28 lines
806 B
Racket
28 lines
806 B
Racket
#lang syndicate/core
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;; Analogous to nc-incremental-swap-int-and-claim.rkt in the Redex model.
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;; Demonstrates (hopefully) correct processing of feedback at interest switches.
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(require rackunit)
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(actor (lambda (e u)
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(if (< (length u) 3)
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(transition
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(append u (list e))
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(if (null? u)
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(patch-seq (assert 'a) (unsub 'a))
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'()))
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(begin0 #f (check-equal? u (list #f #f #f)))))
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'()
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(sub 'a))
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(actor (lambda (e u)
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(if (< (length u) 3)
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(transition
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(append u (list e))
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(if (null? u)
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(patch-seq (retract 'b) (sub 'b))
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'()))
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(begin0 #f (check-equal? u (list #f #f #f)))))
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'()
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(assert 'b))
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