Perl6::MetaModel Diagrams

The example Point & Point3D classes from Apocalypse 12.

    
    class Point {
        has $.x;
        has $.y is rw;
        method clear {
            $.x = 0; $.y = 0;
        }
    }
    
    class Point3D is Point {
        has $:z;
        method clear {
            $:z = 0;
            next METHOD;
        }
    }
    
    

Note how the Point class hierarchy is mirrored by an eigenclass heirarchy. These eigenclasses are automatically created, and are where any class methods would be stored.