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-rw-r--r--src/Invariants.ml36
1 files changed, 24 insertions, 12 deletions
diff --git a/src/Invariants.ml b/src/Invariants.ml
index 2cbae606..9390436c 100644
--- a/src/Invariants.ml
+++ b/src/Invariants.ml
@@ -492,18 +492,30 @@ let check_typing_invariant (ctx : C.eval_ctx) : unit =
| V.AIgnoredMutBorrow av, T.Mut -> assert (av.V.ty = ref_ty)
| V.AProjSharedBorrow _, T.Shared -> ()
| _ -> failwith "Inconsistent context")
- | V.ALoan lc, ty -> raise Unimplemented
- (* (
- match lc with
- | V.SharedLoan (_, sv) -> assert (sv.V.ty = ty)
- | V.MutLoan bid -> (
- (* Lookup the borrowed value to check it has the proper type *)
- let glc = lookup_borrow ek_all bid ctx in
- match glc with
- | Concrete (V.MutBorrow (_, bv)) -> assert (bv.V.ty = ty)
- | Abstract (V.AMutBorrow (_, sv)) ->
- assert (Subst.erase_regions sv.V.ty = ty)
- | _ -> failwith "Inconsistent context"))*)
+ | V.ALoan lc, aty -> (
+ match lc with
+ | V.AMutLoan (bid, child_av) | V.AIgnoredMutLoan (bid, child_av)
+ -> (
+ assert (child_av.V.ty = aty);
+ (* Lookup the borrowed value to check it has the proper type *)
+ let glc = lookup_borrow ek_all bid ctx in
+ match glc with
+ | Concrete (V.MutBorrow (_, bv)) ->
+ assert (bv.V.ty = Subst.erase_regions aty)
+ | Abstract (V.AMutBorrow (_, sv)) ->
+ assert (
+ Subst.erase_regions sv.V.ty = Subst.erase_regions aty)
+ | _ -> failwith "Inconsistent context")
+ | V.ASharedLoan (_, sv, child_av) | V.AEndedSharedLoan (sv, child_av)
+ ->
+ let ty = Subst.erase_regions aty in
+ assert (sv.V.ty = ty);
+ assert (child_av.V.ty = aty)
+ | V.AEndedMutLoan { given_back; child }
+ | V.AEndedIgnoredMutLoan { given_back; child } ->
+ assert (given_back.V.ty = aty);
+ assert (child.V.ty = aty)
+ | V.AIgnoredSharedLoan child_av -> assert (child_av.V.ty = aty))
| V.ASymbolic aproj, ty ->
let ty1 = Subst.erase_regions ty in
let ty2 =