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;; -*-theme-d-*-
;; Copyright (C) 2016 Tommi Höynälänmaa
;; Distributed under GNU General Public License version 3,
;; see file doc/GPL-3.
;; Expected results: translation and running OK
(define-proper-program (tests test457)
(import (standard-library core)
(standard-library stream)
(standard-library promise)
(standard-library console-io))
(define-param-proc list->nonpure-stream (%type)
(((l (:uniform-list %type)))
(:nonpure-stream %type)
nonpure)
(match-type l
((<null>) null)
((l2 (:nonempty-uniform-list %type))
(cons (delay-nonpure (car l2))
(delay-nonpure (list->nonpure-stream (cdr l2)))))))
(define-main-proc (() <none> nonpure)
(let* ((l (:uniform-list <integer>) '(1 2 3 4 5))
(stream (list->nonpure-stream l))
(l2 (nonpure-stream->list stream)))
(console-display-line l)
(console-display-line l2))))
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