1 files changed, 34 insertions, 0 deletions
diff --git a/src/compiler/scala/tools/nsc/dependencies/References.scala b/src/compiler/scala/tools/nsc/dependencies/References.scala
new file mode 100644
index 0000000000..89fa71f6c1
--- /dev/null
+++ b/src/compiler/scala/tools/nsc/dependencies/References.scala
@@ -0,0 +1,34 @@
+package scala.tools.nsc.dependencies;
+import util.SourceFile;
+
+import collection._
+
+abstract class References extends SubComponent with Files {
+  import global._
+
+  val phaseName = "references analysis";
+
+  def newPhase(prev: Phase) = new ReferenceAnalysisPhase(prev)
+
+  /** Top level definitions per source file. */
+  val definitions: mutable.Map[String, List[Symbol]] = new mutable.HashMap
+
+  class ReferenceAnalysisPhase(prev: Phase) extends StdPhase(prev) {
+    def apply(unit: global.CompilationUnit) {
+      val buf = new mutable.ListBuffer[Symbol]
+      (new Traverser {
+        override def traverse(tree: Tree) {
+          tree match {
+            case cdef: ClassDef if !cdef.symbol.isModuleClass =>
+              buf += cdef.symbol.cloneSymbol
+            case _ =>
+              super.traverse(tree)
+          }
+        }
+      }).apply(unit.body)
+
+      definitions(unit.source.file.path) = buf.toList
+    }
+  }
+}
+