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adjust the module browser so that when expansion does IO and that IO uses specials,

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the specials are just ignored, instead of causing an error message
  closes PR 11854
This commit is contained in:
Robby Findler 2011-04-19 10:28:46 -05:00
parent 57b9bcfe38
commit 8f43c9ebdb
1 changed files with 27 additions and 1 deletions
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28
collects/drracket/private/module-browser.rkt
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@ -10,7 +10,8 @@
"drsig.rkt" "drsig.rkt"
racket/unit racket/unit
racket/async-channel racket/async-channel
setup/private/lib-roots) setup/private/lib-roots
racket/port)
(define-struct req (filename key)) (define-struct req (filename key))
;; type req = (make-req string[filename] (union symbol #f)) ;; type req = (make-req string[filename] (union symbol #f))
@ -22,6 +23,11 @@
(define adding-file (string-constant module-browser-adding-file)) (define adding-file (string-constant module-browser-adding-file))
(define unknown-module-name "? unknown module name") (define unknown-module-name "? unknown module name")
;; probably, at some point, the module browser should get its
;; own output ports or something instead of wrapping these ones
(define original-output-port (current-output-port))
(define original-error-port (current-error-port))
(define-unit module-overview@ (define-unit module-overview@
(import [prefix drracket:frame: drracket:frame^] (import [prefix drracket:frame: drracket:frame^]
[prefix drracket:eval: drracket:eval^] [prefix drracket:eval: drracket:eval^]
@ -870,6 +876,8 @@
(port-count-lines! prt) (port-count-lines! prt)
prt)) prt))
p)))) p))))
(current-output-port (swallow-specials original-output-port))
(current-error-port (swallow-specials original-error-port))
(current-load-relative-directory init-dir) (current-load-relative-directory init-dir)
(current-directory init-dir) (current-directory init-dir)
(error-display-handler (λ (str exn) (set! error-str str))) (error-display-handler (λ (str exn) (set! error-str str)))
@ -884,6 +892,24 @@
(error-escape-handler (error-escape-handler
(λ () (custodian-shutdown-all user-custodian))) (λ () (custodian-shutdown-all user-custodian)))
(semaphore-post init-complete)))) (semaphore-post init-complete))))
(define (swallow-specials port)
(define-values (in out) (make-pipe-with-specials))
(thread
(λ ()
(let loop ()
(define c (read-char-or-special in))
(cond
[(char? c)
(display c out)
(loop)]
[(eof-object? c)
(close-output-port out)
(close-input-port in)]
[else
(loop)]))))
out)
(define (kill-termination) (void)) (define (kill-termination) (void))
(define complete-program? #t) (define complete-program? #t)