Swift - implementing NSXMLParserDelegate

Question

I'm trying to have a class of mine implement NSXmlProtocolDelegate but the compiler fails indicating that the class does not conform to NSObjectProtocol.

Is it required that all of the functions from NSObjectProtocol be implemented, or can that be avoided?

class GeoRssParser : NSXMLParserDelegate
{
    func parserDidStartDocument(parser : NSXMLParser)
    {

    }
}

Not much to see at this point - I got this far before the compiler started failing.

Answer 1

Yes, at least anything that isn't tagged as @optional. The easiest way to achieve this would be to simply make your class a subclass of NSObject, which already conforms to the NSObjectProtocol, and implements all its methods.

class GeoRssParser: NSObject, NSXMLParserDelegate {
    func parserDidStartDocument(parser : NSXMLParser) {
        // stuff
    }
}