From: "ara.t.howard" <ara.t.howard@...>
Date: 2008-07-04T05:11:43+09:00
Subject: Re: Parameter name reflection


On Jul 3, 2008, at 1:43 PM, Oliver Saunders wrote:

> If I declare
>
> def foo(a, b)
> end
>
> What code should I use to find the names of the parameters?
> I only see these methods available on a Method object.
> ["[]", "arity", "call", "to_proc", "unbind"]
>
> For instance in PHP I could do this
>
> function foo($a, $b) { }
> $ref = new ReflectionFunction('foo')
> $ref->getParameters()[0]->getName(); // a
> $ref->getParameters()[1]->getName(); // b
> --  
> Posted via http://www.ruby-forum.com/.
>


cfp:~ > cat a.rb

def foo a, b
   p local_variables
end

foo 4, 2
cfp:~ > ruby a.rb
["a", "b"]


as to why you'd want to do this though - i've no idea.  why not use  
options?

   def foo options = {}
   end

    foo :a => 4, :b => 2

??

a @ http://codeforpeople.com/
--
we can deny everything, except that we have the possibility of being  
better. simply reflect on that.
h.h. the 14th dalai lama