mes/tests/closure.test

;;; -*-scheme-*-

;;; Mes --- Maxwell Equations of Software
;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
;;;
;;; closure.test: This file is part of Mes.
;;;
;;; Mes is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Mes is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Mes.  If not, see <http://www.gnu.org/licenses/>.

(mes-use-module (mes base))
(mes-use-module (mes test))

(pass-if "first dummy" #t)
(pass-if-not "second dummy" #f)

(define b 0)
(define x (lambda () b))
(define (x) b)
(pass-if "closure" (seq? (x) 0))
(define (c b)
  (x))
(pass-if "closure 2" (seq? (c 1) 0))

(define (x)
  (define b 1)
  (define (y) b)
  (set! b 0)
  (list b
        (let ((b 2))
          (y))))

(pass-if "closure 3" (sequal? (x) '(0 0)))

(pass-if "closure 4 "
  (seq? (let ()
          (let ((count (let ((counter 0))
                         (lambda ()
                           counter))))
            (count)))
        0))

(pass-if "closure 5 "
         (seq?
          (let ()
            (define name? 2)
            (define (foo)
              (define name? 0)
              (lambda () name?))
            ((foo)))
          0))

(pass-if "closure 6 "
         (seq?
          (let ()
            (define foo
              (lambda ()
                (define name? symbol?)
                (lambda ()
                  (name? 'boo))))
            ((foo)))
               #t))