GNU bug report logs - #47813
28.0.50; Confusing new calling convention for define-minor-mode

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From: Michael Heerdegen <michael_heerdegen <at> web.de>
To: 47813 <at> debbugs.gnu.org
Cc: Stefan Monnier <monnier <at> iro.umontreal.ca>
Subject: bug#47813: 28.0.50; Confusing new calling convention for define-minor-mode
Date: Fri, 16 Apr 2021 03:51:04 +0200

Hello,

the new advertised calling contention for `define-minor-mode' is

| (mode doc &rest body)

Nothing wrong with that, but this part from the doc string:

| If you provide BODY, then you must provide at least one keyword
| argument.

says that the convention as printed is not valid - and indeed it
isn't -- e.g. this errors:

  (define-minor-mode test-mode "..." (if test-mode 17 23))

Is it possible to make that keyword-less case work?  Else the calling
convention should be made clearer in some way.

TIA, Michael.


In GNU Emacs 28.0.50 (build 48, x86_64-pc-linux-gnu, GTK+ Version 3.24.24, cairo version 1.16.0)
 of 2021-04-15 built on drachen
Repository revision: ed6b86457ddf73cc2cb2df6a1cf8dab79a265a93
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12010000
System Description: Debian GNU/Linux bullseye/sid

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