Method encode

crates/guest-rust/src/rt/async_support.rs:427–433

(self)

impl CallbackCode {
    fn encode(self) -> u32 {
        match self {
            CallbackCode::Exit => 0,
            CallbackCode::Yield => 1,
            CallbackCode::Wait(waitable) => 2 | (waitable << 4),
        }
    }
}

const STATUS_STARTING: u32 = 0;