PartialFunction.scala

gistfile1.txt

class A{
	val x: PartialFunction[Any, Int] = {
      case Some(x: Int) => x
    }
}

scalac.scala

[[syntax trees at end of                   cleanup]] // a.scala
package <empty> {
  class A extends Object {
    private[this] val x: PartialFunction = _;
    <stable> <accessor> def x(): PartialFunction = A.this.x;
    def <init>(): A = {
      A.super.<init>();
      A.this.x = ({
        new <$anon: Function1>(A.this)
      }: PartialFunction);
      ()
    }
  };
  @SerialVersionUID(value = 0) final <synthetic> class anonfun$1 extends scala.runtime.AbstractPartialFunction with Serializable {
    final override def applyOrElse(x1: Object, default: Function1): Object = {
      case <synthetic> val x1: Object = (((x1: Object): Object): Object);
      case6(){
        if (x1.$isInstanceOf[Some]())
          {
            <synthetic> val x2: Some = (x1.$asInstanceOf[Some](): Some);
            {
              val x: Object = x2.value();
              if (x.$isInstanceOf[Int]())
                {
                  <synthetic> val x3: Int = (scala.Int.unbox(x): Int);
                  matchEnd5(scala.Int.box(x3))
                }
              else
                case7()
            }
          }
        else
          case7()
      };
      case7(){
        matchEnd5(default.apply(x1))
      };
      matchEnd5(x: Object){
        x
      }
    };
    final def isDefinedAt(x1: Object): Boolean = {
      case <synthetic> val x1: Object = (((x1: Object): Object): Object);
      case6(){
        if (x1.$isInstanceOf[Some]())
          {
            <synthetic> val x2: Some = (x1.$asInstanceOf[Some](): Some);
            {
              val x: Object = x2.value();
              if (x.$isInstanceOf[Int]())
                matchEnd5(true)
              else
                case7()
            }
          }
        else
          case7()
      };
      case7(){
        matchEnd5(false)
      };
      matchEnd5(x: Boolean){
        x
      }
    };
    def <init>($outer: A): <$anon: Function1> = {
      anonfun$1.super.<init>();
      ()
    }
  }
}