140 lines
3.1 KiB
C++
140 lines
3.1 KiB
C++
#pragma once
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#include "CoreTypes.h"
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#include "TypeTraits/CompositeType.h"
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#include "TypeTraits/Miscellaneous.h"
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#include "TypeTraits/SupportedOperations.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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template <typename T>
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FORCEINLINE constexpr const T& AsConst(T& Ref)
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{
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return Ref;
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}
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template <typename T>
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void AsConst(const T&& Ref) = delete;
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template <typename T>
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FORCEINLINE constexpr TRemoveReference<T>&& MoveTemp(T&& Obj)
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{
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using CastType = TRemoveReference<T>;
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return static_cast<CastType&&>(Obj);
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}
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template <typename T>
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FORCEINLINE constexpr T CopyTemp(T& Obj)
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{
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return const_cast<const T&>(Obj);
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}
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template <typename T>
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FORCEINLINE constexpr T CopyTemp(const T& Obj)
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{
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return Obj;
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}
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template <typename T>
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FORCEINLINE constexpr T&& CopyTemp(T&& Obj)
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{
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return MoveTemp(Obj);
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}
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template <typename T>
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FORCEINLINE constexpr T&& Forward(TRemoveReference<T>& Obj)
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{
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return static_cast<T&&>(Obj);
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}
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template <typename T>
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FORCEINLINE constexpr T&& Forward(TRemoveReference<T>&& Obj)
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{
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return static_cast<T&&>(Obj);
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}
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template <typename T> requires (requires(T& A, T& B) { A.Swap(B); }
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|| (CMoveConstructible<T> && CMoveAssignable<T>))
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FORCEINLINE constexpr void Swap(T& A, T& B)
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{
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if constexpr (requires(T& A, T& B) { A.Swap(B); })
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{
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A.Swap(B);
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}
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else
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{
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T Temp = MoveTemp(A);
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A = MoveTemp(B);
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B = MoveTemp(Temp);
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}
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}
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template <typename T, typename U = T> requires (CMoveConstructible<T> && CAssignableFrom<T&, U>)
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FORCEINLINE constexpr T Exchange(T& A, U&& B)
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{
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T Temp = MoveTemp(A);
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A = Forward<U>(B);
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return Temp;
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}
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template <typename T>
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TAddRValueReference<T> DeclVal();
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template <typename T> requires (CObject<T>)
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FORCEINLINE constexpr T* AddressOf(T& Object)
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{
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return reinterpret_cast<T*>(&const_cast<char&>(reinterpret_cast<const volatile char&>(Object)));
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}
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template <typename T> requires (!CObject<T>)
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FORCEINLINE constexpr T* AddressOf(T& Object)
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{
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return &Object;
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}
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struct FIgnore
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{
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template <typename T>
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FORCEINLINE constexpr void operator=(T&&) const { }
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};
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inline constexpr FIgnore Ignore;
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// This macro is used in place of using type aliases, see Atomic.h, etc
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#define STRONG_INHERIT(...) /* BaseClass */ \
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/* struct DerivedClass : */ public __VA_ARGS__ \
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{ \
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private: \
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\
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using BaseClassTypedef = __VA_ARGS__; \
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\
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public: \
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\
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using BaseClassTypedef::BaseClassTypedef; \
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using BaseClassTypedef::operator=; \
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\
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}
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// TOverloaded Usage Example
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//
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// Visit(TOverloaded {
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// [](auto A) { ... },
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// [](double A) { ... },
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// [](const FString& A) { ... },
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// }, Target);
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//
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template <typename... Ts>
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struct TOverloaded : Ts...
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{
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using Ts::operator()...;
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};
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template <typename... Ts>
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TOverloaded(Ts...) -> TOverloaded<Ts...>;
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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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