(* Copyright (C) 2000, HELM Team.
 * 
 * This file is part of HELM, an Hypertextual, Electronic
 * Library of Mathematics, developed at the Computer Science
 * Department, University of Bologna, Italy.
 * 
 * HELM is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * 
 * HELM is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with HELM; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA  02111-1307, USA.
 * 
 * http://cs.unibo.it/helm/.
 *)

(* These are the only exceptions that will be raised *)
exception TypeCheckerFailure of string Lazy.t
exception AssertFailure of string Lazy.t

(* typechecks the object, raising an exception if illtyped *)
val typecheck_obj : NCic.obj -> unit

val typeof: 
  subst:NCic.substitution -> metasenv:NCic.metasenv -> 
  NCic.context -> NCic.term -> 
    NCic.term

val set_logger: 
  ([ `Start_type_checking of NUri.uri 
   | `Type_checking_completed of NUri.uri ] -> unit) -> unit