From: Stefan Monnier <monnier@IRO.UMontreal.CA>
To: Chong Yidong <cyd@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: The dynamic-docstring-function property
Date: Mon, 30 Dec 2013 07:53:23 -0500 [thread overview]
Message-ID: <jwvwqimqzd5.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <87y535598y.fsf@gnu.org> (Chong Yidong's message of "Sat, 28 Dec 2013 22:40:45 +0800")
> I'm trying to document the feature now, and I don't understand why this
> feature had to be introduced in the first place.
It replaces an undocumented ad-hoc hook used for advice.el.
I'm not sure it's worth the trouble documenting this new feature in the manual.
> Because a non-string value is evaluated, the dynamic-docstring-function
> stuff can be accomplished by setting the function-documentation property
> to the value `(foo ,old-docstring) where `foo' is your processing
> function.
Hmm... indeed maybe that could be used instead (it's not quite
equivalent, in that dynamic-docstring-function is used by add-function,
whereas function-documentation would only work for advice-add, tho
I guess we could add "dummy" symbol indirection to make it possible to
use function-documentation in add-function as well; and in practice the
dynamic docstring feature is only useful for advice-add anyway).
Stefan
next prev parent reply other threads:[~2013-12-30 12:53 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-28 11:10 The dynamic-docstring-function property Chong Yidong
2013-12-28 13:27 ` Stefan Monnier
2013-12-28 14:40 ` Chong Yidong
2013-12-30 12:53 ` Stefan Monnier [this message]
2014-01-01 5:53 ` Chong Yidong
2014-01-02 18:07 ` Stefan Monnier
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