GNU bug report logs - #20600
24.5.3: add-hook - wrong arguments error

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Package: emacs;

Reported by: Andreas Röhler <andreas.roehler <at> easy-emacs.de>

Date: Mon, 18 May 2015 05:35:02 UTC

Severity: wishlist

Tags: notabug, wontfix

Found in version 24.5.3

Done: Glenn Morris <rgm <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Artur Malabarba <bruce.connor.am <at> gmail.com>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 20600 <at> debbugs.gnu.org
Subject: bug#20600: 24.5.3: add-hook - wrong arguments error
Date: Mon, 18 May 2015 18:29:25 +0100

2015-05-18 17:47 GMT+01:00 Stefan Monnier

>> Still, it sounds like it might be useful for run-hooks to properly handle
>> functions whose arity is less than the expected arity.
>
> I have no idea what kind of "properly handle" you're thinking of.

(add-hook '1-arity-functions 'some-zero-arity-function)
(run-hooks '1-arity-functions some-arg)

Here, it will throw an error because run-hooks will try to call
(some-zero-arity-function some-arg). That's all fine and well
documented, I'm just saying it may be more convenient if run-hooks
took care to check that some-zero-arity-function has zero arity and
invoked it without arguments.
This bug report was last modified 10 years and 10 days ago.

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