feat(containers): add TArrayView and use TObserverPtr instead of raw pointer
This commit is contained in:
parent
343ff8d240
commit
c8650b4aa5
@ -13,6 +13,7 @@ void TestContainers()
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{
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TestArray();
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TestStaticArray();
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TestArrayView();
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}
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NAMESPACE_UNNAMED_BEGIN
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@ -178,6 +179,68 @@ void TestStaticArray()
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}
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}
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void TestArrayView()
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{
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{
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int32 ArrayA[] = { 0, 0, 0, 0 };
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TStaticArray ArrayB = { 4, 4, 4, 4 };
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TArray ArrayC = { 0, 1, 2, 3 };
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TArrayView<int32, 0> ViewA;
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TArrayView<int32, 4> ViewB(ArrayA);
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TArrayView<int32, 4> ViewC(ArrayB);
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TArrayView<int32, 4> ViewD(ViewC);
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TArrayView<int32, 4> ViewE(MoveTemp(ViewB));
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TArrayView<int32, 4> ViewF(ArrayC);
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TArrayView<int32> ViewG;
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TArrayView<int32> ViewH;
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TArrayView<int32> ViewI;
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ViewG = ViewD;
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ViewH = MoveTemp(ViewE);
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ViewI = ArrayC;
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always_check(ViewC == ArrayB);
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always_check(ViewD == ArrayB);
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always_check(ViewG == ArrayB);
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always_check(ViewF == ArrayC);
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always_check(ViewI == ArrayC);
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}
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{
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int32 Array[] = { 0, 1, 2, 3 };
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TArrayView<int32, 4> View = Array;
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int32 First2[] = { 0, 1 };
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always_check(View.First<2>() == First2);
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always_check(View.First(2) == First2);
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int32 Last2[] = { 2, 3 };
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always_check(View.Last<2>() == Last2);
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always_check(View.Last(2) == Last2);
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int32 Subview2[] = { 1, 2 };
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always_check((View.Subview<1, 2>() == Subview2));
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always_check((View.Subview(1, 2) == Subview2));
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}
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{
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int32 Array[] = { 0, 1, 2, 3 };
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TArrayView<int32, 4> View = Array;
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always_check(View.Num() == 4);
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always_check(View.NumBytes() == 16);
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TArrayView ViewBytes = View.AsBytes();
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always_check(ViewBytes.Num() == 16);
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always_check(ViewBytes.NumBytes() == 16);
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}
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}
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NAMESPACE_END(Testing)
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NAMESPACE_MODULE_END(Utility)
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@ -139,8 +139,7 @@ public:
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NODISCARD friend FORCEINLINE ptrdiff operator-(const TArrayIterator& LHS, const TArrayIterator& RHS) { LHS.CheckThis(); RHS.CheckThis(); return LHS.Pointer - RHS.Pointer; }
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NODISCARD FORCEINLINE explicit operator ElementType*() requires (!CConst<ElementType>) { CheckThis(); return Pointer; }
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NODISCARD FORCEINLINE explicit operator const ElementType*() const { CheckThis(); return Pointer; }
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NODISCARD FORCEINLINE explicit operator TObserverPtr<ElementType[]>() const { CheckThis(); return TObserverPtr<ElementType[]>(Pointer); }
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private:
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436
Redcraft.Utility/Source/Public/Containers/ArrayView.h
Normal file
436
Redcraft.Utility/Source/Public/Containers/ArrayView.h
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@ -0,0 +1,436 @@
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#pragma once
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#include "CoreTypes.h"
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#include "Templates/Utility.h"
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#include "Templates/TypeHash.h"
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#include "Templates/Container.h"
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#include "Containers/Iterator.h"
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#include "TypeTraits/TypeTraits.h"
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#include "Miscellaneous/Compare.h"
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#include "Memory/ObserverPointer.h"
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#include "Miscellaneous/AssertionMacros.h"
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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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template <CObject T, size_t InExtent>
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class TArrayView;
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NAMESPACE_PRIVATE_BEGIN
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template <typename T>
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class TArrayViewIterator
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{
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public:
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using ElementType = T;
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FORCEINLINE constexpr TArrayViewIterator() = default;
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# if DO_CHECK
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FORCEINLINE constexpr TArrayViewIterator(const TArrayViewIterator<TRemoveConst<ElementType>>& InValue) requires (CConst<ElementType>)
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: Pointer(InValue.Pointer), FirstSentinel(InValue.FirstSentinel), EndSentinel(InValue.EndSentinel)
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{ }
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# else
