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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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120 Handle<JSObject> holder, | 120 Handle<JSObject> holder, |
121 uint32_t key) { | 121 uint32_t key) { |
122 return GetType(receiver, holder, key, handle(holder->elements())); | 122 return GetType(receiver, holder, key, handle(holder->elements())); |
123 } | 123 } |
124 | 124 |
125 // Returns an element's accessors, or NULL if the element does not exist or | 125 // Returns an element's accessors, or NULL if the element does not exist or |
126 // is plain. This method doesn't iterate up the prototype chain. The caller | 126 // is plain. This method doesn't iterate up the prototype chain. The caller |
127 // can optionally pass in the backing store to use for the check, which must | 127 // can optionally pass in the backing store to use for the check, which must |
128 // be compatible with the ElementsKind of the ElementsAccessor. If | 128 // be compatible with the ElementsKind of the ElementsAccessor. If |
129 // backing_store is NULL, the holder->elements() is used as the backing store. | 129 // backing_store is NULL, the holder->elements() is used as the backing store. |
130 MUST_USE_RESULT virtual AccessorPair* GetAccessorPair( | 130 MUST_USE_RESULT virtual MaybeHandle<AccessorPair> GetAccessorPair( |
131 Object* receiver, | 131 Handle<Object> receiver, |
132 JSObject* holder, | 132 Handle<JSObject> holder, |
133 uint32_t key, | 133 uint32_t key, |
134 FixedArrayBase* backing_store = NULL) = 0; | 134 Handle<FixedArrayBase> backing_store) = 0; |
| 135 |
| 136 MUST_USE_RESULT inline MaybeHandle<AccessorPair> GetAccessorPair( |
| 137 Handle<Object> receiver, |
| 138 Handle<JSObject> holder, |
| 139 uint32_t key) { |
| 140 return GetAccessorPair(receiver, holder, key, handle(holder->elements())); |
| 141 } |
135 | 142 |
136 // Modifies the length data property as specified for JSArrays and resizes the | 143 // Modifies the length data property as specified for JSArrays and resizes the |
137 // underlying backing store accordingly. The method honors the semantics of | 144 // underlying backing store accordingly. The method honors the semantics of |
138 // changing array sizes as defined in EcmaScript 5.1 15.4.5.2, i.e. array that | 145 // changing array sizes as defined in EcmaScript 5.1 15.4.5.2, i.e. array that |
139 // have non-deletable elements can only be shrunk to the size of highest | 146 // have non-deletable elements can only be shrunk to the size of highest |
140 // element that is non-deletable. | 147 // element that is non-deletable. |
141 MUST_USE_RESULT virtual Handle<Object> SetLength( | 148 MUST_USE_RESULT virtual Handle<Object> SetLength( |
142 Handle<JSArray> holder, | 149 Handle<JSArray> holder, |
143 Handle<Object> new_length) = 0; | 150 Handle<Object> new_length) = 0; |
144 | 151 |
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273 | 280 |
274 void CheckArrayAbuse(JSObject* obj, const char* op, uint32_t key, | 281 void CheckArrayAbuse(JSObject* obj, const char* op, uint32_t key, |
275 bool allow_appending = false); | 282 bool allow_appending = false); |
276 | 283 |
277 Handle<Object> ArrayConstructInitializeElements(Handle<JSArray> array, | 284 Handle<Object> ArrayConstructInitializeElements(Handle<JSArray> array, |
278 Arguments* args); | 285 Arguments* args); |
279 | 286 |
280 } } // namespace v8::internal | 287 } } // namespace v8::internal |
281 | 288 |
282 #endif // V8_ELEMENTS_H_ | 289 #endif // V8_ELEMENTS_H_ |
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