Scala example source code file (Product4.scala)

This example Scala source code file (Product4.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

any, int, option, product, product4, some, t1, t2, t3, t4

The Product4.scala Scala example source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2002-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */
// GENERATED CODE: DO NOT EDIT. See scala.Function0 for timestamp.

package scala

object Product4 {
  def unapply[T1, T2, T3, T4](x: Product4[T1, T2, T3, T4]): Option[Product4[T1, T2, T3, T4]] =
    Some(x)
}

/** Product4 is a cartesian product of 4 components.
 *  @since 2.3
 */
trait Product4[+T1, +T2, +T3, +T4] extends Any with Product {
  /** The arity of this product.
   *  @return 4
   */
  override def productArity = 4

  
  /** Returns the n-th projection of this product if 0 < n <= productArity,
   *  otherwise throws an `IndexOutOfBoundsException`.
   *
   *  @param n number of the projection to be returned
   *  @return  same as `._(n+1)`, for example `productElement(0)` is the same as `._1`.
   *  @throws  IndexOutOfBoundsException
   */

  @throws(classOf[IndexOutOfBoundsException])
  override def productElement(n: Int) = n match { 
    case 0 => _1
    case 1 => _2
    case 2 => _3
    case 3 => _4
    case _ => throw new IndexOutOfBoundsException(n.toString())
 }

  /** A projection of element 1 of this Product.
   *  @return   A projection of element 1.
   */
  def _1: T1
  /** A projection of element 2 of this Product.
   *  @return   A projection of element 2.
   */
  def _2: T2
  /** A projection of element 3 of this Product.
   *  @return   A projection of element 3.
   */
  def _3: T3
  /** A projection of element 4 of this Product.
   *  @return   A projection of element 4.
   */
  def _4: T4


}