File indexing completed on 2024-05-12 15:43:35

 /*
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  *     its contributors may be used to endorse or promote products derived
  *     from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef SymbolTable_h
 #define SymbolTable_h
 
 #include "ustring.h"
 #include <wtf/AlwaysInline.h>
 
 namespace KJS
 {
 
 struct IdentifierRepHash : PtrHash<RefPtr<UString::Rep> > {
     static unsigned hash(const RefPtr<UString::Rep> &key)
     {
         return key->computedHash();
     }
     static unsigned hash(UString::Rep *key)
     {
         return key->computedHash();
     }
 };
 
 static ALWAYS_INLINE size_t missingSymbolMarker()
 {
     return std::numeric_limits<size_t>::max();
 }
 
 struct SymbolTableIndexHashTraits : HashTraits<size_t>  {
     static const bool emptyValueIsZero = false;
     static size_t emptyValue()
     {
         return missingSymbolMarker();
     }
 };
 
 typedef HashMap<RefPtr<UString::Rep>, size_t, IdentifierRepHash, HashTraits<RefPtr<UString::Rep> >, SymbolTableIndexHashTraits> SymbolTable;
 } // namespace KJS
 
 #endif // SymbolTable_h