From: Jim Weirich <jim@...>
Date: 2006-04-10T04:45:59+09:00
Subject: Re: Dumb reflection problem - create object from String

Robert Dober wrote:
> On 4/9/06, Brian Parkinson <parkI@whatevernot.com> wrote:
>>
>> parki...
> 
> 
> I am afraid that the only  one-liner is eval :(
> 
> suppose s contains the name of your class
> Module.const_get s does not work unless your class is defined on top 
> level.
> In oder to have the *same* semantics as
> 
>    eval(s).new
> 
> we have to write
> 
> m = Module
> s.split(%r{::|\.}).each do
>     |name|
>     m = m.const_get(name)
> end
> m.new

  s.split('::').inject(Object) { |s,k| s.const_get(k) }.new

-- Jim Weirich

-- 
Posted via http://www.ruby-forum.com/.