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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 #include "config.h"
     27 #include "ImmutableDictionary.h"
     28 
     29 #include "ImmutableArray.h"
     30 #include "WebString.h"
     31 
     32 namespace WebKit {
     33 
     34 ImmutableDictionary::ImmutableDictionary()
     35 {
     36 }
     37 
     38 ImmutableDictionary::ImmutableDictionary(MapType& map)
     39 {
     40     m_map.swap(map);
     41 }
     42 
     43 ImmutableDictionary::~ImmutableDictionary()
     44 {
     45 }
     46 
     47 PassRefPtr<ImmutableArray> ImmutableDictionary::keys() const
     48 {
     49     if (m_map.isEmpty())
     50         return ImmutableArray::create();
     51 
     52     Vector<RefPtr<APIObject> > vector;
     53     vector.reserveInitialCapacity(m_map.size());
     54 
     55     MapType::const_iterator::Keys it = m_map.begin().keys();
     56     MapType::const_iterator::Keys end = m_map.end().keys();
     57     for (; it != end; ++it)
     58         vector.uncheckedAppend(WebString::create(*it));
     59 
     60     return ImmutableArray::adopt(vector);
     61 }
     62 
     63 } // namespace WebKit
     64