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