use behavior::{Acted, Actions, MailAddr, Never, NoBirths};
struct Counter(u64);
#[behavior::behavior(
addr = MailAddr,
message = u64,
sends = Vec<Never>,
births = NoBirths,
error = Never,
)]
impl Counter {
fn receive(
&mut self,
_from: MailAddr,
message: u64,
) -> Acted<MailAddr, Never, Vec<Never>, NoBirths, Never> {
self.0 += message;
Ok(Actions::cont())
}
}
fn main() {
let _behavior = Counter(0);
}