1/* 2 * Copyright (C) 2008, 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#include "config.h" 32#include "ScriptInstance.h" 33 34#ifndef NDEBUG 35#include "V8Proxy.h" 36#endif 37#include <wtf/Assertions.h> 38 39namespace WebCore { 40 41V8ScriptInstance::V8ScriptInstance() 42{ 43} 44 45V8ScriptInstance::V8ScriptInstance(v8::Handle<v8::Object> instance) 46{ 47 set(instance); 48} 49 50V8ScriptInstance::~V8ScriptInstance() 51{ 52 clear(); 53} 54 55v8::Persistent<v8::Object> V8ScriptInstance::instance() 56{ 57 return m_instance; 58} 59 60void V8ScriptInstance::clear() 61{ 62 if (m_instance.IsEmpty()) 63 return; 64#ifndef NDEBUG 65 V8GCController::unregisterGlobalHandle(this, m_instance); 66#endif 67 m_instance.Dispose(); 68 m_instance.Clear(); 69} 70 71void V8ScriptInstance::set(v8::Handle<v8::Object> instance) 72{ 73 clear(); 74 if (instance.IsEmpty()) 75 return; 76 77 m_instance = v8::Persistent<v8::Object>::New(instance); 78#ifndef NDEBUG 79 V8GCController::registerGlobalHandle(SCRIPTINSTANCE, this, m_instance); 80#endif 81} 82 83} // namespace WebCore 84