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 APINumber_h 27#define APINumber_h 28 29#include "APIObject.h" 30#include "ArgumentDecoder.h" 31#include "ArgumentEncoder.h" 32#include <wtf/PassRefPtr.h> 33 34namespace API { 35 36template<typename NumberType, API::Object::Type APIObjectType> 37class Number : public ObjectImpl<APIObjectType> { 38public: 39 static PassRefPtr<Number> create(NumberType value) 40 { 41 return adoptRef(new Number(value)); 42 } 43 44 NumberType value() const { return m_value; } 45 46 void encode(IPC::ArgumentEncoder& encoder) const 47 { 48 encoder << m_value; 49 } 50 51 static bool decode(IPC::ArgumentDecoder& decoder, RefPtr<Object>& result) 52 { 53 NumberType value; 54 if (!decoder.decode(value)) 55 return false; 56 57 result = Number::create(value); 58 return true; 59 } 60 61private: 62 explicit Number(NumberType value) 63 : m_value(value) 64 { 65 } 66 67 const NumberType m_value; 68}; 69 70typedef Number<bool, API::Object::Type::Boolean> Boolean; 71typedef Number<double, API::Object::Type::Double> Double; 72typedef Number<uint64_t, API::Object::Type::UInt64> UInt64; 73 74} // namespace API 75 76#endif // APINumber_h 77