Use more patterns.

Author: bgrainger

src/MySqlConnector/Core/Row.cs

@@ -170,7 +170,7 @@ public Guid GetGuid(int ordinal)
 			if (value is string stringValue && Guid.TryParse(stringValue, out guid))
 				return guid;
 
-			if (value is byte[] bytes && bytes.Length == 16)
+			if (value is byte[] { Length: 16 } bytes)
 				return CreateGuidFromBytes(Connection.GuidFormat, bytes);
 
 			throw new InvalidCastException("The value could not be converted to a GUID: {0}".FormatInvariant(value));
@@ -421,7 +421,7 @@ public float GetFloat(int ordinal)
 			// Use explicit range checks to guard against that.
 			return value switch
 			{
-				double doubleValue => (doubleValue >= float.MinValue && doubleValue <= float.MaxValue ? (float) doubleValue : throw new InvalidCastException("The value cannot be safely cast to Single.")),
+				double doubleValue => (doubleValue is >= float.MinValue and <= float.MaxValue ? (float) doubleValue : throw new InvalidCastException("The value cannot be safely cast to Single.")),
 				decimal decimalValue => (float) decimalValue,
 				_ => (float) value
 			};

src/MySqlConnector/Core/ServerSession.cs

@@ -879,7 +879,7 @@ private async ValueTask<PayloadData> ReceiveReplyAsyncAwaited(ValueTask<ArraySeg
 			catch (Exception ex)
 			{
 				SetFailed(ex);
-				if (ex is MySqlException msex && msex.ErrorCode == MySqlErrorCode.CommandTimeoutExpired)
+				if (ex is MySqlException { ErrorCode: MySqlErrorCode.CommandTimeoutExpired })
 					HandleTimeout();
 				throw;
 			}
@@ -1384,7 +1384,7 @@ await sslStream.AuthenticateAsClientAsync(clientAuthenticationOptions.TargetHost
 					throw new MySqlException(MySqlErrorCode.UnableToConnectToHost, "SSL Authentication Error", ex);
 				if (ex is IOException && clientCertificates is not null)
 					throw new MySqlException(MySqlErrorCode.UnableToConnectToHost, "MySQL Server rejected client certificate", ex);
-				if (ex is Win32Exception win32 && win32.NativeErrorCode == -2146893007) // SEC_E_ALGORITHM_MISMATCH (0x80090331)
+				if (ex is Win32Exception { NativeErrorCode: -2146893007 }) // SEC_E_ALGORITHM_MISMATCH (0x80090331)
 					throw new MySqlException(MySqlErrorCode.UnableToConnectToHost, "The server doesn't support the client's specified TLS versions.", ex);
 				throw;
 			}

src/MySqlConnector/Protocol/Payloads/EofPayload.cs

@@ -31,7 +31,7 @@ public static EofPayload Create(ReadOnlySpan<byte> span)
 		/// <param name="payload">The payload to examine.</param>
 		/// <returns><c>true</c> if this is an EOF packet; otherwise, <c>false</c>.</returns>
 		public static bool IsEof(PayloadData payload) =>
-			payload.Span.Length > 0 && payload.Span.Length < 9 && payload.HeaderByte == Signature;
+			payload.Span.Length is > 0 and < 9 && payload.HeaderByte == Signature;
 
 		public const byte Signature = 0xFE;
 

src/MySqlConnector/Protocol/Serialization/StreamByteHandler.cs

@@ -38,7 +38,7 @@ ValueTask<int> DoReadBytesSync(Memory<byte> buffer)
 				}
 				catch (Exception ex)
 				{
-					if (RemainingTimeout != Constants.InfiniteTimeout && ex is IOException ioException && ioException.InnerException is SocketException socketException && socketException.SocketErrorCode == SocketError.TimedOut)
+					if (RemainingTimeout != Constants.InfiniteTimeout && ex is IOException { InnerException: SocketException { SocketErrorCode: SocketError.TimedOut } })
 						return ValueTaskExtensions.FromException<int>(MySqlException.CreateForTimeout(ex));
 					return ValueTaskExtensions.FromException<int>(ex);
 				}

src/MySqlConnector/Utilities/Utility.cs

@@ -620,7 +620,7 @@ public static SslProtocols GetDefaultSslProtocols()
 				try
 				{
 					var property = typeof(ServicePointManager).GetProperty("DisableSystemDefaultTlsVersions", BindingFlags.NonPublic | BindingFlags.Static);
-					disableSystemDefaultTlsVersions = property is null || (property.GetValue(null) is bool b && b);
+					disableSystemDefaultTlsVersions = property is null || property.GetValue(null) is true;
 				}
 				catch (Exception)
 				{