From: Michael Heerdegen <michael_heerdegen@web.de>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: laszlomail@protonmail.com, Eli Zaretskii <eliz@gnu.org>,
45333@debbugs.gnu.org
Subject: bug#45333: complex command history should not save optional nil parameters
Date: Tue, 05 Jul 2022 21:43:13 +0200 [thread overview]
Message-ID: <87fsjfs5v2.fsf@web.de> (raw)
In-Reply-To: <87bku3ml4x.fsf@gnus.org> (Lars Ingebrigtsen's message of "Tue, 05 Jul 2022 21:09:50 +0200")
Lars Ingebrigtsen <larsi@gnus.org> writes:
> > everything depends on how you define "signature" and where get it from.
> > Does adding an :around advice change the signature of a command?
>
> This isn't a language design issue. We're talking about making the
> history prettier where it's 100% safe to do so, and nothing more than
> that.
My question is if 100% safe cases exist? For example:
#+begin_src emacs-lisp
(defun test (&optional x)
(interactive)
x)
(advice-add 'test :around (defun test-ad (f &rest args) args))
#+end_src
the signature of `test' is still `(test &optional X)` as reported by C-h
f although the function is able to distinguish a specified nil from a
not specified optional argument.
What you suggest might still be doable by obtaining the effective
signature differently... but I still don't like the idea.
Michael.
next prev parent reply other threads:[~2022-07-05 19:43 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-20 9:01 bug#45333: complex command history should not save optional nil parameters novim via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-06-07 11:57 ` Lars Ingebrigtsen
2022-06-07 13:15 ` Eli Zaretskii
2022-06-07 13:20 ` Eli Zaretskii
2022-06-08 11:43 ` Lars Ingebrigtsen
2022-06-08 13:57 ` Eli Zaretskii
2022-06-09 10:22 ` Lars Ingebrigtsen
2022-06-09 10:33 ` Eli Zaretskii
2022-06-10 8:52 ` Lars Ingebrigtsen
2022-07-05 14:16 ` Michael Heerdegen
2022-07-05 14:53 ` Drew Adams
2022-07-05 16:41 ` Lars Ingebrigtsen
2022-07-05 18:45 ` Michael Heerdegen
2022-07-05 18:48 ` Lars Ingebrigtsen
2022-07-05 19:06 ` Michael Heerdegen
2022-07-05 19:09 ` Lars Ingebrigtsen
2022-07-05 19:43 ` Michael Heerdegen [this message]
2022-07-05 19:50 ` Lars Ingebrigtsen
2022-07-05 20:00 ` Drew Adams
2022-07-05 20:49 ` Lars Ingebrigtsen
2022-07-05 22:37 ` Drew Adams
2022-07-06 18:41 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-07 7:29 ` Lars Ingebrigtsen
2022-07-07 9:45 ` Lars Ingebrigtsen
2022-07-07 10:00 ` Stefan Kangas
2022-07-07 10:06 ` Lars Ingebrigtsen
2022-07-07 13:54 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-07 14:10 ` Lars Ingebrigtsen
2022-07-07 14:49 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-07 14:52 ` Lars Ingebrigtsen
2022-07-07 15:05 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-07 15:21 ` Lars Ingebrigtsen
2022-07-07 15:30 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-07 18:00 ` Lars Ingebrigtsen
2022-07-07 13:58 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-07-05 20:15 ` Drew Adams
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