Replace class
constraint with AnyObject
#1733
Merged
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Pretty insignificant, but the recommended practice in Swift now is to use AnyObject instead of class, and recently there have been motions toward a new reference type (
actor
) that theclass
naming makes a little unclear, while AnyObject is more of a generic and all-encompassing term for reference types. Also, the class constraint typealias may be removed in future versions of Swift.ref: https://github.com/apple/swift-evolution/blob/master/proposals/0156-subclass-existentials.md#class-and-anyobject