diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/term_typing.ml | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/term_typing.ml b/kernel/term_typing.ml index 2eba1eb2a7..c171ba2bbf 100644 --- a/kernel/term_typing.ml +++ b/kernel/term_typing.ml @@ -139,6 +139,12 @@ let inline_side_effects env body ctx side_eff = (* CAVEAT: we assure a proper order *) List.fold_left handle_sideff (body,ctx,[]) (uniq_seff_rev side_eff) +let rec is_nth_suffix n l suf = + if Int.equal n 0 then l == suf + else match l with + | [] -> false + | _ :: l -> is_nth_suffix (pred n) l suf + (* Given the list of signatures of side effects, checks if they match. * I.e. if they are ordered descendants of the current revstruct *) let check_signatures curmb sl = @@ -151,7 +157,7 @@ let check_signatures curmb sl = match sl with | None -> sl, None | Some n -> - if List.length mb >= how_many && CList.skipn how_many mb == curmb + if is_nth_suffix how_many mb curmb then Some (n + how_many), Some mb else None, None with CEphemeron.InvalidKey -> None, None in |