There is an open issue (an old one!) about assignment to tuples, but it's not entirely a no-brainer as to how to implement it while keeping Rust's grammar LL(k)

There is an open issue (an old one!) about assignment to tuples, but it's not entirely a no-brainer as to how to implement it while keeping Rust's grammar LL(k): https://github.com/rust-lang/rfcs/issues/372 https://github.com/rust-lang/rfcs/issues/372