Using closure in function scope to make "real" private class members

[forkit]

On Monday, 6 June 2022 at 00:07:53 UTC, zjh wrote:
> On Sunday, 5 June 2022 at 19:41:36 UTC, Dom Disc wrote:
>> [...]
> I usually don't use the `pointer` very much, and haven't used 
> `friend`.
> I'm not that complicated.
> I directly expose the `'members'` . If the `'private members'` 
> related to realization .They are of course `private`, avoid 
> unintentional use .
> Class only needs to expose a few `'functions + members'`, and 
> everything is OK
> Class is the smallest unit of encapsulation.
> `D` but do not add it. You do not know which code has changed 
> your `private variables` in the same module .
> It's so interesting.
>
>> Anybody can declare friends, without even touching the file
>
> I don't know .I haven't use `friend'.

Well, if you use D, then you do ;-)

Cause the module is the friend you will always have, no matter 
what ;-)