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From: "Ludovic Courtès" <ludo@gnu.org>
To: Maxim Cournoyer <maxim.cournoyer@gmail.com>
Cc: Katherine Cox-Buday <cox.katherine.e@gmail.com>,  guix-devel@gnu.org
Subject: Re: Layout of ‘define-configuration’ records
Date: Mon, 21 Nov 2022 11:26:32 +0100	[thread overview]
Message-ID: <87v8n8li1z.fsf@gnu.org> (raw)
In-Reply-To: <87fsed3fgc.fsf@gmail.com> (Maxim Cournoyer's message of "Sun, 20 Nov 2022 08:47:47 -0500")

Maxim Cournoyer <maxim.cournoyer@gmail.com> skribis:

> A side-note, it seems that Ludovic has been
> working toward eliminating the use of match patterns matching the fields
> directly, instead encouraging the use of 'match-record', see
> https://issues.guix.gnu.org/59390.  I haven't checked if this is
> compatible with define-configuration records though.

It is: ‘define-configuration’ builds on ‘define-record-type*’, which
builds on SRFI-9, which builds on Guile “records”, which builds on Guile
“structs”.  :-)

--8<---------------cut here---------------start------------->8---
scheme@(guile-user)> ,m (gnu home services desktop)
scheme@(gnu home services desktop)> (home-redshift-configuration)
$1 = #<<home-redshift-configuration> redshift: #<package redshift@1.12 gnu/packages/xdisorg.scm:1430 7f155c3ae210> location-provider: geoclue2 adjustment-method: randr daytime-temperature: 6500 nighttime-temperature: 4500 daytime-brightness: %unset-marker% nighttime-brightness: %unset-marker% latitude: %unset-marker% longitude: %unset-marker% dawn-time: %unset-marker% dusk-time: %unset-marker% extra-content: "" %location: #f>
scheme@(gnu home services desktop)> (match-record $1 <home-redshift-configuration> (adjustment-method nighttime-temperature)
... (list nighttime-temperature adjustment-method))
$2 = (4500 randr)
--8<---------------cut here---------------end--------------->8---

Ludo’.


  reply	other threads:[~2022-11-21 10:27 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-29  3:47 [bug#58855] [PATCH 0/5] Update mcron to latest commit Maxim Cournoyer
2022-10-29  4:16 ` [bug#58855] [PATCH 1/5] services: configuration: Re-order generated record fields Maxim Cournoyer
2022-10-29  4:16   ` [bug#58855] [PATCH 2/5] services: mcron: Add log? and log-format fields to mcron-configuration Maxim Cournoyer
2022-10-29  4:16   ` [bug#58855] [PATCH 3/5] gnu: mcron: Use gexps and strip trailing #t Maxim Cournoyer
2022-10-29  4:16   ` [bug#58855] [PATCH 4/5] gnu: Remove guile2.2-mcron Maxim Cournoyer
2022-10-29  4:16   ` [bug#58855] [PATCH 5/5] gnu: mcron: Update to 1.2.1-0.5fd0ccd Maxim Cournoyer
2022-11-17 22:37   ` Layout of ‘define-configuration’ records Ludovic Courtès
2022-11-18 16:44     ` Maxim Cournoyer
2022-11-19 21:25       ` Katherine Cox-Buday
2022-11-20 13:47         ` Maxim Cournoyer
2022-11-21 10:26           ` Ludovic Courtès [this message]
2022-11-21 20:08             ` Maxim Cournoyer
2022-11-21 16:49           ` Katherine Cox-Buday
2022-11-21 21:00             ` Maxim Cournoyer
2022-11-22 14:52               ` zimoun
2022-11-25 15:18                 ` Maxim Cournoyer
2022-11-21 10:22       ` Ludovic Courtès
2022-11-21 21:16         ` Maxim Cournoyer
2022-11-23 21:56           ` Ludovic Courtès
2022-11-25 15:15             ` Maxim Cournoyer

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