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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #ifndef MutableDictionary_h
     27 #define MutableDictionary_h
     28 
     29 #include "ImmutableDictionary.h"
     30 
     31 namespace WebKit {
     32 
     33 // MutableDictionary - A mutable dictionary type suitable for vending to an API.
     34 
     35 class MutableDictionary : public ImmutableDictionary {
     36 public:
     37     static PassRefPtr<MutableDictionary> create()
     38     {
     39         return adoptRef(new MutableDictionary);
     40     }
     41 
     42     ~MutableDictionary();
     43 
     44     bool add(const String& key, APIObject*);
     45     bool set(const String& key, APIObject*);
     46     void remove(const String& key);
     47 
     48     virtual bool isMutable() { return true; }
     49 
     50 private:
     51     MutableDictionary();
     52 };
     53 
     54 } // namespace WebKit
     55 
     56 #endif // MutableDictionary_h
     57