From: ts <decoux@...>
Date: 2000-08-08T10:35:37+02:00
Subject: [ruby-talk:04339] Re: TABWTDI and Hash.new([])

>>>>> "H" == Hugh Sasse Staff Elec Eng <hgs@dmu.ac.uk> writes:

H> So when you wrote that function before, you had already expanded it in
H> your head beforehand, so the short form never made it into the file. 
H> Is that what you mean here?

 yes :-)

H> I have not delved into the source yet, so I don't see how this piece fits
H> into the discussion here :-)

 When you write :

       def x(a, b = [], *rest, &block)
       end

 ruby will create 2 nodes :
 
   * a node NODE_ARGS for (a, b = [], *rest)
   * a node NODE_BLOCK_ARG for &block

 the NODE_BLOCK_ARG make something equivalent to :

    block = nil
    if iterator?
       block = Proc.new
    end


Guy Decoux