• d d.com Jul 31 2005
• "Jarrett Billingsley" <kb3ctd2 yahoo.com> Jul 31 2005
• Vathix <chris dprogramming.com> Jul 31 2005
• Shammah Chancellor <Shammah_member pathlink.com> Jul 31 2005
• Vathix <chris dprogramming.com> Jul 31 2005

d d.com writes:

For non-static inner class, it contains a hidden "this" pointer to the outter,
how can I expplicitly access it?  Thanks.

e.g.

void globalFunc(Outter o) {
o.blah ...; 
}

class Outter {

class Inner {

void foo() {
globalFunc(???)  // how to explicityly access "outter this" pointer
}

}

}

"Jarrett Billingsley" <kb3ctd2 yahoo.com> writes:

<d d.com> wrote in message news:dcjik7$u6t$1 digitaldaemon.com...
 For non-static inner class, it contains a hidden "this" pointer to the 
 outter,
 how can I expplicitly access it?  Thanks.


You can't, currently.  This is something I also asked for a week or two ago. 

Vathix <chris dprogramming.com> writes:

On Sun, 31 Jul 2005 18:16:39 -0400, <d d.com> wrote:

 For non-static inner class, it contains a hidden "this" pointer to the  
 outter,
 how can I expplicitly access it?  Thanks.

 e.g.

 void globalFunc(Outter o) {
 o.blah ...;
 }

 class Outter {

 class Inner {

 void foo() {
 globalFunc(???)  // how to explicityly access "outter this" pointer
 }

 }

 }


void globalFunc(Outer o) { }

class Outer
{
    final Outer outer() { return this; }

    class Inner
    {
       void foo() { globalFunc(outer); }
    }
}

Shammah Chancellor <Shammah_member pathlink.com> writes:

In article <op.suszt8qol2lsvj esi>, Vathix says...
On Sun, 31 Jul 2005 18:16:39 -0400, <d d.com> wrote:

 For non-static inner class, it contains a hidden "this" pointer to the  
 outter,
 how can I expplicitly access it?  Thanks.

 e.g.

 void globalFunc(Outter o) {
 o.blah ...;
 }

 class Outter {

 class Inner {

 void foo() {
 globalFunc(???)  // how to explicityly access "outter this" pointer
 }

 }

 }


void globalFunc(Outer o) { }

class Outer
{
    final Outer outer() { return this; }

    class Inner
    {
       void foo() { globalFunc(outer); }
    }
}


The attributes documentation lists final, but does not say what it does.  What
does it do?

-Sha

Vathix <chris dprogramming.com> writes:

 The attributes documentation lists final, but does not say what it  
 does.  What
 does it do?


It's not required here. It just means the function can't be overridden and  
doesn't need to be virtual unless it's overriding something. Non-virtual  
has a bit (a lot?) of a performance gain.

It's probably better to not use final in this case since you might want to  
override it in a derived class with a covariant (the derived type) return  
type. But sometimes I'll choose final if I don't expect to derive from the  
class, like if it's a private class.