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Issue 1094863002: Remove the weak list of views from array buffers (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: updates 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<FixedArrayBase> backing_store) = 0; 186 virtual uint32_t GetCapacity(Handle<JSObject> holder,
187 Handle<FixedArrayBase> backing_store) = 0;
187 188
188 // Element handlers distinguish between indexes and keys when they manipulate 189 // Element handlers distinguish between indexes and keys when they manipulate
189 // elements. Indexes refer to elements in terms of their location in the 190 // elements. Indexes refer to elements in terms of their location in the
190 // underlying storage's backing store representation, and are between 0 and 191 // underlying storage's backing store representation, and are between 0 and
191 // GetCapacity. Keys refer to elements in terms of the value that would be 192 // GetCapacity. Keys refer to elements in terms of the value that would be
192 // specified in JavaScript to access the element. In most implementations, 193 // specified in JavaScript to access the element. In most implementations,
193 // keys are equivalent to indexes, and GetKeyForIndex returns the same value 194 // keys are equivalent to indexes, and GetKeyForIndex returns the same value
194 // it is passed. In the NumberDictionary ElementsAccessor, GetKeyForIndex maps 195 // it is passed. In the NumberDictionary ElementsAccessor, GetKeyForIndex maps
195 // the index to a key using the KeyAt method on the NumberDictionary. 196 // the index to a key using the KeyAt method on the NumberDictionary.
196 virtual uint32_t GetKeyForIndex(Handle<FixedArrayBase> backing_store, 197 virtual uint32_t GetKeyForIndex(Handle<FixedArrayBase> backing_store,
197 uint32_t index) = 0; 198 uint32_t index) = 0;
198 199
199 private: 200 private:
200 static ElementsAccessor** elements_accessors_; 201 static ElementsAccessor** elements_accessors_;
201 const char* name_; 202 const char* name_;
202 203
203 DISALLOW_COPY_AND_ASSIGN(ElementsAccessor); 204 DISALLOW_COPY_AND_ASSIGN(ElementsAccessor);
204 }; 205 };
205 206
206 void CheckArrayAbuse(Handle<JSObject> obj, const char* op, uint32_t key, 207 void CheckArrayAbuse(Handle<JSObject> obj, const char* op, uint32_t key,
207 bool allow_appending = false); 208 bool allow_appending = false);
208 209
209 MUST_USE_RESULT MaybeHandle<Object> ArrayConstructInitializeElements( 210 MUST_USE_RESULT MaybeHandle<Object> ArrayConstructInitializeElements(
210 Handle<JSArray> array, 211 Handle<JSArray> array,
211 Arguments* args); 212 Arguments* args);
212 213
213 } } // namespace v8::internal 214 } } // namespace v8::internal
214 215
215 #endif // V8_ELEMENTS_H_ 216 #endif // V8_ELEMENTS_H_
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