From: Ross Bamford <rosco@...>
Date: 2006-01-04T08:03:57+09:00
Subject: Re: Implicit block parameter?

On Tue, 03 Jan 2006 22:01:02 -0000, Andrew McGuinness  
<a.mcguinness@ntlworld.com> wrote:

> Jacob Fugal wrote:
>> On 1/3/06, Andrew McGuinness <a.mcguinness@ntlworld.com> wrote:
>>
>>> Another way of dealing with it would be if it were easier to get from a
>>> method to a Proc object, so instead of, say
>>>
>>> heads = queues.map { |x| x.first }
>>>
>>> You could have something more like:
>>>
>>> heads = queues.map( &:first )
>>   Take a look at this:
>>    http://blogs.pragprog.com/cgi-bin/pragdave.cgi/Tech/Ruby/ToProc.rdoc
>>
> That's good - if I'm mad, at least I'm not alone.
>
> And I didn't realise that  thing.each( &method(:stuff) )  works already  
> (the same as  thing.each( &method(:stuff).to_proc )  )

:D

Yeah, AUIU '&' works a bit like splat but for procs (with to_proc). For a  
silly example:

	class String
	  def to_proc
	    lambda { eval self }
	  end
	end

	[1,2,3].each &"puts it"

gives:

	1
	2
	3

	=> [1, 2, 3]

-- 
Ross Bamford - rosco@roscopeco.remove.co.uk