I got a `param.type === nz.salect.objJSON.JVMBranc...

# reflect

[albertgao]

I got a param.type === nz.salect.objJSON.JVMBranchTest.MenuObject? where param:KParameter. But when I tried to get the class definition from param.type via param.type::class. Instead of getting the above MenuObject, I get a class kotlin.reflect.jvm.internal.KTypeImpl. How to get my own class , I mean, a KClass ? Thanks 🙂

[albertgao]

Jesus, just need to cast: param.type.classifier as KClass<*>

[udalov]

Depending on your use case, param.type.jvmErasure might be more helpful

[albertgao]

@udalov What’s the differences between the jvmErasure and classifier ?

[udalov]

jvmErasure returns the class that represents the erasure of the given type on JVM. For normal classes, this is always simply that class. For generic type parameters, this is the erasure of the generic bound, or Any if there's no bound.

For example, erasure of a simple type like String is class String itself. Erasure of a type List<String> is class List.

Erasure of T in fun <T> foo() {} is class Any. Erasure of Y in fun <X : Set<String>, Y : X> bar() {} is class Set.