GNU bug report logs - #42232
Fix for lisp/allout-widgets void variable

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Ken Manheimer <ken.manheimer <at> gmail.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#42232: closed (Fix for lisp/allout-widgets void variable)
Date: Mon, 20 Jul 2020 19:22:02 +0000

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Your message dated Mon, 20 Jul 2020 15:20:49 -0400
with message-id <CAAT_zTEU3DK56ukhosR7wTnWnJX13WLYqJxv0KtyhyVSDR83Hg <at> mail.gmail.com>
and subject line Re: bug#42232: Acknowledgement (Fix for lisp/allout-widgets void variable)
has caused the debbugs.gnu.org bug report #42232,
regarding Fix for lisp/allout-widgets void variable
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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42232: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=42232
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Contact help-debbugs <at> gnu.org with problems

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From: Ken Manheimer <ken.manheimer <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Fix for lisp/allout-widgets void variable
Date: Mon, 6 Jul 2020 13:43:06 -0400

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The attached patch provides for a background void-variable error that
happens when parts of an outline are being concealed. Because the error
happens via the after-change-functions hook, it was being caught by an
allout provision and reported in the mode line.

To see the error before applying the patch, make a simple outline, activate
allout-mode, and then conceal a part of the outline by positioning on the
item whose contents you can hide and using `allout-hide-current-subtree'
(by default, bound to '\C-c SPC \C-h'). When the problem occurs you will
see a message in the mode line, like:

allout-widgets-last-hook-error stored,
allout-widgets-hook-error-handler/error (void-variable handled-conceal)
 6-Jul-2020 01:10:58 PM

You can then see that message and a full backtrace in the *Messages* buffer.

(The let declaration for the variable was probably removed because use of
the variable is oblique. It happens through `(symbol-value handling)'.)

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[0001-Provide-missing-let-definition-to-prevent-background.patch (application/octet-stream, attachment)]

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From: Ken Manheimer <ken.manheimer <at> gmail.com>
To: 42232-done <at> debbugs.gnu.org
Subject: Re: bug#42232: Acknowledgement (Fix for lisp/allout-widgets void
 variable)
Date: Mon, 20 Jul 2020 15:20:49 -0400

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Fix committed in 3c410b6b4753e02269bb36914e7534eb124150dd and pushed to
main repository main and (mistakenly) emacs-27 branches

On Mon, Jul 6, 2020 at 1:44 PM GNU bug Tracking System <help-debbugs <at> gnu.org>
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