GNU bug report logs - #74934
30.0.92; Unexpected behavior by which-function-mode in erc-mode buffers

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: "J.P." <jp <at> neverwas.me>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#74934: closed (30.0.92; Unexpected behavior by
 which-function-mode in erc-mode buffers)
Date: Sun, 22 Dec 2024 19:53:03 +0000

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Your message dated Sun, 22 Dec 2024 11:51:57 -0800
with message-id <87jzbr7axu.fsf <at> neverwas.me>
and subject line Re: bug#74934: 30.0.92; Unexpected behavior by which-function-mode in erc-mode buffers
has caused the debbugs.gnu.org bug report #74934,
regarding 30.0.92; Unexpected behavior by which-function-mode in erc-mode buffers
to be marked as done.

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


-- 
74934: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=74934
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From: Anush V <j <at> gnu.org>
To: bug-gnu-emacs <at> gnu.org
Subject: 30.0.92; Unexpected behavior by which-function-mode in erc-mode
 buffers
Date: Tue, 17 Dec 2024 19:43:51 -0500

Hello Maintainers,

I guess this is probably unexpected behavior by which-function-mode in erc-mode
buffers and so reporting this.


steps to reproduce:
emacs --no-init
M-x erc
;; join some channel.
M-x which-function-mode

Current behavior:
In erc buffers, which-function-mode displays either "[n/a]" or a string based on
the chat history in the mode line.

Expected behavior:
which-function-mode shouldn’t be adding any string to mode line in erc buffers


Thank you for your time!

* * *

In GNU Emacs 30.0.92 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.41, cairo
version 1.18.0)
Windowing system distributor 'The X.Org Foundation', version 11.0.12101014
System Description: Guix System

Configured using:
 'configure
 CONFIG_SHELL=/gnu/store/3jhfhxdf6v5ms10x5zmnl166dh3yhbr1-bash-minimal-5.1.16/bin/bash
 SHELL=/gnu/store/3jhfhxdf6v5ms10x5zmnl166dh3yhbr1-bash-minimal-5.1.16/bin/bash --prefix=/gnu/store/dgpfiflaxb8j33jcbqk29wadcykajl51-emacs-next-30.0.92-0.881d593 --enable-fast-install --with-cairo --with-modules --with-native-compilation=aot --disable-build-details'

Configured features:
ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG LCMS2
LIBOTF LIBSELINUX LIBSYSTEMD LIBXML2 M17N_FLT MODULES NATIVE_COMP NOTIFY INOTIFY
PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS
TREE_SITTER X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB

--
Regards,
Anush V

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From: "J.P." <jp <at> neverwas.me>
To: 74934-done <at> debbugs.gnu.org
Cc: Eli Zaretskii <eliz <at> gnu.org>, emacs-erc <at> gnu.org, j <at> gnu.org
Subject: Re: bug#74934: 30.0.92; Unexpected behavior by which-function-mode
 in erc-mode buffers
Date: Sun, 22 Dec 2024 11:51:57 -0800

"J.P." <jp <at> neverwas.me> writes:

> Eli Zaretskii <eliz <at> gnu.org> writes:
>
>> Is this for the release branch?  That is, is this a recent regression?
>
> No, this is for Emacs master (and ERC 5.6.1). AFAICT, the bug has been
> with us since at least Emacs 26.3, although "[n/a]" used to be "[???]".

This has been installed as

  https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=d1c670f0

>
>>
>> And if so, what is the second patch for?
>
> For anyone wondering, the second patch is for contributors working on
> ERC (I will add a news item).

I moved the dev utility to

  test/lisp/erc/resources/erc-tests-common.el

and changed it to only modify the local binding of the variable
`imenu-generic-expression'. Installed as:

  https://git.savannah.gnu.org/cgit/emacs.git/commit/?id=e9591fae

Thanks and closing.

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