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timvisher/test.clj

Created July 10, 2012 18:39
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test.clj
(defn class* [a & _]
(class a))
(defmulti write-hotfix class*)
(defmethod write-hotfix clojure.lang.Ref [memory-store hotfix]
(dosync
(ref-set memory-store (assoc @memory-store (:id hotfix) hotfix))))
(write-hotfix (ref {}) {:id 1})
;;; =>
;; No method in multimethod 'write-hotfix' for dispatch value: clojure.lang.Ref@b2018c
;; [Thrown class java.lang.IllegalArgumentException]
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