ccb@204: /*
msousa@267:  *  matiec - a compiler for the programming languages defined in IEC 61131-3
ccb@204:  *
msousa@267:  *  Copyright (C) 2009-2011  Mario de Sousa (msousa@fe.up.pt)
Edouard@279:  *  Copyright (C) 2007-2011  Laurent Bessard and Edouard Tisserant
ccb@204:  *
msousa@267:  *  This program is free software: you can redistribute it and/or modify
msousa@267:  *  it under the terms of the GNU General Public License as published by
msousa@267:  *  the Free Software Foundation, either version 3 of the License, or
msousa@267:  *  (at your option) any later version.
msousa@267:  *
msousa@267:  *  This program is distributed in the hope that it will be useful,
msousa@267:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
msousa@267:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
msousa@267:  *  GNU General Public License for more details.
msousa@267:  *
msousa@267:  *  You should have received a copy of the GNU General Public License
msousa@267:  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
msousa@267:  *
ccb@204:  *
ccb@204:  * This code is made available on the understanding that it will not be
ccb@204:  * used in safety-critical situations without a full and competent review.
ccb@204:  */
ccb@204: 
ccb@204: /*
msousa@267:  * An IEC 61131-3 compiler.
ccb@204:  *
ccb@204:  * Based on the
msousa@267:  * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
ccb@204:  *
ccb@204:  */
ccb@204: 
ccb@204: 
ccb@204: // #include <stdio.h>  /* required for NULL */
ccb@204: #include <string>
ccb@204: #include <iostream>
ccb@204: #include <sstream>
ccb@204: #include <typeinfo>
ccb@204: #include <list>
ccb@204: #include <strings.h>
ccb@204: 
ccb@204: #include "../util/symtable.hh"
ccb@204: #include "../util/dsymtable.hh"
ccb@204: #include "../absyntax/visitor.hh"
ccb@204: 
ccb@204: #include "visit_expression_type.hh"
ccb@204: 
ccb@204: 
ccb@204: int stage3(symbol_c *tree_root);
ccb@204: int type_safety(symbol_c *tree_root);