Scala example source code file (ForeignCompiler.scala)

This example Scala source code file (ForeignCompiler.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Scala source code examples by using tags.

All credit for the original source code belongs to scala-lang.org; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Scala tags/keywords

ant, array, compiler, consolereporter, exception, fatalerror, foreigncompiler, global, int, nothing, nsc, string

The ForeignCompiler.scala Scala example source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala Ant Tasks                      **
**    / __/ __// _ | / /  / _ |    (c) 2005-2013, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */


package scala.tools.ant.sabbus

import java.io.File

import scala.tools.nsc._
import scala.tools.nsc.reporters.ConsoleReporter

class ForeignCompiler {

  private var argsBuffer: Array[String] = null
  def args: Array[String] = argsBuffer
  def args_=(a: Array[String]) {
    argsBuffer = a
    nsc
  }

  private val error: (String => Nothing) = { msg => throw new Exception(msg) }

  private def settings = new scala.tools.nsc.Settings(error)

  private lazy val reporter = new ConsoleReporter(settings)

  private lazy val nsc: Global = {
    try {
      val command = new CompilerCommand(args.toList, settings)
      new Global(command.settings, reporter)
    }
    catch {
      case ex @ FatalError(msg) =>
        throw new Exception(msg, ex)
    }
  }

  def compile(files: Array[File]): Int = {
    val command = new CompilerCommand(files.toList map (_.toString), settings)
    (new nsc.Run) compile command.files
    reporter.ERROR.count << 16 | reporter.WARNING.count
  }

}