GNU bug report logs - #78530
31.0.50; [PATCH] eglot-code-action-suggestion doesn't call the callback function in the original buffer

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Package: emacs; Reported by: Yuan Fu <casouri@HIDDEN>; Keywords: patch; dated Wed, 21 May 2025 07:43:02 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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Subject: Re: bug#78530: 31.0.50; [PATCH] eglot-code-action-suggestion doesn't
 call the callback function in the original buffer
To: Yuan Fu <casouri@HIDDEN>
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Good catch, good analysis and great commit message.

Just please rename the subject line of the commit message to
start with "Eglot: " if you can.  Makes it easier to identify.  For example=
:

Eglot: always call ElDoc callbacks in correct buffer

Then add a reference to this bug#78530 and push at will.

Jo=C3=A3o




Information forwarded to bug-gnu-emacs@HIDDEN:
bug#78530; Package emacs. Full text available.

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Subject: 31.0.50; [PATCH] eglot-code-action-suggestion doesn't call the 
 callback function in the original buffer
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X-Debbugs-CC: joaotavora@HIDDEN

Copying from the commit message:

Some minor modes adds their own eldoc display function to
'eldoc-display-functions' hook buffer-locally.  So when eldoc
uses 'eldoc-display-functions' to display docs, it should use
the buffer-local value of the hook.

In 'eldoc--invoke-strategy', the code that runs
'eldoc-display-functions' hook is wrapped in a callback function
that eventually gets passed to each documentation function in
'eldoc-documentation-functions'. So now it's the documentation
functions' responsibility to call the eldoc callback in the
original buffer.

All the eglot documentation functions indeed do that, using
'eglot--when-buffer-window' to switch to the original buffer when
calling the eldoc callback. Except for
'eglot-code-action-suggestion'.

This patch fixes that.

This bug was originally reported on eldoc-box [1]. The user
found that eldoc-box's display function are rarely used, while
the minor mode is turned on. This patch fixes the issue.

[1] =
https://github.com/casouri/eldoc-box/issues/126#issuecomment-2896611278

I think we should fix the eldoc callback function so it always uses the
hook value of the hook in the original buffer; at the very least we
should document the pitfall in the docstring of
eldoc-documentation-functions. Jo=C3=A3o, WDYT?

Yuan


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--Apple-Mail=_E636F0BA-AD06-41F0-9B31-BEEC4A5D7D94--




Acknowledgement sent to Yuan Fu <casouri@HIDDEN>:
New bug report received and forwarded. Copy sent to joaotavora@HIDDEN, bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to joaotavora@HIDDEN, bug-gnu-emacs@HIDDEN:
bug#78530; Package emacs. Full text available.
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