class Opal::Nodes::InlineArgs

def add_arg(arg)
  if arg[1]
    arg_name = variable(arg[1].to_sym)
    scope.add_arg(arg_name)
  end
end

def arg_names
  done_kwargs = false
  children.inject([]) do |result, child|
    case child.type
    when :kwarg, :kwoptarg, :kwrestarg
      unless done_kwargs
        done_kwargs = true
        result << '$kwargs'
      end
      add_arg(child)
    when :mlhs
      tmp = scope.next_temp
      result << tmp
      scope.mlhs_mapping[child] = tmp
    when :arg, :optarg
      arg_name = variable(child[1]).to_s
      if !child.meta[:inline] && arg_name[0] != '$'
        arg_name = "$#{arg_name}"
      end
      result << arg_name
      add_arg(child)
    when :restarg
      # To make function.length working
      # in cases like def m(*rest)
      tmp_arg_name = scope.next_temp + "_rest"
      result << tmp_arg_name
      add_arg(child)
    else
      raise "Unknown argument type #{child.inspect}"
    end
    result
  end
end

def compile
  push(arg_names.join(', '))
end