package vscoq-language-server
VSCoq language server
Install
Dune Dependency
Authors
Maintainers
Sources
vscoq-language-server-2.2.1.tar.gz
md5=06737aa7d96bbf42f89db3c86ef3e4dd
sha512=5118f26e5b687bc918de3409870464702f3fafc0c775ad5fac4835fc7954df66beaf83bc3a413476176160773215aae1d292816c49dc192c94566bba0fbe5a5b
doc/src/vscoq-language-server.dm/document.ml.html
Source file document.ml
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(**************************************************************************) (* *) (* VSCoq *) (* *) (* Copyright INRIA and contributors *) (* (see version control and README file for authors & dates) *) (* *) (**************************************************************************) (* *) (* This file is distributed under the terms of the MIT License. *) (* See LICENSE file. *) (* *) (**************************************************************************) open Gramlib open Types open Lsp.Types open Scheduler let Log log = Log.mk_log "document" module LM = Map.Make (Int) module SM = Map.Make (Stateid) type proof_block_type = | TheoremKind of Decls.theorem_kind | DefinitionType of Decls.definition_object_kind | Other type outline_element = { id: sentence_id; name: string; type_: proof_block_type; statement: string; range: Range.t } type outline = outline_element list type parsed_ast = { ast: Synterp.vernac_control_entry; classification: Vernacextend.vernac_classification; tokens: Tok.t list } type pre_sentence = { parsing_start : int; start : int; stop : int; synterp_state : Vernacstate.Synterp.t; (* synterp state after this sentence's synterp phase *) ast : parsed_ast; } (* Example: *) (* " Check 3. " *) (* ^ ^ ^---- end *) (* | |------------ start *) (* |---------------- parsing_start *) type sentence = { parsing_start : int; start : int; stop : int; synterp_state : Vernacstate.Synterp.t; (* synterp state after this sentence's synterp phase *) scheduler_state_before : Scheduler.state; scheduler_state_after : Scheduler.state; ast : parsed_ast; id : sentence_id; } type comment = { start: int; stop: int; content: string; } type parsing_error = { start: int; stop: int; msg: string Loc.located; qf: Quickfix.t list option; } type document = { sentences_by_id : sentence SM.t; sentences_by_end : sentence LM.t; parsing_errors_by_end : parsing_error LM.t; comments_by_end : comment LM.t; schedule : Scheduler.schedule; outline : outline; parsed_loc : int; raw_doc : RawDocument.t; init_synterp_state : Vernacstate.Synterp.t; } let range_of_sentence raw (sentence : sentence) = let start = RawDocument.position_of_loc raw sentence.start in let end_ = RawDocument.position_of_loc raw sentence.stop in Range.{ start; end_ } let range_of_sentence_with_blank_space raw (sentence : sentence) = let start = RawDocument.position_of_loc raw sentence.parsing_start in let end_ = RawDocument.position_of_loc raw sentence.stop in Range.{ start; end_ } let range_of_id document id = match SM.find_opt id document.sentences_by_id with | None -> CErrors.anomaly Pp.(str"Trying to get range of non-existing sentence " ++ Stateid.print id) | Some sentence -> range_of_sentence document.raw_doc sentence let range_of_id_with_blank_space document id = match SM.find_opt id document.sentences_by_id with | None -> CErrors.anomaly Pp.