I implemented adaptTo . http://github.com/9rnsr/scrap/blob/master/interfaces/interfaces.d
Kenji Hara 2010/9/22 kenji hara <k.hara...@gmail.com>: > Thanks for your advise, Andrei. > > I will try to implement adaptTo!T . > > Kenji Hara > > 2010/9/22 Andrei Alexandrescu <seewebsiteforem...@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 >> >
