Cloning by copy-constructors

    //http://stackoverflow.com/questions/78536/deep-cloning-objects-in-c-sharp/78551#comment11411812_78577
    class CloningTest
    {
        public static void PerformTests()
        {
            Type1 t = new Type1();
            t.x = 1; t.y = 11; t.c = new Type2();
            t.c.x = 2; t.c.z = 222; t.c.q = new Type3();
            t.c.q.x = 3; t.c.q.w = 3333;
            Type1 k = new Type1(t);
            k.x = 9; k.c.z = 666;
            System.Console.WriteLine(t.x + " ; " + t.c.z);
        }

        abstract class AbstractBaseType
        {
            public int x;
            public abstract void DummyMethod();
            public AbstractBaseType() { }
            public AbstractBaseType(AbstractBaseType src) { x = src.x; }
        }
        class Type1 : AbstractBaseType
        {
            public int y; public Type2 c;
            public override void DummyMethod() { }
            public Type1() { x = 0; }
            public Type1(Type1 src) : base(src) { y = src.y; c = new Type2(src.c); }
        }
        class Type2 : AbstractBaseType
        {
            public int z; public Type3 q;
            public override void DummyMethod() { }
            public Type2() { }
            public Type2(Type2 src) : base(src) { z = src.z; q = new Type3(src.q); }
        }
        class Type3 : AbstractBaseType
        {
            public int w;
            public override void DummyMethod() { }
            public Type3() { }
            public Type3(Type3 src) : base(src) { w = src.w; }
        }
    }