Racer, the autocomplete engine, does. I'm not sure if there's more plugin usage since I haven't looked at the source yet. Rust has great support for hooking in

Racer, the autocomplete engine, does. I'm not sure if there's more plugin usage since I haven't looked at the source yet. Rust has great support for hooking in to the compiler and/or creating drop-in replacements. I'm hoping this pans out well and leads to some excellent tooling! :D