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Re: Advice function needs argument not used in function, how to avoid co
From: |
Michael Heerdegen |
Subject: |
Re: Advice function needs argument not used in function, how to avoid compiler warning? |
Date: |
Thu, 06 Oct 2022 00:30:28 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) |
Jean Louis <bugs@gnu.support> writes:
> I realize that advice function need argument such as &rest args, but I
> am not using it in the function. And I do not understand what is that
> argument receiving. Anybody may explain it?
>
> I have to do (ignore args) to avoid compiler warning. What does args
> receive?
The arguments of the current call of the advised function, in the case
of an :after advice. In the general case that depends on the kind of
advice (see docstring of `advice-add', the HOW arg).
> (defun hyperscope-after-sort (&rest args)
> (ignore args)
> (hyperscope-highlight))
You can just use `_args` to label the argument as unused by the function
body - it's the same as for all functions.
Michael.