I totally agree. I love Swift's guard let. It makes early returning [1] easy:

    guard let value = optvalue else {
        return // optvalue is none
    }

There has been several proposals [2][3] to fix it in Rust but they don't seem to go anywhere.

I'm using this in my own code now to unwrap or return (it looks stupid):

        let value = if let Some(value) = optvalue {
            value
        } else { // optvalue is none
            return;
        };

[1] https://szymonkrajewski.pl/why-should-you-return-early/

[2] https://github.com/rust-lang/rfcs/issues/2616

[3] https://github.com/rust-lang/rfcs/pull/1303