D - more power than (really) needed !

[Sean Kelly]

David Medlock wrote:
> 
> Outside of simple Shape examples in textbooks, implementation 
> inheritance has largely been a failure for reusable or easy to maintain 
> code.  OOP is supposed to be about black box reusability of objects,ie. 
> components but then its main claim to fame is a way to break that 
> abstraction.

Inheritance isn't even much of a problem so long as the trees remain 
very shallow, but things tend to fall apart beyond that.  I think it 
says something about the deep inheritance model that the design work is 
usually done via an external tool such as UML.  Also, I believe that it 
should be possible to figure out what's going on through code 
inspection, and complex object hierarchies make this extremely difficult.


Sean