Calling an alias for a Class method in another scope

[Steven Schveighoffer]

On Fri, 01 Jun 2012 10:09:49 -0400, d coder <dlang.coder at gmail.com> wrote:

> Hello Steve
>
>
>> There is a way, as I hinted :)
>>
>> I'll show you how, but be prepared to deal with ugliness!
>>
>
> All this smart code would be hidden from the end-users so I really do not
> care.
>
>
>> typeof(&F.init.foo) dg; // alternately: void delegate() dg;
>> dg.funcptr = &F.foo;    // use the type, not the instance, to get the
>> function pointer itself instead of a delegate
>> dg.ptr = cast(void *)f; // set f is the context pointer
>>
>> dg(); // now should call f.foo
>>
>> Let me understand this. Is F here an alias for foo? If so why I need to
> mention stuff like &F.foo?

Sorry!  I meant Foo, not F.  F should be replaced with whatever the class  
type is.

-Steve