ScopeGuard.hpp

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#ifndef ESTD_SCOPEGUARD_HPP_
#define ESTD_SCOPEGUARD_HPP_

#include <utility>

namespace estd
{

template<typename Function>
class ScopeGuard
{
public:

    constexpr explicit ScopeGuard(Function&& function) noexcept :
            function_{std::move(function)},
            released_{}
    {

    }

    ScopeGuard(ScopeGuard&& other) noexcept :
            function_(std::move(other.function_)),
            released_{other.released_}
    {
        other.release();
    }

    ~ScopeGuard() noexcept
    {
        if (released_ == false)
            function_();
    }

    void release() noexcept
    {
        released_ = true;
    }

    ScopeGuard(const ScopeGuard&) = delete;
    ScopeGuard& operator=(const ScopeGuard&) = delete;
    ScopeGuard& operator=(ScopeGuard&&) = delete;

private:

    Function function_;

    bool released_;
};

template <typename Function>
ScopeGuard<Function> makeScopeGuard(Function&& function) noexcept
{
    return ScopeGuard<Function>{std::move(function)};
}

}   // namespace estd

#endif  // ESTD_SCOPEGUARD_HPP_