[Swift] Attribute equivalent of NS_REQUIRES_SUPER
| Originator: | martijn | ||
| Number: | rdar://17408107 | Date Originated: | 06/21/2014 |
| Status: | Open | Resolved: | |
| Product: | Developer Tools | Product Version: | |
| Classification: | Feature (New) | Reproducible: | Always |
The NS_REQUIRES_SUPER macro (or rather the underlying objc_requires_super LLVM attribute) in Objective-C is used to mark a method that expects a call to the superclass implementation from an overriding method. Swift seems designed to make conventions explicit and allow the compiler to catch common sources of bugs. Supporting an equivalent attribute (@requires_super?) could help generate appropriate error or warning messages at compile time rather than confront the developer with unexpected behavior.
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