GNU bug report logs - #39682
describe-package disabled by help-fns+.elc compiled in older Emacs

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Message #42 received at 39682 <at> debbugs.gnu.org (full text, mbox):

From: Tim Johnson <tim <at> tj49.com>
To: Noam Postavsky <npostavs <at> gmail.com>
Cc: 39682 <at> debbugs.gnu.org, Drew Adams <drew.adams <at> oracle.com>
Subject: Re: bug#39682: 26.3; Help window for list-packages disabled
Date: Thu, 20 Feb 2020 14:14:20 -0900

I'm sorry, but I am not seeing anything that edifies me. Pressing SPC 
does take me through the function, but the edebug instrumentation ends 
at the end of defun without showing me anything that I could share.

But, there is something else that may be helpful:

The source code I am directed to is

.emacs.d/elpa/help-fns+-20170223.733/help-fns+.el

Does it not appear that I am executing an override function perhaps from 
an older version of the helps-fns+ package?

Before I look for an upgrade, I wanted all concerned to read this in 
case you have other analysis in mind.

On 2/20/20 12:30 PM, Noam Postavsky wrote:
> Tim Johnson <tim <at> tj49.com> writes:
>
>> Noam, I am not familiar with edebug.
>>
>> Can you give me some more code examples?
> Basically just put point on the source code of describe-package, and hit
> C-u C-M-x, that will instrument the function.  Then run
> package-menu-describe-package with "?" or however, and you will stop in
> describe-package.  Press space to step through each expression.
>
>> On 2/20/20 11:22 AM, Noam Postavsky wrote:
>>> Tim Johnson <tim <at> tj49.com> writes:
>>>
>>>> (package-desc-p (tabulated-list-get-id))
>>>> just returns t
>>>>     message("No package specified")
>>>>     describe-package(#s(package-desc :name ack :version (1 8) :summary...
>>>>     package-menu-describe-package()
>>> Hmm, very strange.  Could you step through describe-package with edebug,
>>> and see how this condition is getting taken, even though package-desc-p
>>> should apparently be returning t?
>>>
>>>     (if (not (or (package-desc-p package) (and package (symbolp package))))
>>>         (message "No package specified")
>>>
>>>
-- 
Tim
tj49.com

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