bug#40431: 27.0.90; Can't edebug cl-defuns with &aux destructuring

[Philipp Stephani]

Insert into *scratch*:

(cl-defun foo (&aux ((a . b) '(1 . 2)))
  (list a b))

Now try to edebug this function (move point into it, hit C-u C-M-x).
This gives an error:

Debugger entered--Lisp error: (invalid-read-syntax "Expected one of" arg nil)
  signal(invalid-read-syntax ("Expected one of" arg nil))
  edebug-syntax-error("Expected one of" arg nil)
  apply(edebug-syntax-error ("Expected one of" arg nil))
  edebug-no-match(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
"Expected one of" arg nil)
  apply(edebug-no-match ((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) 
. 174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 
185) "Expected one of" (arg nil))
  edebug-match-&or(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
(arg nil))
  edebug-match-specs(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
(&or arg nil) edebug-match-specs)
  edebug-match(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 174) 
(175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) (&or 
arg nil))
  edebug-match-one-spec(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) 
. 174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 
185) [&or arg nil])
  edebug-match-specs(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
([&or arg nil]) edebug-match-specs)
  edebug-match-specs(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
[&or arg nil] edebug-match-specs)
  edebug-match-specs(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
([&optional ["&aux" &rest &or (symbolp &optional def-form) symbolp]] . [&or arg 
nil]) edebug-match-specs)
  edebug-match-specs(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
([&optional ["&key" [cl-&key-arg &rest cl-&key-arg] &optional 
"&allow-other-keys"]] [&optional ["&aux" &rest &or (symbolp &optional def-form) 
symbolp]] . [&or arg nil]) edebug-match-specs)
  edebug-match-specs(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
([&optional ["&rest" cl-lambda-arg]] [&optional ["&key" [cl-&key-arg &rest 
cl-&key-arg] &optional "&allow-other-keys"]] [&optional ["&aux" &rest &or 
(symbolp &optional def-form) symbolp]] . [&or arg nil]) edebug-match-specs)
  edebug-match-specs(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
([&optional ["&optional" cl-&optional-arg &rest cl-&optional-arg]] [&optional 
["&rest" cl-lambda-arg]] [&optional ["&key" [cl-&key-arg &rest cl-&key-arg] 
&optional "&allow-other-keys"]] [&optional ["&aux" &rest &or (symbolp &optional 
def-form) symbolp]] . [&or arg nil]) edebug-match-specs)
  edebug-match-specs(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
([&rest cl-lambda-arg] [&optional ["&optional" cl-&optional-arg &rest 
cl-&optional-arg]] [&optional ["&rest" cl-lambda-arg]] [&optional ["&key" 
[cl-&key-arg &rest cl-&key-arg] &optional "&allow-other-keys"]] [&optional 
["&aux" &rest &or (symbolp &optional def-form) symbolp]] . [&or arg nil]) 
edebug-match-specs)
  edebug-match-sublist(((((a . b) '(1 . 2))) (166 (167 (168 . 169) (171 . 173) 
. 174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 
185) ([&rest cl-lambda-arg] [&optional ["&optional" cl-&optional-arg &rest 
cl-&optional-arg]] [&optional ["&rest" cl-lambda-arg]] [&optional ["&key" 
[cl-&key-arg &rest cl-&key-arg] &optional "&allow-other-keys"]] [&optional 
["&aux" &rest &or (symbolp &optional def-form) symbolp]] . [&or arg nil]))
  edebug-match-list((((&aux ((a . b) '(1 . 2))) (list a b)) (160 (161 . 165) 
(166 (167 (168 . 169) (171 . 173) . 174) (175 (175 . 176) (176 (177 . 178) (180 
. 182) . 183) . 183) . 184) . 185) (188 (189 . 193) (194 . 195) (196 . 197) . 
198) . 199) ([&rest cl-lambda-arg] [&optional ["&optional" cl-&optional-arg 
&rest cl-&optional-arg]] [&optional ["&rest" cl-lambda-arg]] [&optional ["&key" 
[cl-&key-arg &rest cl-&key-arg] &optional "&allow-other-keys"]] [&optional 
["&aux" &rest &or (symbolp &optional def-form) symbolp]] . [&or arg nil]))
  edebug-match-one-spec((((&aux ((a . b) '(1 . 2))) (list a b)) (160 (161 . 
165) (166 (167 (168 . 169) (171 . 173) . 174) (175 (175 . 176) (176 (177 . 178) 
(180 . 182) . 183) . 183) . 184) . 185) (188 (189 . 193) (194 . 195) (196 . 
197) . 198) . 199) ([&rest cl-lambda-arg] [&optional ["&optional" 
cl-&optional-arg &rest cl-&optional-arg]] [&optional ["&rest" cl-lambda-arg]] 
[&optional ["&key" [cl-&key-arg &rest cl-&key-arg] &optional 
"&allow-other-keys"]] [&optional ["&aux" &rest &or (symbolp &optional def-form) 
symbolp]] . [&or arg nil]))
  edebug-match-specs((((&aux ((a . b) '(1 . 2))) (list a b)) (160 (161 . 165) 
(166 (167 (168 . 169) (171 . 173) . 174) (175 (175 . 176) (176 (177 . 178) (180 
. 182) . 183) . 183) . 184) . 185) (188 (189 . 193) (194 . 195) (196 . 197) . 
198) . 199) (([&rest cl-lambda-arg] [&optional ["&optional" cl-&optional-arg 
&rest cl-&optional-arg]] [&optional ["&rest" cl-lambda-arg]] [&optional ["&key" 
[cl-&key-arg &rest cl-&key-arg] &optional "&allow-other-keys"]] [&optional 
["&aux" &rest &or (symbolp &optional def-form) symbolp]] . [&or arg nil])) 
edebug-match-specs)
