2 files changed, 54 insertions, 0 deletions
diff --git a/tests/functorMadness.ur b/tests/functorMadness.ur
new file mode 100644
index 00000000..c7ddeaca
--- /dev/null
+++ b/tests/functorMadness.ur
@@ -0,0 +1,18 @@
+functor F(M : sig end) = struct
+    fun f () = f ()
+
+    functor G(M : sig end) = struct
+        fun g () = f ()
+    end
+end
+
+structure M1 = F(struct end)
+structure M2 = F(struct end)
+
+structure N1 = M1.G(struct end)
+structure N2 = M2.G(struct end)
+
+fun main () : transaction page =
+    return (N1.g ());
+    return (N2.g ());
+    return <xml/>
diff --git a/tests/functorMania.ur b/tests/functorMania.ur
new file mode 100644
index 00000000..c11ff473
--- /dev/null
+++ b/tests/functorMania.ur
@@ -0,0 +1,36 @@
+functor F1(M : sig type t end) = struct
+    type t = M.t
+    fun g () : M.t = g ()
+    fun f () = g ()
+end
+functor F2(M : sig type t end) = F1(M)
+functor F3(M : sig type t end) = F2(M)
+
+functor F4(M : sig end) = F1(struct type t = int end)
+functor F5(M : sig end) = F2(struct type t = int end)
+functor F6(M : sig end) = F3(struct type t = int end)
+
+functor F7(M : sig end) = F1(struct type t = string end)
+functor F8(M : sig end) = F2(struct type t = string end)
+functor F9(M : sig end) = F3(struct type t = string end)
+
+structure M1 = F1(struct type t = string end)
+structure M2 = F2(struct type t = string end)
+structure M3 = F3(struct type t = string end)
+
+structure M4 = F4(struct  end)
+structure M5 = F5(struct end)
+structure M6 = F6(struct end)
+
+structure M7 = F7(struct end)
+structure M8 = F8(struct end)
+structure M9 = F9(struct end)
+
+fun loop x : unit = loop (M1.f (), M2.f (), M3.f (),
+                          M4.f (), M5.f (), M6.f (),
+                          M7.f (), M8.f (), M9.f ())
+
+fun main () : transaction page =
+    x <- error <xml/>;
+    u <- return (loop x);
+    return <xml/>