serialize_pointer.h 3.4 KB
Newer Older
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 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
/***************************************************************************
**
** Copyright (C) 2015 Jochen Becher
** Contact: http://www.qt.io/licensing
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company.  For licensing terms and
** conditions see http://www.qt.io/terms-conditions.  For further information
** use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, The Qt Company gives you certain additional
** rights.  These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/

#ifndef QARK_SERIALIZE_POINTER_H
#define QARK_SERIALIZE_POINTER_H

#include "typeregistry.h"

namespace qark {

template<class Archive, class T>
inline void save(Archive &archive, T *p, const Parameters &)
{
    if (p) {
        if (archive.isReference(p)) {
            archive.beginPointer();
            archive.write(p);
            archive.endPointer();
        } else {
            if (typeid(*p) == typeid(T)) {
                archive.beginInstance();
49
                registry::savePointer<Archive, T, T>(archive, p);
50 51
                archive.endInstance();
            } else {
52
                archive.beginInstance(typeUid(*p));
53
                typename registry::TypeRegistry<Archive, T>::TypeInfo typeData = typeInfo<Archive, T>(*p);
54
                if (typeData.m_saveFunc == 0) {
55
                    throw UnregisteredType();
56
                } else {
57
                    typeData.m_saveFunc(archive, p);
58 59 60 61 62 63 64 65 66 67 68 69 70
                }
                archive.endInstance();
            }
        }
    } else {
        archive.beginNullPointer();
        archive.endNullPointer();
    }
}

template<class Archive, class T>
void load(Archive &archive, T *&p, const Parameters &)
{
71 72
    typename Archive::ReferenceTag refTag = archive.readReferenceTag();
    switch (refTag.kind) {
73
    case Archive::Nullpointer:
74 75
        p = 0;
        break;
76
    case Archive::Pointer:
77 78
        archive.read(p);
        break;
79
    case Archive::Instance:
80 81
        if (refTag.typeName.isEmpty()) {
            registry::loadNonVirtualPointer<Archive,T>(archive, p);
82
        } else {
83
            typename registry::TypeRegistry<Archive, T>::TypeInfo typeData = typeInfo<Archive, T>(refTag.typeName);
84
            if (typeData.m_loadFunc == 0) {
85
                throw UnregisteredType();
86
            } else {
87
                typeData.m_loadFunc(archive, p);
88 89 90 91
            }
        }
        break;
    }
92
    archive.readReferenceEndTag(refTag.kind);
93 94 95 96 97 98
}

}

#endif // QARK_SERIALIZE_POINTER_H