class Parser::Builders::Default

def restarg(star_t, name_t=nil) 

def restarg(star_t, name_t=nil)
  if name_t
    n(:restarg, [ value(name_t).to_sym ],
      arg_prefix_map(star_t, name_t))
  else
    n0(:restarg,
      arg_prefix_map(star_t))
  end
end