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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: Markus Triska <triska@metalevel.at>,
	35005@debbugs.gnu.org, emacs-devel@gnu.org
Subject: bug#35005: 27.0.50; Fontification unexpectedly works with anonymous faces
Date: Thu, 31 Oct 2019 16:38:38 -0400	[thread overview]
Message-ID: <jwv7e4khcyb.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87o8xw6d61.fsf@gnus.org> (Lars Ingebrigtsen's message of "Thu, 31 Oct 2019 18:24:38 +0100")

> I'm not sure whether this was ever brought up on emacs-devel?  I
> wondered about that restriction myself -- I could see why it might be an
> issue (some parts of the font locking machinery checking for whether an
> element is a list and interpreting is as something other than a face),
> but it would be nice if this worked with anonymous faces.
>
> Does anybody know what the manual is referring to here, or whether it's
> an outdated restriction that has gone away?

AFAIK anonymous faces work fine in font-lock.  They can be a bit more
delicate to us because many places that accept faces also accept lists
(either of faces or of other things) but in general there's no real
restriction that I know of.

So I think the "do not accept" part is not true (any more?), but it's
still the case that you're generally better off using named faces
when possible.


        Stefan






  reply	other threads:[~2019-10-31 20:38 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <m25zs54mof.fsf@metalevel.at>
     [not found] ` <83r2arj7rv.fsf@gnu.org>
2019-10-31 17:24   ` bug#35005: 27.0.50; Fontification unexpectedly works with anonymous faces Lars Ingebrigtsen
2019-10-31 20:38     ` Stefan Monnier [this message]
2019-11-01 13:13       ` Lars Ingebrigtsen
2019-11-02  9:10         ` Markus Triska
2019-11-02 15:07           ` Lars Ingebrigtsen
2019-11-09 17:43             ` Markus Triska
2019-11-09 18:01               ` Stefan Monnier
2019-11-09 20:02                 ` Lars Ingebrigtsen
2019-11-09 21:02                   ` Markus Triska
2019-11-09 21:10                     ` Stefan Monnier
2019-11-09 21:29                       ` Markus Triska
2019-11-10  1:52                     ` Drew Adams
2019-10-31 21:09     ` Markus Triska

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