Scala example source code file (bug3714.scala)

This example Scala source code file (bug3714.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, array, array, break, break, breakimpl, breakimpl, int, int, test

The Scala bug3714.scala source code

trait Break {
  protected val break: Int;
}

case class BreakImpl(protected val break: Int) extends Break { }

object Test {
  // def f1(x: Break) = x match {
  //   case b: BreakImpl => b.break
  //   case b            => -1
  // }
  def f2(x: Break) = x match {
    case BreakImpl(x) => x
    case _            => -1
  }
  // def f3(x: Any) = x match {
  //   case b: BreakImpl => b.break
  //   case b            => -1
  // }
  def f4(x: Any) = x match {
    case BreakImpl(x) => x
    case _            => -1
  }
  
  def main(args: Array[String]) {
    val break = BreakImpl(22)
    // assert(f1(break) == 22)
    assert(f2(break) == 22)
    // assert(f3(break) == 22)
    assert(f4(break) == 22)
  }
}