GNU bug report logs - #70784
Abolish string resizing

Previous Next

Full log

Message #23 received at 70784 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Mattias Engdegård <mattias.engdegard <at> gmail.com>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 70784 <at> debbugs.gnu.org
Subject: Re: bug#70784: Abolish string resizing
Date: Sun, 05 May 2024 14:09:10 -0400

> That's fine, but a warning might help in emacs-30 to prepare for making
> resizing an error in emacs-31.
> Here's how that would work: the first 5 times (say), emit a warning like
>
>  Warning: `aset' on a multibyte string with char value #x2022 will become an error in Emacs 31
>
> followed by a truncated stack trace, just enough to help the user (or
> someone helping out) see what package is responsible.

Similar to what I do in `track-changes.el` when we detect a missing
call to `after/before-change-functions`?  I like that.
If the warning is too annoying, we could do like I did there, i.e. only
emit the warning when running in a non-release Emacs (i.e. when
`emacs-version` has 2 dots), and offer a variable to control whether to
emit the warning or not.


        Stefan

Previous Next

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