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Diffstat (limited to 'source/10-common/RcPtr.hpp')
-rw-r--r-- | source/10-common/RcPtr.hpp | 120 |
1 files changed, 0 insertions, 120 deletions
diff --git a/source/10-common/RcPtr.hpp b/source/10-common/RcPtr.hpp deleted file mode 100644 index e3e420e..0000000 --- a/source/10-common/RcPtr.hpp +++ /dev/null @@ -1,120 +0,0 @@ -#pragma once - -#include "Macros.hpp" -#include "TypeTraits.hpp" - -#include <cstddef> -#include <cstdint> -#include <optional> -#include <type_traits> - -class RefCounted { -public: - // DO NOT MODIFY this field, unless explicitly documented the use - uint32_t refCount = 0; - uint32_t weakCount = 0; // TODO implement -}; - -template <typename T, typename TDeleter = DefaultDeleter<T>> -class RcPtr : TDeleter { -private: - static_assert(std::is_base_of_v<RefCounted, T>); - T* mPtr; - -public: - RcPtr() - : mPtr{ nullptr } { - } - - explicit RcPtr(T* ptr) - : mPtr{ ptr } { - if (ptr) { - ++ptr->RefCounted::refCount; - } - } - - ~RcPtr() { - CleanUp(); - } - - void Attach(T* ptr) { - CleanUp(); - mPtr = ptr; - if (ptr) { - ++ptr->RefCounted::refCount; - } - } - - void Detatch() { - CleanUp(); - mPtr = nullptr; - } - - RcPtr(const RcPtr& that) - : mPtr{ that.mPtr } { - if (mPtr) { - ++mPtr->RefCounted::refCount; - } - } - - RcPtr& operator=(const RcPtr& that) { - CleanUp(); - mPtr = that.mPtr; - if (mPtr) { - ++mPtr->RefCounted::refCount; - } - return *this; - } - - RcPtr(RcPtr&& that) - : mPtr{ that.mPtr } { - that.mPtr = nullptr; - } - - RcPtr& operator=(RcPtr&& that) { - CleanUp(); - mPtr = that.mPtr; - that.mPtr = nullptr; - return *this; - } - - template <typename TBase> - requires std::is_base_of_v<TBase, T> - operator RcPtr<TBase>() const { - return RcPtr<TBase>(mPtr); - } - - bool operator==(std::nullptr_t ptr) const { - return mPtr == nullptr; - } - - bool operator==(const T* ptr) const { - return mPtr == ptr; - } - - bool operator==(T* ptr) const { - return mPtr == ptr; - } - - template <typename TThat> - bool operator==(const RcPtr<TThat>& ptr) const { - return mPtr == ptr.Get(); - } - - T* Get() const { - return mPtr; - } - - T& operator*() const { return *mPtr; } - T* operator->() const { return mPtr; } - -private: - void CleanUp() { - if (mPtr) { - --mPtr->RefCounted::refCount; - if (mPtr->RefCounted::refCount == 0) { - TDeleter::operator()(mPtr); - } - } - } -}; |