On Monday, 17 August 2015 at 06:59:51 UTC, BBasile wrote:
On Monday, 17 August 2015 at 05:57:52 UTC, Ozan wrote:
Hi
[...]
Is there any way to get real OOP with D?
Regards, Ozan
Can you name an OOP oriented language that allows this ? Your
example is eroneous OOP.
The 2 other answers you 've got (the first using an interface
and the second using an abstract class) are valid OOP.
One of the fundamental concept OOP is that a function defined
in a class exists also in its subclasses. So how do you expect
`greeting()` to exist in Family if it's only defined in its
sub-classes ?
You can verify that with the 'Liskov substitution principle'
(https://en.wikipedia.org/wiki/Liskov_substitution_principle).
Actually your sample violates this principle.
Languages like Groovy or JavaScript (with the help of frameworks
;-)
And I believe many more the newer ones. But that's not the point.
And... This was not a criticism against D (... "bad D, has no
understanding of OOP. Boahh" ;-)
It was only a question about handling of a typical OOP problem in
a class-typed implementation of OOP like D has. Thanks to every
existing or new creative programming language, today we have so
many other ways to solve our programming problems.
Regards Ozan
