diff options
| author | Gaëtan Gilbert | 2020-03-31 15:21:40 +0200 |
|---|---|---|
| committer | Gaëtan Gilbert | 2020-04-13 21:55:34 +0200 |
| commit | ee64a71f5e071b7fa0495847388c19d83bc5c9bd (patch) | |
| tree | 17c919a21a48e65c4e660659c407c63120cc6abc | |
| parent | f2cdb87232e3b04cbd1e199833253fb3e38156f8 (diff) | |
Close #11935: section variables do not have universe instances.
| -rw-r--r-- | interp/constrintern.ml | 2 | ||||
| -rw-r--r-- | pretyping/pretyping.ml | 10 | ||||
| -rw-r--r-- | test-suite/bugs/closed/bug_11935.v | 6 |
3 files changed, 16 insertions, 2 deletions
diff --git a/interp/constrintern.ml b/interp/constrintern.ml index 905d9f1e5b..45255609e0 100644 --- a/interp/constrintern.ml +++ b/interp/constrintern.ml @@ -989,7 +989,7 @@ let string_of_ty = function | Variable -> "var" let gvar (loc, id) us = match us with -| None -> DAst.make ?loc @@ GVar id +| None | Some [] -> DAst.make ?loc @@ GVar id | Some _ -> user_err ?loc (str "Variable " ++ Id.print id ++ str " cannot have a universe instance") diff --git a/pretyping/pretyping.ml b/pretyping/pretyping.ml index 015c26531a..940150b15a 100644 --- a/pretyping/pretyping.ml +++ b/pretyping/pretyping.ml @@ -438,7 +438,15 @@ let pretype_ref ?loc sigma env ref us = match ref with | GlobRef.VarRef id -> (* Section variable *) - (try sigma, make_judge (mkVar id) (NamedDecl.get_type (lookup_named id !!env)) + (try + let ty = NamedDecl.get_type (lookup_named id !!env) in + (match us with + | None | Some [] -> () + | Some (_ :: _) -> + CErrors.user_err ?loc + Pp.(str "Section variables are not polymorphic:" ++ spc () + ++ str "universe instance should have length 0.")); + sigma, make_judge (mkVar id) ty with Not_found -> (* This may happen if env is a goal env and section variables have been cleared - section variables should be different from goal diff --git a/test-suite/bugs/closed/bug_11935.v b/test-suite/bugs/closed/bug_11935.v new file mode 100644 index 0000000000..ad5ffc68b5 --- /dev/null +++ b/test-suite/bugs/closed/bug_11935.v @@ -0,0 +1,6 @@ +Section S. + Variable A : Prop. + + Fail Check A@{Type}. + Check A@{}. +End S. |