101 lines
2.9 KiB
C++
101 lines
2.9 KiB
C++
#pragma once
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#include "CoreTypes.h"
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#include "Templates/Utility.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... Ts>
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static auto Invoke(F&& Object, Ts&&... Args)
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-> decltype(Forward<F>(Object)(Forward<Ts>(Args)...))
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{
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return Forward<F>(Object)(Forward<Ts>(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... Ts>
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static auto Invoke(F&& Func, ObjectType&& Object, Ts&&... Args)
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-> decltype((Forward<ObjectType>(Object)->*Func)(Forward<Ts>(Args)...))
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{
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return (Forward<ObjectType>(Object)->*Func)(Forward<Ts>(Args)...);
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}
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template <typename F, typename ObjectType, typename... Ts>
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static auto Invoke(F&& Func, ObjectType&& Object, Ts&&... Args)
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-> decltype((Forward<ObjectType>(Object).*Func)(Forward<Ts>(Args)...))
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{
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return (Forward<ObjectType>(Object).*Func)(Forward<Ts>(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 = TDecay<F>,
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bool IsMemberFunction = CMemberFunctionPointer<Decayed>,
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bool IsMemberObject = CMemberObjectPointer<Decayed>>
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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... Ts>
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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... Ts>
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struct InvokeImpl<F, T, Ts...> : InvokeMember<F, T> { };
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NAMESPACE_PRIVATE_END
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template <typename F, typename... Ts> requires (CInvocable<F, Ts...>)
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FORCEINLINE constexpr auto Invoke(F&& Func, Ts&&... Args)
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-> decltype(NAMESPACE_PRIVATE::InvokeImpl<F, Ts...>::Invoke(Forward<F>(Func), Forward<Ts>(Args)...))
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{
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return NAMESPACE_PRIVATE::InvokeImpl<F, Ts...>::Invoke(Forward<F>(Func), Forward<Ts>(Args)...);
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}
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template <typename R, typename F, typename... Ts> requires (CInvocableResult<R, F, Ts...>)
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FORCEINLINE constexpr R InvokeResult(F&& Func, Ts&&... Args)
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{
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if constexpr (CVoid<R>) Invoke(Forward<F>(Func), Forward<Ts>(Args)...);
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else return Invoke(Forward<F>(Func), Forward<Ts>(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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