[CodeAction] Moved GetDefaultValueExpression to BaseRefactoringContext

ICSharpCode.NRefactory.CSharp/Refactoring/BaseRefactoringContext.cs

@@ -162,6 +162,44 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 			return str;
 		}
 
+		public Expression GetDefaultValueExpression (AstType astType)
+		{
+			var type = ResolveType (astType);
+
+			if ((type.IsReferenceType ?? false) || type.Kind == TypeKind.Dynamic)
+				return new NullReferenceExpression ();
+
+			var typeDefinition = type.GetDefinition ();
+			if (typeDefinition != null) {
+				switch (typeDefinition.KnownTypeCode) {
+				case KnownTypeCode.Boolean:
+					return new PrimitiveExpression (false);
+
+				case KnownTypeCode.Char:
+					return new PrimitiveExpression ('\0');
+
+				case KnownTypeCode.SByte:
+				case KnownTypeCode.Byte:
+				case KnownTypeCode.Int16:
+				case KnownTypeCode.UInt16:
+				case KnownTypeCode.Int32:
+				case KnownTypeCode.UInt32:
+				case KnownTypeCode.Int64:
+				case KnownTypeCode.UInt64:
+				case KnownTypeCode.Single:
+				case KnownTypeCode.Double:
+				case KnownTypeCode.Decimal:
+					return new PrimitiveExpression (0);
+
+				case KnownTypeCode.NullableOfT:
+					return new NullReferenceExpression ();
+				}
+				if (type.Kind == TypeKind.Struct)
+					return new ObjectCreateExpression (astType.Clone ());
+			}
+			return new DefaultValueExpression (astType.Clone ());
+		} 
+
 		#region IServiceProvider implementation
 		readonly ServiceContainer services = new ServiceContainer();
 		

ICSharpCode.NRefactory.CSharp/Refactoring/CodeActions/CreateOverloadWithoutParameterAction.cs

@@ -103,39 +103,7 @@ namespace ICSharpCode.NRefactory.CSharp.Refactoring
 				return astType.Member(members[0].Name);
 			}
 
-			// reference, dynamic
-			if ((type.IsReferenceType ?? false) || type.Kind == TypeKind.Dynamic)
-				return new NullReferenceExpression ();
-
-			var typeDefinition = type.GetDefinition ();
-			if (typeDefinition != null) {
-				switch (typeDefinition.KnownTypeCode) {
-					case KnownTypeCode.Boolean:
-					return new PrimitiveExpression (false);
-
-					case KnownTypeCode.Char:
-					return new PrimitiveExpression ('\0');
-
-					case KnownTypeCode.SByte:
-					case KnownTypeCode.Byte:
-					case KnownTypeCode.Int16:
-					case KnownTypeCode.UInt16:
-					case KnownTypeCode.Int32:
-					case KnownTypeCode.UInt32:
-					case KnownTypeCode.Int64:
-					case KnownTypeCode.UInt64:
-					case KnownTypeCode.Single:
-					case KnownTypeCode.Double:
-					case KnownTypeCode.Decimal:
-					return new PrimitiveExpression (0);
-
-					case KnownTypeCode.NullableOfT:
-					return new NullReferenceExpression ();
-				}
-				if (type.Kind == TypeKind.Struct)
-					return new ObjectCreateExpression (astType.Clone ());
-			}
-			return new DefaultValueExpression (astType.Clone ());
+			return context.GetDefaultValueExpression (astType);
 		}
 	}
 }