Symbol Language Support for VS Code

Syntax highlighting and real-time error diagnostics for the Symbol programming language.

Features

• Syntax highlighting — color-coded Symbol code
• Real-time diagnostics — errors appear as you type
• LSP support — extensible language server protocol

Setup

1. Make sure symboli compiler is accessible:

   # Add to PATH or configure in settings
   export PATH="/path/to/symboli/bin:$PATH"
   

2. Configure the compiler path in VS Code settings:

   {
     "symbol.compilerPath": "/path/to/symboli"
   }
   

Development

Build the extension:

npm install
npm run compile

Debug by pressing F5 in VS Code to launch the Extension Development Host.

How It Works

The LSP server validates .sym files by:

1. Running symboli --ast <file> to catch parse errors
2. Running symboli <file> to catch type and runtime errors
3. Converting error output to VS Code diagnostics

Errors are displayed as red squiggles on the problematic line.