LSP specification implementation status

Text Document Capabilities

• ✅ synchronization
  • ✅ didOpen
  • ✅ didChange
    • ✅ Full text sync
    • ✅ Incremental text sync
  • ✅ willSave
  • ✅ willSaveWaitUntil
  • ✅ didSave
    • ✅ Include text
  • ✅ didClose
• ✅ completion
  • ✅ snippet support
  • ❌ commit characters support
  • ✅ documentation (both static and from completionItem/resolve)
  • ✅ deprecated support
  • ❌ preselect support
  • ✅ tag support
  • ✅ insertReplace support
  • ✅ resolve support (detail, documentation, additionalTextEdits)
  • ✅ insertText
  • ✅ labelDetails support
  • ❌ context support
  • ✅ textEdit
  • ❌ prefix filter textEdit
  • ✅ Run command after inserting completion
• ✅ hover
• ✅ signatureHelp
  • ✅ context support
• ✅ declaration
  • ✅ link support
• ✅ definition
  • ✅ link support
• ✅ typeDefinition
  • ✅ link support
• ✅ implementation
  • ✅ link support
• ✅ references
• ✅ documentHighlight
• ✅ documentSymbol
• ✅ codeAction
  • ✅ resolve
• ✅ codeLens (only when backed by a helper package)
• ✅ documentLink
  • ✅ resolve
• ✅ colorProvider
  • ✅ colorPresentation
  • ❌ color picker #1291
• ✅ formatting
• ✅ rangeFormatting
  • ✅ rangesSupport
• ❌ onTypeFormatting
• ✅ rename
• ✅ publishDiagnostics
• ✅ foldingRange (partly supported, no fold buttons in the gutter: sublimehq/sublime_text#3389)
• ✅ selectionRange
• ❌ linkedEditingRange
• ✅ callHierarchy
• ✅ semanticTokens (sublimehq/sublime_text#817)
• ✅ typeHierarchy
• ✅ inlineHint
• ✅ diagnostic (Pull Diagnostics)

Workspace Capabilities

• ✅ applyEdit
• ✅ workspaceEdit
  • ✅ documentChanges
  • ❌ resourceOperations
  • ❌ failureHandling
• ✅ didChangeConfiguration
• ❌ didChangeWatchedFiles #892, sublimehq/sublime_text#2669
• ✅ symbol
• ✅ executeCommand
• ✅ workspaceFolders
• ✅ configuration
• ✅ semanticTokens (refresh)
• ✅ codeLens (refresh)
• ❌ fileOperations
• ✅ inlayHint (refresh)
• ✅ diagnostics (workspace diagnostic request)
• ✅ diagnostics (refresh)

Window Capabilities

• ✅ workDoneProgress
  • ✅ create
  • ❌ cancel
• ✅ showMessage
• ✅ showDocument

Dynamic Registration

✅ Fully implemented