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 <[email protected]> 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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