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From: "Ludovic Courtès" <ludo@gnu.org>
To: Herman Rimm <herman@rimm.ee>
Cc: Josselin Poiret <dev@jpoiret.xyz>,
	Maxim Cournoyer <maxim.cournoyer@gmail.com>,
	Simon Tournier <zimon.toutoune@gmail.com>,
	Mathieu Othacehe <othacehe@gnu.org>,
	Tobias Geerinckx-Rice <me@tobias.gr>,
	75010@debbugs.gnu.org, Christopher Baines <guix@cbaines.net>
Subject: [bug#75010] [PATCH 1/7] monads: Add 'mmatch'.
Date: Mon, 30 Dec 2024 13:34:19 +0100	[thread overview]
Message-ID: <87y0zxs62c.fsf@gnu.org> (raw)
In-Reply-To: <4bfa279cae2316d7a7a4e0640d13a0763ad86f92.1734798943.git.herman@rimm.ee> (Herman Rimm's message of "Sat, 21 Dec 2024 18:04:05 +0100")

Herman Rimm <herman@rimm.ee> skribis:

> * doc/guix.texi (The Store Monad): Document mmatch.
> * guix/monads.scm (mmatch): Add macro.
>
> Change-Id: I558f8e025f6cf788c9fc475e99d49690d7a98f41

[...]

> +@defmac mmatch monad mexp (pattern body) @dots{}
> +Match monadic object @var{mexp} against clause @var{pattern}s, in the

I’m not convinced by this one: usually, monadic procedures take a
“normal” value and return a monadic value.  So the style of this macro
is quite unusual.  Also it doesn’t save much typing compared to an
‘mlet’ followed by ‘match’.

WDYT?

Ludo’.




  reply	other threads:[~2024-12-30 12:35 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <cover.1734798943.git.herman@rimm.ee>
2024-12-21 17:04 ` [bug#75010] [PATCH 1/7] monads: Add 'mmatch' Herman Rimm via Guix-patches via
2024-12-30 12:34   ` Ludovic Courtès [this message]
2024-12-21 17:04 ` [bug#75010] [PATCH 2/7] gnu: machine: ssh: Refactor roll-back-managed-host Herman Rimm via Guix-patches via
2024-12-30 12:09   ` Ludovic Courtès
2024-12-21 17:04 ` [bug#75010] [PATCH 3/7] gnu: machine: ssh: Return monadic value from roll-back-managed-host Herman Rimm via Guix-patches via
2024-12-30 12:36   ` Ludovic Courtès
2024-12-21 17:04 ` [bug#75010] [PATCH 4/7] Rename two remote variables confusingly named 'generations' Herman Rimm via Guix-patches via
2024-12-21 17:04 ` [bug#75010] [PATCH 5/7] gnu: machine: Remove &deploy-error Herman Rimm via Guix-patches via
2024-12-21 17:04 ` [bug#75010] [PATCH 6/7] gnu: machine: ssh: Roll-back on failure Herman Rimm via Guix-patches via
2024-12-21 17:04 ` [bug#75010] [PATCH 7/7] WIP: gnu: tests: Add module for guix deploy tests Herman Rimm via Guix-patches via
2024-12-30 12:21   ` Ludovic Courtès

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