private string ComputeRecursiveExitLabel(LabelGroupData data, string label)
{
var labelData = data[label];
var recursiveExit = labelData.DirectExitLabel;
if (recursiveExit == null)
{
return(null);
}
while (recursiveExit != null)
{
LabelGroupLabelData targetLabelData;
if (!data.TryGetValue(recursiveExit, out targetLabelData))
{
// The label is part of another label group.
return(null);
}
if (targetLabelData.DirectExitLabel == null)
{
if (
(targetLabelData.ExitTargetLabels.Count == 0) /* &&
* FIXME: Is this right?
* (targetLabelData.UntargettedExitCount <= 1) */
)
{
return(recursiveExit);
}
else
{
return(null);
}
}
else
{
// Cycle detected
if (recursiveExit == targetLabelData.DirectExitLabel)
{
return(null);
}
recursiveExit = targetLabelData.DirectExitLabel;
}
// Cycle detected
if (recursiveExit == label)
{
return(null);
}
}
return(null);
}
