Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: Alan Mackenzie <acm@muc.de>,  emacs-devel@gnu.org
> Date: Fri, 03 Sep 2021 08:19:48 -0400
> 
> > Bother: this is not future-proof, and certainly isn't scalable.  If we
> > are changing the protocol, can we instead come up with a more scalable
> > change, so that functions won't "fight" in the future who gets to be
> > "the first"?
> 
> The change I proposed (I haven't had time to look at Alan's patch yet,
> but IIUC it does what I proposed) does not change the protocol at all.
> It just makes jit-lock use the information available in a slightly more
> efficient way.

Which change is that, and how does it handle the issue at hand?

> And while the number of packages using jit-lock tends to grow over time,
> it's a *very* slow growth, so I think scaling is not
> a significant concern.

Famous last words.