From: Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: "Mattias Engdegård" <mattias.engdegard@gmail.com>
Cc: 67008@debbugs.gnu.org, Ikumi Keita <ikumi@ikumi.que.jp>,
Yuan Fu <casouri@gmail.com>, Dmitry Gutov <dgutov@yandex.ru>
Subject: bug#67008: 30.0.50; Multiple major mode parents
Date: Fri, 17 Nov 2023 09:20:26 -0500 [thread overview]
Message-ID: <jwvfs14ihue.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <735BCDB1-366B-40A6-98F9-CEBC7DAFEBE7@gmail.com> ("Mattias Engdegård"'s message of "Fri, 17 Nov 2023 15:04:24 +0100")
>> Garbage in, garbage out, eh?
> Indeed. Let's document the constraint on the argument and, if it's not
> too expensive, verify.
Duplicates in the input imply a cyclic dependency, so it immediately
fall into the case where the constraints can't be satisfied.
> Are the duplicates essential to proper functioning of `cl--class-allparents`
> and `derived-mode-all-parents`, or would they work just as well with some
> edge of the cycle removed instead?
They'd work as well. It's just significantly more work for very
little benefit.
Stefan
next prev parent reply other threads:[~2023-11-17 14:20 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-09 5:38 bug#67008: 30.0.50; Multiple major mode parents Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-09 7:43 ` Yuan Fu
2023-11-12 22:11 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-16 15:16 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-11 0:01 ` Dmitry Gutov
2023-11-11 4:23 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-11 10:14 ` Mattias Engdegård
2023-11-11 16:20 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-11 18:12 ` Mattias Engdegård
2023-11-11 18:43 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-11 20:13 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-12 13:37 ` Mattias Engdegård
2023-11-12 16:41 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-13 12:45 ` Mattias Engdegård
2023-11-13 13:30 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-13 16:44 ` Mattias Engdegård
2023-11-13 17:46 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-16 11:07 ` Mattias Engdegård
2023-11-16 15:15 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-16 19:35 ` Mattias Engdegård
2023-11-16 21:40 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-17 14:04 ` Mattias Engdegård
2023-11-17 14:20 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2023-11-17 16:15 ` Mattias Engdegård
2023-11-11 12:21 ` Ikumi Keita
2023-11-11 16:57 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-11-12 9:50 ` Ikumi Keita
2023-11-12 16:04 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
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