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(* M2Check.def perform rigerous type checking for fully declared symbols.
Copyright (C) 2020-2025 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.
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