path: root/test/files/run/mixins.scala

// $Id$

// Test 1: "super" coming from mixins

import java.lang.System.out.println;

object Test1 {
  class A {
    def f = "A::f";
  }

  class B extends A {
    override def f = "B::f";
  }

  class M1 extends A {
    override def f = "M1::" + super.f;
  }

  class C extends B with M1 {
    override def f = super[M1].f;
  }

  def main(args: Array[String]): Unit = {
    val c = new C;
    println(c.f);
  }
}

// Test 2: qualified "super" inside of the host class

object Test2 {
  class M1 {
    def f = "M1::f";
  }

  class M2 {
    def f = "M2::f";
  }

  class M3 {
    def f = "M3::f";
  }

  class Host with M1 with M2 with M3 {
    override def f = super[M1].f + " " + super[M2].f + " " + super[M3].f
  }

  def main(args: Array[String]): Unit = {
    val h = new Host;
    println(h.f)
  }
}

// Test 3: mixin evaluation order (bug 120)

object Test3 {

  class A(x: Unit, y: Unit) {
    println("A");
  }

  class B(x: Unit) {
    println("B");
  }

  class C with A({ println("one"); }, { println("two"); })
          with B({ println("three"); }) {
    println("C");
  }

  def main(args: Array[String]) = {
    val c = new C();
  }
}

// Main testing function

object Test {
  def main(args: Array[String]): Unit = {
    Test1.main(args);
    Test2.main(args);
    Test3.main(args);
  }
}