public static bool IsValidLength(long length, ContentHash hash)
{
if (length < 0 ||
length > LengthAndExistence.MaxSupportedLength ||
hash.IsSpecialValue())
{
return(false);
}
ContentHash emptyHash = HashInfoLookup.Find(hash.HashType).EmptyHash;
return(length == 0 ? (hash == emptyHash) : (hash != emptyHash));
}
