Simulating Multiple Inheritance

[Simen kjaeraas]

dsimcha <dsimcha at yahoo.com> wrote:

> I've just found a new D-specific design pattern for simulating  
> non-virtual
> multiple inheritance by abusing inner classes and alias this.  Here's an  
> example:
>
> class Foo {
>     uint num = 2;
> }
>
> class Bar {
>     uint num = 3;
> }
>
> class Outer : Foo {
>
>     class Inner : Bar {}
>
>     Inner inner;
>
>     this() {
>         inner = new Inner;
>     }
>
>     alias inner this;
> }

I believe this is mentioned in TDPL.

-- 
Simen