fix SFC timed qualifier (D, L, ...) with variable time (was generating wrong C code)
/*
* matiec - a compiler for the programming languages defined in IEC 61131-3
*
* Copyright (C) 2015 Mario de Sousa (msousa@fe.up.pt)
*
*
* 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)
*
*/
/*
* Case Options Checking:
* - Check whether the options in a case statement are repeated, either directly, or in a range.
* For example:
* case var of
* 1: ... <- OK
* 2: ... <- OK
* 1: ... <- OK (not an error), but produce a warning!
* 0..8: ...<- OK (not an error), but produce a warning!
*/
#include "../absyntax_utils/absyntax_utils.hh"
class case_elements_check_c: public iterator_visitor_c {
private:
bool warning_found;
int error_count;
int current_display_error_level;
std::vector<symbol_c *> case_elements_list;
void check_subr_subr(symbol_c *s1, symbol_c *s2);
void check_subr_symb(symbol_c *s1, symbol_c *s2);
void check_symb_symb(symbol_c *s1, symbol_c *s2);
public:
case_elements_check_c(symbol_c *ignore);
virtual ~case_elements_check_c(void);
int get_error_count();
/***************************************/
/* B.3 - Language ST (Structured Text) */
/***************************************/
/********************/
/* B 3.2 Statements */
/********************/
/********************************/
/* B 3.2.3 Selection Statements */
/********************************/
void *visit(case_statement_c *symbol);
void *visit(case_list_c *symbol);
}; /* case_elements_check_c */