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feat(miscellaneous): add type traits and memory operations support to FTypeInfo

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This commit is contained in:
_Redstone_c_ 2022-04-30 23:03:29 +08:00
parent c2c4a03974
commit 59d3a9eac2
1 changed files with 281 additions and 5 deletions
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286
Redcraft.Utility/Source/Public/Miscellaneous/TypeInfo.h
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@ -1,7 +1,12 @@
#pragma once #pragma once
#include "CoreTypes.h" #include "CoreTypes.h"
#include "Concepts/Concepts.h"
#include "Templates/Utility.h"
#include "Templates/TypeHash.h"
#include "Miscellaneous/Compare.h" #include "Miscellaneous/Compare.h"
#include "TypeTraits/TypeTraits.h"
#include "Memory/MemoryOperator.h"
#include <typeinfo> #include <typeinfo>
@ -9,6 +14,18 @@ NAMESPACE_REDCRAFT_BEGIN
NAMESPACE_MODULE_BEGIN(Redcraft) NAMESPACE_MODULE_BEGIN(Redcraft)
NAMESPACE_MODULE_BEGIN(Utility) NAMESPACE_MODULE_BEGIN(Utility)
struct FTypeInfo;
NAMESPACE_PRIVATE_BEGIN
struct FTypeInfoStatic
{
template <typename T>
static constexpr FTypeInfo Value = { InPlaceType<T> };
};
NAMESPACE_PRIVATE_END
struct FTypeInfo struct FTypeInfo
{ {
FTypeInfo() = delete; FTypeInfo() = delete;
@ -17,13 +34,267 @@ struct FTypeInfo
FTypeInfo& operator=(FTypeInfo&&) = delete; FTypeInfo& operator=(FTypeInfo&&) = delete;
FTypeInfo& operator=(const FTypeInfo&) = delete; FTypeInfo& operator=(const FTypeInfo&) = delete;
FORCEINLINE size_t GetTypeHash() const { return reinterpret_cast<const std::type_info*>(this)->hash_code(); } constexpr const std::type_info& GetNative() const { return Native; };
FORCEINLINE const char* GetName() const { return reinterpret_cast<const std::type_info*>(this)->name(); }
FORCEINLINE size_t GetTypeHash() const { return GetNative().hash_code(); }
FORCEINLINE const char* GetName() const { return GetNative().name(); }
constexpr size_t GetTypeSize() const { return TypeSize; }
constexpr size_t GetTypeAlignment() const { return TypeAlignment; }
constexpr bool IsZeroConstructible () const { return bIsZeroConstructible; }
constexpr bool IsBitwiseConstructible () const { return bIsBitwiseConstructible; }
constexpr bool IsBitwiseRelocatable () const { return bIsBitwiseRelocatable; }
constexpr bool IsBitwiseComparable () const { return bIsBitwiseComparable; }
constexpr bool IsArithmetic () const { return bIsArithmetic; }
constexpr bool IsFundamental () const { return bIsFundamental; }
constexpr bool IsObject () const { return bIsObject; }
constexpr bool IsScalar () const { return bIsScalar; }
constexpr bool IsCompound () const { return bIsCompound; }
constexpr bool IsMemberPointer () const { return bIsMemberPointer; }
constexpr bool IsVoid () const { return bIsVoid; }
constexpr bool IsNullPointer () const { return bIsNullPointer; }
constexpr bool IsIntegral () const { return bIsIntegral; }
constexpr bool IsFloatingPoint () const { return bIsFloatingPoint; }
constexpr bool IsArray () const { return bIsArray; }
constexpr bool IsPointer () const { return bIsPointer; }
constexpr bool IsMemberObjectPointer () const { return bIsMemberObjectPointer; }
constexpr bool IsMemberFunctionPointer () const { return bIsMemberFunctionPointer; }
constexpr bool IsEnum () const { return bIsEnum; }
constexpr bool IsUnion () const { return bIsUnion; }
constexpr bool IsClass () const { return bIsClass; }
constexpr bool IsFunction () const { return bIsFunction; }
constexpr bool IsDefaultConstructible () const { return bIsDefaultConstructible; }
