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
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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.
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19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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23 * http://cs.unibo.it/helm/.
27 type coerc_carr = private
28 | Uri of UriManager.uri (* const, mutind, mutconstr *)
29 | Sort of Cic.sort (* Prop, Set, Type *)
34 val eq_carr: ?exact:bool -> coerc_carr -> coerc_carr -> bool
35 val string_of_carr: coerc_carr -> string
37 (* takes a term in whnf ~delta:false and a desired ariety *)
38 val coerc_carr_of_term: Cic.term -> int -> coerc_carr
42 (coerc_carr * coerc_carr * (UriManager.uri * int * int) list) list
45 val dump: unit -> coerc_db
46 val restore: coerc_db -> unit
48 (* src carr, tgt carr, uri, saturations, coerced position
50 * if the constant pointed by uri has n argments
51 * n = coerced position + saturations + FunClass arity
54 type saturations = int
55 type coerced_pos = int
57 coerc_carr * coerc_carr * UriManager.uri * saturations * coerced_pos
58 val add_coercion: coercion_entry -> unit
59 val remove_coercion: (coercion_entry -> bool) -> unit
62 (coerc_carr * coerc_carr -> bool) -> (UriManager.uri * int) list
64 val is_a_coercion: Cic.term -> coercion_entry option