GNU bug report logs - #74964
31.0.50 master; .dir-locals.el vars does not work with changing major mode

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Package: emacs;

Reported by: Yikai Zhao <yikai <at> z1k.dev>

Date: Thu, 19 Dec 2024 07:55:02 UTC

Severity: normal

Found in version 31.0.50

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#74964: closed (31.0.50 master; .dir-locals.el vars does not
 work with changing major mode)
Date: Sun, 05 Jan 2025 15:06:02 +0000
[Message part 1 (text/plain, inline)]
Your message dated Sun, 05 Jan 2025 10:05:06 -0500
with message-id <jwva5c5qp4b.fsf-monnier+emacs <at> gnu.org>
and subject line Re: bug#74964: 31.0.50 master; .dir-locals.el vars does not work with changing major mode
has caused the debbugs.gnu.org bug report #74964,
regarding 31.0.50 master; .dir-locals.el vars does not work with changing major mode
to be marked as done.

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74964: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=74964
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[Message part 2 (message/rfc822, inline)]
From: Yikai Zhao <yikai <at> z1k.dev>
To: bug-gnu-emacs <at> gnu.org
Subject: 31.0.50 master;
 .dir-locals.el vars does not work with changing major mode
Date: Thu, 19 Dec 2024 15:53:58 +0800
How to reproduce:

With following content in /tmp/test/.dir-locals.el:

((nil . ((my/test . "test")))
 (c-mode . ((eval . (when (eq major-mode 'c-mode)
                      (c++-mode))))))
;; I use this code because I want my projects' .h files always opened
in c++ mode

Then open a new file test.c in the folder.

Expected behavior: my/test variable is set.
Actual behavior: my/test variable is not set.

Emacs 29 and 30 does give me the expected result.


[Message part 3 (message/rfc822, inline)]
From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: rpluim <at> gmail.com, Yikai Zhao <yikai <at> z1k.dev>, 74964-done <at> debbugs.gnu.org
Subject: Re: bug#74964: 31.0.50 master; .dir-locals.el vars does not work
 with changing major mode
Date: Sun, 05 Jan 2025 10:05:06 -0500
>> This patch does fix the issue for me. Thanks.

Thank you for confirming!

> Thanks for testing.  Stefan, please install, and thanks.

Closing,


        Stefan



This bug report was last modified 123 days ago.

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