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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 #ifndef V8_CONTEXTS_H_ | 5 #ifndef V8_CONTEXTS_H_ |
6 #define V8_CONTEXTS_H_ | 6 #define V8_CONTEXTS_H_ |
7 | 7 |
8 #include "src/heap.h" | 8 #include "src/heap.h" |
9 #include "src/objects.h" | 9 #include "src/objects.h" |
10 | 10 |
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182 native_object_get_notifier) \ | 182 native_object_get_notifier) \ |
183 V(NATIVE_OBJECT_NOTIFIER_PERFORM_CHANGE, JSFunction, \ | 183 V(NATIVE_OBJECT_NOTIFIER_PERFORM_CHANGE, JSFunction, \ |
184 native_object_notifier_perform_change) \ | 184 native_object_notifier_perform_change) \ |
185 V(SLOPPY_GENERATOR_FUNCTION_MAP_INDEX, Map, sloppy_generator_function_map) \ | 185 V(SLOPPY_GENERATOR_FUNCTION_MAP_INDEX, Map, sloppy_generator_function_map) \ |
186 V(STRICT_GENERATOR_FUNCTION_MAP_INDEX, Map, strict_generator_function_map) \ | 186 V(STRICT_GENERATOR_FUNCTION_MAP_INDEX, Map, strict_generator_function_map) \ |
187 V(GENERATOR_OBJECT_PROTOTYPE_MAP_INDEX, Map, \ | 187 V(GENERATOR_OBJECT_PROTOTYPE_MAP_INDEX, Map, \ |
188 generator_object_prototype_map) \ | 188 generator_object_prototype_map) \ |
189 V(ITERATOR_RESULT_MAP_INDEX, Map, iterator_result_map) \ | 189 V(ITERATOR_RESULT_MAP_INDEX, Map, iterator_result_map) \ |
190 V(MAP_ITERATOR_MAP_INDEX, Map, map_iterator_map) \ | 190 V(MAP_ITERATOR_MAP_INDEX, Map, map_iterator_map) \ |
191 V(SET_ITERATOR_MAP_INDEX, Map, set_iterator_map) \ | 191 V(SET_ITERATOR_MAP_INDEX, Map, set_iterator_map) \ |
192 V(ITERATOR_SYMBOL_INDEX, Symbol, iterator_symbol) | 192 V(ITERATOR_SYMBOL_INDEX, Symbol, iterator_symbol) \ |
| 193 V(ARRAY_VALUES_ITERATOR_INDEX, JSFunction, array_values_iterator) |
193 | 194 |
194 // JSFunctions are pairs (context, function code), sometimes also called | 195 // JSFunctions are pairs (context, function code), sometimes also called |
195 // closures. A Context object is used to represent function contexts and | 196 // closures. A Context object is used to represent function contexts and |
196 // dynamically pushed 'with' contexts (or 'scopes' in ECMA-262 speak). | 197 // dynamically pushed 'with' contexts (or 'scopes' in ECMA-262 speak). |
197 // | 198 // |
198 // At runtime, the contexts build a stack in parallel to the execution | 199 // At runtime, the contexts build a stack in parallel to the execution |
199 // stack, with the top-most context being the current context. All contexts | 200 // stack, with the top-most context being the current context. All contexts |
200 // have the following slots: | 201 // have the following slots: |
201 // | 202 // |
202 // [ closure ] This is the current function. It is the same for all | 203 // [ closure ] This is the current function. It is the same for all |
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357 NATIVE_OBJECT_OBSERVE_INDEX, | 358 NATIVE_OBJECT_OBSERVE_INDEX, |
358 NATIVE_OBJECT_GET_NOTIFIER_INDEX, | 359 NATIVE_OBJECT_GET_NOTIFIER_INDEX, |
359 NATIVE_OBJECT_NOTIFIER_PERFORM_CHANGE, | 360 NATIVE_OBJECT_NOTIFIER_PERFORM_CHANGE, |
360 SLOPPY_GENERATOR_FUNCTION_MAP_INDEX, | 361 SLOPPY_GENERATOR_FUNCTION_MAP_INDEX, |
361 STRICT_GENERATOR_FUNCTION_MAP_INDEX, | 362 STRICT_GENERATOR_FUNCTION_MAP_INDEX, |
362 GENERATOR_OBJECT_PROTOTYPE_MAP_INDEX, | 363 GENERATOR_OBJECT_PROTOTYPE_MAP_INDEX, |
363 ITERATOR_RESULT_MAP_INDEX, | 364 ITERATOR_RESULT_MAP_INDEX, |
364 MAP_ITERATOR_MAP_INDEX, | 365 MAP_ITERATOR_MAP_INDEX, |
365 SET_ITERATOR_MAP_INDEX, | 366 SET_ITERATOR_MAP_INDEX, |
366 ITERATOR_SYMBOL_INDEX, | 367 ITERATOR_SYMBOL_INDEX, |
| 368 ARRAY_VALUES_ITERATOR_INDEX, |
367 | 369 |
368 // Properties from here are treated as weak references by the full GC. | 370 // Properties from here are treated as weak references by the full GC. |
369 // Scavenge treats them as strong references. | 371 // Scavenge treats them as strong references. |
370 OPTIMIZED_FUNCTIONS_LIST, // Weak. | 372 OPTIMIZED_FUNCTIONS_LIST, // Weak. |
371 OPTIMIZED_CODE_LIST, // Weak. | 373 OPTIMIZED_CODE_LIST, // Weak. |
372 DEOPTIMIZED_CODE_LIST, // Weak. | 374 DEOPTIMIZED_CODE_LIST, // Weak. |
373 MAP_CACHE_INDEX, // Weak. | 375 MAP_CACHE_INDEX, // Weak. |
374 NEXT_CONTEXT_LINK, // Weak. | 376 NEXT_CONTEXT_LINK, // Weak. |
375 | 377 |
376 // Total number of slots. | 378 // Total number of slots. |
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551 static bool IsBootstrappingOrGlobalObject(Isolate* isolate, Object* object); | 553 static bool IsBootstrappingOrGlobalObject(Isolate* isolate, Object* object); |
552 #endif | 554 #endif |
553 | 555 |
554 STATIC_ASSERT(kHeaderSize == Internals::kContextHeaderSize); | 556 STATIC_ASSERT(kHeaderSize == Internals::kContextHeaderSize); |
555 STATIC_ASSERT(EMBEDDER_DATA_INDEX == Internals::kContextEmbedderDataIndex); | 557 STATIC_ASSERT(EMBEDDER_DATA_INDEX == Internals::kContextEmbedderDataIndex); |
556 }; | 558 }; |
557 | 559 |
558 } } // namespace v8::internal | 560 } } // namespace v8::internal |
559 | 561 |
560 #endif // V8_CONTEXTS_H_ | 562 #endif // V8_CONTEXTS_H_ |
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