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memoized anonymous functions in clojure
; inspired from http://stackoverflow.com/questions/3906831/how-do-i-generate-memoized-recursive-functions-in-clojure
(defmacro memoize-fn
"Produces a memoized anonymous function that can recursively call itself."
[fn-name & fn-args]
`(with-local-vars
[~fn-name (memoize
(fn ~@fn-args))]
(.bindRoot ~fn-name @~fn-name)
@~fn-name))
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