Subject: Re: bug#17272: bug#19064: bug#17272: bug#19064: 25.0.50; `message' overwrites `y-or-n-p' prompt, so user misses it

From: Juri Linkov <[email-masked]>
Date: Thu, 21 Nov 2019 23:54:13 +0200

>>> The first case is when doing completion, the message
>>> "Making completion list..." is displayed in the minibuffer
>>> for 2 seconds. I don't understand why this message is needed at all,
>>> but at least this patch restores its previous behavior
>>> that displays that message in the echo area and doesn't wait.
>>
>> Perhaps some completion functions can take a lot of time, so we message
>> preemptively?  We do a lot of the "just in case" messaging in Emacs,
>> unfortunately.
>>
>> (There's a wishlist bug report in the bug tracker to add something like
>>
>>   (with-delayed-message (0.5 "This sure is taking long...")
>>     (here-is-some-code))
>>
>> that would only do the message if the body of the form takes longer than
>> the timeout.)
>
> I see, it's in bug#22922 and bug#19776.

But should the function itself report its own progress
using progress-reporter-update?