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FORCEINLINE constexpr TArrayViewIterator(const TArrayViewIterator<TRemoveConst<ElementType>>& InValue) requires (CConst<ElementType>)
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: Pointer(InValue.Pointer)
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{ }
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# endif
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FORCEINLINE constexpr TArrayViewIterator(const TArrayViewIterator&) = default;
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FORCEINLINE constexpr TArrayViewIterator(TArrayViewIterator&&) = default;
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FORCEINLINE constexpr TArrayViewIterator& operator=(const TArrayViewIterator&) = default;
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FORCEINLINE constexpr TArrayViewIterator& operator=(TArrayViewIterator&&) = default;
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NODISCARD friend FORCEINLINE constexpr bool operator==(const TArrayViewIterator& LHS, const TArrayViewIterator& RHS) { return LHS.Pointer == RHS.Pointer; }
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NODISCARD friend FORCEINLINE constexpr strong_ordering operator<=>(const TArrayViewIterator & LHS, const TArrayViewIterator & RHS) { return LHS.Pointer <=> RHS.Pointer; }
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NODISCARD FORCEINLINE constexpr ElementType& operator*() const { CheckThis(true); return *Pointer; }
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NODISCARD FORCEINLINE constexpr ElementType* operator->() const { CheckThis(true); return Pointer; }
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NODISCARD FORCEINLINE constexpr ElementType& operator[](ptrdiff Index) const { TArrayViewIterator Temp = *this + Index; return *Temp; }
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FORCEINLINE constexpr TArrayViewIterator& operator++() { ++Pointer; CheckThis(); return *this; }
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FORCEINLINE constexpr TArrayViewIterator& operator--() { --Pointer; CheckThis(); return *this; }
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FORCEINLINE constexpr TArrayViewIterator operator++(int) { TArrayViewIterator Temp = *this; ++Pointer; CheckThis(); return Temp; }
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FORCEINLINE constexpr TArrayViewIterator operator--(int) { TArrayViewIterator Temp = *this; --Pointer; CheckThis(); return Temp; }
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FORCEINLINE constexpr TArrayViewIterator& operator+=(ptrdiff Offset) { Pointer += Offset; CheckThis(); return *this; }
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FORCEINLINE constexpr TArrayViewIterator& operator-=(ptrdiff Offset) { Pointer -= Offset; CheckThis(); return *this; }
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NODISCARD friend FORCEINLINE constexpr TArrayViewIterator operator+(TArrayViewIterator Iter, ptrdiff Offset) { TArrayViewIterator Temp = Iter; Temp += Offset; return Temp; }
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NODISCARD friend FORCEINLINE constexpr TArrayViewIterator operator+(ptrdiff Offset, TArrayViewIterator Iter) { TArrayViewIterator Temp = Iter; Temp += Offset; return Temp; }
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NODISCARD FORCEINLINE constexpr TArrayViewIterator operator-(ptrdiff Offset) const { TArrayViewIterator Temp = *this; Temp -= Offset; return Temp; }
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NODISCARD friend FORCEINLINE constexpr ptrdiff operator-(const TArrayViewIterator& LHS, const TArrayViewIterator& RHS) { LHS.CheckThis(); RHS.CheckThis(); return LHS.Pointer - RHS.Pointer; }
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NODISCARD FORCEINLINE constexpr explicit operator TObserverPtr<ElementType[]>() const { CheckThis(); return TObserverPtr<ElementType[]>(Pointer); }
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private:
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ElementType* Pointer = nullptr;
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# if DO_CHECK
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ElementType* FirstSentinel = nullptr;
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ElementType* EndSentinel = nullptr;
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# endif
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# if DO_CHECK
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FORCEINLINE constexpr TArrayViewIterator(ElementType* InPointer, ElementType* InFirstSentinel, ElementType* InEndSentinel)
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: Pointer(InPointer), FirstSentinel(InFirstSentinel), EndSentinel(InEndSentinel)
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{ }
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# else
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FORCEINLINE constexpr TArrayViewIterator(ElementType* InPointer, ElementType* InFirstSentinel, ElementType* InEndSentinel)
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: Pointer(InPointer)
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{ }
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# endif
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FORCEINLINE constexpr void CheckThis(bool bExceptEnd = false) const
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{
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check_code
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({
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const bool bInLegalRange = FirstSentinel && EndSentinel && FirstSentinel <= Pointer && Pointer <= EndSentinel;
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const bool bIsDereferenceable = Pointer != EndSentinel;
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checkf(bInLegalRange && (!bExceptEnd || bIsDereferenceable), TEXT("Read access violation. Please check IsValidIterator()."));
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});
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}
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template <typename U>
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friend class TArrayViewIterator;
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template <CObject U, size_t InExtent>
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friend class NAMESPACE_REDCRAFT::TArrayView;
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};
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template <bool bEnable>
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struct TEnableArrayNum { size_t ArrayNum; };
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template <>
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struct TEnableArrayNum<false> { size_t ArrayNum; };
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NAMESPACE_PRIVATE_END
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template <CObject T, size_t N>
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struct TStaticArray;
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template <CObject T, typename A> requires (!CConst<T> && CDestructible<T> && CInstantiableAllocator<A>)
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class TArray;
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inline constexpr size_t DynamicExtent = INDEX_NONE;
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/**
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* The class template TArrayView describes an object that can refer to a contiguous sequence of objects with the first element of
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* the sequence at position zero. A TArrayView can either have a static extent, in which case the number of elements in the sequence
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* is known at compile-time and encoded in the type, or a dynamic extent.
