tuple2.scala

来自「JAVA 语言的函数式编程扩展」· SCALA 代码 · 共 32 行

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2002-2008, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

// $Id: Tuple2.scala 14670 2008-04-16 14:47:55Z washburn $

// generated by genprod on Wed Apr 16 16:46:04 CEST 2008  (with extra methods)

package scala

/** Tuple2 is the canonical representation of a @see Product2 
 *  
 */
case class Tuple2[+T1, +T2](_1:T1, _2:T2) 
  extends Product2[T1, T2]  {

   override def toString() = {
     val sb = new StringBuilder
     sb.append('(').append(_1).append(',').append(_2).append(')')
     sb.toString
   }
  
  /** Swap the elements of the tuple */
  def swap: Tuple2[T2,T1] = Tuple2(_2, _1)

}