GNU bug report logs - #51368
29.0.50; `cl-case' should error on incorrect use

Previous Next

Package: emacs;

Reported by: Philipp Stephani <p.stephani2 <at> gmail.com>

Date: Sun, 24 Oct 2021 07:53:01 UTC

Severity: normal

Tags: moreinfo

Found in version 29.0.50

Done: Stefan Kangas <stefankangas <at> gmail.com>

Bug is archived. No further changes may be made.

Full log


Message #8 received at 51368 <at> debbugs.gnu.org (full text, mbox):

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Philipp Stephani <p.stephani2 <at> gmail.com>
Cc: 51368 <at> debbugs.gnu.org
Subject: Re: bug#51368: 29.0.50; `cl-case' should error on incorrect use
Date: Sun, 24 Oct 2021 10:16:07 +0200
On Okt 24 2021, Philipp Stephani wrote:

> This form demonstrates a few incorrect uses of `cl-case':
>
> (cl-case a
>   (nil 0)   ; doesn't match anything
>   (t 1)     ; matches everything, but too early
>   ('foo 2)) ; matches `quote' in addition to `foo'
>
> It would be nice if `cl-case' would signal an error or at least warn
> about these at macroexpansion time, since they are somewhat subtle and
> easy to get wrong.

clisp errors out on the misplaced `t' clause, but is otherwise silent.

Andreas.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."




This bug report was last modified 1 year and 236 days ago.

Previous Next


GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.