| (* M2Check.def perform rigerous type checking for fully declared symbols. |
| |
| Copyright (C) 2020-2023 Free Software Foundation, Inc. |
| Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>. |
| |
| This file is part of GNU Modula-2. |
| |
| GNU Modula-2 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, or (at your option) |
| any later version. |
| |
| GNU Modula-2 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 GNU Modula-2; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. *) |
| |
| DEFINITION MODULE M2Check ; |
| |
| (* |
| Title : M2Check |
| Author : Gaius Mulley |
| System : GNU Modula-2 |
| Date : Fri Mar 6 15:32:10 2020 |
| Revision : $Version$ |
| Description: provides a module to check the symbol type compatibility. |
| It assumes that the declaration of all dependants |
| is complete. |
| *) |
| |
| |
| (* |
| ParameterTypeCompatible - returns TRUE if the nth procedure parameter formal |
| is compatible with actual. If the string is empty then |
| no error is issued. |
| *) |
| |
| PROCEDURE ParameterTypeCompatible (token: CARDINAL; format: ARRAY OF CHAR; |
| procedure, formal, actual, nth: CARDINAL; |
| isvar: BOOLEAN) : BOOLEAN ; |
| |
| |
| (* |
| AssignmentTypeCompatible - returns TRUE if the des and the expr are assignment compatible. |
| If the string is empty then no error is issued. |
| *) |
| |
| PROCEDURE AssignmentTypeCompatible (token: CARDINAL; format: ARRAY OF CHAR; |
| des, expr: CARDINAL) : BOOLEAN ; |
| |
| |
| (* |
| ExpressionTypeCompatible - returns TRUE if the expressions, left and right, |
| are expression compatible. |
| If the string is empty then no error is issued. |
| *) |
| |
| PROCEDURE ExpressionTypeCompatible (token: CARDINAL; format: ARRAY OF CHAR; |
| left, right: CARDINAL; |
| strict, isin: BOOLEAN) : BOOLEAN ; |
| |
| |
| END M2Check. |