Method hash

android/guava/src/com/google/common/io/ByteSource.java:337–341

Hashes the contents of this byte source using the given hash function. @throws IOException if an I/O error occurs while reading from this source

(HashFunction hashFunction)

   * @throws IOException if an I/O error occurs while reading from this source
   */
  public HashCode hash(HashFunction hashFunction) throws IOException {
    Hasher hasher = hashFunction.newHasher();
    copyTo(Funnels.asOutputStream(hasher));
    return hasher.hash();
  }

  /**
   * Checks that the contents of this byte source are equal to the contents of the given byte