You unfortunately probably have to deal with exceptions when crossing into Objective-C land because of https://developer.apple.com/library/mac/documentation/coc

You unfortunately probably have to deal with exceptions when crossing into Objective-C land because of https://developer.apple.com/library/mac/documentation/cocoa/reference/foundation/Classes/NSException_Class/Reference/Reference.html https://developer.apple.com/library/mac/documentation/cocoa/....