1 files changed, 18 insertions, 0 deletions
diff --git a/library-aux/src/main/scala/scala/runtime/BoxedUnit.scala b/library-aux/src/main/scala/scala/runtime/BoxedUnit.scala
new file mode 100644
index 0000000..b6ac773
--- /dev/null
+++ b/library-aux/src/main/scala/scala/runtime/BoxedUnit.scala
@@ -0,0 +1,18 @@
+package scala.runtime
+
+/* This is a hijacked class. Its only instance is the value 'undefined'.
+ * Constructors are not emitted.
+ */
+class BoxedUnit private {
+  @inline override def equals(that: Any): Boolean =
+    this eq that.asInstanceOf[AnyRef]
+
+  @inline override def hashCode(): Int = 0
+
+  @inline override def toString(): String = "undefined"
+}
+
+object BoxedUnit {
+  val UNIT: BoxedUnit = sys.error("stub")
+  val TYPE: Class[Void] = sys.error("stub")
+}