Aha. That indeed doesn't work, and there are hard problems there. In
particular, we'd need to be able to get inside the struct to wrap
individual fields appropriately, but that's trickier with
potentially-opaque structs. I hope that we can support this in the
future, though.
Sam
On Fri, Jul 3, 2015 at 2:26 AM, Jordan Johnson j...@fellowhuman.com wrote:
On Jul 2, 2015, at 5:15 PM, Sam Tobin-Hochstadt sa...@cs.indiana.edu
wrote:
No, that's not correct. This program works fine:
#lang typed/racket/base
(require/typed racket/function [identity (All (A) (- A A))])
(identity 5)
Can you say more about what part of the documentation gave you that
impression, so we can correct that?
Ah - I forgot a crucial detail, sorry: I was trying to figure out how to
write parametric struct types with #:struct. The docs for require/typed
don’t offer the maybe-type-vars portion of the grammar for struct.
jmj
Sam
On Fri, Jul 3, 2015 at 1:59 AM, Jordan Johnson j...@fellowhuman.com wrote:
Hi all,
If I’m reading the docs source correctly, it looks like it’s impossible to
use require/typed to attach a parametric type to an import. Is that right?
I’m also a bit curious if that’s because adding that capability is a
difficult or impossible proposition.
Cheers,
jmj
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