class Asciidoctor::AbstractNode

def initialize parent, context, opts = {}
  # document is a special case, should refer to itself
  if context == :document
    @document = self
  elsif parent
    @document = (@parent = parent).document
  end
  @node_name = (@context = context).to_s
  # NOTE the value of the :attributes option may be nil on an Inline node
  @attributes = (attrs = opts[:attributes]) ? attrs.merge : {}
  @passthroughs = []
end