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From: Eli Zaretskii <eliz@gnu.org>
To: Philipp Stephani <p.stephani2@gmail.com>
Cc: 21730@debbugs.gnu.org, mwd@md5i.com
Subject: bug#21730: 25.0.50; Random errors in redisplay--pre-redisplay-functions
Date: Wed, 14 Sep 2016 22:23:35 +0300	[thread overview]
Message-ID: <83oa3q70aw.fsf@gnu.org> (raw)
In-Reply-To: <CAArVCkQ3EZY-LJOqcRQ5i-cAF625WKp3Wbhn1pWP9D2N6OV+aA@mail.gmail.com> (message from Philipp Stephani on Wed, 14 Sep 2016 18:43:13 +0000)

> From: Philipp Stephani <p.stephani2@gmail.com>
> Date: Wed, 14 Sep 2016 18:43:13 +0000
> Cc: 21730@debbugs.gnu.org, mwd@md5i.com
> 
>  Since the problem that caused the patch to be reverted was with
>  narrowing, why not simply use
> 
>  (= point (with-current-buffer (window-buffer window) (point-min)))
> 
>  instead of
> 
>  (= point 1)
> 
>  ?
> 
> This has the same issues as described above. There's more code in cursor-sensor--detect that assumes (eq
> (current-buffer) (window-buffer window)), e.g. the form (get-char-property point 'cursor-sensor-functions).
> Therefore (= point (with-current-buffer (window-buffer window) (point-min))) must be the same as (bobp).
> Another mystery is the stack trace entry "run-hook-with-args(cursor-sensor--detect #<window 224 on
> *Group*>)". How can cursor-sensor--detect be the first argument to run-hook-with-args? Shouldn't it always
> be pre-redisplay-functions?

If we want to dig deeper, I think we should first understand why bop
doesn't work.  Is it indeed because the window's buffer is not the
current buffer when the hook is called?





  reply	other threads:[~2016-09-14 19:23 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-22  4:04 bug#21730: 25.0.50; Random errors in redisplay--pre-redisplay-functions Michael Welsh Duggan
2015-10-22 14:40 ` Eli Zaretskii
2015-10-27  4:19   ` Michael Welsh Duggan
2015-10-31 13:07     ` Michael Welsh Duggan
2015-10-31 13:32       ` Eli Zaretskii
2016-09-14 17:01         ` Philipp Stephani
     [not found]         ` <CAArVCkTA5_hxvxszdYX1QWSoG382zg+mW=4U3uhiXmTBcPCSgw@mail.gmail.com>
2016-09-14 17:09           ` Eli Zaretskii
2016-09-14 18:43             ` Philipp Stephani
2016-09-14 19:23               ` Eli Zaretskii [this message]
2016-09-14 19:48                 ` Philipp Stephani
2016-09-15 14:22                   ` Eli Zaretskii
2016-09-14 19:11           ` Philipp Stephani
2016-09-14 19:25             ` Eli Zaretskii
2017-07-25  2:06               ` Sergio Durigan Junior
2017-07-25 14:21                 ` Eli Zaretskii
2017-07-25 23:15                   ` Sergio Durigan Junior

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