static private MultiNode BuildMulti(BinaryExpression be, BaseNode parent, bool negate)
{
var result = new MultiNode();
result.Not = negate;
result.Mode = be.NodeType == ExpressionType.AndAlso ? MultiNode.Operator.All : MultiNode.Operator.Any;
if ((parent as MultiNode)?.Mode == result.Mode)
{
(parent as MultiNode).AddNode(BuildFromExpression(be.Left, parent));
(parent as MultiNode).AddNode(BuildFromExpression(be.Right, parent));
return(null);
}
else
{
result.AddNode(BuildFromExpression(be.Left, result));
result.AddNode(BuildFromExpression(be.Right, result));
}
return(result);
}
/// <summary>
/// Injects a new MultiNode into the tree, in place of the current node, and makes the current node a child of the MultiNode.
/// </summary>
/// <returns>The injected MultiNode</returns>
public MultiNode PromoteToMulti()
{
var multi = new MultiNode();
if (Parent != null)
{
var i = Parent.Children.IndexOf(this);
Parent.Children.Remove(this);
Parent.AddNode(multi, i);
}
multi.AddNode(this);
return(multi);
}
