--- Begin Message ---
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Subject: |
24.1; CL argument list error |
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Date: |
Fri, 15 Jun 2012 14:44:06 +0100 |
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User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.1 (gnu/linux) |
Dear Emacs maintainers and bug fixers,
In Emacs 22.1, evaluating
(funcall (function* (lambda ((x . y)) (cons y x))) '(1 . 2))
returns (2 . 1), as expected and documented.
In Emacs 24.1, evaluating the above sexp yields this error message:
Wrong type argument: listp, y
This happens because
(cl--make-usage-args '((x . y)))
recursively descends into it argument list and evaluates this:
(memq '&cl-defs '(x . y))
In the older Emacs, cl--make-usage-args did not even exist and only a
simpler portion of its code is present instead of the call to
cl--make-usage-args. In particular, the recursive descent is missing.
I hope this bug report is somehow helpful.
By the way, I have personally worked around the bug by disabling
cl--make-usage-args completely, which is okay because it is only used
to build a doc string for the anonymous function. I disabled it like
this:
(defadvice cl--make-usage-args (around jbw-fix-brokenness activate))
--
With my best wishes,
Joe Wells
----------------------------------------------------------------------
In GNU Emacs 24.1.1 (i686-redhat-linux-gnu, GTK+ Version 2.10.4)
of 2012-06-12 on jove
Configured using:
`configure '--build=i686-redhat-linux-gnu'
'--host=i686-redhat-linux-gnu' '--target=i386-redhat-linux-gnu'
'--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr'
'--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc'
'--datadir=/usr/share' '--includedir=/usr/include' '--libdir=/usr/lib'
'--libexecdir=/usr/libexec' '--localstatedir=/var'
'--sharedstatedir=/usr/com' '--mandir=/usr/share/man'
'--infodir=/usr/share/info' '--with-dbus' '--with-gif' '--with-jpeg'
'--with-png' '--with-rsvg' '--with-tiff' '--with-xft' '--with-xpm'
'--with-x-toolkit=gtk' 'build_alias=i686-redhat-linux-gnu'
'host_alias=i686-redhat-linux-gnu' 'target_alias=i386-redhat-linux-gnu'
'CFLAGS=-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2
-fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32
-march=i386 -mtune=generic -fasynchronous-unwind-tables''
--- End Message ---
--- Begin Message ---
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Subject: |
Re: bug#11719: 24.1; CL argument list error |
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Date: |
Sat, 23 Jun 2012 00:24:57 -0400 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.1.50 (gnu/linux) |
Version: 24.2
> (funcall (function* (lambda ((x . y)) (cons y x))) '(1 . 2))
> returns (2 . 1), as expected and documented.
> In Emacs 24.1, evaluating the above sexp yields this error message:
> Wrong type argument: listp, y
Should be fixed now, thank you,
Stefan
--- End Message ---