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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2008, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id: Iterable.scala 15188 2008-05-24 15:01:02Z stepancheg $
package scalax.collection.mutable
/** This class represents collections that can be augmented using a += operator.
*
* @autor Martin Odersky
* @owner Martin Odersky
* @version 2.8
*/
trait Appendable[A] {
/** Append a single element to this buffer.
*
* @param elem the element to append.
*/
def +=(elem: A): Unit
/** Append a two or more elements to this buffer.
*
* @param elem1 the first element to append.
* @param elem2 the second element to append.
* @param elems the remaining elements to append.
*/
def +=(elem1: A, elem2: A, elems: A*) {
this += elem1
this += elem2
this ++= elems.asInstanceOf[Iterable[A]] // !@!
}
/** Appends a number of elements provided by an iterator
*
* @param iter the iterator.
*/
def ++=(iter: collection.Iterator[A]) { iter foreach += }
/** Appends a number of elements provided by an iterable object
* via its <code>elements</code> method.
*
* @param iter the iterable object.
*/
def ++=(iter: collection.Iterable[A]) { iter foreach += }
/** Append a single element to this buffer and return
* the identity of the buffer.
*
* @param elem the element to append.
*/
def +(elem: A): this.type = { this += elem; this }
/** Append two or more elements to this buffer and return
* the identity of the buffer.
*
* @param elem1 the first element to append.
* @param elem2 the second element to append.
* @param elems the remaining elements to append.
*/
def +(elem1: A, elem2: A, elems: A*): this.type =
this + elem1 + elem2 ++ elems.asInstanceOf[Iterable[A]] // !@!
/** Appends a number of elements provided by an iterable object
* via its <code>elements</code> method. The identity of the
* buffer is returned.
*
* @param iter the iterable object.
* @return the updated buffer.
*/
def ++(iter: Iterable[A]): this.type = { this ++= iter; this }
/** Appends a number of elements provided by an iterator
* via its <code>elements</code> method. The identity of the
* buffer is returned.
*
* @param iter the iterator
* @return the updated buffer.
*/
def ++(iter: Iterator[A]): this.type = { this ++= iter; this }
/** Clears the buffer contents.
*/
def clear()
}
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