From: Elliot Temple <curi@...>
Date: 2006-06-16T15:29:22+09:00
Subject: Re: Symbol#to_proc Problem


On Jun 15, 2006, at 9:44 PM, Logan Capaldo wrote:

> Yeah I don't believe it's possible to have this work both ways.
>
> You could do
>
> class Symbol
>   def unary_meth
>     lambda { |obj| obj.send(self) }
>   end
>
>   def nary_meth
>     lambda { |obj, *args| obj.send(self, *args) }
>   end
> end
>
> [[1,2,3], [4,5,6]].map &:reverse.unary_meth
>
> { 1=2, 3=>4 }.map &:foo.nary_meth
>
> This is one of those cases where you can't have your cake and eat  
> it too.

that is helpful, thanks

is there a reason it's important for *args to force an array to split  
up, instead of just being empty?

-- Elliot Temple
http://www.curi.us/blog/