mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-05-01 12:20:26 +02:00
12136c7148
* module/ice-9/boot-9.scm (@bind): Define a VM-compatible syntax definition for this old evaluator primitive. * test-suite/tests/dynamic-scope.test: Change the expected error messages.
88 lines
2.6 KiB
Scheme
88 lines
2.6 KiB
Scheme
;;;; -*- scheme -*-
|
|
;;;; dynamic-scop.test --- test suite for dynamic scoping constructs
|
|
;;;;
|
|
;;;; Copyright (C) 2001, 2006, 2009 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 test-dynamic-scope)
|
|
:use-module (test-suite lib))
|
|
|
|
|
|
(define exception:syntax-error
|
|
(cons 'syntax-error "failed to match"))
|
|
(define exception:duplicate-binding
|
|
(cons 'syntax-error "duplicate"))
|
|
|
|
(define global-a 0)
|
|
(define (fetch-global-a) global-a)
|
|
|
|
(with-test-prefix "dynamic scope"
|
|
|
|
(pass-if "@bind binds"
|
|
(= (@bind ((global-a 1)) (fetch-global-a)) 1))
|
|
|
|
(pass-if "@bind unbinds"
|
|
(begin
|
|
(set! global-a 0)
|
|
(@bind ((global-a 1)) (fetch-global-a))
|
|
(= global-a 0)))
|
|
|
|
(pass-if-exception "duplicate @binds"
|
|
exception:duplicate-binding
|
|
(eval '(@bind ((a 1) (a 2)) (+ a a))
|
|
(interaction-environment)))
|
|
|
|
(pass-if-exception "@bind missing expression"
|
|
exception:syntax-error
|
|
(eval '(@bind ((global-a 1)))
|
|
(interaction-environment)))
|
|
|
|
(pass-if-exception "@bind bad bindings"
|
|
exception:syntax-error
|
|
(eval '(@bind (a) #f)
|
|
(interaction-environment)))
|
|
|
|
(pass-if-exception "@bind bad bindings"
|
|
exception:syntax-error
|
|
(eval '(@bind ((a)) #f)
|
|
(interaction-environment)))
|
|
|
|
(pass-if "@bind and dynamic-wind"
|
|
(letrec ((co-routine #f)
|
|
(spawn (lambda (proc)
|
|
(set! co-routine proc)))
|
|
(yield (lambda (val)
|
|
(call-with-current-continuation
|
|
(lambda (k)
|
|
(let ((next co-routine))
|
|
(set! co-routine k)
|
|
(next val)))))))
|
|
|
|
(spawn (lambda (val)
|
|
(@bind ((global-a 'inside))
|
|
(yield global-a)
|
|
(yield global-a))))
|
|
|
|
(set! global-a 'outside)
|
|
(let ((inside-a (yield #f)))
|
|
(let ((outside-a global-a))
|
|
(let ((inside-a2 (yield #f)))
|
|
(and (eq? inside-a 'inside)
|
|
(eq? outside-a 'outside)
|
|
(eq? inside-a2 'inside))))))))
|
|
|
|
|
|
|