'partial' keyword in C# is very good for project , what's the same thing in D?

[deadalnix via Digitalmars-d]

On Monday, 10 November 2014 at 10:21:34 UTC, Regan Heath wrote:
> On Fri, 31 Oct 2014 09:30:25 -0000, Dejan Lekic 
> <dejan.lekic at gmail.com> wrote:
>> In D apps I work on I prefer all my classes in a single 
>> module, as is common "D way", or shall I call it "modular way"?
>
> Sure, but that's not the point of partial.  It's almost never 
> used by the programmer directly, and when it is used you almost 
> never need to look at the generated partial class code as "it 
> just works".  So, you effectively get what you "prefer" but you 
> also get clean separation between generated and user code, 
> which is very important if the generated code needs to be 
> re-generated and it also means the user code stays simpler, 
> cleaner and easier to work with.
>
> Basically it's just a good idea(TM).  Unfortunately as many 
> have said, it's not something D2.0 is likely to see.  String 
> mixins aren't the nicest thing to use, but at least they can 
> achieve the same/similar thing.
>
> R

I don't get how the same can't be achieved with mixin template
for instance.