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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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244 | 244 |
245 var handler = %GetHandler(this); | 245 var handler = %GetHandler(this); |
246 return CallTrap1(handler, "hasOwn", DerivedHasOwnTrap, ToName(V)); | 246 return CallTrap1(handler, "hasOwn", DerivedHasOwnTrap, ToName(V)); |
247 } | 247 } |
248 return %HasOwnProperty(TO_OBJECT_INLINE(this), ToName(V)); | 248 return %HasOwnProperty(TO_OBJECT_INLINE(this), ToName(V)); |
249 } | 249 } |
250 | 250 |
251 | 251 |
252 // ECMA-262 - 15.2.4.6 | 252 // ECMA-262 - 15.2.4.6 |
253 function ObjectIsPrototypeOf(V) { | 253 function ObjectIsPrototypeOf(V) { |
| 254 if (!IS_SPEC_OBJECT(V)) return false; |
254 CHECK_OBJECT_COERCIBLE(this, "Object.prototype.isPrototypeOf"); | 255 CHECK_OBJECT_COERCIBLE(this, "Object.prototype.isPrototypeOf"); |
255 if (!IS_SPEC_OBJECT(V)) return false; | |
256 return %IsInPrototypeChain(this, V); | 256 return %IsInPrototypeChain(this, V); |
257 } | 257 } |
258 | 258 |
259 | 259 |
260 // ECMA-262 - 15.2.4.6 | 260 // ECMA-262 - 15.2.4.6 |
261 function ObjectPropertyIsEnumerable(V) { | 261 function ObjectPropertyIsEnumerable(V) { |
262 var P = ToName(V); | 262 var P = ToName(V); |
263 if (%IsJSProxy(this)) { | 263 if (%IsJSProxy(this)) { |
264 // TODO(rossberg): adjust once there is a story for symbols vs proxies. | 264 // TODO(rossberg): adjust once there is a story for symbols vs proxies. |
265 if (IS_SYMBOL(V)) return false; | 265 if (IS_SYMBOL(V)) return false; |
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1911 } | 1911 } |
1912 if (!IS_SPEC_FUNCTION(method)) { | 1912 if (!IS_SPEC_FUNCTION(method)) { |
1913 throw MakeTypeError('not_iterable', [obj]); | 1913 throw MakeTypeError('not_iterable', [obj]); |
1914 } | 1914 } |
1915 var iterator = %_CallFunction(obj, method); | 1915 var iterator = %_CallFunction(obj, method); |
1916 if (!IS_SPEC_OBJECT(iterator)) { | 1916 if (!IS_SPEC_OBJECT(iterator)) { |
1917 throw MakeTypeError('not_an_iterator', [iterator]); | 1917 throw MakeTypeError('not_an_iterator', [iterator]); |
1918 } | 1918 } |
1919 return iterator; | 1919 return iterator; |
1920 } | 1920 } |
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