1/* 2 * Copyright (C) 2011 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 "bindings/v8/RetainedDOMInfo.h" 33 34#include "core/dom/ContainerNode.h" 35#include "core/dom/NodeTraversal.h" 36 37namespace WebCore { 38 39RetainedDOMInfo::RetainedDOMInfo(Node* root) 40 : m_root(root) 41{ 42 ASSERT(m_root); 43} 44 45RetainedDOMInfo::~RetainedDOMInfo() 46{ 47} 48 49void RetainedDOMInfo::Dispose() 50{ 51 delete this; 52} 53 54bool RetainedDOMInfo::IsEquivalent(v8::RetainedObjectInfo* other) 55{ 56 ASSERT(other); 57 if (other == this) 58 return true; 59 if (strcmp(GetLabel(), other->GetLabel())) 60 return false; 61 return static_cast<WebCore::RetainedObjectInfo*>(other)->GetEquivalenceClass() == this->GetEquivalenceClass(); 62} 63 64intptr_t RetainedDOMInfo::GetHash() 65{ 66 return PtrHash<void*>::hash(m_root); 67} 68 69const char* RetainedDOMInfo::GetGroupLabel() 70{ 71 return m_root->inDocument() ? "(Document DOM trees)" : "(Detached DOM trees)"; 72} 73 74const char* RetainedDOMInfo::GetLabel() 75{ 76 return m_root->inDocument() ? "Document DOM tree" : "Detached DOM tree"; 77} 78 79intptr_t RetainedDOMInfo::GetElementCount() 80{ 81 intptr_t count = 1; 82 Node* current = m_root; 83 while (current) { 84 current = NodeTraversal::next(current, m_root); 85 ++count; 86 } 87 return count; 88} 89 90intptr_t RetainedDOMInfo::GetEquivalenceClass() 91{ 92 return reinterpret_cast<intptr_t>(m_root); 93} 94 95} // namespace WebCore 96