Alias this property for getter and setter?

[sighoya]

I would like to alias this with properties in both directions 
such that this is not only destructured to the other value but 
also the other value is destructured to this.

My intention is to allow something like the following:

struct Ref(T)
{
     T* ptr;
     this(T* ptr)
     {
         this.ptr=ptr;
     }
     @property T convert()
     {
         return *ptr;
     }

     @property Ref!T convert(ref T t)
     {
         return Ref!T(&t);
     }
     alias convert this;
}


T sum(T)(SList!(Ref!T) list) if(T is Number)
{
    T sum=0;
    foreach(T elem; list)
    {
        sum+=elem;
    }
    return sum;
}
void testRef()
{
     int i=2;
     Ref!int reference=i;
     int j=reference;
}