blob: 7fb189b140d60b2f3d7290da9db351cc232c3b3b (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "unaryfunctionnode.h"
#include <vespa/vespalib/objects/nbostream.h>
namespace search::expression {
class UnaryBitFunctionNode : public UnaryFunctionNode
{
public:
DECLARE_NBO_SERIALIZE;
void visitMembers(vespalib::ObjectVisitor &visitor) const override;
DECLARE_ABSTRACT_EXPRESSIONNODE(UnaryBitFunctionNode);
UnaryBitFunctionNode() : _numBits(0) { }
UnaryBitFunctionNode(ExpressionNode::UP arg, unsigned numBits) : UnaryFunctionNode(std::move(arg)), _numBits(numBits) { }
~UnaryBitFunctionNode() override;
protected:
size_t getNumBits() const { return _numBits; }
size_t getNumBytes() const { return (_numBits+7)/8; }
void onPrepareResult() override;
private:
void onPrepare(bool preserveAccurateTypes) override;
virtual bool internalExecute(const vespalib::nbostream & os) const = 0;
bool onExecute() const override;
uint32_t _numBits;
mutable vespalib::nbostream _tmpOs;
};
}
|
