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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <memory>
namespace search::query {
struct QueryVisitor;
/**
This is the base of any node in the query tree. Both leaf nodes (terms)
and operator nodes (AND, NOT, OR, PHRASE, NEAR, ONEAR, etc).
*/
class Node {
public:
using UP = std::unique_ptr<Node>;
virtual ~Node() = default;
virtual void accept(QueryVisitor &visitor) = 0;
virtual bool isIntermediate() const { return false; }
virtual bool isLocationTerm() const { return false; }
};
}
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