guile/test-suite/tests/srfi-71.test

;;;; srfi-71.test --- Extended 'let' syntax.         -*- mode: scheme; -*-
;;;;
;;;; Copyright (C) 2018 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library 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
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

(define-module (test-suite i18n)
  #:use-module (srfi srfi-71)
  #:use-module (test-suite lib))

(pass-if-equal "let"
  '(1 2 3)
  (let ((x y z (values 1 2 3)))
    (list x y z)))

(pass-if-equal "let*"
  6
  (let* ((x y (values 1 2))
         (z (+ x y)))
    (* z 2)))

(pass-if-equal "letrec"
    #t
  (letrec ((odd? even?
                 (values (lambda (n) (even? (- n 1)))
                         (lambda (n) (or (zero? n) (odd? (- n 1)))))))
    (and (odd? 77) (even? 42))))

(pass-if-exception "too few values"
    exception:wrong-num-args
  ;; With compiled code we would get:
  ;; '(vm-error . "Wrong number of values returned to continuations")
  (let ((x y 1))
    (+ x y)))