Hello, I am trying to replicate the type of apply: tmp.rkt> apply - : (All (a b) (-> (-> a * b) (Listof a) b)) #<procedure:apply> So, I define my own function: (: my-apply (All (a b) (-> (-> a * b) (Listof a) b))) (define (my-apply f xs) (apply f xs)) I define a fixed-arity function f: (: f (->…

Replicating the type of `apply`

samth March 7, 2022, 6:26pm 3

apply is handled specially by the type checker, so you can't replicate its behavior exactly for your own code.

2 Likes

Passing procedures of unknow arity across typed/untyped boundary

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