(str"Trying to get range of non-existing sentence " ++ Stateid.print id) | Some sentence -> range_of_sentence_with_blank_space document.raw_doc sentence let record_outline document id (ast : Synterp.vernac_control_entry) classif (outline : outline) = let open Vernacextend in match classif with | VtStartProof (_, names) -> let vernac_gen_expr = ast.v.expr in let type_, statement = match vernac_gen_expr with | VernacSynterp _ -> None, "" | VernacSynPure pure -> match pure with | Vernacexpr.VernacStartTheoremProof (kind, _) -> Some (TheoremKind kind), "theorem" | Vernacexpr.VernacDefinition ((_, def), _, _) -> Some (DefinitionType def), "definition" | _ -> None, "" in let name = match names with |[] -> "default" | n :: _ -> Names.Id.to_string n in begin match type_ with | None -> outline | Some type_ -> let range = range_of_id document id in let element = {id; type_; name; statement; range} in element :: outline end | VtSideff (names, _) -> let vernac_gen_expr = ast.v.expr in let type_, statement = match vernac_gen_expr with | VernacSynterp (Synterp.EVernacExtend _) when names <> [] -> Some Other, "external" | VernacSynterp _ -> None, "" | VernacSynPure pure -> match pure with | Vernacexpr.VernacStartTheoremProof (kind, _) -> Some (TheoremKind kind), "theroem" | Vernacexpr.VernacDefinition ((_, def), _, _) -> Some (DefinitionType def), "definition" | _ -> None, "" in let name = match names with |[] -> "default" | n :: _ -> Names.Id.to_string n in begin match type_ with | None -> outline | Some type_ -> let range = range_of_id document id in let element = {id; type_; name; statement; range} in element :: outline end | _ -> outline let schedule doc = doc.schedule let raw_document doc = doc.raw_doc let outline doc = doc.outline let parse_errors parsed = List.map snd (LM.bindings parsed.parsing_errors_by_end) let add_sentence parsed parsing_start start stop (ast: parsed_ast) synterp_state scheduler_state_before = let id = Stateid.fresh () in let ast' = (ast.ast, ast.classification, synterp_state) in let scheduler_state_after, schedule = Scheduler.schedule_sentence (id, ast') scheduler_state_before parsed.schedule in (* FIXME may invalidate scheduler_state_XXX for following sentences -> propagate? *) let sentence = { parsing_start; start; stop; ast; id; synterp_state; scheduler_state_before; scheduler_state_after } in let document = { parsed with sentences_by_end = LM.add stop sentence parsed.sentences_by_end; sentences_by_id = SM.add id sentence parsed.sentences_by_id; schedule; } in let outline = record_outline document id ast.ast ast.classification parsed.outline in {document with outline}, scheduler_state_after let remove_sentence parsed id = match SM.find_opt id parsed.sentences_by_id with | None -> parsed | Some sentence -> let sentences_by_id = SM.remove id parsed.sentences_by_id in let sentences_by_end = LM.remove sentence.stop parsed.sentences_by_end in let outline = List.filter (fun (e : outline_element) -> e.id != id) parsed.outline in (* TODO clean up the schedule and free cached states *) { parsed with sentences_by_id; sentences_by_end; outline } let sentences parsed = List.map snd @@ SM.bindings parsed.sentences_by_id type code_line = | Sentence of sentence | ParsingError of parsing_error | Comment of comment let start_of_code_line = function | Sentence { start = x } -> x | ParsingError { start = x } -> x | Comment { start = x } -> x let compare_code_line x y = let s1 = start_of_code_line x in let s2 = start_of_code_line y in s1 - s2 let code_lines_sorted_by_loc parsed = List.sort compare_code_line @@ List.concat [ (List.map (fun (_,x) -> Sentence x) @@ SM.bindings parsed.sentences_by_id) ; (List.map (fun (_,x) -> ParsingError x) @@ LM.bindings parsed.parsing_errors_by_end) ; [] (* todo comments *) ] let code_lines_by_end_sorted_by_loc parsed = List.sort compare_code_line @@ List.concat [ (List.map (fun (_,x) -> Sentence x) @@ LM.bindings parsed.sentences_by_end) ; (List.map (fun (_,x) -> ParsingError x) @@ LM.bindings parsed.parsing_errors_by_end) ; [] (* todo comments *) ] let sentences_sorted_by_loc parsed = List.sort (fun ({start = s1} : sentence) {start = s2} -> s1 - s2) @@ List.map snd @@ SM.bindings parsed.sentences_by_id let sentences_before parsed loc = let (before,ov,_after) = LM.split loc parsed.sentences_by_end in let before = Option.cata (fun v -> LM.add loc v before) before ov in List.map (fun (_id,s) -> s) @@ LM.bindings before let sentences_after parsed loc = let (_before,ov,after) = LM.split loc parsed.sentences_by_end in let after = Option.cata (fun v -> LM.add loc v after) after ov in List.map (fun (_id,s) -> s) @@ LM.bindings after let parsing_errors_before parsed loc = LM.filter (fun stop _v -> stop <= loc) parsed.parsing_errors_by_end let comments_before parsed loc = LM.filter (fun stop _v -> stop <= loc) parsed.comments_by_end let get_sentence parsed id = SM.find_opt id parsed.sentences_by_id let find_sentence parsed loc = match LM.find_first_opt (fun k -> loc <= k) parsed.sentences_by_end with | Some (_, sentence) when sentence.start <= loc -> Some sentence | _ -> None let find_sentence_before parsed loc = match LM.find_last_opt (fun k -> k <= loc) parsed.sentences_by_end with | Some (_, sentence) -> Some sentence | _ -> None let find_sentence_strictly_before parsed loc = match LM.find_last_opt (fun k -> k < loc) parsed.sentences_by_end with | Some (_, sentence) -> Some sentence | _ -> None let find_sentence_after parsed loc = match LM.find_first_opt (fun k -> loc <= k) parsed.sentences_by_end with | Some (_, sentence) -> Some sentence | _ -> None let find_next_qed parsed loc = let exception Found of sentence in let f k sentence = if loc <= k then match sentence.ast.classification with | VtQed _ -> raise (Found sentence) | _ -> () in (* We can't use find_first since f isn't monotone *) match LM.iter f parsed.sentences_by_end with | () -> None | exception (Found n) -> Some n let get_first_sentence parsed = Option.map snd @@ LM.find_first_opt (fun _ -> true) parsed.sentences_by_end let get_last_sentence parsed = Option.map snd @@ LM.find_last_opt (fun _ -> true) parsed.sentences_by_end let state_after_sentence parsed = function | Some (stop, { synterp_state; scheduler_state_after }) -> (stop, synterp_state, scheduler_state_after) | None -> (-1, parsed.init_synterp_state, Scheduler.initial_state) let state_at_pos parsed pos = state_after_sentence parsed @@ LM.find_last_opt (fun stop -> stop <= pos) parsed.sentences_by_end let state_strictly_before parsed pos = state_after_sentence parsed @@ LM.find_last_opt (fun stop -> stop < pos) parsed.sentences_by_end let pos_at_end parsed = match LM.max_binding_opt parsed.sentences_by_end with | Some (stop, _) -> stop | None -> -1 let string_of_parsed_ast { tokens } = (* TODO implement printer for vernac_entry *) "[" ^ String.concat "--" (List.map (Tok.extract_string false) tokens) ^ "]" let patch_sentence parsed scheduler_state_before id ({ parsing_start; ast; start; stop; synterp_state } : pre_sentence) = let old_sentence = SM.find id parsed.sentences_by_id in log @@ Format.sprintf "Patching sentence %s , %s" (Stateid.to_string id) (string_of_parsed_ast old_sentence.ast); let scheduler_state_after, schedule = let ast = (ast.ast, ast.classification, synterp_state) in Scheduler.schedule_sentence (id,ast) scheduler_state_before parsed.schedule in let new_sentence = { old_sentence with ast; parsing_start; start; stop; scheduler_state_before; scheduler_state_after } in let sentences_by_id = SM.add id new_sentence parsed.sentences_by_id in let sentences_by_end = match LM.find_opt old_sentence.stop parsed.sentences_by_end with | Some { id } when Stateid.equal id new_sentence.id -> LM.remove old_sentence.stop parsed.sentences_by_end | _ -> parsed.sentences_by_end in let sentences_by_end = LM.add new_sentence.stop new_sentence sentences_by_end in { parsed with sentences_by_end; sentences_by_id; schedule }, scheduler_state_after type diff = | Deleted of sentence_id list | Added of pre_sentence list | Equal of (sentence_id * pre_sentence) list let same_tokens (s1 : sentence) (s2 : pre_sentence) = CList.equal Tok.equal s1.ast.tokens s2.ast.tokens (* TODO improve diff strategy (insertions,etc) *) let rec diff old_sentences new_sentences = match old_sentences, new_sentences with | [], [] -> [] | [], new_sentences -> [Added new_sentences] | old_sentences, [] -> [Deleted (List.map (fun s -> s.id) old_sentences)] (* FIXME something special should be done when `Deleted` is applied to a parsing effect *) | old_sentence::old_sentences, new_sentence::new_sentences -> if same_tokens old_sentence new_sentence then Equal [(old_sentence.id,new_sentence)] :: diff old_sentences new_sentences else Deleted [old_sentence.id] :: Added [new_sentence] :: diff old_sentences new_sentences let string_of_diff_item doc = function | Deleted ids -> ids |> List.map (fun id -> Printf.sprintf "- (id: %d) %s" (Stateid.to_int id) (string_of_parsed_ast (Option.get (get_sentence doc id)).ast)) | Added sentences -> sentences |> List.map (fun (s : pre_sentence) -> Printf.sprintf "+ %s" (string_of_parsed_ast s.ast)) | Equal l -> l |> List.map (fun (id, (s : pre_sentence)) -> Printf.sprintf "= (id: %d) %s" (Stateid.to_int id) (string_of_parsed_ast s.ast)) let string_of_diff doc l = String.concat "\n" (List.flatten (List.map (string_of_diff_item doc) l)) let rec stream_tok n_tok acc str begin_line begin_char = let e = LStream.next (Pcoq.get_keyword_state ()) str in if Tok.(equal e EOI) then List.rev acc else stream_tok (n_tok+1) (e::acc) str begin_line begin_char (* let parse_one_sentence stream ~st = let pa = Pcoq.Parsable.make stream in Vernacstate.Parser.parse st (Pvernac.main_entry (Some (Vernacinterp.get_default_proof_mode ()))) pa (* FIXME: handle proof mode correctly *) *) [%%if coq = "8.18" || coq = "8.19"] let parse_one_sentence ?loc stream ~st = Vernacstate.Synterp.unfreeze st; let entry = Pvernac.main_entry (Some (Synterp.get_default_proof_mode ())) in let pa = Pcoq.Parsable.make ?loc stream in let sentence = Pcoq.Entry.parse entry pa in (sentence, []) [%%else] let parse_one_sentence ?loc stream ~st = Vernacstate.Synterp.unfreeze st; Flags.record_comments := true; let entry = Pvernac.main_entry (Some (Synterp.get_default_proof_mode ())) in let pa = Pcoq.Parsable.make ?loc stream in let sentence = Pcoq.Entry.parse entry pa in let comments = Pcoq.Parsable.comments pa in (sentence, comments) [%%endif] let rec junk_sentence_end stream = match Stream.npeek () 2 stream with | ['.'; (' ' | '\t' | '\n' |'\r')] -> Stream.junk () stream | [] -> () | _ -> Stream.junk () stream; junk_sentence_end stream [%%if coq = "8.18"] exception E = Stream.Error [%%else] exception E = Grammar.Error [%%endif] [%%if coq = "8.18" || coq = "8.19"] let get_loc_from_info_or_exn e info = match e with | Synterp.UnmappedLibrary (_, qid) -> qid.loc | Synterp.NotFoundLibrary (_, qid) -> qid.loc | _ -> Loc.get_loc @@ info [%%else] let get_loc_from_info_or_exn _ info = Loc.get_loc info (* let get_qf_from_info info = Quickfix.get_qf info *) [%%endif] [%%if coq = "8.18" || coq = "8.19"] let get_entry ast = Synterp.synterp_control ast [%%else] let get_entry ast = let intern = Vernacinterp.fs_intern in Synterp.synterp_control ~intern ast [%%endif] let rec parse_more ?loc synterp_state stream raw parsed parsed_comments errors = let handle_parse_error start msg qf = log @@ "handling parse error at " ^ string_of_int start; let stop = Stream.count stream in let parsing_error = { msg; start; stop; qf} in let errors = parsing_error :: errors in (* TODO: we could count the \n between start and stop and increase Loc.line_nb *) parse_more ?loc synterp_state stream raw parsed parsed_comments errors in let start = Stream.count stream in log @@ "Start of parse is: " ^ (string_of_int start); begin (* FIXME should