Async identifier/keyword reference inside class static block

[Kingwl]

According to proposal-class-static-block

const async = 42

class C {
  static {
    const foo = await // illegal
    const bar = do {
        const b = await // legal or illegal ?
    }
  }
}

It's basically means does the do expression is a function boundary( tc39/proposal-class-static-block#43) ? Even the concept function boundary is not well-defined.

[bakkot]

Assuming you mean await rather than async, illegal. do has the same restrictions on syntax as the surrounding context.