From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Leo Liu <sdl.web@gmail.com>
Cc: 19670@debbugs.gnu.org
Subject: bug#19670: 24.4; pcase-let bug?
Date: Sat, 24 Jan 2015 00:07:41 -0500 [thread overview]
Message-ID: <jwva918u5s6.fsf-monnier+emacsbugs@gnu.org> (raw)
In-Reply-To: <m27fwckig6.fsf@gmail.com> (Leo Liu's message of "Sat, 24 Jan 2015 10:42:33 +0800")
> 1 produces (1) and 2 nil. Bug?
Feature: the `pcase' form can have several branches (and defaults to
nil if no branch matches), whereas the `pcase-let' form doesn't have the
luxury of a "default case if it doesn't match", so we have to choose
between "signal an error if it doesn't match" or "pretend it matched".
I opted for the second choice.
Stefan
next prev parent reply other threads:[~2015-01-24 5:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-24 2:42 bug#19670: 24.4; pcase-let bug? Leo Liu
2015-01-24 5:07 ` Stefan Monnier [this message]
2015-01-26 14:27 ` Leo Liu
2015-01-26 22:59 ` Stefan Monnier
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