Add support implicit conversion between types

[ilya-stromberg]

On Saturday, 7 September 2013 at 13:02:39 UTC, Simen Kjaeraas 
wrote:
> It's a bit weird in D though, as operators are instance 
> methods, and
> opImplicitRightCast (or opImplicitCastFrom, which is the name 
> used in
> discussions before, see WalterAndrei.pdf from back when 
> dinosaurs roamed the
> earth) should definitely not be an instance method but a static 
> one.
>
> That said, I belive opImplicitCastFrom is The Right Solution™. 
> It's explicit,
> it's a bit ugly, but not so much it hurts.

Yes, "opImplicitCastFrom" looks better. I didn't know about 
"WalterAndrei.pdf" file. Can you give me a link to the file? It's 
intresting to read.

In C# this operator is static:

class Foo {
    public Foo(int temp)
    {
    }

    public static implicit operator Foo(int temp) {
       return new Foo(temp);
    }
}

So, I agree, the "opImplicitCastFrom" should be also static.