ObjC question
ObjC question
- Subject: ObjC question
- From: Tony Romano <email@hidden>
- Date: Sat, 10 Apr 2010 14:38:27 -0700
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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