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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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226 PropertyDetails(PropertyAttributes attributes, | 226 PropertyDetails(PropertyAttributes attributes, |
227 PropertyType type, | 227 PropertyType type, |
228 Representation representation, | 228 Representation representation, |
229 int field_index = 0) { | 229 int field_index = 0) { |
230 value_ = TypeField::encode(type) | 230 value_ = TypeField::encode(type) |
231 | AttributesField::encode(attributes) | 231 | AttributesField::encode(attributes) |
232 | RepresentationField::encode(EncodeRepresentation(representation)) | 232 | RepresentationField::encode(EncodeRepresentation(representation)) |
233 | FieldIndexField::encode(field_index); | 233 | FieldIndexField::encode(field_index); |
234 } | 234 } |
235 | 235 |
236 int pointer() { return DescriptorPointer::decode(value_); } | 236 int pointer() const { return DescriptorPointer::decode(value_); } |
237 | 237 |
238 PropertyDetails set_pointer(int i) { return PropertyDetails(value_, i); } | 238 PropertyDetails set_pointer(int i) { return PropertyDetails(value_, i); } |
239 | 239 |
240 PropertyDetails CopyWithRepresentation(Representation representation) { | 240 PropertyDetails CopyWithRepresentation(Representation representation) const { |
241 return PropertyDetails(value_, representation); | 241 return PropertyDetails(value_, representation); |
242 } | 242 } |
243 PropertyDetails CopyAddAttributes(PropertyAttributes new_attributes) { | 243 PropertyDetails CopyAddAttributes(PropertyAttributes new_attributes) { |
244 new_attributes = | 244 new_attributes = |
245 static_cast<PropertyAttributes>(attributes() | new_attributes); | 245 static_cast<PropertyAttributes>(attributes() | new_attributes); |
246 return PropertyDetails(value_, new_attributes); | 246 return PropertyDetails(value_, new_attributes); |
247 } | 247 } |
248 | 248 |
249 // Conversion for storing details as Object*. | 249 // Conversion for storing details as Object*. |
250 explicit inline PropertyDetails(Smi* smi); | 250 explicit inline PropertyDetails(Smi* smi); |
251 inline Smi* AsSmi(); | 251 inline Smi* AsSmi() const; |
252 | 252 |
253 static uint8_t EncodeRepresentation(Representation representation) { | 253 static uint8_t EncodeRepresentation(Representation representation) { |
254 return representation.kind(); | 254 return representation.kind(); |
255 } | 255 } |
256 | 256 |
257 static Representation DecodeRepresentation(uint32_t bits) { | 257 static Representation DecodeRepresentation(uint32_t bits) { |
258 return Representation::FromKind(static_cast<Representation::Kind>(bits)); | 258 return Representation::FromKind(static_cast<Representation::Kind>(bits)); |
259 } | 259 } |
260 | 260 |
261 PropertyType type() { return TypeField::decode(value_); } | 261 PropertyType type() const { return TypeField::decode(value_); } |
262 | 262 |
263 PropertyAttributes attributes() const { | 263 PropertyAttributes attributes() const { |
264 return AttributesField::decode(value_); | 264 return AttributesField::decode(value_); |
265 } | 265 } |
266 | 266 |
267 int dictionary_index() { | 267 int dictionary_index() const { |
268 return DictionaryStorageField::decode(value_); | 268 return DictionaryStorageField::decode(value_); |
269 } | 269 } |
270 | 270 |
271 Representation representation() { | 271 Representation representation() const { |
272 ASSERT(type() != NORMAL); | 272 ASSERT(type() != NORMAL); |
273 return DecodeRepresentation(RepresentationField::decode(value_)); | 273 return DecodeRepresentation(RepresentationField::decode(value_)); |
274 } | 274 } |
275 | 275 |
276 int field_index() { | 276 int field_index() const { |
277 return FieldIndexField::decode(value_); | 277 return FieldIndexField::decode(value_); |
278 } | 278 } |
279 | 279 |
280 inline PropertyDetails AsDeleted(); | 280 inline PropertyDetails AsDeleted() const; |
281 | 281 |
282 static bool IsValidIndex(int index) { | 282 static bool IsValidIndex(int index) { |
283 return DictionaryStorageField::is_valid(index); | 283 return DictionaryStorageField::is_valid(index); |
284 } | 284 } |
285 | 285 |
286 bool IsReadOnly() const { return (attributes() & READ_ONLY) != 0; } | 286 bool IsReadOnly() const { return (attributes() & READ_ONLY) != 0; } |
287 bool IsDontDelete() const { return (attributes() & DONT_DELETE) != 0; } | 287 bool IsDontDelete() const { return (attributes() & DONT_DELETE) != 0; } |
288 bool IsDontEnum() const { return (attributes() & DONT_ENUM) != 0; } | 288 bool IsDontEnum() const { return (attributes() & DONT_ENUM) != 0; } |
289 bool IsDeleted() const { return DeletedField::decode(value_) != 0;} | 289 bool IsDeleted() const { return DeletedField::decode(value_) != 0;} |
290 | 290 |
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320 PropertyDetails(int value, PropertyAttributes attributes) { | 320 PropertyDetails(int value, PropertyAttributes attributes) { |
321 value_ = AttributesField::update(value, attributes); | 321 value_ = AttributesField::update(value, attributes); |
322 } | 322 } |
323 | 323 |
324 uint32_t value_; | 324 uint32_t value_; |
325 }; | 325 }; |
326 | 326 |
327 } } // namespace v8::internal | 327 } } // namespace v8::internal |
328 | 328 |
329 #endif // V8_PROPERTY_DETAILS_H_ | 329 #endif // V8_PROPERTY_DETAILS_H_ |
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