-(* 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/.
- *)
+(*
+ ||M|| This file is part of HELM, an Hypertextual, Electronic
+ ||A|| Library of Mathematics, developed at the Computer Science
+ ||T|| Department, University of Bologna, Italy.
+ ||I||
+ ||T|| HELM is free software; you can redistribute it and/or
+ ||A|| modify it under the terms of the GNU General Public License
+ \ / version 2 or (at your option) any later version.
+ \ / This software is distributed as is, NO WARRANTY.
+ V_______________________________________________________________ *)
+
+(* $Id: nCicReduction.ml 8250 2008-03-25 17:56:20Z tassi $ *)
(********************************* TERMS ************************************)
-type sort = Prop | Set | Type of int | CProp
+type sort = Prop | Type of int | CProp
type implicit_annotation = [ `Closed | `Type | `Hole | `Term ]
-type local_context = int * (term list) option (* shift (0 -> no shift),
- subst (None means id) *)
+type lc_kind = Irl of int | Ctx of term list
+
+and local_context = int * lc_kind (* shift (0 -> no shift),
+ subst (None means id) *)
and term =
| Rel of int (* DeBruijn index, 1 based *)
| Meta of int * local_context
type metasenv = conjecture list
-type substitution = (int * (string option * context * term * term)) list
+type subst_entry = string option * context * term * term
+
+type substitution = (int * subst_entry) list
(******************************** OBJECTS **********************************)
-type inductiveFun = string * int * term * term
+type relevance = bool list (* relevance of arguments for conversion *)
+
+ (* relevance, name, recno, ty, bo *)
+type inductiveFun = relevance * string * int * term * term
(* if coinductive, the int has no meaning and must be set to -1 *)
-type constructor = string * term (* id, type *)
+type constructor = relevance * string * term (* id, type *)
type inductiveType =
- string * bool * term * int * (* typename, inductive, arity, leftno *)
- constructor list (* constructors *)
+ relevance * string * term * constructor list
+ (* relevance, typename, arity, constructors *)
type def_flavour = (* presentational *)
- [ `Definition | `Fact | `Lemma | `Remark | `Theorem | `Corollary ]
+ [ `Definition | `Fact | `Lemma | `Theorem | `Corollary | `Example ]
type def_pragma = (* pragmatic of the object *)
[ `Coercion of int
| `Elim of sort (* elimination principle; universe is not relevant *)
| `Projection (* record projection *)
| `InversionPrinciple (* inversion principle *)
- | `Variant ]
+ | `Variant
+ | `Local
+ | `Regular ] (* Local = hidden technicality *)
type ind_pragma = (* pragmatic of the object *)
- [ `Record of (string * bool * int) list ]
+ [ `Record of (string * bool * int) list | `Regular ]
(* inductive type that encodes a record; the arguments are the record
* fields names and if they are coercions and then the coercion arity *)
type i_attr = generated * ind_pragma
(* invariant: metasenv and substitution have disjoint domains *)
-type obj =
- | Constant of NUri.uri * metasenv * substitution * string * term option * term * c_attr
- | Fixpoint of NUri.uri * metasenv * substitution * bool * inductiveFun list * f_attr
- | Inductive of NUri.uri * metasenv * substitution * inductiveType list * i_attr
-
+type obj_kind =
+ | Constant of relevance * string * term option * term * c_attr
+ | Fixpoint of bool * inductiveFun list * f_attr
+ (* true -> fix, funcs, arrts *)
+ | Inductive of bool * int * inductiveType list * i_attr
+ (* true -> inductive, leftno, types *)
+
+ (* the int must be 0 if the object has no body *)
+type obj = NUri.uri * int * metasenv * substitution * obj_kind