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bug#50042: 26.3; Post-command hooks slow with M-x commands
From: |
Lars Ingebrigtsen |
Subject: |
bug#50042: 26.3; Post-command hooks slow with M-x commands |
Date: |
Fri, 13 Aug 2021 14:27:42 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) |
Simon Katz <sk@nomistech.com> writes:
> Here's a startup file that can be used to show this (also at
Simpler repro:
(add-hook 'post-command-hook
(lambda ()
(let ((inhibit-message t))
(message "foo: %s" this-command))))
(display-buffer "*Messages*")
M-x previous-line
I think this has something to do with the
You can run the command ‘previous-line’ with C-p
stuff -- if the `M-x' command in question isn't bound to anything,
`post-command-hook' is run immediately instead of after a two-second
timeout.
Hm... yup:
`execute-extended-command' ends with
(when binding
(with-temp-message
(format-message "You can run the command `%s' with %s"
function
(if (stringp binding)
(concat "M-x " binding " RET")
(key-description binding)))
(sit-for (if (numberp suggest-key-bindings)
suggest-key-bindings
2))))))))
So presumably `post-command-hook' isn't run after that timeout has
completed.
Uhm... anybody got any ideas how to fix this? I mean, in one way it's
behaving as it's supposed to -- the command really isn't finished after
this sit-for has finished.
On the other hand, it's pretty awkward.
Could we yank this out of the flow and run it from a timer (fired
immediately) instead?
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
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