On Monday, 21 January 2013 at 12:55:36 UTC, eles wrote:
On Saturday, 19 January 2013 at 01:35:58 UTC, Walter Bright
wrote:
On 1/18/2013 4:55 PM, Andrey wrote:
This all falls apart once you decide you need "friend" access.
What is wrong with this POV is that the original class no
longer has a word to say if she wants to be friended by someone.
In C++ the class has a word to say: if it does not declare:
"hey! you will be my friend!", then nobody can come there to
say: "hey! I consider myself your friend (even if you don't
want it), so I will mess up your internal state!"
Only if that class is in the same module.
This is being blown completely out of proportion.
A few things to consider:
- Lots of languages don't have access control at all, yet somehow
people use them without problem.
- As far as I can see, the DMD source has very few private
variables, yet very few (if any) bugs are caused by people
messing up other people's variables.
- If you have one class per module, D is no different to
C++/Java/C#.
