refactor(templates): optimize TAny and TFunction and fix TFunction alignment problem
This commit is contained in:
parent
096150a305
commit
9ff3b1c583
@ -1233,6 +1233,8 @@ void TestFunction()
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TFunction<bool(bool)> Identity = [](bool In) { return In; };
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TFunction<bool(bool)> NotIdentity = NotFn(Identity);
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always_check(NotFn(Identity)(false));
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always_check(Identity(true));
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always_check(NotIdentity(false));
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}
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@ -13,31 +13,73 @@ NAMESPACE_REDCRAFT_BEGIN
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NAMESPACE_MODULE_BEGIN(Redcraft)
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NAMESPACE_MODULE_BEGIN(Utility)
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inline constexpr size_t ANY_DEFAULT_INLINE_SIZE = 64 - sizeof(uintptr);
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inline constexpr size_t ANY_DEFAULT_INLINE_ALIGNMENT = 16;
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// TAny's CustomStorage concept, see FAnyDefaultStorage.
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template <typename T>
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concept CAnyStorage = true; // TODO
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template <size_t InlineSize, size_t InlineAlignment = ANY_DEFAULT_INLINE_ALIGNMENT> requires (Memory::IsValidAlignment(InlineAlignment))
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struct alignas(InlineAlignment) TAny
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// TAny's default storage structure.
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struct alignas(16) FAnyDefaultStorage
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{
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constexpr TAny() : TypeInfo(0) { }
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// The built-in copy/move operators are disabled and CopyCustom/MoveCustom is used instead of them.
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// You can add custom variables like this.
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//Type Variable;
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//~ Begin CAnyStorage Interface
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inline static constexpr size_t InlineSize = 64 - sizeof(uintptr);
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inline static constexpr size_t InlineAlignment = 16;
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constexpr void* InlineAllocation() { return &InlineAllocationImpl; }
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constexpr const void* InlineAllocation() const { return &InlineAllocationImpl; }
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constexpr void*& HeapAllocation() { return HeapAllocationImpl; }
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constexpr void* HeapAllocation() const { return HeapAllocationImpl; }
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constexpr uintptr& TypeInfo() { return TypeInfoImpl; }
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constexpr uintptr TypeInfo() const { return TypeInfoImpl; }
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constexpr void CopyCustom(const FAnyDefaultStorage& InValue) { /* Variable = InValue.Variable; */ } // You just need to copy the custom variables.
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constexpr void MoveCustom( FAnyDefaultStorage&& InValue) { /* Variable = MoveTemp(InValue.Variable); */ } // You just need to move the custom variables.
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//~ End CAnyStorage Interface
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union
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{
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uint8 InlineAllocationImpl[InlineSize];
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void* HeapAllocationImpl;
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};
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uintptr TypeInfoImpl;
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};
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static_assert(CAnyStorage<FAnyDefaultStorage>);
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// You can add custom storage area through CustomStorage, such as TFunction.
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// It is not recommended to use this, FAny is recommended.
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template <CAnyStorage CustomStorage = FAnyDefaultStorage>
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struct TAny
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{
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inline static constexpr size_t InlineSize = CustomStorage::InlineSize;
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inline static constexpr size_t InlineAlignment = CustomStorage::InlineAlignment;
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constexpr TAny() { Storage.TypeInfo() = 0; }
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constexpr TAny(FInvalid) : TAny() { }
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FORCEINLINE TAny(const TAny& InValue)
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: TypeInfo(InValue.TypeInfo)
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{
