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perf(templates): add requires on the content of TOptional and TVariant

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This commit is contained in:
_Redstone_c_ 2022-03-21 18:40:30 +08:00
parent e03cfa956c
commit e0aab7e0b9
2 changed files with 8 additions and 21 deletions
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2
Redcraft.Utility/Source/Public/Templates/Optional.h
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@ -9,7 +9,7 @@ NAMESPACE_REDCRAFT_BEGIN
NAMESPACE_MODULE_BEGIN(Redcraft) NAMESPACE_MODULE_BEGIN(Redcraft)
NAMESPACE_MODULE_BEGIN(Utility) NAMESPACE_MODULE_BEGIN(Utility)
template <typename OptionalType> template <typename OptionalType> requires (TIsObject<OptionalType>::Value && !TIsArray<OptionalType>::Value&& TIsDestructible<OptionalType>::Value)
struct TOptional struct TOptional
{ {
public: public:

23
Redcraft.Utility/Source/Public/Templates/Variant.h
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@ -85,7 +85,7 @@ template <typename T>
constexpr void VariantCopyConstruct(void* Target, const void* Source) constexpr void VariantCopyConstruct(void* Target, const void* Source)
{ {
if constexpr (!TIsCopyConstructible<T>::Value || TIsConst<T>::Value) check_no_entry(); if constexpr (!TIsCopyConstructible<T>::Value || TIsConst<T>::Value) check_no_entry();
new(reinterpret_cast<T*>(Target)) T(*reinterpret_cast<const T*>(Source)); else new(reinterpret_cast<T*>(Target)) T(*reinterpret_cast<const T*>(Source));
} }
using FVariantCopyConstructFunc = void(*)(void*, const void*); using FVariantCopyConstructFunc = void(*)(void*, const void*);
@ -94,7 +94,7 @@ template <typename T>
constexpr void VariantMoveConstruct(void* Target, void* Source) constexpr void VariantMoveConstruct(void* Target, void* Source)
{ {
if constexpr (!TIsMoveConstructible<T>::Value || TIsConst<T>::Value) check_no_entry(); if constexpr (!TIsMoveConstructible<T>::Value || TIsConst<T>::Value) check_no_entry();
new(reinterpret_cast<T*>(Target)) T(MoveTemp(*reinterpret_cast<T*>(Source))); else new(reinterpret_cast<T*>(Target)) T(MoveTemp(*reinterpret_cast<T*>(Source)));
} }
using FVariantMoveConstructFunc = void(*)(void*, void*); using FVariantMoveConstructFunc = void(*)(void*, void*);
@ -103,7 +103,7 @@ template <typename T>
constexpr void VariantCopyAssign(void* Target, const void* Source) constexpr void VariantCopyAssign(void* Target, const void* Source)
{ {
if constexpr (!TIsCopyAssignable<T>::Value || TIsConst<T>::Value) check_no_entry(); if constexpr (!TIsCopyAssignable<T>::Value || TIsConst<T>::Value) check_no_entry();
*reinterpret_cast<T*>(Target) = *reinterpret_cast<const T*>(Source); else *reinterpret_cast<T*>(Target) = *reinterpret_cast<const T*>(Source);
} }
using FVariantCopyAssignFunc = void(*)(void*, const void*); using FVariantCopyAssignFunc = void(*)(void*, const void*);
@ -112,7 +112,7 @@ template <typename T>
constexpr void VariantMoveAssign(void* Target, void* Source) constexpr void VariantMoveAssign(void* Target, void* Source)
{ {
if constexpr (!TIsMoveAssignable<T>::Value || TIsConst<T>::Value) check_no_entry(); if constexpr (!TIsMoveAssignable<T>::Value || TIsConst<T>::Value) check_no_entry();
*reinterpret_cast<T*>(Target) = MoveTemp(*reinterpret_cast<T*>(Source)); else *reinterpret_cast<T*>(Target) = MoveTemp(*reinterpret_cast<T*>(Source));
} }
using FVariantMoveAssignFunc = void(*)(void*, void*); using FVariantMoveAssignFunc = void(*)(void*, void*);
@ -149,14 +149,6 @@ struct TVariantHelper
static constexpr FVariantInequalityOperatorFunc InequalityOperatorFuncs[] = { VariantInequalityOperator<Types>... }; static constexpr FVariantInequalityOperatorFunc InequalityOperatorFuncs[] = { VariantInequalityOperator<Types>... };
}; };
template <typename... Types> constexpr FVariantDestroyFunc TVariantHelper<Types...>::DestroyFuncs[];
template <typename... Types> constexpr FVariantCopyConstructFunc TVariantHelper<Types...>::CopyConstructFuncs[];
template <typename... Types> constexpr FVariantMoveConstructFunc TVariantHelper<Types...>::MoveConstructFuncs[];
template <typename... Types> constexpr FVariantCopyAssignFunc TVariantHelper<Types...>::CopyAssignFuncs[];
template <typename... Types> constexpr FVariantMoveAssignFunc TVariantHelper<Types...>::MoveAssignFuncs[];
template <typename... Types> constexpr FVariantEqualityOperatorFunc TVariantHelper<Types...>::EqualityOperatorFuncs[];
template <typename... Types> constexpr FVariantInequalityOperatorFunc TVariantHelper<Types...>::InequalityOperatorFuncs[];
template <typename R, typename F, typename T> template <typename R, typename F, typename T>
constexpr R VariantVisitLValue(F&& Func, void* Arg) constexpr R VariantVisitLValue(F&& Func, void* Arg)
{ {
@ -210,14 +202,9 @@ struct TVariantVisitHelper
static constexpr FVariantVisitConstRValueFunc<R, F> VisitConstRValueFuncs[] = { VariantVisitConstRValue<R, F, Types>... }; static constexpr FVariantVisitConstRValueFunc<R, F> VisitConstRValueFuncs[] = { VariantVisitConstRValue<R, F, Types>... };
}; };
template <typename R, typename F, typename... Types> constexpr FVariantVisitLValueFunc<R, F> TVariantVisitHelper<R, F, Types...>::VisitLValueFuncs[];
template <typename R, typename F, typename... Types> constexpr FVariantVisitRValueFunc<R, F> TVariantVisitHelper<R, F, Types...>::VisitRValueFuncs[];
template <typename R, typename F, typename... Types> constexpr FVariantVisitConstLValueFunc<R, F> TVariantVisitHelper<R, F, Types...>::VisitConstLValueFuncs[];
template <typename R, typename F, typename... Types> constexpr FVariantVisitConstRValueFunc<R, F> TVariantVisitHelper<R, F, Types...>::VisitConstRValueFuncs[];
NAMESPACE_PRIVATE_END NAMESPACE_PRIVATE_END
template <typename... Types> template <typename... Types> requires (true && ... && (TIsObject<Types>::Value && !TIsArray<Types>::Value && TIsDestructible<Types>::Value))
struct TVariant struct TVariant
{ {
struct FAlternativeSize : TConstant<size_t, sizeof...(Types)> { }; struct FAlternativeSize : TConstant<size_t, sizeof...(Types)> { };