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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 test475)
(import (standard-library core)
(standard-library stream)
(standard-library promise)
(standard-library console-io))
(define-param-proc my-list->stream (%type)
(((l (:uniform-list %type)))
(:stream %type)
pure)
(force-pure-expr (console-display-line "my-list->stream"))
(match-type l
((<null>) null)
((l2 (:nonempty-uniform-list %type))
(cons (delay (car l2)) (delay (my-list->stream (cdr l2)))))))
(define-main-proc (() <none> nonpure)
(let* ((l (:uniform-list <integer>) '(10 20 30 40 50))
(stm (my-list->stream l)))
(do ((stm-cur (:stream <integer>) stm (stream-next stm-cur))
(i <integer> 0 (+ i 1)))
((stream-empty? stm-cur))
(console-display i)
(console-display " ")
(console-display-line (stream-value stm-cur))))))
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