mes/tests/optargs.test

#! /bin/sh
# -*-scheme-*-
exec ${MES-bin/mes} --no-auto-compile -L ${0%/*} -L module -C module -e '(tests optargs)' -s "$0" "$@"
!#

;;; -*-scheme-*-

;;; GNU Mes --- Maxwell Equations of Software
;;; Copyright © 2016,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
;;;
;;; This file is part of GNU Mes.
;;;
;;; GNU 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.
;;;
;;; GNU 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 GNU Mes.  If not, see <http://www.gnu.org/licenses/>.

(define-module (tests optargs)
  #:use-module (mes optargs)
  #:use-module (mes mes-0)
  #:use-module (mes test))

(cond-expand
 (mes
  (mes-use-module (mes optargs))
  (mes-use-module (mes test)))
 (else))

(pass-if-equal "cond =>" 10
  (cond
   (5 => (lambda (p) (* p 2)))))
(pass-if-equal "cond => 2" 10
  (cond
   (#f (display "hallo") (newline))
   (5 => (lambda (p) (* p 2)))
   (#t (display "wereld" (newline)))))
(pass-if-equal "cond => last" 10
  (cond
   (#f (display "hallo") (newline))
   (5 => (lambda (p) (* p 2)))))

(pass-if "keyword?" (keyword? #:foo))
(pass-if "keywords" (eq? #:foo #:foo))
(pass-if-equal "keyword->symbol" 'foo (keyword->symbol #:foo))
(pass-if-equal "symbol->keyword" #:foo (symbol->keyword 'foo))
(pass-if-not "keywords" (eq? #:foo ':foo))

(pass-if "optargs #:optional" ((lambda* (#:optional (x #f)) x) #t))
(pass-if-equal "optargs #:optional default" #f ((lambda* (#:optional (x #f)) x)))
(pass-if "optargs key" ((lambda* (#:key (foo #f)) foo) #:foo #t))
(pass-if-equal "optargs key default" #f ((lambda* (#:key (foo #f)) foo)))

(define <info> '<info>)
(define <functions> '<functions>)
(define <globals> '<globals>)
(define <locals> '<locals>)
(define <text> '<text>)

(define* (make o #:key (functions '()) (globals '()) (locals '()) (text '()))
  (list <info>
        (cons <functions> functions)
        (cons <globals> globals)
        (cons <locals> locals)
        (cons <text> text)))

(define (.functions o)
  (assq-ref (cdr o) <functions>))

(define (.globals o)
  (assq-ref (cdr o) <globals>))

(define (.locals o)
  (assq-ref (cdr o) <locals>))

(define (.text o)
  (assq-ref (cdr o) <text>))

(define (info? o)
  (and (pair? o) (eq? (car o) <info>)))

(define (clone o . rest)
  (cond ((info? o)
         (let ((functions (.functions o))
               (globals (.globals o))
               (locals (.locals o))
               (text (.text o)))
           (let-keywords rest
                         #f
                         ((functions functions)
                          (globals globals)
                          (locals locals)
                          (text text))
                         (make <info> #:functions functions #:globals globals #:locals locals #:text text))))))

(pass-if-equal "clone <info>"
    (make <info> #:functions '(0))
  (clone (make <info>) #:functions '(0)))

(result 'report)