root/tlate/lit.hh

/*  This file is part of Alue, the multiprotocol Internet discussion daemon

    Copyright © 2009 Antti-Juhani Kaijanaho

    Alue is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Alue is distributed in the hope that it will be useful, but
    WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Alue.  If not, see <http://www.gnu.org/licenses/>.

 */

#ifndef GUARD_TLATE_LIT_HH
#define GUARD_TLATE_LIT_HH

#include "expr.hh"
#include "scanner.hh"

namespace tlate
{
        class lit : public expr
        {
                std::string val;
        public:
                typedef boost::shared_ptr<lit> ptr;

                explicit lit(std::string val,
                             std::string fname, int line) 
                        : expr(fname, line)
                        , val(val)
                        {}

                value::const_ptr eval_(overriding_structured_value::ptr) {
                        value::ptr rv(new string_value(val));
                        return rv;
                }
                std::set<std::string> fvs() const {
                        return std::set<std::string>();
                }
        };
}

#endif /* GUARD_TLATE_LIT_HH */