rust/tests/source/chains.rs

// Test chain formatting.

fn main() {
    // Don't put chains on a single line if it wasn't so in source.
    let a = b .c
    .d.1
                .foo(|x| x + 1);

    bbbbbbbbbbbbbbbbbbb.ccccccccccccccccccccccccccccccccccccc
                       .ddddddddddddddddddddddddddd();

    bbbbbbbbbbbbbbbbbbb.ccccccccccccccccccccccccccccccccccccc.ddddddddddddddddddddddddddd.eeeeeeee();

    // Test case where first chain element isn't a path, but is shorter than
    // the size of a tab.
    x()
        .y(|| match cond() { true => (), false => () });

    loong_func()
        .quux(move || if true {
            1
        } else {
            2
        });

    some_fuuuuuuuuunction()
        .method_call_a(aaaaa, bbbbb, |c| {
            let x = c;
            x
        });

    some_fuuuuuuuuunction().method_call_a(aaaaa, bbbbb, |c| {
        let x = c;
        x
    }).method_call_b(aaaaa, bbbbb, |c| {
        let x = c;
        x
    });

    fffffffffffffffffffffffffffffffffff(a,
                                        {
                                            SCRIPT_TASK_ROOT
                                            .with(|root| {
                                                *root.borrow_mut()  =   Some(&script_task);
                                            });
                                        });                                        

    let suuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuum = xxxxxxx
        .map(|x| x + 5)
        .map(|x| x / 2)
        .fold(0, |acc, x| acc + x);

    aaaaaaaaaaaaaaaa.map(|x| {
                         x += 1;
                         x
                     }).filter(some_mod::some_filter)
}