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Standard library for the Scala Programming Language
/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003-2013, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
package scala
package collection
package mutable
/** The canonical builder for mutable Sets.
*
* @tparam A The type of the elements that will be contained in this set.
* @tparam Coll The type of the actual collection this set builds.
* @param empty The empty element of the collection.
* @since 2.8
*/
class SetBuilder[A, Coll <: scala.collection.Set[A]
with scala.collection.SetLike[A, Coll]](empty: Coll)
extends ReusableBuilder[A, Coll] {
protected var elems: Coll = empty
def +=(x: A): this.type = { elems = elems + x; this }
def clear() { elems = empty }
def result: Coll = elems
}