(gdb) p *todo->vtable
$2 = {
  _namespace = 0x80000, 
  base_type = 4504161048, 
  whoami = 0x0, 
  flags = 0, 
  provides_str = 0x0, 
  isa_hash = 0x80000, 
  pmc_class = 0x10c780ca8, 
  mro = 0x107ec1048, 
  attribute_defs = 0x0, 
  ro_variant_vtable = 0x0, 
  absolute = 0x80000, 
  add = 0x10c780cf8, 
  add_attribute = 0x1099137f0, 
  add_float = 0, 
  add_int = 0, 
  add_method = 0x80000, 
  add_parent = 0x10c780d20, 
  add_role = 0x10a589928, 
  add_vtable_override = 0, 
  assign_pmc = 0, 
  assign_string_native = 0x80000, 
  can = 0x10c780d48, 
  clone = 0, 
  clone_pmc = 0, 
  cmp = 0, 
  cmp_num = 0x80000, 
  cmp_pmc = 0x10c780d70, 
  cmp_string = 0x10a589940, 
  concatenate = 0, 
  concatenate_str = 0, 
  decrement = 0x80000, 
  defined = 0x10c780d98, 
  defined_keyed = 0x107ec0f30, 
  defined_keyed_int = 0, 
  defined_keyed_str = 0, 
  delete_keyed = 0x80000, 
  delete_keyed_int = 0x10c780dc0, 
  delete_keyed_str = 0, 
  delprop = 0, 
  destroy = 0, 
  divide = 0x80000, 
  divide_float = 0x10c780de8, 
  divide_int = 0x10a589958, 
  does = 0, 
  does_pmc = 0, 
  elements = 0x80000, 
  exists_keyed = 0x10c780e10, 
  exists_keyed_int = 0x10a589970, 
  exists_keyed_str = 0, 
  find_method = 0, 
  floor_divide = 0x80000, 
  floor_divide_float = 0x10c780e38, 
  floor_divide_int = 0x107ec0e18, 
  freeze = 0, 
  get_attr_keyed = 0, 
  get_attr_str = 0x80000, 
  get_bool = 0x10c780e60, 
  get_class = 0, 
  get_integer = 0, 
  get_integer_keyed = 0, 
  get_integer_keyed_int = 0x80000, 
  get_integer_keyed_str = 0x10c780e88, 
  get_iter = 0x1099137c0, 
  get_namespace = 0, 
  get_number = 0, 
  get_number_keyed = 0x80000, 
  get_number_keyed_int = 0x10c780eb0, 
  get_number_keyed_str = 0x107ec0d00, 
  get_pmc = 0, 
  get_pmc_keyed = 0, 
  get_pmc_keyed_int = 0x80000, 
  get_pmc_keyed_str = 0x10c780ed8, 
  get_pointer = 0x109913790, 
  get_pointer_keyed = 0, 
  get_pointer_keyed_int = 0, 
  get_pointer_keyed_str = 0x80000, 
  get_repr = 0x10c780f00, 
  get_string = 0x109a333a0, 
  get_string_keyed = 0, 
  get_string_keyed_int = 0, 
  get_string_keyed_str = 0x80000, 
  getprop = 0x10c780f28, 
  getprops = 0x10a582f70, 
  hashvalue = 0, 
  i_absolute = 0, 
  i_add = 0x80000, 
  i_add_float = 0x10c780f50, 
  i_add_int = 0x107ec0be8, 
  i_concatenate = 0, 
  i_concatenate_str = 0, 
  i_divide = 0x80000, 
  i_divide_float = 0x10c780f78, 
  i_divide_int = 0x10a589988, 
  i_floor_divide = 0, 
  i_floor_divide_float = 0, 
  i_floor_divide_int = 0x80000, 
  i_logical_not = 0x10c780fa0, 
  i_modulus = 0x10a5899a0, 
  i_modulus_float = 0, 
  i_modulus_int = 0, 
  i_multiply = 0x80000, 
  i_multiply_float = 0x10c780fc8, 
  i_multiply_int = 0x10a587728, 
  i_neg = 0, 
  i_repeat = 0, 
  i_repeat_int = 0x80000, 
  i_subtract = 0x10c780ff0, 
  i_subtract_float = 0x10a5899b8, 
  i_subtract_int = 0, 
  increment = 0, 
  init = 0x80000, 
  init_pmc = 0x10c781018, 
  inspect = 0, 
  inspect_str = 0x10c781068, 
  instantiate = 0, 
  invoke = 0x80000, 
  is_equal = 0x10c781040, 
  is_equal_num = 0x10a587730, 
  is_equal_string = 0, 
  is_same = 0, 
  isa = 0x80000, 
  isa_pmc = 0x10c781068, 
  logical_and = 0, 
  logical_not = 0x10c7810b8, 
  logical_or = 0, 
  logical_xor = 0x80000, 
  mark = 0x10c781090, 
  modulus = 0x10a587738, 
  modulus_float = 0, 
  modulus_int = 0, 
  morph = 0x80000, 
  multiply = 0x10c7810b8, 
  multiply_float = 0, 
  multiply_int = 0x10c781108, 
  name = 0, 
  neg = 0x80000, 
  pop_float = 0x10c7810e0, 
  pop_integer = 0x10a587740, 
  pop_pmc = 0, 
  pop_string = 0, 
  push_float = 0x80000, 
  push_integer = 0x10c781108, 
  push_pmc = 0, 
  push_string = 0, 
  remove_attribute = 0, 
  remove_method = 0x80000, 
  remove_parent = 0x10c781130, 
  remove_role = 0, 
  remove_vtable_override = 0, 
  repeat = 0, 
  repeat_int = 0x80000, 
  set_attr_keyed = 0x10c781158, 
  set_attr_str = 0, 
  set_bool = 0x10c7811a8, 
  set_integer_keyed = 0, 
  set_integer_keyed_int = 0x80000, 
  set_integer_keyed_str = 0x10c781180, 
  set_integer_native = 0x10a587748, 
  set_number_keyed = 0, 
  set_number_keyed_int = 0, 
  set_number_keyed_str = 0x80000, 
  set_number_native = 0x10c7811a8, 
  set_pmc = 0, 
  set_pmc_keyed = 0x10c7811f8, 
  set_pmc_keyed_int = 0, 
  set_pmc_keyed_str = 0x80000, 
  set_pointer = 0x10c7811d0, 
  set_pointer_keyed = 0x10a587750, 
  set_pointer_keyed_int = 0, 
  set_pointer_keyed_str = 0, 
  set_string_keyed = 0x44500200, 
  set_string_keyed_int = 0x10188a400, 
  set_string_keyed_str = 0x109a33390, 
  set_string_native = 0, 
  setprop = 0, 
  share = 0x4500200, 
  share_ro = 0x101881400, 
  shift_float = 0x10a5899d0, 
  shift_integer = 0, 
  shift_pmc = 0, 
  shift_string = 0x200, 
  splice = 0x101897400, 
  substr = 0x10a587758, 
  substr_str = 0, 
  subtract = 0, 
  subtract_float = 0x4100200, 
  subtract_int = 0x1018ffa00, 
  thaw = 0x10a587760, 
  thawfinish = 0, 
  type = 0, 
  unshift_float = 0x4100200, 
  unshift_integer = 0x1018ffa00, 
  unshift_pmc = 0x10a587768, 
  unshift_string = 0, 
  visit = 0, 
  attr_size = 68157952
}