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Storage.CopyCustom(InValue.Storage);
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Storage.TypeInfo() = InValue.Storage.TypeInfo();
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if (!IsValid()) return;
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switch (GetRepresentation())
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{
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case ERepresentation::Trivial:
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Memory::Memcpy(InlineAllocation, InValue.InlineAllocation);
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Memory::Memcpy(Storage.InlineAllocation(), InValue.Storage.InlineAllocation(), Storage.InlineSize);
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break;
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case ERepresentation::Small:
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GetTypeInfoImpl().CopyConstructImpl(GetAllocation(), InValue.GetAllocation());
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break;
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case ERepresentation::Big:
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HeapAllocation = Memory::Malloc(GetTypeInfoImpl().TypeSize, GetTypeInfoImpl().TypeAlignment);
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Storage.HeapAllocation() = Memory::Malloc(GetTypeInfoImpl().TypeSize, GetTypeInfoImpl().TypeAlignment);
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GetTypeInfoImpl().CopyConstructImpl(GetAllocation(), InValue.GetAllocation());
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break;
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default: check_no_entry();
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@ -45,21 +87,24 @@ struct alignas(InlineAlignment) TAny
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}
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FORCEINLINE TAny(TAny&& InValue)
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: TypeInfo(InValue.TypeInfo)
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{
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Storage.MoveCustom(MoveTemp(InValue.Storage));
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Storage.TypeInfo() = InValue.Storage.TypeInfo();
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if (!IsValid()) return;
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switch (GetRepresentation())
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{
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case ERepresentation::Trivial:
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Memory::Memcpy(InlineAllocation, InValue.InlineAllocation);
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Memory::Memcpy(Storage.InlineAllocation(), InValue.Storage.InlineAllocation(), Storage.InlineSize);
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break;
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case ERepresentation::Small:
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GetTypeInfoImpl().MoveConstructImpl(GetAllocation(), InValue.GetAllocation());
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break;
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case ERepresentation::Big:
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HeapAllocation = InValue.HeapAllocation;
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InValue.TypeInfo = 0;
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Storage.HeapAllocation() = InValue.Storage.HeapAllocation();
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InValue.Storage.TypeInfo() = 0;
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break;
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default: check_no_entry();
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}
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@ -87,6 +132,8 @@ struct alignas(InlineAlignment) TAny
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{
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if (&InValue == this) return *this;
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Storage.CopyCustom(InValue.Storage);
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if (!InValue.IsValid())
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{
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Reset();
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@ -96,7 +143,7 @@ struct alignas(InlineAlignment) TAny
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switch (GetRepresentation())
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{
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case ERepresentation::Trivial:
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Memory::Memcpy(InlineAllocation, InValue.InlineAllocation);
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Memory::Memcpy(Storage.InlineAllocation(), InValue.Storage.InlineAllocation(), Storage.InlineSize);
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break;
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case ERepresentation::Small:
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case ERepresentation::Big:
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@ -109,18 +156,18 @@ struct alignas(InlineAlignment) TAny
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{
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ResetImpl();
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TypeInfo = InValue.TypeInfo;
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Storage.TypeInfo() = InValue.Storage.TypeInfo();
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switch (GetRepresentation())
