Long slice patterns are not getting wrapped

[IsaacShelton]

It seems that rustfmt doesn't wrap long slice pattern lines.

This problem #4530 was marked as fixed a few years ago, but the issue must have been reintroduced as the problem exists in rustfmt 1.6.0-nightly (8ce4540b 2023-09-29) (obtained through rustup).

Input

enum Foo {
    IAmALongVariantNameIJustKeepGoingOn { a: usize, b: usize },
}

fn main() {
    let foos = vec![Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 }];

    match foos.as_slice() {
        [
            Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 },
            Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 },
            Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 },
        ] => {}
        _ => {}
    }
}

Output

enum Foo {
    IAmALongVariantNameIJustKeepGoingOn { a: usize, b: usize },
}

fn main() {
    let foos = vec![Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 }];

    match foos.as_slice() {
        [Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 }, Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 }, Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 }] =>
            {}
        _ => {}
    }
}

Expected output

enum Foo {
    IAmALongVariantNameIJustKeepGoingOn { a: usize, b: usize },
}

fn main() {
    let foos = vec![Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 }];

    match foos.as_slice() {
        [
            Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 },
            Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 },
            Foo::IAmALongVariantNameIJustKeepGoingOn { a: 0, b: 0 },
        ] => {}
        _ => {}
    }
}

[calebcartwright]

Thanks but going to close as the change/fix already exists but is behind the version/style edition gate as required by the stability policy.

If you run with --config version=Two against the snippet you'll see the desired output