summaryrefslogtreecommitdiff
path: root/tests/auto/qdbusmarshall/common.h
blob: 09a6a3f40d5ea356d51c5977888ffa77338614ac (plain)
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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <math.h>               // isnan
#include <qvariant.h>

#ifdef Q_OS_UNIX
# include <private/qcore_unix_p.h>

static bool compareFileDescriptors(int fd1, int fd2)
{
    QT_STATBUF st1, st2;
    if (QT_FSTAT(fd1, &st1) == -1 || QT_FSTAT(fd2, &st2) == -1) {
        perror("fstat");
        return false;
    }

    return (st1.st_dev == st2.st_dev) && (st1.st_ino == st2.st_ino);
}
#endif

Q_DECLARE_METATYPE(QVariant)
Q_DECLARE_METATYPE(QList<bool>)
Q_DECLARE_METATYPE(QList<short>)
Q_DECLARE_METATYPE(QList<ushort>)
Q_DECLARE_METATYPE(QList<int>)
Q_DECLARE_METATYPE(QList<uint>)
Q_DECLARE_METATYPE(QList<qlonglong>)
Q_DECLARE_METATYPE(QList<qulonglong>)
Q_DECLARE_METATYPE(QList<double>)
Q_DECLARE_METATYPE(QList<QDBusVariant>)
Q_DECLARE_METATYPE(QList<QDateTime>)

Q_DECLARE_METATYPE(QList<QByteArray>)
Q_DECLARE_METATYPE(QList<QVariantList>)
Q_DECLARE_METATYPE(QList<QStringList>)
Q_DECLARE_METATYPE(QList<QList<bool> >)
Q_DECLARE_METATYPE(QList<QList<short> >)
Q_DECLARE_METATYPE(QList<QList<ushort> >)
Q_DECLARE_METATYPE(QList<QList<int> >)
Q_DECLARE_METATYPE(QList<QList<uint> >)
Q_DECLARE_METATYPE(QList<QList<qlonglong> >)
Q_DECLARE_METATYPE(QList<QList<qulonglong> >)
Q_DECLARE_METATYPE(QList<QList<double> >)
Q_DECLARE_METATYPE(QList<QList<QDBusObjectPath> >)
Q_DECLARE_METATYPE(QList<QList<QDBusSignature> >)

typedef QMap<int, QString> IntStringMap;
typedef QMap<QString, QString> StringStringMap;
typedef QMap<QDBusObjectPath, QString> ObjectPathStringMap;
typedef QHash<qlonglong, QDateTime> LLDateTimeMap;
typedef QHash<QDBusSignature, QString> SignatureStringMap;
Q_DECLARE_METATYPE(IntStringMap)
Q_DECLARE_METATYPE(StringStringMap)
Q_DECLARE_METATYPE(ObjectPathStringMap)
Q_DECLARE_METATYPE(LLDateTimeMap)
Q_DECLARE_METATYPE(SignatureStringMap)

static bool compare(const QDBusUnixFileDescriptor &t1, const QDBusUnixFileDescriptor &t2)
{
    int fd1 = t1.fileDescriptor();
    int fd2 = t2.fileDescriptor();
    if ((fd1 == -1 || fd2 == -1) && fd1 != fd2) {
        // one is valid, the other isn't
        return false;
    }

#ifdef Q_OS_UNIX
    return compareFileDescriptors(fd1, fd2);
#else
    return true;
#endif
}

struct MyStruct
{
    int i;
    QString s;

    inline bool operator==(const MyStruct &other) const
    { return i == other.i && s == other.s; }
};
Q_DECLARE_METATYPE(MyStruct)

QDBusArgument &operator<<(QDBusArgument &arg, const MyStruct &ms)
{
    arg.beginStructure();
    arg << ms.i << ms.s;
    arg.endStructure();
    return arg;
}

const QDBusArgument &operator>>(const QDBusArgument &arg, MyStruct &ms)
{
    arg.beginStructure();
    arg >> ms.i >> ms.s;
    arg.endStructure();
    return arg;
}

struct MyVariantMapStruct
{
    QString s;
    QVariantMap map;

    inline bool operator==(const MyVariantMapStruct &other) const
    { return s == other.s && map == other.map; }
};
Q_DECLARE_METATYPE(MyVariantMapStruct)
Q_DECLARE_METATYPE(QList<MyVariantMapStruct>)

