kjs/CommonIdentifiers.cpp

   1 /*
   2  *  Copyright (C) 2003, 2007 Apple Computer, Inc
   3  *
   4  *  This library is free software; you can redistribute it and/or
   5  *  modify it under the terms of the GNU Library General Public
   6  *  License as published by the Free Software Foundation; either
   7  *  version 2 of the License, or (at your option) any later version.
   8  *
   9  *  This library is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  *  Library General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU Library General Public License
  15  *  along with this library; see the file COPYING.LIB.  If not, write to
  16  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  *  Boston, MA 02110-1301, USA.
  18  *
  19  */
  20
  21 #include "CommonIdentifiers.h"
  22
  23 #include <config.h>
  24 #include "JSLock.h"
  25
  26 namespace KJS {
  27
  28 const char* const nullCString = 0;
  29
  30 #define INITIALIZE_PROPERTY_NAME(name) , name ( #name )
  31
  32 CommonIdentifiers::CommonIdentifiers()
  33     : nullIdentifier(nullCString)
  34     , underscoreProto("__proto__")
  35     KJS_COMMON_IDENTIFIERS_EACH_PROPERTY_NAME(INITIALIZE_PROPERTY_NAME)
  36 {
  37 }
  38
  39 CommonIdentifiers* CommonIdentifiers::shared()
  40 {
  41     static CommonIdentifiers* sharedInstance;
  42     if (!sharedInstance) {
  43         JSLock lock;
  44         sharedInstance = new CommonIdentifiers;
  45     }
  46     return sharedInstance;
  47 }
  48
  49 } // namespace KJS