22 lines
437 B
Racket
22 lines
437 B
Racket
#lang typed/syndicate
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;; Expected Output
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;; f: 0
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;; f: 18
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(define-type-alias ds-type
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(U (Tuple String Int)
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(Observe ★/t)))
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(run-ground-dataspace ds-type
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(spawn ds-type
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(start-facet server
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(field [f Int 0])
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(begin/dataflow
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(printf "f = ~v\n" (ref f)))
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(on (asserted (tuple "key" (bind v Int)))
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(set! f v))))
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(spawn ds-type
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(start-facet client
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(assert (tuple "key" 18)))))
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