Hi,
I think destructure should not produce nthnext, because it realize an
element of sequence more than needed.
For example:
(defn inc-seq [i]
(iterate #(let [x (inc %)] (println "realize:" x) x) i))
;=> #'user/inc-seq
(take 1 (inc-seq 0))
;=> (0)
(take 1 (let [[x & xs] (inc-seq 0)] (cons x xs)))
; realize: 1
;=> (0)
(macroexpand '(let [[x & xs] (inc-seq 0)] (cons x xs)))
;=> (let* [vec__2630 (inc-seq 0)
x (clojure.core/nth vec__2630 0 nil)
xs (clojure.core/nthnext vec__2630 1)]
(cons x xs))
Although nthrest isn't in clojure, why not to use nthrest instead of
nthnext in destructure?
What do you think?
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