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Re:Introducing Swift by quonn on Monday June 02, 2014 @04:14PM (#7836009)
Swift uses a special "bridging header" to expose Objective-C code to Swift. This header will presumably be processed by the Swift compiler.

In the other direction, XCode will automatically generate an Objective-C header to expose your Swift code to Objective-C.

Re:Introducing Swift by outworlder on Monday June 02, 2014 @04:18PM (#7836039)
The ibooks guide references a "Using Swift with Cocoa and Objective-C" document. Is that where you got your information?