Forces a predicate that was securely decoded to allow evaluation.
- iOS 7.0+
- macOS 10.9+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
When securely decoding
NSPredicate objects that are encoded using
NSSecureCoding, evaluation is disabled because it is potentially unsafe to evaluate predicates you get out of an archive.
Before you enable evaluation, you should validate key paths, selectors, and other details to ensure no erroneous or malicious code will be executed. Once you’ve verified the predicate, you can enable the receiver for evaluation by calling
Evaluating a Predicate
Returns a Boolean value indicating whether the specified object matches the conditions specified by the predicate.
Returns a Boolean value indicating whether the specified object matches the conditions specified by the predicate after substituting in the values in a given variables dictionary.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.Learn more about using Apple's beta software