question with compile-time reflection

[Zhenya]

On Saturday, 9 March 2013 at 23:40:25 UTC, Zhenya wrote:
> Although of course I would want to know what's wrong with 
> constrait,because it protect doArray against incorrect using.
> I don't worry about effiency very much,I just wanted to right 
> n-dimensional tree of intervals.And for doing it I needed 
> n-dimensional array with opIndex like it.

sorry for my english(