DG loop combinator thinking

dg_loop_syntaxen.rb

# Hmmm
DG::loop_until { url.present? && chunks_done < 25 }.body do
  make_http_request(stuff, things, other_things).safe_callback do |blah|
    blah
  end
end.transform

# Yum
DG::loop_until(lambda { url.present? && chunks_done < 25 }) do
  make_http_request(stuff, things, other_things).safe_callback do |blah|
    blah
  end
end.transform

# Yuck
DG::loop.until(lambda { url.present? && chunks_done < 25 }) do
  make_http_request(stuff, things, other_things).safe_callback do |blah|
    blah
  end
end.transform

# Yay
DG::loop do
  make_http_request(stuff, things, other_things).safe_callback do |blah|
  end
end.until { url.present? && chunks_done < 25 }.transform

# Whut
expect {|x| x }.to_raise BoomError