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*/
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template <CObject T, size_t InExtent = DynamicExtent>
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class TArrayView final : private NAMESPACE_PRIVATE::TEnableArrayNum<InExtent == DynamicExtent>
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{
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private:
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using Impl = NAMESPACE_PRIVATE::TEnableArrayNum<InExtent == DynamicExtent>;
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public:
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using ElementType = T;
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using Iterator = NAMESPACE_PRIVATE::TArrayViewIterator<ElementType>;
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using ReverseIterator = TReverseIterator<Iterator>;
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static_assert(CContiguousIterator<Iterator>);
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static constexpr size_t Extent = InExtent;
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/** Constructs an empty array view. */
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FORCEINLINE constexpr TArrayView() requires (Extent == 0 || Extent == DynamicExtent) = default;
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/** Constructs an array view that is a view over the range ['InFirst', 'InFirst' + 'Count'). */
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template <CContiguousIterator I> requires (CConvertibleTo<TIteratorElementType<I>(*)[], ElementType(*)[]>)
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FORCEINLINE constexpr explicit (Extent != DynamicExtent) TArrayView(I InFirst, size_t InCount) : Pointer(static_cast<TObserverPtr<TIteratorElementType<I>[]>>(InFirst))
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{
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checkf(Extent == DynamicExtent || Extent == InCount, TEXT("Illegal range count. Please check InCount."));
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if constexpr (Extent == DynamicExtent)
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{
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Impl::ArrayNum = InCount;
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}
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}
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/** Constructs an array view that is a view over the range ['InFirst', 'InLast'). */
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template <CContiguousIterator I, CSizedSentinelFor<I> S> requires (CConvertibleTo<TIteratorElementType<I>(*)[], ElementType(*)[]>)
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FORCEINLINE constexpr explicit (Extent != DynamicExtent) TArrayView(I InFirst, S InLast) : Pointer(static_cast<TObserverPtr<TIteratorElementType<I>[]>>(InFirst))
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{
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checkf(Extent == DynamicExtent || Extent == InLast - InFirst, TEXT("Illegal range iterator. Please check InLast - InFirst."));
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if constexpr (Extent == DynamicExtent)
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{
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Impl::ArrayNum = InLast - InFirst;
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}
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}
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/** Constructs an array view that is a view over the array 'InArray'. */
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template <size_t N> requires (Extent == DynamicExtent || N == Extent)
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FORCEINLINE constexpr TArrayView(ElementType(&InArray)[N]) : Pointer(InArray)
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{
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if constexpr (Extent == DynamicExtent)
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{
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Impl::ArrayNum = N;
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}
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}
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/** Constructs an array view that is a view over the array 'InArray'. */
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template <typename U, size_t N> requires (CConvertibleTo<U(*)[], ElementType(*)[]>)
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FORCEINLINE constexpr TArrayView(TStaticArray<U, N>& InArray) : TArrayView(InArray.GetData().Get(), InArray.Num()) { }
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/** Constructs an array view that is a view over the array 'InArray'. */
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template <typename U, size_t N> requires (CConvertibleTo<U(*)[], ElementType(*)[]>)
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FORCEINLINE constexpr TArrayView(const TStaticArray<U, N>& InArray) : TArrayView(InArray.GetData().Get(), InArray.Num()) { }
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template <typename U, size_t N>
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FORCEINLINE constexpr TArrayView(const TStaticArray<U, N>&&) = delete;
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/** Constructs an array view that is a view over the array 'InArray'. */
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template <typename U> requires (CConvertibleTo<U(*)[], ElementType(*)[]>)
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FORCEINLINE constexpr TArrayView(TArray<U>& InArray) : TArrayView(InArray.GetData().Get(), InArray.Num()) { }
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/** Constructs an array view that is a view over the array 'InArray'. */
