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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 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 2564 | 2564 |
| 2565 // FixedArray describes fixed-sized arrays with element type Object*. | 2565 // FixedArray describes fixed-sized arrays with element type Object*. |
| 2566 class FixedArray: public FixedArrayBase { | 2566 class FixedArray: public FixedArrayBase { |
| 2567 public: | 2567 public: |
| 2568 // Setter and getter for elements. | 2568 // Setter and getter for elements. |
| 2569 inline Object* get(int index); | 2569 inline Object* get(int index); |
| 2570 // Setter that uses write barrier. | 2570 // Setter that uses write barrier. |
| 2571 inline void set(int index, Object* value); | 2571 inline void set(int index, Object* value); |
| 2572 inline bool is_the_hole(int index); | 2572 inline bool is_the_hole(int index); |
| 2573 | 2573 |
| 2574 // Setter that doesn't need write barrier). | 2574 // Setter that doesn't need write barrier. |
| 2575 inline void set(int index, Smi* value); | 2575 inline void set(int index, Smi* value); |
| 2576 // Setter with explicit barrier mode. | 2576 // Setter with explicit barrier mode. |
| 2577 inline void set(int index, Object* value, WriteBarrierMode mode); | 2577 inline void set(int index, Object* value, WriteBarrierMode mode); |
| 2578 | 2578 |
| 2579 // Setters for frequently used oddballs located in old space. | 2579 // Setters for frequently used oddballs located in old space. |
| 2580 inline void set_undefined(int index); | 2580 inline void set_undefined(int index); |
| 2581 // TODO(isolates): duplicate. | 2581 // TODO(isolates): duplicate. |
| 2582 inline void set_undefined(Heap* heap, int index); | 2582 inline void set_undefined(Heap* heap, int index); |
| 2583 inline void set_null(int index); | 2583 inline void set_null(int index); |
| 2584 // TODO(isolates): duplicate. | 2584 // TODO(isolates): duplicate. |
| 2585 inline void set_null(Heap* heap, int index); | 2585 inline void set_null(Heap* heap, int index); |
| 2586 inline void set_the_hole(int index); | 2586 inline void set_the_hole(int index); |
| 2587 | 2587 |
| 2588 // Setters with less debug checks for the GC to use. | |
| 2589 inline void set_unchecked(int index, Smi* value); | |
| 2590 inline void set_null_unchecked(Heap* heap, int index); | |
| 2591 inline void set_unchecked(Heap* heap, int index, Object* value, | |
| 2592 WriteBarrierMode mode); | |
| 2593 | |
| 2594 inline Object** GetFirstElementAddress(); | 2588 inline Object** GetFirstElementAddress(); |
| 2595 inline bool ContainsOnlySmisOrHoles(); | 2589 inline bool ContainsOnlySmisOrHoles(); |
| 2596 | 2590 |
| 2597 // Gives access to raw memory which stores the array's data. | 2591 // Gives access to raw memory which stores the array's data. |
| 2598 inline Object** data_start(); | 2592 inline Object** data_start(); |
| 2599 | 2593 |
| 2600 // Copy operations. | 2594 // Copy operations. |
| 2601 MUST_USE_RESULT inline MaybeObject* Copy(); | 2595 MUST_USE_RESULT inline MaybeObject* Copy(); |
| 2602 MUST_USE_RESULT MaybeObject* CopySize(int new_length); | 2596 MUST_USE_RESULT MaybeObject* CopySize(int new_length); |
| 2603 | 2597 |
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| 4546 inline void set_ic_age(int count); | 4540 inline void set_ic_age(int count); |
| 4547 inline int ic_age(); | 4541 inline int ic_age(); |
| 4548 | 4542 |
| 4549 // [prologue_offset]: Offset of the function prologue, used for aging | 4543 // [prologue_offset]: Offset of the function prologue, used for aging |
| 4550 // FUNCTIONs and OPTIMIZED_FUNCTIONs. | 4544 // FUNCTIONs and OPTIMIZED_FUNCTIONs. |
| 4551 inline int prologue_offset(); | 4545 inline int prologue_offset(); |
| 4552 inline void set_prologue_offset(int offset); | 4546 inline void set_prologue_offset(int offset); |
| 4553 | 4547 |
| 4554 // Unchecked accessors to be used during GC. | 4548 // Unchecked accessors to be used during GC. |
| 4555 inline ByteArray* unchecked_relocation_info(); | 4549 inline ByteArray* unchecked_relocation_info(); |
| 4556 inline FixedArray* unchecked_deoptimization_data(); | |
