479 lines
23 KiB
C++
479 lines
23 KiB
C++
#pragma once
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#include "CoreTypes.h"
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#include "Templates/Any.h"
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#include "Templates/Tuple.h"
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#include "Templates/Invoke.h"
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#include "Memory/Alignment.h"
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#include "Templates/Utility.h"
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#include "Templates/TypeHash.h"
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#include "TypeTraits/TypeTraits.h"
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#include "Miscellaneous/TypeInfo.h"
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#include "Concepts/BooleanTestable.h"
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#include "Miscellaneous/AssertionMacros.h"
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// NOTE: Disable alignment limit warning
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#pragma warning(disable : 4359)
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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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enum class EFunctionType
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{
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Reference,
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Object,
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Unique,
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};
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enum class EFunctionSpecifiers
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{
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None,
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LValue,
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RValue,
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Const,
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ConstLValue,
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ConstRValue,
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};
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template <typename F, size_t InlineSize, size_t InlineAlignment, EFunctionSpecifiers Specifiers, EFunctionType FunctionType> requires (Memory::IsValidAlignment(InlineAlignment))
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struct TFunctionImpl;
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template <typename T> struct TIsTFunctionImpl : FFalse { };
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template <typename F, size_t I, size_t J, EFunctionSpecifiers S, EFunctionType E> struct TIsTFunctionImpl<TFunctionImpl<F, I, J, S, E>> : FTrue { };
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template <typename T> struct TIsTFunctionRef : FFalse { };
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template <typename F, size_t I, size_t J, EFunctionSpecifiers S> struct TIsTFunctionRef<TFunctionImpl<F, I, J, S, EFunctionType::Reference>> : FTrue { };
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template <typename T> struct TIsTFunction : FFalse { };
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template <typename F, size_t I, size_t J, EFunctionSpecifiers S> struct TIsTFunction<TFunctionImpl<F, I, J, S, EFunctionType::Object>> : FTrue { };
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template <typename T> struct TIsTUniqueFunction : FFalse { };
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template <typename F, size_t I, size_t J, EFunctionSpecifiers S> struct TIsTUniqueFunction<TFunctionImpl<F, I, J, S, EFunctionType::Unique>> : FTrue { };
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struct FFunctionIsBound
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{
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template <typename T>
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static constexpr bool F(const T& Func)
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{
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if constexpr (TIsPointer<T>::Value || TIsMemberPointer<T>::Value || TIsTFunctionImpl<T>::Value)
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{
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return !!Func;
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}
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else
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{
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return true;
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}
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}
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};
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template <EFunctionSpecifiers Specifiers, typename R, typename F, typename... Types>
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struct TIsInvocableResultWithSpecifiers : FFalse { };
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template <typename R, typename F, typename... Types>
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struct TIsInvocableResultWithSpecifiers<EFunctionSpecifiers::None, R, F, Types...>
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: TBoolConstant<TIsInvocableResult<R, F, Types...>::Value && TIsInvocableResult<R, F&, Types...>::Value>
