjust once there is a story for symbols vs proxies. | 265 // TODO(rossberg): adjust once there is a story for symbols vs proxies. |
266 if (IS_SYMBOL(V)) return false; | 266 if (IS_SYMBOL(V)) return false; |
267 | 267 |
268 var desc = GetOwnPropertyJS(this, P); | 268 var desc = GetOwnPropertyJS(O, P); |
269 return IS_UNDEFINED(desc) ? false : desc.isEnumerable(); | 269 return IS_UNDEFINED(desc) ? false : desc.isEnumerable(); |
270 } | 270 } |
271 return %IsPropertyEnumerable(ToObject(this), P); | 271 return %IsPropertyEnumerable(ToObject(O), P); |
272 } | 272 } |
273 | 273 |
274 | 274 |
| 275 function ObjectPropertyIsEnumerable(V) { |
| 276 return ObjectPropertyIsEnumerableJS(this, V); |
| 277 } |
| 278 |
| 279 |
275 // Extensions for providing property getters and setters. | 280 // Extensions for providing property getters and setters. |
276 function ObjectDefineGetter(name, fun) { | 281 function ObjectDefineGetter(name, fun) { |
277 var receiver = this; | 282 var receiver = this; |
278 if (receiver == null && !IS_UNDETECTABLE(receiver)) { | 283 if (receiver == null && !IS_UNDETECTABLE(receiver)) { |
279 receiver = %GlobalProxy(global); | 284 receiver = %GlobalProxy(global); |
280 } | 285 } |
281 if (!IS_SPEC_FUNCTION(fun)) { | 286 if (!IS_SPEC_FUNCTION(fun)) { |
282 throw new $TypeError( | 287 throw new $TypeError( |
283 'Object.prototype.__defineGetter__: Expecting function'); | 288 'Object.prototype.__defineGetter__: Expecting function'); |
284 } | 289 } |
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1900 } | 1905 } |
1901 if (!IS_SPEC_FUNCTION(method)) { | 1906 if (!IS_SPEC_FUNCTION(method)) { |
1902 throw MakeTypeError('not_iterable', [obj]); | 1907 throw MakeTypeError('not_iterable', [obj]); |
1903 } | 1908 } |
1904 var iterator = %_CallFunction(obj, method); | 1909 var iterator = %_CallFunction(obj, method); |
1905 if (!IS_SPEC_OBJECT(iterator)) { | 1910 if (!IS_SPEC_OBJECT(iterator)) { |
1906 throw MakeTypeError('not_an_iterator', [iterator]); | 1911 throw MakeTypeError('not_an_iterator', [iterator]); |
1907 } | 1912 } |
1908 return iterator; | 1913 return iterator; |
1909 } | 1914 } |
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