1 (* Copyright (C) 2004-2005, 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://helm.cs.unibo.it/
32 if debug then prerr_endline (Lazy.force s);;
34 exception Ambiguous_input
35 (* the integer is an offset to be added to each location *)
36 exception DisambiguationError of
38 ((Stdpp.location list * string * string) list *
39 (DisambiguateTypes.domain_item * DisambiguateTypes.codomain_item) list *
40 Stdpp.location option * string Lazy.t * bool) list list
41 (** parameters are: option name, error message *)
42 exception Unbound_identifier of string
44 type choose_uris_callback =
45 id:string -> UriManager.uri list -> UriManager.uri list
47 type choose_interp_callback =
49 (Stdpp.location list * string * string) list list -> int list
51 let mono_uris_callback ~id =
52 if Helm_registry.get_opt_default Helm_registry.get_bool ~default:true
53 "matita.auto_disambiguation"
59 let mono_interp_callback _ _ _ = raise Ambiguous_input
61 let _choose_uris_callback = ref mono_uris_callback
62 let _choose_interp_callback = ref mono_interp_callback
63 let set_choose_uris_callback f = _choose_uris_callback := f
64 let set_choose_interp_callback f = _choose_interp_callback := f
68 let interactive_user_uri_choice ~selection_mode ?ok
69 ?(enable_button_for_non_vars = true) ~title ~msg ~id uris =
70 !_choose_uris_callback ~id uris
72 let interactive_interpretation_choice interp =
73 !_choose_interp_callback interp
75 let input_or_locate_uri ~(title:string) ?id () = None
76 (* Zack: I try to avoid using this callback. I therefore assume that
77 * the presence of an identifier that can't be resolved via "locate"
78 * query is a syntax error *)
81 module Disambiguator = Disambiguate.Make (Callbacks)
83 (* implement module's API *)
85 let only_one_pass = ref false;;
87 let disambiguate_thing ~aliases ~universe
88 ~(f:?fresh_instances:bool ->
89 aliases:DisambiguateTypes.environment ->
90 universe:DisambiguateTypes.multiple_environment option ->
92 ~(drop_aliases: ?minimize_instances:bool -> 'b -> 'b)
93 ~(drop_aliases_and_clear_diff: 'b -> 'b)
96 assert (universe <> None);
97 let library = false, DisambiguateTypes.Environment.empty, None in
98 let multi_aliases = false, DisambiguateTypes.Environment.empty, universe in
99 let mono_aliases = true, aliases, Some DisambiguateTypes.Environment.empty in
100 let passes = (* <fresh_instances?, aliases, coercions?> *)
101 if !only_one_pass then
102 [ (true, mono_aliases, false) ]
104 [ (true, mono_aliases, false);
105 (true, multi_aliases, false);
106 (true, mono_aliases, true);
107 (true, multi_aliases, true);
108 (true, library, false);
109 (* for demo to reduce the number of interpretations *)
110 (true, library, true);
113 let try_pass (fresh_instances, (_, aliases, universe), insert_coercions) =
114 CicRefine.insert_coercions := insert_coercions;
115 f ~fresh_instances ~aliases ~universe thing
117 let set_aliases (instances,(use_mono_aliases,_,_),_) (_, user_asked as res) =
118 if use_mono_aliases then
119 drop_aliases ~minimize_instances:true res (* one shot aliases *)
120 else if user_asked then
121 drop_aliases ~minimize_instances:true res (* one shot aliases *)
123 drop_aliases_and_clear_diff res
125 let rec aux i errors passes =
126 debug_print (lazy ("Pass: " ^ string_of_int i));
130 set_aliases pass (try_pass pass)
131 with Disambiguate.NoWellTypedInterpretation (offset,newerrors) ->
132 raise (DisambiguationError (offset, errors @ [newerrors])))
135 set_aliases hd (try_pass hd)
136 with Disambiguate.NoWellTypedInterpretation (_offset,newerrors) ->
137 aux (i+1) (errors @ [newerrors]) tl)
140 let saved_insert_coercions = !CicRefine.insert_coercions in
142 let res = aux 1 [] passes in
143 CicRefine.insert_coercions := saved_insert_coercions;
146 CicRefine.insert_coercions := saved_insert_coercions;
149 type disambiguator_thing =
152 aliases:DisambiguateTypes.environment ->
153 universe:DisambiguateTypes.multiple_environment option ->
154 f:(?fresh_instances:bool ->
155 aliases:DisambiguateTypes.environment ->
156 universe:DisambiguateTypes.multiple_environment option ->
158 drop_aliases:(?minimize_instances:bool -> 'b * bool -> 'b * bool) ->
159 drop_aliases_and_clear_diff:('b * bool -> 'b * bool) -> 'a -> 'b * bool
162 let disambiguate_thing =
163 let profiler = HExtlib.profile "disambiguate_thing" in
165 fun ~aliases ~universe ~f ~drop_aliases ~drop_aliases_and_clear_diff thing
166 -> profiler.HExtlib.profile
167 (disambiguate_thing ~aliases ~universe ~f ~drop_aliases
168 ~drop_aliases_and_clear_diff) thing
171 let drop_aliases ?(minimize_instances=false) (choices, user_asked) =
172 let module D = DisambiguateTypes in
174 if not minimize_instances then
180 | (D.Symbol (s,n),((descr,_) as ci)) as he::tl when n > 0 ->
184 (D.Symbol (s2,_),(descr2,_)) -> s2 <> s || descr = descr2
188 (D.Symbol (s,0),ci)::(aux tl)
191 | (D.Num n,((descr,_) as ci)) as he::tl when n > 0 ->
194 (function (D.Num _,(descr2,_)) -> descr = descr2 | _ -> true) d
196 (D.Num 0,ci)::(aux tl)
199 | he::tl -> he::(aux tl)
203 (List.map (fun (d, a, b, c) -> minimize d, a, b, c) choices),
206 let drop_aliases_and_clear_diff (choices, user_asked) =
207 (List.map (fun (_, a, b, c) -> [], a, b, c) choices),
210 let disambiguate_term ?fresh_instances ~dbd ~context ~metasenv ?initial_ugraph
211 ~aliases ~universe term
213 assert (fresh_instances = None);
215 Disambiguator.disambiguate_term ~dbd ~context ~metasenv ?initial_ugraph
217 disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
218 ~drop_aliases_and_clear_diff term
220 let disambiguate_obj ?fresh_instances ~dbd ~aliases ~universe ~uri obj =
221 assert (fresh_instances = None);
222 let f = Disambiguator.disambiguate_obj ~dbd ~uri in
223 disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
224 ~drop_aliases_and_clear_diff obj