1 files changed, 21 insertions, 0 deletions
diff --git a/tests/pos/pets.scala b/tests/pos/pets.scala
new file mode 100644
index 000000000..e1d5df44e
--- /dev/null
+++ b/tests/pos/pets.scala
@@ -0,0 +1,21 @@
+// Representing the current type
+trait Pet {
+  type This <: Pet
+  def name: String
+  def renamed(newName: String): This
+}
+
+case class Fish(name: String, age: Int) extends Pet {
+  type This = Fish
+  def renamed(newName: String): Fish = copy(name = newName)
+}
+
+case class Kitty(name: String, age: Int) extends Pet {
+  type This = Kitty
+  def renamed(newName: String): Kitty = copy(name = newName)
+}
+
+object Test {
+  def esquire[A <: Pet](a: A): a.This = a.renamed(a.name + ", Esq.")
+  val f: Fish = esquire(new Fish("bob", 22))
+}