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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2010, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.collection.generic
import scala.collection._
import scala.collection.immutable.Range
/** This class implements a forwarder for sequences. It forwards
* all calls to a different sequence object except for
*
* - toString, hashCode, equals, stringPrefix
* - newBuilder, view, toSeq
* - all calls creating a new sequence of the same kind
*
* The above methods are forwarded by subclass SeqProxy
*
* @author Martin Odersky
* @version 2.8
* @since 2.8
*/
trait SeqForwarder[+A] extends Seq[A] with IterableForwarder[A] {
protected override def underlying: Seq[A]
// PartialFunction delegates
override def apply(i: Int): A = underlying.apply(i)
override def isDefinedAt(x: Int): Boolean = underlying.isDefinedAt(x)
// Seq delegates
// Seq methods could be printed by cat SeqLike.scala | sed -n '/trait Seq/,$ p' | egrep '^ (override )?def'
override def length: Int = underlying.length
override def lengthCompare(l: Int) = underlying lengthCompare l
override def segmentLength(p: A => Boolean, from: Int): Int = underlying.segmentLength(p, from)
override def prefixLength(p: A => Boolean) = underlying.prefixLength(p)
override def indexWhere(p: A => Boolean, from: Int): Int = underlying.indexWhere(p, from)
override def indexOf[B >: A](elem: B, from: Int): Int = underlying.indexOf(elem, from)
override def reverseIterator: Iterator[A] = underlying.reverseIterator
override def startsWith[B](that: Seq[B], offset: Int): Boolean = underlying.startsWith(that, offset)
override def endsWith[B](that: Seq[B]): Boolean = underlying.endsWith(that)
override def indexOfSlice[B >: A](that: Seq[B]): Int = underlying.indexOfSlice(that)
override def contains(elem: Any): Boolean = underlying.contains(elem)
override def indices: Range = underlying.indices
}
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