if let for match arm guard?

[tesuji]

Does it have any design for if let in match arm guard?

match "foobar" {
    s if let Some(tail) = tail.strip_prefix("bar") => dbg!(tail),
    _ => "barbaz",
}

Without if let, I have to indent the if expression a bit:

match "foobar" {
    s => {
        if let Some(tail) = tail.strip_prefix("bar") {
            dbg!(tail)
        } else {
            "barbaz"
        }
    }
}

[petrochenkov]

There's an accepted RFC about this - https://github.com/rust-lang/rfcs/blob/master/text/2294-if-let-guard.md

[tesuji]

Thanks. So if let for guard hasn't been implemented.
Should I close this issue for #51114 instead ?

[nagisa]

Duplicate of #51114