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/
31 module TA = GrafiteAst
34 let debug_print = if debug then prerr_endline else ignore
36 (** raised when one of the script margins (top or bottom) is reached *)
38 exception NoUnfinishedProof
39 exception ActionCancelled of string
41 let safe_substring s i j =
42 try String.sub s i j with Invalid_argument _ -> assert false
44 let heading_nl_RE = Pcre.regexp "^\\s*\n\\s*"
45 let heading_nl_RE' = Pcre.regexp "^(\\s*\n\\s*)"
46 let only_dust_RE = Pcre.regexp "^(\\s|\n|%%[^\n]*\n)*$"
47 let multiline_RE = Pcre.regexp "^\n[^\n]+$"
48 let newline_RE = Pcre.regexp "\n"
49 let comment_RE = Pcre.regexp "\\(\\*(.|\n)*\\*\\)\n?" ~flags:[`UNGREEDY]
52 if Pcre.pmatch ~rex:multiline_RE str then
53 "\n(** " ^ (Pcre.replace ~rex:newline_RE str) ^ " *)"
55 "\n(**\n" ^ str ^ "\n*)"
57 let strip_comments str =
58 Pcre.qreplace ~templ:"\n" ~pat:"\n\n" (Pcre.qreplace ~rex:comment_RE str)
62 let s = Pcre.replace ~rex:heading_nl_RE s in
64 let nl_pos = String.index s '\n' in
69 urichooser: NReference.reference list -> NReference.reference list;
70 ask_confirmation: title:string -> message:string -> [`YES | `NO | `CANCEL];
73 let eval_with_engine include_paths guistuff grafite_status user_goal
74 skipped_txt nonskipped_txt st
76 let parsed_text_length =
77 String.length skipped_txt + String.length nonskipped_txt
79 let text = skipped_txt ^ nonskipped_txt in
80 let prefix_len = MatitaGtkMisc.utf8_string_length skipped_txt in
81 let enriched_history_fragment =
82 MatitaEngine.eval_ast ~include_paths ~do_heavy_checks:(Helm_registry.get_bool
83 "matita.do_heavy_checks")
84 grafite_status (text,prefix_len,st)
86 let enriched_history_fragment = List.rev enriched_history_fragment in
90 (fun (acc, to_prepend) (status,alias) ->
92 | None -> (status,to_prepend ^ nonskipped_txt)::acc,""
94 let newtxt = GrafiteAstPp.pp_alias value in
95 (status,to_prepend ^ newtxt ^ "\n")::acc, "")
96 ([],skipped_txt) enriched_history_fragment
98 res,"",parsed_text_length
101 let pp_eager_statement_ast = GrafiteAstPp.pp_statement
103 let eval_nmacro include_paths (buffer : GText.buffer) guistuff grafite_status user_goal unparsed_text parsed_text script mac =
104 let parsed_text_length = String.length parsed_text in
106 | TA.Screenshot (_,name) ->
107 let status = script#grafite_status in
108 let _,_,menv,subst,_ = status#obj in
109 let name = Filename.dirname (script#filename) ^ "/" ^ name in
111 let selected = Continuationals.Stack.head_goals status#stack in
112 List.filter (fun x,_ -> List.mem x selected) menv
114 CicMathView.screenshot status sequents menv subst name;
115 [status, parsed_text], "", parsed_text_length
117 let status = script#grafite_status in
118 let _,_,menv,subst,_ = status#obj in
120 match Continuationals.Stack.head_goals status#stack with
125 "Many goals focused. Using the context of the first one\n";
126 let _, ctx, _ = NCicUtils.lookup_meta g menv in
128 let m, s, status, t =
129 GrafiteDisambiguate.disambiguate_nterm
130 status None ctx menv subst (parsed_text,parsed_text_length,
131 NotationPt.Cast (t,NotationPt.Implicit `JustOne))
132 (* XXX use the metasenv, if possible *)
134 MatitaMathView.show_entry (`NCic (t,ctx,m,s));
135 [status, parsed_text], "", parsed_text_length
136 | TA.NIntroGuess _loc ->
137 let names_ref = ref [] in
139 NTactics.intros_tac ~names_ref [] script#grafite_status
141 let rex = Pcre.regexp ~flags:[`MULTILINE] "\\A([\\n\\t\\r ]*).*\\Z" in
142 let nl = Pcre.replace ~rex ~templ:"$1" parsed_text in
