Scala example source code file (partialfun.scala)

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Java - Scala tags/keywords

matcherror, none, none, option, option, partialfunction, partialfunction, some, some

The Scala partialfun.scala source code

object partialfun {

  def applyPartial[b](f: PartialFunction[Option[String], b])(x: Option[String]) = 
    if (f.isDefinedAt(x)) f(x) else "<undefined>";

  applyPartial {
    case Some(xxx) => xxx
    case None => throw new MatchError(None)
  } (None);

}