[swift-users] Confused by this error message

2017-01-30 Thread Travis Griggs via swift-users
I’m currently refactoring some code (Swift 3.?, latest XCode), and I ended up with the following: func spansTSON() -> TSON { var docs = self.spans.map() { $0.tson } for (span, doc) in zip(self.spans, docs) { if let datum = span.begin

Re: [swift-users] Confused by this error message

2017-01-30 Thread Travis Griggs via swift-users
> On Jan 30, 2017, at 3:19 PM, Travis Griggs wrote: > > I’m currently refactoring some code (Swift 3.?, latest XCode), and I ended up > with the following: > > func spansTSON() -> TSON { > var docs = self.spans.map() { $0.tson } > for (span, doc) in zip(self.s