LazyInterface (simplified Boost.Interfaces)

[kenji hara]

Thanks for your advise, Andrei.

I will try to implement adaptTo!T .

Kenji Hara

2010/9/22 Andrei Alexandrescu <SeeWebsiteForEmail at erdani.org>:
> On 9/21/10 14:36 CDT, kenji hara wrote:
>>
>> Hi.
>>
>> I heard Boost.Interfaces recently. Then, it implemented by D.
>> http://github.com/9rnsr/scrap/blob/master/interfaces/interfaces.d
>>
>> How about you?
>
> Hi Kenji,
>
>
> Looking very interesting. One thing I'd change would be the interface
> definition. Ideally the client code would look like this:
>
> static class A
> {
>  int draw(){ return 10; }
> }
>
> static class B : A
> {
>  int draw(){ return 20; }
> }
>
> interface Drawable
> {
>  int draw();
> };
>
> unittest
> {
>  Drawable d = adaptTo!Drawable(new A);
>  assert(d.draw() == 10);
>  d = adaptTo!Drawable(new B);
>  assert(d.draw() == 20);
> }
>
> adaptTo would rely on introspection and code generation to define an
> implementation of Drawable that forwards calls to an object.
>
>
> Andrei
>