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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 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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| 232 } | 232 } |
| 233 | 233 |
| 234 // Is the result a property or a transition? | 234 // Is the result a property or a transition? |
| 235 bool IsPropertyOrTransition() { | 235 bool IsPropertyOrTransition() { |
| 236 return IsFound() && (type() != NULL_DESCRIPTOR); | 236 return IsFound() && (type() != NULL_DESCRIPTOR); |
| 237 } | 237 } |
| 238 | 238 |
| 239 bool IsCacheable() { return cacheable_; } | 239 bool IsCacheable() { return cacheable_; } |
| 240 void DisallowCaching() { cacheable_ = false; } | 240 void DisallowCaching() { cacheable_ = false; } |
| 241 | 241 |
| 242 // Tells whether the value needs to be loaded. | |
| 243 bool IsLoaded() { | |
| 244 if (lookup_type_ == DESCRIPTOR_TYPE || lookup_type_ == DICTIONARY_TYPE) { | |
| 245 Object* target = GetLazyValue(); | |
| 246 return !target->IsJSObject() || JSObject::cast(target)->IsLoaded(); | |
| 247 } | |
| 248 return true; | |
| 249 } | |
| 250 | |
| 251 Object* GetLazyValue() { | 242 Object* GetLazyValue() { |
| 252 switch (type()) { | 243 switch (type()) { |
| 253 case FIELD: | 244 case FIELD: |
| 254 return holder()->FastPropertyAt(GetFieldIndex()); | 245 return holder()->FastPropertyAt(GetFieldIndex()); |
| 255 case NORMAL: { | 246 case NORMAL: { |
| 256 Object* value; | 247 Object* value; |
| 257 value = holder()->property_dictionary()->ValueAt(GetDictionaryEntry()); | 248 value = holder()->property_dictionary()->ValueAt(GetDictionaryEntry()); |
| 258 if (holder()->IsGlobalObject()) { | 249 if (holder()->IsGlobalObject()) { |
| 259 value = JSGlobalPropertyCell::cast(value)->value(); | 250 value = JSGlobalPropertyCell::cast(value)->value(); |
| 260 } | 251 } |
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| 315 JSObject* holder_; | 306 JSObject* holder_; |
| 316 int number_; | 307 int number_; |
| 317 bool cacheable_; | 308 bool cacheable_; |
| 318 PropertyDetails details_; | 309 PropertyDetails details_; |
| 319 }; | 310 }; |
| 320 | 311 |
| 321 | 312 |
| 322 } } // namespace v8::internal | 313 } } // namespace v8::internal |
| 323 | 314 |
| 324 #endif // V8_PROPERTY_H_ | 315 #endif // V8_PROPERTY_H_ |
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