+++ /dev/null
-(* Copyright (C) 2004-2005, HELM Team.
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://helm.cs.unibo.it/
- *)
-
-open Printf
-
-open MatitaTypes
-
-exception Ambiguous_input
-(* the integer is an offset to be added to each location *)
-exception DisambiguationError of
- int * (Token.flocation option * string Lazy.t) list list
-
-type choose_uris_callback =
- id:string -> UriManager.uri list -> UriManager.uri list
-
-type choose_interp_callback = (string * string) list list -> int list
-
-let mono_uris_callback ~id =
- if Helm_registry.get_bool "matita.auto_disambiguation" then
- function l -> l
- else
- raise Ambiguous_input
-
-let mono_interp_callback _ = raise Ambiguous_input
-
-let _choose_uris_callback = ref mono_uris_callback
-let _choose_interp_callback = ref mono_interp_callback
-let set_choose_uris_callback f = _choose_uris_callback := f
-let set_choose_interp_callback f = _choose_interp_callback := f
-
-module Callbacks =
- struct
- let interactive_user_uri_choice ~selection_mode ?ok
- ?(enable_button_for_non_vars = true) ~title ~msg ~id uris =
- !_choose_uris_callback ~id uris
-
- let interactive_interpretation_choice interp =
- !_choose_interp_callback interp
-
- let input_or_locate_uri ~(title:string) ?id =
- (* Zack: I try to avoid using this callback. I therefore assume that
- * the presence of an identifier that can't be resolved via "locate"
- * query is a syntax error *)
- let msg = match id with Some id -> id | _ -> "_" in
- raise (Unbound_identifier msg)
- end
-
-module Disambiguator = Disambiguate.Make (Callbacks)
-
-(* implement module's API *)
-
-let disambiguate_thing ~aliases ~universe
- ~(f:?fresh_instances:bool ->
- aliases:DisambiguateTypes.environment ->
- universe:DisambiguateTypes.multiple_environment option ->
- 'a -> 'b)
- ~(drop_aliases: 'b -> 'b)
- ~(drop_aliases_and_clear_diff: 'b -> 'b)
- (thing: 'a)
-=
- assert (universe <> None);
- let library = false, DisambiguateTypes.Environment.empty, None in
- let multi_aliases = false, DisambiguateTypes.Environment.empty, universe in
- let mono_aliases = true, aliases, Some DisambiguateTypes.Environment.empty in
- let passes = (* <fresh_instances?, aliases, coercions?> *)
- [ (false, mono_aliases, false);
- (false, multi_aliases, false);
- (true, mono_aliases, false);
- (true, multi_aliases, false);
- (true, mono_aliases, true);
- (true, multi_aliases, true);
- (true, library, true);
- ]
- in
- let try_pass (fresh_instances, (_, aliases, universe), use_coercions) =
- CoercDb.use_coercions := use_coercions;
- f ~fresh_instances ~aliases ~universe thing
- in
- let set_aliases (instances,(use_mono_aliases,_,_),_) (_, user_asked as res) =
- if use_mono_aliases && not instances then
- drop_aliases res
- else if user_asked then
- drop_aliases res (* one shot aliases *)
- else
- drop_aliases_and_clear_diff res
- in
- let rec aux errors =
- function
- | [ pass ] ->
- (try
- set_aliases pass (try_pass pass)
- with Disambiguate.NoWellTypedInterpretation (offset,newerrors) ->
- raise (DisambiguationError (offset, errors @ [newerrors])))
- | hd :: tl ->
- (try
- set_aliases hd (try_pass hd)
- with Disambiguate.NoWellTypedInterpretation (_offset,newerrors) ->
- aux (errors @ [newerrors]) tl)
- | [] -> assert false
- in
- let saved_use_coercions = !CoercDb.use_coercions in
- try
- let res = aux [] passes in
- CoercDb.use_coercions := saved_use_coercions;
- res
- with exn ->
- CoercDb.use_coercions := saved_use_coercions;
- raise exn
-
-type disambiguator_thing =
- { do_it :
- 'a 'b.
- aliases:DisambiguateTypes.environment ->
- universe:DisambiguateTypes.multiple_environment option ->
- f:(?fresh_instances:bool ->
- aliases:DisambiguateTypes.environment ->
- universe:DisambiguateTypes.multiple_environment option ->
- 'a -> 'b * bool) ->
- drop_aliases:('b * bool -> 'b * bool) ->
- drop_aliases_and_clear_diff:('b * bool -> 'b * bool) -> 'a -> 'b * bool
- }
-
-let disambiguate_thing =
- let profiler = HExtlib.profile "disambiguate_thing" in
- { do_it =
- fun ~aliases ~universe ~f ~drop_aliases ~drop_aliases_and_clear_diff thing
- -> profiler.HExtlib.profile
- (disambiguate_thing ~aliases ~universe ~f ~drop_aliases
- ~drop_aliases_and_clear_diff) thing
- }
-
-let drop_aliases (choices, user_asked) =
- (List.map (fun (d, a, b, c) -> d, a, b, c) choices),
- user_asked
-
-let drop_aliases_and_clear_diff (choices, user_asked) =
- (List.map (fun (_, a, b, c) -> [], a, b, c) choices),
- user_asked
-
-let disambiguate_term ?fresh_instances ~dbd ~context ~metasenv ?initial_ugraph
- ~aliases ~universe term
- =
- assert (fresh_instances = None);
- let f =
- Disambiguator.disambiguate_term ~dbd ~context ~metasenv ?initial_ugraph
- in
- disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
- ~drop_aliases_and_clear_diff term
-
-let disambiguate_obj ?fresh_instances ~dbd ~aliases ~universe ~uri obj =
- assert (fresh_instances = None);
- let f = Disambiguator.disambiguate_obj ~dbd ~uri in
- disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
- ~drop_aliases_and_clear_diff obj
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