finally.h

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#pragma once

#include <functional>
#include "memory.h"

BEGIN_NAMESPACE_MEMORY

class Finally
{
public:
    Finally() = delete;
    Finally(const Finally& other) = delete;
    Finally& operator=(const Finally&) = delete;

    explicit Finally(std::function<void()> finalizer)
        : finalizer(std::move(finalizer))
    {
    }

    ~Finally()
    {
        if (finalizer)
            finalizer();
    }

private:
    std::function<void()> finalizer;
};

END_NAMESPACE_MEMORY