99 lines
3.0 KiB
C++
99 lines
3.0 KiB
C++
#pragma once
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#include "CoreTypes.h"
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#include "TypeTraits/TypeTraits.h"
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NAMESPACE_REDCRAFT_BEGIN
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NAMESPACE_MODULE_BEGIN(Redcraft)
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NAMESPACE_MODULE_BEGIN(Utility)
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NAMESPACE_PRIVATE_BEGIN
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struct InvokeFunction
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{
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template <typename F, typename... Types>
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static auto Invoke(F&& Object, Types&&... Args)
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{
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return Forward<F>(Object)(Forward<Types>(Args)...);
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}
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};
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struct InvokeMemberFunction
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{
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template <typename F, typename ObjectType, typename... Types>
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static auto Invoke(F&& Func, ObjectType&& Object, Types&&... Args) ->
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decltype((Forward<ObjectType>(Object)->*Func)(Forward<Types>(Args)...))
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{
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return (Forward<ObjectType>(Object)->*Func)(Forward<Types>(Args)...);
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}
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template <typename F, typename ObjectType, typename... Types>
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static auto Invoke(F&& Func, ObjectType&& Object, Types&&... Args) ->
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decltype((Forward<ObjectType>(Object).*Func)(Forward<Types>(Args)...))
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{
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return (Forward<ObjectType>(Object).*Func)(Forward<Types>(Args)...);
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}
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};
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struct InvokeMemberObject
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{
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template <typename F, typename ObjectType>
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static auto Invoke(F&& Func, ObjectType&& Object) ->
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decltype(Forward<ObjectType>(Object)->*Func)
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{
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return (Forward<ObjectType>(Object)->*Func);
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}
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template <typename F, typename ObjectType>
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static auto Invoke(F&& Func, ObjectType&& Object) ->
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decltype(Forward<ObjectType>(Object).*Func)
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{
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return (Forward<ObjectType>(Object).*Func);
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}
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};
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template <typename F,
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typename T,
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typename Decayed = typename TDecay<F>::Type,
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bool IsMemberFunction = TIsMemberFunctionPointer<Decayed>::Value,
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bool IsMemberObject = TIsMemberObjectPointer<Decayed>::Value>
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struct InvokeMember;
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template <typename F, typename T, typename Decayed>
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struct InvokeMember<F, T, Decayed, true, false> : InvokeMemberFunction { };
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template <typename F, typename T, typename Decayed>
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struct InvokeMember<F, T, Decayed, false, true> : InvokeMemberObject { };
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template <typename F, typename T, typename Decayed>
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struct InvokeMember<F, T, Decayed, false, false> : InvokeFunction { };
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template <typename F, typename... Types>
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struct InvokeImpl;
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template <typename F>
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struct InvokeImpl<F> : InvokeFunction { };
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template <typename F, typename T, typename... Types>
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struct InvokeImpl<F, T, Types...> : InvokeMember<F, T> { };
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NAMESPACE_PRIVATE_END
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template <typename F, typename... Types> requires TIsInvocable<F, Types...>::Value
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constexpr auto Invoke(F&& Func, Types&&... Args)
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-> decltype(NAMESPACE_PRIVATE::InvokeImpl<F, Types...>::Invoke(Forward<F>(Func), Forward<Types>(Args)...))
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{
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return NAMESPACE_PRIVATE::InvokeImpl<F, Types...>::Invoke(Forward<F>(Func), Forward<Types>(Args)...);
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}
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template <typename R, typename F, typename... Types> requires TIsInvocableResult<R, F, Types...>::Value
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constexpr R InvokeResult(F&& Func, Types&&... Args)
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{
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if constexpr (TIsVoid<R>::Value) Invoke(Forward<F>(Func), Forward<Types>(Args)...);
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else return Invoke(Forward<F>(Func), Forward<Types>(Args)...);
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}
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NAMESPACE_MODULE_END(Utility)
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NAMESPACE_MODULE_END(Redcraft)
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NAMESPACE_REDCRAFT_END
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