QDBusArgument &operator<<(QDBusArgument &arg, const MyVariantMapStruct &ms)
{
    arg.beginStructure();
    arg << ms.s << ms.map;
    arg.endStructure();
    return arg;
}

const QDBusArgument &operator>>(const QDBusArgument &arg, MyVariantMapStruct &ms)
{
    arg.beginStructure();
    arg >> ms.s >> ms.map;
    arg.endStructure();
    return arg;
}

struct MyFileDescriptorStruct
{
    QDBusUnixFileDescriptor fd;

    inline bool operator==(const MyFileDescriptorStruct &other) const
    { return compare(fd, other.fd); }
};
Q_DECLARE_METATYPE(MyFileDescriptorStruct)
Q_DECLARE_METATYPE(QList<MyFileDescriptorStruct>)

QDBusArgument &operator<<(QDBusArgument &arg, const MyFileDescriptorStruct &ms)
{
    arg.beginStructure();
    arg << ms.fd;
    arg.endStructure();
    return arg;
}

const QDBusArgument &operator>>(const QDBusArgument &arg, MyFileDescriptorStruct &ms)
{
    arg.beginStructure();
    arg >> ms.fd;
    arg.endStructure();
    return arg;
}


void commonInit()
{
    qDBusRegisterMetaType<QList<QDateTime> >();
    qDBusRegisterMetaType<QList<QStringList> >();
    qDBusRegisterMetaType<QList<QByteArray> >();
    qDBusRegisterMetaType<QList<QList<bool> > >();
    qDBusRegisterMetaType<QList<QList<short> > >();
    qDBusRegisterMetaType<QList<QList<ushort> > >();
    qDBusRegisterMetaType<QList<QList<int> > >();
    qDBusRegisterMetaType<QList<QList<uint> > >();
    qDBusRegisterMetaType<QList<QList<qlonglong> > >();
    qDBusRegisterMetaType<QList<QList<qulonglong> > >();
    qDBusRegisterMetaType<QList<QList<double> > >();
    qDBusRegisterMetaType<QList<QList<QDBusObjectPath> > >();
    qDBusRegisterMetaType<QList<QList<QDBusSignature> > >();
    qDBusRegisterMetaType<QList<QVariantList> >();

    qDBusRegisterMetaType<QMap<int, QString> >();
    qDBusRegisterMetaType<QMap<QString, QString> >();
    qDBusRegisterMetaType<QMap<QDBusObjectPath, QString> >();
    qDBusRegisterMetaType<QHash<qlonglong, QDateTime> >();
    qDBusRegisterMetaType<QHash<QDBusSignature, QString> >();

    qDBusRegisterMetaType<MyStruct>();
    qDBusRegisterMetaType<MyVariantMapStruct>();
    qDBusRegisterMetaType<QList<MyVariantMapStruct> >();
    qDBusRegisterMetaType<MyFileDescriptorStruct>();
    qDBusRegisterMetaType<QList<MyFileDescriptorStruct> >();
}
#ifdef USE_PRIVATE_CODE
#include "private/qdbusintrospection_p.h"

// just to make it easier:
typedef QDBusIntrospection::Interfaces InterfaceMap;
typedef QDBusIntrospection::Objects ObjectMap;
typedef QDBusIntrospection::Arguments ArgumentList;
typedef QDBusIntrospection::Annotations AnnotationsMap;
typedef QDBusIntrospection::Methods MethodMap;
typedef QDBusIntrospection::Signals SignalMap;
typedef QDBusIntrospection::Properties PropertyMap;

Q_DECLARE_METATYPE(QDBusIntrospection::Method)
Q_DECLARE_METATYPE(QDBusIntrospection::Signal)
Q_DECLARE_METATYPE(QDBusIntrospection::Property)
Q_DECLARE_METATYPE(MethodMap)
Q_DECLARE_METATYPE(SignalMap)
Q_DECLARE_METATYPE(PropertyMap)

inline QDBusIntrospection::Argument arg(const char* type, const char *name = 0)
{
    QDBusIntrospection::Argument retval;
    retval.type = QLatin1String(type);
    retval.name = QLatin1String(name);
    return retval;
}

template<typename T>
inline QMap<QString, T>& operator<<(QMap<QString, T>& map, const T& m)
{ map.insertMulti(m.name, m); return map; }

