dots_and_barrels.rs

#![allow(non_upper_case_globals)]

fn main() {
    dots_and_barrels();
}

#[rustfmt::skip]
fn dots_and_barrels() -> DottyBarrel {
     r.r.r.0    .u.0.0.u    .0.s.s.s.s    .t.t.t.t.t
    .r.0.0.r    .u.0.0.u    .s.0.0.0.0    .0.0.t.0.0
    .r.r.r.0    .u.0.0.u    .s.s.s.s.s    .0.0.t.0.0
    .r.0.0.r    .u.0.0.u    .0.0.0.0.s    .0.0.t.0.0
    .r.0.0.r    .u.u.u.u    .s.s.s.s.0    .0.0.t.0.0
}

// ...

use std::ops::Deref;

static bart: Barrel = Barrel(DottyBarrel);
static r: Dotty = Dotty {
    r: bart,
    u: bart,
    s: bart,
    t: bart,
};

#[derive(Clone, Copy)]
struct Dotty {
    r: Barrel,
    u: Barrel,
    s: Barrel,
    t: Barrel,
}

#[derive(Clone, Copy)]
struct Barrel(DottyBarrel);

impl Deref for Barrel {
    type Target = Dotty;

    fn deref(&self) -> &Self::Target {
        &r
    }
}
#[derive(Clone, Copy)]
struct DottyBarrel;

impl Deref for DottyBarrel {
    type Target = Barrel;

    fn deref(&self) -> &Self::Target {
        &bart
    }
}