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{ };
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template <typename R, typename F, typename... Types>
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struct TIsInvocableResultWithSpecifiers<EFunctionSpecifiers::LValue, R, F, Types...> : TIsInvocableResult<R, F&, Types...> { };
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template <typename R, typename F, typename... Types>
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struct TIsInvocableResultWithSpecifiers<EFunctionSpecifiers::RValue, R, F, Types...> : TIsInvocableResult<R, F, Types...> { };
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template <typename R, typename F, typename... Types>
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struct TIsInvocableResultWithSpecifiers<EFunctionSpecifiers::Const, R, F, Types...>
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: TBoolConstant<TIsInvocableResult<R, const F, Types...>::Value && TIsInvocableResult<R, const F&, Types...>::Value>
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{ };
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template <typename R, typename F, typename... Types>
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struct TIsInvocableResultWithSpecifiers<EFunctionSpecifiers::ConstLValue, R, F, Types...> : TIsInvocableResult<R, const F&, Types...> { };
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template <typename R, typename F, typename... Types>
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struct TIsInvocableResultWithSpecifiers<EFunctionSpecifiers::ConstRValue, R, F, Types...> : TIsInvocableResult<R, const F, Types...> { };
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template <typename T, EFunctionSpecifiers Specifiers> struct TFunctionCallConst;
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template <typename T> struct TFunctionCallConst<T, EFunctionSpecifiers::None> { using Type = T; };
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template <typename T> struct TFunctionCallConst<T, EFunctionSpecifiers::LValue> { using Type = T; };
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template <typename T> struct TFunctionCallConst<T, EFunctionSpecifiers::RValue> { using Type = T; };
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template <typename T> struct TFunctionCallConst<T, EFunctionSpecifiers::Const> { using Type = const T; };
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template <typename T> struct TFunctionCallConst<T, EFunctionSpecifiers::ConstLValue> { using Type = const T; };
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template <typename T> struct TFunctionCallConst<T, EFunctionSpecifiers::ConstRValue> { using Type = const T; };
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template <typename T, EFunctionSpecifiers Specifiers> struct TFunctionCallConstRef;
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template <typename T> struct TFunctionCallConstRef<T, EFunctionSpecifiers::None> { using Type = T& ; };
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template <typename T> struct TFunctionCallConstRef<T, EFunctionSpecifiers::LValue> { using Type = T& ; };
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template <typename T> struct TFunctionCallConstRef<T, EFunctionSpecifiers::RValue> { using Type = T&&; };
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template <typename T> struct TFunctionCallConstRef<T, EFunctionSpecifiers::Const> { using Type = const T& ; };
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template <typename T> struct TFunctionCallConstRef<T, EFunctionSpecifiers::ConstLValue> { using Type = const T& ; };
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template <typename T> struct TFunctionCallConstRef<T, EFunctionSpecifiers::ConstRValue> { using Type = const T&&; };
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template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionSpecifiers Specifiers, EFunctionType FunctionType>
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struct alignas(InlineAlignment) TFunctionImpl<R(Types...), InlineSize, InlineAlignment, Specifiers, FunctionType>
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{
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public:
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using ResultType = R;
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using ArgumentType = TTuple<Types...>;
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constexpr TFunctionImpl(nullptr_t = nullptr) requires (FunctionType != EFunctionType::Reference) : Callable(nullptr) { }
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TFunctionImpl(const TFunctionImpl& InValue) requires (FunctionType != EFunctionType::Unique)
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: Callable(InValue.Callable), Storage(InValue.Storage)
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{ }
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TFunctionImpl(TFunctionImpl&& InValue)
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: Callable(InValue.Callable), Storage(MoveTemp(InValue.Storage))
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{ if constexpr (FunctionType != EFunctionType::Reference) InValue.Reset(); }
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template <typename T> requires (!TIsTFunctionImpl<typename TDecay<T>::Type>::Value) && (!TIsTInPlaceType<typename TDecay<T>::Type>::Value)
