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

[Walter Bright via Digitalmars-d]

On 10/29/2014 7:01 AM, Gary Willoughby wrote:
> On Wednesday, 29 October 2014 at 12:55:01 UTC, FrankLike wrote:
>> The same thing in D should be done,now.Otherwise，no big projects can be done
>> like C#. Add another keyword,and update the compiler.
>
> Large projects are already being developed using D so your argument is wrong.
> Also no new keywords are being added to the language because D is trying to
> achieve stability right now.
>
> You can achieve what you desire using mixins.

Either string mixins, template mixins, alias this or opDispatch.