class Vernier::StackTableHelpers::Stack

def each
  return enum_for(__method__) unless block_given?
  stack_idx = idx
  while stack_idx
    frame_idx = stack_table.stack_frame_idx(stack_idx)
    yield Frame.new(stack_table, frame_idx)
    stack_idx = stack_table.stack_parent_idx(stack_idx)
  end
end