we save lexer state? *) match parse_one_sentence ?loc stream ~st:synterp_state with | None, _ (* EOI *) -> List.rev parsed, errors, List.rev parsed_comments | Some ast, comments -> let stop = Stream.count stream in log @@ "Parsed: " ^ (Pp.string_of_ppcmds @@ Ppvernac.pr_vernac ast); let begin_line, begin_char, end_char = match ast.loc with | Some lc -> lc.line_nb, lc.bp, lc.ep | None -> assert false in let str = String.sub (RawDocument.text raw) begin_char (end_char - begin_char) in let sstr = Stream.of_string str in let lex = CLexer.Lexer.tok_func sstr in let tokens = stream_tok 0 [] lex begin_line begin_char in begin try let entry = get_entry ast in let classification = Vernac_classifier.classify_vernac ast in let synterp_state = Vernacstate.Synterp.freeze () in let sentence = { parsing_start = start; ast = { ast = entry; classification; tokens }; start = begin_char; stop; synterp_state } in let parsed = sentence :: parsed in let comments = List.map (fun ((start, stop), content) -> {start; stop; content}) comments in let parsed_comments = List.append comments parsed_comments in parse_more ?loc:ast.loc synterp_state stream raw parsed parsed_comments errors with exn -> let e, info = Exninfo.capture exn in let loc = get_loc_from_info_or_exn e info in let qf = Result.value ~default:[] @@ Quickfix.from_exception e in handle_parse_error start (loc, Pp.string_of_ppcmds @@ CErrors.iprint_no_report (e,info)) (Some qf) end | exception (E msg as exn) -> let loc = Loc.get_loc @@ Exninfo.info exn in let qf = Result.value ~default:[] @@ Quickfix.from_exception exn in junk_sentence_end stream; handle_parse_error start (loc,msg) (Some qf) | exception (CLexer.Error.E e as exn) -> (* May be more problematic to handle for the diff *) let loc = Loc.get_loc @@ Exninfo.info exn in let qf = Result.value ~default:[] @@ Quickfix.from_exception exn in junk_sentence_end stream; handle_parse_error start (loc,CLexer.Error.to_string e) (Some qf) | exception exn -> let e, info = Exninfo.capture exn in let loc = Loc.get_loc @@ info in let qf = Result.value ~default:[] @@ Quickfix.from_exception exn in junk_sentence_end stream; handle_parse_error start (loc, "Unexpected parse error: " ^ Pp.string_of_ppcmds @@ CErrors.iprint_no_report (e,info)) (Some qf) end let parse_more synterp_state stream raw = parse_more synterp_state stream raw [] [] [] let rec unchanged_id id = function | [] -> id | Equal s :: diffs -> unchanged_id (List.fold_left (fun _ (id,_) -> Some id) id s) diffs | (Added _ | Deleted _) :: _ -> id let invalidate top_edit top_id parsed_doc new_sentences = let rec invalidate_diff parsed_doc scheduler_state invalid_ids = function | [] -> invalid_ids, parsed_doc | Equal s :: diffs -> let patch_sentence (parsed_doc,scheduler_state) (id,new_s) = patch_sentence parsed_doc scheduler_state id new_s in let parsed_doc, scheduler_state = List.fold_left patch_sentence (parsed_doc, scheduler_state) s in invalidate_diff parsed_doc scheduler_state invalid_ids diffs | Deleted ids :: diffs -> let invalid_ids = List.fold_left (fun ids id -> Stateid.Set.add id ids) invalid_ids ids in let parsed_doc = List.fold_left remove_sentence parsed_doc ids in (* FIXME update scheduler state, maybe invalidate after diff zone *) invalidate_diff parsed_doc scheduler_state invalid_ids diffs | Added new_sentences :: diffs -> (* FIXME could have side effect on the following, unchanged sentences *) let add_sentence (parsed_doc,scheduler_state) ({ parsing_start; start; stop; ast; synterp_state } : pre_sentence) = add_sentence parsed_doc parsing_start start stop ast synterp_state scheduler_state in let parsed_doc, scheduler_state = List.fold_left add_sentence (parsed_doc,scheduler_state) new_sentences in invalidate_diff parsed_doc scheduler_state invalid_ids diffs