+++ /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/
- *)
-
-(* $Id$ *)
-
-open Printf
-
-let debug = false;;
-let debug_print s =
- if debug then prerr_endline (Lazy.force s);;
-
-exception Ambiguous_input
-(* the integer is an offset to be added to each location *)
-exception DisambiguationError of
- int *
- ((Stdpp.location list * string * string) list *
- (DisambiguateTypes.domain_item * string) list *
- (Stdpp.location * string) Lazy.t * bool) list list
- (** parameters are: option name, error message *)
-exception Unbound_identifier of string
-
-type choose_uris_callback =
- id:string -> UriManager.uri list -> UriManager.uri list
-
-type choose_interp_callback =
- string -> int ->
- (Stdpp.location list * string * string) list list -> int list
-
-let mono_uris_callback ~id =
- if Helm_registry.get_opt_default Helm_registry.get_bool ~default:true
- "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 () = None
- (* 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 *)
- end
-
-module Disambiguator = Disambiguate.Make (Callbacks)
-
-(* implement module's API *)
-
-let only_one_pass = ref false;;
-
-let disambiguate_thing ~aliases ~universe
- ~(f:?fresh_instances:bool ->
- aliases:'term DisambiguateTypes.environment ->
- universe:'term DisambiguateTypes.multiple_environment option ->
- 'a -> 'b)
- ~(drop_aliases: ?minimize_instances:bool -> '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?> *)
- if !only_one_pass then
- [ (true, mono_aliases, false) ]
- else
- [ (true, mono_aliases, false);
- (true, multi_aliases, false);
- (true, mono_aliases, true);
- (true, multi_aliases, true);
- (true, library, false);
- (* for demo to reduce the number of interpretations *)
- (true, library, true);
- ]
- in
- let try_pass (fresh_instances, (_, aliases, universe), insert_coercions) =
- CicRefine.insert_coercions := insert_coercions;
- f ~fresh_instances ~aliases ~universe thing
- in
- let set_aliases (instances,(use_mono_aliases,_,_),_) (_, user_asked as res) =
- if use_mono_aliases then
- drop_aliases ~minimize_instances:true res (* one shot aliases *)
- else if user_asked then
- drop_aliases ~minimize_instances:true res (* one shot aliases *)
- else
- drop_aliases_and_clear_diff res
- in
- let rec aux i errors passes =
- debug_print (lazy ("Pass: " ^ string_of_int i));
- match passes with
- [ 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 (i+1) (errors @ [newerrors]) tl)
- | [] -> assert false
- in
- let saved_insert_coercions = !CicRefine.insert_coercions in
- try
- let res = aux 1 [] passes in
- CicRefine.insert_coercions := saved_insert_coercions;
- res
- with exn ->
- CicRefine.insert_coercions := saved_insert_coercions;
- raise exn
-
-type disambiguator_thing =
- { do_it :
- 'a 'b 'term.
- aliases:'term DisambiguateTypes.environment ->
- universe:'term DisambiguateTypes.multiple_environment option ->
- f:(?fresh_instances:bool ->
- aliases:'term DisambiguateTypes.environment ->
- universe:'term DisambiguateTypes.multiple_environment option ->
- 'a -> 'b * bool) ->
- drop_aliases:(?minimize_instances:bool -> '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 ?(minimize_instances=false) (choices, user_asked) =
- let module D = DisambiguateTypes in
- let minimize d =
- if not minimize_instances then
- d
- else
- let rec aux =
- function
- [] -> []
- | (D.Symbol (s,n),((descr,_) as ci)) as he::tl when n > 0 ->
- if
- List.for_all
- (function
- (D.Symbol (s2,_),(descr2,_)) -> s2 <> s || descr = descr2
- | _ -> true
- ) d
- then
- (D.Symbol (s,0),ci)::(aux tl)
- else
- he::(aux tl)
- | (D.Num n,((descr,_) as ci)) as he::tl when n > 0 ->
- if
- List.for_all
- (function (D.Num _,(descr2,_)) -> descr = descr2 | _ -> true) d
- then
- (D.Num 0,ci)::(aux tl)
- else
- he::(aux tl)
- | he::tl -> he::(aux tl)
- in
- aux d
- in
- (List.map (fun (d, a, b, c, e) -> minimize d, a, b, c, e) choices),
- user_asked
-
-let drop_aliases_and_clear_diff (choices, user_asked) =
- (List.map (fun (_, a, b, c, d) -> [], a, b, c, d) choices),
- user_asked
-
-let disambiguate_term ?fresh_instances ~context ~metasenv ~subst ?goal ?initial_ugraph ~aliases ~universe ~lookup_in_library term
- =
- assert (fresh_instances = None);
- let f =
- Disambiguator.disambiguate_term ~lookup_in_library ~context ~metasenv ~subst ?goal ?initial_ugraph
- in
- disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
- ~drop_aliases_and_clear_diff term
-
-let disambiguate_obj ?fresh_instances ~aliases ~universe ~uri ~lookup_in_library obj =
- assert (fresh_instances = None);
- let f = Disambiguator.disambiguate_obj ~lookup_in_library ~uri in
- disambiguate_thing.do_it ~aliases ~universe ~f ~drop_aliases
- ~drop_aliases_and_clear_diff obj
-
-let disambiguate_thing ~context = assert false
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