424 lines
12 KiB
Scheme
424 lines
12 KiB
Scheme
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(load-relative "loadtest.ss")
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(require (lib "unit.ss"))
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(SECTION 'continuation-marks)
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(define (extract-current-continuation-marks key)
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(continuation-mark-set->list (current-continuation-marks) key))
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(test null extract-current-continuation-marks 'key)
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(syntax-test #'with-continuation-mark)
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(syntax-test #'(with-continuation-mark))
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(syntax-test #'(with-continuation-mark 1))
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(syntax-test #'(with-continuation-mark 1))
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(syntax-test #'(with-continuation-mark 1 2))
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(syntax-test #'(with-continuation-mark 1 2 3 4))
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(syntax-test #'(with-continuation-mark 1 2 3 . 4))
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(test '(10) 'wcm (with-continuation-mark 'key 10
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(extract-current-continuation-marks 'key)))
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(test '(#(10 #f)) 'wcm (with-continuation-mark 'key 10
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(continuation-mark-set->list* (current-continuation-marks) '(key no-key))))
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(test '(#(#f 10)) 'wcm (with-continuation-mark 'key 10
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(continuation-mark-set->list* (current-continuation-marks) '(no-key key))))
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(test '(#(nope 10)) 'wcm (with-continuation-mark 'key 10
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(continuation-mark-set->list* (current-continuation-marks) '(no-key key) 'nope)))
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(test '(#(10 12)) 'wcm (with-continuation-mark 'key1 10
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(with-continuation-mark 'key2 12
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(continuation-mark-set->list* (current-continuation-marks) '(key1 key2)))))
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(test '(#(#f 12) #(10 #f)) 'wcm
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(with-continuation-mark 'key1 10
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(let ([x (with-continuation-mark 'key2 12
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(continuation-mark-set->list* (current-continuation-marks) '(key1 key2)))])
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(if (void? x)
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x
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x))))
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(test '(11) 'wcm (with-continuation-mark 'key 10
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(with-continuation-mark 'key 11
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(extract-current-continuation-marks 'key))))
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(test '(9) 'wcm (with-continuation-mark 'key 10
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(with-continuation-mark 'key2 9
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(with-continuation-mark 'key 11
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(extract-current-continuation-marks 'key2)))))
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(test '() 'wcm (with-continuation-mark 'key 10
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(with-continuation-mark 'key2 9
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(with-continuation-mark 'key 11
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(extract-current-continuation-marks 'key3)))))
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(test '() 'wcm (let ([x (with-continuation-mark 'key 10 (list 100))])
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(extract-current-continuation-marks 'key)))
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(test '(11) 'wcm (with-continuation-mark 'key 11
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(let ([x (with-continuation-mark 'key 10 (extract-current-continuation-marks 'key))])
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(extract-current-continuation-marks 'key))))
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(test '((11) (10 11) (11)) 'wcm (with-continuation-mark 'key 11
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(list (extract-current-continuation-marks 'key)
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(with-continuation-mark 'key 10 (extract-current-continuation-marks 'key))
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(extract-current-continuation-marks 'key))))
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(test '(11) 'wcm-invoke/tail (with-continuation-mark 'x 10
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(invoke-unit
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(unit
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(import)
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(export)
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(with-continuation-mark 'x 11
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(continuation-mark-set->list
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(current-continuation-marks)
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'x))))))
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(test '(11 10) 'wcm-invoke/nontail (with-continuation-mark 'x 10
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(invoke-unit
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(unit
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(import)
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(export)
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(define l (with-continuation-mark 'x 11
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(continuation-mark-set->list
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(current-continuation-marks)
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'x)))
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l))))
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(test '(11 10) 'wcm-begin0 (with-continuation-mark 'x 10
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(begin0
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(with-continuation-mark 'x 11
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(extract-current-continuation-marks 'x))
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(+ 2 3))))
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(test '(11 10) 'wcm-begin0/const (with-continuation-mark 'x 10
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(begin0
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(with-continuation-mark 'x 11
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(extract-current-continuation-marks 'x))
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'constant)))
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;; full continuation, same thread
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(test '(11 10) 'wcm-begin0
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(let ([k (with-continuation-mark 'x 10
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(begin0
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(with-continuation-mark 'x 11
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(let/cc k k))
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(+ 2 3)))])
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(continuation-mark-set->list
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(continuation-marks k)
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'x)))
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;; full continuation, another thread
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(test '(11 10) 'wcm-begin0
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(let ([k (with-continuation-mark 'x 10
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(begin0
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(with-continuation-mark 'x 11
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(let/cc k k))
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(+ 2 3)))])
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(continuation-mark-set->list
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(let ([v #f])
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(thread-wait (thread (lambda ()
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(set! v (continuation-marks k)))))
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v)
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'x)))
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;; escape continuation, same thread
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(test '(11 10) 'wcm-begin0
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(let ([m (with-continuation-mark 'x 10
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(begin0
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(with-continuation-mark 'x 11
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(let/ec k
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(begin0
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(with-continuation-mark 'x 12
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(continuation-marks k))
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(+ 17 7))))
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(+ 2 3)))])
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(continuation-mark-set->list m 'x)))
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;; escape continuation, another thread => not allowed
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(test #f 'wcm-begin0
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(with-continuation-mark 'x 10
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(let/ec k
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(with-continuation-mark 'x 12
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(let ([v #f])
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(thread-wait
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(thread (lambda ()
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(set! v (continuation-marks k)))))
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v)))))
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;; escape continuation, dead
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(err/rt-test (continuation-marks (let/ec k k)) exn:application:mismatch?)
