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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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2069 bool CreateInitialMaps(); | 2069 bool CreateInitialMaps(); |
2070 bool CreateInitialObjects(); | 2070 bool CreateInitialObjects(); |
2071 | 2071 |
2072 // These five Create*EntryStub functions are here and forced to not be inlined | 2072 // These five Create*EntryStub functions are here and forced to not be inlined |
2073 // because of a gcc-4.4 bug that assigns wrong vtable entries. | 2073 // because of a gcc-4.4 bug that assigns wrong vtable entries. |
2074 NO_INLINE(void CreateJSEntryStub()); | 2074 NO_INLINE(void CreateJSEntryStub()); |
2075 NO_INLINE(void CreateJSConstructEntryStub()); | 2075 NO_INLINE(void CreateJSConstructEntryStub()); |
2076 | 2076 |
2077 void CreateFixedStubs(); | 2077 void CreateFixedStubs(); |
2078 | 2078 |
2079 MUST_USE_RESULT MaybeObject* CreateOddball(Map* map, | |
2080 const char* to_string, | |
2081 Object* to_number, | |
2082 byte kind); | |
2083 | |
2084 // Allocate empty fixed array. | 2079 // Allocate empty fixed array. |
2085 MUST_USE_RESULT MaybeObject* AllocateEmptyFixedArray(); | 2080 MUST_USE_RESULT MaybeObject* AllocateEmptyFixedArray(); |
2086 | 2081 |
2087 // Allocate empty external array of given type. | 2082 // Allocate empty external array of given type. |
2088 MUST_USE_RESULT MaybeObject* AllocateEmptyExternalArray( | 2083 MUST_USE_RESULT MaybeObject* AllocateEmptyExternalArray( |
2089 ExternalArrayType array_type); | 2084 ExternalArrayType array_type); |
2090 | 2085 |
2091 // Allocate empty fixed typed array of given type. | 2086 // Allocate empty fixed typed array of given type. |
2092 MUST_USE_RESULT MaybeObject* AllocateEmptyFixedTypedArray( | 2087 MUST_USE_RESULT MaybeObject* AllocateEmptyFixedTypedArray( |
2093 ExternalArrayType array_type); | 2088 ExternalArrayType array_type); |
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2850 enum ResultsCacheType { REGEXP_MULTIPLE_INDICES, STRING_SPLIT_SUBSTRINGS }; | 2845 enum ResultsCacheType { REGEXP_MULTIPLE_INDICES, STRING_SPLIT_SUBSTRINGS }; |
2851 | 2846 |
2852 // Attempt to retrieve a cached result. On failure, 0 is returned as a Smi. | 2847 // Attempt to retrieve a cached result. On failure, 0 is returned as a Smi. |
2853 // On success, the returned result is guaranteed to be a COW-array. | 2848 // On success, the returned result is guaranteed to be a COW-array. |
2854 static Object* Lookup(Heap* heap, | 2849 static Object* Lookup(Heap* heap, |
2855 String* key_string, | 2850 String* key_string, |
2856 Object* key_pattern, | 2851 Object* key_pattern, |
2857 ResultsCacheType type); | 2852 ResultsCacheType type); |
2858 // Attempt to add value_array to the cache specified by type. On success, | 2853 // Attempt to add value_array to the cache specified by type. On success, |
2859 // value_array is turned into a COW-array. | 2854 // value_array is turned into a COW-array. |
2860 static void Enter(Heap* heap, | 2855 static void Enter(Isolate* isolate, |
2861 String* key_string, | 2856 Handle<String> key_string, |
2862 Object* key_pattern, | 2857 Handle<Object> key_pattern, |
2863 FixedArray* value_array, | 2858 Handle<FixedArray> value_array, |
2864 ResultsCacheType type); | 2859 ResultsCacheType type); |
2865 static void Clear(FixedArray* cache); | 2860 static void Clear(FixedArray* cache); |
2866 static const int kRegExpResultsCacheSize = 0x100; | 2861 static const int kRegExpResultsCacheSize = 0x100; |
2867 | 2862 |
2868 private: | 2863 private: |
2869 static const int kArrayEntriesPerCacheEntry = 4; | 2864 static const int kArrayEntriesPerCacheEntry = 4; |
2870 static const int kStringOffset = 0; | 2865 static const int kStringOffset = 0; |
2871 static const int kPatternOffset = 1; | 2866 static const int kPatternOffset = 1; |
2872 static const int kArrayOffset = 2; | 2867 static const int kArrayOffset = 2; |
2873 }; | 2868 }; |
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2980 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. | 2975 DisallowHeapAllocation no_allocation; // i.e. no gc allowed. |
2981 | 2976 |
2982 private: | 2977 private: |
2983 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); | 2978 DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer); |
2984 }; | 2979 }; |
2985 #endif // DEBUG | 2980 #endif // DEBUG |
2986 | 2981 |
2987 } } // namespace v8::internal | 2982 } } // namespace v8::internal |
2988 | 2983 |
2989 #endif // V8_HEAP_H_ | 2984 #endif // V8_HEAP_H_ |
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