scala.collection.generic.MapFactory.scala Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of scala-library Show documentation
Show all versions of scala-library Show documentation
Standard library for the Scala Programming Language
/*
* Scala (https://www.scala-lang.org)
*
* Copyright EPFL and Lightbend, Inc.
*
* Licensed under Apache License 2.0
* (http://www.apache.org/licenses/LICENSE-2.0).
*
* See the NOTICE file distributed with this work for
* additional information regarding copyright ownership.
*/
package scala
package collection
package generic
import scala.language.higherKinds
/** A template for companion objects of `Map` and subclasses thereof.
*
* @define coll map
* @define Coll Map
* @define factoryInfo
* This object provides a set of operations needed to create `$Coll` values.
* @author Martin Odersky
* @since 2.8
* @define canBuildFromInfo
* The standard `CanBuildFrom` instance for `$Coll` objects.
* @see CanBuildFrom
* @define mapCanBuildFromInfo
* The standard `CanBuildFrom` instance for `$Coll` objects.
* The created value is an instance of class `MapCanBuildFrom`.
* @see CanBuildFrom
* @see GenericCanBuildFrom
*/
abstract class MapFactory[CC[A, B] <: Map[A, B] with MapLike[A, B, CC[A, B]]] extends GenMapFactory[CC] {
def empty[A, B]: CC[A, B]
}