GNU bug report logs - #68509
30.0.50; pcase-dolist matches backquote pattern incorrectly

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Package: emacs;

Reported by: Ihor Radchenko <yantar92 <at> posteo.net>

Date: Tue, 16 Jan 2024 15:06:01 UTC

Severity: normal

Found in version 30.0.50

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From: Ihor Radchenko <yantar92 <at> posteo.net>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Jim Porter <jporterbugs <at> gmail.com>, 68509 <at> debbugs.gnu.org
Subject: bug#68509: 30.0.50; pcase-dolist matches backquote pattern incorrectly
Date: Wed, 21 Feb 2024 11:23:17 +0000
Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

>>> In the current use of those primitives, it's routine/normal/common for
>>> a pattern like `(,a ,b) to encounter lists of different length than 2,
>>> so a warning should be emitted only if specifically requested via an
>>> option/keyword.
>> But isn't it undocumented?
>
> AFAIK the "best" documentation we have for that is the one in
> `pcase-let`, which is indeed unsatisfactory.

May you then describe in more details what is the intended behavior when
PATTERN does not match VALUE in destructuring?

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>




This bug report was last modified 1 year and 112 days ago.

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