From: Lars Ingebrigtsen <larsi@gnus.org>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: 26960@debbugs.gnu.org, 8711@debbugs.gnu.org,
Helmut Eller <eller.helmut@gmail.com>
Subject: bug#8711: bug#26960: 26.0.50; Complaints about unused variable in cl-destructuring-bind
Date: Mon, 09 May 2022 11:25:38 +0200 [thread overview]
Message-ID: <8735hjdpm5.fsf@gnus.org> (raw)
In-Reply-To: <jwv4k20yytp.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Sun, 08 May 2022 09:32:01 -0400")
Stefan Monnier <monnier@iro.umontreal.ca> writes:
> Indeed. If you look at the macroexpanded code, you see that
> `cl-destructuring-bind` uses:
>
> (let* ((_ '(1 2))
> (a _)
> (b (if _ (pop _)
> (signal 'wrong-number-of-arguments
> (list '(&whole a b &rest _) (length _))))))
> (print (list a b)))
>
> so, you can see that the problem is that `cl-destructuring-bind` tries
> to avoid using gensym and "abuses" the &rest var as the "iterator"
> variable while parsing the list.
Hm, right.
I had a quick peek at `cl--do-arglist' (which I guess is what's creating
this form), and... I think I'll leave this for somebody else to fix. 🫠
In any case, I'm unmerging these two bug reports, and closing the one
that's fixed.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
next prev parent reply other threads:[~2022-05-09 9:25 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-21 18:44 bug#8711: 24.0.50; binding _ to unused values with lexical-binding Helmut Eller
2011-05-23 9:01 ` Lawrence Mitchell
2011-05-23 14:24 ` Stefan Monnier
2011-05-23 18:23 ` Helmut Eller
2011-05-23 19:29 ` Stefan Monnier
2011-05-23 20:16 ` Helmut Eller
2011-05-24 0:56 ` Stefan Monnier
2011-05-24 6:01 ` Helmut Eller
2011-05-24 12:42 ` Stefan Monnier
2011-06-02 11:17 ` Juanma Barranquero
2011-06-02 12:45 ` Stefan Monnier
2011-06-02 13:41 ` Juanma Barranquero
2011-06-02 14:00 ` Stefan Monnier
2011-06-02 17:10 ` Juanma Barranquero
2011-05-23 20:32 ` Helmut Eller
2011-05-24 0:51 ` Stefan Monnier
2022-05-08 12:33 ` bug#8711: bug#26960: 26.0.50; Complaints about unused variable in cl-destructuring-bind Lars Ingebrigtsen
2022-05-08 13:32 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-05-09 9:25 ` Lars Ingebrigtsen [this message]
2022-05-09 12:26 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
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