Scala example source code file (Function0.scala)

This example Scala source code file (Function0.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, r

The Function0.scala Scala example source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2002-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */
// GENERATED CODE: DO NOT EDIT.
// genprod generated these sources at: Sun Sep 15 20:42:00 CEST 2013

package scala


/** A function of 0 parameters.
 *  
 *  In the following example, the definition of javaVersion is a
 *  shorthand for the anonymous class definition anonfun0:
 *
 *  {{{
 *  object Main extends App {
 *    val javaVersion = () => sys.props("java.version")
 *
 *    val anonfun0 = new Function0[String] {
 *      def apply(): String = sys.props("java.version")
 *    }
 *    assert(javaVersion() == anonfun0())
 * }
 *  }}}
 *
 *  Note that `Function1` does not define a total function, as might
 *  be suggested by the existence of [[scala.PartialFunction]]. The only
 *  distinction between `Function1` and `PartialFunction` is that the
 *  latter can specify inputs which it will not handle.

 */
trait Function0[@specialized(Specializable.Primitives) +R] extends AnyRef { self =>
  /** Apply the body of this function to the arguments.
   *  @return   the result of function application.
   */
  def apply(): R

  override def toString() = "<function0>"
}