Re: Xref completion

[William Xu <william.xwl@gmail.com>]

Dmitry Gutov <dgutov@yandex.ru> writes:

> On 17.11.2020 23:16, William Xu wrote:
>> (defun my-xref--show-defs-minibuffer (fetcher alist)
>>    (let* ((xrefs (funcall fetcher))
>>           (xref-alist (xref--analyze xrefs))
>>           (xref (if (not (cdr xrefs))
>>                     (car xrefs)
>>                   (cadr (assoc (completing-read "Jump to definition: " xref-alist)
>>                                xref-alist)))))
>>      (xref-pop-to-location xref (assoc-default 'display-action alist))))
>
> A solid try, but note you might have a problem when there are several
> matches in the same file: you won't be able to navigate to any but the 
> first one.
>
> Of course, depending on your current programming language, this might
> be not important.

In that case, we can just prepend the line and summary in front of the filename? 

(defun my-xref--show-defs-minibuffer (fetcher alist)
  (let* ((xrefs (funcall fetcher))
         (xref-alist (xref--analyze xrefs))
         xref-alist-with-line-info
         xref)

    (cl-loop for ((group . xrefs) . more1) on xref-alist
             do
             (cl-loop for (xref . more2) on xrefs do
                      (with-slots (summary location) xref
                        (let ((line (xref-location-line location)))
                          (push (cons (format "%d: %s %s" line summary group) xref)
                                xref-alist-with-line-info)))))

    (setq xref (if (not (cdr xrefs))
                   (car xrefs)
                 (cdr (assoc (completing-read "Jump to definition: " xref-alist-with-line-info)
                             xref-alist-with-line-info))))

    (xref-pop-to-location xref (assoc-default 'display-action alist))))

-- 
William