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bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time
From: |
Eli Zaretskii |
Subject: |
bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time |
Date: |
Thu, 23 Apr 2015 20:03:11 +0300 |
> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: tsdh@gnu.org, acm@muc.de, 20404@debbugs.gnu.org
> Date: Thu, 23 Apr 2015 12:23:02 -0400
>
> >> What was it? That input-pending-p returns nil even though there are
> >> lots of pending events (because they haven't been processed enough for
> >> Emacs to realize they're there)? Could you make a bug report about this
> >> issue, describing under which circumstances this happens? Or do we have
> >> one already?
> > Maybe we are not talking about the same thing. I meant these
> > messages:
> > http://lists.gnu.org/archive/html/emacs-devel/2014-10/msg00705.html
>
> This message of yours seems to be talking about the problem I'm
> referring to above. At least, the way I read it, it seems to say that
> `input-pending-p' can return nil even if there is pending input
> (because that pending input is still in the system's input queue).
> If that's the case, we should have a bug report about that.
>
> > http://lists.gnu.org/archive/html/emacs-devel/2014-10/msg01039.html
> > http://lists.gnu.org/archive/html/emacs-devel/2014-10/msg01055.html
>
> These talk about something else, which is partly outdated.
>
> > I don't see the special case of zero discussed back there, so perhaps
> > this is a different problem.
>
> That's because the code has changed since. Now redisplay (which happens
> after running a command) is skipped based on the value of
> `input-pending-p' at the beginning of the *command*, rather than based
> on its value at the beginning of redisplay. And jit-lock.el has been
> changed to use (not (input-pending-p)), but only if jit-lock-defer-time
> is 0, so the special case for 0 is new.
FWIW, when I set jit-lock-defer-time to zero and lean on the PageDown
key, I see somewhat clunky scrolling with no fontifications, until I
release the key.
But fontification inside the scrolling code itself still happens, I
think.
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, (continued)
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Tassilo Horn, 2015/04/22
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Eli Zaretskii, 2015/04/22
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Tassilo Horn, 2015/04/23
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Eli Zaretskii, 2015/04/23
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Stefan Monnier, 2015/04/23
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Eli Zaretskii, 2015/04/23
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Stefan Monnier, 2015/04/23
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time,
Eli Zaretskii <=
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Stefan Monnier, 2015/04/23
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Eli Zaretskii, 2015/04/23
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Stefan Monnier, 2015/04/23
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Eli Zaretskii, 2015/04/24
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Stefan Monnier, 2015/04/24
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Eli Zaretskii, 2015/04/24
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Stefan Monnier, 2015/04/24
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Tassilo Horn, 2015/04/23
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Eli Zaretskii, 2015/04/23
- bug#20404: 25.0.50; Sometimes no fontification with jit-lock-defer-time, Stefan Monnier, 2015/04/23