From: Robert Klemme <shortcutter@...>
Date: 2010-04-25T19:40:06+09:00
Subject: Re: Defining your own typecaster

On 04/25/2010 02:01 AM, Vinícius Baggio Fuentes wrote:
> [Note:  parts of this message were removed to make it a legal post.]
> 
> I've seen the following declaration, which I think it is valid:
> 
> module Kernel
>   def Foo(*objs)
>     Foo.new(objs)
>   end
> end
> 
> I'm not sure if there's another way one could achieve that, but works for
> the purpose.

That's typically how they are done.  And I believe methods are also made 
private to disallow calling them with self:

irb(main):001:0> Integer("1")
=> 1
irb(main):002:0> self.Integer("1")
NoMethodError: private method `Integer' called for main:Object
	from (irb):2
	from /usr/local/bin/irb19:12:in `<main>'
irb(main):003:0>

And you should probably forward the block if given.  So the complete 
idiom looks like this:

module Kernel
   def Foo(*objs, &b)
     Foo.new(objs, &b)
   end
   private :Foo
end

Cheers

	robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/