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-rw-r--r--interp/constrintern.mli4
1 files changed, 4 insertions, 0 deletions
diff --git a/interp/constrintern.mli b/interp/constrintern.mli
index 0d4bc91f57..2e4d7479a9 100644
--- a/interp/constrintern.mli
+++ b/interp/constrintern.mli
@@ -189,3 +189,7 @@ val for_grammar : ('a -> 'b) -> 'a -> 'b
(** Placeholder for global option, should be moved to a parameter *)
val get_asymmetric_patterns : unit -> bool
+
+val check_duplicate : ?loc:Loc.t -> (qualid * constr_expr) list -> unit
+(** Check that a list of record field definitions doesn't contain
+ duplicates. *)