1 (* Copyright (C) 2000, 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/.
32 type implicit_annotation = [ `Closed | `Type | `Hole | `Term ]
34 type name = Name of string | Anonymous
36 type local_context = int * (term list) option (* shift (0 -> no shift),
37 subst (None means id) *)
40 | Rel of int (* DeBruijn index, 1 based *)
41 | Meta of int * string option * local_context
42 | Appl of term list (* arguments *)
43 | Prod of name * term * term (* binder, source, target *)
44 | Lambda of name * term * term (* binder, source, target *)
45 | LetIn of name * term * term * term (* binder, type, term, body *)
46 (* Cast \def degenerate LetIn *)
47 | Const of NReference.reference (* reference contains indtypeno/constrno *)
48 | Sort of sort (* sort *)
49 | Implicit of implicit_annotation (* ... *)
50 | Match of NReference.reference * (* ind. reference, *)
51 term * term * (* outtype, ind. term *)
52 term list (* patterns *)
55 | Constant of term option * term
56 | FixpointDefinition of ...
57 | InductiveDefinition of inductiveType list (* inductive types, *)
60 string * bool * term * (* typename, inductive, arity *)
61 constructor list (* constructors *)
64 string * term (* id, type *)