rickpasveer

protocol ConvertibleFromRawInt {
    static func fromRaw(raw: Int) -> Self?
}

// Note: Tried to use Swift's standard RawRepresentable protocol rather
// than ConvertibleFromRawInt, but couldn't get it to compile.
// Don't know whether it is a Swift bug or something I was doing wrong.

// Generator for a sequence of contiguous ConvertibleFromRawInt values
class ConvertibleFromRawIntGenerator<T: ConvertibleFromRawInt>: GeneratorType {