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jebberjeb/wrap-java.clj

Last active December 20, 2015 22:49
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Wrap a java method call for easy use w/ map, filter, etc using a macro. memfn obviates this mess.
Raw
wrap-java.clj
(defmacro ->j-fn [j-fn]
(let [args (gensym "args")]
`(fn [~args]
(eval (cons '~j-fn (if (coll? ~args) ~args (list ~args)))))))
;trivial
((->j-fn .length) "foo")
;useful, since you can't do (map .length ["foo" "bar"])
(map (->j-fn .length) ["foo" "bar"])
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