Scala example source code file (Compilers.scala)

This example Scala source code file (Compilers.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

array, breaking, compiler, compiler, compilers, compilers, making, mb, mb, net, network, null, pair, settings, string, string

The Scala Compilers.scala source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala Ant Tasks                      **
**    / __/ __// _ | / /  / _ |    (c) 2005-2011, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */


package scala.tools.ant.sabbus

import java.net.URL

object Compilers extends collection.DefaultMap[String, Compiler] {
  
  val debug = false
  
  private val container = new collection.mutable.HashMap[String, Compiler]
  
  def iterator = container.iterator	
  
  def get(id: String) = container.get(id)
  
  override def size = container.size
  
  def make(id: String, classpath: Array[URL], settings: Settings): Compiler = {
    val runtime = Runtime.getRuntime
    if (debug) println("Making compiler " + id)
    if (debug) println("  memory before: " + (runtime.freeMemory/1048576.).formatted("%10.2f") + " MB")
    val comp = new Compiler(classpath, settings)
    container += Pair(id, comp)
    if (debug) println("  memory after: " + (runtime.freeMemory/1048576.).formatted("%10.2f") + " MB")
    comp
  }
  
  def break(id: String): Null = {
    val runtime = Runtime.getRuntime
    if (debug) println("Breaking compiler " + id)
    if (debug) println("  memory before: " + (runtime.freeMemory/1048576.).formatted("%10.2f") + " MB")
    container -= id
    System.gc
    if (debug) println("  memory after: " + (runtime.freeMemory/1048576.).formatted("%10.2f") + " MB")
    null
  }
}