inline const char* mapName(const MethodMap&)
{ return "MethodMap"; }

inline const char* mapName(const SignalMap&)
{ return "SignalMap"; }

inline const char* mapName(const PropertyMap&)
{ return "PropertyMap"; }

QString printable(const QDBusIntrospection::Method& m)
{
    QString result = "method " + m.name + "(";
    foreach (QDBusIntrospection::Argument arg, m.inputArgs)
        result += QString("in %1 %2, ")
        .arg(arg.type, arg.name);
    foreach (QDBusIntrospection::Argument arg, m.outputArgs)
        result += QString("out %1 %2, ")
        .arg(arg.type, arg.name);
    AnnotationsMap::const_iterator it = m.annotations.begin();
    for ( ; it != m.annotations.end(); ++it)
        result += QString("%1 \"%2\", ").arg(it.key()).arg(it.value());

    result += ")";
    return result;
}

QString printable(const QDBusIntrospection::Signal& s)
{
    QString result = "signal " + s.name + "(";
    foreach (QDBusIntrospection::Argument arg, s.outputArgs)
        result += QString("out %1 %2, ")
        .arg(arg.type, arg.name);
    AnnotationsMap::const_iterator it = s.annotations.begin();
    for ( ; it != s.annotations.end(); ++it)
        result += QString("%1 \"%2\", ").arg(it.key()).arg(it.value());

    result += ")";
    return result;
}

QString printable(const QDBusIntrospection::Property& p)
{
    QString result;
    if (p.access == QDBusIntrospection::Property::Read)
        result = "property read %1 %2, ";
    else if (p.access == QDBusIntrospection::Property::Write)
        result = "property write %1 %2, ";
    else
        result = "property readwrite %1 %2, ";
    result = result.arg(p.type, p.name);

    AnnotationsMap::const_iterator it = p.annotations.begin();
    for ( ; it != p.annotations.end(); ++it)
        result += QString("%1 \"%2\", ").arg(it.key()).arg(it.value());

    return result;
}

template<typename T>
char* printableMap(const QMap<QString, T>& map)
{
    QString contents = "\n";
    typename QMap<QString, T>::const_iterator it = map.begin();
    for ( ; it != map.end(); ++it) {
        if (it.key() != it.value().name)
            contents += it.value().name + ":";
        contents += printable(it.value());
        contents += ";\n";
    }

    QString result("%1(size = %2): {%3}");
    return qstrdup(qPrintable(result
                              .arg(mapName(map))
                              .arg(map.size())
                              .arg(contents)));
}

QT_BEGIN_NAMESPACE
namespace QTest {
    template<>
    inline char* toString(const MethodMap& map)
    {
        return printableMap(map);
    }

    template<>
    inline char* toString(const SignalMap& map)
    {
        return printableMap(map);
    }

    template<>
    inline char* toString(const PropertyMap& map)
    {
        return printableMap(map);
    }
}
QT_END_NAMESPACE

#endif

//bool compare(const QVariantList &l1, const QVariantList &l2);
//bool compare(const QVariantMap &m1, const QVariantMap &m2);
template<typename T>
bool compare(const T &t1, const T &t2)
{ return t1 == t2; }

template<>
bool compare(const QVariant &v1, const QVariant &v2);

bool compare(double d1, double d2)
{
    if (isnan(d1) && isnan(d2))
        return true;
    return d1 == d2;
}

template<>
bool compare(const QString &s1, const QString &s2)
{
    if (s1.isEmpty() && s2.isEmpty())
        return true;            // regardless of whether one of them is null
    return s1 == s2;
}

template<>
bool compare(const QByteArray &ba1, const QByteArray &ba2)
{
    if (ba1.isEmpty() && ba2.isEmpty())
        return true;            // regardless of whether one of them is null
    return ba1 == ba2;
}

template<>
bool compare(const QDBusVariant &s1, const QDBusVariant &s2)
{
    return compare(s1.variant(), s2.variant());
}

template<typename T>
bool compare(const QList<T> &l1, const QList<T> &l2)
{
    if (l1.count() != l2.count())
        return false;

    typename QList<T>::ConstIterator it1 = l1.constBegin();
    typename QList<T>::ConstIterator it2 = l2.constBegin();
    typename QList<T>::ConstIterator end = l1.constEnd();
    for ( ; it1 != end; ++it1, ++it2)
        if (!compare(*it1, *it2))
            return false;
    return true;
}

template<typename Key, typename T>
bool compare(const QMap<Key, T> &m1, const QMap<Key, T> &m2)
{
    if (m1.count() != m2.size())
        return false;
    typename QMap<Key, T>::ConstIterator i1 = m1.constBegin();
    typename QMap<Key, T>::ConstIterator end = m1.constEnd();
    for ( ; i1 != end; ++i1) {
        typename QMap<Key, T>::ConstIterator i2 = m2.find(i1.key());
        if (i2 == m2.constEnd())
            return false;
        if (!compare(*i1, *i2))
            return false;
    }
    return true;
}

