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 >
