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#ifndef IDBKeyPath_h 27#define IDBKeyPath_h 28 29#if ENABLE(INDEXED_DATABASE) 30 31#include <wtf/Vector.h> 32#include <wtf/text/WTFString.h> 33 34namespace WebCore { 35 36class KeyedDecoder; 37class KeyedEncoder; 38 39enum IDBKeyPathParseError { 40 IDBKeyPathParseErrorNone, 41 IDBKeyPathParseErrorStart, 42 IDBKeyPathParseErrorIdentifier, 43 IDBKeyPathParseErrorDot, 44}; 45 46void IDBParseKeyPath(const String&, Vector<String>&, IDBKeyPathParseError&); 47 48class IDBKeyPath { 49public: 50 IDBKeyPath() : m_type(NullType) { } 51 explicit IDBKeyPath(const String&); 52 explicit IDBKeyPath(const Vector<String>& array); 53 54 enum Type { 55 NullType = 0, 56 StringType, 57 ArrayType 58 }; 59 60 Type type() const { return m_type; } 61 62 const Vector<String>& array() const 63 { 64 ASSERT(m_type == ArrayType); 65 return m_array; 66 } 67 68 const String& string() const 69 { 70 ASSERT(m_type == StringType); 71 return m_string; 72 } 73 74 bool isNull() const { return m_type == NullType; } 75 bool isValid() const; 76 bool operator==(const IDBKeyPath& other) const; 77 78 IDBKeyPath isolatedCopy() const; 79 80 void encode(KeyedEncoder&) const; 81 static bool decode(KeyedDecoder&, IDBKeyPath&); 82 83private: 84 Type m_type; 85 String m_string; 86 Vector<String> m_array; 87}; 88 89} // namespace WebCore 90 91#endif 92 93#endif // IDBKeyPath_h 94