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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 "attributenode.h"
namespace search::attribute {
class IAttributeVector;
class IAttributeContext;
}
namespace search::expression {
class ArrayAtLookup : public AttributeNode
{
public:
DECLARE_EXPRESSIONNODE(ArrayAtLookup);
DECLARE_NBO_SERIALIZE;
ArrayAtLookup() noexcept;
~ArrayAtLookup() override;
ArrayAtLookup(const vespalib::string &attribute, ExpressionNode::UP arg);
ArrayAtLookup(const search::attribute::IAttributeVector &attr, ExpressionNode::UP indexArg);
ArrayAtLookup(const ArrayAtLookup &rhs);
ArrayAtLookup & operator= (const ArrayAtLookup &rhs);
bool onExecute() const override;
void visitMembers(vespalib::ObjectVisitor & visitor) const override;
void selectMembers(const vespalib::ObjectPredicate & predicate, vespalib::ObjectOperation & operation) override;
private:
mutable CurrentIndex _currentIndex;
ExpressionNode::CP _indexExpression;
};
}
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