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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala.collection.generic
import scala.collection._
import mutable.{ Buffer, StringBuilder }
import immutable.{ List, Stream }
import scala.reflect.ClassTag
/** This trait implements a forwarder for traversable objects. It forwards
* all calls to a different traversable, except for:
*
* - `toString`, `hashCode`, `equals`, `stringPrefix`
* - `newBuilder`, `view`
*
* All calls creating a new traversable of the same kind.
*
* @author Martin Odersky
* @version 2.8
* @since 2.8
*/
trait TraversableForwarder[+A] extends Traversable[A] {
/** The traversable object to which calls are forwarded. */
protected def underlying: Traversable[A]
override def foreach[B](f: A => B): Unit = underlying foreach f
override def isEmpty: Boolean = underlying.isEmpty
override def nonEmpty: Boolean = underlying.nonEmpty
override def size: Int = underlying.size
override def hasDefiniteSize = underlying.hasDefiniteSize
override def forall(p: A => Boolean): Boolean = underlying forall p
override def exists(p: A => Boolean): Boolean = underlying exists p
override def count(p: A => Boolean): Int = underlying count p
override def find(p: A => Boolean): Option[A] = underlying find p
override def foldLeft[B](z: B)(op: (B, A) => B): B = underlying.foldLeft(z)(op)
override def /: [B](z: B)(op: (B, A) => B): B = underlying./:(z)(op)
override def foldRight[B](z: B)(op: (A, B) => B): B = underlying.foldRight(z)(op)
override def :\ [B](z: B)(op: (A, B) => B): B = underlying.:\(z)(op)
override def reduceLeft[B >: A](op: (B, A) => B): B = underlying.reduceLeft(op)
override def reduceLeftOption[B >: A](op: (B, A) => B): Option[B] = underlying.reduceLeftOption(op)
override def reduceRight[B >: A](op: (A, B) => B): B = underlying.reduceRight(op)
override def reduceRightOption[B >: A](op: (A, B) => B): Option[B] = underlying.reduceRightOption(op)
override def sum[B >: A](implicit num: Numeric[B]): B = underlying sum num
override def product[B >: A](implicit num: Numeric[B]): B = underlying product num
override def min[B >: A](implicit cmp: Ordering[B]): A = underlying min cmp
override def max[B >: A](implicit cmp: Ordering[B]): A = underlying max cmp
override def head: A = underlying.head
override def headOption: Option[A] = underlying.headOption
override def last: A = underlying.last
override def lastOption: Option[A] = underlying.lastOption
override def copyToBuffer[B >: A](dest: Buffer[B]) = underlying.copyToBuffer(dest)
override def copyToArray[B >: A](xs: Array[B], start: Int, len: Int) = underlying.copyToArray(xs, start, len)
override def copyToArray[B >: A](xs: Array[B], start: Int) = underlying.copyToArray(xs, start)
override def copyToArray[B >: A](xs: Array[B]) = underlying.copyToArray(xs)
override def toArray[B >: A: ClassTag]: Array[B] = underlying.toArray
override def toList: List[A] = underlying.toList
override def toIterable: Iterable[A] = underlying.toIterable
override def toSeq: Seq[A] = underlying.toSeq
override def toIndexedSeq = underlying.toIndexedSeq
override def toBuffer[B >: A] = underlying.toBuffer
override def toStream: Stream[A] = underlying.toStream
override def toSet[B >: A]: immutable.Set[B] = underlying.toSet
override def toMap[T, U](implicit ev: A <:< (T, U)): immutable.Map[T, U] = underlying.toMap(ev)
override def mkString(start: String, sep: String, end: String): String = underlying.mkString(start, sep, end)
override def mkString(sep: String): String = underlying.mkString(sep)
override def mkString: String = underlying.mkString
override def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder = underlying.addString(b, start, sep, end)
override def addString(b: StringBuilder, sep: String): StringBuilder = underlying.addString(b, sep)
override def addString(b: StringBuilder): StringBuilder = underlying.addString(b)
}
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