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Improve robustness of eldoc-box-help-at-point

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* eldoc-box.el:
(eldoc-box-help-at-point): Guard against unbound variable error.
This commit is contained in:
Yuan Fu 2023-02-27 18:29:05 -08:00
parent eea7dd8371
commit b4662208cb
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1 changed files with 9 additions and 7 deletions
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eldoc-box.el
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@ -206,16 +206,18 @@ If (point) != last point, cleanup frame.")
(eldoc-box-quit-frame) (eldoc-box-quit-frame)
(kill-local-variable 'eldoc-display-functions))) (kill-local-variable 'eldoc-display-functions)))
;;;###autoload
(defun eldoc-box-help-at-point () (defun eldoc-box-help-at-point ()
"Display documentation of the symbol at point." "Display documentation of the symbol at point."
(interactive) (interactive)
(when (boundp 'eldoc--doc-buffer)
(let ((eldoc-box-position-function (let ((eldoc-box-position-function
#'eldoc-box--default-at-point-position-function)) #'eldoc-box--default-at-point-position-function))
(eldoc-box--display (eldoc-box--display
(with-current-buffer eldoc--doc-buffer (with-current-buffer eldoc--doc-buffer
(buffer-string)))) (buffer-string))))
(setq eldoc-box--help-at-point-last-point (point)) (setq eldoc-box--help-at-point-last-point (point))
(run-with-timer 0.1 nil #'eldoc-box--help-at-point-cleanup)) (run-with-timer 0.1 nil #'eldoc-box--help-at-point-cleanup)))
;;;; Backstage ;;;; Backstage
;;;;; Variable ;;;;; Variable