matiec: stage3/case_elements_check.hh@36fb9443b6ea (annotated)

1000 556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	1	/*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	2	* matiec - a compiler for the programming languages defined in IEC 61131-3
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	3	*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	4	* Copyright (C) 2015 Mario de Sousa (msousa@fe.up.pt)
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	5	*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	6	*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	7	* This program is free software: you can redistribute it and/or modify
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	8	* it under the terms of the GNU General Public License as published by
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	9	* the Free Software Foundation, either version 3 of the License, or
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	10	* (at your option) any later version.
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	11	*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	12	* This program is distributed in the hope that it will be useful,
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	15	* GNU General Public License for more details.
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	16	*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	17	* You should have received a copy of the GNU General Public License
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	18	* along with this program. If not, see <http://www.gnu.org/licenses/>.
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	19	*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	20	*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	21	* This code is made available on the understanding that it will not be
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	22	* used in safety-critical situations without a full and competent review.
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	23	*/
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	24
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	25	/*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	26	* An IEC 61131-3 compiler.
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	27	*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	28	* Based on the
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	29	* FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	30	*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	31	*/
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	32
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	33
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	34	/*
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	35	* Case Options Checking:
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	36	* - Check whether the options in a case statement are repeated, either directly, or in a range.
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	37	* For example:
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	38	* case var of
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	39	* 1: ... <- OK
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	40	* 2: ... <- OK
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	41	* 1: ... <- OK (not an error), but produce a warning!
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	42	* 0..8: ...<- OK (not an error), but produce a warning!
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	43	*/
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	44
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	45	#include "../absyntax_utils/absyntax_utils.hh"
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	46
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	47
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	48
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	49	class case_elements_check_c: public iterator_visitor_c {
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	50
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	51	private:
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	52	bool warning_found;
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	53	int error_count;
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	54	int current_display_error_level;
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	55
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	56	std::vector<symbol_c *> case_elements_list;
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	57	void check_subr_subr(symbol_c s1, symbol_c s2);
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	58	void check_subr_symb(symbol_c s1, symbol_c s2);
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	59	void check_symb_symb(symbol_c s1, symbol_c s2);
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	60
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	61
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	62	public:
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	63	case_elements_check_c(symbol_c *ignore);
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	64	virtual ~case_elements_check_c(void);
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	65	int get_error_count();
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	66
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	67	/***************************************/
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	68	/* B.3 - Language ST (Structured Text) */
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	69	/***************************************/
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	70	/********************/
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	71	/* B 3.2 Statements */
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	72	/********************/
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	73	/********************************/
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	74	/* B 3.2.3 Selection Statements */
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	75	/********************************/
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	76	void visit(case_statement_c symbol);
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	77	void visit(case_list_c symbol);
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	78	}; /* case_elements_check_c */
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	79
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	80
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	81
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	82
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	83
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	84
556b74055518 Add check for repeated elements in a CASE statement. Emit warnings (and not errors) if found. mjsousa parents: diff changeset	85

author	mjsousa
	Thu, 02 Jun 2016 11:59:45 +0100
changeset 1020	36fb9443b6ea
parent 1000	556b74055518
permissions	-rw-r--r--