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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2010, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.collection
package generic
/** This trait forms part of collections that can be augmented
* using a `+=` operator and that can be cleared of all elements using
* a `clear` method.
*
* @author Martin Odersky
* @owner Martin Odersky
* @version 2.8
* @since 2.8
* @define coll growable collection
* @define Coll Growable
* @define add add
* @define Add add
*/
trait Growable[-A] {
/** ${Add}s a single element to this $coll.
*
* @param elem the element to $add.
* @return the $coll itself
*/
def +=(elem: A): this.type
/** ${Add}s two or more elements to this $coll.
*
* @param elem1 the first element to $add.
* @param elem2 the second element to $add.
* @param elems the remaining elements to $add.
* @return the $coll itself
*/
def +=(elem1: A, elem2: A, elems: A*): this.type = this += elem1 += elem2 ++= elems
/** ${Add}s all elements produced by an iterator to this $coll.
*
* @param iter the iterator producing the elements to $add.
* @return the $coll itself.
*/
def ++=(iter: Iterator[A]): this.type = { iter foreach += ; this }
/** ${Add}s all elements contained in a traversable collection to this $coll.
*
* @param elems the collection containing the elements to $add.
* @return the $coll itself.
*/
def ++=(elems: Traversable[A]): this.type = { elems foreach +=; this }
/** Clears the $coll's contents. After this operation, the
* $coll is empty.
*/
def clear()
}
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