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&& TIsInvocableResultWithSpecifiers<Specifiers, ResultType, typename TDecay<T>::Type, Types...>::Value
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&& (FunctionType == EFunctionType::Reference || TIsConstructible<typename TDecay<T>::Type, T&&>::Value)
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&& ((FunctionType == EFunctionType::Object && TIsCopyConstructible<typename TDecay<T>::Type>::Value)
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|| (FunctionType == EFunctionType::Unique && TIsMoveConstructible<typename TDecay<T>::Type>::Value)
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|| FunctionType == EFunctionType::Reference)
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FORCEINLINE TFunctionImpl(T&& InValue)
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{
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using DecayedType = typename TDecay<T>::Type;
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if constexpr (FunctionType == EFunctionType::Reference)
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{
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checkf(FFunctionIsBound::F(InValue), TEXT("Cannot bind a null/unbound callable to a TFunctionRef"));
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}
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if (!FFunctionIsBound::F(InValue)) Callable = nullptr;
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else EmplaceImpl<DecayedType>(Forward<T>(InValue));
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}
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template <typename T, typename... ArgTypes> requires (FunctionType != EFunctionType::Reference)
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&& TIsInvocableResultWithSpecifiers<Specifiers, ResultType, typename TDecay<T>::Type, Types...>::Value && TIsConstructible<typename TDecay<T>::Type, ArgTypes...>::Value
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&& ((FunctionType == EFunctionType::Object && TIsCopyConstructible<typename TDecay<T>::Type>::Value)
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|| (FunctionType == EFunctionType::Unique && TIsMoveConstructible<typename TDecay<T>::Type>::Value))
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FORCEINLINE TFunctionImpl(TInPlaceType<T>, ArgTypes&&... Args)
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{
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using DecayedType = typename TDecay<T>::Type;
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EmplaceImpl<DecayedType>(Forward<ArgTypes>(Args)...);
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}
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// Construct TFunctionRef from TFunction or TFunctionUnique
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template <size_t OtherInlineSize, size_t OtherInlineAlignment, EFunctionType OtherFunctionType>
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requires (FunctionType == EFunctionType::Reference) && (OtherFunctionType != EFunctionType::Reference) && (TIsSame<typename TFunctionCallConst<void, Specifiers>::Type, void>::Value)
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FORCEINLINE TFunctionImpl(TFunctionImpl<R(Types...), OtherInlineSize, OtherInlineAlignment, Specifiers, OtherFunctionType>& InValue)
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{
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checkf(FFunctionIsBound::F(InValue), TEXT("Cannot bind a null/unbound callable to a TFunctionRef"));
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EmplaceImpl<TFunctionImpl<R(Types...), OtherInlineSize, OtherInlineAlignment, Specifiers, OtherFunctionType>>(InValue);
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}
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// Construct TFunctionRef from TFunction or TFunctionUnique
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template <size_t OtherInlineSize, size_t OtherInlineAlignment, EFunctionType OtherFunctionType>
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requires (FunctionType == EFunctionType::Reference) && (OtherFunctionType != EFunctionType::Reference) && (TIsSame<typename TFunctionCallConst<void, Specifiers>::Type, const void>::Value)
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FORCEINLINE TFunctionImpl(const TFunctionImpl<R(Types...), OtherInlineSize, OtherInlineAlignment, Specifiers, OtherFunctionType>& InValue)
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{
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checkf(FFunctionIsBound::F(InValue), TEXT("Cannot bind a null/unbound callable to a TFunctionRef"));
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EmplaceImpl<TFunctionImpl<R(Types...), OtherInlineSize, OtherInlineAlignment, Specifiers, OtherFunctionType>>(InValue);
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}
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FORCEINLINE TFunctionImpl(const TFunctionImpl<R(Types...), InlineSize, InlineAlignment, Specifiers, EFunctionType::Object>& InValue) requires (FunctionType == EFunctionType::Unique)
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: Callable((*reinterpret_cast<const TFunctionImpl*>(&InValue)).Callable), Storage((*reinterpret_cast<const TFunctionImpl*>(&InValue)).Storage)