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{
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case ERepresentation::Trivial:
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Memory::Memcpy(InlineAllocation, InValue.InlineAllocation);
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Memory::Memcpy(Storage.InlineAllocation(), InValue.Storage.InlineAllocation(), Storage.InlineSize);
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break;
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case ERepresentation::Small:
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GetTypeInfoImpl().CopyConstructImpl(GetAllocation(), InValue.GetAllocation());
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break;
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case ERepresentation::Big:
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HeapAllocation = Memory::Malloc(GetTypeInfoImpl().TypeSize, GetTypeInfoImpl().TypeAlignment);
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Storage.HeapAllocation() = Memory::Malloc(GetTypeInfoImpl().TypeSize, GetTypeInfoImpl().TypeAlignment);
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GetTypeInfoImpl().CopyConstructImpl(GetAllocation(), InValue.GetAllocation());
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break;
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default: check_no_entry();
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@ -134,6 +181,8 @@ struct alignas(InlineAlignment) TAny
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{
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if (&InValue == this) return *this;
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Storage.MoveCustom(MoveTemp(InValue.Storage));
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if (!InValue.IsValid())
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{
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Reset();
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@ -143,15 +192,15 @@ struct alignas(InlineAlignment) TAny
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switch (GetRepresentation())
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{
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case ERepresentation::Trivial:
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Memory::Memcpy(InlineAllocation, InValue.InlineAllocation);
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Memory::Memcpy(Storage.InlineAllocation(), InValue.Storage.InlineAllocation(), Storage.InlineSize);
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break;
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case ERepresentation::Small:
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GetTypeInfoImpl().MoveAssignImpl(GetAllocation(), InValue.GetAllocation());
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break;
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case ERepresentation::Big:
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ResetImpl();
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HeapAllocation = InValue.HeapAllocation;
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InValue.TypeInfo = 0;
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Storage.HeapAllocation() = InValue.Storage.HeapAllocation();
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InValue.Storage.TypeInfo() = 0;
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break;
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default: check_no_entry();
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}
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@ -160,19 +209,19 @@ struct alignas(InlineAlignment) TAny
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{
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ResetImpl();
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TypeInfo = InValue.TypeInfo;
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Storage.TypeInfo() = InValue.Storage.TypeInfo();
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switch (GetRepresentation())
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{
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case ERepresentation::Trivial:
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Memory::Memcpy(InlineAllocation, InValue.InlineAllocation);
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Memory::Memcpy(Storage.InlineAllocation(), InValue.Storage.InlineAllocation(), Storage.InlineSize);
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break;
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case ERepresentation::Small:
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GetTypeInfoImpl().MoveConstructImpl(GetAllocation(), InValue.GetAllocation());
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break;
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case ERepresentation::Big:
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HeapAllocation = InValue.HeapAllocation;
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InValue.TypeInfo = 0;
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Storage.HeapAllocation() = InValue.Storage.HeapAllocation();
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InValue.Storage.TypeInfo() = 0;
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break;
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default: check_no_entry();
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}
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@ -211,10 +260,10 @@ struct alignas(InlineAlignment) TAny
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return GetValue<SelectedType>();
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}
