A modern programming language that makes developers happier.

kotlinlang

What is "ClassName" and what does type inference have to do with reflection?

But companion objects definitely have an associated `KClass` and `Class`, take a look at all the companion related functions, eg. <https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.reflect.full/companion-object.html>.

When I write `fn(String)`, it passes the companion object of String to fn

But if we know that fn accepts a KClass or a Class object, it can reliably become a shorthand of `String::class` or `String::class.java`

That's very brittle: it only works for some classes, adding a companion object becomes a breaking change and it stops working if that `fn` ever gets an overload.

I mean it resolves as two different objects, which is possibly bad, but only when fn supports multiple types or `Any`

But in that case the compiler could error for ambiguity