(* 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.
 * 
 * For details, see the HELM World-Wide-Web page,
 * http://cs.unibo.it/helm/.
 *)

(*  AUTOR: Ferruccio Guidi <fguidi@cs.unibo.it>
 *)

exception NotAnInductiveDefinition

let get_constraints = function
   | Cic.MutInd (uri, t, _) -> 
      let uri = MQueryUtil.string_of_uriref (uri, [t]) in
      let constr_obj =
       [(`InHypothesis, uri); (`MainHypothesis (Some 0), uri)]
      in
      let constr_rel = [`MainConclusion None] in
      let constr_sort = [(`MainHypothesis (Some 1), MQGTypes.Prop)] in
      (constr_obj, constr_rel, constr_sort)
   | _                      -> raise NotAnInductiveDefinition