> The article then goes on to say that this is impossible in Rust, which is probably a fair statement. You may be able to get something quite close with really

> The article then goes on to say that this is impossible in Rust, which is probably a fair statement. You may be able to get something quite close with really horrible, unsafe code but no sane person would try. As it happens, a crate was just released that does exactly this, using a derive macro [0]. (I wouldn't recommend using it quite yet, though; it still has a few kinks to be worked out.) [0] https://crates.io/crates/peapod https://crates.io/crates/peapod