1 /*

     2  * (c) 2009 Catarina da Costa Boucinha

     3  *

     4  * Offered to the public under the terms of the GNU General Public License

     5  * as published by the Free Software Foundation; either version 2 of the

     6  * License, or (at your option) any later version.

     7  *

     8  * This program is distributed in the hope that it will be useful, but

     9  * WITHOUT ANY WARRANTY; without even the implied warranty of

    10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General

    11  * Public License for more details.

    12  *

    13  * This code is made available on the understanding that it will not be

    14  * used in safety-critical situations without a full and competent review.

    15  */

    16 

    17 /*

    18  * An IEC 61131-3 IL and ST compiler.

    19  *

    20  * Based on the

    21  * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2009-04-24)

    22  *

    23  */

    24 

    25 

    26 // #include <stdio.h>  /* required for NULL */

    27 #include <string>

    28 #include <iostream>

    29 #include <sstream>

    30 #include <typeinfo>

    31 #include <list>

    32 #include <strings.h>

    33 

    34 #include "../util/symtable.hh"

    35 #include "../util/dsymtable.hh"

    36 #include "../absyntax/visitor.hh"

    37 

    38 #include "visit_expression_type.hh"

    39 

    40 

    41 int stage3(symbol_c *tree_root);

    42 int type_safety(symbol_c *tree_root);