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constexpr const type_info& GetTypeInfo() const { return IsValid() ? *GetTypeInfoImpl().TypeInfo : typeid(void); }
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constexpr const type_info& GetTypeInfo() const { return IsValid() ? *GetTypeInfoImpl().NativeTypeInfo : typeid(void); }
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constexpr bool IsValid() const { return TypeInfo != 0; }
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constexpr explicit operator bool() const { return TypeInfo != 0; }
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constexpr bool IsValid() const { return Storage.TypeInfo() != 0; }
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constexpr explicit operator bool() const { return Storage.TypeInfo() != 0; }
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template <typename T> constexpr bool HoldsAlternative() const { return IsValid() ? GetTypeInfo() == typeid(T) : false; }
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@ -236,10 +285,13 @@ struct alignas(InlineAlignment) TAny
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template <typename T> requires CSameAs<T, TDecay<T>>&& CDestructible<TDecay<T>>
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constexpr const T& Get(const T& DefaultValue) const& { return HoldsAlternative<T>() ? GetValue<T>() : DefaultValue; }
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constexpr CustomStorage& GetCustomStorage() requires (!CSameAs<CustomStorage, FAnyDefaultStorage>) { return Storage; }
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constexpr const CustomStorage& GetCustomStorage() const requires (!CSameAs<CustomStorage, FAnyDefaultStorage>) { return Storage; }
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FORCEINLINE void Reset()
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{
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ResetImpl();
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TypeInfo = 0;
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Storage.TypeInfo() = 0;
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}
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FORCEINLINE size_t GetTypeHash() const
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@ -280,6 +332,8 @@ struct alignas(InlineAlignment) TAny
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private:
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CustomStorage Storage;
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static constexpr uintptr_t RepresentationMask = 3;
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enum class ERepresentation : uint8
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@ -291,7 +345,7 @@ private:
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struct FTypeInfoImpl
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{
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const type_info* TypeInfo;
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const type_info* NativeTypeInfo;
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const size_t TypeSize;
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const size_t TypeAlignment;
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@ -321,9 +375,9 @@ private:
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template <typename T>
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constexpr FTypeInfoImpl(TInPlaceType<T>)
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: TypeInfo (&typeid(T))
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, TypeSize ( sizeof(T))
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, TypeAlignment (alignof(T))
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: NativeTypeInfo (&typeid(T))
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, TypeSize ( sizeof(T))
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, TypeAlignment (alignof(T))
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, CopyConstructImpl ([](void* A, const void* B) { if constexpr (requires(T* A, const T* B) { Memory::CopyConstruct (A, B); }) Memory::CopyConstruct (reinterpret_cast<T*>(A), reinterpret_cast<const T*>(B)); else checkf(false, TEXT("The type '%s' is not copy constructible."), typeid(Types).name()); })
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, MoveConstructImpl ([](void* A, void* B) { if constexpr (requires(T* A, T* B) { Memory::MoveConstruct (A, B); }) Memory::MoveConstruct (reinterpret_cast<T*>(A), reinterpret_cast< T*>(B)); else checkf(false, TEXT("The type '%s' is not move constructible."), typeid(Types).name()); })
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@ -339,43 +393,35 @@ private:
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{ }
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};
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union
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{
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TAlignedStorage<InlineSize, 1> InlineAllocation;
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void* HeapAllocation;
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};
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constexpr ERepresentation GetRepresentation() const { return static_cast<ERepresentation>(Storage.TypeInfo() & RepresentationMask); }
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constexpr const FTypeInfoImpl& GetTypeInfoImpl() const { return *reinterpret_cast<const FTypeInfoImpl*>(Storage.TypeInfo() & ~RepresentationMask); }
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uintptr TypeInfo;
