rust/tests/target/chains-visual.rs

// rustfmt-normalize_comments: true
// rustfmt-single_line_if_else_max_width: 0
// rustfmt-chain_indent: Visual
// 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)
}

fn floaters() {
    let z = Foo {
        field1: val1,
        field2: val2,
    };

    let x = Foo {
                field1: val1,
                field2: val2,
            }
            .method_call()
            .method_call();

    let y = if cond {
                val1
            } else {
                val2
            }
            .method_call();

    {
        match x {
            PushParam => {
                // params are 1-indexed
                stack.push(
                    mparams[match cur.to_digit(10) {
                                Some(d) => d as usize - 1,
                                None => return Err("bad param number".to_owned()),
                            }]
                    .clone(),
                );
            }
        }
    }

    if cond {
        some();
    } else {
        none();
    }
    .bar()
    .baz();

    Foo { x: val }
        .baz(|| {
            force();
            multiline();
        })
        .quux();

    Foo {
        y: i_am_multi_line,
        z: ok,
    }
    .baz(|| {
        force();
        multiline();
    })
    .quux();

    a + match x {
            true => "yay!",
            false => "boo!",
        }
        .bar()
}

fn is_replaced_content() -> bool {
    constellat.send(ConstellationMsg::ViewportConstrained(self.id, constraints))
              .unwrap();
}

fn issue587() {
    a.b::<()>(c);

    std::mem::transmute(dl.symbol::<()>("init").unwrap())
}

fn issue_1389() {
    let names = String::from_utf8(names)?
        .split('|')
        .map(str::to_owned)
        .collect();
}

fn issue1217() -> Result<Mnemonic, Error> {
    let random_chars: String = OsRng::new()?
        .gen_ascii_chars()
        .take(self.bit_length)
        .collect();

    Ok(Mnemonic::new(&random_chars))
}

fn issue1236(options: Vec<String>) -> Result<Option<String>> {
    let process = Command::new("dmenu")
        .stdin(Stdio::piped())
        .stdout(Stdio::piped())
        .spawn()
        .chain_err(|| "failed to spawn dmenu")?;
}

fn issue1434() {
    for _ in 0..100 {
        let prototype_id = PrototypeIdData::from_reader::<_, B>(&mut self.file_cursor)
            .chain_err(|| {
                format!(
                    "could not read prototype ID at offset {:#010x}",
                    current_offset
                )
            })?;
    }
}