scala.collection.generic.IterableForwarder.scala Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of scala-library Show documentation
Show all versions of scala-library Show documentation
Standard library for the SubScript extension of the Scala Programming Language
The newest version!
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala
package collection
package generic
import scala.collection._
/** This trait implements a forwarder for iterable objects. It forwards
* all calls to a different iterable object, except for
*
* - `toString`, `hashCode`, `equals`, `stringPrefix`
* - `newBuilder`, `view`
* - all calls creating a new iterable object of the same kind
*
* The above methods are forwarded by subclass `IterableProxy`.
*
* @author Martin Odersky
* @version 2.8
* @since 2.8
*/
@deprecated("Forwarding is inherently unreliable since it is not automated and methods can be forgotten.", "2.11.0")
trait IterableForwarder[+A] extends Iterable[A] with TraversableForwarder[A] {
/** The iterable object to which calls are forwarded */
protected def underlying: Iterable[A]
// Iterable delegates
// Iterable methods could be printed by cat IterableLike.scala | sed -n '/trait Iterable/,$ p' | egrep '^ (override )?def'
override def iterator: Iterator[A] = underlying.iterator
override def sameElements[B >: A](that: GenIterable[B]): Boolean = underlying.sameElements(that)
}