private Label insertPolicy(JoinLabel join, PolicyLabel lbl)
{
if (join.Label2 is PolicyLabel)
{
return(new JoinLabel(join.Label1, join.Label2 as PolicyLabel + lbl));
}
if (join.Label1 is PolicyLabel)
{
return(new JoinLabel(join.Label1 as PolicyLabel + lbl, join.Label2));
}
Label l1 = null, l2 = null;
if (join.Label2 is JoinLabel)
{
l2 = insertPolicy(join.Label2 as JoinLabel, lbl);
}
if (l2 == null && join.Label1 is JoinLabel)
{
l1 = insertPolicy(join.Label1 as JoinLabel, lbl);
}
if (l1 == null && l2 == null)
{
return(null);
}
else if (l1 == null)
{
return(new JoinLabel(join.Label1, l2));
}
else
{
return(new JoinLabel(l1, join.Label2));
}
}
private Label insertPolicy(Label lbl, JoinLabel join)
{
if (lbl is PolicyLabel)
{
return(insertPolicy(join, lbl as PolicyLabel) ?? new JoinLabel(lbl, join));
}
else
{
return(new JoinLabel(lbl, join));
}
}
private bool contains(JoinLabel join, Label lbl)
{
if (join == null)
{
return(false);
}
if (join.Label1.Equals(lbl))
{
return(true);
}
if (join.Label2.Equals(lbl))
{
return(true);
}
if (contains(join.Label1 as JoinLabel, lbl) || contains(join.Label2 as JoinLabel, lbl))
{
return(true);
}
return(false);
}
public bool Equals(JoinLabel label) => ArrayEquatable.Equals(flatten(), label.flatten());
