From: Stefan Monnier <monnier@iro.umontreal.ca>
To: emacs-devel@gnu.org
Subject: Re: New hook before-region-change-functions wanted
Date: Sat, 09 Sep 2017 09:46:11 -0400 [thread overview]
Message-ID: <jwvr2vgf0ks.fsf-monnier+gmane.emacs.devel@gnu.org> (raw)
In-Reply-To: 105d75ed-0c98-8b58-123e-bfab34aebc3f@yandex.ru
>> The mechanism will also work a little faster with the new hook than
>> without it, given that changes of restriction are more rarely
>> effected than syntax-ppss is called.
> I don't imagine the performance difference will be in any way
> noticeable. It's just one "if".
Furthermore, this `if` will avoid two cache switches when
a save-restriction+widen happens between two syntax-ppss calls.
All in all, I think both approaches would work equally well,
Stefan
next prev parent reply other threads:[~2017-09-09 13:46 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-08 14:46 New hook before-region-change-functions wanted Alan Mackenzie
2017-09-08 15:07 ` John Wiegley
2017-09-08 15:10 ` Eli Zaretskii
2017-09-08 15:12 ` Alan Mackenzie
2017-09-08 20:47 ` Dmitry Gutov
2017-09-09 13:46 ` Stefan Monnier [this message]
2017-09-08 22:22 ` Richard Stallman
2017-09-09 8:33 ` Alan Mackenzie
2017-09-10 2:44 ` Richard Stallman
2017-09-10 7:37 ` Alan Mackenzie
2017-09-11 1:17 ` Richard Stallman
2017-09-11 16:45 ` Alan Mackenzie
2017-09-12 15:46 ` Andreas Röhler
2017-09-09 13:44 ` Stefan Monnier
2017-09-10 18:53 ` Alan Mackenzie
2017-09-10 22:21 ` Stefan Monnier
2017-09-10 23:02 ` Drew Adams
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