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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_OBJECTS_H_ | 5 #ifndef V8_OBJECTS_H_ |
| 6 #define V8_OBJECTS_H_ | 6 #define V8_OBJECTS_H_ |
| 7 | 7 |
| 8 #include <iosfwd> | 8 #include <iosfwd> |
| 9 | 9 |
| 10 #include "src/allocation.h" | 10 #include "src/allocation.h" |
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| 80 // - Dictionary | 80 // - Dictionary |
| 81 // - StringTable | 81 // - StringTable |
| 82 // - CompilationCacheTable | 82 // - CompilationCacheTable |
| 83 // - CodeCacheHashTable | 83 // - CodeCacheHashTable |
| 84 // - MapCache | 84 // - MapCache |
| 85 // - OrderedHashTable | 85 // - OrderedHashTable |
| 86 // - OrderedHashSet | 86 // - OrderedHashSet |
| 87 // - OrderedHashMap | 87 // - OrderedHashMap |
| 88 // - Context | 88 // - Context |
| 89 // - TypeFeedbackVector | 89 // - TypeFeedbackVector |
| 90 // - JSFunctionResultCache | |
| 91 // - ScopeInfo | 90 // - ScopeInfo |
| 92 // - TransitionArray | 91 // - TransitionArray |
| 93 // - ScriptContextTable | 92 // - ScriptContextTable |
| 94 // - WeakFixedArray | 93 // - WeakFixedArray |
| 95 // - FixedDoubleArray | 94 // - FixedDoubleArray |
| 96 // - Name | 95 // - Name |
| 97 // - String | 96 // - String |
| 98 // - SeqString | 97 // - SeqString |
| 99 // - SeqOneByteString | 98 // - SeqOneByteString |
| 100 // - SeqTwoByteString | 99 // - SeqTwoByteString |
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| 979 V(JSMap) \ | 978 V(JSMap) \ |
| 980 V(JSSetIterator) \ | 979 V(JSSetIterator) \ |
| 981 V(JSMapIterator) \ | 980 V(JSMapIterator) \ |
| 982 V(JSWeakCollection) \ | 981 V(JSWeakCollection) \ |
| 983 V(JSWeakMap) \ | 982 V(JSWeakMap) \ |
| 984 V(JSWeakSet) \ | 983 V(JSWeakSet) \ |
| 985 V(JSRegExp) \ | 984 V(JSRegExp) \ |
| 986 V(HashTable) \ | 985 V(HashTable) \ |
| 987 V(Dictionary) \ | 986 V(Dictionary) \ |
| 988 V(StringTable) \ | 987 V(StringTable) \ |
| 989 V(JSFunctionResultCache) \ | |
| 990 V(NormalizedMapCache) \ | 988 V(NormalizedMapCache) \ |
| 991 V(CompilationCacheTable) \ | 989 V(CompilationCacheTable) \ |
| 992 V(CodeCacheHashTable) \ | 990 V(CodeCacheHashTable) \ |
| 993 V(PolymorphicCodeCacheHashTable) \ | 991 V(PolymorphicCodeCacheHashTable) \ |
| 994 V(MapCache) \ | 992 V(MapCache) \ |
| 995 V(Primitive) \ | 993 V(Primitive) \ |
| 996 V(GlobalObject) \ | 994 V(GlobalObject) \ |
| 997 V(JSGlobalObject) \ | 995 V(JSGlobalObject) \ |
| 998 V(JSBuiltinsObject) \ | 996 V(JSBuiltinsObject) \ |
| 999 V(JSGlobalProxy) \ | 997 V(JSGlobalProxy) \ |
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| 3823 // Adds (or overwrites) the value associated with the given key. Mapping a | 3821 // Adds (or overwrites) the value associated with the given key. Mapping a |
| 3824 // key to the hole value causes removal of the whole entry. | 3822 // key to the hole value causes removal of the whole entry. |
| 3825 MUST_USE_RESULT static Handle<WeakValueHashTable> PutWeak( | 3823 MUST_USE_RESULT static Handle<WeakValueHashTable> PutWeak( |
| 3826 Handle<WeakValueHashTable> table, Handle<Object> key, | 3824 Handle<WeakValueHashTable> table, Handle<Object> key, |