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template <typename U> requires (CConvertibleTo<U(*)[], ElementType(*)[]>)
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FORCEINLINE constexpr TArrayView(const TArray<U>& InArray) : TArrayView(InArray.GetData().Get(), InArray.Num()) { }
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template <typename U>
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FORCEINLINE constexpr TArrayView(const TArray<U>&&) = delete;
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/** Converting constructor from another array view 'InValue'. */
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template <typename U, size_t N> requires ((Extent == DynamicExtent || N == DynamicExtent || N == Extent) && CConvertibleTo<U(*)[], ElementType(*)[]>)
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FORCEINLINE constexpr explicit (Extent != DynamicExtent && N == DynamicExtent) TArrayView(TArrayView<U, N> InValue) : Pointer(InValue.GetData())
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{
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checkf(Extent == DynamicExtent || Extent == InValue.Num(), TEXT("Illegal view extent. Please check InValue.Num()."));
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if constexpr (Extent == DynamicExtent)
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{
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Impl::ArrayNum = InValue.Num();
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}
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}
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/** Defaulted copy constructor copies the size and data pointer. */
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FORCEINLINE constexpr TArrayView(const TArrayView&) = default;
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/** Assigns other to *this. This defaulted assignment operator performs a shallow copy of the data pointer and the size. */
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FORCEINLINE constexpr TArrayView& operator=(const TArrayView&) noexcept = default;
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/** Compares the contents of two array views. */
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NODISCARD friend constexpr bool operator==(TArrayView LHS, TArrayView RHS) requires (CWeaklyEqualityComparable<ElementType>)
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{
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if (LHS.Num() != RHS.Num()) return false;
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Iterator LHSIter = LHS.Begin();
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Iterator RHSIter = RHS.Begin();
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while (LHSIter != LHS.End())
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{
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if (*LHSIter != *RHSIter) return false;
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++LHSIter;
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++RHSIter;
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}
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check(RHSIter == RHS.End());
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return true;
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}
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/** Compares the contents of two array views. */
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NODISCARD friend constexpr auto operator<=>(TArrayView LHS, TArrayView RHS) requires (CSynthThreeWayComparable<ElementType>)
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{
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using OrderingType = TSynthThreeWayResult<ElementType>;
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if (LHS.Num() < RHS.Num()) return OrderingType::less;
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if (LHS.Num() > RHS.Num()) return OrderingType::greater;
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Iterator LHSIter = LHS.Begin();
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Iterator RHSIter = RHS.Begin();
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while (LHSIter != LHS.End())
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{
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TSynthThreeWayResult<ElementType> Ordering = SynthThreeWayCompare(*LHSIter, *RHSIter);
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if (Ordering != OrderingType::equivalent) return Ordering;
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++LHSIter;
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++RHSIter;
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}
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check(RHSIter == RHS.End());
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return OrderingType::equivalent;
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}
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/** Obtains an array view that is a view over the first 'Count' elements of this array view. */
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template <size_t Count> requires (Extent == DynamicExtent || Extent >= Count)
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NODISCARD FORCEINLINE constexpr TArrayView<ElementType, Count> First() const
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{
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checkf(Count <= Num(), TEXT("Illegal subview range. Please check Count."));
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return TArrayView<ElementType, Count>(Begin(), Count);
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}
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/** Obtains an array view that is a view over the first 'Count' elements of this array view. */
