The relevant commit (here linked from github):
https://github.com/emacs-mirror/emacs/commit/8635147ccba1fc8e1010010da8c3f8e467562f76#diff-10f71b5f4495401d9de9677a0836462bWith this latest change, if `imenu-auto-rescan` is set to `t` then
calling `imenu--index-alist` will return `nil`. The fix is to change
`(unless imenu-auto-rescan (cons ...))` to
`(if imenu-auto-rescan imenu--index-alist (cons ...))` in `imenu.el`.
Reproduction steps:
- Visit a file that supports `imenu` (e.g. an elisp buffer with some
functions defined)
- C-M-; (setq imenu-auto-rescan nil)
- M-x imenu
- There should be items in the list
- C-M-; (setq imenu-auto-rescan t)
- M-x imenu
- The list should be empty
In GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.18.9, cairo version 1.14.6)
of 2019-09-17 built on alex-Z370M-D3H
Repository revision: bc1c2cf009e30af77523fd87a8910fdbc4284704
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.11906000
System Description: Ubuntu 16.04.6 LTS
Recent messages:
Mark set [3 times]
Auto-saving...
imenu--make-index-alist
Scanning declarations in Cmdline.hs... ( 89%)
Sorting declarations in Cmdline.hs...done
Quit [2 times]
counsel-imenu
Scanning declarations in Cmdline.hs... ( 89%)
Sorting declarations in Cmdline.hs...done
Quit [2 times]
Configured using:
'configure --with-imagemagick --with-gnutls --with-xwidgets
--with-cairo --with-mailutils --with-pop
--prefix=/home/alex/opt/emacs/install'
Configured features:
XPM JPEG TIFF GIF PNG CAIRO SOUND DBUS GSETTINGS GLIB NOTIFY INOTIFY
GNUTLS LIBXML2 FREETYPE HARFBUZZ ZLIB TOOLKIT_SCROLL_BARS GTK3 X11 XDBE
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Important settings:
value of $LANG: en_GB.UTF-8
value of $XMODIFIERS:
locale-coding-system: utf-8-unix
Major mode: Haskell
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haskell-decl-scan-mode: t
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xah-math-input-mode: t
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smartparens-mode: t
global-undo-tree-mode: t
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shell-dirtrack-mode: t
evil-local-mode: t
save-place-mode: t
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electric-indent-mode: t
mouse-wheel-mode: t
file-name-shadow-mode: t
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auto-encryption-mode: t
auto-compression-mode: t
column-number-mode: t
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Load-path shadows:
None found.
Features:
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multi-tty make-network-process emacs)
Memory information:
((conses 16 672434 60435)
(symbols 48 42799 6)
(strings 32 200345 8564)
(string-bytes 1 6847260)
(vectors 16 90639)
(vector-slots 8 1773190 53886)
(floats 8 464 834)
(intervals 56 5460 2974)
(buffers 992 23)
(heap 1024 64379 13426))