diff options
Diffstat (limited to 'library/heads.ml')
| -rw-r--r-- | library/heads.ml | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/library/heads.ml b/library/heads.ml index 52f98e6d..8244761d 100644 --- a/library/heads.ml +++ b/library/heads.ml @@ -1,12 +1,12 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2011 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) (************************************************************************) -(* $Id: heads.ml 13323 2010-07-24 15:57:30Z herbelin $ *) +(* $Id: heads.ml 14641 2011-11-06 11:59:10Z herbelin $ *) open Pp open Util @@ -82,7 +82,9 @@ let kind_of_head env t = match pi2 (lookup_named id env) with | Some c -> aux k l c b | None -> NotImmediatelyComputableHead) - | Const cst -> on_subterm k l b (constant_head cst) + | Const cst -> + (try on_subterm k l b (constant_head cst) + with Not_found -> assert false) | Construct _ | CoFix _ -> if b then NotImmediatelyComputableHead else ConstructorHead | Sort _ | Ind _ | Prod _ -> RigidHead RigidType |