I have the following Java method:
public <T> void foo(Class<T> parentClass, Class<? extends T> childClass);
I tried to use an implicit ClassTag to call the above method, but unfortunately the runtime methods returns an erased class, i.e., Class[_], which means the follow code won't work:
import scala.reflect.classTag
def bar[A: ClassTag, B <: A : ClassTag] = foo(classTag[A].runtimeClass, classTag[B].runtimeclass)
I can get around it by using asInstanceOf, but I was wondering if there's a cleaner solution. It feels really weird to me that there isn't a method that returns a non-erased Class value from a ClassTag in the standard library.
To be clear, I'm looking for an existing method (In the ClassTag class or elsewhere) with the following signature:
def unerasedRuntimeClass[A: ClassTag]: Class[A] = ???