[racket] the typed Values restriction

From: Sam Tobin-Hochstadt (samth at cs.indiana.edu)
Date: Wed Mar 18 17:29:17 EDT 2015

If you want the continuation-passing-style version, you'll need to
explicitly handle the multiple-ness of multiple values:

#lang typed/racket

(: my-force (All (A ...) (-> (-> (Values A ...)) (Values A ...))))
(define (my-force x) (x))

(ann (my-force (lambda () (values (void) (void)))) (Values Void Void))


On Wed, Mar 18, 2015 at 5:23 PM Benjamin Greenman <blg59 at cornell.edu> wrote:

> On Wed, Mar 18, 2015 at 5:16 PM, Michael Wilber <gcr at sneakygcr.net> wrote:
>> this doesn't work in vanilla Racket
> Sure, but it works without the let! For context, I ran into this issue
> adding types to a function originally written in continuation passing
> style. Switching to cons was an easy fix.
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