[Completion] Filtered double added enums.

ICSharpCode.NRefactory.CSharp/Completion/CSharpCompletionEngine.cs

@@ -2256,18 +2256,7 @@ namespace ICSharpCode.NRefactory.CSharp.Completion
 				return;
 			}
 			string typeString = GetShortType(resolvedType, state);
-			if (typeString.Contains(".")) {
-				completionList.AddType(resolvedType, typeString);
-			}
-			foreach (var field in resolvedType.GetFields ()) {
-				if (field.IsConst || field.IsStatic) {
-					completionList.Result.Add(factory.CreateEntityCompletionData(
-						field,
-						typeString + "." + field.Name
-					)
-					);
-				}
-			}
+			completionList.AddEnumMembers (resolvedType, state, typeString);
 			DefaultCompletionString = typeString;
 		}
 		

ICSharpCode.NRefactory.CSharp/Completion/CompletionDataWrapper.cs

@@ -28,6 +28,7 @@ using System.Collections.Generic;
 using ICSharpCode.NRefactory.Completion;
 using ICSharpCode.NRefactory.TypeSystem;
 using System.Linq;
+using ICSharpCode.NRefactory.CSharp.Resolver;
 
 namespace ICSharpCode.NRefactory.CSharp.Completion
 {
@@ -239,6 +240,25 @@ namespace ICSharpCode.NRefactory.CSharp.Completion
 				return 1;
 			}
 		}
+		HashSet<IType> addedEnums = new HashSet<IType> ();
+		public void AddEnumMembers (IType resolvedType, CSharpResolver state, string typeString)
+		{
+			if (addedEnums.Contains (resolvedType))
+				return;
+			addedEnums.Add (resolvedType);
+			if (typeString.Contains(".")) {
+				AddType(resolvedType, typeString);
+			}
+			foreach (var field in resolvedType.GetFields ()) {
+				if (field.IsConst || field.IsStatic) {
+					Result.Add(Factory.CreateEntityCompletionData(
+						field,
+						typeString + "." + field.Name
+					)
+					);
+				}
+			}
+		}
 	}
 }