terminate_guard.h

/*****************************************************/
/* lean Smart                   (c) Tobias Zirr 2011 */
/*****************************************************/

#ifndef LEAN_SMART_TERMINATE_GUARD
#define LEAN_SMART_TERMINATE_GUARD

#include "../lean.h"
#include "../tags/noncopyable.h"
#include <exception>

namespace lean
{
namespace smart
{

class terminate_guard : public nonassignable
{
private:
    mutable bool m_armed;

public:
    LEAN_INLINE terminate_guard()
        : m_armed(true) { }
    LEAN_INLINE explicit terminate_guard(bool arm)
        : m_armed(arm) { }
    LEAN_INLINE terminate_guard(const terminate_guard &right)
        : m_armed(right.m_armed)
    {
        right.disarm();
    }
    LEAN_INLINE ~terminate_guard() throw()
    {
        if (armed())
        {
            LEAN_ASSERT_DEBUG(false);
            std::unexpected();
        }
    }

    LEAN_INLINE void armed(bool arm) const { m_armed = arm; }
    LEAN_INLINE bool armed() const { return m_armed; }

    LEAN_INLINE void disarm() const { armed(false); }
    LEAN_INLINE void arm() const { armed(true); }
};

} // namespace

using smart::terminate_guard;

} // namespace

#endif