Fix erasure of "def foo[T]: Unit", do not box the return type

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/run/unit_erasure.scala b/tests/run/unit_erasure.scala
new file mode 100644
index 000000000..51ccf0a16
--- /dev/null
+++ b/tests/run/unit_erasure.scala
@@ -0,0 +1,16 @@
+class A {
+  def foo1[T]: Unit = {}
+  def foo2[T](): Unit = {}
+  def foo3[T]()(): Unit = {}
+  def foo4: Unit = {}
+  def foo5(): Unit = {}
+  def foo6()(): Unit = {}
+}
+
+object Test {
+  def main(args: Array[String]): Unit = {
+    classOf[A].getMethods.toList.filter(_.getName.startsWith("foo")).foreach { m =>
+      assert(m.getGenericReturnType == Void.TYPE, s"Method does not return void: `${m}`")
+    }
+  }
+}
\ No newline at end of file