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NODISCARD FORCEINLINE constexpr TArrayView<ElementType, DynamicExtent> First(size_t Count) const
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{
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checkf(Count <= Num(), TEXT("Illegal subview range. Please check Count."));
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return TArrayView<ElementType, DynamicExtent>(Begin(), Count);
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}
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/** Obtains an array view that is a view over the last 'Count' elements of this array view. */
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template <size_t Count> requires (Extent == DynamicExtent || Extent >= Count)
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NODISCARD FORCEINLINE constexpr TArrayView<ElementType, Count> Last() const
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{
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checkf(Count <= Num(), TEXT("Illegal subview range. Please check Count."));
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return TArrayView<ElementType, Count>(End() - Count, Count);
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}
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/** Obtains an array view that is a view over the last 'Count' elements of this array view. */
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NODISCARD FORCEINLINE constexpr TArrayView<ElementType, DynamicExtent> Last(size_t Count) const
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{
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checkf(Count <= Num(), TEXT("Illegal subview range. Please check Count."));
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return TArrayView<ElementType, DynamicExtent>(End() - Count, Count);
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}
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/** Obtains an array view that is a view over the 'Count' elements of this array view starting at 'Offset'. */
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template <size_t Offset, size_t Count = DynamicExtent> requires (Extent == DynamicExtent || Count == DynamicExtent || Extent >= Offset + Count)
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NODISCARD FORCEINLINE constexpr auto Subview() const
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{
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checkf(Offset <= Num() && (Count == DynamicExtent || Offset + Count <= Num()), TEXT("Illegal subview range. Please check Offset and Count."));
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constexpr size_t SubviewExtent = Count != DynamicExtent ? Count : (Extent != DynamicExtent ? Extent - Offset : DynamicExtent);
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if constexpr (Count != DynamicExtent)
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{
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return TArrayView<ElementType, SubviewExtent>(Begin() + Offset, Count);
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}
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else
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{
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return TArrayView<ElementType, SubviewExtent>(Begin() + Offset, Num() - Offset);
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}
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}
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/** Obtains an array view that is a view over the 'Count' elements of this array view starting at 'Offset'. */
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NODISCARD FORCEINLINE constexpr auto Subview(size_t Offset, size_t Count = DynamicExtent) const
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{
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checkf(Offset <= Num() && (Count == DynamicExtent || Offset + Count <= Num()), TEXT("Illegal subview range. Please check Offset and Count."));
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if (Count != DynamicExtent)
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{
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return TArrayView<ElementType, DynamicExtent>(Begin() + Offset, Count);
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}
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else
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{
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return TArrayView<ElementType, DynamicExtent>(Begin() + Offset, Num() - Offset);
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}
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}
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|
||||
/** Obtains an array view to the object representation of the elements of the array view. */
|
||||
NODISCARD FORCEINLINE constexpr auto AsBytes()
|
||||
{
|
||||
constexpr size_t BytesExtent = Extent != DynamicExtent ? sizeof(ElementType) * Extent : DynamicExtent;
|
||||
|
||||
if constexpr (!CConst<ElementType>)
|
||||
{
|
||||
return TArrayView<uint8, BytesExtent>(reinterpret_cast<uint8*>(GetData().Get()), NumBytes());
|
||||
}
|
||||
else
|
||||
{
|
||||
return TArrayView<const uint8, BytesExtent>(reinterpret_cast<const uint8*>(GetData().Get()), NumBytes());
|
||||
}
|
||||
}
|
||||
|
||||
/** Obtains an array view to the object representation of the elements of the array view. */
|
||||
NODISCARD FORCEINLINE constexpr auto AsBytes() const
|
||||
{
|
||||
constexpr size_t BytesExtent = Extent != DynamicExtent ? sizeof(ElementType) * Extent : DynamicExtent;
|
||||
|
||||
return TArrayView<const uint8, BytesExtent>(reinterpret_cast<const uint8*>(GetData().Get()), NumBytes());
|
||||
}
|
||||
|
||||
