OK,
My curiosity got the better of me and I looked it up. Rails does this:
def constantize(camel_cased_word)
unless /\A(?:::)?([A-Z]\w*(?:::[A-Z]\w*)*)\z/ =~ camel_cased_word
raise NameError, "#{camel_cased_word.inspect} is not a valid constant
name!"
end
Object.module_eval("::#{$1}", __FILE__, __LINE__)
end
Which doesn't seem as good as what Kevin is showing.
Anyone have any thoughts?
Rob
On Fri, Apr 18, 2008 at 11:09 AM, Kevin Clark <[EMAIL PROTECTED]> wrote:
>
> On Fri, Apr 18, 2008 at 10:46 AM, Rob Kaufman <[EMAIL PROTECTED]> wrote:
> > Its worth noting that Kevin's method is Ruby, where constantize is Rails
> > sugar.
> >
> > Cheers,
> > Rob
>
> Also, I think constantize is implemented like this:
>
> class String
> def constantize
> self.split("::").inject(Object) do |enclosing_class, name_segment|
> enclosing_class.const_get(name_segment)
> end
> end
> end
>
> (atleast that's how I'd implement it)
>
> So it actually takes strings that may have namespacing and grabs the
> constant properly. Pure `const_get` can't do that.
>
> --
> Kevin Clark
> http://glu.ttono.us
>
> >
>
--~--~---------~--~----~------------~-------~--~----~
SD Ruby mailing list
[email protected]
http://groups.google.com/group/sdruby
-~----------~----~----~----~------~----~------~--~---
