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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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194 lookup_type_ = INTERCEPTOR_TYPE; | 194 lookup_type_ = INTERCEPTOR_TYPE; |
195 holder_ = holder; | 195 holder_ = holder; |
196 details_ = PropertyDetails(NONE, INTERCEPTOR); | 196 details_ = PropertyDetails(NONE, INTERCEPTOR); |
197 } | 197 } |
198 | 198 |
199 void NotFound() { | 199 void NotFound() { |
200 lookup_type_ = NOT_FOUND; | 200 lookup_type_ = NOT_FOUND; |
201 } | 201 } |
202 | 202 |
203 JSObject* holder() { | 203 JSObject* holder() { |
204 ASSERT(IsValid()); | 204 ASSERT(IsFound()); |
205 return holder_; | 205 return holder_; |
206 } | 206 } |
207 | 207 |
208 PropertyType type() { | 208 PropertyType type() { |
209 ASSERT(IsValid()); | 209 ASSERT(IsFound()); |
210 return details_.type(); | 210 return details_.type(); |
211 } | 211 } |
212 | 212 |
213 bool IsTransitionType() { | |
214 PropertyType t = type(); | |
215 if (t == MAP_TRANSITION || t == CONSTANT_TRANSITION) return true; | |
216 return false; | |
217 } | |
218 | |
219 PropertyAttributes GetAttributes() { | 213 PropertyAttributes GetAttributes() { |
220 ASSERT(IsValid()); | 214 ASSERT(IsFound()); |
221 return details_.attributes(); | 215 return details_.attributes(); |
222 } | 216 } |
223 | 217 |
224 PropertyDetails GetPropertyDetails() { | 218 PropertyDetails GetPropertyDetails() { |
225 return details_; | 219 return details_; |
226 } | 220 } |
227 | 221 |
228 bool IsReadOnly() { return details_.IsReadOnly(); } | 222 bool IsReadOnly() { return details_.IsReadOnly(); } |
229 bool IsDontDelete() { return details_.IsDontDelete(); } | 223 bool IsDontDelete() { return details_.IsDontDelete(); } |
230 bool IsDontEnum() { return details_.IsDontEnum(); } | 224 bool IsDontEnum() { return details_.IsDontEnum(); } |
231 bool IsDeleted() { return details_.IsDeleted(); } | 225 bool IsDeleted() { return details_.IsDeleted(); } |
| 226 bool IsFound() { return lookup_type_ != NOT_FOUND; } |
232 | 227 |
233 bool IsValid() { return lookup_type_ != NOT_FOUND; } | 228 // Is the result is a property excluding transitions and the null |
234 bool IsNotFound() { return lookup_type_ == NOT_FOUND; } | 229 // descriptor? |
| 230 bool IsProperty() { |
| 231 return IsFound() && (type() < FIRST_PHANTOM_PROPERTY_TYPE); |
| 232 } |
235 | 233 |
236 // Tells whether the result is a property. | 234 // Is the result a property or a transition? |
237 // Excluding transitions and the null descriptor. | 235 bool IsPropertyOrTransition() { |
238 bool IsProperty() { | 236 return IsFound() && (type() != NULL_DESCRIPTOR); |
239 return IsValid() && type() < FIRST_PHANTOM_PROPERTY_TYPE; | |
240 } | 237 } |
241 | 238 |
242 bool IsCacheable() { return cacheable_; } | 239 bool IsCacheable() { return cacheable_; } |
243 void DisallowCaching() { cacheable_ = false; } | 240 void DisallowCaching() { cacheable_ = false; } |
244 | 241 |
245 // Tells whether the value needs to be loaded. | 242 // Tells whether the value needs to be loaded. |
246 bool IsLoaded() { | 243 bool IsLoaded() { |
247 if (lookup_type_ == DESCRIPTOR_TYPE || lookup_type_ == DICTIONARY_TYPE) { | 244 if (lookup_type_ == DESCRIPTOR_TYPE || lookup_type_ == DICTIONARY_TYPE) { |
248 Object* target = GetLazyValue(); | 245 Object* target = GetLazyValue(); |
249 return !target->IsJSObject() || JSObject::cast(target)->IsLoaded(); | 246 return !target->IsJSObject() || JSObject::cast(target)->IsLoaded(); |
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318 JSObject* holder_; | 315 JSObject* holder_; |
319 int number_; | 316 int number_; |
320 bool cacheable_; | 317 bool cacheable_; |
321 PropertyDetails details_; | 318 PropertyDetails details_; |
322 }; | 319 }; |
323 | 320 |
324 | 321 |
325 } } // namespace v8::internal | 322 } } // namespace v8::internal |
326 | 323 |
327 #endif // V8_PROPERTY_H_ | 324 #endif // V8_PROPERTY_H_ |
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