有没有办法在Qt5 qml中做C++宏？

#ifndef MACROHELPER_H
#define MACROHELPER_H

#include <QObject>

class MacroHelper : public QObject
{
    Q_OBJECT
public:
    explicit MacroHelper(QObject *parent = nullptr);

    Q_INVOKABLE QString myMacro(const QString &input);
};

#endif // MACROHELPER_H

#include "macrohelper.h"

MacroHelper::MacroHelper(QObject *parent) : QObject(parent)
{
}

QString MacroHelper::myMacro(const QString &input)
{
    // 宏的实现逻辑
    return "Processed: " + input;
}

import QtQuick 2.0

Item {
    id: root

    // 创建宏的实现类的实例
    property var macroHelper: MacroHelper {}

    // 调用宏的功能
    function myMacro(input) {
        return macroHelper.myMacro(input);
    }

    // 使用宏
    Component.onCompleted: {
        var result = myMacro("Hello World");
        console.log(result); // 输出：Processed: Hello World
    }
}