GNU bug report logs - #36497
pop-to-buffer + quit-window negates with-current-buffer

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Stefan Kangas <stefan <at> marxist.se>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#36497: closed (pop-to-buffer + quit-window negates
 with-current-buffer)
Date: Thu, 04 Jul 2019 19:35:02 +0000

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Your message dated Thu, 4 Jul 2019 21:33:54 +0200
with message-id <CADwFkmkV+UvMWNsEyNqFJRUyC3YK=KHJ8c0q4ZsYPhLr+m4+Qw <at> mail.gmail.com>
and subject line Re: bug#36497: pop-to-buffer + quit-window negates with-current-buffer
has caused the debbugs.gnu.org bug report #36497,
regarding pop-to-buffer + quit-window negates with-current-buffer
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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36497: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=36497
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From: Stefan Kangas <stefan <at> marxist.se>
To: bug-gnu-emacs <at> gnu.org
Subject: pop-to-buffer + quit-window negates with-current-buffer
Date: Thu, 4 Jul 2019 14:22:28 +0200

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Steps to reproduce:

0. Run emacs -Q
1. Evaluate the following in *scratch* buffer:

(with-current-buffer (get-buffer-create "foo")
  (pop-to-buffer (get-buffer-create "bar"))
  (quit-window)
  (current-buffer))

Result:
#<buffer *scratch*>

Expected result:
#<buffer foo>

Please find attached also a suggested test case for this bug.

In GNU Emacs 27.0.50 (build 3, x86_64-apple-darwin15.6.0, NS
appkit-1404.47 Version 10.11.6 (Build 15G22010))
 of 2019-07-04 built on Stefans-MBP
Repository revision: 5b48dab412c61980bca63a67a5d548d07e56b404
Repository branch: master
Windowing system distributor 'Apple', version 10.3.1404
System Description:  Mac OS X 10.11.6

[with-current-buffer-test.diff (application/octet-stream, attachment)]

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From: Stefan Kangas <stefan <at> marxist.se>
To: martin rudalics <rudalics <at> gmx.at>
Cc: 36497-done <at> debbugs.gnu.org
Subject: Re: bug#36497: pop-to-buffer + quit-window negates with-current-buffer
Date: Thu, 4 Jul 2019 21:33:54 +0200

martin rudalics <rudalics <at> gmx.at> writes:
> Both 'pop-to-buffer' and 'quit-window' may call 'select-window' which
> implicitly makes that window's buffer current.  In the case at hand,
> 'quit-window' deletes the window of *bar* since it didn't exist
> before, selects the window selected before 'pop-to-buffer' was called
> and makes that window's buffer current.  So the current behavior is
> the expected one.

Thanks for the detailed explanation -- that makes sense.

I'm closing the bug report.  Sorry about the noise.

Thanks,
Stefan Kangas

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