kristopherjohnson

// Protocol for a type that supports a fromRaw(Int) conversion
// (such as "enum Foo: Int { ... }")
protocol ConvertibleFromRawInt {
    class 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.