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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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54 template <class S> Handle(Handle<S> handle) { | 54 template <class S> Handle(Handle<S> handle) { |
55 #ifdef DEBUG | 55 #ifdef DEBUG |
56 T* a = NULL; | 56 T* a = NULL; |
57 S* b = NULL; | 57 S* b = NULL; |
58 a = b; // Fake assignment to enforce type checks. | 58 a = b; // Fake assignment to enforce type checks. |
59 USE(a); | 59 USE(a); |
60 #endif | 60 #endif |
61 location_ = reinterpret_cast<T**>(handle.location_); | 61 location_ = reinterpret_cast<T**>(handle.location_); |
62 } | 62 } |
63 | 63 |
64 INLINE(T* operator ->() const) { return operator*(); } | 64 INLINE(T* operator->() const) { return operator*(); } |
65 | 65 |
66 // Check if this handle refers to the exact same object as the other handle. | 66 // Check if this handle refers to the exact same object as the other handle. |
67 INLINE(bool is_identical_to(const Handle<T> other) const); | 67 INLINE(bool is_identical_to(const Handle<T> other) const); |
68 | 68 |
69 // Provides the C++ dereference operator. | 69 // Provides the C++ dereference operator. |
70 INLINE(T* operator*() const); | 70 INLINE(T* operator*() const); |
71 | 71 |
72 // Returns the address to where the raw pointer is stored. | 72 // Returns the address to where the raw pointer is stored. |
73 INLINE(T** location() const); | 73 INLINE(T** location() const); |
74 | 74 |
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344 private: | 344 private: |
345 Isolate* isolate_; | 345 Isolate* isolate_; |
346 Object** limit_; | 346 Object** limit_; |
347 int level_; | 347 int level_; |
348 #endif | 348 #endif |
349 }; | 349 }; |
350 | 350 |
351 } } // namespace v8::internal | 351 } } // namespace v8::internal |
352 | 352 |
353 #endif // V8_HANDLES_H_ | 353 #endif // V8_HANDLES_H_ |
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