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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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7290 | 7290 |
7291 // The JSWeakMap describes EcmaScript Harmony weak maps | 7291 // The JSWeakMap describes EcmaScript Harmony weak maps |
7292 class JSWeakMap: public JSObject { | 7292 class JSWeakMap: public JSObject { |
7293 public: | 7293 public: |
7294 // [table]: the backing hash table mapping keys to values. | 7294 // [table]: the backing hash table mapping keys to values. |
7295 DECL_ACCESSORS(table, Object) | 7295 DECL_ACCESSORS(table, Object) |
7296 | 7296 |
7297 // [next]: linked list of encountered weak maps during GC. | 7297 // [next]: linked list of encountered weak maps during GC. |
7298 DECL_ACCESSORS(next, Object) | 7298 DECL_ACCESSORS(next, Object) |
7299 | 7299 |
7300 // Unchecked accessors to be used during GC. | |
7301 inline ObjectHashTable* unchecked_table(); | |
7302 | |
7303 // Casting. | 7300 // Casting. |
7304 static inline JSWeakMap* cast(Object* obj); | 7301 static inline JSWeakMap* cast(Object* obj); |
7305 | 7302 |
7306 #ifdef OBJECT_PRINT | 7303 #ifdef OBJECT_PRINT |
7307 inline void JSWeakMapPrint() { | 7304 inline void JSWeakMapPrint() { |
7308 JSWeakMapPrint(stdout); | 7305 JSWeakMapPrint(stdout); |
7309 } | 7306 } |
7310 void JSWeakMapPrint(FILE* out); | 7307 void JSWeakMapPrint(FILE* out); |
7311 #endif | 7308 #endif |
7312 #ifdef DEBUG | 7309 #ifdef DEBUG |
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7962 } else { | 7959 } else { |
7963 value &= ~(1 << bit_position); | 7960 value &= ~(1 << bit_position); |
7964 } | 7961 } |
7965 return value; | 7962 return value; |
7966 } | 7963 } |
7967 }; | 7964 }; |
7968 | 7965 |
7969 } } // namespace v8::internal | 7966 } } // namespace v8::internal |
7970 | 7967 |
7971 #endif // V8_OBJECTS_H_ | 7968 #endif // V8_OBJECTS_H_ |
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