WX for Zed

Language support for WX, a Rust-inspired language that compiles directly to WebAssembly, in the Zed editor.

• Syntax highlighting (tree-sitter grammar)
• Diagnostics, hover, completions, and formatting via wx lsp — the same language server the VS Code extension uses

Not yet published to Zed's extension registry — install it as a dev extension (below) to try it.

The grammar is an early-stage MVP: it gives real structure to top-level items (fn, struct, trait, impl, etc. — enough for highlighting and bracket matching), but signatures and bodies are parsed as generic balanced-token groups rather than a full expression grammar. It's been checked against every .wx file in the main wx repo with zero parse errors, but it isn't a validating parser.

This extension talks to the wx CLI's language server — it doesn't bundle a binary. Install wx and make sure it's on your PATH:

npm install -g @wx-lang/cli

or build it from source (see the main README).

1. Clone this repo.
2. Install Rust via rustup (not your OS package manager) and add the WASM target: rustup target add wasm32-wasip1.
3. In Zed: open the extensions panel → Install Dev Extension → select this folder.
4. Zed compiles the extension and grammar the first time (may take a minute). Open a .wx file afterwards to try it.

If wx isn't on your PATH, or you want to point at a specific install, use Zed's standard per-language-server override in settings.json:

"lsp": {
  "wx": {
    "binary": {
      "path": "/path/to/wx",
      "arguments": ["lsp"]
    }
  }
}

Found a bug or missing feature? Open an issue.