Is there any way to create something like this?

[RenatoUtsch]

Hello,

I was trying to imagine how to do a thing such the one as below 
(or similar), because it would be great for the project I am 
creating...

Is there any way to create some kind of object that resembles 
different objects (like a superclass with the subclasses, but 
with transparent access to the subclasses new methods)?

For example:

[code]
void main() {
     GeneralLibrary library = createLibrary("1.0");
     GeneralLibrary library11 = createLibrary("1.1");
     GeneralLibrary library12 = createLibrary("1.2");
     GeneralLibrary library2 = createLibrary("2.0");

     library.func1(); // Should work
     library.func11(); // Should fail
     library.func12(); // Should fail
     library3.func2(); // Should fail

     library2.func1(); // Should work
     library2.func11(); // Should work
     library21.func12(); // Should fail
     library3.func2(); // Should fail

     library2.func1(); // Should work
     library2.func11(); // Should work
     library2.func12(); // Should work
     library3.func2(); // Should fail

     library3.func1(); // Should fail
     library3.func11(); // Should fail
     library3.func12(); // Should fail
     library3.func2(); // Should work
}

class Library_1_0 {
     void func1() {}
}

class Library_1_1 : Library_1_0 {
     void func11() {}
}

class Library_1_2 : Library_1_1 {
     void func12() {}
}

class Library_2_0 {
     void func2() {}
}
[/code]

Is there any way to make the GeneralLibrary class and the 
createLibrary() (or even better, make the GeneralLibrary 
constructor do that) to work with this kind of construction?