constexpr bool IsCopyConstructible () const { return bIsCopyConstructible; }
constexpr bool IsMoveConstructible () const { return bIsMoveConstructible; }
constexpr bool IsCopyAssignable () const { return bIsCopyAssignable; }
constexpr bool IsMoveAssignable () const { return bIsMoveAssignable; }
constexpr bool IsDestructible () const { return bIsDestructible; }
constexpr bool IsTriviallyDefaultConstructible () const { return bIsTriviallyDefaultConstructible; }
constexpr bool IsTriviallyCopyConstructible () const { return bIsTriviallyCopyConstructible; }
constexpr bool IsTriviallyMoveConstructible () const { return bIsTriviallyMoveConstructible; }
constexpr bool IsTriviallyCopyAssignable () const { return bIsTriviallyCopyAssignable; }
constexpr bool IsTriviallyMoveAssignable () const { return bIsTriviallyMoveAssignable; }
constexpr bool IsTriviallyDestructible () const { return bIsTriviallyDestructible; }
constexpr bool HasVirtualDestructor () const { return bHasVirtualDestructor; }
constexpr bool IsTrivial () const { return bIsTrivial; }
constexpr bool IsTriviallyCopyable () const { return bIsTriviallyCopyable; }
constexpr bool IsStandardLayout () const { return bIsStandardLayout; }
constexpr bool HasUniqueObjectRepresentations () const { return bHasUniqueObjectRepresentations; }
constexpr bool IsEmpty () const { return bIsEmpty; }
constexpr bool IsPolymorphic () const { return bIsPolymorphic; }
constexpr bool IsAbstract () const { return bIsAbstract; }
constexpr bool IsFinal () const { return bIsFinal; }
constexpr bool IsAggregate () const { return bIsAggregate; }
constexpr bool IsSigned () const { return bIsSigned; }
constexpr bool IsUnsigned () const { return bIsUnsigned; }
constexpr bool IsBoundedArray () const { return bIsBoundedArray; }
constexpr bool IsUnboundedArray () const { return bIsUnboundedArray; }
constexpr bool IsScopedEnum () const { return bIsScopedEnum; }
constexpr bool IsEqualityComparable () const { return bIsEqualityComparable; }
constexpr bool IsTotallyOrdered () const { return bIsTotallyOrdered; }
constexpr bool IsThreeWayComparable () const { return bIsThreeWayComparable; }
constexpr bool IsHashable () const { return bIsHashable; }
constexpr bool IsSwappable () const { return bIsSwappable; }
FORCEINLINE void DefaultConstruct (void* Address ) const { return DefaultConstructImpl (Address ); }
FORCEINLINE void CopyConstruct (void* Destination, const void* Source) const { return CopyConstructImpl (Destination, Source); }
FORCEINLINE void MoveConstruct (void* Destination, void* Source) const { return MoveConstructImpl (Destination, Source); }
FORCEINLINE void RelocateConstruct (void* Destination, void* Source) const { return RelocateConstructImpl (Destination, Source); }
FORCEINLINE void CopyAssign (void* Destination, const void* Source) const { return CopyAssignImpl (Destination, Source); }
FORCEINLINE void MoveAssign (void* Destination, void* Source) const { return MoveAssignImpl (Destination, Source); }
FORCEINLINE void Destroy (void* Element ) const { return DestroyImpl (Element ); }
FORCEINLINE bool EqualityCompare (const void* LHS, const void* RHS) const { return EqualityCompareImpl (LHS, RHS); }
FORCEINLINE partial_ordering SynthThreeWayCompare (const void* LHS, const void* RHS) const { return SynthThreeWayCompareImpl (LHS, RHS); }
FORCEINLINE partial_ordering ThreeWayCompare (const void* LHS, const void* RHS) const { return ThreeWayCompareImpl (LHS, RHS); }
FORCEINLINE size_t HashItem (const void* A ) const { return HashItemImpl (A ); }
