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


From: Stefan Monnier
Subject: Re: bug-reference-prog-mode slows down CC Mode's scrolling by ~7%
Date: Fri, 03 Sep 2021 08:30:28 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

> More importantly, this cannot hide in a comment, it must be clearly
> documented, both in doc strings and in the ELisp manual.  (Assuming
> this is the change we will go with, of course.)

I don't understand why you think so.  It's a detail that should be
purely internal to jit-lock.el (and which should have no impact other
than in terms of performance).

E.g. it shouldn't affect those people writing packages which rely on
jit-lock (it doesn't change the rules of what to return in
`jit-lock-bounds`, for instance).


        Stefan




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