Scala example source code file (unapplyVal.scala)

This example Scala source code file (unapplyVal.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, app, async, async, buffer, get, int, option, put, put, sync, sync, unit

The Scala unapplyVal.scala source code

package test // bug #1215

class Async {
  def unapply(scrut: Any): Option[Any] = None
}

class Buffer {
  val Put = new Async
  //case class Put(x: Int)

  def joinPat(x: Any): Unit = {
    x match {
      case Put => 
      case Put(y) =>
        println("returning "+y)
    }
  }
}


object unapplyJoins extends App { // bug #1257

  class Sync {
    def apply(): Int = 42
    def unapply(scrut: Any): Boolean = false
  }

  class Buffer {
    object Get extends Sync

    val jp: PartialFunction[Any, Any] = {
      case Get() => 
    }
  }

  println((new Buffer).jp.isDefinedAt(42))
}