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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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108 // MapSpace::CreateBackPointers depends on this. | 108 // MapSpace::CreateBackPointers depends on this. |
109 class MapTransitionDescriptor: public Descriptor { | 109 class MapTransitionDescriptor: public Descriptor { |
110 public: | 110 public: |
111 MapTransitionDescriptor(String* key, Map* map, PropertyAttributes attributes) | 111 MapTransitionDescriptor(String* key, Map* map, PropertyAttributes attributes) |
112 : Descriptor(key, map, attributes, MAP_TRANSITION) { } | 112 : Descriptor(key, map, attributes, MAP_TRANSITION) { } |
113 }; | 113 }; |
114 | 114 |
115 class ElementsTransitionDescriptor: public Descriptor { | 115 class ElementsTransitionDescriptor: public Descriptor { |
116 public: | 116 public: |
117 ElementsTransitionDescriptor(String* key, | 117 ElementsTransitionDescriptor(String* key, |
118 Map* map, | 118 Object* map_or_array) |
119 ElementsKind elements_kind) | 119 : Descriptor(key, map_or_array, PropertyDetails(NONE, |
120 : Descriptor(key, map, PropertyDetails(NONE, | 120 ELEMENTS_TRANSITION)) { } |
121 ELEMENTS_TRANSITION, | |
122 elements_kind)) { } | |
123 }; | 121 }; |
124 | 122 |
125 // Marks a field name in a map so that adding the field is guaranteed | 123 // Marks a field name in a map so that adding the field is guaranteed |
126 // to create a FIELD descriptor in the new map. Used after adding | 124 // to create a FIELD descriptor in the new map. Used after adding |
127 // a constant function the first time, creating a CONSTANT_FUNCTION | 125 // a constant function the first time, creating a CONSTANT_FUNCTION |
128 // descriptor in the new map. This avoids creating multiple maps with | 126 // descriptor in the new map. This avoids creating multiple maps with |
129 // the same CONSTANT_FUNCTION field. | 127 // the same CONSTANT_FUNCTION field. |
130 class ConstTransitionDescriptor: public Descriptor { | 128 class ConstTransitionDescriptor: public Descriptor { |
131 public: | 129 public: |
132 explicit ConstTransitionDescriptor(String* key, Map* map) | 130 explicit ConstTransitionDescriptor(String* key, Map* map) |
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195 number_ = -1; | 193 number_ = -1; |
196 } | 194 } |
197 | 195 |
198 void DictionaryResult(JSObject* holder, int entry) { | 196 void DictionaryResult(JSObject* holder, int entry) { |
199 lookup_type_ = DICTIONARY_TYPE; | 197 lookup_type_ = DICTIONARY_TYPE; |
200 holder_ = holder; | 198 holder_ = holder; |
201 details_ = holder->property_dictionary()->DetailsAt(entry); | 199 details_ = holder->property_dictionary()->DetailsAt(entry); |
202 number_ = entry; | 200 number_ = entry; |
203 } | 201 } |
204 | 202 |
205 void HandlerResult() { | 203 void HandlerResult(JSProxy* proxy) { |
206 lookup_type_ = HANDLER_TYPE; | 204 lookup_type_ = HANDLER_TYPE; |
207 holder_ = NULL; | 205 holder_ = proxy; |
208 details_ = PropertyDetails(NONE, HANDLER); | 206 details_ = PropertyDetails(NONE, HANDLER); |
209 cacheable_ = false; | 207 cacheable_ = false; |
210 } | 208 } |
211 | 209 |
212 void InterceptorResult(JSObject* holder) { | 210 void InterceptorResult(JSObject* holder) { |
213 lookup_type_ = INTERCEPTOR_TYPE; | 211 lookup_type_ = INTERCEPTOR_TYPE; |
214 holder_ = holder; | 212 holder_ = holder; |
215 details_ = PropertyDetails(NONE, INTERCEPTOR); | 213 details_ = PropertyDetails(NONE, INTERCEPTOR); |
216 } | 214 } |
217 | 215 |
218 void NotFound() { | 216 void NotFound() { |
219 lookup_type_ = NOT_FOUND; | 217 lookup_type_ = NOT_FOUND; |
220 } | 218 } |
221 | 219 |
222 JSObject* holder() { | 220 JSObject* holder() { |
223 ASSERT(IsFound()); | 221 ASSERT(IsFound()); |
224 return holder_; | 222 return JSObject::cast(holder_); |
| 223 } |
| 224 |
| 225 JSProxy* proxy() { |
| 226 ASSERT(IsFound()); |
| 227 return JSProxy::cast(holder_); |
225 } | 228 } |
226 | 229 |
227 PropertyType type() { | 230 PropertyType type() { |
228 ASSERT(IsFound()); | 231 ASSERT(IsFound()); |
229 return details_.type(); | 232 return details_.type(); |
230 } | 233 } |
231 | 234 |
232 PropertyAttributes GetAttributes() { | 235 PropertyAttributes GetAttributes() { |
233 ASSERT(IsFound()); | 236 ASSERT(IsFound()); |
234 return details_.attributes(); | 237 return details_.attributes(); |
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347 // Where did we find the result; | 350 // Where did we find the result; |
348 enum { | 351 enum { |
349 NOT_FOUND, | 352 NOT_FOUND, |
350 DESCRIPTOR_TYPE, | 353 DESCRIPTOR_TYPE, |
351 DICTIONARY_TYPE, | 354 DICTIONARY_TYPE, |
352 HANDLER_TYPE, | 355 HANDLER_TYPE, |
353 INTERCEPTOR_TYPE, | 356 INTERCEPTOR_TYPE, |
354 CONSTANT_TYPE | 357 CONSTANT_TYPE |
355 } lookup_type_; | 358 } lookup_type_; |
356 | 359 |
357 JSObject* holder_; | 360 JSReceiver* holder_; |
358 int number_; | 361 int number_; |
359 bool cacheable_; | 362 bool cacheable_; |
360 PropertyDetails details_; | 363 PropertyDetails details_; |
361 }; | 364 }; |
362 | 365 |
363 | 366 |
364 } } // namespace v8::internal | 367 } } // namespace v8::internal |
365 | 368 |
366 #endif // V8_PROPERTY_H_ | 369 #endif // V8_PROPERTY_H_ |
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