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/.
26 (****************************************************************************)
30 (* Claudio Sacerdoti Coen <sacerdot@cs.unibo.it> *)
33 (* This module implements a trival cache system (an hash-table) for cic *)
35 (* objects. Uses the getter (getter.ml) and the parser (cicParser.ml) *)
37 (****************************************************************************)
39 exception CircularDependency of string Lazy.t;;
40 exception Object_not_found of UriManager.uri;;
42 (* as the get cooked, but if not present the object is only fetched,
43 * not unfreezed and committed
46 CicUniv.universe_graph -> UriManager.uri ->
47 Cic.obj * CicUniv.universe_graph
49 type type_checked_obj =
50 | CheckedObj of (Cic.obj * CicUniv.universe_graph)
51 | UncheckedObj of Cic.obj * (CicUniv.universe_graph * CicUniv.universe list) option
54 ?trust:bool -> CicUniv.universe_graph -> UriManager.uri ->
57 (* set_type_checking_info uri *)
58 (* must be called once the type-checking of uri is finished *)
59 (* The object whose uri is uri is unfreezed and won't be type-checked *)
60 (* again in the future (is_type_checked will return true) *)
62 (* WARNING: THIS FUNCTION MUST BE CALLED ONLY BY CicTypeChecker *)
63 val set_type_checking_info : UriManager.uri ->
64 (Cic.obj * CicUniv.universe_graph * CicUniv.universe list) -> unit
66 (* this function is called by CicTypeChecker.typecheck_obj to add to the *)
67 (* environment a new well typed object that is not yet in the library *)
68 (* WARNING: THIS FUNCTION MUST BE CALLED ONLY BY CicTypeChecker *)
69 val add_type_checked_obj :
71 (Cic.obj * CicUniv.universe_graph * CicUniv.universe list) -> unit
73 (** remove a type checked object
74 * @raise Object_not_found when given term is not in the environment
75 * @raise Failure when remove_term is invoked while type checking *)
76 val remove_obj: UriManager.uri -> unit
78 (* get_cooked_obj ~trust uri *)
79 (* returns the object if it is already type-checked or if it can be *)
80 (* trusted (if [trust] = true and the trusting function accepts it) *)
81 (* Otherwise it raises Not_found *)
83 ?trust:bool -> CicUniv.universe_graph -> UriManager.uri ->
84 Cic.obj * CicUniv.universe_graph
86 (* get_cooked_obj_with_univlist ~trust uri *)
87 (* returns the object if it is already type-checked or if it can be *)
88 (* trusted (if [trust] = true and the trusting function accepts it) *)
89 (* Otherwise it raises Not_found *)
90 val get_cooked_obj_with_univlist :
91 ?trust:bool -> CicUniv.universe_graph -> UriManager.uri ->
92 Cic.obj * CicUniv.universe_graph * CicUniv.universe list
94 (* FUNCTIONS USED ONLY IN THE TOPLEVEL/PROOF-ENGINE *)
96 (* (de)serialization *)
97 val dump_to_channel : ?callback:(string -> unit) -> out_channel -> unit
98 val restore_from_channel : ?callback:(string -> unit) -> in_channel -> unit
99 val empty : unit -> unit
101 (** Set trust function. Per default this function is set to (fun _ -> true) *)
102 val set_trust: (UriManager.uri -> bool) -> unit
104 (** @return true for objects currently cooked/frozend/unchecked, false
105 * otherwise (i.e. objects already parsed from XML) *)
106 val in_cache : UriManager.uri -> bool
108 (* to debug the matitac batch compiler *)
109 val list_obj: unit -> (UriManager.uri * Cic.obj * CicUniv.universe_graph) list
110 val list_uri: unit -> UriManager.uri list
112 (** @return true for objects available in the library *)
113 val in_library: UriManager.uri -> bool
115 (** total parsing time, only to benchmark the parser *)
116 val total_parsing_time: float ref
118 val invalidate: unit -> unit