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+/* __ *\
+** ________ ___ / / ___ Scala API **
+** / __/ __// _ | / / / _ | (c) 2003-2009, LAMP/EPFL **
+** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
+** /____/\___/_/ |_/____/_/ | | **
+** |/ **
+\* */
+
+// $Id$
+
+
+package scala.collection.generic
+import scala.collection._
+
+/** 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 indexOfSeq[B >: A](that: Seq[B]): Int = underlying.indexOfSeq(that)
+ override def contains(elem: Any): Boolean = underlying.contains(elem)
+ override def indices: Range = underlying.indices
+}