add dotty sanity check as suggested by @smarter

1 files changed, 4 insertions, 0 deletions

diff --git a/examples/dotty-example/src/Main.scala b/examples/dotty-example/src/Main.scala
index 411527a..1963b51 100644
--- a/examples/dotty-example/src/Main.scala
+++ b/examples/dotty-example/src/Main.scala
@@ -1,6 +1,10 @@
 object Main extends Foo("Hello Dotty - trait parameters, yay"){
   def main(args: Array[String]) = {  
     println(hello)
+
+    // Sanity check the classpath: this won't run if the dotty jar is not present.
+    val x: Int => Int = z => z
+    x(1)
   }
 }