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/*

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

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 *

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 *  Copyright (C) 2003-2012  Mario de Sousa (msousa@fe.up.pt)

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

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 *

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

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

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

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 *  (at your option) any later version.

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 *

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

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

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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

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 *  GNU General Public License for more details.

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 *

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

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

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 *

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 *

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

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

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 */

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/*

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 * An IEC 61131-3 compiler.

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 *

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 * Based on the

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

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 *

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 */

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#include <vector>

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

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class declaration_check_c : public iterator_visitor_c {

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    int error_count;

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    int current_display_error_level;

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    symbol_c *current_pou_decl;

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    symbol_c *current_resource_decl;

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public:

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    declaration_check_c(symbol_c *ignore);

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    virtual ~declaration_check_c(void);

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    int get_error_count();

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    void check_global_decl(symbol_c *p_decl);

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    /*****************************/

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    /* B 1.5.2 - Function Blocks */

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    /*****************************/

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    void *visit(function_block_declaration_c *symbol);

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    /******************************************/

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    /* B 1.5.3 - Declaration & Initialisation */

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    /******************************************/

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    void *visit(program_declaration_c *symbol);

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    /********************************/

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    /* B 1.7 Configuration elements */

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    /********************************/

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    void *visit(configuration_declaration_c *symbol);

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    void *visit(resource_declaration_c      *symbol);

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    void *visit(program_configuration_c     *symbol);

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};