Polymorphism: Difference between revisions

=={{header|Raku}}==

(formerly Perl 6)

All appropriate constructors, initializers, accessors, and destructors are provided by default, but may be explicitly declared for flexibility.

To create only readonly accessors for better encapsulation, leave out all the "is rw" traits.

has Real $.x is rw = 0;

has Real $.y is rw = 0;

}

 

has Point $.p is rw = Point.new;

has Real $.r is rw = 0;

}