Required Reading: "How Non-Member Functions Improve Encapsulation"

[Steven Schveighoffer]

On 10/30/17 1:40 PM, H. S. Teoh wrote:

> Page 2 of this article is essentially another reason why UFCS in D
> totally rawkz.  In D, we can take Scott's advice *without* suffering
> from syntactic inconsistency between member and non-member functions:

You're missing a key piece here, in that anotherMethod does not ensure 
the encapsulation of C. It can call 'method' just fine.

Yes, it's great that UFCS can help with encapsulation via external 
methods, but it's going to be difficult to prevent access to private 
data, you have to use 2 modules. Not a very clean solution IMO.

-Steve