diff options
Diffstat (limited to 'plugins/ssr/ssrequality.ml')
| -rw-r--r-- | plugins/ssr/ssrequality.ml | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/plugins/ssr/ssrequality.ml b/plugins/ssr/ssrequality.ml index a31022919..f929e9430 100644 --- a/plugins/ssr/ssrequality.ml +++ b/plugins/ssr/ssrequality.ml @@ -287,7 +287,10 @@ let foldtac occ rdx ft gl = (fun env c _ h -> try find_T env c h ~k:(fun env t _ _ -> t) with NoMatch ->c), (fun () -> try end_T () with NoMatch -> fake_pmatcher_end ()) | _ -> - (fun env c _ h -> try let sigma = unify_HO env sigma (EConstr.of_constr c) (EConstr.of_constr t) in EConstr.to_constr sigma (EConstr.of_constr t) + (fun env c _ h -> + try + let sigma = unify_HO env sigma (EConstr.of_constr c) (EConstr.of_constr t) in + EConstr.to_constr ~abort_on_undefined_evars:false sigma (EConstr.of_constr t) with _ -> errorstrm Pp.(str "fold pattern " ++ pr_constr_pat t ++ spc () ++ str "does not match redex " ++ pr_constr_pat c)), fake_pmatcher_end in |