17 lines
678 B
ReStructuredText
17 lines
678 B
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.. title:: clang-tidy - objc-missing-hash
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objc-missing-hash
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=================
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Finds Objective-C implementations that implement ``-isEqual:`` without also
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appropriately implementing ``-hash``.
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Apple documentation highlights that objects that are equal must have the same
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hash value:
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https://developer.apple.com/documentation/objectivec/1418956-nsobject/1418795-isequal?language=objc
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Note that the check only verifies the presence of ``-hash`` in scenarios where
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its omission could result in unexpected behavior. The verification of the
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implementation of ``-hash`` is the responsibility of the developer, e.g.,
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through the addition of unit tests to verify the implementation.
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