GNU bug report logs - #47425
26.3; `plist-get', `plist-put' should accept a TEST function

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Package: emacs;

Reported by: Drew Adams <drew.adams <at> oracle.com>

Date: Fri, 26 Mar 2021 22:14:01 UTC

Severity: wishlist

Found in version 26.3

Fixed in version 29.1

Done: Lars Ingebrigtsen <larsi <at> gnus.org>

Bug is archived. No further changes may be made.

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From: Mattias Engdegård <mattiase <at> acm.org>
To: 47425 <at> debbugs.gnu.org
Cc: Philipp Stephani <p.stephani2 <at> gmail.com>, Nicolas Petton <nicolas <at> petton.fr>, Lars Ingebrigtsen <larsi <at> gnus.org>, Drew Adams <drew.adams <at> oracle.com>, Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: bug#47425: 26.3; `plist-get', `plist-put' should accept a TEST function
Date: Mon, 27 Jun 2022 13:31:57 +0200

> I'm not a fan of this since it would mean that these functions will no longer be side-effect-free. Adding a function argument to a function means that the function can no longer really promise anything, so it leads to code that's harder to reason about. 

No fan of it either. A plist is not intended as a general-purpose data structure; the `eq` key comparison is pretty much built in.

The cost of adding an equality predicate is not huge but also not really motivated.
This bug report was last modified 3 years and 58 days ago.

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