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

[Commander Zot]

On Friday, 3 June 2022 at 12:06:01 UTC, zjh wrote:
> On Friday, 3 June 2022 at 10:20:08 UTC, bauss wrote:
>
>> class Foo
>> {
>>     private class string _id; // Private to the class
>> }
>
>> class Foo
>> {
>>     private module string _id; // Private to the module
>>     private int _number; // Same as "private module" since 
>> that's the default
>> }
>> ```
>
>
> I think it is `worth adding`. Simply adding some code can 
> distinguish between `class` level and `module` level. It is 
> very friendly for those familiar with `C++'s` class level 
> encapsulation.

it adds more special cases to metaprogramming for practically no 
benefit.