| 3827 Handle<HeapObject> value); | 3825 Handle<HeapObject> value); |
| 3828 | 3826 |
| 3829 static Handle<FixedArray> GetWeakValues(Handle<WeakValueHashTable> table); | 3827 static Handle<FixedArray> GetWeakValues(Handle<WeakValueHashTable> table); |
| 3830 }; | 3828 }; |
| 3831 | 3829 |
| 3832 | 3830 |
| 3833 // JSFunctionResultCache caches results of some JSFunction invocation. | |
| 3834 // It is a fixed array with fixed structure: | |
| 3835 // [0]: factory function | |
| 3836 // [1]: finger index | |
| 3837 // [2]: current cache size | |
| 3838 // [3]: dummy field. | |
| 3839 // The rest of array are key/value pairs. | |
| 3840 class JSFunctionResultCache : public FixedArray { | |
| 3841 public: | |
| 3842 static const int kFactoryIndex = 0; | |
| 3843 static const int kFingerIndex = kFactoryIndex + 1; | |
| 3844 static const int kCacheSizeIndex = kFingerIndex + 1; | |
| 3845 static const int kDummyIndex = kCacheSizeIndex + 1; | |
| 3846 static const int kEntriesIndex = kDummyIndex + 1; | |
| 3847 | |
| 3848 static const int kEntrySize = 2; // key + value | |
| 3849 | |
| 3850 static const int kFactoryOffset = kHeaderSize; | |
| 3851 static const int kFingerOffset = kFactoryOffset + kPointerSize; | |
| 3852 static const int kCacheSizeOffset = kFingerOffset + kPointerSize; | |
| 3853 | |
| 3854 inline void MakeZeroSize(); | |
| 3855 inline void Clear(); | |
| 3856 | |
| 3857 inline int size(); | |
| 3858 inline void set_size(int size); | |
| 3859 inline int finger_index(); | |
| 3860 inline void set_finger_index(int finger_index); | |
| 3861 | |
| 3862 DECLARE_CAST(JSFunctionResultCache) | |
| 3863 | |
| 3864 DECLARE_VERIFIER(JSFunctionResultCache) | |
| 3865 }; | |
| 3866 | |
| 3867 | |
| 3868 // ScopeInfo represents information about different scopes of a source | 3831 // ScopeInfo represents information about different scopes of a source |
| 3869 // program and the allocation of the scope's variables. Scope information | 3832 // program and the allocation of the scope's variables. Scope information |
| 3870 // is stored in a compressed form in ScopeInfo objects and is used | 3833 // is stored in a compressed form in ScopeInfo objects and is used |
| 3871 // at runtime (stack dumps, deoptimization, etc.). | 3834 // at runtime (stack dumps, deoptimization, etc.). |
| 3872 | 3835 |
| 3873 // This object provides quick access to scope info details for runtime | 3836 // This object provides quick access to scope info details for runtime |
| 3874 // routines. | 3837 // routines. |
| 3875 class ScopeInfo : public FixedArray { | 3838 class ScopeInfo : public FixedArray { |
| 3876 public: | 3839 public: |
| 3877 DECLARE_CAST(ScopeInfo) | 3840 DECLARE_CAST(ScopeInfo) |
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| 10592 } else { | 10555 } else { |
| 10593 value &= ~(1 << bit_position); | 10556 value &= ~(1 << bit_position); |
| 10594 } | 10557 } |
| 10595 return value; | 10558 return value; |
| 10596 } | 10559 } |
| 10597 }; | 10560 }; |
| 10598 | 10561 |
| 10599 } } // namespace v8::internal | 10562 } } // namespace v8::internal |
| 10600 | 10563 |
| 10601 #endif // V8_OBJECTS_H_ | 10564 #endif // V8_OBJECTS_H_ |
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