Lane for Visual Studio Code

Language support for the Lane programming language.

Features

• Syntax highlighting that works without a language server
• Diagnostics, completion, hover, and go to definition through lane lsp
• Type, parameter name, and implicit argument inlay hints
• Document formatting through lane fmt
• Comment, bracket, auto-closing, and surrounding-pair support
• A Lane: Restart LSP command for restarting the language server

Requirements

Install the Lane CLI and set LANE_HOME to its installation directory. The extension uses:

$LANE_HOME/bin/lane

The Lane executable must support both the lane lsp and lane fmt commands.

VS Code must inherit the LANE_HOME environment variable. On macOS, launching VS Code from a configured terminal with code . is one way to ensure that the variable is available to the extension host.

Configuration

lane.path

An optional absolute path to the Lane executable. When set, this takes precedence over $LANE_HOME/bin/lane.

Example:

{
  "lane.path": "/absolute/path/to/lane"
}

After changing LANE_HOME or lane.path, run Lane: Restart LSP from the Command Palette.

Formatting

Use the standard Format Document command. The extension runs lane fmt on a temporary copy of the current document and applies the resulting text as one editor edit.

To make Lane the default formatter:

{
  "[lane]": {
    "editor.defaultFormatter": "MilkyNatas.lane"
  }
}

Troubleshooting

If the language server does not start:

1. Check that LANE_HOME is visible to VS Code or configure lane.path.
2. Check that the resolved Lane executable exists and is executable.
3. Run Lane: Restart LSP.
4. Open the VS Code Output panel and inspect the Lane Language Server output.

License

MIT