You cannot. You will have a pointer of some kind in your Foo class that points
to the current "container".
Sent from my iPad
On Apr 10, 2010, at 14:38, Tony Romano <tony...@hotmail.com> wrote:
> Using the sample below, how do I get the instance of the class in which I am
> contained WITHOUT passing it as a parameter or using hacky sizeof tricks in
> the method Foo:method? Thanks people! If this is not the correct alias for
> this type of question, apologizes in advance.
>
>
> @interface Foo : NSObject
> {
> id containerClass;
> }
> -(void) method;
> @end
>
> @implementation Foo
>
> -(void) method
> {
> // set containerClass member to point to the instance in which I am
> contained
> // (i.e. the pointer to the instance of Bar.
> // 'self' refers to an instance of Foo
> }
> @end
>
> **************************************************************************************
>
> @interface Bar : NSObject
> {
> Foo * f; // contains a Foo
> }
> @end
>
> @implementation Bar
> - (id) init
> {
> ...
>
> // Call 'method' on object 'f' of type Foo
> [f method];
>
> ...
> }
> @end
>
>
>
> -tony
>
>
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