import scala.reflect.runtime.universe._ object Test extends App { def foo[T](x: T) = weakTypeOf(List(x)) println(foo(2)) locally { class C; println(weakTypeOf(new C)) } println(typeOf(2)) println(typeOf(List(1, "1"))) println(typeOf(new { def x = 2 })) println(typeOf[Null]) println(typeOf[Nothing]) println(typeOf(null)) }