bug#18352: 24.4.50; eldoc and zero-argument functions

[Tom Tromey]

>From "emacs -Q":

* M-x eldoc-mode
* Type this into *scratch*: "(frame-list "

Now wait.  eldoc will show "frame-list: (" in the echo area.
However, this seems odd.  Perhaps "frame-list: ()" would be better.




In GNU Emacs 24.4.50.3 (x86_64-unknown-linux-gnu, GTK+ Version 3.10.9)
 of 2014-08-25 on bapiya
Repository revision: 117737 larsi@gnus.org-20140825160439-n2pctn8z8qwgeh3g
Windowing system distributor `Fedora Project', version 11.0.11404000
Configured using:
 `configure --prefix=/home/tromey/Emacs/install'

Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS
NOTIFY LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB

Important settings:
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=none
  locale-coding-system: utf-8-unix

Major mode: Summary

Minor modes in effect:
  diff-auto-refine-mode: t
  shell-dirtrack-mode: t
  helm-match-plugin-mode: t
  helm-occur-match-plugin-mode: t
  which-function-mode: t
  global-auto-revert-mode: t
  erc-services-mode: t
  erc-list-mode: t
  erc-menu-mode: t
  erc-autojoin-mode: t
  erc-ring-mode: t
  erc-networks-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-match-mode: t
  erc-button-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  erc-move-to-prompt-mode: t
  erc-readonly-mode: t
  savehist-mode: t
  tooltip-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  buffer-read-only: t
  column-number-mode: t
  line-number-mode: t

Recent input:
C-s C-s C-a C-u C-u C-p C-p C-l C-x v v C-SPC C-v C-u 
C-n C-u C-n C-u C-n C-n C-x C-x C-w C-o C-z n C-u C-p 
C-M-SPC M-w C-z n C-y C-f C-f C-x C-s C-x v v c h a 
n <M-backspace> c h a n g e SPC h o w SPC d i s p l 
a y M-b C-e - <backspace> M-b w i n d o w SPC C-e SPC 
i s SPC d o n e C-c C-c C-z n C-h i q <switch-frame> 
<switch-frame> <switch-frame> C-z n C-e C-b C-h v <return> 
C-x o C-x 1 C-c b C-z n C-z n C-c r n n SPC q n n n 
C-u C-n C-u C-n C-u C-n p SPC SPC C-u <return> q C-u 
C-n M-g M-g M-g M-g M-g p SPC q C-u C-p p SPC 2 4 <return> 
q C-u C-n p SPC q C-n C-n C-l M-g M-g M-g M-g M-g M-g 
M-g M-g M-g M-g C-u C-u C-p C-u C-n SPC 1 1 <return> 
d SPC = n SPC = n n SPC = d d d d d d SPC q p SPC 9 
0 <return> d d d d d d SPC = d SPC C-z n C-M-f C-M-b 
<switch-frame> <help-echo> = C-n C-u d C-z n C-z n 
C-u d d d d d SPC SPC = d d SPC C-z n C-x * C-g C-g 
C-x b * s c r <tab> <return> C-a M-> <return> ( f r 
a m e - l i s t SPC C-a C-o ( i g n o r e SPC C-a C-k 
C-k <switch-frame> <switch-frame> C-z n M-x r e p o 
r t - e m a c s - b u g <return>

Recent messages:
No more unseen articles
Expiring articles...done
Opening nntp server on news.gmane.org...done
Auto-saving...done
No more unseen articles [3 times]
noticed "Johan Claesson"
noticed ""
Auto-saving...
C-x *  (Type ? for a list of Calc options)
Quit [2 times]

Load-path shadows:
/home/tromey/.emacs.d/elpa/css-mode-1.0/css-mode hides 
/home/tromey/Emacs/install/share/emacs/24.4.50/lisp/textmodes/css-mode
/home/tromey/.emacs.d/elpa/bubbles-0.5/bubbles hides 
/home/tromey/Emacs/install/share/emacs/24.4.50/lisp/play/bubbles

