Description

    pub const Description = enum(u8) {
        pub const Error = error{
            TlsAlertUnexpectedMessage,
            TlsAlertBadRecordMac,
            TlsAlertRecordOverflow,
            TlsAlertHandshakeFailure,
            TlsAlertBadCertificate,
            TlsAlertUnsupportedCertificate,
            TlsAlertCertificateRevoked,
            TlsAlertCertificateExpired,
            TlsAlertCertificateUnknown,
            TlsAlertIllegalParameter,
            TlsAlertUnknownCa,
            TlsAlertAccessDenied,
            TlsAlertDecodeError,
            TlsAlertDecryptError,
            TlsAlertProtocolVersion,
            TlsAlertInsufficientSecurity,
            TlsAlertInternalError,
            TlsAlertInappropriateFallback,
            TlsAlertMissingExtension,
            TlsAlertUnsupportedExtension,
            TlsAlertUnrecognizedName,
            TlsAlertBadCertificateStatusResponse,
            TlsAlertUnknownPskIdentity,
            TlsAlertCertificateRequired,
            TlsAlertNoApplicationProtocol,
            TlsAlertUnknown,
        };

        close_notify = 0,
        unexpected_message = 10,
        bad_record_mac = 20,
        record_overflow = 22,
        handshake_failure = 40,
        bad_certificate = 42,
        unsupported_certificate = 43,
        certificate_revoked = 44,
        certificate_expired = 45,
        certificate_unknown = 46,
        illegal_parameter = 47,
        unknown_ca = 48,
        access_denied = 49,
        decode_error = 50,
        decrypt_error = 51,
        protocol_version = 70,
        insufficient_security = 71,
        internal_error = 80,
        inappropriate_fallback = 86,
        user_canceled = 90,
        missing_extension = 109,
        unsupported_extension = 110,
        unrecognized_name = 112,
        bad_certificate_status_response = 113,
        unknown_psk_identity = 115,
        certificate_required = 116,
        no_application_protocol = 120,
        _,

        pub fn toError(description: Description) Error!void {
            switch (description) {
                .close_notify => {}, // not an error
                .unexpected_message => return error.TlsAlertUnexpectedMessage,
                .bad_record_mac => return error.TlsAlertBadRecordMac,
                .record_overflow => return error.TlsAlertRecordOverflow,
                .handshake_failure => return error.TlsAlertHandshakeFailure,
                .bad_certificate => return error.TlsAlertBadCertificate,
                .unsupported_certificate => return error.TlsAlertUnsupportedCertificate,
                .certificate_revoked => return error.TlsAlertCertificateRevoked,
                .certificate_expired => return error.TlsAlertCertificateExpired,
                .certificate_unknown => return error.TlsAlertCertificateUnknown,
                .illegal_parameter => return error.TlsAlertIllegalParameter,
                .unknown_ca => return error.TlsAlertUnknownCa,
                .access_denied => return error.TlsAlertAccessDenied,
                .decode_error => return error.TlsAlertDecodeError,
                .decrypt_error => return error.TlsAlertDecryptError,
                .protocol_version => return error.TlsAlertProtocolVersion,
                .insufficient_security => return error.TlsAlertInsufficientSecurity,
                .internal_error => return error.TlsAlertInternalError,
                .inappropriate_fallback => return error.TlsAlertInappropriateFallback,
                .user_canceled => {}, // not an error
                .missing_extension => return error.TlsAlertMissingExtension,
                .unsupported_extension => return error.TlsAlertUnsupportedExtension,
                .unrecognized_name => return error.TlsAlertUnrecognizedName,
                .bad_certificate_status_response => return error.TlsAlertBadCertificateStatusResponse,
                .unknown_psk_identity => return error.TlsAlertUnknownPskIdentity,
                .certificate_required => return error.TlsAlertCertificateRequired,
                .no_application_protocol => return error.TlsAlertNoApplicationProtocol,
                _ => return error.TlsAlertUnknown,
            }
        }
    }