Performance

Author: nicolasstucki

compiler/src/dotty/tools/dotc/classpath/VirtualDirectoryClassPath.scala

@@ -41,12 +41,11 @@ case class VirtualDirectoryClassPath(dir: VirtualDirectory) extends ClassPath wi
   override def findClass(className: String): Option[ClassRepresentation] = findClassFile(className) map ClassFileEntryImpl.apply
 
   def findClassFile(className: String): Option[AbstractFile] = {
-    val pathSeq = FileUtils.dirPath(className).split(java.io.File.separator).toVector
-    val parentSeq = pathSeq.init
-    val tastyPath = parentSeq :+ (pathSeq.last + ".tasty")
-    val classPath = parentSeq :+ (pathSeq.last + ".class")
-    Option(lookupPath(dir)(tastyPath, directory = false))
-      .orElse(Option(lookupPath(dir)(classPath, directory = false)))
+    val pathSeq = FileUtils.dirPath(className).split(java.io.File.separator)
+    val parentDir = lookupPath(dir)(pathSeq.init.toSeq, directory = true)
+    val name = pathSeq.last
+    Option(lookupPath(parentDir)(name + ".tasty" :: Nil, directory = false))
+      .orElse(Option(lookupPath(parentDir)(name + ".class" :: Nil, directory = false)))
   }
 
   private[dotty] def classes(inPackage: PackageName): Seq[ClassFileEntry] = files(inPackage)