revert commits improved performance of some extensible Standard Functions (ADD, MUL, AND, OR, XOR)
Following commits are reverted:
mjsousa 0b275a2 improve performance of some extensible Standard Functions (ADD, MUL, AND, OR, XOR) -- increase hardcoded limit to 499
mjsousa 2228799 improve performance of some extensible Standard Functions (ADD, MUL, AND, OR, XOR) -- Add comments!!
mjsousa ce81fa6 improve performance of some extensible Standard Functions (ADD, MUL, AND, OR, XOR)"
The reason is that they cause regression in some cases (if function is
used as argument for function block, for example) and this is not
fixed for a long time.
/*
* 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 */