Pseudo namespaces

[Tofu Ninja via Digitalmars-d]

On Thursday, 3 December 2015 at 20:51:02 UTC, Andrei Alexandrescu 
wrote:
> I vaguely remembered I saw something like this a while ago:
>
> http://dpaste.dzfl.pl/f11894a098c6
>
> The trick could be more fluent, but it might have merit. Has 
> anyone explored it? Is it a viable candidate for becoming a D 
> idiom?
>
> I was looking at this in conjunction with choosing a naming 
> convention for container functions. Some functions are "stable" 
> so that would be part of their name, e.g. insertStable or 
> stableInsert. With this, it's possible to write 
> lst.stable.insert.
>
>
> Andrei

Honestly I feel like scoping in D is kinda broken. IMO they need 
to be cleaned up a bit, with some kind of meaningful 
formalization of scopes, how to interact with them properly and 
what not. Also I think to do what you want with out fragile hacks 
would require some type of named scope concept added to the 
language.

Lots of things in the language introduce scopes, but there is no 
formalization on them. Modules, packages, named template 
instantiations, named mixin templates, structs, classes, unions, 
and anonymous scopes with {}. But it seems like they all have 
slightly different rules. There are a lot of things that have 
scopes but opDispatch only works on classes and structs, why? 
opDispatch is a scope thing, not a class or struct thing. Mixin 
templates have weird as fuck scope rules as well, and really 
should never have been added to the language. {} in a function 
introduces a scope but I cant name it. In a template if it has a 
member with the name as the template, the instantiation forwards 
to that member, but in structs alias this servers a similar 
purpose.

All these things should be related with some kind of formalized 
scope concept. I should be able to do "alias scopeName = { // 
scope stuff };" or "int scopeName.foo = 5;". Or in your problem, 
"void stable.fun() {...}". Also any scope should be able to have 
an opDispatch.

Scopes are a bit fucked up in D.

Bit of a rant, sorry..