Extra spaces not removed in let-else statements

[adamchalmers]

I think this is a bug. Consider this program playground

fn main() {
    let x: Option<i32> = None;
    let Some(y) = x       else {
        return;
    };
    println!("{y}");
}

I think the extra spaces on line 3, between x and else, should be removed by rustfmt. But on current stable they aren't.

[ytmimi]

Thanks for reaching out. rustfmt doesn't handle let-else formatting because the rules for how it should be formatted are still being discussed in rust-lang/style-team#165

You might also want to follow #4914 to keep track of the implementation on the rustfmt side once the rules have been codified in the fmt-rfc linked above.