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 

    28 namespace JSC {

    29     class JSGlobalData;

    30 }

    31 

    32 namespace WebCore {

    33 

    34 // Map from static HashTable instances to per-GlobalData ones.

    35 class DOMObjectHashTableMap {

    36 public:

    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 

    54 private:

    55     HashMap<const JSC::HashTable*, JSC::HashTable> m_map;

    56 };

    57 

    58 } // namespace WebCore

    59 

    60 #endif // DOMObjectHashTableMap_h