✅ How to pattern-match a `Rune`?

is this the best I can do?

myRune switch
{
    _ when myRune == (Rune)'A' => 3,
    _ when myRune == (Rune)'B' => 4,
    // ...
}

myRune switch
{
    _ when myRune == (Rune)'A' => 3,
    _ when myRune == (Rune)'B' => 4,
    // ...
}

That's very noisy visually and it's unclear to me if the compiler is smart enough to perform the

(Rune)

(Rune)

cast on

char

char

literals at compile-time.

Is there not a way to specify a constant/literal Rune value?