From e0a12f6f7faf1f5207913f2411181d473e546100 Mon Sep 17 00:00:00 2001
From: Renaud G <renaud@rolisteam.org>
Date: Fri, 27 Jan 2017 23:09:01 +0100
Subject: -prevent crash and improve readability of dot file.

---
 node/scalaroperatornode.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'node/scalaroperatornode.cpp')

diff --git a/node/scalaroperatornode.cpp b/node/scalaroperatornode.cpp
index 1d004cb..e670dee 100644
--- a/node/scalaroperatornode.cpp
+++ b/node/scalaroperatornode.cpp
@@ -59,6 +59,8 @@ void ScalarOperatorNode::run(ExecutionNode* previous)
         if(NULL!=previousResult)
         {
             ExecutionNode* internal = m_internalNode;
+            if(NULL != internal)
+            {
              while(NULL != internal->getNextNode() )
              {
                     internal = internal->getNextNode();
@@ -90,6 +92,7 @@ void ScalarOperatorNode::run(ExecutionNode* previous)
                     break;
 
             }
+            }
 
             if(NULL!=m_nextNode)
             {
@@ -195,7 +198,7 @@ void ScalarOperatorNode::generateDotTree(QString& s)
 		s.append(toString(false));
         s.append(" -> ");
 		s.append(m_nextNode->toString(false));
-		s.append(";\n");
+        s.append("[label=\"nextNode\"];\n");
         m_nextNode->generateDotTree(s);
     }
     else
-- 
cgit v1.2.3-70-g09d2