20 lines
567 B
Racket
20 lines
567 B
Racket
(module frtime "lang-utils.rkt"
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(require (all-except "lang-ext.rkt" lift deep-value-now))
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(require "frp-snip.rkt")
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(require (as-is:unchecked frtime/core/frp
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event-set? signal-value))
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(define (value-nowable? x)
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(or (not (signal? x))
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(not (event-set? (signal-value x)))))
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(define ((behaviorof pred) x)
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(let ([v (value-now x)])
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(or (undefined? v)
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(pred v))))
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(provide value-nowable? behaviorof
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(all-from "lang-ext.rkt")
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(all-from "lang-utils.rkt")
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(all-from "frp-snip.rkt")))
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