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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 test172)
(import (standard-library core)
(standard-library list-utilities)
(standard-library string-utilities)
(standard-library console-io)
(standard-library object-string-conversion))
(define-param-class :sequence
(parameters %element))
(define-param-virtual-method sequence-ref (%element)
(((seq (:sequence %element)) (index <integer>)) %element pure)
(raise 'abstract-method))
(define-param-virtual-method sequence-length (%element)
(((seq (:sequence %element))) <integer> pure)
(raise 'abstract-method))
(define-param-virtual-method sequence-map (%source %target)
(((proc (:procedure (%source) %target pure)) (seq (:sequence %source)))
(:sequence %target) pure)
(raise 'abstract-method))
(define-param-class :list-as-sequence
(parameters %element)
(superclass (:sequence %element))
(fields
(contents (:uniform-list %element) module hidden)))
(define-param-virtual-method sequence-ref (%element)
(((seq (:list-as-sequence %element)) (index <integer>)) %element pure)
(uniform-list-ref (field-ref seq 'contents) index))
(define-param-virtual-method sequence-length (%element)
(((seq (:list-as-sequence %element))) <integer> pure)
(length (field-ref seq 'contents)))
(define-param-virtual-method sequence-map (%source %target)
(((proc (:procedure (%source) %target pure))
(seq (:list-as-sequence %source)))
(:list-as-sequence %target) pure)
(create (:list-as-sequence %target)
(map proc (field-ref seq 'contents))))
(define-param-proc display-sequence (%element)
(((seq (:sequence %element))) <none> nonpure)
(let ((len (sequence-length seq)))
(do ((i <integer> 0 (+ i 1))) ((>= i len))
(console-display (sequence-ref seq i))
(console-newline))))
(define-simple-proc my-proc (((n <integer>)) <string> pure)
(string-append "*" (integer->string n) "*"))
(define-main-proc (() <none> nonpure)
(let* ((lst '(1 3 5 2 4))
(seq1 (create (:list-as-sequence <integer>) lst))
(seq2 (sequence-map my-proc seq1)))
(display-sequence seq2))))
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