1 files changed, 183 insertions, 0 deletions
diff --git a/tests/neg/customArgs/i1050.scala b/tests/neg/customArgs/i1050.scala
new file mode 100644
index 000000000..1ade1366a
--- /dev/null
+++ b/tests/neg/customArgs/i1050.scala
@@ -0,0 +1,183 @@
+// i1050 checks failing at posttyper
+trait A { type L <: Nothing }
+trait B { type L >: Any}
+object Test {
+  lazy val x: A & B = ???
+  val y: x.L = 1    // error: underlying conflicting bounds
+  val z: String = y
+}
+object Test50 {
+  trait A {
+    type X = String
+  }
+  trait B {
+    type X = Int
+  }
+  lazy val o: A & B = ???
+
+  def xToString(x: o.X): String = x // error: underlying conflicting bounds
+
+  def intToString(i: Int): String = xToString(i)
+
+  def main(args: Array[String]) = {
+    val s: String = intToString(1)
+  }
+}
+object Test2 {
+
+  trait C { type A }
+
+  type T = C { type A = Any }
+  type U = C { type A = Nothing }
+  type X = T & U
+
+  def main(args: Array[String]) = {
+    val y: X#A = 1 // error: conflicting bounds
+    val z: String = y
+  }
+}
+object Tiark1 {
+    trait A { type L <: Nothing }
+    trait B { type L >: Any}
+    trait U {
+      lazy val p: B
+      def brand(x: Any): p.L = x // error: nonfinal lazy
+    }
+    trait V extends U {
+      lazy val p: A & B = ???
+    }
+    val v = new V {}
+    v.brand("boom!")
+}
+object Tiark2 {
+    trait A { type L <: Nothing }
+    trait B { type L >: Any}
+    trait U {
+      type X <: B
+      lazy val p: X
+      def brand(x: Any): p.L = x // error: nonfinal lazy
+    }
+    trait V extends U {
+      type X = B & A
+      lazy val p: X = ???
+    }
+    val v = new V {}
+    v.brand("boom!"): Nothing
+}
+object Tiark3 {
+    trait A { type L <: Nothing }
+    trait B { type L >: Any}
+    trait U {
+      type X <: B
+      def p2: X
+      final lazy val p: X = p2
+      def brand(x: Any): p.L = x // error: underlying not concrete
+    }
+    trait V extends U {
+      type X = B with A
+      def p2: X = ???
+    }
+    val v = new V {}
+    v.brand("boom!"): Nothing
+}
+object Tiark6 {
+    trait B { type L >: Any }
+    trait A { type L <: Nothing }
+    trait U {
+      trait X {
+        val q: A & B = ???
+      }
+      final lazy val p: X = ???
+      def brand(x: Any): p.q.L = x // error: conflicting bounds
+    }
+    val v = new U {}
+    v.brand("boom!"): Nothing
+}
+
+object Indirect {
+    trait B { type L >: Any }
+    trait A { type L <: Nothing }
+    trait U {
+      trait X {
+        val q: A & B = ???
+        type M = q.L
+      }
+      final lazy val p: X = ???
+      def brand(x: Any): p.M = x // error: conflicting bounds
+    }
+  def main(args: Array[String]): Unit = {
+    val v = new U {}
+    v.brand("boom!"): Nothing
+  }
+}
+object Indirect2 {
+    trait B { type L >: Any }
+    trait A { type L <: Nothing }
+    trait U {
+      trait Y {
+        val r: A & B = ???
+      }
+      trait X {
+        val q: Y = ???
+        type M = q.r.L
+      }
+      final lazy val p: X = ???
+      def brand(x: Any): p.M = x // error: conflicting bounds
+    }
+  def main(args: Array[String]): Unit = {
+    val v = new U {}
+    v.brand("boom!"): Nothing
+  }
+}
+object Rec1 {
+    trait B { type L >: Any }
+    trait A { type L <: Nothing }
+    trait U {
+      trait Y {
+        type L = Int
+        val r: Y
+      }
+      trait X {
+        val q: Y = ???
+        type M = q.r.L  // if we are not careful we get a stackoverflow here
+      }
+    }
+}
+object Rec2 {
+    trait B { type L >: Any }
+    trait A { type L <: Nothing }
+    trait U {
+      trait Y {
+        val r: A & B & Y
+      }
+      trait X {
+        val q: Y = ???
+        type M = q.r.L
+      }
+      final lazy val p: X = ???
+      def brand(x: Any): p.M = x // error: conflicting bounds
+    }
+  def main(args: Array[String]): Unit = {
+    val v = new U {}
+    v.brand("boom!"): Nothing
+  }
+}
+object Indirect3 {
+    trait B { type L >: Any }
+    trait A { type L <: Nothing }
+    trait U {
+      trait Y {
+        val r: Y & A & B = ???
+      }
+      trait X {
+        val q: Y = ???
+        type M = q.r.L
+      }
+      final lazy val p: X = ???
+      def brand(x: Any): p.M = x // error: conflicting bounds
+    }
+  def main(args: Array[String]): Unit = {
+    val v = new U {}
+    v.brand("boom!"): Nothing
+  }
+}