143 [s, nl ^ "#" ^ String.concat " " !names_ref ^ ";"], "", parsed_text_length
144 | TA.NAutoInteractive (_loc, (None,a)) ->
145 let trace_ref = ref [] in
148 ~params:(None,a) ~trace_ref script#grafite_status
151 try List.assoc "depth" a
154 let trace = "/"^(if int_of_string depth > 1 then depth else "")^"/ by " in
156 match !trace_ref with
160 (HExtlib.filter_map (function
161 | NotationPt.NRef r -> Some (NCicPp.r2s true r)
165 let rex = Pcre.regexp ~flags:[`MULTILINE] "\\A([\\n\\t\\r ]*).*\\Z" in
166 let nl = Pcre.replace ~rex ~templ:"$1" parsed_text in
167 [s, nl ^ trace ^ thms ^ ";"], "", parsed_text_length
168 | TA.NAutoInteractive (_, (Some _,_)) -> assert false
170 let rec eval_executable include_paths (buffer : GText.buffer) guistuff
171 grafite_status user_goal unparsed_text skipped_txt nonskipped_txt
175 ignore (buffer#move_mark (`NAME "beginning_of_statement")
176 ~where:((buffer#get_iter_at_mark (`NAME "locked"))#forward_chars
177 (Glib.Utf8.length skipped_txt))) ;
178 eval_with_engine include_paths
179 guistuff grafite_status user_goal skipped_txt nonskipped_txt
180 (TA.Executable (loc, ex))
182 MatitaTypes.Cancel -> [], "", 0
183 | GrafiteEngine.NMacro (_loc,macro) ->
184 eval_nmacro include_paths buffer guistuff grafite_status
185 user_goal unparsed_text (skipped_txt ^ nonskipped_txt) script macro
188 and eval_statement include_paths (buffer : GText.buffer) guistuff
189 grafite_status user_goal script statement
191 let st,unparsed_text =
194 if Pcre.pmatch ~rex:only_dust_RE text then raise Margin;
196 GrafiteParser.parsable_statement grafite_status
197 (Ulexing.from_utf8_string text) in
198 let ast = MatitaEngine.get_ast grafite_status include_paths strm in
200 | `Ast (st, text) -> st, text
202 let text_of_loc floc =
203 let nonskipped_txt,_ = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
204 let start, stop = HExtlib.loc_of_floc floc in
205 let floc = HExtlib.floc_of_loc (0, start) in
206 let skipped_txt,_ = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
207 let floc = HExtlib.floc_of_loc (0, stop) in
208 let txt,len = MatitaGtkMisc.utf8_parsed_text unparsed_text floc in
209 txt,nonskipped_txt,skipped_txt,len
212 | GrafiteAst.Executable (loc, ex) ->
213 let _, nonskipped, skipped, parsed_text_length = text_of_loc loc in
214 eval_executable include_paths buffer guistuff
215 grafite_status user_goal unparsed_text skipped nonskipped script ex loc
216 | GrafiteAst.Comment (loc, GrafiteAst.Code (_, ex))
217 when Helm_registry.get_bool "matita.execcomments" ->
218 let _, nonskipped, skipped, parsed_text_length = text_of_loc loc in
219 eval_executable include_paths buffer guistuff
220 grafite_status user_goal unparsed_text skipped nonskipped script ex loc
221 | GrafiteAst.Comment (loc, _) ->
222 let parsed_text, _, _, parsed_text_length = text_of_loc loc in
223 let remain_len = String.length unparsed_text - parsed_text_length in
224 let s = String.sub unparsed_text parsed_text_length remain_len in
227 eval_statement include_paths buffer guistuff
228 grafite_status user_goal script (`Raw s)
230 HExtlib.Localized (floc, exn) ->
231 HExtlib.raise_localized_exception
232 ~offset:(MatitaGtkMisc.utf8_string_length parsed_text) floc exn
233 | MultiPassDisambiguator.DisambiguationError (offset,errorll) ->
235 (MultiPassDisambiguator.DisambiguationError
236 (offset+parsed_text_length, errorll))
238 assert (text=""); (* no macros inside comments, please! *)
240 | (statuses,text)::tl ->
241 (statuses,parsed_text ^ text)::tl,"",parsed_text_length + len