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(define (get-marks)
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(extract-current-continuation-marks 'key))
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(define (tail-apply f)
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(with-continuation-mark 'key 'tail
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(f)))
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(define (non-tail-apply f)
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(with-continuation-mark 'key 'non-tail
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(car (cons (f) null))))
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(test '(tail) tail-apply get-marks)
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(test '(non-tail) non-tail-apply get-marks)
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(test '(tail non-tail) non-tail-apply (lambda () (tail-apply get-marks)))
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(test '(non-tail) tail-apply (lambda () (non-tail-apply get-marks)))
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(define (mark-x f)
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(lambda ()
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(with-continuation-mark 'key 'x (f))))
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(test '(x) tail-apply (mark-x get-marks))
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(test '(x non-tail) non-tail-apply (mark-x get-marks))
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(test '(x) tail-apply (lambda () (tail-apply (mark-x get-marks))))
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(test '(x non-tail non-tail) non-tail-apply (lambda () (non-tail-apply (mark-x get-marks))))
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(test '(x non-tail) tail-apply (lambda () (non-tail-apply (mark-x get-marks))))
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(test '(x non-tail) non-tail-apply (lambda () (tail-apply (mark-x get-marks))))
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;; Make sure restoring continuations restores the marks:
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(let ([l null])
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(let ([did-once? #f]
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[did-twice? #f]
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[try-again #f]
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[get-marks #f])
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(with-continuation-mark
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'key (let/cc k (set! try-again k) 1)
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(begin
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(unless did-once?
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(set! get-marks (let/cc k k)))
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(set! l (cons (extract-current-continuation-marks 'key) l))))
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(if did-once?
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(unless did-twice?
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(set! did-twice? #t)
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(get-marks #f))
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(begin
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(set! did-once? #t)
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(try-again 2))))
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(test '((1) (2) (1)) 'call/cc-restore-marks l))
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;; Make sure restoring continuations restores the right marks
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;; for dynamic-wind thunks
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(let* ([x (make-parameter 0)]
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[l null]
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[add (lambda (a b)
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(set! l (append l (list (cons a b)))))]
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[cp #f])
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(let ([k (parameterize ([x 5])
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(dynamic-wind
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(lambda () (add 1 (x)))
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(lambda () (parameterize ([x 6])
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(let ([k+e (let/cc k (cons k void))])
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(set! cp (current-parameterization))
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(add 2 (x))
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((cdr k+e))
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(car k+e))))
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(lambda () (add 3 (x)))))])
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(parameterize ([x 7])
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(let/cc esc
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(k (cons void esc)))))
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(test l values '((1 . 5) (2 . 6) (3 . 5) (1 . 5) (2 . 6) (3 . 5)))
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(test 6 call-with-parameterization cp (lambda () (x)))
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(test 0 call-with-parameterization (current-parameterization) (lambda () (x))))
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(let* ([l null]
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[add (lambda (a b)
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(set! l (append l (list (cons a b)))))]
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[x (lambda ()
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(car (continuation-mark-set->list (current-continuation-marks)
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'x)))])
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(let ([k (with-continuation-mark 'x 5
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(dynamic-wind
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(lambda () (add 1 (x)))
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(lambda () (with-continuation-mark 'x 6
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(let ([k+e (let/cc k (cons k void))])
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(add 2 (x))
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((cdr k+e))
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(car k+e))))
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(lambda () (add 3 (x)))))])
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(with-continuation-mark 'x 7
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(let/cc esc
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(k (cons void esc)))))
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(test l values '((1 . 5) (2 . 6) (3 . 5) (1 . 5) (2 . 6) (3 . 5))))
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(let ([k0 #f]
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[k1 #f]
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[k2 #f]
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[k3 #f]
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[k4 #f]
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[k5 #f]
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[esc void])
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(define (go)
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(with-continuation-mark 'a 7
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(dynamic-wind
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(lambda ()
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((let/cc k (set! k0 k) void))
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(test '(7) extract-current-continuation-marks 'a))
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(lambda ()
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(with-continuation-mark 'a 8
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(begin
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(test '(8 7) extract-current-continuation-marks 'a)
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((let/cc k (set! k1 k) void))
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(test '(8 7) extract-current-continuation-marks 'a)
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(dynamic-wind
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(lambda ()
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(test '(8 7) extract-current-continuation-marks 'a)
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(with-continuation-mark 'a 9
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(begin
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((let/cc k (set! k2 k) void))
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(test '(9 8 7) extract-current-continuation-marks 'a))))
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(lambda ()
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((let/cc k (set! k3 k) void))
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(test '(8 7) extract-current-continuation-marks 'a))
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(lambda ()
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(with-continuation-mark 'a 10
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(begin
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((let/cc k (set! k4 k) void))
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(test '(10 8 7) extract-current-continuation-marks 'a)))
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(test '(8 7) extract-current-continuation-marks 'a)))
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(test '(8 7) extract-current-continuation-marks 'a))))
