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refactor(templates): TUniquePtr calls the deleter using Invoke() instead

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This commit is contained in:
_Redstone_c_ 2023-01-07 11:53:29 +08:00
parent b7c3ffd0fb
commit c7e3ac32b4
1 changed files with 25 additions and 24 deletions
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49
Redcraft.Utility/Source/Public/Templates/UniquePointer.h
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@ -1,6 +1,7 @@
#pragma once
#include "CoreTypes.h"
#include "Templates/Invoke.h"
#include "Templates/Utility.h"
#include "Templates/Noncopyable.h"
#include "TypeTraits/PrimaryType.h"
@ -123,7 +124,7 @@ struct TDefaultDelete<T[]>
};
/** This is essentially a reference version of TUniquePtr. */
template <typename T, CInvocable<TRemoveExtent<T>*> E = TDefaultDelete<T>> requires (CObject<T> && !CBoundedArray<T> && !CRValueReference<E>)
template <typename T, CInvocable<TRemoveExtent<T>*> E = TDefaultDelete<T>> requires (CObject<T> && !CBoundedArray<T> && (CDestructible<E> || CLValueReference<E>))
class TUniqueRef final : private FSingleton
{
public:
@ -151,7 +152,7 @@ public:
}
/** Destroy the owned object. */
FORCEINLINE constexpr ~TUniqueRef() { GetDeleter()(Get()); }
FORCEINLINE constexpr ~TUniqueRef() { Invoke(GetDeleter(), Get()); }
/** Compares the pointer values of two TUniqueRef. */
NODISCARD friend FORCEINLINE constexpr bool operator==(const TUniqueRef& LHS, const TUniqueRef& RHS) { return LHS.Get() == RHS.Get(); }
@ -172,7 +173,7 @@ public:
FORCEINLINE constexpr void Reset(T* InPtr)
{
checkf(InPtr != nullptr, TEXT("TUniqueRef cannot be initialized by nullptr. Please use TUniquePtr."));
GetDeleter()(Get());
Invoke(GetDeleter(), Get());
Storage.GetPointer() = InPtr;
}
@ -214,8 +215,8 @@ public:
NODISCARD FORCEINLINE constexpr T* Get() const { return Storage.GetPointer(); }
/** @return The deleter that is used for destruction of the managed object. */
NODISCARD FORCEINLINE constexpr E& GetDeleter() { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr const E& GetDeleter() const { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr E& GetDeleter() { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr const E& GetDeleter() const { return Storage.GetDeleter(); }
/** @return The a reference or pointer to the object owned by *this, i.e. Get(). */
NODISCARD FORCEINLINE constexpr T& operator*() const { return *Get(); }
@ -271,7 +272,7 @@ public:
}
/** Destroy the owned array. */
FORCEINLINE constexpr ~TUniqueRef() { GetDeleter()(Get()); }
FORCEINLINE constexpr ~TUniqueRef() { Invoke(GetDeleter(), Get()); }
/** Compares the pointer values of two TUniqueRef. */
NODISCARD friend FORCEINLINE constexpr bool operator==(const TUniqueRef& LHS, const TUniqueRef& RHS) { return LHS.Get() == RHS.Get(); }
@ -295,7 +296,7 @@ public:
FORCEINLINE constexpr void Reset(U InPtr)
{
checkf(InPtr != nullptr, TEXT("TUniqueRef cannot be initialized by nullptr. Please use TUniquePtr."));
GetDeleter()(Get());
Invoke(GetDeleter(), Get());
Storage.GetPointer() = InPtr;
}
@ -340,8 +341,8 @@ public:
NODISCARD FORCEINLINE constexpr T* Get() const { return Storage.GetPointer(); }
/** @return The deleter that is used for destruction of the managed array. */
NODISCARD FORCEINLINE constexpr E& GetDeleter() { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr const E& GetDeleter() const { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr E& GetDeleter() { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr const E& GetDeleter() const { return Storage.GetDeleter(); }
/** @return The element at index, i.e. Get()[Index]. */
NODISCARD FORCEINLINE constexpr T& operator[](size_t Index) const { return Get()[Index]; }
@ -363,7 +364,7 @@ private:
};
/** Single-ownership smart pointer. Use this when you need an object's lifetime to be strictly bound to the lifetime of a single smart pointer. */
template <typename T, CInvocable<TRemoveExtent<T>*> E = TDefaultDelete<T>> requires (CObject<T> && !CBoundedArray<T> && !CRValueReference<E>)
template <typename T, CInvocable<TRemoveExtent<T>*> E = TDefaultDelete<T>> requires (CObject<T> && !CBoundedArray<T> && (CDestructible<E> || CLValueReference<E>))
class TUniquePtr final : private FNoncopyable
{
public:
@ -393,10 +394,10 @@ public:
FORCEINLINE constexpr TUniquePtr(TUniquePtr<U, InE>&& InValue) : Storage(InValue.Release(), Forward<InE>(InValue.GetDeleter())) { }
/** If !IsValid() there are no effects. Otherwise, the owned object is destroyed. */
FORCEINLINE constexpr ~TUniquePtr() { if (IsValid()) GetDeleter()(Get()); }
FORCEINLINE constexpr ~TUniquePtr() { if (IsValid()) Invoke(GetDeleter(), Get()); }
