Code actions lightbulb in VS Code

Roslyn-powered code actions in the alpha VS Code extension.

Refactoring & Code Actions

SharpLsp routes code actions through Roslyn. When the cursor is on a supported symbol, diagnostic, or selection, VS Code can show a lightbulb offering quick fixes and refactorings sourced from Roslyn.

Triggering Code Actions

  • Lightbulb: click the πŸ’‘ icon that appears in the editor gutter
  • Keyboard: Ctrl+. (Windows/Linux) or Cmd+. (macOS)
  • Quick Fix: position the cursor on a diagnostic squiggle and press the shortcut above

Available Actions

SharpLsp is building toward broad Roslyn code action coverage, including:

Category Examples
Quick fixes Add missing using, implement interface, add null check
Refactorings Rename, extract method, extract variable, inline variable
Style Convert to expression body, add/remove braces, use pattern matching
Generate Generate constructor, generate property, generate override

Performance Targets

Metric Target
Code action list <200ms p50
Apply fix <100ms

Related Documentation

Architecture How SharpLsp Works The three-tier Rust host + .NET sidecar architecture explained. Setup Editor Setup Configure SharpLsp for VS Code, Neovim, Helix, Emacs, Zed, and more.