Objective-C Nullability Annotations: Auditing Public Headers for Swift Interop
Wrap Objective-C public headers in NS_ASSUME_NONNULL regions and mark exceptions with nullable to get compile-time checks and correct Swift optional types.
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Wrap Objective-C public headers in NS_ASSUME_NONNULL regions and mark exceptions with nullable to get compile-time checks and correct Swift optional types.
Objective-C nullability annotations and lightweight generics are compile-time only, but they reshape how your headers import into Swift — turning String! into String? and [Any] into [String]. Here is how to adopt them incrementally in a legacy codebase.
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