hash_include.h

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#ifndef HASH_INCLUDE_H
#define HASH_INCLUDE_H
#pragma once
/***************************************************************************
 *   Copyright (C) 2007-2013 Mike Kinghan, imk@burroingroingjoing.com      *
 *   All rights reserved.                                                  *
 *                                                                         *
 *   Contributed originally by Mike Kinghan, imk@burroingroingjoing.com    *
 *                                                                         *
 *   Redistribution and use in source and binary forms, with or without    *
 *   modification, are permitted provided that the following conditions    *
 *   are met:                                                              *
 *                                                                         *
 *   Redistributions of source code must retain the above copyright        *
 *   notice, this list of conditions and the following disclaimer.         *
 *                                                                         *
 *   Redistributions in binary form must reproduce the above copyright     *
 *   notice, this list of conditions and the following disclaimer in the   *
 *   documentation and/or other materials provided with the distribution.  *
 *                                                                         *
 *   Neither the name of Mike Kinghan nor the names of its contributors    *
 *   may be used to endorse or promote products derived from this software *
 *   without specific prior written permission.                            *
 *                                                                         *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS   *
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT     *
 *   LIMITED TO, THE IMPLIED WARRANTIES OF  MERCHANTABILITY AND FITNESS    *
 *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE        *
 *   COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,   *
 *   INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,  *
 *   BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS *
 *   OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED    *
 *   AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,*
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 *   DAMAGE.                                                               *
 *                                                                         *
 **************************************************************************/
#include "prohibit.h"
#include "reference.h"
#include "directive.h"

struct reference;

struct hash_include : private no_copy {

    hash_include() = delete;

        explicit hash_include(std::string const & arg)
        : _directive(arg) {}

        explicit hash_include(chewer<parse_buffer> & chew)
        : _directive(read(chew)) {}


        std::shared_ptr<reference> symbolic_argument() const {
                return _ref;
        }

        std::string filename() const {
                return  _ref ? _ref->expansion() : _directive.argument();
        }


        bool system_header() const {
                return filename()[0] == '<';
        }

        bool local_header() const {
                return filename()[0] == '\"';
        }

        bool valid() const;


        void report();

private:

        std::string read(chewer<parse_buffer> & chew);

        std::shared_ptr<reference> _ref;
        directive<HASH_INCLUDE> _directive;

};

#endif /* EOF*/