/** @return The pointer to the underlying element storage. */
|
||||
NODISCARD FORCEINLINE constexpr TObserverPtr<ElementType[]> GetData() const { return Pointer; }
|
||||
|
||||
/** @return The iterator to the first or end element. */
|
||||
NODISCARD FORCEINLINE constexpr Iterator Begin() const { return Iterator(Pointer.Get() , Pointer.Get(), Pointer.Get() + Num()); }
|
||||
NODISCARD FORCEINLINE constexpr Iterator End() const { return Iterator(Pointer.Get() + Num(), Pointer.Get(), Pointer.Get() + Num()); }
|
||||
|
||||
/** @return The reverse iterator to the first or end element. */
|
||||
NODISCARD FORCEINLINE constexpr ReverseIterator RBegin() const { return ReverseIterator(End()); }
|
||||
NODISCARD FORCEINLINE constexpr ReverseIterator REnd() const { return ReverseIterator(Begin()); }
|
||||
|
||||
/** @return The number of elements in the container. */
|
||||
NODISCARD FORCEINLINE constexpr size_t Num() const { if constexpr (Extent == DynamicExtent) return Impl::ArrayNum; return Extent; }
|
||||
|
||||
/** @return The number of bytes in the container. */
|
||||
NODISCARD FORCEINLINE constexpr size_t NumBytes() const { return Num() * sizeof(ElementType); }
|
||||
|
||||
/** @return true if the container is empty, false otherwise. */
|
||||
NODISCARD FORCEINLINE constexpr bool IsEmpty() const { return Num() == 0; }
|
||||
|
||||
/** @return true if the iterator is valid, false otherwise. */
|
||||
NODISCARD FORCEINLINE constexpr bool IsValidIterator(Iterator Iter) const { return Begin() <= Iter && Iter <= End(); }
|
||||
|
||||
/** @return The reference to the requested element. */
|
||||
NODISCARD FORCEINLINE constexpr ElementType& operator[](size_t Index) const { checkf(Index < Num(), TEXT("Read access violation. Please check IsValidIterator().")); return Pointer[Index]; }
|
||||
|
||||
/** @return The reference to the first or last element. */
|
||||
NODISCARD FORCEINLINE constexpr ElementType& Front() const { return *Begin(); }
|
||||
NODISCARD FORCEINLINE constexpr ElementType& Back() const { return *(End() - 1); }
|
||||
|
||||
/** Overloads the GetTypeHash algorithm for TArrayView. */
|
||||
NODISCARD friend FORCEINLINE constexpr size_t GetTypeHash(TArrayView A) requires (CHashable<ElementType>)
|
||||
{
|
||||
size_t Result = 0;
|
||||
|
||||
for (Iterator Iter = A.Begin(); Iter != A.End(); ++Iter)
|
||||
{
|
||||
Result = HashCombine(Result, GetTypeHash(*Iter));
|
||||
}
|
||||
|
||||
return Result;
|
||||
}
|
||||
|
||||
ENABLE_RANGE_BASED_FOR_LOOP_SUPPORT
|
||||
|
||||
private:
|
||||
|
||||
TObserverPtr<ElementType[]> Pointer;
|
||||
|
||||
};
|
||||
|
||||
template <typename I, typename S>
|
||||
TArrayView(I, S) -> TArrayView<TRemoveReference<TIteratorReferenceType<I>>>;
|
||||
|
||||
template <typename T, size_t N>
|
||||
TArrayView(T(&)[N]) -> TArrayView<T, N>;
|
||||
|
||||
template <typename T, size_t N>
|
||||
TArrayView(TStaticArray<T, N>&) -> TArrayView<T, N>;
|
||||
|
||||
template <typename T, size_t N>
|
||||
TArrayView(const TStaticArray<T, N>&) -> TArrayView<const T, N>;
|
||||
|
||||
template <typename T>
|
||||
TArrayView(TArray<T>&) -> TArrayView<T, DynamicExtent>;
|
||||
|
||||
template <typename T>
|
||||
TArrayView(const TArray<T>&) -> TArrayView<const T, DynamicExtent>;
|
||||
|
||||
NAMESPACE_MODULE_END(Utility)
|
||||
NAMESPACE_MODULE_END(Redcraft)
|
||||
NAMESPACE_REDCRAFT_END
|
||||
@ -4,3 +4,4 @@
|
||||
#include "Containers/Iterator.h"
|
||||
#include "Containers/Array.h"
|
||||
#include "Containers/StaticArray.h"
|
||||
#include "Containers/ArrayView.h"
|
||||
|
||||
@ -7,6 +7,7 @@
|
||||
#include "Templates/Noncopyable.h"
|
||||
#include "TypeTraits/TypeTraits.h"
|
||||
#include "Miscellaneous/Compare.h"
|
||||
#include "Memory/ObserverPointer.h"
|
||||
#include "Miscellaneous/AssertionMacros.h"
|
||||
|
||||
NAMESPACE_REDCRAFT_BEGIN
|
||||
@ -117,7 +118,7 @@ concept CContiguousIterator = CRandomAccessIterator<I> && CLValueReference<TIter
|
||||
&& CSameAs<TIteratorElementType<I>, TRemoveReference<TIteratorReferenceType<I>>>
|
||||
&& requires(I& Iter)
|
||||
{
|
||||
static_cast<TAddPointer<TIteratorReferenceType<I>>>(Iter);
|
||||
static_cast<TObserverPtr<TIteratorElementType<I>[]>>(Iter);
|
||||
{ AddressOf(*Iter) } -> CSameAs<TAddPointer<TIteratorReferenceType<I>>>;
|
||||
};
|
||||
|
||||
@ -416,8 +417,7 @@ public:
|
||||
NODISCARD friend FORCEINLINE constexpr ptrdiff operator-(const TCountedIterator& LHS, FDefaultSentinel) { CheckThis(); return -LHS.Num(); }
|
||||
NODISCARD friend FORCEINLINE constexpr ptrdiff operator-(FDefaultSentinel, const TCountedIterator& RHS) { CheckThis(); return RHS.Num(); }
|
||||
|
||||
NODISCARD FORCEINLINE constexpr explicit operator ElementType*() requires (CContiguousIterator<IteratorType> && !CConst<ElementType>) { CheckThis(); return Current; }
|
||||
NODISCARD FORCEINLINE constexpr explicit operator const ElementType*() const requires (CContiguousIterator<IteratorType>) { CheckThis(); return Current; }
|
||||
NODISCARD FORCEINLINE constexpr explicit operator TObserverPtr<ElementType[]>() const requires (CContiguousIterator<IteratorType>) { CheckThis(); return TObserverPtr<ElementType[]>(Current); }
|
||||
|
||||
NODISCARD FORCEINLINE constexpr const IteratorType& GetBase() const& { CheckThis(); return Current; }
|
||||
NODISCARD FORCEINLINE constexpr IteratorType GetBase() && { CheckThis(); return Current; }
|
||||
@ -755,7 +755,7 @@ template <typename T, size_t N> FORCEINLINE constexpr decltype(auto) RBegin(
|
||||
template <typename T, size_t N> FORCEINLINE constexpr decltype(auto) RBegin(const T(& Container)[N]) { return TReverseIterator(End(Container)); }
|
||||
template <typename T, size_t N> FORCEINLINE constexpr decltype(auto) RBegin(const T(&& Container)[N]) { return TReverseIterator(End(Container)); }
|
||||
|
||||
/** Overloads the RBegin algorithm for T::rbegin(). */
|
||||
