Scala example source code file (Reference.scala)

This example Scala source code file (Reference.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Scala source code examples by using tags.

All credit for the original source code belongs to scala-lang.org; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Scala tags/keywords

anyref, boolean, function0, option, reference, t, unit

The Reference.scala Scala example source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2006-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

package scala.ref

/**
 * @see `java.lang.ref.Reference`
 * @author Sean McDirmid
 */
trait Reference[+T <: AnyRef] extends Function0[T] {
  /** return the underlying value */
  def apply(): T
  /** return `Some` underlying if it hasn't been collected, otherwise `None` */
  def get: Option[T]
  override def toString = get.map(_.toString).getOrElse("<deleted>")
  def clear(): Unit
  def enqueue(): Boolean
  def isEnqueued(): Boolean
}