| OLD | NEW | 
|---|
| 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 | 
| (...skipping 208 matching lines...) Expand 10 before | Expand all | Expand 10 after  Loading... | 
| 219     return AddElementsToFixedArray( | 219     return AddElementsToFixedArray( | 
| 220         receiver, holder, to, handle(holder->elements())); | 220         receiver, holder, to, handle(holder->elements())); | 
| 221   } | 221   } | 
| 222 | 222 | 
| 223   // Returns a shared ElementsAccessor for the specified ElementsKind. | 223   // Returns a shared ElementsAccessor for the specified ElementsKind. | 
| 224   static ElementsAccessor* ForKind(ElementsKind elements_kind) { | 224   static ElementsAccessor* ForKind(ElementsKind elements_kind) { | 
| 225     ASSERT(elements_kind < kElementsKindCount); | 225     ASSERT(elements_kind < kElementsKindCount); | 
| 226     return elements_accessors_[elements_kind]; | 226     return elements_accessors_[elements_kind]; | 
| 227   } | 227   } | 
| 228 | 228 | 
| 229   // TODO(ishell): Temporary wrapper until handlified. | 229   static ElementsAccessor* ForArray(Handle<FixedArrayBase> array); | 
| 230   inline static ElementsAccessor* ForArray(Handle<FixedArrayBase> array) { |  | 
| 231     return ForArray(*array); |  | 
| 232   } |  | 
| 233   static ElementsAccessor* ForArray(FixedArrayBase* array); |  | 
| 234 | 230 | 
| 235   static void InitializeOncePerProcess(); | 231   static void InitializeOncePerProcess(); | 
| 236   static void TearDown(); | 232   static void TearDown(); | 
| 237 | 233 | 
| 238  protected: | 234  protected: | 
| 239   friend class SloppyArgumentsElementsAccessor; | 235   friend class SloppyArgumentsElementsAccessor; | 
| 240 | 236 | 
| 241   virtual uint32_t GetCapacity(FixedArrayBase* backing_store) = 0; | 237   virtual uint32_t GetCapacity(Handle<FixedArrayBase> backing_store) = 0; | 
| 242 | 238 | 
| 243   // Element handlers distinguish between indexes and keys when they manipulate | 239   // Element handlers distinguish between indexes and keys when they manipulate | 
| 244   // elements.  Indexes refer to elements in terms of their location in the | 240   // elements.  Indexes refer to elements in terms of their location in the | 
| 245   // underlying storage's backing store representation, and are between 0 and | 241   // underlying storage's backing store representation, and are between 0 and | 
| 246   // GetCapacity.  Keys refer to elements in terms of the value that would be | 242   // GetCapacity.  Keys refer to elements in terms of the value that would be | 
| 247   // specified in JavaScript to access the element. In most implementations, | 243   // specified in JavaScript to access the element. In most implementations, | 
| 248   // keys are equivalent to indexes, and GetKeyForIndex returns the same value | 244   // keys are equivalent to indexes, and GetKeyForIndex returns the same value | 
| 249   // it is passed. In the NumberDictionary ElementsAccessor, GetKeyForIndex maps | 245   // it is passed. In the NumberDictionary ElementsAccessor, GetKeyForIndex maps | 
| 250   // the index to a key using the KeyAt method on the NumberDictionary. | 246   // the index to a key using the KeyAt method on the NumberDictionary. | 
| 251   virtual uint32_t GetKeyForIndex(Handle<FixedArrayBase> backing_store, | 247   virtual uint32_t GetKeyForIndex(Handle<FixedArrayBase> backing_store, | 
| 252                                   uint32_t index) = 0; | 248                                   uint32_t index) = 0; | 
| 253 | 249 | 
| 254   // TODO(ishell): Non-handlified versions, used only by accessors' |  | 
| 255   // implementations. To be removed once elements.cc is handlified. |  | 
| 256   MUST_USE_RESULT virtual PropertyAttributes GetAttributes( |  | 
| 257       Object* receiver, |  | 
| 258       JSObject* holder, |  | 
| 259       uint32_t key, |  | 
| 260       FixedArrayBase* backing_store) = 0; |  | 
| 261 |  | 
| 262   MUST_USE_RESULT virtual PropertyType GetType( |  | 
| 263       Object* receiver, |  | 
| 264       JSObject* holder, |  | 
| 265       uint32_t key, |  | 
| 266       FixedArrayBase* backing_store) = 0; |  | 
| 267 |  | 
| 268  private: | 250  private: | 
| 269   static ElementsAccessor** elements_accessors_; | 251   static ElementsAccessor** elements_accessors_; | 
| 270   const char* name_; | 252   const char* name_; | 
| 271 | 253 | 
| 272   DISALLOW_COPY_AND_ASSIGN(ElementsAccessor); | 254   DISALLOW_COPY_AND_ASSIGN(ElementsAccessor); | 
| 273 }; | 255 }; | 
| 274 | 256 | 
| 275 void CheckArrayAbuse(Handle<JSObject> obj, const char* op, uint32_t key, | 257 void CheckArrayAbuse(Handle<JSObject> obj, const char* op, uint32_t key, | 
| 276                      bool allow_appending = false); | 258                      bool allow_appending = false); | 
| 277 | 259 | 
| 278 Handle<Object> ArrayConstructInitializeElements(Handle<JSArray> array, | 260 Handle<Object> ArrayConstructInitializeElements(Handle<JSArray> array, | 
| 279                                                 Arguments* args); | 261                                                 Arguments* args); | 
| 280 | 262 | 
| 281 } }  // namespace v8::internal | 263 } }  // namespace v8::internal | 
| 282 | 264 | 
| 283 #endif  // V8_ELEMENTS_H_ | 265 #endif  // V8_ELEMENTS_H_ | 
| OLD | NEW | 
|---|