clerk/internal/lsp/textdocument_sync.go (view raw)
| 1 | package lsp |
| 2 | |
| 3 | import ( |
| 4 | "context" |
| 5 | "strconv" |
| 6 | |
| 7 | "go.lsp.dev/protocol" |
| 8 | "go.lsp.dev/uri" |
| 9 | |
| 10 | "olexsmir.xyz/clerk/internal/analyzer" |
| 11 | "olexsmir.xyz/clerk/internal/lsp/lsputil" |
| 12 | "olexsmir.xyz/clerk/journal" |
| 13 | "olexsmir.xyz/clerk/journal/ast" |
| 14 | "olexsmir.xyz/clerk/journal/lexer" |
| 15 | "olexsmir.xyz/clerk/journal/parser" |
| 16 | ) |
| 17 | |
| 18 | func (s *server) DidOpen(ctx context.Context, params *protocol.DidOpenTextDocumentParams) error { |
| 19 | s.openDoc(params.TextDocument.URI, params.TextDocument.Text, params.TextDocument.Version, params.TextDocument.LanguageID) |
| 20 | s.scheduleDiagnostics(ctx) |
| 21 | return nil |
| 22 | } |
| 23 | |
| 24 | func (s *server) DidChange(ctx context.Context, params *protocol.DidChangeTextDocumentParams) error { |
| 25 | s.updateDoc(params.TextDocument.URI, params.TextDocument.Version, params.ContentChanges) |
| 26 | s.scheduleDiagnostics(ctx) |
| 27 | return nil |
| 28 | } |
| 29 | |
| 30 | func (s *server) DidClose(ctx context.Context, params *protocol.DidCloseTextDocumentParams) error { |
| 31 | u := params.TextDocument.URI |
| 32 | s.closeDoc(u) |
| 33 | s.loader.Evict(u.Path()) |
| 34 | |
| 35 | // clear closed doc's diagnostics; dependents rebuild from disk since the buffer text is gone. |
| 36 | s.markDependentsDirty(u) |
| 37 | if err := s.client.PublishDiagnostics(ctx, &protocol.PublishDiagnosticsParams{ |
| 38 | URI: u, |
| 39 | Diagnostics: []protocol.Diagnostic{}, |
| 40 | }); err != nil { |
| 41 | s.log.Warn("clear diagnostics failed", "uri", u, "err", err) |
| 42 | } |
| 43 | |
| 44 | s.scheduleDiagnostics(ctx) |
| 45 | return nil |
| 46 | } |
| 47 | |
| 48 | func (s *server) DidSave(ctx context.Context, params *protocol.DidSaveTextDocumentParams) error { |
| 49 | return nil |
| 50 | } |
| 51 | |
| 52 | // Document management |
| 53 | |
| 54 | type docState struct { |
| 55 | text string |
| 56 | version int32 |
| 57 | languageID protocol.LanguageKind |
| 58 | paths map[string]bool // canonical paths of every file in the cached analysis |
| 59 | lineIdx *lsputil.LineIndex // cached line index for the text |
| 60 | |
| 61 | analysis *analyzer.Analysis // cached analysis, nil until first build |
| 62 | dirty bool // true while the cached analysis may not reflect the current text |
| 63 | |
| 64 | semTokens []semanticToken // cached tokens for the current text |
| 65 | semBaseline []uint32 // encoded data of the last response; diff baseline for the next delta request |
| 66 | semGen uint64 // semantic token generation, increments per response; 0 before the first |
| 67 | } |
| 68 | |
| 69 | func (d *docState) resultID() string { return strconv.FormatUint(d.semGen, 10) } |
| 70 | func (d *docState) nextResultID() string { |
| 71 | d.semGen++ |
| 72 | return d.resultID() |
| 73 | } |
| 74 | |
| 75 | func (s *server) openDoc(u uri.URI, text string, version int32, langID protocol.LanguageKind) { |
| 76 | s.mu.Lock() |
| 77 | s.openDocs[u] = docState{ |
| 78 | text: text, |
| 79 | version: version, |
| 80 | languageID: langID, |
| 81 | lineIdx: lsputil.NewLineIndex(text), |
| 82 | dirty: true, |
| 83 | } |
| 84 | s.mu.Unlock() |
| 85 | } |
| 86 | |
| 87 | func (s *server) updateDoc(u uri.URI, version int32, changes []protocol.TextDocumentContentChangeEvent) { |
| 88 | s.mu.Lock() |
| 89 | state, ok := s.openDocs[u] |
| 90 | if !ok { |
| 91 | s.mu.Unlock() |
| 92 | return |
| 93 | } |
| 94 | state.version = version |
| 95 | for _, ch := range changes { |
| 96 | switch ev := ch.(type) { |
| 97 | case *protocol.TextDocumentContentChangeWholeDocument: |
| 98 | state.text = ev.Text |
| 99 | state.semTokens = nil |
| 100 | state.lineIdx = lsputil.NewLineIndex(ev.Text) |
| 101 | case *protocol.TextDocumentContentChangePartial: |
| 102 | _ = ev // TODO: incremental edit support |
| 103 | } |
| 104 | } |
| 105 | state.analysis = nil |
| 106 | state.dirty = true |
| 107 | s.openDocs[u] = state |
| 108 | s.mu.Unlock() |
| 109 | |
| 110 | s.markDependentsDirty(u) |
| 111 | } |
| 112 | |
| 113 | // markDependentsDirty dirties every open doc whose cached analysis includes u, |
| 114 | // e.g. after u is edited or closed. |
| 115 | func (s *server) markDependentsDirty(u uri.URI) { |
| 116 | canon := journal.CanonicalPath(u.Path()) |
| 117 | s.mu.Lock() |
| 118 | for du, dstate := range s.openDocs { |
| 119 | if dstate.paths[canon] { |
| 120 | dstate.dirty = true |
| 121 | s.openDocs[du] = dstate |
| 122 | } |
| 123 | } |
| 124 | s.mu.Unlock() |
| 125 | } |
| 126 | |
| 127 | func (s *server) getDocState(u uri.URI) (docState, bool) { |
| 128 | s.mu.RLock() |
| 129 | state, ok := s.openDocs[u] |
| 130 | s.mu.RUnlock() |
| 131 | return state, ok |
| 132 | } |
| 133 | |
| 134 | func (s *server) closeDoc(u uri.URI) { |
| 135 | s.mu.Lock() |
| 136 | delete(s.openDocs, u) |
| 137 | s.mu.Unlock() |
| 138 | } |
| 139 | |
| 140 | func parseJournalStr(content string) *ast.Journal { |
| 141 | l := lexer.New("", []byte(content)) |
| 142 | p := parser.New(l) |
| 143 | return p.ParseJournal() |
| 144 | } |