Building on the more practical example, this sort of conditional early return is extremely common in Rust, because expression-orientation makes it very pleasant

Building on the more practical example, this sort of conditional early return is extremely common in Rust, because expression-orientation makes it very pleasant to use. Here’s a sketch of some of the sorts of ways it can happen in state machine: loop { // … state = match state { A => B, // normal B => break, // exits the loop C => { …; continue; }, // does something and then returns to the start of the loop, skipping setting the state and anything else D => return, // exits the whole thing E => f()?, // if f() returns an Err or None or similar, it’ll return early }; // … }