I suggest we need to find a way to shorten the list of the possible error types with a the help of typeallias
extension MyError1: Error { ... } extension MyError2: Error { ... } extension MyError3: Error { ... } typealias MyErrors = MyError1 | MyError2 | MyError3 func foo() throws(MyErrors) -> MyResult func bar<T : Error>(_: () throws(T) -> Void) rethrows(MyErrors, T) -> MyResult -- Adrian Zubarev Sent with Airmail Am 17. Februar 2017 um 19:47:47, Anton Zhilin via swift-evolution (swift-evolution@swift.org) schrieb: Now this is on-topic, I guess. Last time we stopped at John McCall’s syntax: extension MyError: Error { ... } func foo() throws(MyError) -> MyResult It’s conservative and prevents visual ambiguity with extra parentheses. If we (somewhat) agree on this, then submitting a proposal will be trivial. _______________________________________________ swift-evolution mailing list swift-evolution@swift.org https://lists.swift.org/mailman/listinfo/swift-evolution
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