From: Eric Hodel <drbrain@...7.net>
Date: 2006-01-20T06:34:28+09:00
Subject: Re: Dynamic class instantiation

On Jan 19, 2006, at 1:23 PM, Jason wrote:

> unknown wrote:
>>
>>      def klass_stamp(hierachy, *a, &b)
>>        ancestors = hierachy.split(%r/::/)
>>        parent = Object
>>        while((child = ancestors.shift))
>>          klass = parent.const_get child
>>          parent = klass
>>        end
>>        klass::new(*a, &b)
>>      end
>>
>>
>>      class A; class B;end; end
>>
>>      klass_stamp 'A::B'
>>
>> hth.
>>
>> -a
>
> Actually, I just found this, which is a little simpler, but looks like
> it does the same :)
>
> mod = Module
> name.split(/::/).each {|m| mod = mod.const_get(m) }
> m = mod.new

def Object.path2class(path) # matches a C method that is not exported  
into Ruby
   return path.split('::').inject(Object) { |k,n| k.const_get n }
end

m = Object.path2class('Test::MyClass').new

> # Call my method
> m.do_something

-- 
Eric Hodel - drbrain@segment7.net - http://segment7.net
This implementation is HODEL-HASH-9600 compliant

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