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[completion] Cache last result of cider-complete #3655

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merged 1 commit into from
May 10, 2024
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[completion] Cache last result of cider-complete #3655

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48 changes: 28 additions & 20 deletions cider-completion.el
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Original file line number Diff line number Diff line change
Expand Up @@ -184,26 +184,34 @@ performed by `cider-annotate-completion-function'."
(when-let* ((bounds (bounds-of-thing-at-point 'symbol)))
(when (and (cider-connected-p)
(not (or (cider-in-string-p) (cider-in-comment-p))))
(list (car bounds) (cdr bounds)
(lambda (prefix pred action)
;; When the 'action is 'metadata, this lambda returns metadata about this
;; capf, when action is (boundaries . suffix), it returns nil. With every
;; other value of 'action (t, nil, or lambda), 'action is forwarded to
;; (complete-with-action), together with (cider-complete), prefix and pred.
;; And that function performs the completion based on those arguments.
;;
;; This api is better described in the section
;; '21.6.7 Programmed Completion' of the elisp manual.
(cond ((eq action 'metadata) `(metadata (category . cider))) ;; defines a completion category named 'cider, used later in our `completion-category-overrides` logic.
((eq (car-safe action) 'boundaries) nil)
(t (with-current-buffer (current-buffer)
(complete-with-action action
(cider-complete prefix) prefix pred)))))
:annotation-function #'cider-annotate-symbol
:company-kind #'cider-company-symbol-kind
:company-doc-buffer #'cider-create-compact-doc-buffer
:company-location #'cider-company-location
:company-docsig #'cider-company-docsig))))
(let* (last-prefix
last-result
(complete
(lambda (prefix)
(unless (string-equal last-prefix prefix)
(setq last-prefix prefix)
(setq last-result (cider-complete prefix)))
last-result)))
(list (car bounds) (cdr bounds)
(lambda (prefix pred action)
;; When the 'action is 'metadata, this lambda returns metadata about this
;; capf, when action is (boundaries . suffix), it returns nil. With every
;; other value of 'action (t, nil, or lambda), 'action is forwarded to
;; (complete-with-action), together with (cider-complete), prefix and pred.
;; And that function performs the completion based on those arguments.
;;
;; This api is better described in the section
;; '21.6.7 Programmed Completion' of the elisp manual.
(cond ((eq action 'metadata) `(metadata (category . cider))) ;; defines a completion category named 'cider, used later in our `completion-category-overrides` logic.
((eq (car-safe action) 'boundaries) nil)
(t (with-current-buffer (current-buffer)
(complete-with-action action
(funcall complete prefix) prefix pred)))))
:annotation-function #'cider-annotate-symbol
:company-kind #'cider-company-symbol-kind
:company-doc-buffer #'cider-create-compact-doc-buffer
:company-location #'cider-company-location
:company-docsig #'cider-company-docsig)))))

(defun cider-completion-flush-caches ()
"Force Compliment to refill its caches.
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