Code shared from the Rust Playground

playground.rs

macro_rules! express {
        ($thing:ident $( . $method:ident ( $($args:tt)* ) )*) => {{
            let mut thing = $thing;
            $( thing.$method($($args)*); )*
            thing
        }};
    }

fn main() {
    let a = vec![];
    let b = express!(a.push(1).push(2).push(34));
    println!("{:?}", b);
}