GNU bug report logs - #20066
24.4; should-error and cl-assert

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Package: emacs;

Reported by: Leo Liu <sdl.web <at> gmail.com>

Date: Mon, 9 Mar 2015 08:07:02 UTC

Severity: normal

Found in version 24.4

Done: Leo Liu <sdl.web <at> gmail.com>

Bug is archived. No further changes may be made.

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Message #27 received at 20066-done <at> debbugs.gnu.org (full text, mbox):

From: Leo Liu <sdl.web <at> gmail.com>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 20066-done <at> debbugs.gnu.org
Subject: Re: bug#20066: 24.4; should-error and cl-assert
Date: Wed, 08 Apr 2015 12:15:38 +0800

On 2015-04-08 10:05 +0800, Stefan Monnier wrote:
> I think test 2 is incorrect.  It assumes that when cl-assert fails it
> reacts by throwing a "normal" signal that can be caught like any other.
> This is untrue for example when we decide to compile-away the assertions
> (depending on speed ans safety settings).
>
> cl-assert should be used to check impossible situations and an assertion
> failure is just supposed to bring it to the user's attention to help
> debug the code.  It is not meant to be caught&handled like a normal
> signal.

OK, that makes sense.

Leo
This bug report was last modified 10 years and 50 days ago.

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