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package scala.tools.nsc.classpath
import scala.tools.nsc.util.ClassRepresentation
import scala.reflect.io.{AbstractFile, Path, PlainFile, VirtualDirectory}
import FileUtils._
import java.net.URL
import scala.reflect.internal.util.AbstractFileClassLoader
import scala.tools.nsc.util.ClassPath
case class VirtualDirectoryClassPath(dir: VirtualDirectory) extends ClassPath with DirectoryLookup[ClassFileEntryImpl] with NoSourcePaths {
type F = AbstractFile
protected def emptyFiles: Array[AbstractFile] = Array.empty
protected def getSubDir(packageDirName: String): Option[AbstractFile] =
Option(AbstractFileClassLoader.lookupPath(dir)(packageDirName.split('/'), directory = true))
protected def listChildren(dir: AbstractFile, filter: Option[AbstractFile => Boolean] = None): Array[F] = filter match {
case Some(f) => dir.iterator.filter(f).toArray
case _ => dir.toArray
}
def getName(f: AbstractFile): String = f.name
def toAbstractFile(f: AbstractFile): AbstractFile = f
def isPackage(f: AbstractFile): Boolean = f.isPackage
// mimic the behavior of the old nsc.util.DirectoryClassPath
def asURLs: Seq[URL] = Seq(new URL(dir.name))
def asClassPathStrings: Seq[String] = Seq(dir.path)
override def findClass(className: String): Option[ClassRepresentation] = findClassFile(className) map ClassFileEntryImpl
def findClassFile(className: String): Option[AbstractFile] = {
val relativePath = FileUtils.dirPath(className) + ".class"
Option(AbstractFileClassLoader.lookupPath(dir)(relativePath split '/', directory = false))
}
private[nsc] def classes(inPackage: String): Seq[ClassFileEntry] = files(inPackage)
protected def createFileEntry(file: AbstractFile): ClassFileEntryImpl = ClassFileEntryImpl(file)
protected def isMatchingFile(f: AbstractFile): Boolean = f.isClass
}
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