• dennis luehring (39/39) Oct 26 2005 import std.stdio;
• Oskar Linde (7/13) Oct 26 2005 The compiler must know in which context the nested class should be creat...
• dennis luehring (6/31) Oct 26 2005 in the contex of "c"

dennis luehring <dl.soluz gmx.net> writes:

import std.stdio;

class Class
{
     this(){}
     class Method1
     {
	    this(){}
     	int parameter[2];
     	int result;
     	void call()
     	{
     		result = method1(parameter[0],parameter[1]);
     	}
     }

     int method1(int a, int b)
     {
     	return a + b;
     }
}

void main()
{
	Class c = new Class;
    	int x = c.method1(10,20);
    	writef("%d\n",x);

    	Class.Method1 m1 = new c.Method1();
    	m1.parameter[0] = 10;
    	m1.parameter[1] = 20;
    	m1.call();
    	writef("%d\n",m1.result);
}

i just try to write an simple oop-wrapper for an method
but i get this compile error:

"nested.d(29): no 'this' for nested class Method1"

from the d-docs
"A non-static nested class can only be instantiated when the necessary 
context pointer information is available"

i think there "is" a contex avaiable (through "c")

how can i solve the problem?

thx dennis

Oskar Linde <Oskar_member pathlink.com> writes:

In article <djo1km$280i$1 digitaldaemon.com>, dennis luehring says...
[snip code]
"nested.d(29): no 'this' for nested class Method1"

from the d-docs
"A non-static nested class can only be instantiated when the necessary 
context pointer information is available"

i think there "is" a contex avaiable (through "c")

The compiler must know in which context the nested class should be created.

how can i solve the problem?

The context has to be available as the current this.
You can only instanciate the nested class in this way from within a method of
the outer class.

/Oskar

dennis luehring <dl.soluz gmx.net> writes:

Oskar Linde wrote:
 In article <djo1km$280i$1 digitaldaemon.com>, dennis luehring says...
 [snip code]
 
"nested.d(29): no 'this' for nested class Method1"

 
from the d-docs

 
"A non-static nested class can only be instantiated when the necessary 
context pointer information is available"

i think there "is" a contex avaiable (through "c")

 
 The compiler must know in which context the nested class should be created.

in the contex of "c"

i don't understand why d can't see the contex in "new c.Method1"
c is the outer object(the contex) and Method1 is the inner class

wouldnt it be nice to have such a feature?

 
 
how can i solve the problem?

 
 
 The context has to be available as the current this.
 You can only instanciate the nested class in this way from within a method of
 the outer class.

that works for me - thx

 /Oskar