Features:
(shadow emacsbug calc calc-loaddefs calc-macs debug xterm org-element
org-rmail org-mhe org-irc org-info org-gnus org-docview doc-view
image-mode org-bibtex bibtex org-bbdb org-w3m org org-macro org-footnote
org-pcomplete org-list org-faces org-entities noutline outline
org-version ob-emacs-lisp ob ob-tangle org-src ob-ref ob-lob ob-table
ob-keys ob-exp ob-comint ob-core ob-eval org-compat org-macs
org-loaddefs gnus-fun whitespace gdb-shell find-file make-mode idutils
derived cc-langs cc-mode cc-fonts cc-guess cc-menus cc-cmds smerge-mode
bug-reference goto-addr ido dabbrev log-edit pcvs-util add-log copyright
diff-mode jka-compr eieio-opt speedbar sb-image ezimage dframe shr-color
color help-mode mailalias bbdb-sc supercite easy-mmode regi mail-hist
nnir flow-fill misearch multi-isearch gnus-html url-cache mm-url
bbdb-gui bbdb-hooks vc-arch vc-mtn vc-hg vc-git vc-bzr vc-sccs vc-svn
vc-cvs vc-rcs mule-util sort gnus-cite smiley qp shr mm-archive
gnus-async gnus-bcklg gnus-ml disp-table gnus-topic nndraft nnmh
nnfolder utf-7 bbdb-gnus bbdb-snarf mail-extr bbdb-com warnings cl
gnutls network-stream starttls gnus-agent gnus-srvr gnus-score
score-mode nnvirtual gnus-msg nntp gnus-cache gnus-registry registry
eieio-base gnus-art mm-uu mml2015 epg-config mm-view mml-smime smime dig
gnus-sum gnus-group gnus-undo smtpmail sendmail gnus-start gnus-cloud
nnimap nnmail mail-source tls utf7 netrc nnoo parse-time gnus-spec
gnus-int gnus-range message rfc822 mml mml-sec mm-decode mm-bodies
mm-encode mail-parse rfc2231 rfc2047 rfc2045 ietf-drums mailabbrev
gmm-utils mailheader gnus-win gnus gnus-ems nnheader mail-utils
helm-mode helm-files rx image-dired tramp tramp-compat tramp-loaddefs
trampver shell dired-x dired-aux ffap helm-buffers helm-elscreen
helm-tags helm-bookmark helm-adaptive helm-info helm-net browse-url xml
url url-proxy url-privacy url-expand url-methods url-history url-cookie
url-domsuf url-util url-parse url-vars mailcap helm-plugin bookmark
helm-locate helm-help helm-match-plugin helm-grep helm-regexp
helm-external helm-utils dired helm cl-macs gv flyspell ispell eldoc
diminish projectile edmacro kmacro pkg-info find-func lisp-mnt epl grep
compile dash s appt diary-lib diary-loaddefs cal-menu calendar
cal-loaddefs which-func imenu minimap autorevert filenotify cus-start
cus-load status erc-services erc-list erc-menu erc-join erc-ring
erc-networks erc-pcomplete pcomplete erc-track erc-match erc-button
wid-edit cl-loaddefs cl-lib erc-fill erc-stamp erc-netsplit erc-goodies
erc erc-backend erc-compat format-spec auth-source eieio byte-opt
bytecomp byte-compile cconv eieio-core gnus-util mm-util mail-prsvr
password-cache thingatpt pp advice help-fns vc-dir ewoc vc vc-dispatcher
cc-styles cc-align cc-engine cc-vars cc-defs bbdb timezone ange-ftp
comint ansi-color ring server savehist dwarf-mode-autoloads
gdb-shell-autoloads jabber-autoloads lisppaste-autoloads
pydoc-info-autoloads info-look info easymenu weblogger-autoloads package
bbdb-autoloads time-date tooltip electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment lisp-mode prog-mode register page
menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock
syntax facemenu font-core frame cham georgian utf-8-lang misc-lang
vietnamese tibetan thai tai-viet lao korean japanese hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer nadvice
loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
gfilenotify dynamic-setting system-font-setting font-render-setting
move-toolbar gtk x-toolkit x multi-tty emacs)

Memory information:
((conses 16 876541 66279)
 (symbols 48 102898 49)
 (miscs 40 22175 6521)
 (strings 32 316150 32972)
 (string-bytes 1 6904088)
 (vectors 16 97092)
 (vector-slots 8 2082448 157735)
 (floats 8 614 1177)
 (intervals 56 54557 857)
 (buffers 976 86)
 (heap 1024 279812 46429))

Tom