/
ObjectRunner.scala
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/
ObjectRunner.scala
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/*
* Scala (https://www.scala-lang.org)
*
* Copyright EPFL and Lightbend, Inc.
*
* Licensed under Apache License 2.0
* (http://www.apache.org/licenses/LICENSE-2.0).
*
* See the NOTICE file distributed with this work for
* additional information regarding copyright ownership.
*/
package scala.tools.nsc
import java.net.URL
import util.Exceptional.rootCause
import scala.reflect.internal.util.ScalaClassLoader
import scala.util.control.NonFatal
trait CommonRunner {
/** Run a given object, specified by name, using a
* specified classpath and argument list.
*
* @throws java.lang.ClassNotFoundException
* @throws java.lang.NoSuchMethodException
* @throws java.lang.reflect.InvocationTargetException
*/
def run(urls: Seq[URL], objectName: String, arguments: Seq[String]): Unit = {
import scala.reflect.internal.util.RichClassLoader._
ScalaClassLoader.fromURLsParallelCapable(urls).run(objectName, arguments)
}
/** Catches any non-fatal exception thrown by run (in the case of InvocationTargetException,
* unwrapping it) and returns it in an Option.
*/
def runAndCatch(urls: Seq[URL], objectName: String, arguments: Seq[String]): Option[Throwable] =
try { run(urls, objectName, arguments) ; None }
catch { case NonFatal(e) => Some(rootCause(e)) }
}
/** An object that runs another object specified by name.
*
* @author Lex Spoon
*/
object ObjectRunner extends CommonRunner