Fixed forum-12661: Missing parenthesis when converting CastExpression from VB to C#.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@1940 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/BackendBindings/Boo/BooBinding/Project/Src/CodeCompletion/ConvertVisitor.cs

@@ -431,10 +431,13 @@ namespace Grunwald.BooBinding.CodeCompletion
 			//LoggingService.Debug("Method: " + node.FullName + " (" + node.Modifiers + ")");
 			DefaultMethod method = new DefaultMethod(node.Name, null, GetModifier(node), GetRegion(node), GetClientRegion(node), OuterClass);
 			
-			// Removed, the newer Boo builds implement extension methods differently
-//			if ((node.ImplementationFlags & AST.MethodImplementationFlags.Extension) == AST.MethodImplementationFlags.Extension) {
-//				method.IsExtensionMethod = true;
-//			}
+			foreach (AST.Attribute a in node.Attributes) {
+				if (a.Name == "Extension" || a.Name == "Boo.Lang.Extension"
+				    || a.Name == "ExtensionAttribute" || a.Name == "Boo.Lang.ExtensionAttribute")
+				{
+					method.IsExtensionMethod = true;
+				}
+			}
 			
 			ConvertAttributes(node, method);
 			ConvertTemplates(node, method);

src/Libraries/NRefactory/Project/Src/PrettyPrinter/CSharp/CSharpOutputVisitor.cs

@@ -2354,7 +2354,13 @@ namespace ICSharpCode.NRefactory.PrettyPrinter
 				target = ((WithStatement)withExpressionStack.Peek()).Expression;
 			}
 			
+			if (target is BinaryOperatorExpression || target is CastExpression) {
+				outputFormatter.PrintToken(Tokens.OpenParenthesis);
+			}
 			nodeTracker.TrackedVisit(target, data);
+			if (target is BinaryOperatorExpression || target is CastExpression) {
+				outputFormatter.PrintToken(Tokens.CloseParenthesis);
+			}
 			outputFormatter.PrintToken(Tokens.Dot);
 			outputFormatter.PrintIdentifier(fieldReferenceExpression.FieldName);
 			return null;

src/Libraries/NRefactory/Test/Output/CSharp/VBToCSharpConverterTest.cs

@@ -561,5 +561,11 @@ static int static_Test2_j = 0;");
 		{
 			TestStatement("Dim a As Global.System.String", "global::System.String a;");
 		}
+		
+		[Test]
+		public void FieldReferenceOnCastExpression()
+		{
+			TestStatement("CType(obj, IDisposable).Dispose()", "((IDisposable)obj).Dispose();");
+		}
 	}
 }