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bug#48666: Leaks are still possible in hook--depth-alist
From: |
Stefan Monnier |
Subject: |
bug#48666: Leaks are still possible in hook--depth-alist |
Date: |
Tue, 22 Feb 2022 10:25:35 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) |
jakanakaevangeli@chiru.no [2021-05-26 10:57:47] wrote:
> (with-temp-buffer
> (add-hook 'post-command-hook (make-symbol "fun-sym") 77 t))
> (get 'post-command-hook 'hook--depth-alist)
> Perhaps hook--depth-alist could be a hash table with weak keys.
I just pushed to `master` a patch which should hopefully fix this
problem for good (basically, the depth alist is now kept in an(other)
variable (so for functions added to the buffer-local portion of the
hook, the depth is stored in the buffer-local portion of the depth
variable)).
I hope it will also fix the problems seen in
https://github.com/minad/corfu/issues/133
It makes it a bit harder to check if the old problem is still present or
not, OTOH, because the depth-alist isn't just a quick (get <hook>
'hook--depth-alist) away but you need to (symbol-value (get <hook>
'hook--depth-alist)) and that will only show you the global portion or
the portion relevant to the current buffer.
Stefan
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