stage3/array_range_check.hh
author Edouard Tisserant
Tue, 14 Dec 2021 08:48:05 +0100
changeset 1096 fad6e7a818e2
parent 664 199a9f84e64c
permissions -rw-r--r--
Variable forcing now uses limited list and buffer instead of systematical instance tree traversal and in-tree "fvalue" to keep track of forced value for pointed variables (external, located). Pointer swapping is performed when forcing externals and located, with backup being restored when forcing is reset. Match Beremiz commit 93ad018fb602.
/*
 *  matiec - a compiler for the programming languages defined in IEC 61131-3
 *
 *  Copyright (C) 2009-2012  Mario de Sousa (msousa@fe.up.pt)
 *  Copyright (C) 2012       Manuele Conti  (conti.ma@alice.it)
 *
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *
 * This code is made available on the understanding that it will not be
 * used in safety-critical situations without a full and competent review.
 */

/*
 * An IEC 61131-3 compiler.
 *
 * Based on the
 * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
 *
 */

// #include <vector>
#include "../absyntax_utils/absyntax_utils.hh"
// #include "datatype_functions.hh"



class array_range_check_c: public iterator_visitor_c {

  private:
    search_varfb_instance_type_c *search_varfb_instance_type;
    int error_count;
    int current_display_error_level;

    void check_dimension_count(array_variable_c *symbol);
    void check_bounds(array_variable_c *symbol);

  public:
    array_range_check_c(symbol_c *ignore);
    virtual ~array_range_check_c(void);
    int get_error_count();

    /*************************/
    /* B.1 - Common elements */
    /*************************/
    /**********************/
    /* B.1.3 - Data types */
    /**********************/
    /********************************/
    /* B 1.3.3 - Derived data types */
    /********************************/
    /* NOTE: we may later want to move the following 2 methods to a visitor that will focus on analysing the data type declarations! */
    void *visit(subrange_c *symbol);
    void *visit(array_initial_elements_c *symbol);
  
    /*********************/
    /* B 1.4 - Variables */
    /*********************/
    /*************************************/
    /* B 1.4.2 - Multi-element variables */
    /*************************************/
    void *visit(array_variable_c *symbol);

    /**************************************/
    /* B 1.5 - Program organisation units */
    /**************************************/
    /***********************/
    /* B 1.5.1 - Functions */
    /***********************/
    void *visit(function_declaration_c *symbol);

    /*****************************/
    /* B 1.5.2 - Function blocks */
    /*****************************/
    void *visit(function_block_declaration_c *symbol);

    /**********************/
    /* B 1.5.3 - Programs */
    /**********************/
    void *visit(program_declaration_c *symbol);

}; /* array_range_check_c */