244 let fresh_script_id =
248 class script ~(source_view: GSourceView2.source_view)
252 let buffer = source_view#buffer in
253 let source_buffer = source_view#source_buffer in
254 let initial_statuses current baseuri =
255 let empty_lstatus = new GrafiteDisambiguate.status in
258 NCicLibrary.time_travel
259 ((new GrafiteTypes.status current#baseuri)#set_disambiguate_db current#disambiguate_db);
260 (* CSC: there is a known bug in invalidation; temporary fix here *)
261 NCicEnvironment.invalidate ()
263 let lexicon_status = empty_lstatus in
264 let grafite_status = (new GrafiteTypes.status baseuri)#set_disambiguate_db lexicon_status#disambiguate_db in
267 let read_include_paths file =
269 let root, _buri, _fname, _tgt =
270 Librarian.baseuri_of_script ~include_paths:[] file
273 Str.split (Str.regexp " ")
274 (List.assoc "include_paths" (Librarian.load_root_file (root^"/root")))
276 List.iter (HLog.debug) rc; rc
277 with Librarian.NoRootFor _ | Not_found -> []
279 let default_buri = "cic:/matita/tests" in
280 let default_fname = ".unnamed.ma" in
282 val mutable include_paths_ = []
284 val scriptId = fresh_script_id ()
287 urichooser = urichooser;
288 ask_confirmation = ask_confirmation;
291 val mutable filename_ = (None : string option)
293 method has_name = filename_ <> None
295 method include_paths =
297 Helm_registry.get_list Helm_registry.string "matita.includes"
299 method private curdir =
301 let root, _buri, _fname, _tgt =
302 Librarian.baseuri_of_script ~include_paths:self#include_paths
306 with Librarian.NoRootFor _ -> Sys.getcwd ()
308 method buri_of_current_file =
310 | None -> default_buri
313 let _root, buri, _fname, _tgt =
314 Librarian.baseuri_of_script ~include_paths:self#include_paths f
317 with Librarian.NoRootFor _ -> default_buri
319 method filename = match filename_ with None -> default_fname | Some f -> f
322 ignore (GMain.Timeout.add ~ms:300000
323 ~callback:(fun _ -> self#_saveToBackupFile ();true));
324 ignore (buffer#connect#modified_changed
325 (fun _ -> self#set_star buffer#modified))
327 val mutable statements = [] (** executed statements *)
329 val mutable history = [ initial_statuses None default_buri ]
330 (** list of states before having executed statements. Head element of this
331 * list is the current state, last element is the state at the beginning of
333 * Invariant: this list length is 1 + length of statements *)
335 (** goal as seen by the user (i.e. metano corresponding to current tab) *)
336 val mutable userGoal = (None : int option)
338 (** text mark and tag representing locked part of a script *)
340 buffer#create_mark ~name:"locked" ~left_gravity:true buffer#start_iter
341 val beginning_of_statement_mark =
342 buffer#create_mark ~name:"beginning_of_statement"
343 ~left_gravity:true buffer#start_iter
344 val locked_tag = buffer#create_tag [`BACKGROUND "lightblue"; `EDITABLE false]
345 val error_tag = buffer#create_tag [`UNDERLINE `SINGLE; `FOREGROUND "red"]
347 method locked_mark = locked_mark
348 method locked_tag = locked_tag
349 method error_tag = error_tag
351 (* history can't be empty, the invariant above grant that it contains at
352 * least the init grafite_status *)
353 method grafite_status = match history with s::_ -> s | _ -> assert false
355 method private _advance ?statement () =
356 let s = match statement with Some s -> s | None -> self#getFuture in
357 if self#bos then LibraryClean.clean_baseuris [self#buri_of_current_file];
358 HLog.debug ("evaluating: " ^ first_line s ^ " ...");
359 let time1 = Unix.gettimeofday () in
