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MichaelDrogalis/gist:6140936

Created August 2, 2013 15:44
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gistfile1.clj
(ns mytask
(:require [dire.core :refer [with-precondition!]]))
(defn add-one [n]
(inc n))
(with-precondition! #'add-one
:not-two
(fn [n & args]
(not= n 2)))
(add-one 2) ; => Boom!
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