private static bool Add(TryHandler tryHandler, SortedList <int, TryHandler> clauses)
{
int i = 0;
while (i < clauses.Values.Count)
{
TryHandler nestedHandler = clauses.Values[i];
// Find any handlers in the list that need to become children of the new handler
if ((tryHandler.TryStartIp <= nestedHandler.TryStartIp) &&
(tryHandler.TryEndIp >= nestedHandler.HandlerEndIp))
{
tryHandler.NestedTry.Add(nestedHandler.TryStartIp, nestedHandler);
clauses.Remove(nestedHandler.TryStartIp);
continue;
}
if ((tryHandler.HandlerStartIp <= nestedHandler.TryStartIp) &&
(tryHandler.HandlerEndIp >= nestedHandler.HandlerEndIp))
{
tryHandler.NestedHandler.Add(nestedHandler.TryStartIp, nestedHandler);
clauses.Remove(nestedHandler.TryStartIp);
continue;
}
i++;
}
for (i = 0; i < clauses.Values.Count; i++)
{
TryHandler nestedHandler = clauses.Values[i];
// Find the parent of this handler
if ((nestedHandler.TryStartIp >= tryHandler.TryStartIp) &&
(nestedHandler.TryEndIp <= tryHandler.HandlerEndIp))
{
return(Add(tryHandler, nestedHandler.NestedTry));
}
if ((nestedHandler.HandlerStartIp >= tryHandler.TryStartIp) &&
(nestedHandler.HandlerEndIp <= tryHandler.HandlerEndIp))
{
return(Add(tryHandler, nestedHandler.NestedHandler));
}
}
clauses.Add(tryHandler.TryStartIp, tryHandler);
return(true);
}
private void TraverseExceptionTree(TryHandler tryHandler)
{
// Find the right node to add the try node before
CallGraphNode tryNode = SplitNode((ushort)tryHandler.TryStartIp, tryHandler.Type);
CallGraphNode handlerNode = SplitNode((ushort)tryHandler.HandlerStartIp, NodeType.FallThrough);
CallGraphNode followNode = SplitNode((ushort)tryHandler.HandlerEndIp, NodeType.FallThrough);
tryNode.HandlerNode = (ICallGraphNode)handlerNode.OutEdges[0];
tryNode.FollowNode = (ICallGraphNode)followNode.OutEdges[0];
// Split the children
foreach (TryHandler childTryHandler in tryHandler.NestedTry.Values)
{
TraverseExceptionTree(childTryHandler);
}
foreach (TryHandler childTryHandler in tryHandler.NestedHandler.Values)
{
TraverseExceptionTree(childTryHandler);
}
}
private static void TraverseExceptionTree(TryHandler tryHandler, List <Node> nodes)
{
// Find the right node to add the try node before
Node tryNode = SplitNode(nodes, (ushort)tryHandler.TryStartIp, "Try");
Node handlerNode = SplitNode(nodes, (ushort)tryHandler.HandlerStartIp, "Handler");
Node followNode = SplitNode(nodes, (ushort)tryHandler.HandlerEndIp, "Follow");
tryNode.HandlerNode = handlerNode.OutEdges[0];
tryNode.FollowNode = followNode.OutEdges[0];
// Split the children
foreach (TryHandler childTryHandler in tryHandler.NestedTry.Values)
{
TraverseExceptionTree(childTryHandler, nodes);
}
foreach (TryHandler childTryHandler in tryHandler.NestedHandler.Values)
{
TraverseExceptionTree(childTryHandler, nodes);
}
}
