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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 "singleresultnode.h"
namespace search::expression {
class NullResultNode : public SingleResultNode
{
public:
DECLARE_EXPRESSIONNODE(NullResultNode);
size_t hash() const override;
int onCmp(const Identifiable & b) const override;
void set(const ResultNode & rhs) override;
void min(const ResultNode & b) override;
void max(const ResultNode & b) override;
void add(const ResultNode & b) override;
private:
void setMin() override;
void setMax() override;
int64_t onGetInteger(size_t index) const override;
double onGetFloat(size_t index) const override;
ConstBufferRef onGetString(size_t index, BufferRef buf) const override;
size_t onGetRawByteSize() const override { return 0; }
void create(void * buf) const override { (void) buf; }
void destroy(void * buf) const override { (void) buf;}
void decode(const void * buf) override { (void) buf; }
void encode(void * buf) const override { (void) buf; }
void swap(void * buf) override { (void) buf; }
};
}
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