struct's fields are all public? no access control?

[12345swordy]

On Friday, 2 April 2021 at 15:56:43 UTC, Steven Schveighoffer 
wrote:
> On 4/2/21 11:42 AM, Adam D. Ruppe wrote:
>> On Friday, 2 April 2021 at 15:35:03 UTC, mw wrote:
>>> Is this a compiler bug, or by language design?
>> 
>> https://dlang.org/spec/attribute.html#visibility_attributes
>> 
>> "Symbols with private visibility can only be accessed from 
>> within the same module. Private member functions are 
>> implicitly final and cannot be overridden."
>> 
>> 
>> Key word there being "module".
>
> To exapand on this, this is D's answer to "friend" functions in 
> C++.
>
> -Steve

We could introduce "this private", via DIP, but there isn't much 
motivation behind it as the workaround is define the struct in 
one module and define the function in another function. The 
private behave differently from other languages does not seemed 
to effect many people here.

-Alex