diff options
Diffstat (limited to 'library/heads.ml')
| -rw-r--r-- | library/heads.ml | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/library/heads.ml b/library/heads.ml index 5c153b06..73d2aa05 100644 --- a/library/heads.ml +++ b/library/heads.ml @@ -68,7 +68,10 @@ let kind_of_head env t = | None -> NotImmediatelyComputableHead) | Const (cst,_) -> (try on_subterm k l b (constant_head cst) - with Not_found -> assert false) + with Not_found -> + Errors.anomaly + Pp.(str "constant not found in kind_of_head: " ++ + str (Names.Constant.to_string cst))) | Construct _ | CoFix _ -> if b then NotImmediatelyComputableHead else ConstructorHead | Sort _ | Ind _ | Prod _ -> RigidHead RigidType |