Neg tests: remove xerror parameter from tests (compute based on // error)

1 files changed, 29 insertions, 0 deletions

diff --git a/tests/pos/t1164.scala b/tests/pos/t1164.scala
new file mode 100644
index 000000000..7775b5e86
--- /dev/null
+++ b/tests/pos/t1164.scala
@@ -0,0 +1,29 @@
+object test {
+
+        class Foo[a](val arg : a)
+
+        object Foo  {
+        def apply [a](arg : a, right :a) = new Foo[a](arg)
+        def unapply [a](m : Foo[a]) = Some (m.arg)
+        }
+
+    def matchAndGetArgFromFoo[a]( e:Foo[a]):a = {e match { case Foo(x) => x }}
+  // Unapply node here will have type argument [a] instantiated to scala.Nothing:
+  // UnApply(TypeApply(Select(Ident(Foo),unapply),List(TypeTree[TypeVar(PolyParam(a) -> TypeRef(ThisType(TypeRef(NoPrefix,scala)),Nothing))])),List(),List(Bind(x,Ident(_))))
+  // but the type of the UnApply node itself is correct: RefinedType(TypeRef(ThisType(TypeRef(ThisType(TypeRef(NoPrefix,<empty>)),test$)),Foo), test$$Foo$$a, TypeAlias(TypeRef(NoPrefix,a)))
+  //
+
+
+    //  Try the same thing as above but use function as argument to Bar
+    // constructor
+
+    type FunIntToA [a] = (Int) => a
+        class Bar[a] (var f: FunIntToA[a])
+
+    object Bar {
+        def apply[a](f: FunIntToA[a]) = new Bar[a](f)
+        def unapply[a](m: Bar[a]) = Some (m.f)
+    }
+
+    def matchAndGetFunFromBar[a](b:Bar[a]) : FunIntToA[a] = { b match { case Bar(x) => x}}
+}