Dinamic operator binding Proposal

[Carlos Santander]

JDavidLS escribió:
> Class Obj
> {
>   uint a,b;
> 
>   Str possibleOpCall1(uint x, uint y){a += y; b -=x;}
> 
>   Str possibleOpCall2(uint x, uint y){a -= x; b += y;}
> 
>   Str delegate(uint, uint) opCall = &possibleOpCall1;
> 
>   void changeMode()
>   {
>     opCall = &opssibleOpCall2;
>   }
> }
> 
> ¿¿dinamic operator bindigis facible on structs??
> 
> struct Blk
> {
>   uint a,b;
>   Str function(uint, uint) opCall = &possibleOpCall1;
>   static Str possibleOpCall1(ref Blk blk, uint x, uint y)
>   {
>     blk.a += y; 
>     blk.b -=x; 
>   }
>   ...
> }
> 
> 
> 

This has been suggested before, but there are ways to make it work now. Perhaps 
the most natural is just to add one level of indirection. In your example:

Str delegate(uint, uint) myOpCall = &possibleOpCall1;

void changeMode()
{
   myOpCall = &opssibleOpCall2;
}

Str opCall(uint x, uint y){ return myOpCall(x,y); }

-- 
Carlos Santander Bernal