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Implement navigate through symbol occurrences in emacs #890

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Implement navigate through symbol occurrences in emacs #890

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51 changes: 45 additions & 6 deletions emacs/tern.el
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Original file line number Diff line number Diff line change
Expand Up @@ -412,17 +412,54 @@ list of strings, giving the binary name and arguments.")
(run-with-timer tern-flash-timeout nil 'delete-overlay overlay)))

(defun tern-do-highlight (data)
(cl-loop for ref across (cdr (assq 'refs data)) do
(let ((file (cdr (assq 'file ref))))
(when (string= buffer-file-name (expand-file-name file (tern-project-dir)))
(let ((start (1+ (cdr (assq 'start ref))))
(end (1+ (cdr (assq 'end ref)))))
(tern-flash-region start end))))))
(cl-loop for ref in (apply 'append (cdr (tern-do-get-refs data))) do
(apply 'tern-flash-region ref)))

(defun tern-highlight-refs ()
(interactive)
(tern-run-query #'tern-do-highlight "refs" (point)))

(defun tern-do-goto-next (data)
"Get refs from DATA and go to next ref"
(cl-destructuring-bind (file current-ref prev-refs next-refs) (tern-do-get-refs data)
(cl-destructuring-bind (start end) (if next-refs
(car next-refs)
(car (last prev-refs)))
(tern-go-to-position file start)
(tern-flash-region start end))))

(defun tern-do-goto-prev (data)
"Get refs from DATA and go to previous ref"
(cl-destructuring-bind (file current-ref prev-refs next-refs) (tern-do-get-refs data)
(cl-destructuring-bind (start end) (if prev-refs
(car prev-refs)
(car (last next-refs)))
(tern-go-to-position file start)
(tern-flash-region start end))))

(defun tern-do-get-refs (data)
"Parse DATA and return a list with (file current-ref prev-refs next-refs)"
(cl-loop for ref across (cdr (assq 'refs data))
for start = (1+ (cdr (assq 'start ref)))
for end = (1+ (cdr (assq 'end ref)))
for file = (expand-file-name (cdr (assq 'file ref)) (tern-project-dir))
if (string= buffer-file-name file)
if (< end (point)) collect (list start end) into prev-refs
else if (> start (point)) collect (list start end) into next-refs
else collect (list start end) into current-ref
finally return (list file
current-ref
(cl-sort prev-refs '> :key 'car)
(cl-sort next-refs '< :key 'car))))

(defun tern-goto-next-ref ()
(interactive)
(tern-run-query #'tern-do-goto-next "refs" (point)))

(defun tern-goto-prev-ref ()
(interactive)
(tern-run-query #'tern-do-goto-prev "refs" (point)))

;; Jump-to-definition

(defvar tern-find-definition-stack ())
Expand Down Expand Up @@ -576,6 +613,8 @@ list of strings, giving the binary name and arguments.")
(define-key tern-mode-keymap [(control ?c) (control ?r)] 'tern-rename-variable)
(define-key tern-mode-keymap [(control ?c) (control ?c)] 'tern-get-type)
(define-key tern-mode-keymap [(control ?c) (control ?d)] 'tern-get-docs)
(define-key tern-mode-keymap [(meta ?n)] 'tern-goto-next-ref)
(define-key tern-mode-keymap [(meta ?p)] 'tern-goto-prev-ref)

;;;###autoload
(define-minor-mode tern-mode
Expand Down