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constexpr ERepresentation GetRepresentation() const { return static_cast<ERepresentation>(TypeInfo & RepresentationMask); }
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constexpr const FTypeInfoImpl& GetTypeInfoImpl() const { return *reinterpret_cast<const FTypeInfoImpl*>(TypeInfo & ~RepresentationMask); }
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constexpr void* GetAllocation() { return GetRepresentation() == ERepresentation::Trivial || GetRepresentation() == ERepresentation::Small ? &InlineAllocation : HeapAllocation; }
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constexpr const void* GetAllocation() const { return GetRepresentation() == ERepresentation::Trivial || GetRepresentation() == ERepresentation::Small ? &InlineAllocation : HeapAllocation; }
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constexpr void* GetAllocation() { return GetRepresentation() == ERepresentation::Trivial || GetRepresentation() == ERepresentation::Small ? Storage.InlineAllocation() : Storage.HeapAllocation(); }
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constexpr const void* GetAllocation() const { return GetRepresentation() == ERepresentation::Trivial || GetRepresentation() == ERepresentation::Small ? Storage.InlineAllocation() : Storage.HeapAllocation(); }
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template <typename SelectedType, typename... Types>
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FORCEINLINE void EmplaceImpl(Types&&... Args)
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{
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static constexpr const FTypeInfoImpl SelectedTypeInfo(InPlaceType<SelectedType>);
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TypeInfo = reinterpret_cast<uintptr>(&SelectedTypeInfo);
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Storage.TypeInfo() = reinterpret_cast<uintptr>(&SelectedTypeInfo);
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constexpr bool bIsInlineStorable = sizeof(SelectedType) <= InlineSize && alignof(SelectedType) <= InlineAlignment;
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constexpr bool bIsInlineStorable = sizeof(SelectedType) <= Storage.InlineSize && alignof(SelectedType) <= Storage.InlineAlignment;
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constexpr bool bIsTriviallyStorable = bIsInlineStorable && CTrivial<SelectedType> && CTriviallyCopyable<SelectedType>;
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if constexpr (bIsTriviallyStorable)
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{
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new(&InlineAllocation) SelectedType(Forward<Types>(Args)...);
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TypeInfo |= static_cast<uintptr>(ERepresentation::Trivial);
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new(Storage.InlineAllocation()) SelectedType(Forward<Types>(Args)...);
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Storage.TypeInfo() |= static_cast<uintptr>(ERepresentation::Trivial);
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}
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else if constexpr (bIsInlineStorable)
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{
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new(&InlineAllocation) SelectedType(Forward<Types>(Args)...);
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TypeInfo |= static_cast<uintptr>(ERepresentation::Small);
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new(Storage.InlineAllocation()) SelectedType(Forward<Types>(Args)...);
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Storage.TypeInfo() |= static_cast<uintptr>(ERepresentation::Small);
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}
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else
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{
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HeapAllocation = new SelectedType(Forward<Types>(Args)...);
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TypeInfo |= static_cast<uintptr>(ERepresentation::Big);
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Storage.HeapAllocation() = new SelectedType(Forward<Types>(Args)...);
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Storage.TypeInfo() |= static_cast<uintptr>(ERepresentation::Big);
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}
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}
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@ -392,7 +438,7 @@ private:
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break;
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case ERepresentation::Big:
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GetTypeInfoImpl().DestroyImpl(GetAllocation());
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Memory::Free(HeapAllocation);
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Memory::Free(Storage.HeapAllocation());
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break;
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default: check_no_entry();
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}
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@ -411,32 +457,32 @@ private:
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if (LHS.IsValid() == false) return partial_ordering::equivalent;
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return LHS.GetTypeInfoImpl().SynthThreeWayCompareImpl(LHS.GetAllocation(), RHS.GetAllocation());;
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}
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};
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template <typename T, size_t InlineSize, size_t InlineAlignment>
