Re: [Vala] Is there any way to access generic type from the interface?

["marcin saepia net" <marcin saepia net>]

Hello,

of course I made mistake in my code.

I want to do interface that acts as a mixin, which will be mixed into class
specifies generic type, and I want methods from this mixin return the same
type as class that embeds the mixin.

Now I create interface with generic type, so in the parent class I have to
write

public class MyClass : MyBaseClass<SomeType>, MyInterface<SomeType> {

}

but it's kind of redundant. I would like to write

public class MyClass : MyBaseClass<SomeType>, MyInterface {

}

and access from MyInterface information that SomeType was passed to
MyBaseClass as generic type.

Is it possible at all?

m.

2016-02-28 2:12 GMT+01:00 Felipe Lavratti <felipelav gmail com>:

> Hey Marcin,
>
> What is exactly you need from interfaces in your code ?Are you doing
> Dependency Inversion?
>
> Felipe
>
>
> On Sat, Feb 27, 2016 at 4:40 PM Daniel Espinosa <esodan gmail com> wrote:
>
> > Is not valid code. Interfaces should "derive" from Object. Interfaces
> > list dependencies, the first one should be Object, then other interfaces
> > depends on, the order matters, because if other interfaces depends on same,
> > they should be added first.
> >
> > For your question, use typeof(G)
> > El feb. 27, 2016 1:26 PM, "Felipe Lavratti" <felipelav gmail com>
> > escribió:
> >
> > > I don't know if your code is valid Vala. MyInterface should not inherit
> > > MyClass.
> > >
> > > On Sat, Feb 27, 2016 at 10:59 marcin saepia net <marcin saepia net>
> > > wrote:
> > >
> > > > Hello,
> > > >
> > > > I am planning to use interfaces as in vspec as they are nice syntax
> > > sugar
> > > > for my purpose.
> > > >
> > > > However, in order to make it working properly, I need to access type
> > > > defined as generic in the parent class implementing interface.
> > > Something
> > > > like
> > > >
> > > > public interface MyIface : MyClass {
> > > >   public MyGenericType something() {
> > > >     ...
> > > >   }
> > > > }
> > > >
> > > >
> > > > public abstract class MyClass<MyGenericType> : MyIface {
> > > >
> > > > }
> > > >
> > > >
> > > > Is it possible in any way?
> > > >
> > > > m.
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