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-rw-r--r--pretyping/pretyping.ml11
1 files changed, 10 insertions, 1 deletions
diff --git a/pretyping/pretyping.ml b/pretyping/pretyping.ml
index 52f899587..49baf2ade 100644
--- a/pretyping/pretyping.ml
+++ b/pretyping/pretyping.ml
@@ -895,8 +895,17 @@ and pretype_type valcon env isevars lvar = function
if !compter then nbimpl:=!nbimpl+1;
(match valcon with
| Some v ->
+ let s =
+ let sigma = evars_of isevars in
+ let t = Retyping.get_type_of env sigma v in
+ match kind_of_term (whd_betadeltaiota env sigma t) with
+ | Sort s -> s
+ | Evar v when is_Type (existential_type sigma v) ->
+ define_evar_as_sort isevars v
+ | _ -> anomaly "Found a type constraint which is not a type"
+ in
{ utj_val = v;
- utj_type = Retyping.get_sort_of env (evars_of isevars) v }
+ utj_type = s }
| None ->
let s = new_Type_sort () in
{ utj_val = new_isevar isevars env loc (mkSort s);