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-rw-r--r--kernel/mod_typing.ml16
1 files changed, 12 insertions, 4 deletions
diff --git a/kernel/mod_typing.ml b/kernel/mod_typing.ml
index 8fee8481d7..33eae08213 100644
--- a/kernel/mod_typing.ml
+++ b/kernel/mod_typing.ml
@@ -115,9 +115,11 @@ and merge_with env mtb with_decl =
let _ = subst_modtype (map_msid msid (MPself msid)) mtb in
()
with
- Assert_failure _ -> error_circular_with_module id
+ Failure _ -> error_circular_with_module id
end;
- let cst = check_subtypes env' mtb old.msb_modtype in
+ let cst =
+ try check_subtypes env' mtb old.msb_modtype
+ with Failure _ -> error_with_incorrect (label_of_id id) in
let equiv =
match old.msb_equiv with
| None -> Some mp
@@ -213,7 +215,10 @@ and translate_module env is_definition me =
| None -> mtb1, None, Constraint.empty
| Some mte ->
let mtb2 = translate_modtype env mte in
- mtb2, Some mtb2, check_subtypes env mtb1 mtb2
+ let cst =
+ try check_subtypes env mtb1 mtb2
+ with Failure _ -> error "not subtype" in
+ mtb2, Some mtb2, cst
in
{ mod_type = mtb;
mod_user_type = mod_user_type;
@@ -237,7 +242,10 @@ and translate_mexpr env mexpr = match mexpr with
let ftb = scrape_modtype env ftb in
let farg_id, farg_b, fbody_b = destr_functor ftb in
let meb,mtb = translate_mexpr env mexpr in
- let cst = check_subtypes env mtb farg_b in
+ let cst =
+ try check_subtypes env mtb farg_b
+ with Failure _ ->
+ error "" in
let mp =
try
path_of_mexpr mexpr