1 (* Copyright (C) 2002, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://cs.unibo.it/helm/.
28 let fake_constructor_tac ~n (proof, goal) =
30 let module R = CicReduction in
31 let (_,metasenv,_subst,_,_, _) = proof in
32 let metano,context,ty = CicUtil.lookup_meta goal metasenv in
33 match (R.whd context ty) with
34 (C.MutInd (uri, typeno, exp_named_subst))
35 | (C.Appl ((C.MutInd (uri, typeno, exp_named_subst))::_)) ->
36 ProofEngineTypes.apply_tactic (
37 PrimitiveTactics.apply_tac
38 ~term: (C.MutConstruct (uri, typeno, n, exp_named_subst)))
40 | _ -> raise (ProofEngineTypes.Fail (lazy "Constructor: failed"))
43 let constructor_tac ~n = ProofEngineTypes.mk_tactic (fake_constructor_tac ~n)
45 let exists_tac = ProofEngineTypes.mk_tactic (fake_constructor_tac ~n:1) ;;
46 let split_tac = ProofEngineTypes.mk_tactic (fake_constructor_tac ~n:1) ;;
47 let left_tac = ProofEngineTypes.mk_tactic (fake_constructor_tac ~n:1) ;;
48 let right_tac = ProofEngineTypes.mk_tactic (fake_constructor_tac ~n:2) ;;