From: Carlo Zancanaro <carlo@zancanaro.id.au>
To: Simon Tournier <zimon.toutoune@gmail.com>
Cc: "Guix Devel" <guix-devel@gnu.org>, "Ludovic Courtès" <ludo@gnu.org>
Subject: Re: ice-9 match penalty depending on pattern?
Date: Wed, 07 Feb 2024 10:41:38 +1100 [thread overview]
Message-ID: <87il31upn1.fsf@zancanaro.id.au> (raw)
In-Reply-To: <87wmrh6zwl.fsf@gmail.com> (Simon Tournier's message of "Tue, 06 Feb 2024 22:33:46 +0100")
> ./guix/docker.scm:261: (((head ...) (tail ...) id)
This one is not like the others. However, looking at the context I think
the pattern could just be (head tail id).
> Why not? Do I miss something in the implementation of ’match’?
The only reason I can think of would be if these matches are sometimes
provided improper lists, which need to fail these match conditions. That
seems unlikely to me, but it should be clear from looking at the other
match clauses in each case.
Carlo
next prev parent reply other threads:[~2024-02-06 23:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-06 21:33 ice-9 match penalty depending on pattern? Simon Tournier
2024-02-06 23:41 ` Carlo Zancanaro [this message]
2024-02-07 9:22 ` Simon Tournier
2024-02-24 16:27 ` Ludovic Courtès
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