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413ab652c8
This was the last one! IPCCompiler no longer has any type-specific encoding/decoding logic! :^)
107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/BufferStream.h>
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#include <AK/Forward.h>
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#include <AK/NumericLimits.h>
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#include <AK/String.h>
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#include <LibIPC/Forward.h>
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#include <LibIPC/Message.h>
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namespace IPC {
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template<typename T>
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inline bool decode(Decoder&, T&)
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{
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ASSERT_NOT_REACHED();
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return false;
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}
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class Decoder {
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public:
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explicit Decoder(BufferStream& stream)
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: m_stream(stream)
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{
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}
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bool decode(bool&);
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bool decode(u8&);
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bool decode(u16&);
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bool decode(u32&);
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bool decode(u64&);
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bool decode(i8&);
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bool decode(i16&);
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bool decode(i32&);
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bool decode(i64&);
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bool decode(float&);
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bool decode(String&);
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bool decode(Dictionary&);
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template<typename T>
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bool decode(T& value)
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{
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return IPC::decode(*this, value);
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}
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template<typename T>
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bool decode(Vector<T>& vector)
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{
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u64 size;
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if (!decode(size) || size > NumericLimits<i32>::max())
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return false;
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for (size_t i = 0; i < size; ++i) {
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T value;
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if (!decode(value))
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return false;
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vector.append(move(value));
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}
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return true;
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}
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template<typename T>
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bool decode(Optional<T>& optional)
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{
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bool has_value;
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if (!decode(has_value))
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return false;
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if (!has_value) {
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optional = {};
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return true;
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}
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T value;
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if (!decode(value))
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return false;
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optional = move(value);
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return true;
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}
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private:
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BufferStream& m_stream;
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};
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}
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