Merge pull request #694 from dotty-staging/fix/dependent-methods

Fix/dependent methods

2 files changed, 20 insertions, 1 deletions

diff --git a/tests/pending/pos/depmet_implicit_chaining_zw.scala b/tests/pos/depmet_implicit_chaining_zw.scala
index a9da1e976..f0e8a373b 100644
--- a/tests/pending/pos/depmet_implicit_chaining_zw.scala
+++ b/tests/pos/depmet_implicit_chaining_zw.scala
@@ -22,7 +22,11 @@ object ZipWith {
   // thus, I present ?: implicitly on steroids!
   def ?[T <: AnyRef](implicit w: T): w.type = w
 
+  type _0 = Zero
+  type _1 = Succ[Zero]
   type _2 = Succ[Succ[Zero]]
-  val zw = ?[ZipWith[_2, Int => String => Boolean]].x // : Stream[Int] => Stream[String] => Stream[Boolean]
+  val zw = ?[ZipWith[_2, Int => String => Boolean]](
+    SuccZipWith[_1, Int, String => Boolean](
+      SuccZipWith[_0, String, Boolean])).x
   // val zw = implicitly[ZipWith[Succ[Succ[Zero]], Int => String => Boolean]{type T = Stream[Int] => Stream[String] => Stream[Boolean]}].x
 }
diff --git a/tests/pos/implicitNums.scala b/tests/pos/implicitNums.scala
new file mode 100644
index 000000000..48c5302f7
--- /dev/null
+++ b/tests/pos/implicitNums.scala
@@ -0,0 +1,15 @@
+object Test {
+
+  trait Number
+  trait Zero extends Number
+  trait Succ[N <: Number](n: N) extends Number
+
+  implicit def succ[N <: Number](implicit n: N): Succ[N] = new Succ[N](n) {}
+  implicit def zero: Zero = new Zero{}
+
+  implicitly[Zero]
+  implicitly[Succ[Zero]]
+  implicitly[Succ[Succ[Zero]]]
+  implicitly[Succ[Succ[Succ[Zero]]]]
+
+}