FORCEINLINE void SwapItem ( void* A, void* B ) const { return SwapItemImpl (A, B ); }
private: private:
friend FORCEINLINE bool operator==(const FTypeInfo& LHS, const FTypeInfo& RHS) { return &LHS != &RHS ? *reinterpret_cast<const std::type_info*>(&LHS) == *reinterpret_cast<const std::type_info*>(&RHS) : true; } const std::type_info& Native;
friend FORCEINLINE bool operator< (const FTypeInfo& LHS, const FTypeInfo& RHS) { return reinterpret_cast<const std::type_info*>(&LHS)->before(*reinterpret_cast<const std::type_info*>(&RHS)); }
const size_t TypeSize;
const size_t TypeAlignment;
const uint8 bIsZeroConstructible : 1;
const uint8 bIsBitwiseConstructible : 1;
const uint8 bIsBitwiseRelocatable : 1;
const uint8 bIsBitwiseComparable : 1;
const uint8 bIsArithmetic : 1;
const uint8 bIsFundamental : 1;
const uint8 bIsObject : 1;
const uint8 bIsScalar : 1;
const uint8 bIsCompound : 1;
const uint8 bIsMemberPointer : 1;
const uint8 bIsVoid : 1;
const uint8 bIsNullPointer : 1;
const uint8 bIsIntegral : 1;
const uint8 bIsFloatingPoint : 1;
const uint8 bIsArray : 1;
const uint8 bIsPointer : 1;
const uint8 bIsMemberObjectPointer : 1;
const uint8 bIsMemberFunctionPointer : 1;
const uint8 bIsEnum : 1;
const uint8 bIsUnion : 1;
const uint8 bIsClass : 1;
const uint8 bIsFunction : 1;
const uint8 bIsDefaultConstructible : 1;
const uint8 bIsCopyConstructible : 1;
const uint8 bIsMoveConstructible : 1;
const uint8 bIsCopyAssignable : 1;
const uint8 bIsMoveAssignable : 1;
const uint8 bIsDestructible : 1;
const uint8 bIsTriviallyDefaultConstructible : 1;
const uint8 bIsTriviallyCopyConstructible : 1;
const uint8 bIsTriviallyMoveConstructible : 1;
const uint8 bIsTriviallyCopyAssignable : 1;
const uint8 bIsTriviallyMoveAssignable : 1;
const uint8 bIsTriviallyDestructible : 1;
const uint8 bHasVirtualDestructor : 1;
const uint8 bIsTrivial : 1;
const uint8 bIsTriviallyCopyable : 1;
const uint8 bIsStandardLayout : 1;
const uint8 bHasUniqueObjectRepresentations : 1;
const uint8 bIsEmpty : 1;
const uint8 bIsPolymorphic : 1;
const uint8 bIsAbstract : 1;
const uint8 bIsFinal : 1;
const uint8 bIsAggregate : 1;
const uint8 bIsSigned : 1;
const uint8 bIsUnsigned : 1;
const uint8 bIsBoundedArray : 1;
const uint8 bIsUnboundedArray : 1;
const uint8 bIsScopedEnum : 1;
const uint8 bIsEqualityComparable : 1;
const uint8 bIsTotallyOrdered : 1;
const uint8 bIsThreeWayComparable : 1;
const uint8 bIsHashable : 1;
const uint8 bIsSwappable : 1;
using FDefaultConstruct = void(*)(void* );
using FCopyConstruct = void(*)(void*, const void*);
using FMoveConstruct = void(*)(void*, void*);
using FRelocateConstruct = void(*)(void*, void*);
using FCopyAssign = void(*)(void*, const void*);
using FMoveAssign = void(*)(void*, void*);
using FDestroy = void(*)(void* );
using FEqualityCompare = bool (*)(const void*, const void*);
using FSynthThreeWayCompare = partial_ordering (*)(const void*, const void*);
using FThreeWayCompare = partial_ordering (*)(const void*, const void*);
using FHashItem = size_t (*)(const void* );
using FSwapItem = void (*)( void*, void*);
const FDefaultConstruct DefaultConstructImpl;
const FCopyConstruct CopyConstructImpl;
const FMoveConstruct MoveConstructImpl;
const FRelocateConstruct RelocateConstructImpl;
const FCopyAssign CopyAssignImpl;
const FMoveAssign MoveAssignImpl;
const FDestroy DestroyImpl;
const FEqualityCompare EqualityCompareImpl;
const FSynthThreeWayCompare SynthThreeWayCompareImpl;
const FThreeWayCompare ThreeWayCompareImpl;
const FHashItem HashItemImpl;
