Added logger.

Author: KN4CK3R

DataExchange/ReClassClipboard.cs

@@ -1,9 +1,6 @@
-using System;
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Diagnostics.Contracts;
 using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using System.Windows.Forms;
 using ReClassNET.Logger;
 using ReClassNET.Nodes;
@@ -14,18 +11,19 @@ public class ReClassClipboard
 	{
 		private const string Format = "ReClass.NET SchemaNodes";
 
-		public static void Copy(IEnumerable<BaseNode> nodes, IEnumerable<ClassNode> classes)
+		public static bool ContainsData => Clipboard.ContainsData(Format);
+
+		public static void Copy(IEnumerable<BaseNode> nodes, IEnumerable<ClassNode> classes, ILogger logger)
 		{
 			Contract.Requires(nodes != null);
 			Contract.Requires(classes != null);
+			Contract.Requires(logger != null);
 
 			if (!nodes.Any())
 			{
 				return;
 			}
 
-			var logger = new NullLogger();
-
 			var classMap = classes.ToDictionary(
 				c => c,
 				c => new SchemaClassNode { Name = c.Name }
@@ -45,21 +43,20 @@ public static void Copy(IEnumerable<BaseNode> nodes, IEnumerable<ClassNode> clas
 			Clipboard.SetData(Format, schemaNodes);
 		}
 
-		public static List<BaseNode> Paste(ClassNode parentNode, IEnumerable<ClassNode> classes)
+		public static List<BaseNode> Paste(ClassNode parentNode, IEnumerable<ClassNode> classes, ILogger logger)
 		{
 			Contract.Requires(parentNode != null);
 			Contract.Requires(classes != null);
+			Contract.Requires(logger != null);
 			Contract.Requires(Contract.Result<List<BaseNode>>() != null);
 
 			var nodes = new List<BaseNode>();
 
-			if (Clipboard.ContainsData(Format))
+			if (ContainsData)
 			{
 				var schemaNodes = Clipboard.GetData(Format) as List<SchemaNode>;
 				if (schemaNodes != null)
 				{
-					var logger = new NullLogger();
-
 					// Now remove all reference types with unknown references.
 					schemaNodes.RemoveAll(n => n is SchemaReferenceNode && !classes.Any(c => c.Name == ((SchemaReferenceNode)n).InnerNode?.Name));