multiple inheritance

[Namespace]

I made a compromise:

[code]
import std.stdio;

interface Transformable {
public:
	void transform();
}

mixin template Transform() {
public:
	this() {
		writeln("Transform Ctor");
	}

	void transform() {
		writeln("transformiere");
	}
}

abstract class Drawable {
public:
	void draw() {
		writeln("zeichne");
	}
}

class Shape : Drawable, Transformable {
public:
	mixin Transform;

	this() {
		writeln("Shape CTor");
	}
}

void test_drawable(Drawable d) {
	d.draw();
}

void test_transformable(Transformable t) {
	t.transform();
}

void main() {
	Shape s = new Shape();

	test_drawable(s);
	test_transformable(s);
}
[/code]

Any suggestions?