| 4557 | 4550 |
| 4558 inline int relocation_size(); | 4551 inline int relocation_size(); |
| 4559 | 4552 |
| 4560 // [flags]: Various code flags. | 4553 // [flags]: Various code flags. |
| 4561 inline Flags flags(); | 4554 inline Flags flags(); |
| 4562 inline void set_flags(Flags flags); | 4555 inline void set_flags(Flags flags); |
| 4563 | 4556 |
| 4564 // [flags]: Access to specific code flags. | 4557 // [flags]: Access to specific code flags. |
| 4565 inline Kind kind(); | 4558 inline Kind kind(); |
| 4566 inline InlineCacheState ic_state(); // Only valid for IC stubs. | 4559 inline InlineCacheState ic_state(); // Only valid for IC stubs. |
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| 5313 // properties. | 5306 // properties. |
| 5314 inline void set_is_access_check_needed(bool access_check_needed); | 5307 inline void set_is_access_check_needed(bool access_check_needed); |
| 5315 inline bool is_access_check_needed(); | 5308 inline bool is_access_check_needed(); |
| 5316 | 5309 |
| 5317 // [prototype]: implicit prototype object. | 5310 // [prototype]: implicit prototype object. |
| 5318 DECL_ACCESSORS(prototype, Object) | 5311 DECL_ACCESSORS(prototype, Object) |
| 5319 | 5312 |
| 5320 // [constructor]: points back to the function responsible for this map. | 5313 // [constructor]: points back to the function responsible for this map. |
| 5321 DECL_ACCESSORS(constructor, Object) | 5314 DECL_ACCESSORS(constructor, Object) |
| 5322 | 5315 |
| 5323 inline JSFunction* unchecked_constructor(); | |
| 5324 | |
| 5325 // [instance descriptors]: describes the object. | 5316 // [instance descriptors]: describes the object. |
| 5326 DECL_ACCESSORS(instance_descriptors, DescriptorArray) | 5317 DECL_ACCESSORS(instance_descriptors, DescriptorArray) |
| 5327 inline void InitializeDescriptors(DescriptorArray* descriptors); | 5318 inline void InitializeDescriptors(DescriptorArray* descriptors); |
| 5328 | 5319 |
| 5329 // [stub cache]: contains stubs compiled for this map. | 5320 // [stub cache]: contains stubs compiled for this map. |
| 5330 DECL_ACCESSORS(code_cache, Object) | 5321 DECL_ACCESSORS(code_cache, Object) |
| 5331 | 5322 |
| 5332 // [dependent code]: list of optimized codes that have this map embedded. | 5323 // [dependent code]: list of optimized codes that have this map embedded. |
| 5333 DECL_ACCESSORS(dependent_code, DependentCode) | 5324 DECL_ACCESSORS(dependent_code, DependentCode) |
| 5334 | 5325 |
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| 5366 inline int NumberOfProtoTransitions() { | 5357 inline int NumberOfProtoTransitions() { |
| 5367 FixedArray* cache = GetPrototypeTransitions(); | 5358 FixedArray* cache = GetPrototypeTransitions(); |
| 5368 if (cache->length() == 0) return 0; | 5359 if (cache->length() == 0) return 0; |
| 5369 return | 5360 return |
| 5370 Smi::cast(cache->get(kProtoTransitionNumberOfEntriesOffset))->value(); | 5361 Smi::cast(cache->get(kProtoTransitionNumberOfEntriesOffset))->value(); |
| 5371 } | 5362 } |
| 5372 | 5363 |
| 5373 inline void SetNumberOfProtoTransitions(int value) { | 5364 inline void SetNumberOfProtoTransitions(int value) { |
| 5374 FixedArray* cache = GetPrototypeTransitions(); | 5365 FixedArray* cache = GetPrototypeTransitions(); |
| 5375 ASSERT(cache->length() != 0); | 5366 ASSERT(cache->length() != 0); |
| 5376 cache->set_unchecked(kProtoTransitionNumberOfEntriesOffset, | 5367 cache->set(kProtoTransitionNumberOfEntriesOffset, Smi::FromInt(value)); |
| 5377 Smi::FromInt(value)); | |
| 5378 } | 5368 } |
| 5379 | 5369 |
| 5380 // Lookup in the map's instance descriptors and fill out the result | 5370 // Lookup in the map's instance descriptors and fill out the result |
| 5381 // with the given holder if the name is found. The holder may be | 5371 // with the given holder if the name is found. The holder may be |
| 5382 // NULL when this function is used from the compiler. | 5372 // NULL when this function is used from the compiler. |
| 5383 inline void LookupDescriptor(JSObject* holder, | 5373 inline void LookupDescriptor(JSObject* holder, |
| 5384 Name* name, | 5374 Name* name, |
