//          Copyright Dean Michael Berris 2007.
// Distributed under the Boost Software License, Version 1.0.
//    (See accompanying file LICENSE_1_0.txt or copy at
//          http://www.boost.org/LICENSE_1_0.txt)

#ifndef __NETWORK_DETAIL_DIRECTIVE_BASE_HPP__
#define __NETWORK_DETAIL_DIRECTIVE_BASE_HPP__

/** Defines the base type from which all directives inherit
 * to allow friend access to message and other types' internals.
 */
namespace boost { namespace network { namespace detail {

    template <class Tag>
        struct directive_base {
            typedef Tag tag ;
            //explicit directive_base(basic_message<tag> & message_)
            //    : _message(message_)
            protected:
                ~directive_base() 
                { }; // can only be extended

            //    mutable basic_message<tag> & _message;
        };

} // namespace detail

} // namespace network

} // namespace boost

#endif // __NETWORK_DETAIL_DIRECTIVE_BASE_HPP__