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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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