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
34 ((Token.flocation list * string * string) list *
35 (DisambiguateTypes.domain_item * DisambiguateTypes.codomain_item) list *
36 Token.flocation option * string Lazy.t * bool) list list
37 (** parameters are: option name, error message *)
38 exception Unbound_identifier of string
40 type choose_uris_callback =
41 id:string -> UriManager.uri list -> UriManager.uri list
43 type choose_interp_callback =
45 (Token.flocation list * string * string) list list -> int list
47 let mono_uris_callback ~id =
48 if Helm_registry.get_opt_default Helm_registry.get_bool ~default:true
49 "matita.auto_disambiguation"
55 let mono_interp_callback _ _ _ = raise Ambiguous_input
57 let _choose_uris_callback = ref mono_uris_callback
58 let _choose_interp_callback = ref mono_interp_callback
59 let set_choose_uris_callback f = _choose_uris_callback := f
60 let set_choose_interp_callback f = _choose_interp_callback := f
64 let interactive_user_uri_choice ~selection_mode ?ok
65 ?(enable_button_for_non_vars = true) ~title ~msg ~id uris =
66 !_choose_uris_callback ~id uris
68 let interactive_interpretation_choice interp =
69 !_choose_interp_callback interp
71 let input_or_locate_uri ~(title:string) ?id () = None
72 (* Zack: I try to avoid using this callback. I therefore assume that
73 * the presence of an identifier that can't be resolved via "locate"
74 * query is a syntax error *)
77 module Disambiguator = Disambiguate.Make (Callbacks)
79 (* implement module's API *)
81 let only_one_pass = ref false;;
83 let disambiguate_thing ~aliases ~universe
84 ~(f:?fresh_instances:bool ->
85 aliases:DisambiguateTypes.environment ->
86 universe:DisambiguateTypes.multiple_environment option ->
88 ~(drop_aliases: ?minimize_instances:bool -> 'b -> 'b)
89 ~(drop_aliases_and_clear_diff: 'b -> 'b)
92 assert (universe <> None);
93 let library = false, DisambiguateTypes.Environment.empty, None in
94 let multi_aliases = false, DisambiguateTypes.Environment.empty, universe in
95 let mono_aliases = true, aliases, Some DisambiguateTypes.Environment.empty in
96 let passes = (* <fresh_instances?, aliases, coercions?> *)
97 if !only_one_pass then
98 [ (true, mono_aliases, false) ]
100 [ (true, mono_aliases, false);
101 (true, multi_aliases, false);
102 (true, mono_aliases, true);
103 (true, multi_aliases, true);
104 (true, library, false);
105 (* for demo to reduce the number of interpretations *)
106 (true, library, true);
109 let try_pass (fresh_instances, (_, aliases, universe), insert_coercions) =
110 CicRefine.insert_coercions := insert_coercions;
111 f ~fresh_instances ~aliases ~universe thing
113 let set_aliases (instances,(use_mono_aliases,_,_),_) (_, user_asked as res) =
114 if use_mono_aliases then
115 drop_aliases ~minimize_instances:true res (* one shot aliases *)
116 else if user_asked then
117 drop_aliases ~minimize_instances:true res (* one shot aliases *)
119 drop_aliases_and_clear_diff res
121 let rec aux i errors passes =
122 (*prerr_endline ("Pass: " ^ string_of_int i);*)
126 set_aliases pass (try_pass pass)
127 with Disambiguate.NoWellTypedInterpretation (offset,newerrors) ->
128 raise (DisambiguationError (offset, errors @ [newerrors])))
131 set_aliases hd (try_pass hd)
132 with Disambiguate.NoWellTypedInterpretation (_offset,newerrors) ->
133 aux (i+1) (errors @ [newerrors]) tl)
136 let saved_insert_coercions = !CicRefine.insert_coercions in
138 let res = aux 1 [] passes in
139 CicRefine.insert_coercions := saved_insert_coercions;
142 CicRefine.insert_coercions := saved_insert_coercions;
145 type disambiguator_thing =
148 aliases:DisambiguateTypes.environment ->
149 universe:DisambiguateTypes.multiple_environment option ->
150 f:(?fresh_instances:bool ->
151 aliases:DisambiguateTypes.environment ->
152 universe:DisambiguateTypes.multiple_environment option ->
154 drop_aliases:(?minimize_instances:bool -> 'b * bool -> 'b * bool) ->
155 drop_aliases_and_clear_diff:('b * bool -> 'b * bool) -> 'a -> 'b * bool
158 let disambiguate_thing =
159 let profiler = HExtlib.profile "disambiguate_thing" in
161 fun ~aliases ~universe ~f ~drop_aliases ~drop_aliases_and_clear_diff thing
162 -> profiler.HExtlib.profile
163 (disambiguate_thing ~aliases ~universe ~f ~drop_aliases
164 ~drop_aliases_and_clear_diff) thing
167 let drop_aliases ?(minimize_instances=false) (choices, user_asked) =
168 let module D = DisambiguateTypes in
170 if not minimize_instances then
176 | (D.Symbol (s,n),((descr,_) as ci)) as he::tl when n > 0 ->
180 (D.Symbol (s2,_),(descr2,_)) -> s2 <> s || descr = descr2
184 (D.Symbol (s,0),ci)::(aux tl)
187 | (D.Num n,((descr,_) as ci)) as he::tl when n > 0 ->
190 (function (D.Num _,(descr2,_)) -> descr = descr2 | _ -> true) d
192 (D.Num 0,ci)::(aux tl)
195 | he::tl -> he::(aux tl)
199 (List.map (fun (d, a, b, c) -> minimize d, a, b, c) choices),
202 let drop_aliases_and_clear_diff (choices, user_asked) =
203 (List.map (fun (_, a, b, c) -> [], a, b, c) choices),
206 let disambiguate_term ?fresh_instances ~dbd ~context ~metasenv ?initial_ugraph
207 ~aliases ~universe term
209 assert (fresh_instances = None);
211 Disambiguator.disambiguate_term ~dbd ~context ~metasenv ?initial_ugraph
213 disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
214 ~drop_aliases_and_clear_diff term
216 let disambiguate_obj ?fresh_instances ~dbd ~aliases ~universe ~uri obj =
217 assert (fresh_instances = None);
218 let f = Disambiguator.disambiguate_obj ~dbd ~uri in
219 disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
220 ~drop_aliases_and_clear_diff obj