Those fishy things were errors I made when simplifying and transcribing the
proxy to post, but I have it correct in my own code.
Here's a more precise, tested minimal example:
(definterface Interface (test []))
(def p (proxy [Object Interface] [] (test [] 1)))
(defn get-test [o] (.test ^Interface o))
=> (get-test p)
This throws an error that it can't cast the proxy to Interface.
If you remove the ^Interface type hint, then get-test will work but will
trigger reflection.
Thanks for looking at this. It seems like it should work, but it doesn't.
On Mon, Jul 30, 2018 at 3:06 AM, Nicola Mometto <brobro...@gmail.com> wrote:
> That's exactly what you should do and it does work, e.g.:
>
> user=> (set! *warn-on-reflection* true)
> true
> user=> (.meta ^clojure.lang.IMeta (proxy [clojure.lang.IMeta] [] (meta []
> {:a 1})))
> {:a 1}
>
> In your small example you have two errors that might be fishy: a missing
> arg vector to pass to the super ctor and an extra `this` parameter in the
> method impl (proxy, unlike reify, is anaphoric and binds `this` for you)
>
>
> On 30 Jul 2018, at 10:56, Mark Engelberg <mark.engelb...@gmail.com> wrote:
>
> Let's say I have a proxy object:
>
> (def p (proxy [MyClass MyInterface] (interfaceMethod [this] ...)))
>
> Now, I want to call (.interfaceMethod p). How do I do this without
> reflection?
> I would have thought that (.interfaceMethod ^MyInterface p) would work,
> but this results in an error message that this proxy object cannot be cast
> to MyInterface.
>
>
>
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