Tightened a condition to avoid a self-referenti...

Tightened a condition to avoid a self-referential pattern variable
crash. Closes #3392, no review.

1 files changed, 11 insertions, 0 deletions

diff --git a/test/files/neg/bug3392.scala b/test/files/neg/bug3392.scala
new file mode 100644
index 0000000000..655c2e84a3
--- /dev/null
+++ b/test/files/neg/bug3392.scala
@@ -0,0 +1,11 @@
+object Test {
+  case class A(a: Int) {
+    object Ex {
+      def unapply(i: Int): Option[Int] = Some(i)
+    }
+  }
+
+  A(42) match {
+    case x@A(x/*<-- refers to the pattern that includes this comment*/.Ex(42)) =>
+  }
+}