conti@656: /*
conti@656:  *  matiec - a compiler for the programming languages defined in IEC 61131-3
conti@656:  *
conti@656:  *  Copyright (C) 2003-2011  Mario de Sousa (msousa@fe.up.pt)
conti@656:  *  Copyright (C) 2012       Manuele Conti (conti.ma@alice.it)
conti@656:  *
conti@656:  *  This program is free software: you can redistribute it and/or modify
conti@656:  *  it under the terms of the GNU General Public License as published by
conti@656:  *  the Free Software Foundation, either version 3 of the License, or
conti@656:  *  (at your option) any later version.
conti@656:  *
conti@656:  *  This program is distributed in the hope that it will be useful,
conti@656:  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
conti@656:  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
conti@656:  *  GNU General Public License for more details.
conti@656:  *
conti@656:  *  You should have received a copy of the GNU General Public License
conti@656:  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
conti@656:  *
conti@656:  *
conti@656:  * This code is made available on the understanding that it will not be
conti@656:  * used in safety-critical situations without a full and competent review.
conti@656:  */
conti@656: 
conti@656: /*
conti@656:  * An IEC 61131-3 compiler.
conti@656:  *
conti@656:  * Based on the
conti@656:  * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
conti@656:  *
conti@656:  */
conti@656: 
conti@656: #include <vector>
conti@656: 
conti@656: #include "../absyntax_utils/absyntax_utils.hh"
conti@656: 
conti@656: 
conti@656: class declaration_check_c : public iterator_visitor_c {
conti@656:     int error_count;
conti@656:     int current_display_error_level;
conti@656:     search_base_type_c search_base_type;
conti@656:     list_c *global_var_decls;
conti@656: 
conti@656: public:
conti@656:     declaration_check_c(symbol_c *ignore);
conti@656:     virtual ~declaration_check_c(void);
conti@656:     int get_error_count();
conti@656: 
conti@656:     void check_global_decl(symbol_c *p_decl);
conti@656:     /******************************************/
conti@656:     /* B 1.4.3 - Declaration & Initialisation */
conti@656:     /******************************************/
conti@656:     void *visit(global_var_declarations_c *symbol);
conti@656:     /********************************/
conti@656:     /* B 1.7 Configuration elements */
conti@656:     /********************************/
conti@656:     void *visit(program_configuration_c *symbol);
conti@656: };