notpushkin / lsps

Use Language Servers with in-browser editors. Monorepo of editor agnostic packages and CodeMirror client.

LSPs

Monorepo of packages related to LSP.

Packages

• @qualified/vscode-jsonrpc-ws
  • Create VSCode JSON RPC MessageConnection over WebSocket
• @qualified/vscode-jsonrpc-ww
  • Create VSCode JSON RPC MessageConnection to Web Worker
• @qualified/lsp-connection
  • VSCode JSON RPC MessageConnection wrapper for LSP messages
• @qualified/codemirror-workspace
  • Provides intelligence to CodeMirror editors

Demo

Example with Rust Analyzer:

The styling definitely needs work, but the above shows:

• Realtime diagnostics
• Completion with items from the server
• Fuzzy matching (e.g., prl to println!)
• Completion items with Markdown docs
• Completion items with icons for each kind
• Hover information with Markdown docs

Simple snippets are supported as well:

See examples/rust-analyzer to run this locally.

See examples/rust-analyzer-sync to run this locally with an ability to save the changes to disk.

See examples/web-worker for an example with simple JSON Language Server running in Web Worker. A live demo is also available at https://qualified.github.io/lsps/.

See examples/html-css-ts for a simple demo project with TypeScript + CSS + HTML editors.

Tools

• lsp-ws-proxy: WebSocketify any Language Server. lsp-ws-proxy -- langserver --stdio

Capabilities

Text Document

• synchronization
  • didOpen
  • didChange
    • Full text change
    • Incremental text change
  • willSave
  • willSaveWaitUntil
  • didSave
  • didClose
• completion
  • insertText
  • additionalTextEdits
  • textEdit
  • InsertTextFormat.Snippet
  • documentation
  • command
  • tags
• hover
• signatureHelp
• Goto
  • declaration
  • definition
  • typeDefinition
  • implementation
• references
• documentHighlight
• documentSymbol
• codeAction
• codeLens
• documentLink
• colorProvider
• Formatting
  • formatting
  • rangeFormatting
  • onTypeFormatting
• rename
• foldingRange
• selectionRange
• publishDiagnostics
• callHierarchy

Workspace

• applyEdit
• workspaceEdit
• didChangeConfiguration
• didChangeWatchedFiles
• symbol
• executeCommand

Window

• workDoneProgress

License

MIT