| 5385 LookupResult* result); | 5375 LookupResult* result); |
| 5386 | 5376 |
| 5387 inline void LookupTransition(JSObject* holder, | 5377 inline void LookupTransition(JSObject* holder, |
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| 5933 static const int kFirstCodeSlot = FixedArray::kHeaderSize + 2 * kPointerSize; | 5923 static const int kFirstCodeSlot = FixedArray::kHeaderSize + 2 * kPointerSize; |
| 5934 static const int kSecondEntryIndex = kEntryLength + kEntriesStart; | 5924 static const int kSecondEntryIndex = kEntryLength + kEntriesStart; |
| 5935 static const int kInitialLength = kEntriesStart + kEntryLength; | 5925 static const int kInitialLength = kEntriesStart + kEntryLength; |
| 5936 | 5926 |
| 5937 // [scope_info]: Scope info. | 5927 // [scope_info]: Scope info. |
| 5938 DECL_ACCESSORS(scope_info, ScopeInfo) | 5928 DECL_ACCESSORS(scope_info, ScopeInfo) |
| 5939 | 5929 |
| 5940 // [construct stub]: Code stub for constructing instances of this function. | 5930 // [construct stub]: Code stub for constructing instances of this function. |
| 5941 DECL_ACCESSORS(construct_stub, Code) | 5931 DECL_ACCESSORS(construct_stub, Code) |
| 5942 | 5932 |
| 5943 inline Code* unchecked_code(); | |
| 5944 | |
| 5945 // Returns if this function has been compiled to native code yet. | 5933 // Returns if this function has been compiled to native code yet. |
| 5946 inline bool is_compiled(); | 5934 inline bool is_compiled(); |
| 5947 | 5935 |
| 5948 // [length]: The function length - usually the number of declared parameters. | 5936 // [length]: The function length - usually the number of declared parameters. |
| 5949 // Use up to 2^30 parameters. | 5937 // Use up to 2^30 parameters. |
| 5950 inline int length(); | 5938 inline int length(); |
| 5951 inline void set_length(int value); | 5939 inline void set_length(int value); |
| 5952 | 5940 |
| 5953 // [formal parameter count]: The declared number of parameters. | 5941 // [formal parameter count]: The declared number of parameters. |
| 5954 inline int formal_parameter_count(); | 5942 inline int formal_parameter_count(); |
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| 7125 DECL_ACCESSORS(data, Object) | 7113 DECL_ACCESSORS(data, Object) |
| 7126 | 7114 |
| 7127 inline Type TypeTag(); | 7115 inline Type TypeTag(); |
| 7128 inline int CaptureCount(); | 7116 inline int CaptureCount(); |
| 7129 inline Flags GetFlags(); | 7117 inline Flags GetFlags(); |
| 7130 inline String* Pattern(); | 7118 inline String* Pattern(); |
| 7131 inline Object* DataAt(int index); | 7119 inline Object* DataAt(int index); |
| 7132 // Set implementation data after the object has been prepared. | 7120 // Set implementation data after the object has been prepared. |
| 7133 inline void SetDataAt(int index, Object* value); | 7121 inline void SetDataAt(int index, Object* value); |
| 7134 | 7122 |
| 7135 // Used during GC when flushing code or setting age. | |
| 7136 inline Object* DataAtUnchecked(int index); | |
| 7137 inline void SetDataAtUnchecked(int index, Object* value, Heap* heap); | |
| 7138 inline Type TypeTagUnchecked(); | |
| 7139 | |
| 7140 static int code_index(bool is_ascii) { | 7123 static int code_index(bool is_ascii) { |
| 7141 if (is_ascii) { | 7124 if (is_ascii) { |
| 7142 return kIrregexpASCIICodeIndex; | 7125 return kIrregexpASCIICodeIndex; |
| 7143 } else { | 7126 } else { |
| 7144 return kIrregexpUC16CodeIndex; | 7127 return kIrregexpUC16CodeIndex; |
| 7145 } | 7128 } |
| 7146 } | 7129 } |
| 7147 | 7130 |
| 7148 static int saved_code_index(bool is_ascii) { | 7131 static int saved_code_index(bool is_ascii) { |
| 7149 if (is_ascii) { | 7132 if (is_ascii) { |
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| 9717 } else { | 9700 } else { |
| 9718 value &= ~(1 << bit_position); | 9701 value &= ~(1 << bit_position); |
| 9719 } | 9702 } |
| 9720 return value; | 9703 return value; |
| 9721 } | 9704 } |
| 9722 }; | 9705 }; |
| 9723 | 9706 |
| 9724 } } // namespace v8::internal | 9707 } } // namespace v8::internal |
| 9725 | 9708 |
| 9726 #endif // V8_OBJECTS_H_ | 9709 #endif // V8_OBJECTS_H_ |
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