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michalmarczyk/superlazyseq.clj

Created May 1, 2010 10:15
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superlazyseq.clj
(deftype SuperLazySeq [f r]
clojure.lang.ISeq
(first [self] (force f))
(next [self] r)
clojure.lang.Seqable
(seq [self] self))
(defmacro sl-cons [x sls]
`(SuperLazySeq. (delay ~x) ~sls))
(defmacro sl-list [& [x & ys :as xs]]
(when xs
`(sl-cons ~x (sl-list ~@ys))))
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