bug#4427: 23.1; defun* don't work when compiled.

[Thierry Volpiatto]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

Hi all,

In traverselisp.el, i use cl stuff with
(eval-when-compile (require 'cl)) at start of file.
I have functions that are like:
(defun* foo (&key a b)...

They all work fine after compiling file.

However, i have one new function that don't work when compiling file but
work as normal when loading the .el file, or evaluate the function with
C-M x.

I wonder why.
It seem that variables coming from key arg and evaluated in a cond clause
don't work when compiled and evaluated from compiled file (.elc).

Here is the output of:

(symbol-function 'traverse-auto-document-lisp-buffer)
After loading only .elc file.

--8<---------------cut here---------------start------------->8---
#[(&rest --cl-rest--) "\306>A@.\307>A@..\2038.@\310>\203!.
AA\211.\202.\203Y.\344
.C\"\203\345.\356.C\357Qc\210\202\345.\356.C\357Qc\210\202\345. 
\360=\203\222.\354\355.C!!\204\345.
\203\210.\344
.C\"\203\345.\356.C\357Qc\210\202\345.\356.C\357Qc\210\202\345. \361=\203\270.
\203\256.\344
.C\"\203\345.\356.C\357Qc\210\202\345.\356.C\357Qc\210\202\345. \362=\203\336.
\203\324.\344
.C\"\203\345.\356.C\357Qc\210\202\345.\356.C\357Qc\210\202\345.\356.C\357Qc\210+.?A\211.?\204.
.
        \312\207" [--cl-rest-- type prefix --cl-keys-- boundary-regexp regexp 
:type :prefix (:type :prefix :allow-other-keys) :allow-other-keys nil error 
...] 9 ("/home/thierry/elisp/traverselisp.elc" . 45818)]
--8<---------------cut here---------------end--------------->8---

Here is the same after evaluation of .el file or function with C-M x:

--8<---------------cut here---------------start------------->8---
(lambda (&rest --cl-rest--) "Not documented

(fn &key TYPE PREFIX)" (let* ((type ...) (prefix ...)) (let (...) (while 
--cl-keys-- ...)) (block traverse-auto-document-lisp-buffer (let* ... ... ... 
... ... ...))))
--8<---------------cut here---------------end--------------->8---

So here it is normal and the function work as intended.
When using the function from .elc file, i have no error, the function
just return nil, even with debug-on-error turned on.

Here the function:

,----
| (defun* traverse-auto-document-lisp-buffer (&key type prefix)
|   (let* ((boundary-regexp "^;;=*LIMIT.*")
|          (regexp          (case type
|                             ('nested "^ +\(def\\(un\\|subst\\|advice\\)")
|                             ('command "\(def\\(un\\|subst\\)")
|                             ('internal-variable "\(defvar")
|                             ('user-variable "\(defcustom")
|                             ('faces "\(defface")
|                             ('function "\(def\\(un\\|subst\\|advice\\)")
|                             (t (error "Unknow type"))))
|          (fn-list         (traverse-find-readlines
|                            (current-buffer)
|                            regexp
|                            :insert-fn 'buffer))
|          beg end)
|     (insert "\n") (setq beg (point))
|     (save-excursion (when (re-search-forward boundary-regexp)
|                       (forward-line -1) (setq end (point))))
|     (delete-region beg end)
|     (dolist (i fn-list)
|       (let* ((elm     (cadr i))
|              (elm-mod (replace-regexp-in-string regexp "" elm))
|              (elm-fin (replace-regexp-in-string "\(\\|\)" ""(car 
(split-string elm-mod)))))
|         (cond ((eq type 'command)
|                (when (commandp (intern elm-fin))
|                  (if prefix
|                      (when (string-match prefix elm-fin)
|                        (insert (concat ";; \`" elm-fin "\'\n")))
|                      (insert (concat ";; \`" elm-fin "\'\n")))))
|               ((eq type 'function)
|                (when (not (commandp (intern elm-fin)))
|                  (if prefix
|                      (when (string-match prefix elm-fin)
|                        (insert (concat ";; \`" elm-fin "\'\n")))
|                      (insert (concat ";; \`" elm-fin "\'\n")))))
|               ((eq type 'internal-variable)
|                (if prefix
|                    (when (string-match prefix elm-fin)
|                      (insert (concat ";; \`" elm-fin "\'\n")))
|                    (insert (concat ";; \`" elm-fin "\'\n"))))
|               ((eq type 'nested)
|                (if prefix
|                    (when (string-match prefix elm-fin)
|                      (insert (concat ";; \`" elm-fin "\'\n")))
|                    (insert (concat ";; \`" elm-fin "\'\n"))))
|               (t
|                (insert (concat ";; \`" elm-fin "\'\n"))))))))
`----

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/23.1/etc/DEBUG for instructions.


In GNU Emacs 23.1.1 (i686-pc-linux-gnu, GTK+ Version 2.16.5)
 of 2009-07-31 on tux
Windowing system distributor `The X.Org Foundation', version 11.0.10503000
configured using `configure  '--prefix=/usr' '--build=i686-pc-linux-gnu' 
'--host=i686-pc-linux-gnu' '--mandir=/usr/share/man' 
'--infodir=/usr/share/info' '--datadir=/usr/share' '--sysconfdir=/etc' 
'--localstatedir=/var/lib' '--program-suffix=-emacs-23' 
'--infodir=/usr/share/info/emacs-23' '--with-sound' '--with-x' 
'--without-toolkit-scroll-bars' '--with-gif' '--with-jpeg' '--with-png' 
'--with-rsvg' '--with-tiff' '--with-xpm' '--with-xft' '--without-libotf' 
'--without-m17n-flt' '--with-x-toolkit=gtk' '--without-hesiod' 
'--without-kerberos' '--without-kerberos5' '--with-gpm' '--with-dbus' 
'build_alias=i686-pc-linux-gnu' 'host_alias=i686-pc-linux-gnu' 
'CFLAGS=-march=i686 -pipe -O2' 'LDFLAGS=-Wl,-O1''

Important settings:
  value of $LC_ALL: fr_FR.UTF-8
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: fr_FR.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  eldoc-mode: t
  icomplete-mode: t
  icicle-mode: t
  delete-selection-mode: t
  minibuffer-depth-indicate-mode: t
  auto-image-file-mode: t
  shell-dirtrack-mode: t
  partial-completion-mode: t
  show-paren-mode: t
  display-battery-mode: t
  display-time-mode: t
  diff-auto-refine-mode: t
  outline-minor-mode: t
  recentf-mode: t
  savehist-mode: t
  desktop-save-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
M-x M-p <return> <f11> a <down> <return> <up> <up> 
C-SPC C-n C-n C-w <up> M-e C-h e <f11> s c M-> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> <up> <up> <up> 
<up> <up> <up> <up> <up> <up> <up> <up> C-SPC C-n C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n 
C-n C-n C-n C-n C-n C-n C-x r s a C-g M-x r e p o r 
t - e m a c s - b u <tab> <return>

Recent messages:
Type C-x 4 C-o RET to restore the other window, C-M-v to scroll help. [2 times]

Parsing BBDB... (frobnicating...done)
Loading /home/thierry/.emacs.d/yaoddmuse-cache.el (source)...done
Mark set
nil
Auto-saving...done
Mark set [2 times]
Quit
Computing completion candidates...

-- 
A + Thierry Volpiatto
Location: Saint-Cyr-Sur-Mer - France