overtone/
utils.rs

1pub trait PushReturn<T> {
2    fn push_and_get(&mut self, t: T) -> &mut T;
3}
4
5impl<T> PushReturn<T> for Vec<T> {
6    fn push_and_get(&mut self, t: T) -> &mut T {
7        self.push(t);
8        self.last_mut().unwrap()
9    }
10}