GNU bug report logs - #68244
hash-table improvements

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Message #169 received at 68244 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Mattias Engdegård <mattias.engdegard <at> gmail.com>
Cc: Gerd Möllmann <gerd.moellmann <at> gmail.com>,
 Dmitry Gutov <dmitry <at> gutov.dev>, Eli Zaretskii <eliz <at> gnu.org>,
 68244 <at> debbugs.gnu.org, Stefan Kangas <stefankangas <at> gmail.com>
Subject: Re: bug#68244: hash-table improvements
Date: Tue, 13 Feb 2024 07:43:50 -0500

> A more worrying problem is code that uses `obarray-make` but assumes the
> result to be vectors.  It may be unsafe to let obarray-make return an obarray
> object for that reason.

I don't think it'd be "unsafe": it just introduces a bit
of incompatibility.
But `obarrayp` has been with us since Emacs-25 and it's trivial to
change code using `vectorp`, so I wouldn't worry about it.

> With Stefan's suggestion, if I understood it right,
> we'd have `obarray-make` return (vector 0).

I did not suggest such a thing.


        Stefan

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