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Scala example source code file (Compiler.scala)

This example Scala source code file (Compiler.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

anyref, array, array, compiler, exception, int, int, invocationtargetexception, invocationtargetexception, io, net, network, reflection, scalaclassloader, settings, string, string

The Scala Compiler.scala source code

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


package scala.tools.ant.sabbus

import java.io.File
import java.net.URL
import java.lang.reflect.InvocationTargetException
import scala.tools.nsc.util.ScalaClassLoader

class Compiler(classpath: Array[URL], val settings: Settings)
{  
  val foreignCompilerName: String = "scala.tools.ant.sabbus.ForeignCompiler"
  private lazy val classLoader = ScalaClassLoader fromURLs classpath
  private lazy val foreignCompiler: AnyRef = classLoader create foreignCompilerName
    
  private def settingsArray: Array[String] = settings.toArgs.toArray
  foreignInvoke("args_$eq", Array(classOf[Array[String]]), Array(settingsArray))
  
  private def foreignInvoke(method: String, types: Array[Class[_]], args: Array[AnyRef]) =
    try foreignCompiler.getClass.getMethod(method, types: _*).invoke(foreignCompiler, args: _*)
    catch {
      case e: InvocationTargetException => throw e.getCause
    }
  
  def compile(files: Array[File]): (Int, Int) = //(errors, warnings)
    try {
      foreignInvoke("args_$eq", Array(classOf[Array[String]]), Array(settingsArray))
      val result =
        foreignInvoke("compile", Array(classOf[Array[File]]), Array(files)).asInstanceOf[Int]
      (result >> 16, result & 0x00FF)
    }
    catch {
      case ex: Exception => throw CompilationFailure(ex.getMessage, ex)
    }
}

Other Scala examples (source code examples)

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