GNU bug report logs - #50067
Context menus

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Message #84 received at 50067 <at> debbugs.gnu.org (full text, mbox):

From: Juri Linkov <juri <at> linkov.net>
To: Mattias Engdegård <mattiase <at> acm.org>
Cc: tkk <at> misasa.okayama-u.ac.jp, Tak Kunihiro <homeros.misasa <at> gmail.com>,
 50067 <at> debbugs.gnu.org, Lars Ingebrigtsen <larsi <at> gnus.org>,
 Alan Third <alan <at> idiocy.org>
Subject: Re: bug#50067: Context menus
Date: Fri, 20 Aug 2021 10:31:07 +0300

>> Yes it works for elisp, because its xref backend is simplistic enough to
>> just accept the symbol given as argument. An example of a package where
>> it doesn't work is merlin which is rather more sophisticated and wants to
>> find the exact context so that it can find the right definition, so it
>> ignores the argument.
>
> Having actually read the doc strings I see that xref backends are supposed
> to define `xref-backend-identifier-at-point` which can stuff any
> information it needs in a property of the string it returns, as sort of
> a semi-covert channel to `xref-backend-definitions` etc. Sorry about the
> unfounded complaint.
>
> Would adding `xref-find-references-at-mouse` be handy for use in the context menu?

If the existing `xref-backend-identifier-at-point` can't be reused
by adding a new optional arg `click`, then a cleaner solution
would be to add `xref-backend-identifier-at-mouse` indeed.

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