Swift

Swift language support in Gram is provided by the community-maintained Swift extension. Report issues to: [https://github.com/zed-extensions/swift/issues](https://github.com/zed-extensions/swift/issues)

• Tree-sitter: alex-pinkus/tree-sitter-swift
• Language Server: swiftlang/sourcekit-lsp
• Debug Adapter: lldb-dap

Language Server Configuration

You can modify the behavior of SourceKit LSP by creating a .sourcekit-lsp/config.json under your home directory or in your project root. See SourceKit-LSP configuration file for complete documentation.

Debugging

The Swift extension provides a debug adapter for debugging Swift code. Gram's name for the adapter (in the UI and debug.jsonc) is Swift, and under the hood it uses lldb-dap, as provided by the Swift toolchain. The extension tries to find an lldb-dap binary using swiftly, using xcrun, and by searching $PATH, in that order of preference. The extension doesn't attempt to download lldb-dap if it's not found.

• lldb-dap configuration documentation

Examples

Build and debug a Swift binary

[
  {
    "label": "Debug Swift",
    "build": {
      "command": "swift",
      "args": ["build"]
    },
    "program": "$GRAM_WORKTREE_ROOT/swift-app/.build/arm64-apple-macosx/debug/swift-app",
    "request": "launch",
    "adapter": "Swift"
  }
]