Nulang VS Code Extension

Syntax highlighting, diagnostics, and LSP features for the Nulang programming language.

Features

• Syntax highlighting — keywords, types, strings, numbers, comments
• Diagnostics — parse errors, type errors, effect errors on save
• Go-to-definition — jump to function/type/variable definitions
• References — find all usages of a symbol
• Hover — type information on hover
• Completion — keyword and built-in effect suggestions
• Rename — project-wide symbol rename
• Formatting — indentation support

Installation

From .vsix (recommended)

# Build from source (requires Node.js):
cd .vscode
npm install
npx @vscode/vsce package

# Install:
code --install-extension nulang-0.1.0.vsix

Manual install

cp -r .vscode ~/.vscode/extensions/nulang/

From the Marketplace

Search for "Nulang" in the VS Code Extensions view (coming soon).

Requirements

• Nulang compiler installed and on your PATH (or set NULANG_PATH env var)
• Build from source: git clone https://github.com/dporkka/nulang && cd nulang && cargo build --release

Configuration

Set NULANG_PATH to the full path of the nulang binary if it's not on your PATH:

{
  "nulang.serverPath": "/path/to/nulang"
}

Commands

• Nulang: Restart Language Server — restart the LSP server after updating the compiler

Development

The extension is minimal: extension.js launches nulang --lsp as a stdio language server. The LSP server (src/lsp/mod.rs) provides 12 features including hover, goto-definition, references, rename, signature help, inlay hints, completion, and diagnostics.

License

Apache-2.0