-Add API for copying a branch of execution node.

-Allow to use if node several times.

1 files changed, 9 insertions, 0 deletions

diff --git a/node/jumpbackwardnode.cpp b/node/jumpbackwardnode.cpp
index 0b2cbf6..b7af106 100644
--- a/node/jumpbackwardnode.cpp
+++ b/node/jumpbackwardnode.cpp
@@ -158,6 +158,15 @@ void JumpBackwardNode::run(ExecutionNode* previous)
                 }
             }
         }
+}
 
+ExecutionNode* JumpBackwardNode::getCopy() const
+{
+    JumpBackwardNode* node = new JumpBackwardNode();
+    if(NULL!=m_nextNode)
+    {
+        node->setNextNode(m_nextNode->getCopy());
+    }
+    return node;
 
 }