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From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: 53227@debbugs.gnu.org, acm@muc.de, larsi@gnus.org, rpluim@gmail.com
Subject: bug#53227: master: Wrong error message with M-: (funcall).
Date: Thu, 13 Jan 2022 19:09:43 -0500	[thread overview]
Message-ID: <jwv8rvjrxh6.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87lezj2nds.fsf@igel.home> (Andreas Schwab's message of "Fri, 14 Jan 2022 01:04:47 +0100")

Andreas Schwab [2022-01-14 01:04:47] wrote:
> On Jan 13 2022, Stefan Monnier wrote:
>>> Why do you need the second pattern?
>> The second pattern should let `pcase` generate better code.
> But it is not needed for this bug.

The actual fix is in the change from

    (`(funcall . ,(or `(,exp . ,args) pcase--dontcare))

to

    (`(funcall ,exp . ,args)

which makes the pattern not match `(funcall . ,_) any more.
The explicit

    (`(funcall . ,_) form)            ;bug#53227

is then present to make sure the first change doesn't worsen the
rest of the resulting macroexpanded code.


        Stefan






  reply	other threads:[~2022-01-14  0:09 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-13  7:39 bug#53227: master: Wrong error message with M-: (funcall) Alan Mackenzie
2022-01-13  9:13 ` Robert Pluim
2022-01-13  9:32   ` Lars Ingebrigtsen
2022-01-13 10:55     ` Andreas Schwab
2022-01-13 14:36       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-01-13 15:37         ` Andreas Schwab
2022-01-13 20:37           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-01-13 21:27             ` Andreas Schwab
2022-01-13 23:52               ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-01-14  0:04                 ` Andreas Schwab
2022-01-14  0:09                   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2022-01-14  0:17                     ` Andreas Schwab
2022-01-14  0:19                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-01-14  9:55                         ` Andreas Schwab
2022-01-14 17:22                           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-01-14  7:36             ` Lars Ingebrigtsen
2022-01-14 17:26               ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-01-13 18:24     ` Alan Mackenzie

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