in let (_,_synterp_state,scheduler_state) = state_at_pos parsed_doc top_edit in let sentence_strings = LM.bindings @@ LM.map (fun s -> string_of_parsed_ast s.ast) parsed_doc.sentences_by_end in let sentence_strings = List.map (fun s -> snd s) sentence_strings in let sentence_string = String.concat " " sentence_strings in let sentence_strings_id = SM.bindings @@ SM.map (fun s -> string_of_parsed_ast s.ast) parsed_doc.sentences_by_id in let sentence_strings_id = List.map (fun s -> snd s) sentence_strings_id in let sentence_string_id = String.concat " " sentence_strings_id in log @@ Format.sprintf "Top edit: %i, Doc: %s, Doc by id: %s" top_edit sentence_string sentence_string_id; let old_sentences = sentences_after parsed_doc top_edit in let diff = diff old_sentences new_sentences in let unchanged_id = unchanged_id top_id diff in log @@ "diff:\n" ^ string_of_diff parsed_doc diff; let invalid_ids, doc = invalidate_diff parsed_doc scheduler_state Stateid.Set.empty diff in unchanged_id, invalid_ids, doc (** Validate document when raw text has changed *) let validate_document ({ parsed_loc; raw_doc; } as document) = (* We take the state strictly before parsed_loc to cover the case when the end of the sentence is editted *) let (stop, synterp_state, _scheduler_state) = state_strictly_before document parsed_loc in (* let top_id = find_sentence_strictly_before document parsed_loc with None -> Top | Some sentence -> Id sentence.id in *) let top_id = Option.map (fun sentence -> sentence.id) (find_sentence_strictly_before document parsed_loc) in let text = RawDocument.text raw_doc in let stream = Stream.of_string text in while Stream.count stream < stop do Stream.junk () stream done; log @@ Format.sprintf "Parsing more from pos %i" stop; let errors = parsing_errors_before document stop in let comments = comments_before document stop in let new_sentences, new_errors, new_comments = parse_more synterp_state stream raw_doc (* TODO invalidate first *) in log @@ Format.sprintf "%i new sentences" (List.length new_sentences); log @@ Format.sprintf "%i new comments" (List.length new_comments); let unchanged_id, invalid_ids, document = invalidate (stop+1) top_id document new_sentences in let parsing_errors_by_end = List.fold_left (fun acc (error : parsing_error) -> LM.add error.stop error acc) errors new_errors in let comments_by_end = List.fold_left (fun acc (comment : comment) -> LM.add comment.stop comment acc) comments new_comments in let parsed_loc = pos_at_end document in unchanged_id, invalid_ids, { document with parsed_loc; parsing_errors_by_end; comments_by_end} let create_document init_synterp_state text = let raw_doc = RawDocument.create text in { parsed_loc = -1; raw_doc; sentences_by_id = SM.empty; sentences_by_end = LM.empty; parsing_errors_by_end = LM.empty; comments_by_end = LM.empty; schedule = initial_schedule; outline = []; init_synterp_state; } let apply_text_edit document edit = let raw_doc, start = RawDocument.apply_text_edit document.raw_doc edit in let parsed_loc = min document.parsed_loc start in { document with raw_doc; parsed_loc } let apply_text_edits document edits = let doc' = { document with raw_doc = document.raw_doc } in List.fold_left apply_text_edit doc' edits module Internal = struct let string_of_sentence sentence = Format.sprintf "[%s] %s (%i -> %i)" (Stateid.to_string sentence.id) (string_of_parsed_ast sentence.ast) sentence.start sentence.stop let string_of_error error = let (_, str) = error.msg in Format.sprintf "[parsing error] [%s] (%i -> %i)" str error.start error.stop let string_of_item = function | Sentence sentence -> string_of_sentence sentence | Comment _ -> "(* comment *)" | ParsingError error -> string_of_error error end
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