360 let entries, newtext, parsed_len =
362 eval_statement self#include_paths buffer guistuff
363 self#grafite_status userGoal self (`Raw s)
364 with End_of_file -> raise Margin
366 let time2 = Unix.gettimeofday () in
367 HLog.debug ("... done in " ^ string_of_float (time2 -. time1) ^ "s");
368 let new_statuses, new_statements =
369 let statuses, texts = List.split entries in
372 history <- new_statuses @ history;
373 statements <- new_statements @ statements;
374 let start = buffer#get_iter_at_mark (`MARK locked_mark) in
375 let new_text = String.concat "" (List.rev new_statements) in
376 if statement <> None then
377 buffer#insert ~iter:start new_text
379 let parsed_text = String.sub s 0 parsed_len in
380 if new_text <> parsed_text then begin
381 let stop = start#copy#forward_chars (Glib.Utf8.length parsed_text) in
382 buffer#delete ~start ~stop;
383 buffer#insert ~iter:start new_text;
386 self#moveMark (Glib.Utf8.length new_text);
387 buffer#insert ~iter:(buffer#get_iter_at_mark (`MARK locked_mark)) newtext;
388 (* here we need to set the Goal in case we are going to cursor (or to
389 bottom) and we will face a macro *)
392 method private _retract offset grafite_status new_statements new_history =
393 NCicLibrary.time_travel grafite_status;
394 statements <- new_statements;
395 history <- new_history;
396 self#moveMark (- offset)
398 method advance ?statement () =
400 self#_advance ?statement ();
403 | Margin -> self#notify
404 | Not_found -> assert false
405 | Invalid_argument "Array.make" -> HLog.error "The script is too big!\n"
406 | exc -> self#notify; raise exc
410 let cmp,new_statements,new_history,grafite_status =
411 match statements,history with
412 stat::statements, _::(status::_ as history) ->
413 assert (Glib.Utf8.validate stat);
414 Glib.Utf8.length stat, statements, history, status
415 | [],[_] -> raise Margin
416 | _,_ -> assert false
418 self#_retract cmp grafite_status new_statements
422 | Margin -> self#notify
423 | Invalid_argument "Array.make" -> HLog.error "The script is too big!\n"
424 | exc -> self#notify; raise exc
426 method private getFuture =
427 let lock = buffer#get_iter_at_mark (`MARK locked_mark) in
428 let text = buffer#get_text ~start:lock ~stop:buffer#end_iter () in
431 method expandAllVirtuals =
432 let lock = buffer#get_iter_at_mark (`MARK locked_mark) in
433 let text = buffer#get_text ~start:lock ~stop:buffer#end_iter () in
434 buffer#delete ~start:lock ~stop:buffer#end_iter;
435 let text = Pcre.replace ~pat:":=" ~templ:"\\def" text in
436 let text = Pcre.replace ~pat:"->" ~templ:"\\to" text in
437 let text = Pcre.replace ~pat:"=>" ~templ:"\\Rightarrow" text in
439 Pcre.substitute_substrings
441 let pristine = Pcre.get_substring str 0 in
443 if pristine.[0] = ' ' then
444 String.sub pristine 1 (String.length pristine -1)
448 if input.[String.length input-1] = ' ' then
449 String.sub input 0 (String.length input -1)
453 if input = "\\forall" ||
454 input = "\\lambda" ||
455 input = "\\exists" then "","" else " ", " "
458 before ^ Glib.Utf8.from_unichar
459 (snd (Virtuals.symbol_of_virtual input)) ^ after
460 with Virtuals.Not_a_virtual -> pristine)
461 ~pat:" ?\\\\[a-zA-Z]+ ?" text
463 buffer#insert ~iter:lock text
465 (** @param rel_offset relative offset from current position of locked_mark *)
466 method private moveMark rel_offset =
467 let mark = `MARK locked_mark in
468 let old_insert = buffer#get_iter_at_mark `INSERT in
469 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
470 let current_mark_pos = buffer#get_iter_at_mark mark in
