public static bool IsAcyclic([NotNull] BlockNode block)
{
block.AssertNotNull("block != null");
if (block.InnerNodes.Count == 0)
{
return(true);
}
var visited = new Stack <IFlowNode>();
bool hasCycle = HasCycle(block.InnerNodes[0], visited);
visited.Clear();
return(!hasCycle);
}
public Task VisitBlock(BlockNode blockNode)
{
blockNode.AssertNotNull("blockNode != null");
Log.Info("At node: {0}. Block entered", blockNode);
if (blockNode.InnerNodes.Count == 0)
{
if (blockNode.PointsTo != null)
{
return(blockNode.PointsTo.Accept(this));
}
return(TaskHelper.CompletedTask);
}
Task innerTask = blockNode.InnerNodes[0].Accept(this);
Debug.Assert(innerTask != null);
if (blockNode.PointsTo == null)
{
return(innerTask);
}
Task <Task> pointsToContinuation = innerTask.ContinueWith(t =>
{
if (t.Status == TaskStatus.RanToCompletion)
{
return(blockNode.PointsTo.Accept(this));
}
return(t);
}, myScheduler);
return(pointsToContinuation.Unwrap());
}
protected override void VisitBlock(BlockNode blockNode)
{
CheckIfNodeIsInsideBlock(blockNode.PointsTo);
}
protected override void VisitBlock(BlockNode blockNode)
{
}
protected abstract void VisitBlock([NotNull] BlockNode blockNode);
Null INodeVisitor <Null> .VisitBlock(BlockNode blockNode)
{
VisitBlock(blockNode);
return(null);
}
