From: Maxime Devos <maximedevos@telenet.be>
To: Philip McGrath <philip@philipmcgrath.com>, 52749@debbugs.gnu.org
Subject: bug#52749: G-expressions don't consistently preserve #nil
Date: Thu, 23 Dec 2021 06:59:58 +0000 [thread overview]
Message-ID: <6211bc6e48fa8f5dcf8711bba186812f3a5e52c4.camel@telenet.be> (raw)
In-Reply-To: <23d2ac1d-737d-787c-5535-c816566461dd@philipmcgrath.com>
Hi,
Philip McGrath schreef op wo 22-12-2021 om 23:25 [-0500]:
> G-expressions currently do not consistently preserve the distinction
> between #nil and '(), which causes trouble for programs that rely on
> that distinction. In particular, the issue affects programs that use
> (guix build json), because that library uses #nil to represent the JSON
> value `null', whereas it uses '() to represent an empty JSON array.
The constant #nil is only for elisp compatibility and not something
supposed to be used in Scheme code that isn't for Scheme/elisp
compatibility, so this seems more a bug in (guix build json) to me.
Greetings,
Maxime.
next prev parent reply other threads:[~2021-12-23 7:01 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-23 4:25 bug#52749: G-expressions don't consistently preserve #nil Philip McGrath
2021-12-23 6:59 ` Maxime Devos [this message]
2021-12-25 11:13 ` Maxime Devos
2021-12-27 18:38 ` Philip McGrath
2021-12-27 20:24 ` Maxime Devos
2022-01-03 10:28 ` Maxime Devos
2022-01-03 10:49 ` Maxime Devos
2021-12-23 17:58 ` Maxime Devos
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