Scala example source code file (t1059.scala)

This example Scala source code file (t1059.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

any, any, array, node, node, none, none, option, partialfunction, safenodeseq, safenodeseq, seq, some, unit

The Scala t1059.scala source code

package com;

import scala.xml._

object Main {

    def main(args : Array[String]) : Unit = {

        var m : PartialFunction[Any, Any] = {

            case SafeNodeSeq(s @ _*) => println(s) }

        println(m(<a/> ++ ))
        println(m.isDefinedAt(<a/> ++ ))

    }

}

object SafeNodeSeq {

    def unapplySeq(any: Any) : Option[Seq[Node]] = any match { case s: Seq[_] => Some(s flatMap ( _ match {

        case n: Node => n case _ => NodeSeq.Empty

    })) case _ => None }

}