module ActionView::Helpers::CaptureHelper

def capture_with_haml(*args, &block)
  if Haml::Helpers.block_is_haml?(block)
    #double assignment is to avoid warnings
    _hamlout = _hamlout = eval('_hamlout', block.binding) # Necessary since capture_haml checks _hamlout
    str = capture_haml(*args, &block)
    # NonCattingString is present in Rails less than 3.1.0. When support
    # for 3.0 is dropped, this can be removed.
    return ActionView::NonConcattingString.new(str) if str && defined?(ActionView::NonConcattingString)
    return str
  else
    capture_without_haml(*args, &block)
  end
end