diff options
Diffstat (limited to 'plugins/ltac/rewrite.ml')
| -rw-r--r-- | plugins/ltac/rewrite.ml | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/plugins/ltac/rewrite.ml b/plugins/ltac/rewrite.ml index e8c9f4eba..51729f4c6 100644 --- a/plugins/ltac/rewrite.ml +++ b/plugins/ltac/rewrite.ml @@ -241,7 +241,7 @@ end) = struct let liftarg = mkLambda (na, ty, arg) in let evars, arg' = app_poly env evars forall_relation [| ty ; pred ; liftarg |] in if Option.is_empty obj then evars, mkProd(na, ty, b), arg', (ty, None) :: cstrs - else error "build_signature: no constraint can apply on a dependent argument" + else user_err Pp.(str "build_signature: no constraint can apply on a dependent argument") | _, obj :: _ -> anomaly ~label:"build_signature" (Pp.str "not enough products") | _, [] -> (match finalcstr with @@ -478,7 +478,7 @@ type hypinfo = { let get_symmetric_proof b = if b then PropGlobal.get_symmetric_proof else TypeGlobal.get_symmetric_proof -let error_no_relation () = error "Cannot find a relation to rewrite." +let error_no_relation () = user_err Pp.(str "Cannot find a relation to rewrite.") let rec decompose_app_rel env evd t = (** Head normalize for compatibility with the old meta mechanism *) @@ -531,7 +531,7 @@ let decompose_applied_relation env sigma (c,l) = let ctx,t' = Reductionops.splay_prod env sigma ctype in (* Search for underlying eq *) match find_rel (it_mkProd_or_LetIn t' (List.map (fun (n,t) -> LocalAssum (n, t)) ctx)) with | Some c -> c - | None -> error "Cannot find an homogeneous relation to rewrite." + | None -> user_err Pp.(str "Cannot find an homogeneous relation to rewrite.") let rewrite_db = "rewrite" @@ -837,7 +837,7 @@ let resolve_morphism env avoid oldt m ?(fnewt=fun x -> x) args args' (b,cstr) ev sigargs, r.rew_to :: typeargs') | None -> if not (Option.is_empty y) then - error "Cannot rewrite inside dependent arguments of a function"; + user_err Pp.(str "Cannot rewrite inside dependent arguments of a function"); x :: acc, x :: subst, evars, sigargs, x :: typeargs') ([], [], evars, sigargs, []) args args' in @@ -1425,7 +1425,7 @@ module Strategies = let unfolded = try Tacred.try_red_product env sigma c with e when CErrors.noncritical e -> - error "fold: the term is not unfoldable !" + user_err Pp.(str "fold: the term is not unfoldable !") in try let sigma = Unification.w_unify env sigma CONV ~flags:(Unification.elim_flags ()) unfolded t in @@ -2204,7 +2204,7 @@ let setoid_symmetry_in id = let rec split_last_two = function | [c1;c2] -> [],(c1, c2) | x::y::z -> let l,res = split_last_two (y::z) in x::l, res - | _ -> error "Cannot find an equivalence relation to rewrite." + | _ -> user_err Pp.(str "Cannot find an equivalence relation to rewrite.") in let others,(c1,c2) = split_last_two args in let he,c1,c2 = mkApp (equiv, Array.of_list others),c1,c2 in |