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      1 /*
      2  * Copyright (C) 2010 Google 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  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 #include "IDBKey.h"
     28 
     29 #if ENABLE(INDEXED_DATABASE)
     30 
     31 namespace WebCore {
     32 
     33 IDBKey::IDBKey()
     34     : m_type(NullType)
     35 {
     36 }
     37 
     38 IDBKey::~IDBKey()
     39 {
     40 }
     41 
     42 bool IDBKey::isLessThan(const IDBKey* other) const
     43 {
     44     ASSERT(other);
     45     if (other->m_type < m_type)
     46         return true;
     47     if (other->m_type > m_type)
     48         return false;
     49 
     50     switch (m_type) {
     51     case StringType:
     52         return codePointCompare(other->m_string, m_string) > 0;
     53     case DateType:
     54         return other->m_date > m_date;
     55     case NumberType:
     56         return other->m_number > m_number;
     57     case NullType:
     58         return true;
     59     }
     60 
     61     ASSERT_NOT_REACHED();
     62     return false;
     63 }
     64 
     65 bool IDBKey::isEqual(const IDBKey* other) const
     66 {
     67     if (!other || other->m_type != m_type)
     68         return false;
     69 
     70     switch (m_type) {
     71     case StringType:
     72         return other->m_string == m_string;
     73     case DateType:
     74         return other->m_date == m_date;
     75     case NumberType:
     76         return other->m_number == m_number;
     77     case NullType:
     78         return true;
     79     }
     80 
     81     ASSERT_NOT_REACHED();
     82     return false;
     83 }
     84 
     85 } // namespace WebCore
     86 
     87 #endif
     88