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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Vitalie Spinu <spinuvit@gmail.com>
Cc: Andreas Matthias <andreas.matthias@gmail.com>,
	19511-done@debbugs.gnu.org
Subject: bug#19511: 25.0.50; Failed assertions in redisplay() code. (dispnew.c:1405; xdisp.c:17524)
Date: Mon, 05 Jan 2015 12:53:54 -0500	[thread overview]
Message-ID: <jwvoaqd9kuw.fsf-monnier+emacsbugs@gnu.org> (raw)
In-Reply-To: <87y4phupt5.fsf@gmail.com> (Vitalie Spinu's message of "Mon, 05 Jan 2015 08:59:02 -0800")

> Removing it doesn't change the fact that buffers are switched
> (with-current-buffer ...) inside font-lock-fontify-region-function.

with-current-buffer is basically equivalent to something like

  (let ((current-buffer ..)) ...)

[ tho implemented differently for technical reasons.  ]
So it doesn't have any undesirable interactions with the redisplay code.

> Would it be enough to remove `bury-buffer` call to get back the
> optimization? What are other elisp functions that can potentially
> invalidate window_end?

Any function which changes which buffer is being displayed in
a particular window.


        Stefan





  reply	other threads:[~2015-01-05 17:53 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-04 22:27 bug#19511: 25.0.50; Failed assertions in redisplay() code. (dispnew.c:1405; xdisp.c:17524) Andreas Matthias
2015-01-05 15:58 ` Eli Zaretskii
2015-01-05 16:59   ` Vitalie Spinu
2015-01-05 17:53     ` Stefan Monnier [this message]
2015-01-05 18:31       ` Eli Zaretskii
2015-01-05 18:24     ` Eli Zaretskii
2015-01-05 18:10   ` Andreas Matthias
2015-01-05 18:36     ` Eli Zaretskii
2015-01-05 18:41       ` Vitalie Spinu

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