text: /**
   * Appcelerator Titanium License
   * This source code and all modifications done by Appcelerator
   * are licensed under the Apache Public License (version 2) and
   * are Copyright (c) 2009-2012 by Appcelerator, Inc.
   */
  
  /*
   * Copyright (C) 2008 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 AtomicStringHash_h
  #define AtomicStringHash_h
  
  #include <wtf/text/AtomicString.h>
  #include <wtf/HashTraits.h>
  
  namespace WTI {
  
      struct AtomicStringHash {
          static unsigned hash(const AtomicString& key)
          {
              return key.impl()->existingHash();
          }
  
          static bool equal(const AtomicString& a, const AtomicString& b)
          {
              return a == b;
          }
  
          static const bool safeToCompareToEmptyOrDeleted = false;
      };
  
      // AtomicStringHash is the default hash for AtomicString
      template<> struct HashTraits<WTI::AtomicString> : GenericHashTraits<WTI::AtomicString> {
          static const bool emptyValueIsZero = true;
          static void constructDeletedValue(WTI::AtomicString& slot) { new (&slot) WTI::AtomicString(HashTableDeletedValue); }
          static bool isDeletedValue(const WTI::AtomicString& slot) { return slot.isHashTableDeletedValue(); }
      };
  
  }
  
  using WTI::AtomicStringHash;
  
  #endif
  