Re: [DotGNU]How do you simulate an inner class in C#?

[Gopal V]

If memory serves me right, Mohan Embar wrote:
> At first glance, this seems right, although you will have to support some
> other constructs too, like the outer this pointer.

That's a new node in the tree that's all :-)

> >From everything I see, inner classes (actually, we're talking non-static
> member classes, since inner classes also include anonymous and local
> classes) are the same as nested classes except they have the outer
> class' this pointer.

Method Outer. Inner(Outer)
   0 aload_0
   1 invokespecial #4 <Method java.lang.Object()>
   4 aload_0
   5 aload_1
   6 putfield #5 <Field Outer this$0>
   9 return

Method void Foo()
   0 aload_0
   1 getfield #5 <Field Outer this$0>
   4 bipush 10
   6 putfield #6 <Field int x>
   9 return

Seems to be the code Javac generates ... which means that each inner 
class contains a 'this$0' which is implicit in the constructor .

After poking around the JVM output , I found that java classes can
be marked as "static" using 0x0008 bit in its visibility bitset. 
The only problem I can see is how to mark this as such ... like
how to differentiate inner classes from nested classes in IL code.
Maybe yet another custom attribute ?

> They can be accessible from outside (public class Inner) - I think they're
> like nested classes with the outer this pointer. ^Tum?

No I just tried it ... they have to called from a context where the 
"this" is the direct enclosing class of Inner ..

Gopal
-- 
The difference between insanity and genius is measured by success