Re: "multiple inheritence" / behavior

[David Ayers]

Mondragon, Ian wrote:

> use a @protocol - that's exactly what they're for.  if you want all of your
> classes to respond to everyoneDoThis and everyoneDoThat...
>  
I believe that Manuel is aware of protocols and he is actually meaning 
to share the concrete implementation over multiple unrelated classes 
(that all happen to implement the methods and possibly have the same 
ivars needed for the implementation).  If I'm correct, I'd extract the 
implementation to a seperate file to be included in the right spot of 
the different classes.  Unlike the behavoir mechanism, this will create 
mutliple identical implementations associated with different classes. 
This does slow down compile time but I think debugging should be a lot 
more straight forward than using than manipulating the runtime as the 
behavoir does.  But I guess it depends on the concrete case.

Just my 2 cents,
Cheers,
Dave