This is one of those natural consequences of "everything is an expression" languages that I really like! I like more explicit syntax like Zig's labelled blocks, but any of these are cool.
Try this out, you can actually (technically) assign a variable to `continue` like:
let x = continue;
Funnily enough, one of the few things that are definitely always a statement are `let` statements! Except, you also have `let` expressions, which are technically different, so I guess that's not really a difference at all.
I'm not sure why you picked continue here? All the diverging control flow instructions have the same type, ! aka "Never". In stable Rust you're not allowed to use its name but it's "just" an empty type and you can easily make one of those yourself - an enum with no variants.