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/
30 exception Ambiguous_input
31 (* the integer is an offset to be added to each location *)
32 exception DisambiguationError of
33 int * (Token.flocation option * string Lazy.t) list list
34 (** parameters are: option name, error message *)
35 exception Unbound_identifier of string
37 type choose_uris_callback =
38 id:string -> UriManager.uri list -> UriManager.uri list
40 type choose_interp_callback =
42 (Token.flocation list * string * string) list list -> int list
44 let mono_uris_callback ~id =
45 if Helm_registry.get_opt_default Helm_registry.get_bool ~default:true
46 "matita.auto_disambiguation"
52 let mono_interp_callback _ _ _ = raise Ambiguous_input
54 let _choose_uris_callback = ref mono_uris_callback
55 let _choose_interp_callback = ref mono_interp_callback
56 let set_choose_uris_callback f = _choose_uris_callback := f
57 let set_choose_interp_callback f = _choose_interp_callback := f
61 let interactive_user_uri_choice ~selection_mode ?ok
62 ?(enable_button_for_non_vars = true) ~title ~msg ~id uris =
63 !_choose_uris_callback ~id uris
65 let interactive_interpretation_choice interp =
66 !_choose_interp_callback interp
68 let input_or_locate_uri ~(title:string) ?id () = None
69 (* Zack: I try to avoid using this callback. I therefore assume that
70 * the presence of an identifier that can't be resolved via "locate"
71 * query is a syntax error *)
74 module Disambiguator = Disambiguate.Make (Callbacks)
76 (* implement module's API *)
78 let disambiguate_thing ~aliases ~universe
79 ~(f:?fresh_instances:bool ->
80 aliases:DisambiguateTypes.environment ->
81 universe:DisambiguateTypes.multiple_environment option ->
83 ~(drop_aliases: ?minimize_instances:bool -> 'b -> 'b)
84 ~(drop_aliases_and_clear_diff: 'b -> 'b)
87 assert (universe <> None);
88 let library = false, DisambiguateTypes.Environment.empty, None in
89 let multi_aliases = false, DisambiguateTypes.Environment.empty, universe in
90 let mono_aliases = true, aliases, Some DisambiguateTypes.Environment.empty in
91 let passes = (* <fresh_instances?, aliases, coercions?> *)
92 [ (false, mono_aliases, false);
93 (false, multi_aliases, false);
94 (true, mono_aliases, false);
95 (true, multi_aliases, false);
96 (true, mono_aliases, true);
97 (true, multi_aliases, true);
98 (true, library, false);
99 (* for demo to reduce the number of interpretations *)
100 (true, library, true);
103 let try_pass (fresh_instances, (_, aliases, universe), insert_coercions) =
104 CicRefine.insert_coercions := insert_coercions;
105 f ~fresh_instances ~aliases ~universe thing
107 let set_aliases (instances,(use_mono_aliases,_,_),_) (_, user_asked as res) =
108 if use_mono_aliases && not instances then
110 else if user_asked then
111 drop_aliases ~minimize_instances:true res (* one shot aliases *)
113 drop_aliases_and_clear_diff res
119 set_aliases pass (try_pass pass)
120 with Disambiguate.NoWellTypedInterpretation (offset,newerrors) ->
121 raise (DisambiguationError (offset, errors @ [newerrors])))
124 set_aliases hd (try_pass hd)
125 with Disambiguate.NoWellTypedInterpretation (_offset,newerrors) ->
126 aux (errors @ [newerrors]) tl)
129 let saved_insert_coercions = !CicRefine.insert_coercions in
131 let res = aux [] passes in
132 CicRefine.insert_coercions := saved_insert_coercions;
135 CicRefine.insert_coercions := saved_insert_coercions;
138 type disambiguator_thing =
141 aliases:DisambiguateTypes.environment ->
142 universe:DisambiguateTypes.multiple_environment option ->
143 f:(?fresh_instances:bool ->
144 aliases:DisambiguateTypes.environment ->
145 universe:DisambiguateTypes.multiple_environment option ->
147 drop_aliases:(?minimize_instances:bool -> 'b * bool -> 'b * bool) ->
148 drop_aliases_and_clear_diff:('b * bool -> 'b * bool) -> 'a -> 'b * bool
151 let disambiguate_thing =
152 let profiler = HExtlib.profile "disambiguate_thing" in
154 fun ~aliases ~universe ~f ~drop_aliases ~drop_aliases_and_clear_diff thing
155 -> profiler.HExtlib.profile
156 (disambiguate_thing ~aliases ~universe ~f ~drop_aliases
157 ~drop_aliases_and_clear_diff) thing
160 let drop_aliases ?(minimize_instances=false) (choices, user_asked) =
161 let module D = DisambiguateTypes in
163 if not minimize_instances then
169 | (D.Symbol (s,n),((descr,_) as ci)) as he::tl when n > 0 ->
173 (D.Symbol (s2,_),(descr2,_)) -> s2 <> s || descr = descr2
177 (D.Symbol (s,0),ci)::(aux tl)
180 | (D.Num n,((descr,_) as ci)) as he::tl when n > 0 ->
183 (function (D.Num _,(descr2,_)) -> descr = descr2 | _ -> true) d
185 (D.Num 0,ci)::(aux tl)
188 | he::tl -> he::(aux tl)
192 (List.map (fun (d, a, b, c) -> minimize d, a, b, c) choices),
195 let drop_aliases_and_clear_diff (choices, user_asked) =
196 (List.map (fun (_, a, b, c) -> [], a, b, c) choices),
199 let disambiguate_term ?fresh_instances ~dbd ~context ~metasenv ?initial_ugraph
200 ~aliases ~universe term
202 assert (fresh_instances = None);
204 Disambiguator.disambiguate_term ~dbd ~context ~metasenv ?initial_ugraph
206 disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
207 ~drop_aliases_and_clear_diff term
209 let disambiguate_obj ?fresh_instances ~dbd ~aliases ~universe ~uri obj =
210 assert (fresh_instances = None);
211 let f = Disambiguator.disambiguate_obj ~dbd ~uri in
212 disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
213 ~drop_aliases_and_clear_diff obj