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 = (string * string) list list -> int list
42 let mono_uris_callback ~id =
43 if Helm_registry.get_opt_default Helm_registry.get_bool ~default:true
44 "matita.auto_disambiguation"
50 let mono_interp_callback _ = raise Ambiguous_input
52 let _choose_uris_callback = ref mono_uris_callback
53 let _choose_interp_callback = ref mono_interp_callback
54 let set_choose_uris_callback f = _choose_uris_callback := f
55 let set_choose_interp_callback f = _choose_interp_callback := f
59 let interactive_user_uri_choice ~selection_mode ?ok
60 ?(enable_button_for_non_vars = true) ~title ~msg ~id uris =
61 !_choose_uris_callback ~id uris
63 let interactive_interpretation_choice interp =
64 !_choose_interp_callback interp
66 let input_or_locate_uri ~(title:string) ?id =
67 (* Zack: I try to avoid using this callback. I therefore assume that
68 * the presence of an identifier that can't be resolved via "locate"
69 * query is a syntax error *)
70 let msg = match id with Some id -> id | _ -> "_" in
71 raise (Unbound_identifier msg)
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, true);
101 let try_pass (fresh_instances, (_, aliases, universe), insert_coercions) =
102 CicRefine.insert_coercions := insert_coercions;
103 f ~fresh_instances ~aliases ~universe thing
105 let set_aliases (instances,(use_mono_aliases,_,_),_) (_, user_asked as res) =
106 if use_mono_aliases && not instances then
108 else if user_asked then
109 drop_aliases ~minimize_instances:true res (* one shot aliases *)
111 drop_aliases_and_clear_diff res
117 set_aliases pass (try_pass pass)
118 with Disambiguate.NoWellTypedInterpretation (offset,newerrors) ->
119 raise (DisambiguationError (offset, errors @ [newerrors])))
122 set_aliases hd (try_pass hd)
123 with Disambiguate.NoWellTypedInterpretation (_offset,newerrors) ->
124 aux (errors @ [newerrors]) tl)
127 let saved_insert_coercions = !CicRefine.insert_coercions in
129 let res = aux [] passes in
130 CicRefine.insert_coercions := saved_insert_coercions;
133 CicRefine.insert_coercions := saved_insert_coercions;
136 type disambiguator_thing =
139 aliases:DisambiguateTypes.environment ->
140 universe:DisambiguateTypes.multiple_environment option ->
141 f:(?fresh_instances:bool ->
142 aliases:DisambiguateTypes.environment ->
143 universe:DisambiguateTypes.multiple_environment option ->
145 drop_aliases:(?minimize_instances:bool -> 'b * bool -> 'b * bool) ->
146 drop_aliases_and_clear_diff:('b * bool -> 'b * bool) -> 'a -> 'b * bool
149 let disambiguate_thing =
150 let profiler = HExtlib.profile "disambiguate_thing" in
152 fun ~aliases ~universe ~f ~drop_aliases ~drop_aliases_and_clear_diff thing
153 -> profiler.HExtlib.profile
154 (disambiguate_thing ~aliases ~universe ~f ~drop_aliases
155 ~drop_aliases_and_clear_diff) thing
158 let drop_aliases ?(minimize_instances=false) (choices, user_asked) =
159 let module D = DisambiguateTypes in
161 if not minimize_instances then
167 | (D.Symbol (s,n),((descr,_) as ci)) as he::tl when n > 0 ->
171 (D.Symbol (s2,_),(descr2,_)) -> s2 <> s || descr = descr2
175 (D.Symbol (s,0),ci)::(aux tl)
178 | (D.Num n,((descr,_) as ci)) as he::tl when n > 0 ->
181 (function (D.Num _,(descr2,_)) -> descr = descr2 | _ -> true) d
183 (D.Num 0,ci)::(aux tl)
186 | he::tl -> he::(aux tl)
190 (List.map (fun (d, a, b, c) -> minimize d, a, b, c) choices),
193 let drop_aliases_and_clear_diff (choices, user_asked) =
194 (List.map (fun (_, a, b, c) -> [], a, b, c) choices),
197 let disambiguate_term ?fresh_instances ~dbd ~context ~metasenv ?initial_ugraph
198 ~aliases ~universe term
200 assert (fresh_instances = None);
202 Disambiguator.disambiguate_term ~dbd ~context ~metasenv ?initial_ugraph
204 disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
205 ~drop_aliases_and_clear_diff term
207 let disambiguate_obj ?fresh_instances ~dbd ~aliases ~universe ~uri obj =
208 assert (fresh_instances = None);
209 let f = Disambiguator.disambiguate_obj ~dbd ~uri in
210 disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
211 ~drop_aliases_and_clear_diff obj