UINavigationController.popViewController(animated:) should be imported as @discardableResult in Swift 3
| Originator: | an00na | ||
| Number: | rdar://29502910 | Date Originated: | 04-Dec-2016 12:35 PM |
| Status: | Duplicate of 28233249 (Open) | Resolved: | |
| Product: | iOS + SDK | Product Version: | 10.1 |
| Classification: | Enhancement | Reproducible: | Always |
Area: UIKit Summary: UINavigationController.popViewController(animated:) should be imported as @discardableResult in Swift 3. It is exactly the same as the removeLast() sample in Motivation of the proposal: https://github.com/apple/swift-evolution/blob/master/proposals/0047-nonvoid-warn.md. Currently it causes this warning: Expression of type 'UIViewController?' is unused Reference: http://stackoverflow.com/questions/37843049/xcode-8-swift-3-expression-of-type-uiviewcontroller-is-unused-warning
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