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bug#32029: PATCH: xref-find-definitions-at-mouse

From: Dmitry Gutov
Subject: bug#32029: PATCH: xref-find-definitions-at-mouse
Date: Tue, 3 Jul 2018 16:15:31 +0300
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0

On 7/2/18 2:18 AM, Tobias Gerdin wrote:

+(defun xref-find-definitions-at-mouse (event)
+  "Find the definition of identifier around mouse click."
+  (interactive "e")
+  (let* ((backend (xref-find-backend))
+     (identifier (save-excursion
+              (mouse-set-point event)
+              (xref-backend-identifier-at-point backend))))
+    (if identifier
+    (xref--find-definitions identifier nil)
+      (user-error "No identifier here"))))

You should call `mouse-set-point` before `xref-find-backend`, because the latter might conceivably depend on the value of point.

I think this can be written much shorter (call mouse-set-point, then interactively call xref-find-definitions), but I'm not sure how.

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