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{ }
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FORCEINLINE TFunctionImpl(TFunctionImpl<R(Types...), InlineSize, InlineAlignment, Specifiers, EFunctionType::Object>&& InValue) requires (FunctionType == EFunctionType::Unique)
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: Callable((*reinterpret_cast<TFunctionImpl*>(&InValue)).Callable), Storage(MoveTemp((*reinterpret_cast<TFunctionImpl*>(&InValue)).Storage))
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{ InValue.Reset(); }
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~TFunctionImpl() = default;
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FORCEINLINE TFunctionImpl& operator=(const TFunctionImpl& InValue) requires (FunctionType == EFunctionType::Object)
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{
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AssignImpl(InValue);
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return *this;
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}
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FORCEINLINE TFunctionImpl& operator=(TFunctionImpl&& InValue) requires (FunctionType != EFunctionType::Reference)
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{
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if (&InValue == this) return *this;
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AssignImpl(MoveTemp(InValue));
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return *this;
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}
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FORCEINLINE TFunctionImpl& operator=(const TFunctionImpl<R(Types...), InlineSize, InlineAlignment, Specifiers, EFunctionType::Object>& InValue) requires (FunctionType == EFunctionType::Unique)
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{
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AssignImpl(*reinterpret_cast<const TFunctionImpl*>(&InValue));
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return *this;
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}
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FORCEINLINE TFunctionImpl& operator=(TFunctionImpl<R(Types...), InlineSize, InlineAlignment, Specifiers, EFunctionType::Object>&& InValue) requires (FunctionType == EFunctionType::Unique)
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{
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AssignImpl(MoveTemp(*reinterpret_cast<TFunctionImpl*>(&InValue)));
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return *this;
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}
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constexpr TFunctionImpl& operator=(nullptr_t) requires (FunctionType != EFunctionType::Reference) { Reset(); return *this; }
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template <typename T> requires (FunctionType != EFunctionType::Reference) && (!TIsTFunctionImpl<typename TDecay<T>::Type>::Value)
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&& TIsInvocableResultWithSpecifiers<Specifiers, ResultType, typename TDecay<T>::Type, Types...>::Value
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&& TIsConstructible<typename TDecay<T>::Type, T&&>::Value
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&& ((FunctionType == EFunctionType::Object && TIsCopyConstructible<typename TDecay<T>::Type>::Value)
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|| (FunctionType == EFunctionType::Unique && TIsMoveConstructible<typename TDecay<T>::Type>::Value))
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FORCEINLINE TFunctionImpl& operator=(T&& InValue)
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{
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using DecayedType = typename TDecay<T>::Type;
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if (!FFunctionIsBound::F(InValue)) Reset();
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else EmplaceImpl<DecayedType>(Forward<T>(InValue));
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return *this;
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}
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template <typename T, typename... ArgTypes> requires (FunctionType != EFunctionType::Reference)
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&& TIsInvocableResultWithSpecifiers<Specifiers, ResultType, typename TDecay<T>::Type, Types...>::Value
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&& TIsConstructible<typename TDecay<T>::Type, ArgTypes...>::Value
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&& ((FunctionType == EFunctionType::Object && TIsCopyConstructible<typename TDecay<T>::Type>::Value)
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|| (FunctionType == EFunctionType::Unique && TIsMoveConstructible<typename TDecay<T>::Type>::Value))
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FORCEINLINE typename TDecay<T>::Type& Emplace(ArgTypes&&... Args)
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{
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using DecayedType = typename TDecay<T>::Type;
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EmplaceImpl<DecayedType>(Forward<ArgTypes>(Args)...);
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return Target<DecayedType>();
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}
