Deliver/include/Log4CPP/Common.Include/ListOfPtr.tlh

#pragma once

#include <list>
#include <memory>


//-----------------------------------------------------------------------------
//		ListOfPtr
//-----------------------------------------------------------------------------

template <typename T> class ListOfPtr : public std::list <std::unique_ptr <T>>
{
	using inherited = std::list <std::unique_ptr <T>>;

public:
	ListOfPtr ()
	{
	}

	ListOfPtr (ListOfPtr && from) : inherited (std::move (from))
	{
	}

	ListOfPtr (const ListOfPtr & from) = delete;

	~ListOfPtr ()
	{
		__noop;
	}

	ListOfPtr & operator = (ListOfPtr && from)
	{
		inherited::operator = (std::move (from));
		return (*this);
	}

public:
	void Attach (T * value)
	{
		std::unique_ptr <T> ptr (value);
		inherited::push_back (std::move (ptr));
	}

	T * Detach (T * value)
	{
		auto iter = std::find_if (this->begin (), this->end (), [ value] (const auto & to)
		{
			return to.get () == value;
		});

		std::unique_ptr <T> rc;
		if (iter == this->cend ())
			return nullptr;
		auto to = (*iter).release ();
		this->erase (iter);
		return to;
	}

	void AttachFirst (T * value)
	{
		std::unique_ptr <T> ptr (value);
		push_front (std::move (ptr));
	}

	T * GetFirst () const
	{
		return inherited::front ().get ();
	}

	void RemoveFirst ()
	{
		inherited::pop_front ();
	}

	T * GetLast () const
	{
		return inherited::back ().get ();
	}

	void RemoveLast ()
	{
		inherited::pop_back ();
	}

	bool IsEmpty () const
	{
		return inherited::empty ();
	}

	int  GetSize () const
	{
		return (int) (inherited::size ());
	}

	void Reset ()
	{
		inherited::clear ();
	}
};