• 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: Inheritance question
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Inheritance question


  • Subject: Re: Inheritance question
  • From: MacDeveloper <email@hidden>
  • Date: Fri, 17 Aug 2007 16:41:03 +0530

I dont think this really works
[[[myClassInstance] super] theMethod]

you can't get super like this

Regards,
Mc Larry




On 17-Aug-07, at 4:32 PM, Tony Wroblewski wrote:

It doesn't work because you are still sending the message to your object, even if you cast it. It doesn't work the same as C++, when you can do virtual methods.

Wouldn't [[[myClassInstance] super] theMethod] work, although its incredibly ugly

Tony


On 17 Aug 2007, at 11:41, Daniel Angermeier wrote:

In the context of MyClass:
[(MySuperClass *)self theMethod];

However, this call does not invoke MySuperClass's implementation but
that of MyClass.
How can force it to use the method in MySuperClass ?

[super theMethod];

Ok, this would work for that particular case, but what if I have an instance of MyClass and want to call a super method on it. [(MySuperClass *)myClassInstance theMethod]; why does this casting approach at compile time not work ? Is there any other way to force the run time to use the super implementation of that method ?

Thanks,

Daniel
_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:
40mac.com


This email sent to email@hidden

_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:
40gmail.com


This email sent to email@hidden

_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:
This email sent to email@hidden


References: 
 >Re: Inheritance question (From: "Daniel Angermeier" <email@hidden>)
 >Re: Inheritance question (From: Tony Wroblewski <email@hidden>)

  • Prev by Date: Re: Inheritance question
  • Next by Date: Re: OutlineView Column Problem
  • Previous by thread: Re: Inheritance question
  • Next by thread: Re: Inheritance question
  • Index(es):
    • Date
    • Thread