Re: [Vala] Extension Methods

["Didier \"Ptitjes\"" <ptitjes free fr>]

Hi,

Frederik wrote:
> These 'categories' are even named, so you can group these additional
> methods thematically. If Vala considers such a feature I would propose
> the following syntax:
>
>  public class string category SpellChecking {
>      // ...
>  }
>
>  public class Gtk.Widget category GLFunctionality {
>      public bool set_gl_capability (...) {
>          // do stuff.
>      }
>      // ...
>  }
>
> These category names would get lost in C code, but they could be nice
> additional information in a Vala object browser.

But then why not using an aspect-orientated notation ?

In aspect-oriented language, inner-type declarations are defined in an 
aspect. An aspect, thus, defines correlated functionnality that spans 
multiple classes.

public aspect GLFunctionality {
        public bool Gtk.Widget.set_gl_capability(...) {
                // do stuff...
        }
        
        // Some other inner-type declaration
        // ...
}

I think that adding syntax to the language should be very carrefully 
thought. IHMO, I think that we should stick for now to adding 
annotations that would modify the compiler/generator's behavior.

Best regards, Didier.