1 /*

     2  *  matiec - a compiler for the programming languages defined in IEC 61131-3

     3  *

     4  *  Copyright (C) 2003-2011  Mario de Sousa (msousa@fe.up.pt)

     5  *  Copyright (C) 2012       Manuele Conti (conti.ma@alice.it)

     6  *

     7  *  This program is free software: you can redistribute it and/or modify

     8  *  it under the terms of the GNU General Public License as published by

     9  *  the Free Software Foundation, either version 3 of the License, or

    10  *  (at your option) any later version.

    11  *

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

    13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of

    14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    15  *  GNU General Public License for more details.

    16  *

    17  *  You should have received a copy of the GNU General Public License

    18  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.

    19  *

    20  *

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

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

    23  */

    24 

    25 /*

    26  * An IEC 61131-3 compiler.

    27  *

    28  * Based on the

    29  * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)

    30  *

    31  */

    32 

    33 #include <vector>

    34 

    35 #include "../absyntax_utils/absyntax_utils.hh"

    36 

    37 

    38 class declaration_check_c : public iterator_visitor_c {

    39     int error_count;

    40     int current_display_error_level;

    41     search_base_type_c search_base_type;

    42     list_c *global_var_decls;

    43 

    44 public:

    45     declaration_check_c(symbol_c *ignore);

    46     virtual ~declaration_check_c(void);

    47     int get_error_count();

    48 

    49     void check_global_decl(symbol_c *p_decl);

    50     /******************************************/

    51     /* B 1.4.3 - Declaration & Initialisation */

    52     /******************************************/

    53     void *visit(global_var_declarations_c *symbol);

    54     /********************************/

    55     /* B 1.7 Configuration elements */

    56     /********************************/

    57     void *visit(program_configuration_c *symbol);

    58 };