• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: [self init] vs. [super init] in initWithCoder
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [self init] vs. [super init] in initWithCoder


  • Subject: Re: [self init] vs. [super init] in initWithCoder
  • From: Byron Wright <email@hidden>
  • Date: Thu, 17 Aug 2006 22:45:51 -0700

If you have a base class that implements NSCoding you'd call [self init], if you have subclasses of this base class then you'd call [super initWithCoder:] so the whole class hierarchy can be unarchived/ archived.


On Aug 17, 2006, at 8:26 PM, John McLaughlin wrote:

I was pounding my head against a bug last night that ended up being caused by the fact that I had used [super init] within initWithCoder instead of [self init] (I set up some notifications in [self init] that, well, weren't being set up)

It got me to thinking, it seems the convention is to call [super init] within initWithCoder, most code examples do this. Is there a reason you wouldn't as a rule call [self init]?

The only reason I can think of offhand is a little performance hit (since possibly you are creating object in [self init] that you promptly overwrite in initWIthCoder) but except for that I really can't think of a good reason not to call [self init] (which, of course, will call [super init]) and it seems to me to be a best practice.


Am I missing something obvious here?

-John

John McLaughlin
http://www.loghound.com
email@hidden



_______________________________________________
Do not post admin requests to the list. They will be ignored.
Cocoa-dev mailing list (email@hidden)
Help/Unsubscribe/Update your Subscription:
40bluebearstudio.com


This email sent to email@hidden

_______________________________________________ Do not post admin requests to the list. They will be ignored. Cocoa-dev mailing list (email@hidden) Help/Unsubscribe/Update your Subscription: This email sent to email@hidden
References: 
 >[self init] vs. [super init] in initWithCoder (From: John McLaughlin <email@hidden>)

  • Prev by Date: Adding Structure in NSArray
  • Next by Date: Re: How to auto launch
  • Previous by thread: Re: [self init] vs. [super init] in initWithCoder
  • Next by thread: How to auto launch
  • Index(es):
    • Date
    • Thread