;; -*-theme-d-*-

;; Copyright (C) 2008-2013 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 test176)


  (import (standard-library core)
	  (standard-library string-utilities)
	  (standard-library console-io))


  (define-class <my-tree> <object> #t #f #f public ()
    ((node-value <integer> public public)
     (subtrees (:uniform-list <my-tree>) public public)))


  (declare get-prefix (:procedure (<integer>) <string> pure))


  (define get-prefix
    (lambda (((level <integer>)) <string> force-pure)
      (if (<= level 0)
	  ""
	  (string-append "  " (get-prefix (- level 1))))))


  (declare do-display-my-tree
	   (:procedure (<my-tree> <integer>) <none> nonpure))


  (define do-display-my-tree
    (lambda (((tree <my-tree>) (level <integer>)) <none> nonpure)
      (let ((prefix <string> (get-prefix level)))
	(console-display prefix)
	(console-display (field-ref tree 'node-value))
	(console-newline)
	(let-mutable ((cur-subtrees (:uniform-list <my-tree>) 
				    (field-ref tree 'subtrees)))
	  (until ((equal? cur-subtrees null))
	    (let ((cur-subtrees1
		   (cast (:nonempty-uniform-list <my-tree>)
			 cur-subtrees)))
	      (do-display-my-tree (car cur-subtrees1)
				  (+ level 1))
	      (set! cur-subtrees (cdr cur-subtrees1))))))))


  (define display-my-tree
    (lambda (((tree <my-tree>)) <none> nonpure)
      (do-display-my-tree tree 0)))


  (define main
    (lambda (() <integer> nonpure)
      (let ((my-tree
      	     (make <my-tree>
      	       1
      	       (list
      	     	(make <my-tree> 2 null)
      	     	(make <my-tree>
      	     	  3
      	     	  (list
      	     	   (make <my-tree> 4 null)
      	     	   (make <my-tree> 5 null)))))))
	(display-my-tree my-tree))
      0)))
