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From: "T.V Raman" <raman@google.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Tim Cross <theophilusx@gmail.com>,  emacs-devel@gnu.org
Subject: Re: defadvice bug or something else?
Date: Wed, 28 Apr 2021 20:15:40 -0700	[thread overview]
Message-ID: <p9135v9rdb7.fsf@google.com> (raw)
In-Reply-To: <jwvfsz9g827.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Wed, 28 Apr 2021 22:07:09 -0400")

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Thanks Tim for posting the repro case, and thanks Stefan for the pointer
to the optional 'update arg to window -end -- this fixes the bug in
emacspeak that Tim reported recently.


Stefan Monnier <monnier@iro.umontreal.ca> writes:

>>   `(defadvice ,f (after emacspeak pre act comp)
>>      (message "scroll advice: start = %d end = %d diff = %d"
>>               (window-start)
>>               (window-end)
>>               (- (window-end) (window-start))))))
>
> I think this may return outdated values for `window-end` because it is
> run before the window end position has been recomputed by redisplay.
> If that's not what you want, then you need to pass non-nil value for the
> `update` argument.
>
>
>         Stefan
>
>

-- 

Thanks,

--Raman
7©4 Id: kg:/m/0285kf1  •0Ü8



  reply	other threads:[~2021-04-29  3:15 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-29  1:17 defadvice bug or something else? Tim Cross
2021-04-29  2:07 ` Stefan Monnier
2021-04-29  3:15   ` T.V Raman [this message]
2021-04-29  4:22   ` Tim Cross
2021-04-29  4:11 ` dick.r.chiang
2021-04-29  4:55   ` Tim Cross

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