alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Scala example source code file (SeqFactory.scala)

This example Scala source code file (SeqFactory.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

cc, generictraversabletemplate, genseqfactory, seq, seqfactory, some, traversablefactory

The SeqFactory.scala Scala example source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2003-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */



package scala
package collection
package generic
import scala.language.higherKinds

/** A template for companion objects of Seq and subclasses thereof.
 *
 *  @since 2.8
 */
abstract class SeqFactory[CC[X] <: Seq[X] with GenericTraversableTemplate[X, CC]]
extends GenSeqFactory[CC] with TraversableFactory[CC] {

  /** This method is called in a pattern match { case Seq(...) => }.
   *
   *  @param x the selector value
   *  @return  sequence wrapped in an option, if this is a Seq, otherwise none
   */
  def unapplySeq[A](x: CC[A]): Some[CC[A]] = Some(x)

}

Other Scala source code examples

Here is a short list of links related to this Scala SeqFactory.scala source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2024 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.