module Concurrent::Dereferenceable

def apply_deref_options(value) # :nodoc:
  return nil if value.nil?
  return value if @do_nothing_on_deref
  value = value
  value = @copy_on_deref.call(value) if @copy_on_deref
  value = value.dup if @dup_on_deref
  value = value.freeze if @freeze_on_deref
  value
end