472 match rel_offset with
473 | 0 -> current_mark_pos
474 | n when n > 0 -> current_mark_pos#forward_chars n
475 | n (* when n < 0 *) -> current_mark_pos#backward_chars (abs n)
477 buffer#move_mark mark ~where:new_mark_pos;
478 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:new_mark_pos;
479 buffer#move_mark `INSERT old_insert;
480 let mark_position = buffer#get_iter_at_mark mark in
481 if source_view#move_mark_onscreen mark then
483 buffer#move_mark mark mark_position;
484 source_view#scroll_to_mark ~use_align:true ~xalign:1.0 ~yalign:0.1 mark;
486 while Glib.Main.pending () do ignore(Glib.Main.iteration false); done
488 method clean_dirty_lock =
489 let lock_mark_iter = buffer#get_iter_at_mark (`MARK locked_mark) in
490 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
491 buffer#apply_tag locked_tag ~start:buffer#start_iter ~stop:lock_mark_iter
493 val mutable observers = []
495 method addObserver (o: GrafiteTypes.status -> unit) =
496 observers <- o :: observers
498 method private notify =
499 let grafite_status = self#grafite_status in
500 List.iter (fun o -> o grafite_status) observers
502 method loadFromString s =
505 buffer#set_modified true
507 method loadFromFile f =
508 buffer#set_text (HExtlib.input_file f);
510 buffer#set_modified false
512 method assignFileName file =
515 (MatitaMisc.get_gui ())#main#scriptLabel#set_text default_fname;
517 include_paths_ <- [];
520 let f = Librarian.absolutize file in
521 (MatitaMisc.get_gui ())#main#scriptLabel#set_text (Filename.basename f);
523 include_paths_ <- read_include_paths f;
525 Sys.chdir self#curdir;
526 HLog.debug ("Moving to " ^ Sys.getcwd ())
529 let label = (MatitaMisc.get_gui ())#main#scriptLabel in
530 label#set_text ((if b then "*" else "") ^ Filename.basename self#filename);
531 label#misc#set_tooltip_text
532 ("URI: " ^ self#buri_of_current_file ^ "\nPATH: " ^ self#filename)
534 method saveToFile () =
535 if self#has_name then
536 let oc = open_out self#filename in
537 output_string oc (buffer#get_text ~start:buffer#start_iter
538 ~stop:buffer#end_iter ());
541 buffer#set_modified false
543 HLog.error "Can't save, no filename selected"
545 method private _saveToBackupFile () =
546 if buffer#modified then
548 let f = self#filename in
549 let oc = open_out f in
550 output_string oc (buffer#get_text ~start:buffer#start_iter
551 ~stop:buffer#end_iter ());
553 HLog.debug ("backup " ^ f ^ " saved")
556 method private reset_buffer =
558 history <- [ initial_statuses (Some self#grafite_status) self#buri_of_current_file ];
561 buffer#remove_tag locked_tag ~start:buffer#start_iter ~stop:buffer#end_iter;
562 buffer#move_mark (`MARK locked_mark) ~where:buffer#start_iter
566 source_buffer#begin_not_undoable_action ();
567 buffer#delete ~start:buffer#start_iter ~stop:buffer#end_iter;
568 source_buffer#end_not_undoable_action ();
569 buffer#set_modified false;
572 let template = HExtlib.input_file BuildTimeConf.script_template in
573 buffer#insert ~iter:(buffer#get_iter `START) template;
574 buffer#set_modified false;
577 method goto (pos: [`Top | `Bottom | `Cursor]) () =
579 let old_locked_mark =
581 (buffer#create_mark ~name:"old_locked_mark"
582 ~left_gravity:true (buffer#get_iter_at_mark (`MARK locked_mark))) in
583 let getpos _ = buffer#get_iter_at_mark (`MARK locked_mark) in
584 let getoldpos _ = buffer#get_iter_at_mark old_locked_mark in
585 let dispose_old_locked_mark () = buffer#delete_mark old_locked_mark in
588 dispose_old_locked_mark ();
595 let newpos = getpos () in
