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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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3829 static const int kHeapObjectMapOffset = 0; | 3829 static const int kHeapObjectMapOffset = 0; |
3830 static const int kMapInstanceTypeOffset = 1 * kApiPointerSize + kApiIntSize; | 3830 static const int kMapInstanceTypeOffset = 1 * kApiPointerSize + kApiIntSize; |
3831 static const int kStringResourceOffset = | 3831 static const int kStringResourceOffset = |
3832 InternalConstants<kApiPointerSize>::kStringResourceOffset; | 3832 InternalConstants<kApiPointerSize>::kStringResourceOffset; |
3833 | 3833 |
3834 static const int kForeignAddressOffset = kApiPointerSize; | 3834 static const int kForeignAddressOffset = kApiPointerSize; |
3835 static const int kJSObjectHeaderSize = 3 * kApiPointerSize; | 3835 static const int kJSObjectHeaderSize = 3 * kApiPointerSize; |
3836 static const int kFullStringRepresentationMask = 0x07; | 3836 static const int kFullStringRepresentationMask = 0x07; |
3837 static const int kExternalTwoByteRepresentationTag = 0x02; | 3837 static const int kExternalTwoByteRepresentationTag = 0x02; |
3838 | 3838 |
3839 static const int kJSObjectType = 0xa7; | 3839 static const int kJSObjectType = 0xa8; |
3840 static const int kFirstNonstringType = 0x80; | 3840 static const int kFirstNonstringType = 0x80; |
3841 static const int kForeignType = 0x85; | 3841 static const int kForeignType = 0x85; |
3842 | 3842 |
3843 static inline bool HasHeapObjectTag(internal::Object* value) { | 3843 static inline bool HasHeapObjectTag(internal::Object* value) { |
3844 return ((reinterpret_cast<intptr_t>(value) & kHeapObjectTagMask) == | 3844 return ((reinterpret_cast<intptr_t>(value) & kHeapObjectTagMask) == |
3845 kHeapObjectTag); | 3845 kHeapObjectTag); |
3846 } | 3846 } |
3847 | 3847 |
3848 static inline bool HasSmiTag(internal::Object* value) { | 3848 static inline bool HasSmiTag(internal::Object* value) { |
3849 return ((reinterpret_cast<intptr_t>(value) & kSmiTagMask) == kSmiTag); | 3849 return ((reinterpret_cast<intptr_t>(value) & kSmiTagMask) == kSmiTag); |
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4268 | 4268 |
4269 | 4269 |
4270 } // namespace v8 | 4270 } // namespace v8 |
4271 | 4271 |
4272 | 4272 |
4273 #undef V8EXPORT | 4273 #undef V8EXPORT |
4274 #undef TYPE_CHECK | 4274 #undef TYPE_CHECK |
4275 | 4275 |
4276 | 4276 |
4277 #endif // V8_H_ | 4277 #endif // V8_H_ |
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