LinearizationABCD.scala

  trait A {
    def hello():String = "Trait A"
  }

  trait B extends A {
    override def hello(): String = "Trait B ->" + super.hello()
  }

  trait C extends A {
    override def hello(): String = "Trait C->" + super.hello()
  }

  class D extends A {
    override def hello(): String = "Class D ->" + super.hello()
  }

  object Diamond extends D with B with C {
    override def hello(): String = "Diamond ->" + super.hello()
  }

  Diamond.hello()  //Diamond ->Trait C->Trait B ->Class D ->Trait A