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feat(templates): add type traits to determine if it is TAny etc

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This commit is contained in:
_Redstone_c_
2022-03-31 17:36:48 +08:00
parent 54ab72224f
commit 5f4b0d8c22
6 changed files with 33 additions and 24 deletions
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17
Redcraft.Utility/Source/Public/Templates/Any.h
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@ -119,12 +119,12 @@ struct TAnyRTTIHelper
};
};
inline constexpr size_t ANY_DEFAULT_INLINE_SIZE = 64 - sizeof(FTypeInfo) - sizeof(const FAnyRTTI*);
inline constexpr size_t ANY_DEFAULT_INLINE_ALIGNMENT = Memory::MINIMUM_ALIGNMENT;
NAMESPACE_PRIVATE_END
template <size_t InlineSize, size_t InlineAlignment = NAMESPACE_PRIVATE::ANY_DEFAULT_INLINE_ALIGNMENT>
inline constexpr size_t ANY_DEFAULT_INLINE_SIZE = 64 - sizeof(FTypeInfo) - sizeof(const NAMESPACE_PRIVATE::FAnyRTTI*);
inline constexpr size_t ANY_DEFAULT_INLINE_ALIGNMENT = Memory::MINIMUM_ALIGNMENT;
template <size_t InlineSize, size_t InlineAlignment = ANY_DEFAULT_INLINE_ALIGNMENT>
struct TAny
{
template <typename T>
@ -186,7 +186,7 @@ struct TAny
}
}
template <typename T> requires (!TIsSame<typename TDecay<T>::Type, TAny>::Value) && (!TIsInPlaceTypeSpecialization<typename TDecay<T>::Type>::Value)
template <typename T> requires (!TIsSame<typename TDecay<T>::Type, TAny>::Value) && (!TIsTInPlaceType<typename TDecay<T>::Type>::Value)
&& TIsObject<typename TDecay<T>::Type>::Value && (!TIsArray<typename TDecay<T>::Type>::Value) && TIsDestructible<typename TDecay<T>::Type>::Value
&& TIsConstructible<typename TDecay<T>::Type, T&&>::Value
TAny(T&& InValue) : TAny(InPlaceType<typename TDecay<T>::Type>, Forward<T>(InValue))
@ -255,7 +255,7 @@ struct TAny
return *this;
}
template <typename T> requires (!TIsSame<typename TDecay<T>::Type, TAny>::Value) && (!TIsInPlaceTypeSpecialization<typename TDecay<T>::Type>::Value)
template <typename T> requires (!TIsSame<typename TDecay<T>::Type, TAny>::Value) && (!TIsTInPlaceType<typename TDecay<T>::Type>::Value)
&& TIsObject<typename TDecay<T>::Type>::Value && (!TIsArray<typename TDecay<T>::Type>::Value) && TIsDestructible<typename TDecay<T>::Type>::Value
&& TIsConstructible<typename TDecay<T>::Type, T&&>::Value
TAny& operator=(T&& InValue)
@ -451,7 +451,10 @@ constexpr void Swap(TAny<InlineSize, InlineAlignment>& A, TAny<InlineSize, Inlin
B = MoveTemp(Temp);
}
using FAny = TAny<NAMESPACE_PRIVATE::ANY_DEFAULT_INLINE_SIZE>;
template <typename T> struct TIsTAny : FFalse { };
template <size_t InlineSize, size_t InlineAlignment> struct TIsTAny<TAny<InlineSize, InlineAlignment>> : FTrue { };
using FAny = TAny<ANY_DEFAULT_INLINE_SIZE>;
static_assert(sizeof(FAny) == 64, "The byte size of FAny is unexpected");