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implement sc->constraints for recursive-sc (#381)

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Alex Knauth 2016-07-03 22:47:52 -04:00 committed by GitHub
parent 34d16fe1d8
commit 76cb6ae53d
1 changed files with 4 additions and 2 deletions
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typed-racket-lib/typed-racket/static-contracts/structures.rkt
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@ -105,7 +105,7 @@
;; Takes a static contract and returns the corresponding contract.
;; The function argument should be used for sub parts of the static contract.
[sc->contract sc f]
;; sc->constraints: static-contract? (static-contract? -> constraint-set?) -> constraint-set?
;; sc->constraints: static-contract? (static-contract? -> contract-restrict?) -> contract-restrict?
;; Takes a static contract and computes the constraint set for a static contract.
;; The function argument should be used for sub parts of the static contract.
[sc->constraints sc f]
@ -139,7 +139,9 @@
[(recursive-sc names values body)
(for-each (λ (v) (f v 'covariant)) values)
(f body 'covariant)
(void)]))]
(void)]))
(define (sc->constraints v f)
(simple-contract-restrict 'impersonator))]
#:methods gen:custom-write [(define write-proc recursive-sc-write-proc)])
;; A use of a contract bound by recursive-sc