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 "RetainedDOMInfo.h"
33
34 #include "Node.h"
35
36 namespace WebCore {
37
RetainedDOMInfo(Node * root)38 RetainedDOMInfo::RetainedDOMInfo(Node* root)
39 : m_root(root)
40 {
41 ASSERT(m_root);
42 }
43
~RetainedDOMInfo()44 RetainedDOMInfo::~RetainedDOMInfo()
45 {
46 }
47
Dispose()48 void RetainedDOMInfo::Dispose()
49 {
50 delete this;
51 }
52
IsEquivalent(v8::RetainedObjectInfo * other)53 bool RetainedDOMInfo::IsEquivalent(v8::RetainedObjectInfo* other)
54 {
55 ASSERT(other);
56 return other == this || static_cast<WebCore::RetainedObjectInfo*>(other)->GetEquivalenceClass() == this->GetEquivalenceClass();
57 }
58
GetHash()59 intptr_t RetainedDOMInfo::GetHash()
60 {
61 return reinterpret_cast<intptr_t>(m_root);
62 }
63
GetLabel()64 const char* RetainedDOMInfo::GetLabel()
65 {
66 return m_root->inDocument() ? "Document DOM tree" : "Detached DOM tree";
67 }
68
GetElementCount()69 intptr_t RetainedDOMInfo::GetElementCount()
70 {
71 intptr_t count = 1;
72 Node* current = m_root;
73 while (current) {
74 current = current->traverseNextNode(m_root);
75 ++count;
76 }
77 return count;
78 }
79
GetEquivalenceClass()80 intptr_t RetainedDOMInfo::GetEquivalenceClass()
81 {
82 return reinterpret_cast<intptr_t>(m_root);
83 }
84
85 } // namespace WebCore
86