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feat(templates): add Invoke function and corresponding peripheral tools

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This commit is contained in:
_Redstone_c_
2022-02-04 21:11:05 +08:00
parent b0c170f803
commit 63fdd34789
9 changed files with 219 additions and 16 deletions
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98
Redcraft.Utility/Source/Public/Templates/Invoke.h Normal file
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@ -0,0 +1,98 @@
#pragma once
#include "CoreTypes.h"
#include "TypeTraits/Miscellaneous.h"
NAMESPACE_REDCRAFT_BEGIN
NAMESPACE_MODULE_BEGIN(Redcraft)
NAMESPACE_MODULE_BEGIN(Utility)
NAMESPACE_PRIVATE_BEGIN
struct InvokeFunction
{
template <typename F, typename... Types>
static auto Invoke(F&& Object, Types&&... Args)
{
return Object(Forward<Types>(Args)...);
}
};
struct InvokeMemberFunction
{
template <typename F, typename ObjectType, typename... Types>
static auto Invoke(F&& Func, ObjectType&& Object, Types&&... Args) ->
decltype((Object->*Func)(Forward<Types>(Args)...))
{
return (Object->*Func)(Forward<Types>(Args)...);
}
template <typename F, typename ObjectType, typename... Types>
static auto Invoke(F&& Func, ObjectType&& Object, Types&&... Args) ->
decltype((Object.*Func)(Forward<Types>(Args)...))
{
return (Object.*Func)(Forward<Types>(Args)...);
}
};
struct InvokeMemberObject
{
template <typename F, typename ObjectType>
static auto Invoke(F&& Func, ObjectType&& Object) ->
decltype(Object->*Func)
{
return (Object->*Func);
}
template <typename F, typename ObjectType>
static auto Invoke(F&& Func, ObjectType&& Object) ->
decltype(Object.*Func)
{
return (Object.*Func);
}
};
template <typename F,
typename T,
typename Decayed = typename TDecay<F>::Type,
bool IsMemberFunction = TIsMemberFunctionPointer<Decayed>::Value,
bool IsMemberObject = TIsMemberObjectPointer<Decayed>::Value>
struct InvokeMember;
template <typename F, typename T, typename Decayed>
struct InvokeMember<F, T, Decayed, true, false> : InvokeMemberFunction { };
template <typename F, typename T, typename Decayed>
struct InvokeMember<F, T, Decayed, false, true> : InvokeMemberObject { };
template <typename F, typename T, typename Decayed>
struct InvokeMember<F, T, Decayed, false, false> : InvokeFunction { };
template <typename F, typename... Types>
struct InvokeImpl;
template <typename F>
struct InvokeImpl<F> : InvokeFunction { };
template <typename F, typename T, typename... Types>
struct InvokeImpl<F, T, Types...> : InvokeMember<F, T> { };
NAMESPACE_PRIVATE_END
template <typename F, typename... Types> requires TIsInvocable<F, Types...>::Value
constexpr auto Invoke(F&& Func, Types&&... Args)
{
return NAMESPACE_PRIVATE::InvokeImpl<F, Types...>::Invoke(Forward<F>(Func), Forward<Types>(Args)...);
}
template <typename R, typename F, typename... Types> requires TIsInvocableResult<R, F, Types...>::Value
constexpr R InvokeResult(F&& Func, Types&&... Args)
{
if constexpr (TIsVoid<R>::Value) Invoke(Forward<F>(Func), Forward<Types>(Args)...);
else return Invoke(Forward<F>(Func), Forward<Types>(Args)...);
}
NAMESPACE_MODULE_END(Utility)
NAMESPACE_MODULE_END(Redcraft)
NAMESPACE_REDCRAFT_END