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Re: Debouncing slow mode line constructs (was: Emacs design and architec

From: Eli Zaretskii
Subject: Re: Debouncing slow mode line constructs (was: Emacs design and architecture. How about copy-on-write?)
Date: Fri, 22 Sep 2023 16:14:16 +0300

> From: Ihor Radchenko <yantar92@posteo.net>
> Cc: dmitry@gutov.dev, luangruo@yahoo.com, acm@muc.de, incal@dataswamp.org,
>  emacs-devel@gnu.org
> Date: Fri, 22 Sep 2023 13:10:40 +0000
> Eli Zaretskii <eliz@gnu.org> writes:
> > I don't see a reason to do that with this particular kind of problems.
> > We currently don't display anything by default even if Lisp called by
> > redisplay signals an error, we just log that in *Messages*.  Why
> > should these :eval problems we treated differently?
> The aim here is to make users aware that the proposed optimization is
> activated. It does not have to be warning specifically. Might be
> something else visible enough. Warning was just the first thing that
> came to my mind.

They can look at *Messages* and see the warning there, like they do
with any other redisplay problem.

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