/*                     __                                               *\
**     ________ ___   / /  ___     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 <a href="../IterableProxy.html"
 *  target="ContentFrame">`IterableProxy`</a>.
 *
 *  @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)
}
