15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2009 Google Inc. All rights reserved. 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Redistribution and use in source and binary forms, with or without 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modification, are permitted provided that the following conditions are 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * met: 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions of source code must retain the above copyright 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * notice, this list of conditions and the following disclaimer. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Redistributions in binary form must reproduce the above 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * copyright notice, this list of conditions and the following disclaimer 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * in the documentation and/or other materials provided with the 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * distribution. 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * * Neither the name of Google Inc. nor the names of its 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * contributors may be used to endorse or promote products derived from 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * this software without specific prior written permission. 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#ifndef SharedPersistent_h 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#define SharedPersistent_h 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 34197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include "bindings/core/v8/ScopedPersistent.h" 3553e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "wtf/PassRefPtr.h" 3653e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "wtf/RefCounted.h" 37197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch#include <v8.h> 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 39c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 41197021e6b966cfb06891637935ef33fff06433d1Ben Murdochtemplate <typename T> 42197021e6b966cfb06891637935ef33fff06433d1Ben Murdochclass SharedPersistent : public RefCounted<SharedPersistent<T> > { 43197021e6b966cfb06891637935ef33fff06433d1Ben MurdochWTF_MAKE_NONCOPYABLE(SharedPersistent); 44197021e6b966cfb06891637935ef33fff06433d1Ben Murdochpublic: 45197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch static PassRefPtr<SharedPersistent<T> > create(v8::Handle<T> value, v8::Isolate* isolate) 46197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch { 47197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch return adoptRef(new SharedPersistent<T>(value, isolate)); 48197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch } 49521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles) 50197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch v8::Local<T> newLocal(v8::Isolate* isolate) const 51197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch { 52197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch return m_value.newLocal(isolate); 53197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch } 54521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles) 55197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch bool isEmpty() { return m_value.isEmpty(); } 56521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles) 57197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch bool operator==(const SharedPersistent<T>& other) 58197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch { 59197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch return m_value == other.m_value; 60197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch } 61521d96ec04ace82590870fb04353ec4f82bb150fTorne (Richard Coles) 62197021e6b966cfb06891637935ef33fff06433d1Ben Murdochprivate: 63197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch explicit SharedPersistent(v8::Handle<T> value, v8::Isolate* isolate) : m_value(isolate, value) { } 64197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch ScopedPersistent<T> m_value; 65197021e6b966cfb06891637935ef33fff06433d1Ben Murdoch}; 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 67c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)} // namespace blink 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#endif // SharedPersistent_h 70