Hum... Direct calling the DOM API is there already. You may be thinking about FFI marshaling, that there is something on the pipeline for helping (I don't even remember exactly what). But that's only a small improvement on speed, and that almost never is a dealbreaker.
For a while I thought the garbage collection helper was a dealbreaker (for anything except Rust), but GC languages are starting to compile into WASM too, with just a small performance hit. (I haven't looked exactly how.)
This year and the next are looking like some serious promising period for non-JS programing on the browser.
Hum... Direct calling the DOM API is there already. You may be thinking about FFI marshaling, that there is something on the pipeline for helping (I don't even remember exactly what). But that's only a small improvement on speed, and that almost never is a dealbreaker.
For a while I thought the garbage collection helper was a dealbreaker (for anything except Rust), but GC languages are starting to compile into WASM too, with just a small performance hit. (I haven't looked exactly how.)
This year and the next are looking like some serious promising period for non-JS programing on the browser.