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ihercowitz/protocol-sample.clj

Created August 12, 2013 12:11
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A very simple polymorphic method in clojure
Raw
protocol-sample.clj
(defprotocol Hello (say [x]))
(extend-protocol Hello
String (say [x] (str "Hello String " x))
Long (say [x] (str "Hello Number " x)))
;usage
(say "World") ;expected: "Hello String World"
(say 42) ;expected: "Hello Number 42"
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