"encoding/hex"

	"github.com/minio/minio/internal/hash/sha256"
)

// getSHA256Hash returns SHA-256 hash in hex encoding of given data.
func getSHA256Hash(data []byte) string {
	return hex.EncodeToString(getSHA256Sum(data))
}

// getSHA256Hash returns SHA-256 sum of given data.
func getSHA256Sum(data []byte) []byte {
	hash := sha256.New()
	hash.Write(data)
	return hash.Sum(nil)
}

    if (key == null) {
      return null;
    }
    int hash = hash(key);
    return segmentFor(hash).get(key, hash);
  }

  @CanIgnoreReturnValue // TODO(b/27479612): consider removing this
  V get(K key, CacheLoader<? super K, V> loader) throws ExecutionException {
    int hash = hash(checkNotNull(key));
    return segmentFor(hash).get(key, hash, loader);
  }

  public @Nullable V getIfPresent(Object key) {

      return new byte[] {
        (byte) hash,
        (byte) (hash >> 8),
        (byte) (hash >> 16),
        (byte) (hash >> 24),
        (byte) (hash >> 32),
        (byte) (hash >> 40),
        (byte) (hash >> 48),
        (byte) (hash >> 56)
      };
    }

    @Override
    public int asInt() {
      return (int) hash;
    }

    @Override
    public long asLong() {

    }

    /**
     * Gets the selected hash algorithm.
     *
     * @return the hash algorithm
     */
    public int getSelectedHashAlgorithm() {
        return selectedHashAlgorithm;
    }

    /**
     * Calculates hash according to SMB 3.1.1 preauth integrity specification.
     *
     * @param previousHash the previous hash in the chain
     * @param messageData the message data to hash

}

func (r *dirReader) Read([]byte) (int, error) {
	return 0, r.err
}

func (r *dirReader) Close() error {
	return nil
}

type checksumReader struct {
	rc    io.ReadCloser
	hash  hash.Hash32
	nread uint64 // number of bytes read so far
	f     *File
	desr  io.Reader // if non-nil, where to read the data descriptor
	err   error     // sticky error
}

    if (key == null) {
      return null;
    }
    int hash = hash(key);
    return segmentFor(hash).getEntry(key, hash);
  }

  @Override
  public boolean containsKey(@Nullable Object key) {
    if (key == null) {
      return false;
    }
    int hash = hash(key);
    return segmentFor(hash).containsKey(key, hash);
  }

  @Override

    }

    /**
     * Returns the hash code for this RegexRule.
     * @return The hash code.
     */
    @Override
    public int hashCode() {
        int hash = regexMap.hashCode();
        if (defaultRule) {
            hash = hash * 31 + 1;
        }
        if (allRequired) {
            hash = hash * 31 + 2;
        }
        return hash;
    }

    /**

type UUIDHash struct {
	uuid []byte
}

// Write -  implement hash.Hash Write
func (u UUIDHash) Write(p []byte) (n int, err error) {
	return len(p), nil
}

// Sum -  implement md5.Sum
func (u UUIDHash) Sum(b []byte) []byte {
	return u.uuid
}

// Reset -  implement hash.Hash Reset
func (u UUIDHash) Reset() {}

// Size -  implement hash.Hash Size
func (u UUIDHash) Size() int {
	return len(u.uuid)
}

stage/
.sia_temp/
config.json
node_modules/
mc.*
s3-check-md5*
xl-meta*
healing-*
inspect*.zip
200M*
hash-set
minio.RELEASE*
mc
nancy
inspects/*
.bin/
*.gz
docs/debugging/s3-verify/s3-verify
docs/debugging/xl-meta/xl-meta
docs/debugging/s3-check-md5/s3-check-md5
docs/debugging/hash-set/hash-set
docs/debugging/healing-bin/healing-bin
docs/debugging/inspect/inspect
docs/debugging/pprofgoparser/pprofgoparser

    assertThat(c.asMap().computeIfAbsent("hash-1", k -> "")).isEqualTo("");
    assertThat(c.asMap().computeIfAbsent("hash-1", k -> "")).isEqualTo("");
    assertThat(c.asMap().computeIfAbsent("hash-1", k -> "")).isEqualTo("");
    assertThat(c.size()).isEqualTo(1);
    assertThat(c.asMap().computeIfAbsent("hash-2", k -> "")).isEqualTo("");
  }

  public void testComputeEviction() {
    // b/80241237