From: Tim Pease <tim.pease@...>
Date: 2007-08-21T11:43:45+09:00
Subject: Re: get a class from its name

On 8/20/07, David A. Black <dblack@rubypal.com> wrote:
> Hi --
>
> On Tue, 21 Aug 2007, Rolando Abarca wrote:
>
> > This is how i'm currently getting a class object from a name:
> >
> >       cname = "A::B::C::D"
> >       klass = cname.split("::").inject(Kernel) {|a,b| a.const_get(b)}
> >
> > I think it's pretty elegant, but I'm always happy to hear other ways to do it
> > ;-)
> > Anyone does this in some other way? (I don't want to eval code...)
>
> I think it's usually done the way you've got it there. It's one of
> those things that people write over and over (like map_with_index and
> singleton_method), hopefully some day to enter the core as
> const_get_deep or something.
>

"A::B::C::D".to_class

It could just be a wrapper for the core method rb_path2class -- which
does the same thing in Ruby C API land.

Blessings,
TwP