splitting a class in pieces, compile-time dependent

[Riccardo Mottola]

MyClass.m

@implementation MyClass

- (void)method
{
#ifdef A
A stuff
#else idfef B
B stuff
#endif
}
@end

So I have conditional code, switched at compile time, which is just 
fine. However I have actually many more ifdefs (each representing an 
operating system) and the code got unreadable.

I want to find  a good way to split this in MyClass-A, MyClass-B, etc by 
adding the least possible logic and especially keeping everything static 
ad build time (not runtime).

I thought of extending the class

MyClass(A)

-(void)methodA{}

and then in the MyClass udate doing something:
- (void)method
{
#ifdef A
[self methodA];
#else idfef B
[self methodB]
#endif
}

But hits is bogus: "MyClass" gets instantiated, nothing is known about 
methodA and thus an exception will be thrown.


Can this method be refined? Or do you have different suggestions?


Riccardo