closes #2421: more complete fix, now also check...

closes #2421: more complete fix, now also check validity of inferred
type arguments for expressions inferred for implicit values review by
odersky

1 files changed, 19 insertions, 0 deletions

diff --git a/test/files/pos/t2421b.scala b/test/files/pos/t2421b.scala
new file mode 100644
index 0000000000..0df3461662
--- /dev/null
+++ b/test/files/pos/t2421b.scala
@@ -0,0 +1,19 @@
+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]()
+  implicit def b[X <: B] = new F[X]()
+
+  f
+}
+/* bug:
+error: ambiguous implicit values:
+ both method b in object Test1 of type [X <: Test1.B]Test1.F[X]
+ and method a in object Test1 of type => Test1.F[Test1.A]
+ match expected type Test1.F[Test1.A]
+*/