From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Alan Mackenzie <acm@muc.de>
Cc: Richard Stallman <rms@gnu.org>, emacs-devel@gnu.org
Subject: Re: Installing cond* in core
Date: Fri, 02 Feb 2024 13:50:11 -0500 [thread overview]
Message-ID: <jwv5xz6lori.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <Zb0JETlycH9QUbW9@ACM> (Alan Mackenzie's message of "Fri, 2 Feb 2024 15:24:01 +0000")
> But that would rule out the possibility of simplifying pcase by
> rewriting it in terms of cond*. ;-)
AFAICT the implementation of `match*` is not designed to handle the task
of matching against several patterns to select which branch to use.
So in order to reimplement `pcase` on top of `match*`s machinery we'd
have to choose between a significant rework/redesign of `match*`, or
a macro-expansion result which performs more repeated tests and
operations at runtime.
Stefan
next prev parent reply other threads:[~2024-02-02 18:50 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-27 21:36 Installing cond* in core Stefan Kangas
2024-01-27 23:33 ` Alan Mackenzie
2024-01-28 0:26 ` Stefan Kangas
2024-01-28 2:43 ` Po Lu
2024-01-28 6:46 ` Eli Zaretskii
2024-01-28 7:21 ` Po Lu
2024-01-28 7:32 ` Eli Zaretskii
2024-01-28 6:14 ` Eli Zaretskii
2024-01-28 15:58 ` Alan Mackenzie
2024-01-28 6:09 ` Eli Zaretskii
2024-01-28 12:38 ` Alan Mackenzie
2024-01-28 13:02 ` Dmitry Gutov
2024-01-28 13:38 ` Alan Mackenzie
2024-01-28 13:48 ` Dmitry Gutov
2024-01-28 14:32 ` Alan Mackenzie
2024-01-28 16:54 ` Dmitry Gutov
2024-01-28 19:14 ` Alan Mackenzie
2024-01-28 19:26 ` Eli Zaretskii
2024-01-28 20:43 ` Dmitry Gutov
2024-01-30 3:56 ` Richard Stallman
2024-01-28 13:19 ` Emanuel Berg
2024-01-28 14:18 ` Eli Zaretskii
2024-01-28 15:26 ` Alan Mackenzie
2024-01-28 15:40 ` Eli Zaretskii
2024-01-30 3:57 ` Richard Stallman
2024-01-28 4:28 ` Stefan Monnier via Emacs development discussions.
2024-01-30 3:58 ` Richard Stallman
2024-01-30 14:33 ` Stefan Monnier
2024-02-02 3:39 ` Richard Stallman
2024-02-02 13:17 ` Stefan Monnier
2024-02-02 15:24 ` Alan Mackenzie
2024-02-02 18:50 ` Stefan Monnier [this message]
2024-02-04 4:47 ` Richard Stallman
2024-02-04 14:12 ` Stefan Monnier
2024-02-06 3:49 ` Richard Stallman
2024-02-05 3:33 ` Richard Stallman
2024-02-05 12:39 ` Stefan Monnier
2024-03-13 2:27 ` Richard Stallman
2024-03-13 3:05 ` Stefan Monnier
2024-03-16 1:45 ` Richard Stallman
2024-03-16 16:15 ` Stefan Monnier
2024-03-18 2:42 ` Richard Stallman
2024-03-18 3:06 ` Stefan Monnier
2024-03-19 9:19 ` Peter Hull
2024-03-20 22:40 ` Richard Stallman
2024-03-20 22:54 ` Stefan Monnier
2024-01-28 14:28 ` Emanuel Berg
2024-01-30 3:58 ` Richard Stallman
2024-01-30 13:04 ` Eli Zaretskii
2024-03-16 20:53 ` Lynn Winebarger
2024-03-18 2:41 ` Richard Stallman
2024-03-19 19:48 ` Lynn Winebarger
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