From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Dmitry Gutov Newsgroups: gmane.emacs.bugs Subject: bug#56682: feature/improved-locked-narrowing 9dee6df39c: Reworked locked narrowing. 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Tue, 31 Jan 2023 08:03:29 -0800 (PST) Content-Language: en-US In-Reply-To: <94821a0ef1ac1dff969e@heytings.org> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:254533 Archived-At: On 31/01/2023 17:17, Gregory Heytings wrote: > >> >> note that a significant part of the redisplay slowdowns wasn't caused >> by font-lock, and thus the removal of locking will not regress those >> performance improvements. >> > > That is correct. > >> >> And for those (potential?) cases where font-lock is a real problem for >> performance, we could stop it from widening using an existing knob. >> > > That is not correct.  There is no knob that can prevent a mode from > widening. Just the existing convention which implores modes not to do that. CC Mode will continue to do what it does, I guess.