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networks: Make dynamics inherit from dds and implement dds-step.

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This commit is contained in:
Sergiu Ivanov 2020-02-23 12:19:47 +01:00
parent 9e818ad2bf
commit 5d5d0347e8
2 changed files with 16 additions and 3 deletions
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9
networks-tests.rkt
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@ -107,4 +107,11 @@
(check-equal? (dynamics-network asyn) n)
(check-equal? (dynamics-mode asyn) (set (set 'a) (set 'b)))
(check-equal? (dynamics-network syn) n)
(check-equal? (dynamics-mode syn) (set (set 'a 'b)))))
(check-equal? (dynamics-mode syn) (set (set 'a 'b))))
(let* ([n (nn '((a . (not a)) (b . b)))]
[asyn (make-asyn-dynamics n)]
[syn (make-syn-dynamics n)]
[s (st '((a . #t) (b . #f)))])
(check-equal? (dds-step asyn s) (set (st '((a . #f) (b . #f)))
(st '((a . #t) (b . #f)))))
(check-equal? (dds-step syn s) (set (st '((a . #f) (b . #f)))))))

10
networks.rkt
View file

@ -35,7 +35,9 @@
[make-syn (-> (listof variable?) mode?)]
[make-dynamics-from-func (-> network? (-> (listof variable?) mode?) dynamics?)]
[make-asyn-dynamics (-> network? dynamics?)]
[make-syn-dynamics (-> network? dynamics?)])
[make-syn-dynamics (-> network? dynamics?)]
[dds-step (-> dynamics? state? (set/c state?))]
)
;; Predicates
(contract-out [variable? (-> any/c boolean?)]
[state? (-> any/c boolean?)]
@ -258,7 +260,11 @@
(define mode? (set/c (set/c variable?)))
;;; A network dynamics is a network plus a mode.
(struct dynamics (network mode))
(struct dynamics (network mode)
#:methods gen:dds
[(define/match (dds-step dyn s)
[((dynamics network mode) s)
(for/set ([m mode]) (update network s m))])])
;;; Given a list of variables, builds the asynchronous mode (a set of
;;; singletons).