diff options
Diffstat (limited to 'library/heads.ml')
| -rw-r--r-- | library/heads.ml | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/library/heads.ml b/library/heads.ml index 8fda452c1..3f7c8877e 100644 --- a/library/heads.ml +++ b/library/heads.ml @@ -66,8 +66,12 @@ let _ = Summary.unfreeze_function = unfreeze; Summary.init_function = init } -let variable_head id = Evalrefmap.find (EvalVarRef id) !head_map -let constant_head cst = Evalrefmap.find (EvalConstRef cst) !head_map +let variable_head id = + try Evalrefmap.find (EvalVarRef id) !head_map + with Not_found -> assert false +let constant_head cst = + try Evalrefmap.find (EvalConstRef cst) !head_map + with Not_found -> assert false let kind_of_head env t = let rec aux k l t b = match kind_of_term (Reduction.whd_betaiotazeta t) with |