/*
 *	aegis - project change supervisor
 *	Copyright (C) 1994 Peter Miller.
 *	All rights reserved.
 *
 *	This program 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 2 of the License, or
 *	(at your option) any later version.
 *
 *	This program 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 this program; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: functions to impliment the builtin eject function
 */

#include <aer/expr.h>
#include <aer/func/eject.h>
#include <aer/func/print.h>
#include <aer/value/void.h>
#include <col.h>
#include <error.h> /* for assert */

static int
valid(rpt_expr_ty *ep)
{
    return (ep->nchild == 0);
}


static rpt_value_ty *
run(rpt_expr_ty *ep, size_t argc, rpt_value_ty **argv)
{
    assert(rpt_func_print__colp);
    col_eject(rpt_func_print__colp);
    return rpt_value_void();
}


rpt_func_ty rpt_func_eject =
{
    "eject",
    0, /* not optimizable */
    valid,
    run
};