/** Move assignment operator. Transfers ownership from 'InValue' to *this. */
FORCEINLINE constexpr TUniquePtr& operator=(TUniquePtr&& InValue)
FORCEINLINE constexpr TUniquePtr& operator=(TUniquePtr&& InValue) requires (!CReference<E> && CAssignableFrom<E&, E&&>)
{
Reset(InValue.Release());
GetDeleter() = Forward<E>(InValue.GetDeleter());
@ -434,7 +435,7 @@ public:
/** Replaces the managed object. */
FORCEINLINE constexpr void Reset(T* InPtr = nullptr)
{
if (IsValid()) GetDeleter()(Get());
if (IsValid()) Invoke(GetDeleter(), Get());
Storage.GetPointer() = InPtr;
}
@ -464,8 +465,8 @@ public:
NODISCARD FORCEINLINE constexpr T* Get() const { return Storage.GetPointer(); }
/** @return The deleter that is used for destruction of the managed object. */
NODISCARD FORCEINLINE constexpr E& GetDeleter() { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr const E& GetDeleter() const { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr E& GetDeleter() { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr const E& GetDeleter() const { return Storage.GetDeleter(); }
/** @return true if *this owns an object, false otherwise. */
NODISCARD FORCEINLINE constexpr bool IsValid() const { return Get() != nullptr; }
@ -489,7 +490,7 @@ private:
NAMESPACE_PRIVATE::TUniqueStorage<T, E> Storage;
template <typename OtherT, CInvocable<TRemoveExtent<OtherT>*> OtherE> requires (CObject<OtherT> && !CBoundedArray<OtherT> && !CRValueReference<OtherE>)
template <typename OtherT, CInvocable<TRemoveExtent<OtherT>*> OtherE> requires (CObject<OtherT> && !CBoundedArray<OtherT> && (CDestructible<OtherE> || CLValueReference<OtherE>))
friend class TUniquePtr;
};
@ -525,15 +526,15 @@ public:
FORCEINLINE constexpr TUniquePtr(TUniquePtr&& InValue) : Storage(InValue.Release(), Forward<E>(InValue.GetDeleter())) { }
/** Constructs a TUniquePtr by transferring ownership from 'InValue' to *this and stores the nullptr in 'InValue'. */
template <typename U = T*, typename InE> requires (CConvertibleTo<U(*)[], T(*)[]> && CArray<U>
template <typename U, typename InE> requires (CConvertibleTo<U(*)[], T(*)[]> && CArray<U>
&& ((CReference<E> && CSameAs<InE, E>) || (!CReference<E> && CConvertibleTo<InE, E>)))
FORCEINLINE constexpr TUniquePtr(TUniquePtr<U, InE>&& InValue) : Storage(InValue.Release(), Forward<InE>(InValue.GetDeleter())) { }
/** If !IsValid() there are no effects. Otherwise, the owned array is destroyed. */
FORCEINLINE constexpr ~TUniquePtr() { if (IsValid()) GetDeleter()(Get()); }
FORCEINLINE constexpr ~TUniquePtr() { if (IsValid()) Invoke(GetDeleter(), Get()); }
/** Move assignment operator. Transfers ownership from 'InValue' to *this. */
FORCEINLINE constexpr TUniquePtr& operator=(TUniquePtr&& InValue)
FORCEINLINE constexpr TUniquePtr& operator=(TUniquePtr&& InValue) requires (!CReference<E> && CAssignableFrom<E&, E&&>)
{
Reset(InValue.Release());
GetDeleter() = Forward<E>(InValue.GetDeleter());
@ -541,7 +542,7 @@ public:
}
/** Move assignment operator. Transfers ownership from 'InValue' to *this. */
template <typename U = T*, typename InE> requires (CConvertibleTo<U(*)[], T(*)[]>
template <typename U, typename InE> requires (CConvertibleTo<U(*)[], T(*)[]>
&& CArray<U> && !CReference<E> && CAssignableFrom<E&, InE&&>)
FORCEINLINE constexpr TUniquePtr& operator=(TUniquePtr<U, E>&& InValue)
{
@ -574,7 +575,7 @@ public:
template <typename U = T*> requires (CNullPointer<U> || (CPointer<U> && CConvertibleTo<TRemovePointer<U>(*)[], T(*)[]>))
FORCEINLINE constexpr void Reset(U InPtr = nullptr)
{
if (IsValid()) GetDeleter()(Get());
if (IsValid()) Invoke(GetDeleter(), Get());
Storage.GetPointer() = InPtr;
}
@ -607,8 +608,8 @@ public:
NODISCARD FORCEINLINE constexpr T* Get() const { return Storage.GetPointer(); }
/** @return The deleter that is used for destruction of the managed array. */
NODISCARD FORCEINLINE constexpr E& GetDeleter() { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr const E& GetDeleter() const { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr E& GetDeleter() { return Storage.GetDeleter(); }
NODISCARD FORCEINLINE constexpr const E& GetDeleter() const { return Storage.GetDeleter(); }
/** @return true if *this owns an array, false otherwise. */
NODISCARD FORCEINLINE constexpr bool IsValid() const { return Get() != nullptr; }
@ -631,7 +632,7 @@ private:
NAMESPACE_PRIVATE::TUniqueStorage<T, E> Storage;
template <typename OtherT, CInvocable<TRemoveExtent<OtherT>*> OtherE> requires (CObject<OtherT> && !CBoundedArray<OtherT> && !CRValueReference<OtherE>)
template <typename OtherT, CInvocable<TRemoveExtent<OtherT>*> OtherE> requires (CObject<OtherT> && !CBoundedArray<OtherT> && (CDestructible<OtherE> || CLValueReference<OtherE>))
friend class TUniquePtr;
};