cljs.test/file-and-line

(defn file-and-line [exception depth]
  ;; TODO: flesh out
  (if-let [stack-element (and (string? (.-stack exception))
                              (some-> (.-stack exception)
                                      string/split-lines
                                      (get depth)
                                      string/trim))]
    (let [fname (js-filename stack-element)
          [line column] (js-line-and-column stack-element)
          [fname line column] (mapped-line-and-column fname line column)]
      {:file fname :line line :column column})
    {:file (.-fileName exception)
     :line (.-lineNumber exception)}))