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

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From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Gemini Lasswell <gazally <at> runbox.com>, Eli Zaretskii <eliz <at> gnu.org>, Lars Ingebrigtsen <larsi <at> gnus.org>, 46573 <at> debbugs.gnu.org
Subject: bug#46573: 28.0.50; Error when edebugging setting unbound place
Date: Thu, 04 Mar 2021 00:13:36 +0100

Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

> >> I checked older Emacs versions -- (setf foo 'bar) works in Emacs 26.1,
> >> but not in Emacs 27.1.
> > Then we should try fixing it in Emacs 27.2, if that's possible without
> > risky changes.
>
> I plan to install the patch below into `master` to fix this problem, but
> I believe this change is sufficiently safe for the `emacs-27` branch, so
> you agree I'll install it into `emacs-27` instead.

I tried your patch (thanks for working on it) now.  The error is gone,
but in my example

  (setf y 3)

when I step with edebug the thing still stops after the "y" to say the
value is "3", not after the number "3" - that position is omitted.  Is
this intentional?

Thanks,

Michael.

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