/** Overloads the RBegin algorithm for initializer_list. */
|
||||
template <typename T>
|
||||
FORCEINLINE constexpr decltype(auto) RBegin(initializer_list<T> Container)
|
||||
{
|
||||
@ -775,7 +775,7 @@ template <typename T, size_t N> FORCEINLINE constexpr decltype(auto) REnd(
|
||||
template <typename T, size_t N> FORCEINLINE constexpr decltype(auto) REnd(const T(& Container)[N]) { return TReverseIterator(Begin(Container)); }
|
||||
template <typename T, size_t N> FORCEINLINE constexpr decltype(auto) REnd(const T(&& Container)[N]) { return TReverseIterator(Begin(Container)); }
|
||||
|
||||
/** Overloads the REnd algorithm for T::end(). */
|
||||
/** Overloads the REnd algorithm for initializer_list. */
|
||||
template <typename T>
|
||||
FORCEINLINE constexpr decltype(auto) REnd(initializer_list<T> Container)
|
||||
{
|
||||
|
||||
@ -6,6 +6,7 @@
|
||||
#include "Templates/TypeHash.h"
|
||||
#include "Templates/Container.h"
|
||||
#include "Containers/Iterator.h"
|
||||
#include "Containers/ArrayView.h"
|
||||
#include "TypeTraits/TypeTraits.h"
|
||||
#include "Miscellaneous/Compare.h"
|
||||
#include "Memory/ObserverPointer.h"
|
||||
@ -15,93 +16,6 @@ NAMESPACE_REDCRAFT_BEGIN
|
||||
NAMESPACE_MODULE_BEGIN(Redcraft)
|
||||
NAMESPACE_MODULE_BEGIN(Utility)
|
||||
|
||||
NAMESPACE_PRIVATE_BEGIN
|
||||
|
||||
template <typename ArrayType, typename T>
|
||||
class TStaticArrayIterator
|
||||
{
|
||||
public:
|
||||
|
||||
using ElementType = T;
|
||||
|
||||
FORCEINLINE constexpr TStaticArrayIterator() = default;
|
||||
|
||||
# if DO_CHECK
|
||||
FORCEINLINE constexpr TStaticArrayIterator(const TStaticArrayIterator<ArrayType, TRemoveConst<ElementType>>& InValue) requires (CConst<ElementType>)
|
||||
: Owner(InValue.Owner), Pointer(InValue.Pointer)
|
||||
{ }
|
||||
# else
|
||||
FORCEINLINE constexpr TStaticArrayIterator(const TStaticArrayIterator<ArrayType, TRemoveConst<ElementType>>& InValue) requires (CConst<ElementType>)
|
||||
: Pointer(InValue.Pointer)
|
||||
{ }
|
||||
# endif
|
||||
|
||||
FORCEINLINE constexpr TStaticArrayIterator(const TStaticArrayIterator&) = default;
|
||||
FORCEINLINE constexpr TStaticArrayIterator(TStaticArrayIterator&&) = default;
|
||||
FORCEINLINE constexpr TStaticArrayIterator& operator=(const TStaticArrayIterator&) = default;
|
||||
FORCEINLINE constexpr TStaticArrayIterator& operator=(TStaticArrayIterator&&) = default;
|
||||
|
||||
NODISCARD friend FORCEINLINE constexpr bool operator==(const TStaticArrayIterator& LHS, const TStaticArrayIterator& RHS) { return LHS.Pointer == RHS.Pointer; }
|
||||
|
||||
NODISCARD friend FORCEINLINE constexpr strong_ordering operator<=>(const TStaticArrayIterator & LHS, const TStaticArrayIterator & RHS) { return LHS.Pointer <=> RHS.Pointer; }
|
||||
|
||||
NODISCARD FORCEINLINE constexpr ElementType& operator*() const { CheckThis(true); return *Pointer; }
|
||||
NODISCARD FORCEINLINE constexpr ElementType* operator->() const { CheckThis(true); return Pointer; }
|
||||
|
||||
NODISCARD FORCEINLINE constexpr ElementType& operator[](ptrdiff Index) const { TStaticArrayIterator Temp = *this + Index; return *Temp; }
|
||||
|
||||
FORCEINLINE constexpr TStaticArrayIterator& operator++() { ++Pointer; CheckThis(); return *this; }
|
||||
FORCEINLINE constexpr TStaticArrayIterator& operator--() { --Pointer; CheckThis(); return *this; }
|
||||
|
||||
FORCEINLINE constexpr TStaticArrayIterator operator++(int) { TStaticArrayIterator Temp = *this; ++Pointer; CheckThis(); return Temp; }
|
||||
FORCEINLINE constexpr TStaticArrayIterator operator--(int) { TStaticArrayIterator Temp = *this; --Pointer; CheckThis(); return Temp; }
|
||||
|
||||
FORCEINLINE constexpr TStaticArrayIterator& operator+=(ptrdiff Offset) { Pointer += Offset; CheckThis(); return *this; }
|
||||
FORCEINLINE constexpr TStaticArrayIterator& operator-=(ptrdiff Offset) { Pointer -= Offset; CheckThis(); return *this; }
|
||||
|
||||
NODISCARD friend FORCEINLINE constexpr TStaticArrayIterator operator+(TStaticArrayIterator Iter, ptrdiff Offset) { TStaticArrayIterator Temp = Iter; Temp += Offset; return Temp; }
|
||||
NODISCARD friend FORCEINLINE constexpr TStaticArrayIterator operator+(ptrdiff Offset, TStaticArrayIterator Iter) { TStaticArrayIterator Temp = Iter; Temp += Offset; return Temp; }
|
||||
|
||||
NODISCARD FORCEINLINE constexpr TStaticArrayIterator operator-(ptrdiff Offset) const { TStaticArrayIterator Temp = *this; Temp -= Offset; return Temp; }
|
||||
|
||||
NODISCARD friend FORCEINLINE constexpr ptrdiff operator-(const TStaticArrayIterator& LHS, const TStaticArrayIterator& RHS) { LHS.CheckThis(); RHS.CheckThis(); return LHS.Pointer - RHS.Pointer; }
|
||||
|
||||
NODISCARD FORCEINLINE constexpr explicit operator ElementType*() requires (!CConst<ElementType>) { CheckThis(); return Pointer; }
|
||||
NODISCARD FORCEINLINE constexpr explicit operator const ElementType*() const { CheckThis(); return Pointer; }
|
||||
|
||||
private:
|
||||
|
||||
# if DO_CHECK
|
||||
const ArrayType* Owner = nullptr;
|
||||
# endif
|
||||
|
||||
ElementType* Pointer = nullptr;
|
||||
|
||||
# if DO_CHECK
|
||||
FORCEINLINE constexpr TStaticArrayIterator(const ArrayType* InContainer, ElementType* InPointer)
|
||||
: Owner(InContainer), Pointer(InPointer)
|
||||
{ }
|
||||
# else
|
||||
FORCEINLINE constexpr TStaticArrayIterator(const ArrayType* InContainer, ElementType* InPointer)
|
||||
: Pointer(InPointer)
|
||||
{ }
|
||||
# endif
|
||||
|
||||
FORCEINLINE constexpr void CheckThis(bool bExceptEnd = false) const
|
||||
{
|
||||
checkf(Owner && Owner->IsValidIterator(*this), TEXT("Read access violation. Please check IsValidIterator()."));
|
||||
checkf(!(bExceptEnd && Owner->End() == *this), TEXT("Read access violation. Please check IsValidIterator()."));
|
||||
}
|
||||
|
||||
friend ArrayType;
|
||||
|
||||
template <typename InArrayType, typename InElementType>
|
||||
