forked from: XML appendChild

/**
 * Copyright wh0 ( http://wonderfl.net/user/wh0 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/9zK6
 */

// forked from wh0's XML appendChild
package {
    import com.actionscriptbible.Example;
    public class FlashTest extends Example {
        
        public function FlashTest() {
            trace2 = trace;
            new C().foo();
        }
        
    }
}

internal var trace2:Function;
internal var NOTHING:XML = XML('');

internal class A {
    
    public function foo():XML {
        var x:XML = <foo />;
        x.appendChild(
            bar('one') +
            NOTHING
        );
        return x;
    }
    
    protected function bar(id:String):XML {
        return (<bar id={id} />);
    }
    
}

internal class B extends A {
    
    override public function foo():XML {
        var x:XML = super.foo();
        x.appendChild(
            bar('two') +
            NOTHING
        );
        return x;
    }
    
}

internal class C extends B {
    
    override public function foo():XML {
        var x:XML = super.foo();
        x.normalize();
        trace2('C.foo starts with:\n' + x + '\n');
        x.appendChild(
            bar('three')
        );
        trace2('C.foo returns:\n' + x + '\n');
        return x;
    }
    
}