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constexpr bool operator==(const TAny<InlineSize, InlineAlignment>& LHS, const T& RHS)
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template <typename T, CAnyStorage StorageType>
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constexpr bool operator==(const TAny<StorageType>& LHS, const T& RHS)
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{
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return LHS.template HoldsAlternative<T>() ? LHS.template GetValue<T>() == RHS : false;
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}
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template <size_t InlineSize, size_t InlineAlignment>
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constexpr bool operator==(const TAny<InlineSize, InlineAlignment>& LHS, FInvalid)
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template <CAnyStorage StorageType>
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constexpr bool operator==(const TAny<StorageType>& LHS, FInvalid)
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{
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return !LHS.IsValid();
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}
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NAMESPACE_PRIVATE_BEGIN
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template <typename T> struct TIsTAny : FFalse { };
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template <size_t InlineSize, size_t InlineAlignment> struct TIsTAny<TAny<InlineSize, InlineAlignment>> : FTrue { };
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template <typename T> struct TIsTAny : FFalse { };
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template <CAnyStorage StorageType> struct TIsTAny<TAny<StorageType>> : FTrue { };
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NAMESPACE_PRIVATE_END
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template <typename T>
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concept CTAny = NAMESPACE_PRIVATE::TIsTAny<T>::Value;
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using FAny = TAny<ANY_DEFAULT_INLINE_SIZE>;
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using FAny = TAny<>;
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static_assert(sizeof(FAny) == 64, "The byte size of FAny is unexpected");
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@ -9,23 +9,17 @@
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#include "TypeTraits/TypeTraits.h"
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#include "Miscellaneous/AssertionMacros.h"
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// NOTE: Disable alignment limit warning
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#pragma warning(disable : 4359)
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NAMESPACE_REDCRAFT_BEGIN
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NAMESPACE_MODULE_BEGIN(Redcraft)
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NAMESPACE_MODULE_BEGIN(Utility)
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inline constexpr size_t FUNCTION_DEFAULT_INLINE_SIZE = ANY_DEFAULT_INLINE_SIZE - sizeof(uintptr);
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inline constexpr size_t FUNCTION_DEFAULT_INLINE_ALIGNMENT = ANY_DEFAULT_INLINE_ALIGNMENT;
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template <typename F> requires CFunction<F>
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struct TFunctionRef;
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template <typename F, size_t InlineSize, size_t InlineAlignment> requires CFunction<F> && (Memory::IsValidAlignment(InlineAlignment))
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template <typename F> requires CFunction<F>
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struct TFunction;
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template <typename F, size_t InlineSize, size_t InlineAlignment> requires CFunction<F> && (Memory::IsValidAlignment(InlineAlignment))
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template <typename F> requires CFunction<F>
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struct TUniqueFunction;
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NAMESPACE_PRIVATE_BEGIN
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@ -33,11 +27,11 @@ NAMESPACE_PRIVATE_BEGIN
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template <typename T> struct TIsTFunctionRef : FFalse { };
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template <typename F> struct TIsTFunctionRef<TFunctionRef<F>> : FTrue { };
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template <typename T> struct TIsTFunction : FFalse { };
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template <typename F, size_t I, size_t J> struct TIsTFunction<TFunction<F, I, J>> : FTrue { };
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template <typename T> struct TIsTFunction : FFalse { };
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template <typename F> struct TIsTFunction<TFunction<F>> : FTrue { };
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template <typename T> struct TIsTUniqueFunction : FFalse { };
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template <typename F, size_t I, size_t J> struct TIsTUniqueFunction<TUniqueFunction<F, I, J>> : FTrue { };
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template <typename T> struct TIsTUniqueFunction : FFalse { };
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||||
template <typename F> struct TIsTUniqueFunction<TUniqueFunction<F>> : FTrue { };
|
