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Issue 1061753008: Revert of Remove the weak list of views from array buffers (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 8 months ago
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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_ELEMENTS_H_ 5 #ifndef V8_ELEMENTS_H_
6 #define V8_ELEMENTS_H_ 6 #define V8_ELEMENTS_H_
7 7
8 #include "src/elements-kind.h" 8 #include "src/elements-kind.h"
9 #include "src/heap/heap.h" 9 #include "src/heap/heap.h"
10 #include "src/isolate.h" 10 #include "src/isolate.h"
(...skipping 165 matching lines...) Expand 10 before | Expand all | Expand 10 after
176 } 176 }
177 177
178 static ElementsAccessor* ForArray(Handle<FixedArrayBase> array); 178 static ElementsAccessor* ForArray(Handle<FixedArrayBase> array);
179 179
180 static void InitializeOncePerProcess(); 180 static void InitializeOncePerProcess();
181 static void TearDown(); 181 static void TearDown();
182 182
183 protected: 183 protected:
184 friend class SloppyArgumentsElementsAccessor; 184 friend class SloppyArgumentsElementsAccessor;
185 185
186 virtual uint32_t GetCapacity(Handle<JSObject> holder, 186 virtual uint32_t GetCapacity(Handle<FixedArrayBase> backing_store) = 0;
187 Handle<FixedArrayBase> backing_store) = 0;
188 187
189 // Element handlers distinguish between indexes and keys when they manipulate 188 // Element handlers distinguish between indexes and keys when they manipulate
190 // elements. Indexes refer to elements in terms of their location in the 189 // elements. Indexes refer to elements in terms of their location in the
191 // underlying storage's backing store representation, and are between 0 and 190 // underlying storage's backing store representation, and are between 0 and
192 // GetCapacity. Keys refer to elements in terms of the value that would be 191 // GetCapacity. Keys refer to elements in terms of the value that would be
193 // specified in JavaScript to access the element. In most implementations, 192 // specified in JavaScript to access the element. In most implementations,
194 // keys are equivalent to indexes, and GetKeyForIndex returns the same value 193 // keys are equivalent to indexes, and GetKeyForIndex returns the same value
195 // it is passed. In the NumberDictionary ElementsAccessor, GetKeyForIndex maps 194 // it is passed. In the NumberDictionary ElementsAccessor, GetKeyForIndex maps
196 // the index to a key using the KeyAt method on the NumberDictionary. 195 // the index to a key using the KeyAt method on the NumberDictionary.
197 virtual uint32_t GetKeyForIndex(Handle<FixedArrayBase> backing_store, 196 virtual uint32_t GetKeyForIndex(Handle<FixedArrayBase> backing_store,
198 uint32_t index) = 0; 197 uint32_t index) = 0;
199 198
200 private: 199 private:
201 static ElementsAccessor** elements_accessors_; 200 static ElementsAccessor** elements_accessors_;
202 const char* name_; 201 const char* name_;
203 202
204 DISALLOW_COPY_AND_ASSIGN(ElementsAccessor); 203 DISALLOW_COPY_AND_ASSIGN(ElementsAccessor);
205 }; 204 };
206 205
207 void CheckArrayAbuse(Handle<JSObject> obj, const char* op, uint32_t key, 206 void CheckArrayAbuse(Handle<JSObject> obj, const char* op, uint32_t key,
208 bool allow_appending = false); 207 bool allow_appending = false);
209 208
210 MUST_USE_RESULT MaybeHandle<Object> ArrayConstructInitializeElements( 209 MUST_USE_RESULT MaybeHandle<Object> ArrayConstructInitializeElements(
211 Handle<JSArray> array, 210 Handle<JSArray> array,
212 Arguments* args); 211 Arguments* args);
213 212
214 } } // namespace v8::internal 213 } } // namespace v8::internal
215 214
216 #endif // V8_ELEMENTS_H_ 215 #endif // V8_ELEMENTS_H_
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