Hi Mike, The Foundation shipping with OS X and iOS is still written in Objective-C. The Swift-Corelibs Foundation is for use on other platforms currently.
David > On Apr 22, 2016, at 2:03 PM, Mike Berg via swift-dev <swift-dev@swift.org> > wrote: > > Hi everyone, > > A question has come up on my project that nobody seems to have an answer for. > I was hoping someone here might know: > > On my project, we have a longstanding iOS application that has both objC and > swift source files. As is the case for most old apps out there (a few years), > we regularly use swift code in objC and vice versa. > > We have been keeping tabs on how Swift has been expanding and we noticed that > with Swift 3, the foundation classes will be rewritten in swift. So does this > mean that all Swift classes using Foundation automatically start using > Foundation written in Swift or is it opt-in? If it’s mandatory, then will > libraries dependent on the Objective-C runtime no longer work (i.e. the > Alamofire git repo)? > > Thanks for reading and take care, > -- > Michael Berg > Technical Analyst > Solstice Mobile > (630) 414-6938 > _______________________________________________ > swift-dev mailing list > swift-dev@swift.org > https://lists.swift.org/mailman/listinfo/swift-dev _______________________________________________ swift-dev mailing list swift-dev@swift.org https://lists.swift.org/mailman/listinfo/swift-dev