||||
|
||||
NAMESPACE_PRIVATE_END
|
||||
|
||||
@ -86,16 +80,47 @@ template <typename Ret, typename... Types> struct TFunctionInfo<Ret(Types...) co
|
||||
template <typename Ret, typename... Types> struct TFunctionInfo<Ret(Types...) const& > { using Fn = Ret(Types...); using CVRef = const int&; };
|
||||
template <typename Ret, typename... Types> struct TFunctionInfo<Ret(Types...) const&&> { using Fn = Ret(Types...); using CVRef = const int&&; };
|
||||
|
||||
template <typename F, typename CVRef, size_t InlineSize, size_t InlineAlignment, bool bIsRef> struct TFunctionImpl;
|
||||
template <typename CallableType>
|
||||
struct alignas(16) FFunctionStorage
|
||||
{
|
||||
//~ Begin CAnyStorage Interface
|
||||
inline static constexpr size_t InlineSize = 64 - sizeof(uintptr) - sizeof(CallableType);
|
||||
inline static constexpr size_t InlineAlignment = 16;
|
||||
constexpr void* InlineAllocation() { return &InlineAllocationImpl; }
|
||||
constexpr const void* InlineAllocation() const { return &InlineAllocationImpl; }
|
||||
constexpr void*& HeapAllocation() { return HeapAllocationImpl; }
|
||||
constexpr void* HeapAllocation() const { return HeapAllocationImpl; }
|
||||
constexpr uintptr& TypeInfo() { return TypeInfoImpl; }
|
||||
constexpr uintptr TypeInfo() const { return TypeInfoImpl; }
|
||||
constexpr void CopyCustom(const FFunctionStorage& InValue) { Callable = InValue.Callable; }
|
||||
constexpr void MoveCustom( FFunctionStorage&& InValue) { Callable = InValue.Callable; }
|
||||
//~ End CAnyStorage Interface
|
||||
|
||||
template <typename Ret, typename... Types, typename CVRef, size_t InlineSize, size_t InlineAlignment, bool bIsRef>
|
||||
struct alignas(InlineAlignment) TFunctionImpl<Ret(Types...), CVRef, InlineSize, InlineAlignment, bIsRef>
|
||||
union
|
||||
{
|
||||
uint8 InlineAllocationImpl[InlineSize];
|
||||
void* HeapAllocationImpl;
|
||||
};
|
||||
|
||||
uintptr TypeInfoImpl;
|
||||
|
||||
CallableType Callable;
|
||||
|
||||
template <CAnyStorage T>
|
||||
friend struct TAny;
|
||||
|
||||
};
|
||||
|
||||
template <typename F, typename CVRef, bool bIsRef> struct TFunctionImpl;
|
||||
|
||||
template <typename Ret, typename... Types, typename CVRef, bool bIsRef>
|
||||
struct TFunctionImpl<Ret(Types...), CVRef, bIsRef>
|
||||
{
|
||||
public:
|
||||
|
||||
using ResultType = Ret;
|
||||
using ArgumentType = TTuple<Types...>;
|
||||
|
||||
|
||||
TFunctionImpl() = default;
|
||||
TFunctionImpl(const TFunctionImpl&) = default;
|
||||
TFunctionImpl(TFunctionImpl&& InValue) = default;
|
||||
@ -110,8 +135,8 @@ public:
|
||||
FORCEINLINE ResultType operator()(Types... Args) const& requires (CSameAs<CVRef, const int& >) { return CallImpl(Forward<Types>(Args)...); }
|
||||
FORCEINLINE ResultType operator()(Types... Args) const&& requires (CSameAs<CVRef, const int&&>) { return CallImpl(Forward<Types>(Args)...); }
|
||||
|
||||
constexpr bool IsValid() const { return Callable != nullptr; }
|
||||
constexpr explicit operator bool() const { return Callable != nullptr; }
|
||||
constexpr bool IsValid() const { return GetCallableImpl() != nullptr; }
|
||||
constexpr explicit operator bool() const { return GetCallableImpl() != nullptr; }
|
||||
|
||||
FORCEINLINE const type_info& TargetType() const requires (!bIsRef) { return IsValid() ? Storage.GetTypeInfo() : typeid(void); };
|
||||
|
||||
@ -140,30 +165,49 @@ public:
|
||||
return;
|
||||
}
|
||||
|
||||
Swap(Callable, InValue.Callable);
|
||||
Swap(Storage, InValue.Storage);
|
||||
}
|
||||
|
||||
private:
|
||||
|
||||
using StorageType = TConditional<bIsRef, TCopyConst<CVRef, void>*, TAny<InlineSize, 1>>;
|
||||
using StorageRef = TConditional<bIsRef, TCopyConst<CVRef, void>*, TCopyCVRef<CVRef, StorageType>&>;
|
||||
using StoragePtrType = TCopyConst<CVRef, void>*;
|
||||
using CallableType = ResultType(*)(StoragePtrType, Types&&...);
|
||||
|
||||
using CallFunc = ResultType(*)(StorageRef, Types&&...);
|
||||
struct FunctionRefStorage
|
||||
{
|
||||
StoragePtrType Ptr;
|
||||
CallableType Callable;
|
||||
};
|
||||
|
||||
using FunctionStorage = TAny<FFunctionStorage<CallableType>>;
|
||||
using StorageType = TConditional<bIsRef, FunctionRefStorage, FunctionStorage>;
|
||||
|
||||
StorageType Storage;
|
||||
CallFunc Callable;
|
||||
|
||||
FORCEINLINE CallableType& GetCallableImpl()
|
||||
{
|
||||
if constexpr (bIsRef) return Storage.Callable;
|
||||
else return Storage.GetCustomStorage().Callable;
|
||||
}
|
||||
|
||||
FORCEINLINE CallableType GetCallableImpl() const
|
||||
{
|
||||
if constexpr (bIsRef) return Storage.Callable;
|
||||
else return Storage.GetCustomStorage().Callable;
|
||||
}
|
||||
|
||||
FORCEINLINE ResultType CallImpl(Types&&... Args)
|
||||
{
|
||||
checkf(IsValid(), TEXT("Attempting to call an unbound TFunction!"));
|
||||
return Callable(Storage, Forward<Types>(Args)...);
|
||||
if constexpr (bIsRef) return GetCallableImpl()(Storage.Ptr, Forward<Types>(Args)...);
|
||||
else return GetCallableImpl()(&Storage, Forward<Types>(Args)...);
|
||||
}
|
||||
|
||||
FORCEINLINE ResultType CallImpl(Types&&... Args) const
|
||||
{
|
||||
checkf(IsValid(), TEXT("Attempting to call an unbound TFunction!"));
|
||||
return Callable(Storage, Forward<Types>(Args)...);
|
||||
if constexpr (bIsRef) return GetCallableImpl()(Storage.Ptr, Forward<Types>(Args)...);
|
||||
else return GetCallableImpl()(&Storage, Forward<Types>(Args)...);
|
||||
}
|
||||
|
||||
protected:
|
||||
@ -171,23 +215,23 @@ protected:
|
||||
template <typename DecayedType, typename... ArgTypes>
|
||||
FORCEINLINE void EmplaceImpl(ArgTypes&&... Args)
|
||||
{
|
||||
using CallableType = TCopyConst<TRemoveReference<CVRef>, DecayedType>;
|
||||
