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/*
* Copyright (C) 2010 Google 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.
*
* 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 IDBKeyPath_h
#define IDBKeyPath_h
#if ENABLE(INDEXED_DATABASE)
#include "IndexedDB.h"
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class KeyedDecoder;
class KeyedEncoder;
enum class IDBKeyPathParseError {
None,
Start,
Identifier,
Dot,
};
void IDBParseKeyPath(const String&, Vector<String>&, IDBKeyPathParseError&);
class IDBKeyPath {
public:
IDBKeyPath() { }
WEBCORE_EXPORT explicit IDBKeyPath(const String&);
WEBCORE_EXPORT explicit IDBKeyPath(const Vector<String>& array);
IndexedDB::KeyPathType type() const { return m_type; }
const Vector<String>& array() const
{
ASSERT(m_type == IndexedDB::KeyPathType::Array);
return m_array;
}
const String& string() const
{
ASSERT(m_type == IndexedDB::KeyPathType::String);
return m_string;
}
bool isNull() const { return m_type == IndexedDB::KeyPathType::Null; }
bool isValid() const;
bool operator==(const IDBKeyPath& other) const;
IDBKeyPath isolatedCopy() const;
template<class Encoder> void encode(Encoder&) const;
template<class Decoder> static bool decode(Decoder&, IDBKeyPath&);
WEBCORE_EXPORT void encode(KeyedEncoder&) const;
WEBCORE_EXPORT static bool decode(KeyedDecoder&, IDBKeyPath&);
private:
IndexedDB::KeyPathType m_type { IndexedDB::KeyPathType::Null };
String m_string;
Vector<String> m_array;
};
template<class Encoder>
void IDBKeyPath::encode(Encoder& encoder) const
{
encoder.encodeEnum(m_type);
switch (m_type) {
case IndexedDB::KeyPathType::Null:
break;
case IndexedDB::KeyPathType::String:
encoder << m_string;
break;
case IndexedDB::KeyPathType::Array:
encoder << m_array;
break;
default:
ASSERT_NOT_REACHED();
}
}
template<class Decoder>
bool IDBKeyPath::decode(Decoder& decoder, IDBKeyPath& keyPath)
{
IndexedDB::KeyPathType type;
if (!decoder.decodeEnum(type))
return false;
switch (type) {
case IndexedDB::KeyPathType::Null:
keyPath = IDBKeyPath();
return true;
case IndexedDB::KeyPathType::String: {
String string;
if (!decoder.decode(string))
return false;
keyPath = IDBKeyPath(string);
return true;
}
case IndexedDB::KeyPathType::Array: {
Vector<String> array;
if (!decoder.decode(array))
return false;
keyPath = IDBKeyPath(array);
return true;
}
default:
return true;
}
}
} // namespace WebCore
#endif
#endif // IDBKeyPath_h
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