Thanks, I did catch that, was just pointing out the non-termination. The original source file was much larger and it took awhile to pare it down to the root cause. Definitely a non-showstopper issue however.
On Thu, Nov 1, 2012 at 12:16 PM, Sam Tobin-Hochstadt <sa...@ccs.neu.edu>wrote: > On Thu, Nov 1, 2012 at 12:07 PM, Ray Racine <ray.rac...@gmail.com> wrote: > > Fresh build from Racket git MASTER, the following causes DRRacket's Check > > Syntax to loop without termination. > > Clearly, this isn't the behavior you want, but I don't think a > contract is possible to generate for this code. > > If you change the type of the S2-x field to `(S0 T)`, then it works. > That might even have been what you wanted. > > > > > #lang typed/racket/base > > > > (provide f) > > > > (struct: (T) S1 ([x : (Listof String)])) > > > > (struct: (T) S2 ([x : S0] > > [g : (T -> Boolean)])) > > > > (define-type (S0 T) (U (S1 T) (S2 T))) > > > > (: f (String -> (S0 String))) > > (define (f x) > > (S1 '())) > > > > ____________________ > > Racket Users list: > > http://lists.racket-lang.org/users > > > > > > -- > sam th > sa...@ccs.neu.edu >
____________________ Racket Users list: http://lists.racket-lang.org/users
