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fixed a bug in IO where port-next-location went into a busy loop before any io had happened

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svn: r1526
This commit is contained in:
Robby Findler 2005-12-05 15:45:26 +00:00
parent a178dc475f
commit 4f8054f125
3 changed files with 32 additions and 9 deletions
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10
collects/framework/private/text.ss
View File

@ -1655,9 +1655,7 @@ WARNING: printf is rebound in the body of the unit to always
[resp-chan (cdr pr)])
(set! positioners (cons pr positioners))
(loop))))
(if position
(apply choice-evt (map service-positioner positioners))
never-evt)
(apply choice-evt (map service-positioner positioners))
(handle-evt
read-chan
(λ (ent)
@ -1748,7 +1746,11 @@ WARNING: printf is rebound in the body of the unit to always
[resp-evt (cdr pr)])
(handle-evt
(choice-evt nack-evt
(channel-put-evt resp-evt position))
(channel-put-evt resp-evt (or position
;; a bogus position for when
;; nothing has happened yet.
(list 1 0 1))))
(let ([sent-position position])
(λ (_)
(set! positioners (remq pr positioners))

4
collects/framework/test.ss
View File

@ -905,7 +905,9 @@
(if (method-in-interface? 'on-event (object-interface window))
(send window on-event event)
(error mouse-tag "focused window does not have on-event"))]
[(send (car l) on-subwindow-event window event) #f]
[(and (is-a? (car l) window<%>)
(send (car l) on-subwindow-event window event))
#f]
[else (loop (cdr l))]))))
;;

27
collects/tests/drscheme/io.ss
View File

@ -29,8 +29,7 @@ add this test:
(clear-definitions drs-frame)
(type-in-definitions drs-frame expression)
(do-execute drs-frame)
(let* ([text (send drs-frame get-interactions-text)]
[got (get-string/style-desc text (send text paragraph-start-position 2))])
(let* ([got (get-annotated-output)])
(unless (andmap (λ (exp got)
(and (string=? (car exp) (car got))
(or (equal? (cadr exp) (cadr got))
@ -38,13 +37,33 @@ add this test:
((cadr exp) (cadr got))))))
expected
got)
(error 'io.ss "expected ~s, got ~s for ~s" expected got expression)))))
(fprintf (current-error-port)
"expected ~s, got ~s for ~s\n\n"
expected
got
expression)))))
(define (get-annotated-output)
(let ([chan (make-channel)])
(queue-callback
(λ ()
(let ([text (send drs-frame get-interactions-text)])
(channel-put chan
(get-string/style-desc text
(send text paragraph-start-position 2))))))
(channel-get chan)))
(define (output-style x) (equal? (list-ref x 9) '(150 0 150)))
(define (error-style x) (equal? (list-ref x 9) '(255 0 0)))
(define prompt '("\n> " default-color))
;; this test has to be first to test an uninitialized state of the port
;; NOTE: missing a name for the "value" style ... so this test appears to fail (altho it actually passes)
(check-output "(port-next-location (current-input-port))"
(list '("1\n0\n1\n" value-style)
prompt))
(check-output "(display 1)" (list (list "1" output-style) prompt))
(check-output "(display 1 (current-output-port))" (list (list "1" output-style) prompt))
@ -166,7 +185,7 @@ add this test:
(set-language-level! (list "PLT" (regexp "Textual")))
(define (run-test)
(output-err-port-checking) ;; must come first
;(long-io/execute-test)
;(output-err-port-checking)
(reading-test)
))