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FORCEINLINE ResultType operator()(Types... Args) requires (Specifiers == EFunctionSpecifiers::None ) { return CallImpl(Forward<Types>(Args)...); }
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FORCEINLINE ResultType operator()(Types... Args) & requires (Specifiers == EFunctionSpecifiers::LValue ) { return CallImpl(Forward<Types>(Args)...); }
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FORCEINLINE ResultType operator()(Types... Args) && requires (Specifiers == EFunctionSpecifiers::RValue ) { return CallImpl(Forward<Types>(Args)...); }
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FORCEINLINE ResultType operator()(Types... Args) const requires (Specifiers == EFunctionSpecifiers::Const ) { return CallImpl(Forward<Types>(Args)...); }
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FORCEINLINE ResultType operator()(Types... Args) const& requires (Specifiers == EFunctionSpecifiers::ConstLValue) { return CallImpl(Forward<Types>(Args)...); }
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FORCEINLINE ResultType operator()(Types... Args) const&& requires (Specifiers == EFunctionSpecifiers::ConstRValue) { return CallImpl(Forward<Types>(Args)...); }
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constexpr bool IsValid() const { return Callable != nullptr; }
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constexpr explicit operator bool() const { return Callable != nullptr; }
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FORCEINLINE const FTypeInfo& TargetType() const requires (FunctionType != EFunctionType::Reference) { return IsValid() ? Storage.GetTypeInfo() : Typeid(void); };
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template <typename T> FORCEINLINE T& Target() & requires (FunctionType != EFunctionType::Reference) && TIsSame<T, typename TDecay<T>::Type>::Value && TIsObject<typename TDecay<T>::Type>::Value && (!TIsArray<typename TDecay<T>::Type>::Value) && TIsDestructible<typename TDecay<T>::Type>::Value { return static_cast< StorageType& >(Storage).template GetValue<T>(); }
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template <typename T> FORCEINLINE T&& Target() && requires (FunctionType != EFunctionType::Reference) && TIsSame<T, typename TDecay<T>::Type>::Value && TIsObject<typename TDecay<T>::Type>::Value && (!TIsArray<typename TDecay<T>::Type>::Value) && TIsDestructible<typename TDecay<T>::Type>::Value { return static_cast< StorageType&&>(Storage).template GetValue<T>(); }
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template <typename T> FORCEINLINE const T& Target() const& requires (FunctionType != EFunctionType::Reference) && TIsSame<T, typename TDecay<T>::Type>::Value && TIsObject<typename TDecay<T>::Type>::Value && (!TIsArray<typename TDecay<T>::Type>::Value) && TIsDestructible<typename TDecay<T>::Type>::Value { return static_cast<const StorageType& >(Storage).template GetValue<T>(); }
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template <typename T> FORCEINLINE const T&& Target() const&& requires (FunctionType != EFunctionType::Reference) && TIsSame<T, typename TDecay<T>::Type>::Value && TIsObject<typename TDecay<T>::Type>::Value && (!TIsArray<typename TDecay<T>::Type>::Value) && TIsDestructible<typename TDecay<T>::Type>::Value { return static_cast<const StorageType&&>(Storage).template GetValue<T>(); }
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constexpr void Reset() requires (FunctionType != EFunctionType::Reference) { Callable = nullptr; }
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constexpr void Swap(TFunctionImpl& InValue) requires (FunctionType != EFunctionType::Reference)
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{
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if (!IsValid() && !InValue.IsValid()) return;
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if (IsValid() && !InValue.IsValid())
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{
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InValue = MoveTemp(*this);
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Reset();
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return;
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}
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if (InValue.IsValid() && !IsValid())
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{
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*this = MoveTemp(InValue);
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InValue.Reset();
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return;
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}
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NAMESPACE_REDCRAFT::Swap(Callable, InValue.Callable);
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NAMESPACE_REDCRAFT::Swap(Storage, InValue.Storage);
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}
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private:
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using StorageType = typename TConditional<FunctionType == EFunctionType::Reference, typename TFunctionCallConst<void, Specifiers>::Type*, TAny<InlineSize, 1>>::Type;
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using StorageRef = typename TConditional<FunctionType == EFunctionType::Reference, typename TFunctionCallConst<void, Specifiers>::Type*, typename TFunctionCallConstRef<StorageType, Specifiers>::Type&>::Type;
