Merge pull request #136 from dotty-staging/fix/systematic-prototypes

Fix/systematic prototypes

1 files changed, 17 insertions, 0 deletions

diff --git a/tests/pos/t2421c.scala b/tests/pos/t2421c.scala
new file mode 100644
index 000000000..bd24cacd7
--- /dev/null
+++ b/tests/pos/t2421c.scala
@@ -0,0 +1,17 @@
+object Test {
+  class A
+  class B
+  class C
+  class F[X]
+
+  def f(implicit aa: F[A]) = println(aa)
+
+  implicit def a : F[A] = new F[A]()
+
+  // generalised from t2421b to verify we check enough
+  class G[X]
+  implicit def g[X]: Test.G[X] = new G[X]()
+  implicit def b[X <: B](implicit mx: G[X]): Test.F[X] = new F[X]()
+
+  f
+}