Why can't I inherit (extend) structs?

[Derek Parnell]

On Tue, 10 Oct 2006 23:26:01 -0400, Jarrett Billingsley wrote:

> "rm" <roel.mathys at gmail.com> wrote in message 
> news:egh0bu$2155$1 at digitaldaemon.com...
>> Lionello Lunesu wrote:
>>> It's not a big deal, since I can use composition
>>
>> but mixin' it in, works nicely
> 

I know I'm just dreaming but it would be very nice-to-have if one could do
this ...

 struct Color
 {
    ubyte Red;
    ubyte Green;
    ubyte Blue;
 }

 struct Pixel extends Color
 {
     ubyte Alpha;
 }

 Pixel Z
 Z.Red = 80;
 Z.Blue = 125;
 Z.Green = 0;
 Z.Alpha = 128;

rather than 

 struct Color
 {
    ubyte Red;
    ubyte Green;
    ubyte Blue;
 }

 struct Pixel
 {
     Color color;
     ubyte Alpha;
 }

 Pixel Z
 Z.color.Red = 80;
 Z.color.Blue = 125;
 Z.color.Green = 0;
 Z.Alpha = 128;


-- 
Derek
(skype: derek.j.parnell)
Melbourne, Australia
"Down with mediocrity!"
11/10/2006 2:18:29 PM