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Diffstat (limited to 'src/kernel/NeKit/Ref.h')
| -rw-r--r-- | src/kernel/NeKit/Ref.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/kernel/NeKit/Ref.h b/src/kernel/NeKit/Ref.h new file mode 100644 index 00000000..dac701e0 --- /dev/null +++ b/src/kernel/NeKit/Ref.h @@ -0,0 +1,77 @@ + +/* ======================================== + + Copyright (C) 2024-2025, Amlal El Mahrouss, licensed under the Apache 2.0 license. + +======================================== */ + +#ifndef _NEKIT_REF_H_ +#define _NEKIT_REF_H_ + +#include <CompilerKit/CompilerKit.h> +#include <KernelKit/HeapMgr.h> +#include <NeKit/Defines.h> +#include <NeKit/KernelPanic.h> + +namespace Kernel { +/// =========================================================== /// +/// @brief Reference wrapper class. /// +/// =========================================================== /// +template <typename T> +class Ref final { + public: + explicit Ref() = default; + ~Ref() = default; + + public: + Ref(T* cls) : fClass(*cls) {} + Ref(T cls) : fClass(cls) {} + + Ref& operator=(T ref) { + fClass = ref; + return *this; + } + + NE_COPY_DEFAULT(Ref) + + public: + T operator->() const { return fClass; } + + T& Leak() noexcept { return fClass; } + + T& TryLeak() noexcept { return fClass; } + + T operator*() { return fClass; } + + operator bool() noexcept { return true; } + + private: + T fClass; +}; + +template <typename T> +class NonNullRef final { + public: + NonNullRef() = delete; + NonNullRef(nullPtr) = delete; + + NonNullRef(T* ref) : fRef(ref) { MUST_PASS(ref); } + NonNullRef(Ref<T> ref) : fRef(ref) { MUST_PASS(ref); } + + Ref<T>& operator->() { + MUST_PASS(fRef); + return fRef; + } + + NonNullRef& operator=(const NonNullRef<T>& ref) = delete; + NonNullRef(const NonNullRef<T>& ref) = default; + + private: + Ref<T> fRef{}; +}; + +using RefAny = Ref<Any>; +using NonNullRefAny = NonNullRef<Any>; +} // namespace Kernel + +#endif // ifndef _NEKIT_REF_H_ |
