Nullability annotation does not check for indirect nil values
Originator: | m.quinones.garcia | ||
Number: | rdar://20596086 | Date Originated: | 18/04/2015 |
Status: | Closed | Resolved: | Duplicate |
Product: | XCode | Product Version: | XCode 6.3 |
Classification: | Reproducible: |
Summary: Setting a 'nil' to a nonnull property in an object generates an expected warning when compiling the code. When setting an indirect, possibly nil pointer, compiler does not generate warnings. Steps to Reproduce: Compile the following Objective-C code with Xcode 6.3: // Your object NS_ASSUME_NONNULL_BEGIN @interface ViewController : UIViewController @property (nonatomic, copy) NSString *nonNullString; @end NS_ASSUME_NONNULL_END // Then you use it as: NSString *aString = @"hello"; aString = nil; controller.nonNullString = aString; controller.nonNullString = nil; Expected Results: It would be nice to have a more 'pedantic' warning when setting a value that has not been audited as nonnull like in the case above. So the programmer can't mistake by accident. Actual Results: Compiler accepts code and at runtime a non null value will be set to a nonnull-annotated property. Version: XCode 6.3 (6D570)
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