using FuncType = TCopyConst<TRemoveReference<CVRef>, DecayedType>;
|
||||
|
||||
if constexpr (bIsRef) Storage = ((reinterpret_cast<StorageType>(AddressOf(Args))), ...);
|
||||
if constexpr (bIsRef) Storage.Ptr = (AddressOf(Args), ...);
|
||||
else Storage.template Emplace<DecayedType>(Forward<ArgTypes>(Args)...);
|
||||
|
||||
Callable = [](StorageRef Storage, Types&&... Args) -> ResultType
|
||||
GetCallableImpl() = [](StoragePtrType Storage, Types&&... Args) -> ResultType
|
||||
{
|
||||
using InvokeType = TConditional<
|
||||
CReference<CVRef>,
|
||||
TCopyCVRef<CVRef, CallableType>,
|
||||
TCopyCVRef<CVRef, CallableType>&
|
||||
TCopyCVRef<CVRef, FuncType>,
|
||||
TCopyCVRef<CVRef, FuncType>&
|
||||
>;
|
||||
|
||||
const auto GetFunc = [&Storage]() -> InvokeType
|
||||
const auto GetFunc = [Storage]() -> InvokeType
|
||||
{
|
||||
if constexpr (!bIsRef) return Storage.template GetValue<DecayedType>();
|
||||
else return static_cast<InvokeType>(*reinterpret_cast<CallableType*>(Storage));
|
||||
if constexpr (!bIsRef) return static_cast<TCopyConst<CVRef, FunctionStorage>*>(Storage)->template GetValue<DecayedType>();
|
||||
else return static_cast<InvokeType>(*reinterpret_cast<FuncType*>(Storage));
|
||||
};
|
||||
|
||||
return InvokeResult<ResultType>(GetFunc(), Forward<Types>(Args)...);
|
||||
@ -196,11 +240,7 @@ protected:
|
||||
|
||||
FORCEINLINE void AssignImpl(const TFunctionImpl& InValue)
|
||||
{
|
||||
if (InValue.IsValid())
|
||||
{
|
||||
Callable = InValue.Callable;
|
||||
Storage = InValue.Storage;
|
||||
}
|
||||
if (InValue.IsValid()) Storage = InValue.Storage;
|
||||
else ResetImpl();
|
||||
}
|
||||
|
||||
@ -208,14 +248,13 @@ protected:
|
||||
{
|
||||
if (InValue.IsValid())
|
||||
{
|
||||
Callable = InValue.Callable;
|
||||
Storage = MoveTemp(InValue.Storage);
|
||||
InValue.ResetImpl();
|
||||
}
|
||||
else ResetImpl();
|
||||
}
|
||||
|
||||
constexpr void ResetImpl() { Callable = nullptr; }
|
||||
constexpr void ResetImpl() { GetCallableImpl() = nullptr; }
|
||||
|
||||
};
|
||||
|
||||
@ -226,8 +265,6 @@ struct TFunctionRef
|
||||
: public NAMESPACE_PRIVATE::TFunctionImpl<
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::Fn,
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::CVRef,
|
||||
FUNCTION_DEFAULT_INLINE_SIZE,
|
||||
FUNCTION_DEFAULT_INLINE_ALIGNMENT,
|
||||
true>
|
||||
{
|
||||
private:
|
||||
@ -235,8 +272,6 @@ private:
|
||||
using Super = NAMESPACE_PRIVATE::TFunctionImpl<
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::Fn,
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::CVRef,
|
||||
FUNCTION_DEFAULT_INLINE_SIZE,
|
||||
FUNCTION_DEFAULT_INLINE_ALIGNMENT,
|
||||
true>;
|
||||
|
||||
public:
|
||||
@ -263,14 +298,11 @@ public:
|
||||
|
||||
};
|
||||
|
||||
template <typename F, size_t InlineSize = FUNCTION_DEFAULT_INLINE_SIZE, size_t InlineAlignment = FUNCTION_DEFAULT_INLINE_ALIGNMENT>
|
||||
requires CFunction<F> && (Memory::IsValidAlignment(InlineAlignment))
|
||||
template <typename F> requires CFunction<F>
|
||||
struct TFunction
|
||||
: public NAMESPACE_PRIVATE::TFunctionImpl<
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::Fn,
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::CVRef,
|
||||
InlineSize,
|
||||
InlineAlignment,
|
||||
false>
|
||||
{
|
||||
private:
|
||||
@ -278,8 +310,6 @@ private:
|
||||
using Super = NAMESPACE_PRIVATE::TFunctionImpl<
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::Fn,
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::CVRef,
|
||||
InlineSize,
|
||||
InlineAlignment,
|
||||
false>;
|
||||
|
||||
public:
|
||||
@ -349,14 +379,11 @@ public:
|
||||
|
||||
};
|
||||
|
||||
template <typename F, size_t InlineSize = FUNCTION_DEFAULT_INLINE_SIZE, size_t InlineAlignment = FUNCTION_DEFAULT_INLINE_ALIGNMENT>
|
||||
requires CFunction<F> && (Memory::IsValidAlignment(InlineAlignment))
|
||||
template <typename F> requires CFunction<F>
|
||||
struct TUniqueFunction
|
||||
: public NAMESPACE_PRIVATE::TFunctionImpl<
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::Fn,
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::CVRef,
|
||||
InlineSize,
|
||||
InlineAlignment,
|
||||
false>
|
||||
{
|
||||
private:
|
||||
@ -364,8 +391,6 @@ private:
|
||||
using Super = NAMESPACE_PRIVATE::TFunctionImpl<
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::Fn,
|
||||
typename NAMESPACE_PRIVATE::TFunctionInfo<F>::CVRef,
|
||||
InlineSize,
|
||||
InlineAlignment,
|
||||
false>;
|
||||
|
||||
public:
|
||||
@ -383,23 +408,23 @@ public:
|
||||
return *this;
|
||||
}
|
||||
|
||||
FORCEINLINE TUniqueFunction(const TFunction<F, InlineSize, InlineAlignment>& InValue)
|
||||
FORCEINLINE TUniqueFunction(const TFunction<F>& InValue)
|
||||
: Super(*reinterpret_cast<const TUniqueFunction*>(&InValue))
|
||||
{ }
|
||||
|
||||
FORCEINLINE TUniqueFunction(TFunction<F, InlineSize, InlineAlignment>&& InValue)
|
||||
FORCEINLINE TUniqueFunction(TFunction<F>&& InValue)
|
||||
: Super(MoveTemp(*reinterpret_cast<const TUniqueFunction*>(&InValue)))
|
||||
{
|
||||
InValue.Reset();
|
||||
}
|
||||
|
||||
FORCEINLINE TUniqueFunction& operator=(const TFunction<F, InlineSize, InlineAlignment>& InValue)
|
||||
FORCEINLINE TUniqueFunction& operator=(const TFunction<F>& InValue)
|
||||
{
|
||||
Super::AssignImpl(*reinterpret_cast<const TUniqueFunction*>(&InValue));
|
||||
return *this;
|
||||
}
|
||||
|
||||
FORCEINLINE TUniqueFunction& operator=(TFunction<F, InlineSize, InlineAlignment>&& InValue)
|
||||
FORCEINLINE TUniqueFunction& operator=(TFunction<F>&& InValue)
|
||||
{
|
||||
Super::AssignImpl(MoveTemp(*reinterpret_cast<TUniqueFunction*>(&InValue)));
|
||||
return *this;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user