75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
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/***
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Copyright (C) 2022 J Reece Wilson (a/k/a "Reece"). All rights reserved.
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File: auTryConstruct.hpp
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Date: 2022-3-25
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Author: Reece
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***/
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#pragma once
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template<typename T, typename ... Args>
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inline T AuTryConstruct(AuCtorCode_t &status, Args&& ... args)
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{
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if constexpr (AuIsConstructible<T, bool &, Args ...>::type::value)
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{
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status = AuCtorCode_t::Failed();
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return T(status, AuForward<T>(args)...);
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}
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else
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{
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try
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{
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status = AuCtorCode_t::Success();
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return T(AuForward<T>(args)...);
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}
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catch (...)
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{
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status = AuCtorCode_t::Failed();
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return T();
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}
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}
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}
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template<typename T, typename ... Args>
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inline AuPair<AuCtorCode_t, T> AuTryConstructPair(Args&& ... args)
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{
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AuCtorCode_t code;
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T object = AuTryConstruct<T, Args...>(AuReference(code), AuForward<Args>(args)...);
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return AuMakePair(AuMove(code), AuMove(object));
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}
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template<typename T, typename ... Args>
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inline T AuTryConstructWithDefault(AuCtorCode_t &status, T &&def, Args&& ... args)
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{
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if constexpr (AuIsConstructible<T, bool &, Args ...>::type::value)
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{
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status = AuCtorCode_t::Failed();
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T returnValue = T(status, AuForward<T>(args)...);
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if (!status)
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{
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return AuMove(def);
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}
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return returnValue;
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}
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else
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{
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try
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{
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status = AuCtorCode_t::Success();
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return T(AuForward<T>(args)...);
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}
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catch (...)
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{
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status = AuCtorCode_t::Failed();
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return AuMove(def);
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}
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}
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}
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template<typename T, typename ... Args>
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inline AuPair<AuCtorCode_t, T> AuTryConstructWithDefaultPair(T &&def, Args&& ... args)
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{
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AuCtorCode_t code;
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T object = AuTryConstructWithDefault<T, Args...>(AuReference(code), AuFoward(def), AuForward<Args>(args)...);
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return AuMakePair(AuMove(code), AuMove(object));
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}
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