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refactor(templates): fix the behavior of the TFunction::Target function

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This commit is contained in:
_Redstone_c_ 2022-04-08 16:52:17 +08:00
parent ceccf9d722
commit a086f90f25
1 changed files with 15 additions and 10 deletions
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25
Redcraft.Utility/Source/Public/Templates/Function.h
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@ -267,7 +267,7 @@ public:
{ {
using DecayedFunctorType = typename TDecay<T>::Type; using DecayedFunctorType = typename TDecay<T>::Type;
EmplaceImpl<DecayedFunctorType>(Forward<ArgTypes>(Args)...); EmplaceImpl<DecayedFunctorType>(Forward<ArgTypes>(Args)...);
return *reinterpret_cast<typename TDecay<T>::Type*>(Target()); return Target<DecayedFunctorType>();
} }
FORCEINLINE ResultType operator()(Types... Args) requires (Specifiers == EFunctionSpecifiers::None ) { return CallImpl(Forward<Types>(Args)...); } FORCEINLINE ResultType operator()(Types... Args) requires (Specifiers == EFunctionSpecifiers::None ) { return CallImpl(Forward<Types>(Args)...); }
@ -280,10 +280,15 @@ public:
constexpr bool IsValid() const { return Call != nullptr; } constexpr bool IsValid() const { return Call != nullptr; }
constexpr explicit operator bool() const { return Call != nullptr; } constexpr explicit operator bool() const { return Call != nullptr; }
FORCEINLINE void* GetData() { if constexpr (FunctionType != EFunctionType::Reference) return Storage.GetData(); else return Storage; }
FORCEINLINE const void* GetData() const { if constexpr (FunctionType != EFunctionType::Reference) return Storage.GetData(); else return Storage; }
FORCEINLINE const FTypeInfo& TargetType() const requires (FunctionType != EFunctionType::Reference) { return IsValid() ? Storage.GetTypeInfo() : Typeid(void); }; FORCEINLINE const FTypeInfo& TargetType() const requires (FunctionType != EFunctionType::Reference) { return IsValid() ? Storage.GetTypeInfo() : Typeid(void); };
FORCEINLINE void* Target() { if constexpr (FunctionType != EFunctionType::Reference) return Storage.GetData(); else return Storage; } 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>(); }
FORCEINLINE const void* Target() const { if constexpr (FunctionType != EFunctionType::Reference) return Storage.GetData(); else return Storage; } 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>(); }
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>(); }
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>(); }
constexpr void Reset() requires (FunctionType != EFunctionType::Reference) { Call = nullptr; } constexpr void Reset() requires (FunctionType != EFunctionType::Reference) { Call = nullptr; }
@ -306,7 +311,7 @@ private:
FORCEINLINE ResultType CallImpl(Types&&... Args) const FORCEINLINE ResultType CallImpl(Types&&... Args) const
{ {
checkf(IsValid(), TEXT("Attempting to call an unbound TFunction!")); checkf(IsValid(), TEXT("Attempting to call an unbound TFunction!"));
return Call(const_cast<TFunctionImpl&>(*this).Target(), Forward<Types>(Args)...); return Call(const_cast<TFunctionImpl&>(*this).GetData(), Forward<Types>(Args)...);
} }
FORCEINLINE void AssignImpl(const TFunctionImpl& InValue) FORCEINLINE void AssignImpl(const TFunctionImpl& InValue)
@ -338,37 +343,37 @@ struct TFunctionSelect;
template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType> template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
struct TFunctionSelect<R(Types...) , InlineSize, InlineAlignment, FunctionType> struct TFunctionSelect<R(Types...) , InlineSize, InlineAlignment, FunctionType>
{ {
using Type = NAMESPACE_PRIVATE::TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::None, FunctionType>; using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::None, FunctionType>;
}; };
template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType> template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
struct TFunctionSelect<R(Types...) & , InlineSize, InlineAlignment, FunctionType> struct TFunctionSelect<R(Types...) & , InlineSize, InlineAlignment, FunctionType>
{ {
using Type = NAMESPACE_PRIVATE::TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::LValue, FunctionType>; using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::LValue, FunctionType>;
}; };
template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType> template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
struct TFunctionSelect<R(Types...) && , InlineSize, InlineAlignment, FunctionType> struct TFunctionSelect<R(Types...) && , InlineSize, InlineAlignment, FunctionType>
{ {
using Type = NAMESPACE_PRIVATE::TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::RValue, FunctionType>; using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::RValue, FunctionType>;
}; };
template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType> template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
struct TFunctionSelect<R(Types...) const , InlineSize, InlineAlignment, FunctionType> struct TFunctionSelect<R(Types...) const , InlineSize, InlineAlignment, FunctionType>
{ {
using Type = NAMESPACE_PRIVATE::TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::Const, FunctionType>; using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::Const, FunctionType>;
}; };
template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType> template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
struct TFunctionSelect<R(Types...) const& , InlineSize, InlineAlignment, FunctionType> struct TFunctionSelect<R(Types...) const& , InlineSize, InlineAlignment, FunctionType>
{ {
using Type = NAMESPACE_PRIVATE::TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::ConstLValue, FunctionType>; using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::ConstLValue, FunctionType>;
}; };
template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType> template <typename R, typename... Types, size_t InlineSize, size_t InlineAlignment, EFunctionType FunctionType>
struct TFunctionSelect<R(Types...) const&&, InlineSize, InlineAlignment, FunctionType> struct TFunctionSelect<R(Types...) const&&, InlineSize, InlineAlignment, FunctionType>
{ {
using Type = NAMESPACE_PRIVATE::TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::ConstRValue, FunctionType>; using Type = TFunctionImpl<R(Types...), InlineSize, InlineAlignment, EFunctionSpecifiers::ConstRValue, FunctionType>;
}; };
NAMESPACE_PRIVATE_END NAMESPACE_PRIVATE_END