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 let debug = ref false;;
32 if !debug then prerr_endline (Lazy.force s) else ();;
34 exception DisambiguationError of
36 ((Stdpp.location list * string * string) list *
37 (DisambiguateTypes.domain_item * string) list *
38 (Stdpp.location * string) Lazy.t * bool) list list
39 (** parameters are: option name, error message *)
41 (* implement module's API *)
43 let only_one_pass = ref false;;
44 let use_library = ref false;;
46 let passes () = (* <fresh_instances?, aliases, coercions?> *)
47 if !only_one_pass then
48 [ (true, `Mono, false) ]
49 else if !use_library then
50 [ (true, `Library, false);
51 (* for demo to reduce the number of interpretations *)
52 (true, `Library, true);
55 [ (true, `Multi, true); ]
57 [ (true, `Mono, false);
58 (true, `Multi, false);
64 let drop_aliases ?(minimize_instances=false) ~description_of_alias
67 let module D = DisambiguateTypes in
68 let compare ci1 ci2 = description_of_alias ci1 = description_of_alias ci2 in
70 if not minimize_instances then
76 | (D.Symbol (s,n),ci1) as he::tl when n <> None ->
80 (D.Symbol (s2,_),ci2) -> s2 <> s || compare ci1 ci2
84 (D.Symbol (s,None),ci1)::(aux tl)
87 | (D.Num n,ci1) as he::tl when n <> None ->
90 (function (D.Num _,ci2) -> compare ci1 ci2 | _ -> true) d
92 (D.Num None,ci1)::(aux tl)
95 | he::tl -> he::(aux tl)
99 (List.map (fun (d, a, b, c, e) -> minimize d, a, b, c, e) choices),
102 let drop_aliases_and_clear_diff (choices, user_asked) =
103 (List.map (fun (_, a, b, c, d) -> [], a, b, c, d) choices),
106 let disambiguate_thing ~description_of_alias ~passes ~aliases ~universe ~visit ~f thing
108 let library = false, DisambiguateTypes.Environment.empty,
109 DisambiguateTypes.Environment.empty in
110 let multi_aliases = false, DisambiguateTypes.Environment.empty, universe in
111 let mono_aliases = true, aliases, DisambiguateTypes.Environment.empty in
114 (function (fresh_instances,env,use_coercions) ->
116 (match env with `Mono -> mono_aliases | `Multi -> multi_aliases |
117 `Library -> library),
118 use_coercions) passes in
119 let try_pass (fresh_instances, (_, aliases, universe), use_coercions) =
120 f ~fresh_instances ~aliases ~universe ~use_coercions thing
122 let set_aliases (instances,(use_mono_aliases,_,_),_) (_, user_asked as res) =
123 if use_mono_aliases then
124 drop_aliases ~minimize_instances:true ~description_of_alias res (* one shot aliases *)
125 else if user_asked then
126 drop_aliases ~minimize_instances:true ~description_of_alias res (* one shot aliases *)
128 drop_aliases_and_clear_diff res
130 let rec aux i errors passes =
131 debug_print (lazy ("Pass: " ^ string_of_int i));
135 set_aliases pass (try_pass pass)
136 with Disambiguate.NoWellTypedInterpretation (offset,newerrors) ->
137 raise (DisambiguationError (offset, errors @ [newerrors])))
140 set_aliases hd (try_pass hd)
141 with Disambiguate.NoWellTypedInterpretation (_offset,newerrors) ->
142 aux (i+1) (errors @ [newerrors]) tl)
148 let disambiguate_thing ~passes ~freshen_thing ~context ~metasenv ~subst
149 ~string_context_of_context ~initial_ugraph ~expty ~mk_implicit
150 ~description_of_alias ~fix_instance ~aliases ~universe ~lookup_in_library
151 ~uri ~pp_thing ~pp_term ~domain_of_thing ~interpretate_thing ~refine_thing ~visit
152 ~mk_localization_tbl thing
154 let f ~fresh_instances ~aliases ~universe ~use_coercions (txt,len,thing) =
155 let thing = if fresh_instances then freshen_thing thing else thing in
156 Disambiguate.disambiguate_thing
157 ~context ~metasenv ~subst ~use_coercions ~string_context_of_context
158 ~initial_ugraph ~expty ~mk_implicit ~description_of_alias ~fix_instance
159 ~aliases ~universe ~lookup_in_library
160 ~uri ~pp_thing ~domain_of_thing ~interpretate_thing ~refine_thing ~visit
161 ~mk_localization_tbl ~pp_term (txt,len,thing)
163 disambiguate_thing ~description_of_alias ~passes ~aliases
164 ~universe ~visit ~f thing