construct/include/ircd/mods/import.h

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.

#pragma once
#define HAVE_IRCD_MODS_IMPORT_H

namespace ircd::mods
{
	template<class T> struct import;
}

/// Representation of a symbol in a loaded shared library
///
template<class T>
struct ircd::mods::import
:sym_ptr
{
	template<class... args> auto operator()(args&&... a) const;
	template<class... args> auto operator()(args&&... a);

	const T *operator->() const;
	const T &operator*() const;
	operator const T &() const;

	T *operator->();
	T &operator*();
	operator T &();

	using sym_ptr::sym_ptr;
};

template<class T>
ircd::mods::import<T>::operator T &()
{
	return sym_ptr::operator*<T>();
}

template<class T>
T &
ircd::mods::import<T>::operator*()
{
	return sym_ptr::operator*<T>();
}

template<class T>
T *
ircd::mods::import<T>::operator->()
{
	return sym_ptr::operator-><T>();
}

template<class T>
ircd::mods::import<T>::operator
const T &()
const
{
	return sym_ptr::operator*<T>();
}

template<class T>
const T &
ircd::mods::import<T>::operator*()
const
{
	return sym_ptr::operator*<T>();
}

template<class T>
const T *
ircd::mods::import<T>::operator->()
const
{
	return sym_ptr::operator-><T>();
}

template<class T>
template<class... args>
auto
ircd::mods::import<T>::operator()(args&&... a)
{
	return sym_ptr::operator()<T>(std::forward<args>(a)...);
}

template<class T>
template<class... args>
auto
ircd::mods::import<T>::operator()(args&&... a)
const
{
	return sym_ptr::operator()<T>(std::forward<args>(a)...);
}