runtime/ClassInfo.h

   1 /*
   2  *  Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
   3  *  Copyright (C) 2001 Peter Kelly (pmk@post.com)
   4  *  Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
   5  *
   6  *  This library is free software; you can redistribute it and/or
   7  *  modify it under the terms of the GNU Library General Public
   8  *  License as published by the Free Software Foundation; either
   9  *  version 2 of the License, or (at your option) any later version.
  10  *
  11  *  This library is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  *  Library General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU Library General Public License
  17  *  along with this library; see the file COPYING.LIB.  If not, write to
  18  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  *  Boston, MA 02110-1301, USA.
  20  *
  21  */
  22
  23 #ifndef ClassInfo_h
  24 #define ClassInfo_h
  25
  26 #include "CallFrame.h"
  27
  28 namespace JSC {
  29
  30     class HashEntry;
  31     struct HashTable;
  32
  33     struct ClassInfo {
  34         /**
  35          * A string denoting the class name. Example: "Window".
  36          */
  37         const char* className;
  38
  39         /**
  40          * Pointer to the class information of the base class.
  41          * 0L if there is none.
  42          */
  43         const ClassInfo* parentClass;
  44         /**
  45          * Static hash-table of properties.
  46          * For classes that can be used from multiple threads, it is accessed via a getter function that would typically return a pointer to thread-specific value.
  47          */
  48         const HashTable* propHashTable(ExecState* exec) const
  49         {
  50             if (classPropHashTableGetterFunction)
  51                 return classPropHashTableGetterFunction(exec);
  52             return staticPropHashTable;
  53         }
  54
  55         const HashTable* staticPropHashTable;
  56         typedef const HashTable* (*ClassPropHashTableGetterFunction)(ExecState*);
  57         const ClassPropHashTableGetterFunction classPropHashTableGetterFunction;
  58     };
  59
  60 } // namespace JSC
  61
  62 #endif // ClassInfo_h