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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 "node.h"
#include <vector>
namespace search::query {
class Intermediate : public Node
{
std::vector<Node *> _children;
public:
using UP = std::unique_ptr<Intermediate>;
Intermediate(const Intermediate & rhs) = delete;
Intermediate & operator = (const Intermediate & rhs) = delete;
Intermediate() = default;
virtual ~Intermediate() = 0;
bool isIntermediate() const override { return true; }
const std::vector<Node *> &getChildren() const { return _children; }
Intermediate &reserve(size_t sz) { _children.reserve(sz); return *this; }
Intermediate &prepend(Node::UP child);
Intermediate &append(Node::UP child);
Node::UP stealFirst();
};
}
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