Open Radar

 
The associated data for enum cases is already tuple, I think it would a lot more consistency to Swift if it were exposed as a type.

For example:

    enum Token  {
        case Keyword(keyword: String, offset: Int)
        case Identifier(identifier: String, offset: Int)
    }

To get the values from the cases, it should be as simple as this:

    let keyword /* : String? */ = importkey.Keyword?.keyword

This also could address the cumbersome case matching syntax for enums vs. tuples:

    if case ("import", _) = importkey.Keyword {
        print("import keyword")
    }

vs. today’s

    if case Token.Keyword("import", _) = importkey {
        print("import keyword")
    }