Q: How to return sub class from base class method

[Myron Alexander]

Jari-Matti Mäkelä wrote:
> 
> Yes, you can use CRTP
> (http://en.wikipedia.org/wiki/Curiously_Recurring_Template_Pattern).
> 
> class A(T) {
>   T doSomething() {
>     ...
>     return cast(T)this;
>   }
> }
> 
> class B(T) : A!(T) {
>   T doSomethingElse() {
>     ...
>     return cast(T)this;
>   }
> }
> 
> There might be other (more clever) ways to do this too. Like a mixin for
> the "selftype" or something.

Thanks for the suggestion. I am hoping for a solution that does not 
require me to set a type on instantiation. I just want to write:

B b = (new B()).doSomething (???).doSomethingElse (???);

If the language does not have a way to do it, that's ok, the mixin 
solution works.

Regards,

Myron.