596 if (getoldpos ())#compare newpos < 0 then
598 buffer#move_mark old_locked_mark newpos;
603 dispose_old_locked_mark ();
606 | Margin -> dispose_old_locked_mark (); self#notify
607 | exc -> dispose_old_locked_mark (); self#notify; raise exc)
609 let locked_iter () = buffer#get_iter_at_mark (`NAME "locked") in
610 let cursor_iter () = buffer#get_iter_at_mark `INSERT in
613 (buffer#create_mark ~name:"initial_insert"
614 ~left_gravity:true (cursor_iter ())) in
615 let dispose_remember () = buffer#delete_mark remember in
616 let remember_iter () =
617 buffer#get_iter_at_mark (`NAME "initial_insert") in
618 let cmp () = (locked_iter ())#offset - (remember_iter ())#offset in
620 let forward_until_cursor () = (* go forward until locked > cursor *)
623 if cmp () < 0 && (getoldpos ())#compare (getpos ()) < 0
626 buffer#move_mark old_locked_mark (getpos ());
632 let rec back_until_cursor len = (* go backward until locked < cursor *)
634 statements, ((grafite_status)::_ as history)
636 self#_retract (icmp - len) grafite_status statements
638 | statement::tl1, _::tl2 ->
639 back_until_cursor (len - MatitaGtkMisc.utf8_string_length statement) (tl1,tl2)
640 | _,_ -> assert false
644 if icmp < 0 then (* locked < cursor *)
645 (forward_until_cursor (); self#notify)
646 else if icmp > 0 then (* locked > cursor *)
647 (back_until_cursor icmp (statements,history); self#notify)
648 else (* cursor = locked *)
652 dispose_old_locked_mark ();
654 | Margin -> dispose_remember (); dispose_old_locked_mark (); self#notify
655 | exc -> dispose_remember (); dispose_old_locked_mark ();
656 self#notify; raise exc)
657 with Invalid_argument "Array.make" ->
658 HLog.error "The script is too big!\n"
660 method stack = (assert false : Continuationals.Stack.t) (* MATITA 1.0 GrafiteTypes.get_stack
661 self#grafite_status *)
662 method setGoal n = userGoal <- n
663 method goal = userGoal
671 let rec is_there_only_comments lexicon_status s =
672 if Pcre.pmatch ~rex:only_dust_RE s then raise Margin;
674 GrafiteParser.parsable_statement lexicon_status
675 (Ulexing.from_utf8_string s)in
676 match GrafiteParser.parse_statement lexicon_status strm with
677 | GrafiteAst.Comment (loc,_) ->
678 let _,parsed_text_length = MatitaGtkMisc.utf8_parsed_text s loc in
679 (* CSC: why +1 in the following lines ???? *)
680 let parsed_text_length = parsed_text_length + 1 in
681 let remain_len = String.length s - parsed_text_length in
682 let next = String.sub s parsed_text_length remain_len in
683 is_there_only_comments lexicon_status next
684 | GrafiteAst.Executable _ -> false
686 try is_there_only_comments self#grafite_status self#getFuture
688 | NCicLibrary.IncludedFileNotCompiled _
689 | HExtlib.Localized _
690 | CicNotationParser.Parse_error _ -> false
691 | Margin | End_of_file -> true
692 | Invalid_argument "Array.make" -> false
696 HLog.debug "script status:";
697 HLog.debug ("history size: " ^ string_of_int (List.length history));
698 HLog.debug (sprintf "%d statements:" (List.length statements));
699 List.iter HLog.debug statements;
700 HLog.debug ("Current file name: " ^ self#filename);
703 let _script = ref None
705 let script ~source_view ~urichooser ~ask_confirmation ()
707 let s = new script ~source_view ~ask_confirmation ~urichooser () in
711 let current () = match !_script with None -> assert false | Some s -> s
714 CicMathView.register_matita_script_current (current :> unit -> < advance: ?statement:string -> unit -> unit; grafite_status: GrafiteTypes.status; setGoal: int option -> unit >)