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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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179 V(NATIVE_OBJECT_GET_NOTIFIER_INDEX, JSFunction, \ | 179 V(NATIVE_OBJECT_GET_NOTIFIER_INDEX, JSFunction, \ |
180 native_object_get_notifier) \ | 180 native_object_get_notifier) \ |
181 V(NATIVE_OBJECT_NOTIFIER_PERFORM_CHANGE, JSFunction, \ | 181 V(NATIVE_OBJECT_NOTIFIER_PERFORM_CHANGE, JSFunction, \ |
182 native_object_notifier_perform_change) \ | 182 native_object_notifier_perform_change) \ |
183 V(SLOPPY_GENERATOR_FUNCTION_MAP_INDEX, Map, sloppy_generator_function_map) \ | 183 V(SLOPPY_GENERATOR_FUNCTION_MAP_INDEX, Map, sloppy_generator_function_map) \ |
184 V(STRICT_GENERATOR_FUNCTION_MAP_INDEX, Map, strict_generator_function_map) \ | 184 V(STRICT_GENERATOR_FUNCTION_MAP_INDEX, Map, strict_generator_function_map) \ |
185 V(GENERATOR_OBJECT_PROTOTYPE_MAP_INDEX, Map, \ | 185 V(GENERATOR_OBJECT_PROTOTYPE_MAP_INDEX, Map, \ |
186 generator_object_prototype_map) \ | 186 generator_object_prototype_map) \ |
187 V(ITERATOR_RESULT_MAP_INDEX, Map, iterator_result_map) \ | 187 V(ITERATOR_RESULT_MAP_INDEX, Map, iterator_result_map) \ |
188 V(MAP_ITERATOR_MAP_INDEX, Map, map_iterator_map) \ | 188 V(MAP_ITERATOR_MAP_INDEX, Map, map_iterator_map) \ |
189 V(SET_ITERATOR_MAP_INDEX, Map, set_iterator_map) | 189 V(SET_ITERATOR_MAP_INDEX, Map, set_iterator_map) \ |
| 190 V(BUILTIN_JS_FUNCTIONS_INDEX, FixedArray, builtin_js_functions) |
190 | 191 |
191 // JSFunctions are pairs (context, function code), sometimes also called | 192 // JSFunctions are pairs (context, function code), sometimes also called |
192 // closures. A Context object is used to represent function contexts and | 193 // closures. A Context object is used to represent function contexts and |
193 // dynamically pushed 'with' contexts (or 'scopes' in ECMA-262 speak). | 194 // dynamically pushed 'with' contexts (or 'scopes' in ECMA-262 speak). |
194 // | 195 // |
195 // At runtime, the contexts build a stack in parallel to the execution | 196 // At runtime, the contexts build a stack in parallel to the execution |
196 // stack, with the top-most context being the current context. All contexts | 197 // stack, with the top-most context being the current context. All contexts |
197 // have the following slots: | 198 // have the following slots: |
198 // | 199 // |
199 // [ closure ] This is the current function. It is the same for all | 200 // [ closure ] This is the current function. It is the same for all |
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351 OBSERVERS_END_SPLICE_INDEX, | 352 OBSERVERS_END_SPLICE_INDEX, |
352 NATIVE_OBJECT_OBSERVE_INDEX, | 353 NATIVE_OBJECT_OBSERVE_INDEX, |
353 NATIVE_OBJECT_GET_NOTIFIER_INDEX, | 354 NATIVE_OBJECT_GET_NOTIFIER_INDEX, |
354 NATIVE_OBJECT_NOTIFIER_PERFORM_CHANGE, | 355 NATIVE_OBJECT_NOTIFIER_PERFORM_CHANGE, |
355 SLOPPY_GENERATOR_FUNCTION_MAP_INDEX, | 356 SLOPPY_GENERATOR_FUNCTION_MAP_INDEX, |
356 STRICT_GENERATOR_FUNCTION_MAP_INDEX, | 357 STRICT_GENERATOR_FUNCTION_MAP_INDEX, |
357 GENERATOR_OBJECT_PROTOTYPE_MAP_INDEX, | 358 GENERATOR_OBJECT_PROTOTYPE_MAP_INDEX, |
358 ITERATOR_RESULT_MAP_INDEX, | 359 ITERATOR_RESULT_MAP_INDEX, |
359 MAP_ITERATOR_MAP_INDEX, | 360 MAP_ITERATOR_MAP_INDEX, |
360 SET_ITERATOR_MAP_INDEX, | 361 SET_ITERATOR_MAP_INDEX, |
| 362 BUILTIN_JS_FUNCTIONS_INDEX, |
361 | 363 |
362 // Properties from here are treated as weak references by the full GC. | 364 // Properties from here are treated as weak references by the full GC. |
363 // Scavenge treats them as strong references. | 365 // Scavenge treats them as strong references. |
364 OPTIMIZED_FUNCTIONS_LIST, // Weak. | 366 OPTIMIZED_FUNCTIONS_LIST, // Weak. |
365 OPTIMIZED_CODE_LIST, // Weak. | 367 OPTIMIZED_CODE_LIST, // Weak. |
366 DEOPTIMIZED_CODE_LIST, // Weak. | 368 DEOPTIMIZED_CODE_LIST, // Weak. |
367 MAP_CACHE_INDEX, // Weak. | 369 MAP_CACHE_INDEX, // Weak. |
368 NEXT_CONTEXT_LINK, // Weak. | 370 NEXT_CONTEXT_LINK, // Weak. |
369 | 371 |
370 // Total number of slots. | 372 // Total number of slots. |
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545 static bool IsBootstrappingOrGlobalObject(Isolate* isolate, Object* object); | 547 static bool IsBootstrappingOrGlobalObject(Isolate* isolate, Object* object); |
546 #endif | 548 #endif |
547 | 549 |
548 STATIC_ASSERT(kHeaderSize == Internals::kContextHeaderSize); | 550 STATIC_ASSERT(kHeaderSize == Internals::kContextHeaderSize); |
549 STATIC_ASSERT(EMBEDDER_DATA_INDEX == Internals::kContextEmbedderDataIndex); | 551 STATIC_ASSERT(EMBEDDER_DATA_INDEX == Internals::kContextEmbedderDataIndex); |
550 }; | 552 }; |
551 | 553 |
552 } } // namespace v8::internal | 554 } } // namespace v8::internal |
553 | 555 |
554 #endif // V8_CONTEXTS_H_ | 556 #endif // V8_CONTEXTS_H_ |
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