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From: Marco Antoniotti <marcoxa@gmail.com>
To: 70597@debbugs.gnu.org
Subject: bug#70597: Problem in pcase-let?
Date: Fri, 26 Apr 2024 20:00:02 +0200	[thread overview]
Message-ID: <CAKmY7cWtrOZ5gCgELraucvznb+6+72mZpGHoMdcKeEeuAwL3sQ@mail.gmail.com> (raw)

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Hi

This is for GNU Emacs 29.2 (build 2, x86_64-w64-mingw32) of 2024-02-01
running on Windows 11.

I just noticed the following with pcase-let and pcase.  I believe this is a
problem with pcase-let.  The following is a IELM transcript.  The second
plet-case should, IMHO, fail.

ELISP> (pcase-let ((`(let ,bs (*when *,c . ,r)) '(let ((foo 42)) (*when *1
2 3))))
         (list 'bs bs 'c c 'r r))
(bs
 ((foo 42))
 c 1 r
 (2 3))

ELISP> (pcase-let ((`(let ,bs (*when *,c . ,r)) '(let ((foo 42)) (*zot *1 2
3))))
         (list 'bs bs 'c c 'r r))
(bs
 ((foo 42))
 c 1 r
 (2 3))

ELISP> (pcase '(let ((foo 42)) (*when *1 2 3))
         (`(let ,bs (*zot *,c . ,r)) (list 'bs bs 'c c 'r r)))
nil

pcase correctly fails to match *when *and *zot*, while pcase-let seems to
happily go ahead.

All the best

-- 
Marco Antoniotti
Somewhere over the Rainbow

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             reply	other threads:[~2024-04-26 18:00 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-26 18:00 Marco Antoniotti [this message]
2024-04-27 16:11 ` bug#70597: Problem in pcase-let? Bruno Barbier
2024-04-27 22:28   ` Marco Antoniotti
2024-04-28 10:01     ` Bruno Barbier
2024-04-28 10:07       ` Ihor Radchenko
2024-04-28 10:18         ` Eli Zaretskii
2024-04-28 15:22     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-04-28 15:38       ` Marco Antoniotti
2024-04-28 17:05         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-04-28 18:22           ` Marco Antoniotti
2024-04-28 21:08             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-05-02  9:23               ` Eli Zaretskii
2024-05-02 11:06                 ` Marco Antoniotti
2024-05-04 11:35                   ` Eli Zaretskii
2024-05-04 12:06                     ` Marco Antoniotti
2024-05-04 15:05                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2024-05-05  8:49                         ` Marco Antoniotti
2024-05-04 15:23               ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors

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