scala.collection.mutable.Buffer.scala Maven / Gradle / Ivy
/*
* 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 mutable
import generic._
/** Buffers are used to create sequences of elements incrementally by
* appending, prepending, or inserting new elements. It is also
* possible to access and modify elements in a random access fashion
* via the index of the element in the current sequence.
*
* @author Matthias Zenger
* @author Martin Odersky
* @since 1
*
* @tparam A type of the elements contained in this buffer.
*
* @define Coll `Buffer`
* @define coll buffer
*/
trait Buffer[A] extends Seq[A]
with GenericTraversableTemplate[A, Buffer]
with BufferLike[A, Buffer[A]]
with scala.Cloneable {
override def companion: GenericCompanion[Buffer] = Buffer
}
/** $factoryInfo
* @define coll buffer
* @define Coll `Buffer`
*/
object Buffer extends SeqFactory[Buffer] {
implicit def canBuildFrom[A]: CanBuildFrom[Coll, A, Buffer[A]] = ReusableCBF.asInstanceOf[GenericCanBuildFrom[A]]
def newBuilder[A]: Builder[A, Buffer[A]] = new ArrayBuffer
}
/** Explicit instantiation of the `Buffer` trait to reduce class file size in subclasses. */
abstract class AbstractBuffer[A] extends AbstractSeq[A] with Buffer[A]