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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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1343 return GetContentArray()->get(ToValueIndex(descriptor_number)); | 1343 return GetContentArray()->get(ToValueIndex(descriptor_number)); |
1344 } | 1344 } |
1345 | 1345 |
1346 | 1346 |
1347 Smi* DescriptorArray::GetDetails(int descriptor_number) { | 1347 Smi* DescriptorArray::GetDetails(int descriptor_number) { |
1348 ASSERT(descriptor_number < number_of_descriptors()); | 1348 ASSERT(descriptor_number < number_of_descriptors()); |
1349 return Smi::cast(GetContentArray()->get(ToDetailsIndex(descriptor_number))); | 1349 return Smi::cast(GetContentArray()->get(ToDetailsIndex(descriptor_number))); |
1350 } | 1350 } |
1351 | 1351 |
1352 | 1352 |
| 1353 PropertyType DescriptorArray::GetType(int descriptor_number) { |
| 1354 ASSERT(descriptor_number < number_of_descriptors()); |
| 1355 return PropertyDetails(GetDetails(descriptor_number)).type(); |
| 1356 } |
| 1357 |
| 1358 |
| 1359 int DescriptorArray::GetFieldIndex(int descriptor_number) { |
| 1360 return Descriptor::IndexFromValue(GetValue(descriptor_number)); |
| 1361 } |
| 1362 |
| 1363 |
| 1364 JSFunction* DescriptorArray::GetConstantFunction(int descriptor_number) { |
| 1365 return JSFunction::cast(GetValue(descriptor_number)); |
| 1366 } |
| 1367 |
| 1368 |
| 1369 Object* DescriptorArray::GetCallbacksObject(int descriptor_number) { |
| 1370 ASSERT(GetType(descriptor_number) == CALLBACKS); |
| 1371 return GetValue(descriptor_number); |
| 1372 } |
| 1373 |
| 1374 |
| 1375 AccessorDescriptor* DescriptorArray::GetCallbacks(int descriptor_number) { |
| 1376 ASSERT(GetType(descriptor_number) == CALLBACKS); |
| 1377 Proxy* p = Proxy::cast(GetCallbacksObject(descriptor_number)); |
| 1378 return reinterpret_cast<AccessorDescriptor*>(p->proxy()); |
| 1379 } |
| 1380 |
| 1381 |
| 1382 bool DescriptorArray::IsProperty(int descriptor_number) { |
| 1383 return GetType(descriptor_number) < FIRST_PHANTOM_PROPERTY_TYPE; |
| 1384 } |
| 1385 |
| 1386 |
| 1387 bool DescriptorArray::IsTransition(int descriptor_number) { |
| 1388 PropertyType t = GetType(descriptor_number); |
| 1389 return t == MAP_TRANSITION || t == CONSTANT_TRANSITION; |
| 1390 } |
| 1391 |
| 1392 |
| 1393 bool DescriptorArray::IsNullDescriptor(int descriptor_number) { |
| 1394 return GetType(descriptor_number) == NULL_DESCRIPTOR; |
| 1395 } |
| 1396 |
| 1397 |
| 1398 bool DescriptorArray::IsDontEnum(int descriptor_number) { |
| 1399 return PropertyDetails(GetDetails(descriptor_number)).IsDontEnum(); |
| 1400 } |
| 1401 |
| 1402 |
1353 void DescriptorArray::Get(int descriptor_number, Descriptor* desc) { | 1403 void DescriptorArray::Get(int descriptor_number, Descriptor* desc) { |
1354 desc->Init(GetKey(descriptor_number), | 1404 desc->Init(GetKey(descriptor_number), |
1355 GetValue(descriptor_number), | 1405 GetValue(descriptor_number), |
1356 GetDetails(descriptor_number)); | 1406 GetDetails(descriptor_number)); |
1357 } | 1407 } |
1358 | 1408 |
1359 | 1409 |
