From 3451f5cb38ec750b81d4786b01674729840d8e7e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mike=20Kr=C3=BCger?= <mkrueger@xamarin.com>
Date: Thu, 30 Aug 2012 07:41:54 +0200
Subject: [PATCH] [Analysis] Handle null reference in control flow graph
 builder. btw. assumes that if true statement is null the if is incomplete.

---
 ICSharpCode.NRefactory.CSharp/Analysis/ControlFlow.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ICSharpCode.NRefactory.CSharp/Analysis/ControlFlow.cs b/ICSharpCode.NRefactory.CSharp/Analysis/ControlFlow.cs
index b74c2fe1df..b8eb4bf212 100644
--- a/ICSharpCode.NRefactory.CSharp/Analysis/ControlFlow.cs
+++ b/ICSharpCode.NRefactory.CSharp/Analysis/ControlFlow.cs
@@ -405,7 +405,9 @@ namespace ICSharpCode.NRefactory.CSharp.Analysis
 			
 			public override ControlFlowNode VisitIfElseStatement(IfElseStatement ifElseStatement, ControlFlowNode data)
 			{
-				bool? cond = builder.EvaluateCondition(ifElseStatement.Condition);
+				bool? cond = ifElseStatement.Condition.IsNull ? true : builder.EvaluateCondition(ifElseStatement.Condition);
+				if (ifElseStatement.TrueStatement.IsNull)
+					return data;
 				ControlFlowNode trueBegin = builder.CreateStartNode(ifElseStatement.TrueStatement);
 				if (cond != false)
 					Connect(data, trueBegin, ControlFlowEdgeType.ConditionTrue);