From: Maxim Cournoyer <maxim.cournoyer@gmail.com>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: Ricardo Wurmus <rekado@elephly.net>, guix-devel@gnu.org
Subject: Re: better error messages through assertions
Date: Mon, 28 Feb 2022 11:00:58 -0500 [thread overview]
Message-ID: <87fso3t1z9.fsf@gmail.com> (raw)
In-Reply-To: <87ilszdu0e.fsf@gnu.org> ("Ludovic Courtès"'s message of "Mon, 28 Feb 2022 14:02:09 +0100")
Hello,
Ludovic Courtès <ludo@gnu.org> writes:
> Ricardo Wurmus <rekado@elephly.net> skribis:
>
>> Maxim Cournoyer <maxim.cournoyer@gmail.com> writes:
>>
>>> I hear we now have "field sanitizers" on Guix records; without having
>>> dug the details, it seems to be we could add a predicate validating the
>>> input there?
>>
>> I don’t see how that would help here. In my example the service values
>> themselves are all right. It’s a procedure acting on what it assumes is
>> a list of service values that fails.
>>
>> Record field validation would not have prevented that error.
>
> I think we could validate primarily at the user/core boundary. If the
> ‘services’ field had a sanitizer ensuring it’s a list of services, then
> it’d be fine.
That seems a fine approach to me; thank you for your input. Ricardo,
would you like to give idea a shot and see if it suites the bill? :-).
Maxim
prev parent reply other threads:[~2022-02-28 16:16 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-14 22:32 better error messages through assertions Ricardo Wurmus
2022-02-15 8:48 ` Maxime Devos
2022-02-15 21:45 ` Philip McGrath
2022-02-15 22:15 ` Ricardo Wurmus
2022-02-28 12:59 ` Ludovic Courtès
2022-02-28 16:18 ` Philip McGrath
2022-03-07 10:13 ` Ludovic Courtès
2022-03-28 20:25 ` Philip McGrath
2022-03-30 9:37 ` Ludovic Courtès
2022-03-30 13:28 ` Andy Wingo
2022-04-01 8:47 ` Ludovic Courtès
2022-04-01 19:28 ` Philip McGrath
2022-04-05 12:04 ` Ludovic Courtès
2022-04-01 19:47 ` Philip McGrath
2022-02-22 4:31 ` Arun Isaac
2022-02-25 18:55 ` Maxim Cournoyer
2022-02-26 13:33 ` Ricardo Wurmus
2022-02-26 13:51 ` Maxim Cournoyer
2022-02-28 13:02 ` Ludovic Courtès
2022-02-28 16:00 ` Maxim Cournoyer [this message]
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