From: Kevin Ballard <kballard@...>
Date: 2005-10-19T03:42:02+09:00
Subject: Re: The Ruby Way to build an object unless nil?

I'm not sure what the ideal is, but this is certainly more terse:

def mymethod
  a = someobjectreference('a')
  b = a.some_attribute unless a.nil?
  c = b.some_attribute unless b.nil?
  c.dosomething unless c.nil?
end

If any of those are nil, the rest of the statements will evaluate to
nil as well.