const FSwapItem SwapItemImpl;
template <typename T>
constexpr FTypeInfo(TInPlaceType<T>) : Native(typeid(T))
, TypeSize (!TIsVoid<T>::Value ? sizeof (typename TConditional<TIsVoid<T>::Value, int, T>::Type) : INDEX_NONE)
, TypeAlignment (!TIsVoid<T>::Value ? alignof(typename TConditional<TIsVoid<T>::Value, int, T>::Type) : INDEX_NONE)
, bIsZeroConstructible (TIsZeroConstructible<T>::Value)
, bIsBitwiseConstructible (TIsBitwiseConstructible<T, T>::Value)
, bIsBitwiseRelocatable (TIsBitwiseRelocatable<T, T>::Value)
, bIsBitwiseComparable (TIsBitwiseComparable<T>::Value)
, bIsArithmetic (TIsArithmetic<T>::Value)
, bIsFundamental (TIsFundamental<T>::Value)
, bIsObject (TIsObject<T>::Value)
, bIsScalar (TIsScalar<T>::Value)
, bIsCompound (TIsCompound<T>::Value)
, bIsMemberPointer (TIsMemberPointer<T>::Value)
, bIsVoid (TIsVoid<T>::Value)
, bIsNullPointer (TIsNullPointer<T>::Value)
, bIsIntegral (TIsIntegral<T>::Value)
, bIsFloatingPoint (TIsFloatingPoint<T>::Value)
, bIsArray (TIsArray<T>::Value)
, bIsPointer (TIsPointer<T>::Value)
, bIsMemberObjectPointer (TIsMemberObjectPointer<T>::Value)
, bIsMemberFunctionPointer (TIsMemberFunctionPointer<T>::Value)
, bIsEnum (TIsEnum<T>::Value)
, bIsUnion (TIsUnion<T>::Value)
, bIsClass (TIsClass<T>::Value)
, bIsFunction (TIsFunction<T>::Value)
, bIsDefaultConstructible (TIsDefaultConstructible<T>::Value)
, bIsCopyConstructible (TIsCopyConstructible<T>::Value)
, bIsMoveConstructible (TIsMoveConstructible<T>::Value)
, bIsCopyAssignable (TIsCopyAssignable<T>::Value)
, bIsMoveAssignable (TIsMoveAssignable<T>::Value)
, bIsDestructible (TIsDestructible<T>::Value)
, bIsTriviallyDefaultConstructible (TIsTriviallyDefaultConstructible<T>::Value)
, bIsTriviallyCopyConstructible (TIsTriviallyCopyConstructible<T>::Value)
, bIsTriviallyMoveConstructible (TIsTriviallyMoveConstructible<T>::Value)
, bIsTriviallyCopyAssignable (TIsTriviallyCopyAssignable<T>::Value)
, bIsTriviallyMoveAssignable (TIsTriviallyMoveAssignable<T>::Value)
, bIsTriviallyDestructible (TIsTriviallyDestructible<T>::Value)
, bHasVirtualDestructor (THasVirtualDestructor<T>::Value)
, bIsTrivial (TIsTrivial<T>::Value)
, bIsTriviallyCopyable (TIsTriviallyCopyable<T>::Value)
, bIsStandardLayout (TIsStandardLayout<T>::Value)
, bHasUniqueObjectRepresentations (THasUniqueObjectRepresentations<T>::Value)
, bIsEmpty (TIsEmpty<T>::Value)
, bIsPolymorphic (TIsPolymorphic<T>::Value)
, bIsAbstract (TIsAbstract<T>::Value)
, bIsFinal (TIsFinal<T>::Value)
, bIsAggregate (TIsAggregate<T>::Value)
, bIsSigned (TIsSigned<T>::Value)
, bIsUnsigned (TIsUnsigned<T>::Value)
, bIsBoundedArray (TIsBoundedArray<T>::Value)
, bIsUnboundedArray (TIsUnboundedArray<T>::Value)
, bIsScopedEnum (TIsScopedEnum<T>::Value)
, bIsEqualityComparable (CEqualityComparable<T>)
, bIsTotallyOrdered (CTotallyOrdered<T>)
, bIsThreeWayComparable (CThreeWayComparable<T>)
, bIsHashable (CHashable<T>)
, bIsSwappable (CSwappable<T>)
, DefaultConstructImpl ([](void* A ) -> void { if constexpr (requires(T* A ) { Memory::DefaultConstruct (A ); }) Memory::DefaultConstruct (reinterpret_cast<T*>(A) ); else check_no_entry(); })
, CopyConstructImpl ([](void* A, const void* B) -> void { if constexpr (requires(T* A, const T* B) { Memory::CopyConstruct (A, B); }) Memory::CopyConstruct (reinterpret_cast<T*>(A), reinterpret_cast<const T*>(B)); else check_no_entry(); })
, MoveConstructImpl ([](void* A, void* B) -> void { if constexpr (requires(T* A, T* B) { Memory::MoveConstruct (A, B); }) Memory::MoveConstruct (reinterpret_cast<T*>(A), reinterpret_cast< T*>(B)); else check_no_entry(); })
