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ffc4a56b9f
Fixes #6846 Differential Revision: https://code.wildfiregames.com/D5185 This was SVN commit r27965.
69 lines
2.5 KiB
C++
69 lines
2.5 KiB
C++
/* Copyright (C) 2020 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_SERIALIZETEMPLATES
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#define INCLUDED_SERIALIZETEMPLATES
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/**
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* @file
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* Helper templates definitions for serializing/deserializing common objects.
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*
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* Usage:
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* You need to (partially) specialize SerializeHelper for your type.
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* The optional SFINAE argument can be used to provide generic specializations
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* via std::enable_if_t<T>.
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* If both paths are common, you can templatize operator()'s first argument,
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* but you will need to templatize the passed value to account for different value categories.
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*
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* See SerializedTypes.h for some examples.
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*
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*/
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#include "simulation2/serialization/ISerializer.h"
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#include "simulation2/serialization/IDeserializer.h"
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// SFINAE is just there to allow SFINAE-partial specializations.
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template <typename T, typename SFINAE = void>
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struct SerializeHelper
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{
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template<typename... Args>
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void operator()(ISerializer& serialize, const char* name, T value, Args&&...);
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template<typename... Args>
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void operator()(IDeserializer& serialize, const char* name, T& value, Args&&...);
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};
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// This is the variant for an explicitly specified T (where what you pass is another type).
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template <typename T, typename S, typename... Args>
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void Serializer(S& serialize, const char* name, Args&&... args)
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{
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SerializeHelper<std::remove_const_t<std::remove_reference_t<T>>>()(serialize, name, std::forward<Args>(args)...);
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}
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// This lets T be deduced from the argument.
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template <typename T, typename S, typename... Args>
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void Serializer(S& serialize, const char* name, T&& value, Args&&... args)
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{
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SerializeHelper<std::remove_const_t<std::remove_reference_t<T>>>()(serialize, name, std::forward<T>(value), std::forward<Args>(args)...);
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}
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namespace Serialize
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{
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template<typename S, class T>
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using qualify = std::conditional_t<std::is_same_v<S, ISerializer&>, const T&, T&>;
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}
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#endif // INCLUDED_SERIALIZETEMPLATES
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