Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!ukc!cam-cl!news
From: pr@cl.cam.ac.uk (Peter Robinson)
Newsgroups: comp.lang.modula3
Subject: Problem with recursive objects
Message-ID: <1991Jan23.103340.9707@cl.cam.ac.uk>
Date: 23 Jan 91 10:33:40 GMT
Sender: news@cl.cam.ac.uk (The news facility)
Organization: U of Cambridge Computer Lab, UK
Lines: 17

The following program:

| MODULE Main;
| 
| TYPE r = r OBJECT METHODS m () END;
| 
| BEGIN
| END Main.

causes the DEC SRC Modula-3 compiler (version 1.5, MIPS/Ultrix system)
to loop indefinitely.  If the type declaration omits the method:

| TYPE r = r OBJECT METHODS END;

then a proper error message about a recursive type declaration is given.

- Peter Robinson.