/usr/share/racket/pkgs/frtime/reactive.rkt is in racket-common 6.7-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | (module reactive frtime/lang-utils
(require (except-in "lang-ext.rkt" undefined undefined?)
"frp-snip.rkt"
frtime/frlibs/list
frtime/frlibs/etc
(as-is:unchecked frtime/core/frp
event-set? snap? signal-value))
(snap? #t)
(define (value-nowable? x)
(or (not (signal? x))
(not (event-set? (signal-value x)))))
(define ((behaviorof pred) x)
(let ([v (value-now x)])
(or (undefined? v)
(pred v))))
(provide value-nowable? behaviorof
(all-from-out frtime/frlibs/list)
(all-from-out frtime/frlibs/etc)
(all-from-out frtime/lang-utils)
(except-out (all-from-out "lang-ext.rkt") lift)
(all-from-out "frp-snip.rkt")))
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