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kotlinlang

If I have a function with overloading, how can I get a `KFunction` reference to one of the overloads? I found I can use `val ref: (String) -&gt; Unit`, for instance, as a way to disambiguate but the resulting type is not `KFunction`. It seems like I can cast this without everything crashing, but it's messy to use and not sure how stable that is.

If you have a reference like that, there's an experimental `reflect()` function that should get you a KFunction from it. That's the first thing that comes to mind; there might be a better solution

using some generic type intersection trickery, <https://pl.kotl.in/wTyEg9wVR> involves no casting

(nor full reflection, which isn't available on playground)

Using `where` is a good trick there; I came up with the rest of it as well but still needed a raw cast to `KFunction`. It's still a little messy due to requiring `_` for the return type (TypeScript's infer comes to mind here), but overall works out. I had tried using `T : Function&lt;R&gt;` to allow the generic type to be written as a lambda (also effectively working for any arity) but it doesn't quite work because Kotlin doesn't allow multiple restrictions in `where` if one of them is another generic type.

<https://youtrack.jetbrains.com/issue/KT-1215> maybe someday