From: zuzu <sean.zuzu@...>
Date: 2004-10-18T21:39:40+09:00
Subject: Re: DID YOU KNOW? -- break can return a value?

On Mon, 18 Oct 2004 11:49:23 +0900, Dave Burt <burtdav@hotmail.com> wrote:
> "trans. (T. Onoma)" <transami@runbox.com> wrote...
> > An interesting tidbit I pickup today. Did you know that break can return a
> > value from it's block?
> >
> >  a = loop do
> >    break (1 + 1)
> >  end
> >
> >  puts a  #=> 4
> >
> 
> What platform gives that counterintuitive result? *grins*

by defining the variable "a" with code "loop", it is a Proc object, yes?

(sorry, i would test this myself except i'm away from my ruby console.)

(if so, i must simultaneously pronounce my dislike for imperative loop
structures, and my praise for ruby perceiving all code as in blocks /
procedures (functional/subroutine style).)

also, quite right dave, what gives with the "trailing off the edge of
a procedure 'return' " producing a "value" of 4?  perhaps that's the
point; what exactly is going on when passing arguments into the break
function/keyword?

peace,
-z