object = ((ImmutableEnumMap<?, ?>) object).delegate;
    }
    return delegate.equals(object);
  }

  @Override
  UnmodifiableIterator<Entry<K, V>> entryIterator() {
    return Maps.unmodifiableEntryIterator(delegate.entrySet().iterator());
  }

  @Override
  boolean isPartialView() {
    return false;
  }

  // All callers of the constructor are restricted to <K extends Enum<K>>.
  @Override