alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Scala example source code file (ArrayLike.scala)

This example Scala source code file (ArrayLike.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Scala tags/keywords

any, any, anyref, anyref, array, arraylike, boolean, indexedseqoptimized, int, repr, repr, string, string

The Scala ArrayLike.scala source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2003-2011, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */



package scala.collection
package mutable
import generic._

/** A common supertrait of `ArrayOps` and `WrappedArray` that factors out most
 *  operations on arrays and wrapped arrays.
 *  
 *  @tparam A     type of the elements contained in the array like object.
 *  @tparam Repr  the type of the actual collection containing the elements.
 *  
 *  @define Coll ArrayLike
 *  @version 2.8
 *  @since   2.8
 */
trait ArrayLike[A, +Repr] extends IndexedSeqOptimized[A, Repr] { self =>

  /** Creates a possible nested `IndexedSeq` which consists of all the elements
   *  of this array. If the elements are arrays themselves, the `deep` transformation
   *  is applied recursively to them. The `stringPrefix` of the `IndexedSeq` is
   *  "Array", hence the `IndexedSeq` prints like an array with all its
   *  elements shown, and the same recursively for any subarrays.
   *
   *  Example:
   *  {{{
   *  Array(Array(1, 2), Array(3, 4)).deep.toString
   *  }}}
   *  prints: `Array(Array(1, 2), Array(3, 4))`
   *
   *  @return    An possibly nested indexed sequence of consisting of all the elements of the array.
   */
  def deep: scala.collection.IndexedSeq[Any] = new scala.collection.IndexedSeq[Any] {
    def length = self.length
    def apply(idx: Int): Any = self.apply(idx) match {
      case x: AnyRef if x.getClass.isArray => WrappedArray.make(x).deep
      case x => x
    }
    override def stringPrefix = "Array"
  }

  @deprecated("use deep.toString instead", "2.8.0")
  final def deepToString() = 
    deep.toString

  @deprecated("use deep.mkString instead", "2.8.0")
  final def deepMkString(start: String, sep: String, end: String): String =
    deep.mkString(start, sep, end)

  @deprecated("use deep.mkString instead", "2.8.0")
  final def deepMkString(sep: String): String = 
    deepMkString("", sep, "")

  @deprecated("use array1.deep.equals(array2.deep) instead", "2.8.0")
  final def deepEquals(that: Any): Boolean = that match {
    case x: AnyRef if x.getClass.isArray => deep.equals(WrappedArray.make(x).deep)
    case _ => false
  }
}

Other Scala examples (source code examples)

Here is a short list of links related to this Scala ArrayLike.scala source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.