use Perl

Class("Car", {
    has: {
        leftRearWheel: {
            init: new Wheel(),
            isa: Wheel,
            is: rw,
            handles: "*"
        }
    }
})

to only allow Wheels in the attribute leftRearWheel and to delegate all of Wheel's methods to the leftRearWheel.

In other news:

• Joose is now hosted in the Moose svn
• Joose now supports the Moose JSON Storage format and allows round trips between Moose and Joose (at least for basic tests)
• Joose now works in IE and Opera
• Joose now supports class methods