From: Philipp Stephani <p.stephani2@gmail.com>
To: Pip Cet <pipcet@gmail.com>
Cc: 43100@debbugs.gnu.org, Stefan Monnier <monnier@iro.umontreal.ca>
Subject: bug#43100: 28.0.50; pcase not binding variables conditionally
Date: Sat, 29 Aug 2020 14:01:45 +0200 [thread overview]
Message-ID: <CAArVCkTPrDJoPXw+s5qzHqwygSut25E-eKXp+vDzp0-E+6n1PA@mail.gmail.com> (raw)
In-Reply-To: <CAOqdjBde5Xkfx9076tNPrhhcpXjo+h-DWawZeeOLwj6U3JTbPQ@mail.gmail.com>
Am Sa., 29. Aug. 2020 um 11:42 Uhr schrieb Pip Cet <pipcet@gmail.com>:
>
> I'm having trouble with pcase's behavior.
>
> (pcase "a"
> ((or (pred symbolp) name)
> (let ((foo 'bar)) name)))
>
> throws an error. It shouldn't.
Isn't this case documented in the manual? The last section of
https://www.gnu.org/software/emacs/manual/html_node/elisp/pcase-Macro.html
states:
"It makes no sense for each sub-pattern [in an `or' sequence] to
let-bind a different set of symbols because the body forms have no way
to distinguish which sub-pattern matched and choose among the
different sets."
next prev parent reply other threads:[~2020-08-29 12:01 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-29 9:41 bug#43100: 28.0.50; pcase not binding variables conditionally Pip Cet
2020-08-29 12:01 ` Philipp Stephani [this message]
2020-08-29 14:27 ` Pip Cet
2020-08-29 16:06 ` Stefan Monnier
2020-08-30 16:21 ` Pip Cet
2020-08-30 18:07 ` Stefan Monnier
2020-08-31 19:32 ` Pip Cet
2020-09-01 3:12 ` Stefan Monnier
2020-09-02 8:38 ` Pip Cet
2020-09-02 14:16 ` Stefan Monnier
2020-09-05 14:36 ` Pip Cet
2020-09-05 16:52 ` Stefan Monnier
2021-03-02 13:38 ` Pip Cet
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