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(lambda ()
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((let/cc k (set! k5 k) void))
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(test '(7) extract-current-continuation-marks 'a))))
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(esc))
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(go)
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(let ([k0 k0]
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[k1 k1]
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[k2 k2]
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[k3 k3]
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[k4 k4]
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[k5 k5])
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(let/cc k (set! esc k) (k1 void))
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(let/cc k (set! esc k) (k1 k))
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(let/cc k (set! esc k) (k2 void))
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(let/cc k (set! esc k) (k2 k))
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(let/cc k (set! esc k) (k3 void))
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(let/cc k (set! esc k) (k3 k))
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(let/cc k (set! esc k) (k4 void))
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(let/cc k (set! esc k) (k4 k))
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(let/cc k (set! esc k) (k5 void))
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(let/cc k (set! esc k) (k5 k))))
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(test #t parameterization? (current-parameterization))
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(test #f parameterization? (make-parameter 5))
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(arity-test current-parameterization 0 0)
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(arity-test call-with-parameterization 2 2)
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(err/rt-test (call-with-parameterization 10 (lambda () 12)))
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(err/rt-test (call-with-parameterization (current-parameterization) (lambda (x) 12)))
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;; Create a deep stack with a deep mark stack
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(define (p-equal? a b)
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(let loop ([a a][b b])
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(cond
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[(eq? a b) #t]
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[(equal? (car a) (car b))
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(loop (cdr a) (cdr b))]
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[else
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(printf "a: ~s~n" a)
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(printf "b: ~s~n" b)
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#f])))
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(test #t
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'deep-stacks
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(p-equal?
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(let loop ([n 1000][l null])
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(if (zero? n)
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l
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(loop (sub1 n) (cons n l))))
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(let loop ([n 1000])
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(if (zero? n)
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(extract-current-continuation-marks 'x)
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(let ([x (with-continuation-mark 'x n (loop (sub1 n)))])
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x)))))
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;; Create a deep mark stack 10 times
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(let loop ([n 10])
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(unless (zero? n)
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(let* ([max 1000]
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[r (add1 (random max))])
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(test (list 0 r)
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`(loop ,n)
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(with-continuation-mark 'base 0
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(let loop ([n max])
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(if (zero? n)
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(append
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(extract-current-continuation-marks 'base)
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(extract-current-continuation-marks r))
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(with-continuation-mark n n
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(loop (sub1 n))))))))
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(loop (sub1 n))))
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;; Make sure marks are separate in separate threads
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(let ([s1 (make-semaphore 0)]
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[s2 (make-semaphore 0)]
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[result null])
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(thread (lambda ()
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(with-continuation-mark 'key 'b.1
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(begin
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(semaphore-wait s1)
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(with-continuation-mark 'key 'b.2
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(begin
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(semaphore-post s2)
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(semaphore-wait s1)
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(with-continuation-mark 'key 'b.4
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(begin
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(set! result (extract-current-continuation-marks 'key))
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(semaphore-post s2)))
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'ok))
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'ok))))
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(thread-wait
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(thread (lambda ()
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(with-continuation-mark 'key 'a.1
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(begin
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(semaphore-post s1)
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(with-continuation-mark 'key 'a.2
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(begin
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(semaphore-wait s2)
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(with-continuation-mark 'key 'a.3
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(begin
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(semaphore-post s1)
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(with-continuation-mark 'key 'a.4
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(begin
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(semaphore-wait s2)
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(set! result (append (extract-current-continuation-marks 'key) result))))
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'ok))
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'ok))
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'ok)))))
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(test '(a.4 a.3 a.2 a.1 b.4 b.2 b.1) 'thread-marks result))
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(arity-test current-continuation-marks 0 0)
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(arity-test continuation-mark-set->list 2 2)
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(arity-test continuation-mark-set? 1 1)
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(err/rt-test (continuation-mark-set->list 5 1))
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(test #f continuation-mark-set? 5)
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(test #t continuation-mark-set? (current-continuation-marks))
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(let ([c #f]
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[l null])
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(thread-wait
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(thread (lambda ()
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(dynamic-wind
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(lambda () (collect-garbage))
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(lambda ()
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(let-values ([(a b) (let/cc k
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(set! c k)
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(values 1 2))])
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(set! l (append l (list a b)))))
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void))))
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(thread-wait
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(thread (lambda ()
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(c 4 5))))
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(test '(1 2 4 5) values l))
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(report-errs)
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