diff options
Diffstat (limited to 'plugins/extraction/haskell.ml')
| -rw-r--r-- | plugins/extraction/haskell.ml | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/plugins/extraction/haskell.ml b/plugins/extraction/haskell.ml index 3925a2a2f4..59dd5596e7 100644 --- a/plugins/extraction/haskell.ml +++ b/plugins/extraction/haskell.ml @@ -86,7 +86,9 @@ let pp_global k r = let rec pp_type par vl t = let rec pp_rec par = function | Tmeta _ | Tvar' _ -> assert false - | Tvar i -> (try pr_id (List.nth vl (pred i)) with _ -> (str "a" ++ int i)) + | Tvar i -> + (try pr_id (List.nth vl (pred i)) + with Failure _ -> (str "a" ++ int i)) | Tglob (r,[]) -> pp_global Type r | Tglob (IndRef(kn,0),l) when not (keep_singleton ()) && kn = mk_ind "Coq.Init.Specif" "sig" -> |