VerifyFlag.none is ambiguous as an optional

[mattmassicotte]

The following code produces a warning:

var ssl = CassandraClient.Configuration.SSL()
ssl.verifyFlag = .none

Assuming you mean 'Optional<CassandraClient.Configuration.SSL.VerifyFlag>.none'; did you mean 'CassandraClient.Configuration.SSL.VerifyFlag.none' instead?

This is because verifyFlag is optional. Given that it is an enum, I'm going to guess that nil is equivalent to none anyways. What do you think about making this field non-optional?

[yim-lee]

Actually, ssl.verifyFlag = nil means cass_ssl_set_verify_flags doesn't get called, so the DataStax driver will use the default, which is CASS_SSL_VERIFY_PEER_CERT.

+1 on making verifyFlag non-optional. I am adding .default case to the enum. See https://github.com/apple/swift-cassandra-client/pull/15

[mattmassicotte]

Fantastic!