class SyntaxTree::DefNode

def format(q)
  params = self.params
  bodystmt = self.bodystmt
  q.group do
    q.group do
      q.text("def")
      q.text(" ") if target || name.comments.empty?
      if target
        q.format(target)
        q.format(CallOperatorFormatter.new(operator), stackable: false)
      end
      q.format(name)
      case params
      when Paren
        q.format(params)
      when Params
        q.format(params) if !params.empty? || params.comments.any?
      end
    end
    if endless?
      q.text(" =")
      q.group do
        q.indent do
          q.breakable_space
          q.format(bodystmt)
        end
      end
    else
      unless bodystmt.empty?
        q.indent do
          q.breakable_force
          q.format(bodystmt)
        end
      end
      q.breakable_force
      q.text("end")
    end
  end
end