Full closures for D

[Simas]

Janice Caron Wrote:

> 
> D is C-like, ...
> 

The D Language is : "Its focus is on combining the power and high performance of C and C++ with the programmer productivity of modern languages like Ruby and Python". This does't exclude a productiv language like perl.

> > However, I think it would be nice to get rid of the
> > delegate type declaration altogether and git ourselves an implicit
> > delegate argument
> 
> Generally speaking, I don't. Although that said, D already supports
> variadic functions, so one could declare a function as accepting a
> tuple, and then refer to the arguments as tuple[n]. I do not believe
> this would increase readability, however, in cases where functions are
> not actually variadic!

I think this is a helpful feature. 

> 
> >     auto base = "/path/to/dir/";
> >     auto absoluteDirs = map({ return base ~ $0; }, readdir(DIR));
> 
> Yuk!
> 
> Dollar zero? Yuk! Yuk! Yuk!
> 
> Please, no!

Once again. Really nice.