, RelocateConstructImpl ([](void* A, void* B) -> void { if constexpr (requires(T* A, T* B) { Memory::RelocateConstruct (A, B); }) Memory::RelocateConstruct (reinterpret_cast<T*>(A), reinterpret_cast< T*>(B)); else check_no_entry(); })
, CopyAssignImpl ([](void* A, const void* B) -> void { if constexpr (requires(T* A, const T* B) { Memory::CopyAssign (A, B); }) Memory::CopyAssign (reinterpret_cast<T*>(A), reinterpret_cast<const T*>(B)); else check_no_entry(); })
, MoveAssignImpl ([](void* A, void* B) -> void { if constexpr (requires(T* A, T* B) { Memory::MoveAssign (A, B); }) Memory::MoveAssign (reinterpret_cast<T*>(A), reinterpret_cast< T*>(B)); else check_no_entry(); })
, DestroyImpl ([](void* A ) -> void { if constexpr (requires(T* A ) { Memory::Destruct (A ); }) Memory::Destruct (reinterpret_cast<T*>(A) ); else check_no_entry(); })
, EqualityCompareImpl ([](const void* A, const void* B) -> bool { if constexpr (CEqualityComparable<T> ) return (*reinterpret_cast<const T*>(A) == *reinterpret_cast<const T*>(B)); else return false; })
, SynthThreeWayCompareImpl ([](const void* A, const void* B) -> partial_ordering { if constexpr (CSynthThreeWayComparable<T>) return NAMESPACE_REDCRAFT::SynthThreeWayCompare (*reinterpret_cast<const T*>(A), *reinterpret_cast<const T*>(B)); else return partial_ordering::unordered; })
, ThreeWayCompareImpl ([](const void* A, const void* B) -> partial_ordering { if constexpr (CThreeWayComparable<T> ) return (*reinterpret_cast<const T*>(A) <=> *reinterpret_cast<const T*>(B)); else return partial_ordering::unordered; })
, HashItemImpl ([](const void* A ) -> size_t { if constexpr (CHashable<T> ) return NAMESPACE_REDCRAFT::GetTypeHash (*reinterpret_cast<const T*>(A) ); else return 1080551797; })
, SwapItemImpl ([]( void* A, void* B) -> void { if constexpr (CSwappable<T> ) NAMESPACE_REDCRAFT::Swap (*reinterpret_cast< T*>(A), *reinterpret_cast< T*>(B)); else check_no_entry(); })
{ }
friend FORCEINLINE bool operator==(const FTypeInfo& LHS, const FTypeInfo& RHS) { return &LHS != &RHS ? LHS.GetNative() == RHS.GetNative() : true; }
friend FORCEINLINE bool operator< (const FTypeInfo& LHS, const FTypeInfo& RHS) { return LHS.GetNative().before(RHS.GetNative()); }
friend FORCEINLINE bool operator<=(const FTypeInfo& LHS, const FTypeInfo& RHS) { return LHS == RHS || LHS < RHS; } friend FORCEINLINE bool operator<=(const FTypeInfo& LHS, const FTypeInfo& RHS) { return LHS == RHS || LHS < RHS; }
friend FORCEINLINE bool operator>=(const FTypeInfo& LHS, const FTypeInfo& RHS) { return LHS == RHS || LHS > RHS; } friend FORCEINLINE bool operator>=(const FTypeInfo& LHS, const FTypeInfo& RHS) { return LHS == RHS || LHS > RHS; }
friend FORCEINLINE bool operator> (const FTypeInfo& LHS, const FTypeInfo& RHS) { return !(LHS < RHS); } friend FORCEINLINE bool operator> (const FTypeInfo& LHS, const FTypeInfo& RHS) { return !(LHS < RHS); }
@ -34,9 +305,14 @@ private:
return LHS < RHS ? strong_ordering::less : strong_ordering::greater; return LHS < RHS ? strong_ordering::less : strong_ordering::greater;
} }
public:
friend NAMESPACE_PRIVATE::FTypeInfoStatic;
}; };
#define Typeid(...) (*reinterpret_cast<const FTypeInfo*>(&typeid(__VA_ARGS__))) // NOTE: Unlike the standard typeid, this version only supports type and not expression
#define Typeid(...) (NAMESPACE_PRIVATE::FTypeInfoStatic::Value<typename TRemoveCVRef<__VA_ARGS__>::Type>)
NAMESPACE_MODULE_END(Utility) NAMESPACE_MODULE_END(Utility)
NAMESPACE_MODULE_END(Redcraft) NAMESPACE_MODULE_END(Redcraft)