BinaryNode
class BinaryOpNode : public BinaryNode {
class BinaryNode : public QueryNode {
BinaryNode();
virtual ~BinaryNode();
BinaryNode::BinaryNode()
BinaryNode::~BinaryNode()
BinaryNode::Arity() const
BinaryNode::SetChildAt(QueryNode *child, int32 index)
BinaryNode::ChildAt(int32 index)