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using CallFunc = ResultType(*)(StorageRef, Types&&...);
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StorageType Storage;
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CallFunc Callable;
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template <typename DecayedType, typename... ArgTypes>
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FORCEINLINE void EmplaceImpl(ArgTypes&&... Args)
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{
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using CallableType = typename TFunctionCallConst<DecayedType, Specifiers>::Type;
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if constexpr (FunctionType == EFunctionType::Reference) Storage = ((reinterpret_cast<StorageType>(&Args)), ...);
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else Storage.template Emplace<DecayedType>(Forward<ArgTypes>(Args)...);
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Callable = [](StorageRef Storage, Types&&... Args) -> ResultType
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{
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const auto GetFunc = [&Storage]() -> decltype(auto)
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{
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if constexpr (FunctionType == EFunctionType::Reference) return *reinterpret_cast<CallableType*>(Storage);
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else return Storage.template GetValue<DecayedType>();
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};
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return InvokeResult<R>(Forward<typename TFunctionCallConstRef<CallableType, Specifiers>::Type>(GetFunc()), Forward<Types>(Args)...);
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};
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}
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FORCEINLINE ResultType CallImpl(Types&&... Args)
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{
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checkf(IsValid(), TEXT("Attempting to call an unbound TFunction!"));
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return Callable(Storage, Forward<Types>(Args)...);
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}
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FORCEINLINE ResultType CallImpl(Types&&... Args) const
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{
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checkf(IsValid(), TEXT("Attempting to call an unbound TFunction!"));
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return Callable(Storage, Forward<Types>(Args)...);
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}
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FORCEINLINE void AssignImpl(const TFunctionImpl& InValue)
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{
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if (InValue.IsValid())
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{
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Callable = InValue.Callable;
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Storage = InValue.Storage;
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}
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else Reset();
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}
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FORCEINLINE void AssignImpl(TFunctionImpl&& InValue)
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{
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if (InValue.IsValid())
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{
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Callable = InValue.Callable;
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Storage = MoveTemp(InValue.Storage);
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InValue.Reset();
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}
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else Reset();
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}
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};
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template <typename F, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
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struct TFunctionSelect;
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template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
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struct TFunctionSelect<R(Types...) , InlineSize, InlineAlignment, FunctionType>
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{
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using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::None, FunctionType>;
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};
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template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
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struct TFunctionSelect<R(Types...) & , InlineSize, InlineAlignment, FunctionType>
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{
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using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::LValue, FunctionType>;
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};
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template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
