Fix tricky case of functor signature subsumption

2 files changed, 9 insertions, 0 deletions

diff --git a/tests/subfunctor.ur b/tests/subfunctor.ur
new file mode 100644
index 00000000..3c2aa83f
--- /dev/null
+++ b/tests/subfunctor.ur
@@ -0,0 +1,6 @@
+functor F(M : sig con fs :: {Type} end) = struct
+    open M
+
+    functor G(M : sig val x : $(map sql_injectable_prim fs) end) = struct
+    end
+end
diff --git a/tests/subfunctor.urs b/tests/subfunctor.urs
new file mode 100644
index 00000000..db393d21
--- /dev/null
+++ b/tests/subfunctor.urs
@@ -0,0 +1,3 @@
+functor F(M : sig con fs :: {Type} end) : sig
+    functor G(M : sig val x : $(map sql_injectable_prim M.fs) end) : sig end
+end