Inspectable.h

// -----------------------------------------------------------------------------
// This file is part of VirtualC64
//
// Copyright (C) Dirk W. Hoffmann. www.dirkwhoffmann.de
// This FILE is dual-licensed. You are free to choose between:
//
//     - The GNU General Public License v3 (or any later version)
//     - The Mozilla Public License v2
//
// SPDX-License-Identifier: GPL-3.0-or-later OR MPL-2.0
// -----------------------------------------------------------------------------
 
#pragma once
 
#include "Dumpable.h"
#include <iostream>
 
namespace vc64 {
 
struct Void { };
 
template <typename T1, typename T2 = Void>
class Inspectable {
 
protected:
    
    mutable T1 info;
    mutable T2 stats;
 
public:
 
    Inspectable() { }
    virtual ~Inspectable() = default;
 
    T1 &getInfo() const {
 
        cacheInfo(info);
        return info;
    }
 
    T1 &getCachedInfo() const {
 
        return info;
    }
 
    T2 &getStats() const {
 
        cacheStats(stats);
        return stats;
    }
 
    T2 &getCachedStats() const {
 
        return stats;
    }
 
    virtual void clearStats() {
 
        memset(&stats, 0, sizeof(stats));
    }
 
    virtual void record() const {
 
        cacheInfo(info);
        cacheStats(stats);
    }
 
private:
 
    virtual void cacheInfo(T1 &result) const { };
    virtual void cacheStats(T2 &result) const { };
};
 
}