d0f7db73f9
* mes.c (type_t): Add CONTINUATION.
(scm_t): Add continuation;
(scm_call_with_current_continuation): New symbol.
(scm_symbol_call_with_current_continuation): New special.
(g_continuations): New global
(CONTINUATION): New field accessor.
(MAKE_CONTINUATION): New make_cell helper.
(car_): Update.
(eval_apply): Implement call/cc.
* module/mes/display.mes (display): Handle continuations.
* module/mes/type-0.mes (<cell:continuation>): New type.
(cell-type-alist): Add it.
(continuation?): New function.
* tests/base.test ("call/cc"): New test.
102 lines
3.4 KiB
Scheme
Executable file
102 lines
3.4 KiB
Scheme
Executable file
#! /bin/sh
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# -*-scheme-*-
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echo ' ()' | cat $(dirname $0)/../module/mes/base-0.mes $0 /dev/stdin | $(dirname $0)/../scripts/mes $MES_FLAGS "$@"
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#paredit:||
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exit $?
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!#
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;;; -*-scheme-*-
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;;; Mes --- Maxwell Equations of Software
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;;; Copyright © 2016 Jan Nieuwenhuizen <janneke@gnu.org>
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;;;
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;;; This file is part of Mes.
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;;;
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;;; Mes is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; Mes is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with Mes. If not, see <http://www.gnu.org/licenses/>.
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(mes-use-module (mes test))
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(pass-if "first dummy" #t)
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(pass-if-not "second dummy" #f)
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(pass-if "begin" (seq? (begin 'a 'b (+ 1 2)) 3))
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(pass-if "lambda" (symbol? 'lambda))
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(define *top-define-a* '*top-define-a*)
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(pass-if "top define " (seq? *top-define-a* '*top-define-a*))
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(begin (define *top-begin-define-a* '*top-begin-define-a*))
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(pass-if "top begin define " (seq? *top-begin-define-a* '*top-begin-define-a*))
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(pass-if "if" (seq? (if #t 'true) 'true))
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(pass-if "if 2" (seq? (if #f #f) *unspecified*))
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(pass-if "if 3" (seq? (if (seq? 0 '0) 'true 'false) 'true))
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(pass-if "if 4" (seq? (if (= 1 2) 'true 'false) 'false))
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(pass-if-equal "append" '(0 1) (append '(0) '(1)))
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(pass-if-equal "append 1" '0 (append '() 0))
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(pass-if-equal "append 2" '(0) (append '(0) '()))
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(pass-if-equal "append 3" 0 (append 0))
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(pass-if-equal "append 4" 'cons (append (cdr '(c)) (car '(cons))))
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(pass-if-equal "append 5" '(0 1 2) (append '(0) '(1) '(2)))
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;;(pass-if ">=" (seq? (>= 3 2 1) #t))
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(if (defined? 'cond)
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(begin
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(pass-if "cond" (seq? (cond (#f #f) (#t #t)) #t))
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(pass-if "cond" (seq? (cond (#t)) #t))
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(pass-if "cond 2" (seq? (cond (#f)) *unspecified*))
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(pass-if "cond 3" (seq? (cond (#t 0)) 0))
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(pass-if "cond 3" (seq? (cond (#f 1) (#t 0)) 0))
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(pass-if-equal "cond => "
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0 (let ((lst '(0 1 2)))
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(define (next)
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(let ((r (car lst)))
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(set! lst (cdr lst))
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r))
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(cond ((next) => identity))))))
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(pass-if "and" (seq? (and 1) 1))
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(pass-if "and 2" (seq? (and 1 (= 0 1) #f) #f))
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(pass-if "or" (seq? (or) #f))
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(pass-if "or 2" (seq? (or 1) 1))
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(pass-if "or 3" (seq? (or #f (= 0 1) 3) 3))
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(pass-if "or 4" (seq? (or (= 0 0) (= 0 1)) #t))
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(pass-if "or 5" (seq? (or (= 0 1) (= 0 0)) #t))
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(pass-if "let" (seq? (let () 0) 0))
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(pass-if "let 2" (seq? (let ((x 0)) x) 0))
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(pass-if "let 3" (seq? (let ((p 5) (q 6)) (+ p q)) 11))
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(pass-if "apply" (sequal? (apply list '(1)) '(1)))
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(pass-if "apply 2" (sequal? (apply list 1 '(2)) '(1 2)))
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(pass-if "apply 3" (sequal? (apply list 1 2 '(3)) '(1 2 3)))
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(begin
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(define local-answer 41))
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(pass-if-equal "begin 2" 41 (begin local-answer))
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(if (not guile?)
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(pass-if-equal "load" 42 (begin (load "tests/data/load.scm") the-answer)))
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(pass-if-equal "call/cc"
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0
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(let ((cont #f)
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(seen? #f))
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(+ 1 (call/cc (lambda (c) (set! cont c) 1)))
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(if seen? 0
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(begin (set! seen? #t)
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(cont 2)))))
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(result 'report)
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