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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; }
namespace search::expression {
class InterpolatedLookup : public AttributeNode
{
public:
DECLARE_EXPRESSIONNODE(InterpolatedLookup);
DECLARE_NBO_SERIALIZE;
InterpolatedLookup() noexcept;
~InterpolatedLookup() override;
InterpolatedLookup(const vespalib::string &attribute, ExpressionNode::UP arg);
InterpolatedLookup(const search::attribute::IAttributeVector &attr, ExpressionNode::UP lookupArg);
InterpolatedLookup(const InterpolatedLookup &rhs);
InterpolatedLookup & operator= (const InterpolatedLookup &rhs);
void visitMembers(vespalib::ObjectVisitor & visitor) const override;
void selectMembers(const vespalib::ObjectPredicate & predicate, vespalib::ObjectOperation & operation) override;
private:
std::pair<std::unique_ptr<ResultNode>, std::unique_ptr<Handler>>
createResultHandler(bool preserveAccurateType, const attribute::IAttributeVector & attribute) const override;
ExpressionNode::CP _lookupExpression;
};
}
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