Does Oxc also support TS runtime features like constructor parameter properties and enums? I seem to recall in the beta that they had enabled --erasableSyntaxOnly, presumably because Rolldown / Oxc didn't support doing a full transform.
For that matter, TypeScript's version of decorators ("experimental decorators") also works: https://playground.oxc.rs/?options=%7B%22run%22%3A%7B%22lint...
What's not supported is the current draft proposal for standardized ECMAScript decorators; if you uncheck experimentalDecorators, the decorator syntax is simply passed through as-is, even when lowering to ES2015.
Do you know what the status is on using Rolldown as a crate for rust usage? At the moment most rust projects use SWC but afaik its bundler is depreciated. I usually just call into Deno for builds but would be nice to have it all purely in Rust.