Has there still not been a formal proposal for "Never as universal subtype/bottom"? Someone please propose it :)
Jacob On Sat, Nov 12, 2016 at 12:20 AM, Adrian Zubarev via swift-users < swift-users@swift.org> wrote: > I’ve build a custom operator for this: https://gist.github.com/ > DevAndArtist/dad641ee833e60b02fd1db2dbb488c6a > > infix operator ?! : NilCoalescingPrecedence > > func ?!<T>(optional: T?, noreturn: @autoclosure () -> Never) -> T { > switch optional { > case .some(let value): > return value > case .none: > noreturn() > } > } > > // Usage > let test: Int? = nil > > test ?! fatalError("Message") > > > > -- > Adrian Zubarev > Sent with Airmail > > Am 6. Oktober 2016 um 05:35:53, Jonathan Hull via swift-users ( > swift-users@swift.org) schrieb: > > I used to be able to use ?? with fatalError(“Message”) to trap with a > custom message in case of nil. This no longer works in Swift 3 (I think > because of the update to never type) > _______________________________________________ > swift-users mailing list > swift-users@swift.org > https://lists.swift.org/mailman/listinfo/swift-users > > > _______________________________________________ > swift-users mailing list > swift-users@swift.org > https://lists.swift.org/mailman/listinfo/swift-users > >
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