diff options
| -rw-r--r-- | toplevel/class.ml | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/toplevel/class.ml b/toplevel/class.ml index b6824dac78..37ef4eb925 100644 --- a/toplevel/class.ml +++ b/toplevel/class.ml @@ -265,7 +265,7 @@ let build_id_coercion idf_opt ids = (Typing.type_of env Evd.empty val_f) typ_f with _ -> error ("cannot be defined as coercion - "^ - "may be a bad number of arguments") + "maybe a bad number of arguments") in let idf = match idf_opt with @@ -274,8 +274,10 @@ let build_id_coercion idf_opt ids = id_of_string ("Id_"^(string_of_id ids)^"_"^ (string_of_class (fst (constructor_at_head t)))) in - let constr_entry = - { const_entry_body = val_f; const_entry_type = None } in + let constr_entry = (* Cast is necessary to express [val_f] is identity *) + + { const_entry_body = mkCast (val_f, typ_f); + const_entry_type = None } in declare_constant idf (ConstantEntry constr_entry,NeverDischarge,false); idf |