1/*
2 *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
3 *  Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009 Apple Inc. All rights reserved.
4 *  Copyright (C) 2007 Samuel Weinig <sam@webkit.org>
5 *  Copyright (C) 2009 Google, Inc. All rights reserved.
6 *
7 *  This library is free software; you can redistribute it and/or
8 *  modify it under the terms of the GNU Lesser General Public
9 *  License as published by the Free Software Foundation; either
10 *  version 2 of the License, or (at your option) any later version.
11 *
12 *  This library is distributed in the hope that it will be useful,
13 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
14 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 *  Lesser General Public License for more details.
16 *
17 *  You should have received a copy of the GNU Lesser General Public
18 *  License along with this library; if not, write to the Free Software
19 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
20 */
21
22#ifndef DOMObjectHashTableMap_h
23#define DOMObjectHashTableMap_h
24
25#include <runtime/Lookup.h>
26#include <wtf/HashMap.h>
27
28namespace JSC {
29    class JSGlobalData;
30}
31
32namespace WebCore {
33
34// Map from static HashTable instances to per-GlobalData ones.
35class DOMObjectHashTableMap {
36public:
37    static DOMObjectHashTableMap& mapFor(JSC::JSGlobalData&);
38
39    ~DOMObjectHashTableMap()
40    {
41        HashMap<const JSC::HashTable*, JSC::HashTable>::iterator mapEnd = m_map.end();
42        for (HashMap<const JSC::HashTable*, JSC::HashTable>::iterator iter = m_map.begin(); iter != m_map.end(); ++iter)
43            iter->second.deleteTable();
44    }
45
46    const JSC::HashTable* get(const JSC::HashTable* staticTable)
47    {
48        HashMap<const JSC::HashTable*, JSC::HashTable>::iterator iter = m_map.find(staticTable);
49        if (iter != m_map.end())
50            return &iter->second;
51        return &m_map.set(staticTable, JSC::HashTable(*staticTable)).first->second;
52    }
53
54private:
55    HashMap<const JSC::HashTable*, JSC::HashTable> m_map;
56};
57
58} // namespace WebCore
59
60#endif // DOMObjectHashTableMap_h
61