1360 void DescriptorArray::Set(int descriptor_number, Descriptor* desc) { | 1410 void DescriptorArray::Set(int descriptor_number, Descriptor* desc) { |
1361 // Range check. | 1411 // Range check. |
1362 ASSERT(descriptor_number < number_of_descriptors()); | 1412 ASSERT(descriptor_number < number_of_descriptors()); |
1363 | 1413 |
1364 // Make sure non of the elements in desc are in new space. | 1414 // Make sure non of the elements in desc are in new space. |
1365 ASSERT(!Heap::InNewSpace(desc->GetKey())); | 1415 ASSERT(!Heap::InNewSpace(desc->GetKey())); |
1366 ASSERT(!Heap::InNewSpace(desc->GetValue())); | 1416 ASSERT(!Heap::InNewSpace(desc->GetValue())); |
1367 | 1417 |
1368 fast_set(this, ToKeyIndex(descriptor_number), desc->GetKey()); | 1418 fast_set(this, ToKeyIndex(descriptor_number), desc->GetKey()); |
1369 FixedArray* content_array = GetContentArray(); | 1419 FixedArray* content_array = GetContentArray(); |
1370 fast_set(content_array, ToValueIndex(descriptor_number), desc->GetValue()); | 1420 fast_set(content_array, ToValueIndex(descriptor_number), desc->GetValue()); |
1371 fast_set(content_array, ToDetailsIndex(descriptor_number), | 1421 fast_set(content_array, ToDetailsIndex(descriptor_number), |
1372 desc->GetDetails().AsSmi()); | 1422 desc->GetDetails().AsSmi()); |
1373 } | 1423 } |
1374 | 1424 |
1375 | 1425 |
| 1426 void DescriptorArray::SetFrom(int index, DescriptorArray* src, int src_index) { |
| 1427 Descriptor desc; |
| 1428 src->Get(src_index, &desc); |
| 1429 Set(index, &desc); |
| 1430 } |
| 1431 |
| 1432 |
1376 void DescriptorArray::Swap(int first, int second) { | 1433 void DescriptorArray::Swap(int first, int second) { |
1377 fast_swap(this, ToKeyIndex(first), ToKeyIndex(second)); | 1434 fast_swap(this, ToKeyIndex(first), ToKeyIndex(second)); |
1378 FixedArray* content_array = GetContentArray(); | 1435 FixedArray* content_array = GetContentArray(); |
1379 fast_swap(content_array, ToValueIndex(first), ToValueIndex(second)); | 1436 fast_swap(content_array, ToValueIndex(first), ToValueIndex(second)); |
1380 fast_swap(content_array, ToDetailsIndex(first), ToDetailsIndex(second)); | 1437 fast_swap(content_array, ToDetailsIndex(first), ToDetailsIndex(second)); |
1381 } | 1438 } |
1382 | 1439 |
1383 | 1440 |
1384 bool NumberDictionary::requires_slow_elements() { | 1441 bool NumberDictionary::requires_slow_elements() { |
1385 Object* max_index_object = get(kMaxNumberKeyIndex); | 1442 Object* max_index_object = get(kMaxNumberKeyIndex); |
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2707 #undef WRITE_INT_FIELD | 2764 #undef WRITE_INT_FIELD |
2708 #undef READ_SHORT_FIELD | 2765 #undef READ_SHORT_FIELD |
2709 #undef WRITE_SHORT_FIELD | 2766 #undef WRITE_SHORT_FIELD |
2710 #undef READ_BYTE_FIELD | 2767 #undef READ_BYTE_FIELD |
2711 #undef WRITE_BYTE_FIELD | 2768 #undef WRITE_BYTE_FIELD |
2712 | 2769 |
2713 | 2770 |
2714 } } // namespace v8::internal | 2771 } } // namespace v8::internal |
2715 | 2772 |
2716 #endif // V8_OBJECTS_INL_H_ | 2773 #endif // V8_OBJECTS_INL_H_ |
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