Function commitmentToVersionedHash

src/utils/blob/commitmentToVersionedHash.ts:46–62

(
  parameters: CommitmentToVersionedHashParameters<commitment, to>,
)

 * ```
 */
export function commitmentToVersionedHash<
  const commitment extends Hex | ByteArray,
  to extends To =
    | (commitment extends Hex ? 'hex' : never)
    | (commitment extends ByteArray ? 'bytes' : never),
>(
  parameters: CommitmentToVersionedHashParameters<commitment, to>,
): CommitmentToVersionedHashReturnType<to> {
  const { commitment, version = 1 } = parameters
  const to = parameters.to ?? (typeof commitment === 'string' ? 'hex' : 'bytes')

  const versionedHash = sha256(commitment, 'bytes')
  versionedHash.set([version], 0)
  return (
    to === 'bytes' ? versionedHash : bytesToHex(versionedHash)
  ) as CommitmentToVersionedHashReturnType<to>
}