22 lines
502 B
Racket
22 lines
502 B
Racket
#lang typed/syndicate
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;; Expected Output
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;; query: 0
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;; query: 19
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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 querier
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(define/query-value key 0 (tuple "key" (bind v Int)) (+ v 1))
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(assert (tuple "query" (ref key)))))
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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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(during (tuple "query" (bind v Int))
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(on start
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(printf "query: ~v\n" v))))))
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