On 10/25/2017 12:39 AM, Satoshi wrote:
Thanks, but I see there 3 problems:
1. this example enforce users to use composition instead of inheritance when
they wants to create custom descendant.
I don't see an issue with that.
2. multiple dispatch levels. Extending the ExtendView in another lib we get
triple dispatch for each method.
That's only if you want to hide the interface base class implementation, and
only if you want to *also* call the base function. There's single dispatch if
overriding, or not overriding, the base function. You can also inherit directly
from LibraryView, and there'd be only one dispatch.
