unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
* bug#40714: Reinitialising the major mode disables which-function-mode.
@ 2020-04-19 11:12 Alan Mackenzie
       [not found] ` <handler.40714.B.15872947623585.ack@debbugs.gnu.org>
  0 siblings, 1 reply; 2+ messages in thread
From: Alan Mackenzie @ 2020-04-19 11:12 UTC (permalink / raw)
  To: 40714

Hello, Emacs.

In a typical buffer, say an emacs-lisp-mode buffer, with
which-function-mode enabled and working, do

    M-x emacs-lisp-mode

.  which-function-mode is no longer working.

#########################################################################

The cause of this is that the enablement of w-f-m is stored in a buffer
local variable which-func-mode.  This local variable gets killed on
reinitialising the major mode.  There is nothing to set it to non-nil
again.

When visiting a file, which-func-mode gets set in a file-find-hook
function called which-func-ff-hook.

Suggested fix: Move which-func-ff-hook to after-change-major-mode-hook
(renaming it, of course).

-- 
Alan Mackenzie (Nuremberg, Germany).





^ permalink raw reply	[flat|nested] 2+ messages in thread

* bug#40714: Acknowledgement (Reinitialising the major mode disables which-function-mode.)
       [not found] ` <handler.40714.B.15872947623585.ack@debbugs.gnu.org>
@ 2020-05-20 18:08   ` Alan Mackenzie
  0 siblings, 0 replies; 2+ messages in thread
From: Alan Mackenzie @ 2020-05-20 18:08 UTC (permalink / raw)
  To: 40714-done

Bug fixed in master.

-- 
Alan Mackenzie (Nuremberg, Germany).





^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2020-05-20 18:08 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-04-19 11:12 bug#40714: Reinitialising the major mode disables which-function-mode Alan Mackenzie
     [not found] ` <handler.40714.B.15872947623585.ack@debbugs.gnu.org>
2020-05-20 18:08   ` bug#40714: Acknowledgement (Reinitialising the major mode disables which-function-mode.) Alan Mackenzie

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).