friend class TStaticArrayIterator;
|
||||
|
||||
};
|
||||
|
||||
NAMESPACE_PRIVATE_END
|
||||
|
||||
/** TStaticArray is a container that encapsulates fixed size arrays. */
|
||||
template <CObject T, size_t N>
|
||||
struct TStaticArray final
|
||||
@ -109,8 +23,8 @@ struct TStaticArray final
|
||||
|
||||
using ElementType = T;
|
||||
|
||||
using Iterator = NAMESPACE_PRIVATE::TStaticArrayIterator<TStaticArray, ElementType>;
|
||||
using ConstIterator = NAMESPACE_PRIVATE::TStaticArrayIterator<TStaticArray, const ElementType>;
|
||||
using Iterator = TArrayView< T, N>::Iterator;
|
||||
using ConstIterator = TArrayView<const T, N>::Iterator;
|
||||
|
||||
using ReverseIterator = TReverseIterator< Iterator>;
|
||||
using ConstReverseIterator = TReverseIterator<ConstIterator>;
|
||||
@ -170,10 +84,10 @@ struct TStaticArray final
|
||||
NODISCARD FORCEINLINE constexpr TObserverPtr<const ElementType[]> GetData() const { return TObserverPtr<const ElementType[]>(_); }
|
||||
|
||||
/** @return The iterator to the first or end element. */
|
||||
NODISCARD FORCEINLINE constexpr Iterator Begin() { return Iterator(this, _); }
|
||||
NODISCARD FORCEINLINE constexpr ConstIterator Begin() const { return ConstIterator(this, _); }
|
||||
NODISCARD FORCEINLINE constexpr Iterator End() { return Iterator(this, _ + Num()); }
|
||||
NODISCARD FORCEINLINE constexpr ConstIterator End() const { return ConstIterator(this, _ + Num()); }
|
||||
NODISCARD FORCEINLINE constexpr Iterator Begin() { return TArrayView< T, N>(*this).Begin(); }
|
||||
NODISCARD FORCEINLINE constexpr ConstIterator Begin() const { return TArrayView<const T, N>(*this).Begin(); }
|
||||
NODISCARD FORCEINLINE constexpr Iterator End() { return TArrayView< T, N>(*this).End(); }
|
||||
NODISCARD FORCEINLINE constexpr ConstIterator End() const { return TArrayView<const T, N>(*this).End(); }
|
||||
|
||||
/** @return The reverse iterator to the first or end element. */
|
||||
NODISCARD FORCEINLINE constexpr ReverseIterator RBegin() { return ReverseIterator(End()); }
|
||||
@ -183,7 +97,6 @@ struct TStaticArray final
|
||||
|
||||
/** @return The number of elements in the container. */
|
||||
NODISCARD FORCEINLINE constexpr size_t Num() const { return N; }
|
||||
NODISCARD FORCEINLINE constexpr size_t Max() const { return N; }
|
||||
|
||||
/** @return true if the container is empty, false otherwise. */
|
||||
NODISCARD FORCEINLINE constexpr bool IsEmpty() const { return Num() == 0; }
|
||||
|
||||
@ -567,16 +567,16 @@ public:
|
||||
/** Remove the default initialization and disallow the construction of a TFunctionRef that does not store the function target. */
|
||||
FORCEINLINE constexpr TFunctionRef() = delete;
|
||||
|
||||
FORCEINLINE constexpr TFunctionRef(const TFunctionRef& InValue) = default;
|
||||
FORCEINLINE constexpr TFunctionRef(TFunctionRef&& InValue) = default;
|
||||
FORCEINLINE constexpr TFunctionRef(const TFunctionRef&) = default;
|
||||
FORCEINLINE constexpr TFunctionRef(TFunctionRef&&) = default;
|
||||
|
||||
/**
|
||||
* We delete the assignment operators because we don't want it to be confused with being related to
|
||||
* regular C++ reference assignment - i.e. calling the assignment operator of whatever the reference
|
||||
* is bound to - because that's not what TFunctionRef does, nor is it even capable of doing that.
|
||||
*/
|
||||
FORCEINLINE constexpr TFunctionRef& operator=(const TFunctionRef& InValue) = delete;
|
||||
FORCEINLINE constexpr TFunctionRef& operator=(TFunctionRef&& InValue) = delete;
|
||||
FORCEINLINE constexpr TFunctionRef& operator=(const TFunctionRef&) = delete;
|
||||
FORCEINLINE constexpr TFunctionRef& operator=(TFunctionRef&&) = delete;
|
||||
|
||||
/** Constructor which binds a TFunctionRef to a callable object. */
|
||||
template <typename T> requires (!CTFunctionRef<TDecay<T>>
|
||||
@ -617,10 +617,10 @@ public:
|
||||
/** Default constructor. */
|
||||
FORCEINLINE constexpr TFunction(nullptr_t = nullptr) { Impl::Invalidate(); }
|
||||
|
||||
FORCEINLINE TFunction(const TFunction& InValue) = default;
|
||||
FORCEINLINE TFunction(TFunction&& InValue) = default;
|
||||
FORCEINLINE TFunction& operator=(const TFunction& InValue) = default;
|
||||
FORCEINLINE TFunction& operator=(TFunction&& InValue) = default;
|
||||
FORCEINLINE TFunction(const TFunction&) = default;
|
||||
FORCEINLINE TFunction(TFunction&&) = default;
|
||||
FORCEINLINE TFunction& operator=(const TFunction&) = default;
|
||||
FORCEINLINE TFunction& operator=(TFunction&&) = default;
|
||||
|
||||
/**
|
||||
* Constructs an TFunction with initial content an function object of type TDecay<T>,
|
||||
@ -746,10 +746,10 @@ public:
|
||||
/** Default constructor. */
|
||||
FORCEINLINE constexpr TUniqueFunction(nullptr_t = nullptr) { Impl::Invalidate(); }
|
||||
|
||||
FORCEINLINE TUniqueFunction(const TUniqueFunction& InValue) = delete;
|
||||
FORCEINLINE TUniqueFunction(TUniqueFunction&& InValue) = default;
|
||||
FORCEINLINE TUniqueFunction& operator=(const TUniqueFunction& InValue) = delete;
|
||||
FORCEINLINE TUniqueFunction& operator=(TUniqueFunction&& InValue) = default;
|
||||
FORCEINLINE TUniqueFunction(const TUniqueFunction&) = delete;
|
||||
FORCEINLINE TUniqueFunction(TUniqueFunction&&) = default;
|
||||
FORCEINLINE TUniqueFunction& operator=(const TUniqueFunction&) = delete;
|
||||
FORCEINLINE TUniqueFunction& operator=(TUniqueFunction&&) = default;
|
||||
|
||||
/** Constructor from TFunction to TUniqueFunction. */
|
||||
FORCEINLINE TUniqueFunction(const TFunction<F>& InValue)
|
||||
|
||||
@ -11,6 +11,7 @@ NAMESPACE_BEGIN(Testing)
|
||||
REDCRAFTUTILITY_API void TestContainers();
|
||||
REDCRAFTUTILITY_API void TestArray();
|
||||
REDCRAFTUTILITY_API void TestStaticArray();
|
||||
REDCRAFTUTILITY_API void TestArrayView();
|
||||
|
||||
NAMESPACE_END(Testing)
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user