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-rw-r--r--checker/subtyping.ml17
1 files changed, 10 insertions, 7 deletions
diff --git a/checker/subtyping.ml b/checker/subtyping.ml
index 6a051a5a9..a22af4e0f 100644
--- a/checker/subtyping.ml
+++ b/checker/subtyping.ml
@@ -218,16 +218,19 @@ let check_inductive env mp1 l info1 mib2 spec2 subst1 subst2=
(* we check that records and their field names are preserved. *)
let record_equal x y =
match x, y with
- | None, None -> true
- | Some None, Some None -> true
- | Some (Some (id1,p1,pb1)), Some (Some (id2,p2,pb2)) ->
- Id.equal id1 id2 &&
- Array.for_all2 Constant.UserOrd.equal p1 p2 &&
- Array.for_all2 eq_projection_body pb1 pb2
+ | NotRecord, NotRecord -> true
+ | FakeRecord, FakeRecord -> true
+ | PrimRecord info1, PrimRecord info2 ->
+ let check (id1, p1, pb1) (id2, p2, pb2) =
+ Id.equal id1 id2 &&
+ Array.for_all2 Constant.UserOrd.equal p1 p2 &&
+ Array.for_all2 eq_projection_body pb1 pb2
+ in
+ Array.equal check info1 info2
| _, _ -> false
in
check record_equal (fun mib -> mib.mind_record);
- if mib1.mind_record != None then begin
+ if mib1.mind_record != NotRecord then begin
let rec names_prod_letin t = match t with
| Prod(n,_,t) -> n::(names_prod_letin t)
| LetIn(n,_,_,t) -> n::(names_prod_letin t)