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refactor(typetraits): replaces template class type traits with concepts at all

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This commit is contained in:
_Redstone_c_
2022-05-20 23:35:36 +08:00
parent 6a5a101af4
commit ee46d84897
36 changed files with 292 additions and 554 deletions
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36
Redcraft.Utility/Source/Public/Templates/ReferenceWrapper.h
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@ -99,9 +99,15 @@ constexpr TReferenceWrapper<const T> Ref(TReferenceWrapper<T> InValue)
return Ref(InValue.Get());
}
NAMESPACE_PRIVATE_BEGIN
template <typename T> struct TIsTReferenceWrapper : FFalse { };
template <typename T> struct TIsTReferenceWrapper<TReferenceWrapper<T>> : FTrue { };
NAMESPACE_PRIVATE_END
template <typename T> concept CTReferenceWrapper = NAMESPACE_PRIVATE::TIsTReferenceWrapper<T>::Value;
template <typename T> struct TUnwrapReference { using Type = T; };
template <typename T> struct TUnwrapReference<TReferenceWrapper<T>> { using Type = T&; };
@ -115,19 +121,19 @@ private:
using OptionalType = TReferenceWrapper<ReferencedType>;
template <typename T>
struct TAllowUnwrapping : TBoolConstant<!(
CConstructible<OptionalType, TOptional<T>& >
|| CConstructible<OptionalType, const TOptional<T>& >
|| CConstructible<OptionalType, TOptional<T>&&>
|| CConstructible<OptionalType, const TOptional<T>&&>
struct TAllowUnwrapping : TBoolConstant < !(
CConstructibleFrom<OptionalType, TOptional<T>& >
|| CConstructibleFrom<OptionalType, const TOptional<T>& >
|| CConstructibleFrom<OptionalType, TOptional<T>&&>
|| CConstructibleFrom<OptionalType, const TOptional<T>&&>
|| CConvertibleTo< TOptional<T>&, OptionalType>
|| CConvertibleTo<const TOptional<T>&, OptionalType>
|| CConvertibleTo< TOptional<T>&&, OptionalType>
|| CConvertibleTo<const TOptional<T>&&, OptionalType>
|| CAssignable<OptionalType&, TOptional<T>& >
|| CAssignable<OptionalType&, const TOptional<T>& >
|| CAssignable<OptionalType&, TOptional<T>&&>
|| CAssignable<OptionalType&, const TOptional<T>&&>
|| CAssignableFrom<OptionalType&, TOptional<T>& >
|| CAssignableFrom<OptionalType&, const TOptional<T>& >
|| CAssignableFrom<OptionalType&, TOptional<T>&&>
|| CAssignableFrom<OptionalType&, const TOptional<T>&&>
)> { };
public:
@ -138,12 +144,12 @@ public:
constexpr TOptional(FInvalid) : TOptional() { }
template <typename... Types> requires CConstructible<OptionalType, Types...>
template <typename... Types> requires CConstructibleFrom<OptionalType, Types...>
constexpr explicit TOptional(FInPlace, Types&&... Args)
: Reference(Forward<Types>(Args)...)
{ }
template <typename T = OptionalType> requires CConstructible<OptionalType, T&&>
template <typename T = OptionalType> requires CConstructibleFrom<OptionalType, T&&>
&& (!CSameAs<typename TRemoveCVRef<T>::Type, FInPlace>) && (!CSameAs<typename TRemoveCVRef<T>::Type, TOptional>)
constexpr explicit (!CConvertibleTo<T&&, OptionalType>) TOptional(T&& InValue)
: TOptional(InPlace, Forward<T>(InValue))
@ -152,7 +158,7 @@ public:
TOptional(const TOptional& InValue) = default;
TOptional(TOptional&& InValue) = default;
template <typename T = OptionalType> requires CConstructible<OptionalType, const T&> && TAllowUnwrapping<T>::Value
template <typename T = OptionalType> requires CConstructibleFrom<OptionalType, const T&> && TAllowUnwrapping<T>::Value
constexpr explicit (!CConvertibleTo<const T&, OptionalType>) TOptional(const TOptional<T>& InValue)
: Reference(InValue.Reference)
{ }
@ -162,21 +168,21 @@ public:
TOptional& operator=(const TOptional& InValue) = default;
TOptional& operator=(TOptional&& InValue) = default;
template <typename T = OptionalType> requires CConstructible<OptionalType, const T&> && CAssignable<OptionalType&, const T&> && TAllowUnwrapping<T>::Value
template <typename T = OptionalType> requires CConstructibleFrom<OptionalType, const T&> && CAssignableFrom<OptionalType&, const T&> && TAllowUnwrapping<T>::Value
constexpr TOptional& operator=(const TOptional<T>& InValue)
{
Reference = InValue.Reference;
return *this;
}
template <typename T = OptionalType> requires CConstructible<OptionalType, T&&> && CAssignable<OptionalType&, T&&>
template <typename T = OptionalType> requires CConstructibleFrom<OptionalType, T&&> && CAssignableFrom<OptionalType&, T&&>
constexpr TOptional& operator=(T&& InValue)
{
Reference = InValue;
return *this;
}
template <typename... ArgTypes> requires CConstructible<OptionalType, ArgTypes...>
template <typename... ArgTypes> requires CConstructibleFrom<OptionalType, ArgTypes...>
constexpr OptionalType& Emplace(ArgTypes&&... Args)
{
Reference = TReferenceWrapper<ReferencedType>(Forward<ArgTypes>(Args)...);