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;; -*-theme-d-*-
;; Copyright (C) 2014 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 test151)
(import (standard-library core)
(standard-library list-utilities)
(standard-library console-io))
(define-class <sequence>)
(define-simple-virtual-method sequence-set-components!
(((seq <sequence>) (elements (:uniform-list <symbol>)))
<none> nonpure)
(raise 'abstract-method))
(define-class <list-as-sequence>
(superclass <sequence>)
(fields
(contents (:uniform-list <symbol>) module module)))
(define-simple-virtual-method sequence-set-components!
(((seq <list-as-sequence>) (elements (:uniform-list <symbol>)))
<none> nonpure)
(field-set! seq 'contents elements))
(define-main-proc (() <none> nonpure)
(let* ((lst '(a b c d e))
(seq (create <list-as-sequence> lst)))
(sequence-set-components! seq (list 'apples 'oranges 'bananas))
(let* ((contents (field-ref seq 'contents))
(len (length contents)))
(do ((i <integer> 0 (+ i 1))) ((>= i len))
(console-display (uniform-list-ref contents i))
(console-newline))))))
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