GNU bug report logs - #3984
23.0.96; defadvice of call-interactively defeats interactive-p

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Package: emacs;

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

Date: Thu, 30 Jul 2009 22:45:04 UTC

Severity: minor

Done: Stefan Monnier <monnier <at> iro.umontreal.ca>

Bug is archived. No further changes may be made.

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Message #10 received at 3984 <at> emacsbugs.donarmstrong.com (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Drew Adams <drew.adams <at> oracle.com>
Cc: 3984 <at> debbugs.gnu.org, <emacs-pretest-bug <at> gnu.org>
Subject: Re: bug#3984: 23.0.96; defadvice of call-interactively defeats interactive-p
Date: Thu, 30 Jul 2009 21:58:51 -0400

> Can someone please explain why this happens, or how to work around it?
 
Because the implementation of interactive-p (and called-interactively-p)
is brittle: it looks at the latest stack frames to see the name of the
caller, so if you add things between the call to `call-interactively'
and the corresponding function call, it gets confused.

To work around it, don't use `interactive-p' and instead add an optional
argument (call it `interactive') to your function and pass it an
explicit non-nil value from the interactive spec.


        Stefan
This bug report was last modified 11 years and 243 days ago.

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