CODEWITHSUNDEEP
objective-cnscopying
ArtS
ArtS

Reputation: 2012

Is it better to use -> instead of . in to implement `copyWithZone:` method in objective-c?

Say there's a class A with property p1, and setter for p1 has been overwritten. Now I want to implement NSCopying protocol for class A.

In my understanding since you're "copying" an instance of class A, there's no need to trigger any setter methods in copyWithZone: method. So copyOfInstance -> _p1 = _p1; is better than copyOfInstance.p1 = _p1. Is it right?

Upvotes: 1

Views: 71

Answers (1)

matt
matt

Reputation: 535202

Yes. You are forming the new object exactly as if you were implementing an initializer. So the rules are the same. Just as you must not use a setter method in an init... method, so you must not use a setter in copyWithZone:.

Upvotes: 2

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