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bug#16526: 24.3.50; scroll-conservatively & c-mode regression
From: |
martin rudalics |
Subject: |
bug#16526: 24.3.50; scroll-conservatively & c-mode regression |
Date: |
Sat, 25 Jan 2014 17:48:02 +0100 |
>> How should I know? I suppose redisplay_window eventually winds up
>> calling the fontification function and sooner or later the c-code calls
>> back_comment.
>
> Yes, that's what happens. And it cannot be avoided, AFAICS, when
> scroll-conservatively is on.
Well ... so you know why it calls back_comment around the END of the
buffer?
> What I see is that find_defun_start is called many times,
... 530 times as I mentioned earlier ...
> with its
> first argument moving from _end_ of the buffer backwards.
Not monotonously. Sometimes it's called from the same position (for
example 948653 is at least three times on my list) again.
> This
> happens when Emacs needs to redisplay the last portion of the buffer,
> immediately after the call to end-of-buffer.
Hmm ... but the problem is when going to BOB.
> JIT Lock is triggered also when font-lock is turned on after the move
> to end of the buffer. But the difference seems to come from the fact
> that under scroll-conservatively, we examine the buffer a little bit
> above/below the window, when we decide where to put window-start.
And somehow a "current position" is still near the end of the buffer at
that time.
martin
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, martin rudalics, 2014/01/23
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, martin rudalics, 2014/01/24
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, Alan Mackenzie, 2014/01/24
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, Juanma Barranquero, 2014/01/24
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, martin rudalics, 2014/01/25
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, Eli Zaretskii, 2014/01/25
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, martin rudalics, 2014/01/25
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, Eli Zaretskii, 2014/01/25
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression,
martin rudalics <=
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, Eli Zaretskii, 2014/01/25
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, martin rudalics, 2014/01/25
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, Eli Zaretskii, 2014/01/25
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, Eli Zaretskii, 2014/01/25
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, martin rudalics, 2014/01/26
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, Eli Zaretskii, 2014/01/26
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, Alan Mackenzie, 2014/01/26
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, martin rudalics, 2014/01/27
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, Stefan Monnier, 2014/01/27
- bug#16526: 24.3.50; scroll-conservatively & c-mode regression, martin rudalics, 2014/01/27