GNU bug report logs - #46573
28.0.50; Error when edebugging setting unbound place

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#46573: closed (28.0.50; Error when edebugging setting unbound
 place)
Date: Fri, 05 Mar 2021 17:41:01 +0000

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Your message dated Fri, 05 Mar 2021 12:39:51 -0500
with message-id <jwveegtebz9.fsf-monnier+emacs <at> gnu.org>
and subject line Re: bug#46573: 28.0.50; Error when edebugging setting unbound place
has caused the debbugs.gnu.org bug report #46573,
regarding 28.0.50; Error when edebugging setting unbound place
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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46573: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=46573
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From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: bug-gnu-emacs <at> gnu.org
Cc: Lars Ingebrigtsen <larsi <at> gnus.org>,
 Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: 28.0.50; Error when edebugging setting unbound place
Date: Tue, 16 Feb 2021 23:32:58 +0100

Hello,

when edebugging something like

  (setf PLACE VALUE)

Edebug stops after PLACE and displays its "binding".  While that would
make some sense for e.g. `cl-callf', in the above situation the behavior
is confusing because when the code is run the binding of PLACE is never
referenced, so this suggests that the code uses the binding of PLACE in
some way which is not the case.

But when PLACE is even unbound (e.g. and unbound variable, or an unbound
eieio-object slot [a totally legitimate case!]), Edebug kicks me out of
the session and raises an error.  Edebug can't be used for such code.
That needs fixing.

TIA,

Michael.

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: michael_heerdegen <at> web.de, gazally <at> runbox.com, larsi <at> gnus.org,
 46573-done <at> debbugs.gnu.org
Subject: Re: bug#46573: 28.0.50; Error when edebugging setting unbound place
Date: Fri, 05 Mar 2021 12:39:51 -0500

> I'm okay with installing this on the emacs-27 branch, but please wait
> for a day to let others comment.

Pushed,


        Stefan

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