passing parameter as reference

you're welcome.

Kglad, I have made some expirements, as I thinked variable are passed
as reference only if they aren't primitive data type like Number. I
found a way to pass this limitation passing the reference of the
calling class and the name of the property.
thank you for your answer to my question
Rob

This is the test code


// wrong! the trace return 0
package {
public class A {
public var _sum:Number;

public function A(){
_sum=0;
}
}
}
package {
public class B {
public static function
sum(num1:Number,num2:Number,_result:Number):Boolean{
_result=num1+num2;
return true;
}
}
}

package {
import flash.display.MovieClip;
//
public class Test extends MovieClip{
//
public function Test():void {
var a:A = new A();
B.sum(5,4,a._sum);
trace(a._sum); // return 0
}
}
}

// correct! the trace return 9
package {
public class A {
public var _sum:Number;

public function A(){
_sum=0;
}
}
}
package {
public class B {
public static function
sum(num1:Number,num2:Number,resultObj,varName):Boolean{
resultObj[varName]=num1+num2;
return true;
}
}
}

package {
import flash.display.MovieClip;
//
public class Test extends MovieClip{
//
public function Test():void {
var a:A = new A();
B.sum(5,4,a,"_sum"); // return 9
trace(a._sum);
}
}
}

if you're using a static method, you don't even need to pass an object. so, that code (if it were cleaned) would work.

On Fri, 28 Dec 2007 15:45:38 +0000 (UTC), "kglad"
<webforumsuser@macromedia.com> wrote:

>you can pass objects to class methods.

do you mean just like this example?

package {
import B;
class A {
public var dist:Number;

public function A(){
var done:Boolean = B.calcDist(a,b,this.dist);
}
}
}

package {
class B {

public static function calcDist(a:Vector2D,
b:Vector2D, result:Number):Boolen {
result=a.getSum(b);
return true;
}
}
}

Ok I will try
Thanks

you can pass objects to class methods.