Correctly identify errors when parsing erroneous code (make sure flex goes back to INITIAL state when code contains errors that do not allow determining whether ST or IL is being parsed)
/*
* 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 */