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-rw-r--r--pretyping/typeclasses.ml4
1 files changed, 4 insertions, 0 deletions
diff --git a/pretyping/typeclasses.ml b/pretyping/typeclasses.ml
index c8a99a315..5447c2145 100644
--- a/pretyping/typeclasses.ml
+++ b/pretyping/typeclasses.ml
@@ -37,6 +37,10 @@ let register_set_typeclass_transparency =
(:=) set_typeclass_transparency_ref
let set_typeclass_transparency gr local c = !set_typeclass_transparency_ref gr local c
+let classes_transparent_state_ref = ref (fun () -> assert false)
+let register_classes_transparent_state = (:=) classes_transparent_state_ref
+let classes_transparent_state () = !classes_transparent_state_ref ()
+
type rels = constr list
(* This module defines type-classes *)