return newHasher(input.remaining()).putBytes(input).hash();
  }

  /** In-memory ByteBuffer-based implementation of {@link Hasher}. */
  private final class ByteBufferHasher extends AbstractHasher {
    ByteBuffer buffer;

    ByteBufferHasher(int expectedInputSize) {
      this.buffer = ByteBuffer.allocate(expectedInputSize).order(ByteOrder.LITTLE_ENDIAN);
    }

    /**