From: Josh Cheek <josh.cheek@...>
Date: 2010-05-04T19:14:54+09:00
Subject: Re: * splat error

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On Tue, May 4, 2010 at 4:31 AM, Ruby Knight <kerwinfranks@yahoo.co.uk>wrote:

> >
> > def s(a,*b,c) end
> >             ^
> > 11:16:32 test_2$
> >
> > Cheers
> >
> > robert
>
>
> Hi Robert,
>
> I tried putting end after the last brace but didn't work. I am assuming
> there is more to that ^ than just for illustrative purposes. Could you
> explain to me why my code is not working? THanks!
>
> --
> Posted via http://www.ruby-forum.com/.
>
>
Robert is saying that it works in 1.9.1 (see how it says Syntax OK), but not
1.8.7 (where it pulls up the same error you had)


For 1.9, you can do something like this

def split_apart( first , *splat )
  raise ArgumentError.new('wrong number of arguments (1 for 2)') if
splat.size.zero?
  last = splat.pop
  puts "first: #{first.inspect}, splat: #{splat.inspect}, last:
#{last.inspect}"
end

Though I probably wouldn't bother with the error myself, unless writing code
for other people.

This is similar to how Rails' find method works, it checks the last argument
to see if it is a hash, then if it is, it pops it off (look at their example
in the comments)

http://github.com/rails/rails/blob/master/activesupport/lib/active_support/core_ext/array/extract_options.rb

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