  edebug-match((((&aux ((a . b) '(1 . 2))) (list a b)) (160 (161 . 165) (166 
(167 (168 . 169) (171 . 173) . 174) (175 (175 . 176) (176 (177 . 178) (180 . 
182) . 183) . 183) . 184) . 185) (188 (189 . 193) (194 . 195) (196 . 197) . 
198) . 199) (([&rest cl-lambda-arg] [&optional ["&optional" cl-&optional-arg 
&rest cl-&optional-arg]] [&optional ["&rest" cl-lambda-arg]] [&optional ["&key" 
[cl-&key-arg &rest cl-&key-arg] &optional "&allow-other-keys"]] [&optional 
["&aux" &rest &or (symbolp &optional def-form) symbolp]] . [&or arg nil])))
  edebug-match-symbol((((&aux ((a . b) '(1 . 2))) (list a b)) (160 (161 . 165) 
(166 (167 (168 . 169) (171 . 173) . 174) (175 (175 . 176) (176 (177 . 178) (180 
. 182) . 183) . 183) . 184) . 185) (188 (189 . 193) (194 . 195) (196 . 197) . 
198) . 199) cl-lambda-list)
  edebug-match-one-spec((((&aux ((a . b) '(1 . 2))) (list a b)) (160 (161 . 
165) (166 (167 (168 . 169) (171 . 173) . 174) (175 (175 . 176) (176 (177 . 178) 
(180 . 182) . 183) . 183) . 184) . 185) (188 (189 . 193) (194 . 195) (196 . 
197) . 198) . 199) cl-lambda-list)
  edebug-match-specs((((&aux ((a . b) '(1 . 2))) (list a b)) (160 (161 . 165) 
(166 (167 (168 . 169) (171 . 173) . 174) (175 (175 . 176) (176 (177 . 178) (180 
. 182) . 183) . 183) . 184) . 185) (188 (189 . 193) (194 . 195) (196 . 197) . 
198) . 199) (cl-lambda-list cl-declarations-or-string [&optional ("interactive" 
interactive)] def-body) edebug-match-specs)
  edebug-match-specs((((&aux ((a . b) '(1 . 2))) (list a b)) (160 (161 . 165) 
(166 (167 (168 . 169) (171 . 173) . 174) (175 (175 . 176) (176 (177 . 178) (180 
. 182) . 183) . 183) . 184) . 185) (188 (189 . 193) (194 . 195) (196 . 197) . 
198) . 199) ([&or name ("setf" :name setf name)] cl-lambda-list 
cl-declarations-or-string [&optional ("interactive" interactive)] def-body) 
edebug-match-specs)
  edebug-match-specs((((&aux ((a . b) '(1 . 2))) (list a b)) (160 (161 . 165) 
(166 (167 (168 . 169) (171 . 173) . 174) (175 (175 . 176) (176 (177 . 178) (180 
. 182) . 183) . 183) . 184) . 185) (188 (189 . 193) (194 . 195) (196 . 197) . 
198) . 199) ("cl-defun" [&or name ("setf" :name setf name)] cl-lambda-list 
cl-declarations-or-string [&optional ("interactive" interactive)] def-body) 
edebug-match-specs)
  edebug-match-sublist((((&aux ((a . b) '(1 . 2))) (list a b)) (160 (161 . 165) 
(166 (167 (168 . 169) (171 . 173) . 174) (175 (175 . 176) (176 (177 . 178) (180 
. 182) . 183) . 183) . 184) . 185) (188 (189 . 193) (194 . 195) (196 . 197) . 
198) . 199) ("cl-defun" [&or name ("setf" :name setf name)] cl-lambda-list 
cl-declarations-or-string [&optional ("interactive" interactive)] def-body))
  edebug-match-list((((cl-defun foo (&aux ((a . b) '(1 . 2))) (list a b))) (146 
(147 . 155) (156 . 159) (160 (161 . 165) (166 (167 (168 . 169) (171 . 173) . 
174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) 
(188 (189 . 193) (194 . 195) (196 . 197) . 198) . 199)) ("cl-defun" [&or name 
("setf" :name setf name)] cl-lambda-list cl-declarations-or-string [&optional 
("interactive" interactive)] def-body))
  edebug-match-one-spec((((cl-defun foo (&aux ((a . b) '(1 . 2))) (list a b))) 
(146 (147 . 155) (156 . 159) (160 (161 . 165) (166 (167 (168 . 169) (171 . 173) 
. 174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 
185) (188 (189 . 193) (194 . 195) (196 . 197) . 198) . 199)) ("cl-defun" [&or 
name ("setf" :name setf name)] cl-lambda-list cl-declarations-or-string 
[&optional ("interactive" interactive)] def-body))
  edebug-match-specs((((cl-defun foo (&aux ((a . b) '(1 . 2))) (list a b))) 
(146 (147 . 155) (156 . 159) (160 (161 . 165) (166 (167 (168 . 169) (171 . 173) 
. 174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 
185) (188 (189 . 193) (194 . 195) (196 . 197) . 198) . 199)) (("cl-defun" [&or 
name ("setf" :name setf name)] cl-lambda-list cl-declarations-or-string 
[&optional ("interactive" interactive)] def-body)) edebug-match-specs)
  edebug-match((((cl-defun foo (&aux ((a . b) '(1 . 2))) (list a b))) (146 (147 
. 155) (156 . 159) (160 (161 . 165) (166 (167 (168 . 169) (171 . 173) . 174) 
(175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) . 185) (188 
(189 . 193) (194 . 195) (196 . 197) . 198) . 199)) (("cl-defun" [&or name 
("setf" :name setf name)] cl-lambda-list cl-declarations-or-string [&optional 
("interactive" interactive)] def-body)))
  edebug-make-form-wrapper((((cl-defun foo (&aux ((a . b) '(1 . 2))) (list a 
b))) (146 (147 . 155) (156 . 159) (160 (161 . 165) (166 (167 (168 . 169) (171 . 
173) . 174) (175 (175 . 176) (176 (177 . 178) (180 . 182) . 183) . 183) . 184) 
. 185) (188 (189 . 193) (194 . 195) (196 . 197) . 198) . 199)) 146 198 
(("cl-defun" [&or name ("setf" :name setf name)] cl-lambda-list 
cl-declarations-or-string [&optional ("interactive" interactive)] def-body)))
  edebug-read-and-maybe-wrap-form1()
  edebug-read-and-maybe-wrap-form()
  edebug-read-top-level-form()
  edebug-eval-defun((4))
  apply(edebug-eval-defun (4))
  eval-defun((4))
  funcall-interactively(eval-defun (4))
  call-interactively(eval-defun nil nil)
  command-execute(eval-defun)



