From: Michael Heerdegen <michael_heerdegen@web.de>
To: Wing Hei Chan <whmunkchan@outlook.com>
Cc: 56739@debbugs.gnu.org
Subject: bug#56739: 29.0.50; `cl-psetq' and `cl-psetf' fail to recognize symbol macros
Date: Tue, 02 Aug 2022 04:41:38 +0200 [thread overview]
Message-ID: <87zggntli5.fsf@web.de> (raw)
In-Reply-To: <OSZP286MB1260387EB0097C4D07840B54DA929@OSZP286MB1260.JPNP286.PROD.OUTLOOK.COM> (Wing Hei Chan's message of "Sun, 24 Jul 2022 20:12:10 +0800")
Wing Hei Chan <whmunkchan@outlook.com> writes:
> The following form produces (2 2) due to the failure of detecting
> dependencies involving symbol macros.
>
> (cl-symbol-macrolet ((c a))
> (let ((a 1) (b 2))
> (cl-psetq a b
> b c)
> (list a b)))
Dunno how a good fix would look like - but it is easy to follow why this
error happens: `cl-psetf' analyses the expressions (each second
argument) for whether they are "simple" (independent of the variables):
(if (or (not (symbolp (car p))) (cl--expr-depends-p (nth 1 p) vars))
(setq simple nil))
but the symbol macro is not yet expanded when this is done, and the
expression `c` passes the test - which is wrong.
Maybe that test should just check for symbol macros in addition?
Michael.
next prev parent reply other threads:[~2022-08-02 2:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-24 12:12 bug#56739: 29.0.50; `cl-psetq' and `cl-psetf' fail to recognize symbol macros Wing Hei Chan
2022-08-02 2:41 ` Michael Heerdegen [this message]
2022-08-02 23:59 ` Michael Heerdegen
2022-08-03 0:20 ` Michael Heerdegen
2022-09-05 19:14 ` Lars Ingebrigtsen
2022-09-06 1:29 ` Michael Heerdegen
2022-09-06 2:22 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-07 18:31 ` Stefan Kangas
2023-09-08 3:07 ` Michael Heerdegen
2023-09-09 6:12 ` Michael Heerdegen
2023-09-09 7:08 ` Gerd Möllmann
[not found] ` <f49326d6-85e2-4fed-83ae-815a82cefe30@outlook.com>
2023-09-09 8:03 ` Wing Hei Chan
2023-09-09 9:24 ` Gerd Möllmann
2023-09-09 15:42 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-09-09 16:33 ` Gerd Möllmann
2022-09-06 2:29 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87zggntli5.fsf@web.de \
--to=michael_heerdegen@web.de \
--cc=56739@debbugs.gnu.org \
--cc=whmunkchan@outlook.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.