;; -*-theme-d-*-

;; Copyright (C) 2017 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 test510)

  (import (standard-library core-forms))

  (define _console-display
    (unchecked-prim-proc
     theme-prim-console-display (<object>) <none> nonpure))

  (define console-display-string
    (lambda (((str <string>)) <none> nonpure)
      (_console-display str)))

  (define console-newline
    (prim-proc theme-console-newline () <none> nonpure))

  (define integer->string
    (prim-proc number->string (<integer>) <string> pure))

  (define-param-logical-type :nonempty-uniform-list (%type)
    (:pair %type (:uniform-list %type)))

  (define-param-proc-alt append (%types)
    (unchecked-prim-proc append
			 ((splice (type-loop %type %types
					     (:uniform-list %type))))
			 (:uniform-list (:union (splice %types)))
			 pure))

  (define-param-proc-alt car (%type1 %type2)
    (unchecked-prim-proc car ((:pair %type1 %type2)) %type1
			 (pure always-returns)))

  (define-param-proc-alt cdr (%type1 %type2)
    (unchecked-prim-proc cdr ((:pair %type1 %type2)) %type2
			 (pure always-returns)))

  (define-param-proc-alt list (%arglist)
    (unchecked-prim-proc list ((splice %arglist)) %arglist pure))

  (define-param-class :stack (%type)
    <object> #t #f #f public ()
    ((l-contents (:uniform-list %type) public module null)))

  (define-param-proc push (%type)
		     (((stack (:stack %type))
		       (x-item %type))
		      <none>
		      nonpure)
    (field-set! stack 'l-contents
		(append (list x-item)
			(field-ref stack 'l-contents))))

  (define-param-proc pop (%type)
  		     (((stack (:stack %type)))
  		      %type
  		      nonpure)
    (let ((l1 (cast (:nonempty-uniform-list %type)
  		    (field-ref stack 'l-contents))))
      (field-set! stack 'l-contents (cdr l1))
      (car l1)))

  (define-simple-proc main (() <none> nonpure)
    (let ((stack (make (:stack <integer>))))
      (push stack 1)
      (push stack 2)
      (push stack 3)
      (console-display-string (integer->string (pop stack)))
      (console-newline)
      (console-display-string (integer->string (pop stack)))
      (console-newline)
      (console-display-string (integer->string (pop stack)))
      (console-newline))))