In GNU Emacs 27.0.90 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.12)
 of 2020-04-03
Repository revision: fa823653ffb0e3e893d30daa5abf68e909934e2e
Repository branch: emacs-27
Windowing system distributor 'The X.Org Foundation', version 11.0.12004000
System Description: Debian GNU/Linux rodete

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.

Configured using:
 'configure --enable-gcc-warnings=warn-only
 --enable-gtk-deprecation-warnings --without-pop --with-mailutils
 --enable-checking --enable-check-lisp-object-type --with-modules
 'CFLAGS=-O0 -ggdb3''

Configured features:
XPM JPEG TIFF GIF PNG SOUND DBUS GSETTINGS GLIB NOTIFY INOTIFY
LIBSELINUX GNUTLS FREETYPE HARFBUZZ XFT ZLIB TOOLKIT_SCROLL_BARS GTK3
X11 XDBE XIM MODULES THREADS PDUMPER GMP

Important settings:
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8-unix

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug message rmc dired dired-loaddefs
format-spec rfc822 mml easymenu mml-sec epa epg epg-config gnus-util
rmail rmail-loaddefs text-property-search time-date mm-decode mm-bodies
mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail
rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils phst skeleton
derived edmacro kmacro pcase ffap thingatpt url-parse auth-source cl-seq
eieio eieio-core cl-macs eieio-loaddefs password-cache json map url-vars
subr-x rx gnutls puny seq byte-opt gv bytecomp byte-compile cconv dbus
xml cl-loaddefs cl-lib tooltip eldoc electric uniquify ediff-hook
vc-hooks lisp-float-type mwheel term/x-win x-win term/common-win x-dnd
tool-bar dnd fontset image regexp-opt fringe tabulated-list replace
newcomment text-mode elisp-mode lisp-mode prog-mode register page
tab-bar menu-bar rfn-eshadow isearch timer select scroll-bar mouse
jit-lock font-lock syntax facemenu font-core term/tty-colors frame
minibuffer cl-generic cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
composite charscript charprop case-table epa-hook jka-cmpr-hook help
simple abbrev obarray cl-preloaded 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
threads dbusbind inotify dynamic-setting system-font-setting
font-render-setting move-toolbar gtk x-toolkit x multi-tty
make-network-process emacs)

Memory information:
((conses 16 60657 8869)
 (symbols 48 8240 1)
 (strings 32 21020 1889)
 (string-bytes 1 684567)
 (vectors 16 12144)
 (vector-slots 8 169116 5378)
 (floats 8 25 25)
 (intervals 56 202 0)
 (buffers 1000 12))

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