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struct TFunctionSelect<R(Types...) && , InlineSize, InlineAlignment, FunctionType>
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{
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using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::RValue, FunctionType>;
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};
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template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
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struct TFunctionSelect<R(Types...) const , InlineSize, InlineAlignment, FunctionType>
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{
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using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::Const, FunctionType>;
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};
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template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
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struct TFunctionSelect<R(Types...) const& , InlineSize, InlineAlignment, FunctionType>
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{
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using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::ConstLValue, FunctionType>;
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};
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template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
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struct TFunctionSelect<R(Types...) const&&, InlineSize, InlineAlignment, FunctionType>
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{
|
|
using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::ConstRValue, FunctionType>;
|
|
};
|
|
|
|
NAMESPACE_PRIVATE_END
|
|
|
|
inline constexpr size_t FUNCTION_DEFAULT_INLINE_SIZE = ANY_DEFAULT_INLINE_SIZE - sizeof(uintptr);
|
|
inline constexpr size_t FUNCTION_DEFAULT_INLINE_ALIGNMENT = ANY_DEFAULT_INLINE_ALIGNMENT;
|
|
|
|
template <typename F>
|
|
using TFunctionRef = typename NAMESPACE_PRIVATE::TFunctionSelect<F, FUNCTION_DEFAULT_INLINE_SIZE, FUNCTION_DEFAULT_INLINE_ALIGNMENT, NAMESPACE_PRIVATE::EFunctionType::Reference>::Type;
|
|
|
|
template <typename F, size_t InlineSize = FUNCTION_DEFAULT_INLINE_SIZE, size_t InlineAlignment = FUNCTION_DEFAULT_INLINE_ALIGNMENT>
|
|
using TFunction = typename NAMESPACE_PRIVATE::TFunctionSelect<F, InlineSize, InlineAlignment, NAMESPACE_PRIVATE::EFunctionType::Object>::Type;
|
|
|
|
template <typename F, size_t InlineSize = FUNCTION_DEFAULT_INLINE_SIZE, size_t InlineAlignment = FUNCTION_DEFAULT_INLINE_ALIGNMENT>
|
|
using TUniqueFunction = typename NAMESPACE_PRIVATE::TFunctionSelect<F, InlineSize, InlineAlignment, NAMESPACE_PRIVATE::EFunctionType::Unique>::Type;
|
|
|
|
template <typename T> struct TIsTFunctionRef : NAMESPACE_PRIVATE::TIsTFunctionRef<T> { };
|
|
template <typename T> struct TIsTFunction : NAMESPACE_PRIVATE::TIsTFunction<T> { };
|
|
template <typename T> struct TIsTUniqueFunction : NAMESPACE_PRIVATE::TIsTUniqueFunction<T> { };
|
|
|
|
template <typename F>
|
|
constexpr bool operator==(const TFunctionRef<F>& LHS, nullptr_t)
|
|
{
|
|
return !LHS;
|
|
}
|
|
|
|
template <typename F>
|
|
constexpr bool operator==(const TFunction<F>& LHS, nullptr_t)
|
|
{
|
|
return !LHS;
|
|
}
|
|
|
|
template <typename F>
|
|
constexpr bool operator==(const TUniqueFunction<F>& LHS, nullptr_t)
|
|
{
|
|
return !LHS;
|
|
}
|
|
|
|
static_assert(sizeof(TFunction<void()>) == 64, "The byte size of TFunction is unexpected");
|
|
static_assert(sizeof(TUniqueFunction<void()>) == 64, "The byte size of TUniqueFunction is unexpected");
|
|
|
|
NAMESPACE_PRIVATE_BEGIN
|
|
|
|
template <typename F>
|
|
struct NotFunctionType
|
|
{
|
|
F Func;
|
|
|
|
NotFunctionType(const NotFunctionType&) = default;
|
|
NotFunctionType(NotFunctionType&&) = default;
|
|
|
|
template <typename InF>
|
|
constexpr NotFunctionType(InF&& InFunc) : Func(Forward<InF>(InFunc)) { }
|
|
|
|
template <typename... Types> requires TIsInvocable<F&, Types&&...>::Value
|
|
constexpr auto operator()(Types&&... Args) &
|
|
-> decltype(!Invoke(Func, Forward<Types>(Args)...))
|
|
{
|
|
return !Invoke(Func, Forward<Types>(Args)...);
|
|
}
|
|
|
|
template <typename... Types> requires TIsInvocable<F&&, Types&&...>::Value
|
|
constexpr auto operator()(Types&&... Args) &&
|
|
-> decltype(!Invoke(MoveTemp(Func), Forward<Types>(Args)...))
|
|
{
|
|
return !Invoke(MoveTemp(Func), Forward<Types>(Args)...);
|
|
}
|
|
|
|
template <typename... Types> requires TIsInvocable<const F&, Types&&...>::Value
|
|
constexpr auto operator()(Types&&... Args) const&
|
|
-> decltype(!Invoke(Func, Forward<Types>(Args)...))
|
|
{
|
|
return !Invoke(Func, Forward<Types>(Args)...);
|
|
}
|
|
|
|
template <typename... Types> requires TIsInvocable<const F&&, Types&&...>::Value
|
|
constexpr auto operator()(Types&&... Args) const&&
|
|
-> decltype(!Invoke(MoveTemp(Func), Forward<Types>(Args)...))
|
|
{
|
|
return !Invoke(MoveTemp(Func), Forward<Types>(Args)...);
|
|
}
|
|
};
|
|
|
|
NAMESPACE_PRIVATE_END
|
|
|
|
template <typename F>
|
|
constexpr NAMESPACE_PRIVATE::NotFunctionType<typename TDecay<F>::Type> NotFn(F&& Func)
|
|
{
|
|
return NAMESPACE_PRIVATE::NotFunctionType<typename TDecay<F>::Type>(Forward<F>(Func));
|
|
}
|
|
|
|
NAMESPACE_MODULE_END(Utility)
|
|
NAMESPACE_MODULE_END(Redcraft)
|
|
NAMESPACE_REDCRAFT_END
|