| OLD | NEW |
| (Empty) |
| 1 /* | |
| 2 * Copyright (C) 2009 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef ScopedPersistent_h | |
| 32 #define ScopedPersistent_h | |
| 33 | |
| 34 #include <v8.h> | |
| 35 #include "wtf/Noncopyable.h" | |
| 36 | |
| 37 namespace WebCore { | |
| 38 | |
| 39 template<typename T> | |
| 40 class ScopedPersistent { | |
| 41 WTF_MAKE_NONCOPYABLE(ScopedPersistent); | |
| 42 public: | |
| 43 ScopedPersistent() { } | |
| 44 | |
| 45 ScopedPersistent(v8::Isolate* isolate, v8::Handle<T> handle) | |
| 46 : m_handle(isolate, handle) | |
| 47 { | |
| 48 } | |
| 49 | |
| 50 ~ScopedPersistent() | |
| 51 { | |
| 52 clear(); | |
| 53 } | |
| 54 | |
| 55 ALWAYS_INLINE v8::Local<T> newLocal(v8::Isolate* isolate) const | |
| 56 { | |
| 57 return v8::Local<T>::New(isolate, m_handle); | |
| 58 } | |
| 59 | |
| 60 template<typename P> | |
| 61 void setWeak(P* parameters, void (*callback)(const v8::WeakCallbackData<T, P
>&)) | |
| 62 { | |
| 63 m_handle.SetWeak(parameters, callback); | |
| 64 } | |
| 65 | |
| 66 bool isEmpty() const { return m_handle.IsEmpty(); } | |
| 67 bool isWeak() const { return m_handle.IsWeak(); } | |
| 68 | |
| 69 void set(v8::Isolate* isolate, v8::Handle<T> handle) | |
| 70 { | |
| 71 m_handle.Reset(isolate, handle); | |
| 72 } | |
| 73 | |
| 74 // Note: This is clear in the OwnPtr sense, not the v8::Handle sense. | |
| 75 void clear() | |
| 76 { | |
| 77 m_handle.Reset(); | |
| 78 } | |
| 79 | |
| 80 bool operator==(const ScopedPersistent<T>& other) | |
| 81 { | |
| 82 return m_handle == other.m_handle; | |
| 83 } | |
| 84 | |
| 85 template <class S> | |
| 86 bool operator==(const v8::Handle<S> other) const | |
| 87 { | |
| 88 return m_handle == other; | |
| 89 } | |
| 90 | |
| 91 private: | |
| 92 // FIXME: This function does an unsafe handle access. Remove it. | |
| 93 friend class V8AbstractEventListener; | |
| 94 friend class V8PerIsolateData; | |
| 95 ALWAYS_INLINE v8::Persistent<T>& getUnsafe() | |
| 96 { | |
| 97 return m_handle; | |
| 98 } | |
| 99 | |
| 100 v8::Persistent<T> m_handle; | |
| 101 }; | |
| 102 | |
| 103 } // namespace WebCore | |
| 104 | |
| 105 #endif // ScopedPersistent_h | |
| OLD | NEW |