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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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2566 | 2566 |
2567 // Constant for denoting key was not found. | 2567 // Constant for denoting key was not found. |
2568 static const int kNotFound = -1; | 2568 static const int kNotFound = -1; |
2569 | 2569 |
2570 static const int kBackPointerStorageIndex = 0; | 2570 static const int kBackPointerStorageIndex = 0; |
2571 static const int kEnumCacheIndex = 1; | 2571 static const int kEnumCacheIndex = 1; |
2572 static const int kTransitionsIndex = 2; | 2572 static const int kTransitionsIndex = 2; |
2573 static const int kFirstIndex = 3; | 2573 static const int kFirstIndex = 3; |
2574 | 2574 |
2575 // The length of the "bridge" to the enum cache. | 2575 // The length of the "bridge" to the enum cache. |
2576 static const int kEnumCacheBridgeLength = 3; | 2576 static const int kEnumCacheBridgeLength = 2; |
2577 static const int kEnumCacheBridgeLastAdded = 0; | 2577 static const int kEnumCacheBridgeCacheIndex = 0; |
2578 static const int kEnumCacheBridgeCacheIndex = 1; | 2578 static const int kEnumCacheBridgeIndicesCacheIndex = 1; |
2579 static const int kEnumCacheBridgeIndicesCacheIndex = 2; | |
2580 | 2579 |
2581 // Layout description. | 2580 // Layout description. |
2582 static const int kBackPointerStorageOffset = FixedArray::kHeaderSize; | 2581 static const int kBackPointerStorageOffset = FixedArray::kHeaderSize; |
2583 static const int kEnumCacheOffset = kBackPointerStorageOffset + | 2582 static const int kEnumCacheOffset = kBackPointerStorageOffset + |
2584 kPointerSize; | 2583 kPointerSize; |
2585 static const int kTransitionsOffset = kEnumCacheOffset + kPointerSize; | 2584 static const int kTransitionsOffset = kEnumCacheOffset + kPointerSize; |
2586 static const int kFirstOffset = kTransitionsOffset + kPointerSize; | 2585 static const int kFirstOffset = kTransitionsOffset + kPointerSize; |
2587 | 2586 |
2588 // Layout description for the bridge array. | 2587 // Layout description for the bridge array. |
2589 static const int kEnumCacheBridgeLastAddedOffset = FixedArray::kHeaderSize; | 2588 static const int kEnumCacheBridgeCacheOffset = FixedArray::kHeaderSize; |
2590 static const int kEnumCacheBridgeCacheOffset = | |
2591 kEnumCacheBridgeLastAddedOffset + kPointerSize; | |
2592 | 2589 |
2593 // Layout of descriptor. | 2590 // Layout of descriptor. |
2594 static const int kDescriptorKey = 0; | 2591 static const int kDescriptorKey = 0; |
2595 static const int kDescriptorDetails = 1; | 2592 static const int kDescriptorDetails = 1; |
2596 static const int kDescriptorValue = 2; | 2593 static const int kDescriptorValue = 2; |
2597 static const int kDescriptorSize = 3; | 2594 static const int kDescriptorSize = 3; |
2598 | 2595 |
2599 #ifdef OBJECT_PRINT | 2596 #ifdef OBJECT_PRINT |
2600 // Print all the descriptors. | 2597 // Print all the descriptors. |
2601 inline void PrintDescriptors() { | 2598 inline void PrintDescriptors() { |
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8876 } else { | 8873 } else { |
8877 value &= ~(1 << bit_position); | 8874 value &= ~(1 << bit_position); |
8878 } | 8875 } |
8879 return value; | 8876 return value; |
8880 } | 8877 } |
8881 }; | 8878 }; |
8882 | 8879 |
8883 } } // namespace v8::internal | 8880 } } // namespace v8::internal |
8884 | 8881 |
8885 #endif // V8_OBJECTS_H_ | 8882 #endif // V8_OBJECTS_H_ |
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