+1 I had a slightly different implementation. https://gist.github.com/DevAndArtist/dad641ee833e60b02fd1db2dbb488c6a
// // UnwrapOrTrap.swift // infix operator ?! : NilCoalescingPrecedence /// Performs a nil-coalescing operation, returning the wrapped value of an /// `Optional` instance or uses the rhs function to stop the program. /// /// - Parameters: /// - optional: An optional value. /// - noreturn: A function to stop the programm. func ?!<T>(optional: T?, noreturn: @autoclosure () -> Never) -> T { switch optional { case .some(let value): return value case .none: noreturn() } } -- Adrian Zubarev Sent with Airmail Am 27. Juni 2017 um 19:25:15, Erica Sadun via swift-evolution (swift-evolution@swift.org) schrieb: Using an operator to provide feedback on the context of a failed unwrap has become a commonly implemented approach in the Swift developer Community. What are your thoughts about adopting this widely-used operator into the standard library? guard !lastItem.isEmpty else { return } let lastItem = array.last !! "Array must be non-empty" Details here: https://gist.github.com/erica/423e4b1c63b95c4c90338cdff4939a9b Thank you for your thoughtful feedback, -- E _______________________________________________ swift-evolution mailing list swift-evolution@swift.org https://lists.swift.org/mailman/listinfo/swift-evolution
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