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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_RENDERER_EXTENSIONS_SCOPED_PERSISTENT_H_ | 5 #ifndef CHROME_RENDERER_EXTENSIONS_SCOPED_PERSISTENT_H_ |
6 #define CHROME_RENDERER_EXTENSIONS_SCOPED_PERSISTENT_H_ | 6 #define CHROME_RENDERER_EXTENSIONS_SCOPED_PERSISTENT_H_ |
7 | 7 |
8 #include "base/logging.h" | 8 #include "base/logging.h" |
9 #include "v8/include/v8.h" | 9 #include "v8/include/v8.h" |
10 | 10 |
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40 handle_.Clear(); | 40 handle_.Clear(); |
41 } | 41 } |
42 | 42 |
43 v8::Handle<T> operator->() const { | 43 v8::Handle<T> operator->() const { |
44 return get(); | 44 return get(); |
45 } | 45 } |
46 | 46 |
47 // TODO(dcarney): Remove this function | 47 // TODO(dcarney): Remove this function |
48 // This is an unsafe access to the underlying handle | 48 // This is an unsafe access to the underlying handle |
49 v8::Handle<T> get() const { | 49 v8::Handle<T> get() const { |
50 return *reinterpret_cast<v8::Handle<T>*>( | 50 return bit_cast<v8::Handle<T> >(handle_); |
51 const_cast<v8::Persistent<T>* >(&handle_)); | |
52 } | 51 } |
53 | 52 |
54 v8::Handle<T> NewHandle() const { | 53 v8::Handle<T> NewHandle() const { |
55 if (handle_.IsEmpty()) | 54 if (handle_.IsEmpty()) |
56 return v8::Local<T>(); | 55 return v8::Local<T>(); |
57 return v8::Local<T>::New(GetIsolate(handle_), handle_); | 56 return v8::Local<T>::New(GetIsolate(handle_), handle_); |
58 } | 57 } |
59 | 58 |
60 template<typename P> | 59 template<typename P> |
61 void MakeWeak(P* parameters, | 60 void MakeWeak(P* parameters, |
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83 } | 82 } |
84 | 83 |
85 v8::Persistent<T> handle_; | 84 v8::Persistent<T> handle_; |
86 | 85 |
87 DISALLOW_COPY_AND_ASSIGN(ScopedPersistent); | 86 DISALLOW_COPY_AND_ASSIGN(ScopedPersistent); |
88 }; | 87 }; |
89 | 88 |
90 } // namespace extensions | 89 } // namespace extensions |
91 | 90 |
92 #endif // CHROME_RENDERER_EXTENSIONS_SCOPED_PERSISTENT_H_ | 91 #endif // CHROME_RENDERER_EXTENSIONS_SCOPED_PERSISTENT_H_ |
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