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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/document/select/valuenodes.h>
namespace search { class ReadableAttributeVector; }
namespace proton {
class AttributeFieldValueNode : public document::select::FieldValueNode
{
using Context = document::select::Context;
uint32_t _attr_guard_index;
public:
// Precondition: attribute must be of a single-value type.
AttributeFieldValueNode(const vespalib::string& doctype,
const vespalib::string& field,
uint32_t attr_guard_index);
std::unique_ptr<document::select::Value> getValue(const Context &context) const override;
std::unique_ptr<document::select::Value> traceValue(const Context &context, std::ostream& out) const override;
document::select::ValueNode::UP clone() const override;
};
} // namespace proton
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