MoveTracker.hpp

#pragma once
 
#include <utility>
 
namespace util {

class MoveTracker {
    bool wasMoved_ = false;
 
protected:
    [[nodiscard]] bool
    wasMoved() const noexcept
    {
        return wasMoved_;
    }
 
    MoveTracker() = default;  // should only be used via inheritance
 
public:
    virtual ~MoveTracker() = default;

    MoveTracker(MoveTracker&& other)
    {
        *this = std::move(other);
    }

    MoveTracker&
    operator=(MoveTracker&& other)
    {
        if (this != &other) {
            other.wasMoved_ = true;
            wasMoved_ = false;
        }
 
        return *this;
    }
 
    MoveTracker(MoveTracker const&) = default;
    MoveTracker&
    operator=(MoveTracker const&) = default;
};
 
}  // namespace util