Question

Is there an introspection api somewhere in Scala to find the traits a class is implementing ?

For Scala 2.9.2 that is.

Answer 1

Trait in Scala translate to interfaces in Java, so you can use Java’s reflection library to find out which traits are implemented. Here is an example:

trait Foo
class Bar extends Foo 

val b = new Bar
b.getClass.getInterfaces.foreach(println)

This prints:

interface Foo
interface scala.ScalaObject