template<typename Key, typename T>
bool compare(const QHash<Key, T> &m1, const QHash<Key, T> &m2)
{
    if (m1.count() != m2.size())
        return false;
    typename QHash<Key, T>::ConstIterator i1 = m1.constBegin();
    typename QHash<Key, T>::ConstIterator end = m1.constEnd();
    for ( ; i1 != end; ++i1) {
        typename QHash<Key, T>::ConstIterator i2 = m2.find(i1.key());
        if (i2 == m2.constEnd())
            return false;
        if (!compare(*i1, *i2))
            return false;
    }
    return true;
}

template<typename T>
inline bool compare(const QDBusArgument &arg, const QVariant &v2, T * = 0)
{
    return compare(qdbus_cast<T>(arg), qvariant_cast<T>(v2));
}

bool compareToArgument(const QDBusArgument &arg, const QVariant &v2)
{
    if (arg.currentSignature() != QDBusMetaType::typeToSignature(v2.userType()))
        return false;

    // try to demarshall the arg according to v2
    switch (v2.userType())
    {
    case QVariant::Bool:
        return compare<bool>(arg, v2);
    case QMetaType::UChar:
        return compare<uchar>(arg, v2);
    case QMetaType::Short:
        return compare<short>(arg, v2);
    case QMetaType::UShort:
        return compare<ushort>(arg, v2);
    case QVariant::Int:
        return compare<int>(arg, v2);
    case QVariant::UInt:
        return compare<uint>(arg, v2);
    case QVariant::LongLong:
        return compare<qlonglong>(arg, v2);
    case QVariant::ULongLong:
        return compare<qulonglong>(arg, v2);
    case QVariant::Double:
        return compare<double>(arg, v2);
    case QVariant::String:
        return compare<QString>(arg, v2);
    case QVariant::ByteArray:
        return compare<QByteArray>(arg, v2);
    case QVariant::List:
        return compare<QVariantList>(arg, v2);
    case QVariant::Map:
        return compare<QVariantMap>(arg, v2);
    case QVariant::Point:
        return compare<QPoint>(arg, v2);
    case QVariant::PointF:
        return compare<QPointF>(arg, v2);
    case QVariant::Size:
        return compare<QSize>(arg, v2);
    case QVariant::SizeF:
        return compare<QSizeF>(arg, v2);
    case QVariant::Line:
        return compare<QLine>(arg, v2);
    case QVariant::LineF:
        return compare<QLineF>(arg, v2);
    case QVariant::Rect:
        return compare<QRect>(arg, v2);
    case QVariant::RectF:
        return compare<QRectF>(arg, v2);
    case QVariant::Date:
        return compare<QDate>(arg, v2);
    case QVariant::Time:
        return compare<QTime>(arg, v2);
    case QVariant::DateTime:
        return compare<QDateTime>(arg, v2);
    default:
        register int id = v2.userType();
        if (id == qMetaTypeId<QDBusObjectPath>())
            return compare<QDBusObjectPath>(arg, v2);
        else if (id == qMetaTypeId<QDBusSignature>())
            return compare<QDBusSignature>(arg, v2);
        else if (id == qMetaTypeId<QDBusVariant>())
            return compare<QDBusVariant>(arg, v2);
        else if (id == qMetaTypeId<QList<bool> >())
            return compare<QList<bool> >(arg, v2);
        else if (id == qMetaTypeId<QList<short> >())
            return compare<QList<short> >(arg, v2);
        else if (id == qMetaTypeId<QList<ushort> >())
            return compare<QList<ushort> >(arg, v2);
        else if (id == qMetaTypeId<QList<int> >())
            return compare<QList<int> >(arg, v2);
        else if (id == qMetaTypeId<QList<uint> >())
            return compare<QList<uint> >(arg, v2);
        else if (id == qMetaTypeId<QList<qlonglong> >())
            return compare<QList<qlonglong> >(arg, v2);
        else if (id == qMetaTypeId<QList<qulonglong> >())
            return compare<QList<qulonglong> >(arg, v2);
        else if (id == qMetaTypeId<QList<double> >())
            return compare<QList<double> >(arg, v2);
        else if (id == qMetaTypeId<QList<QDBusObjectPath> >())
            return compare<QList<QDBusObjectPath> >(arg, v2);
        else if (id == qMetaTypeId<QList<QDBusSignature> >())
            return compare<QList<QDBusSignature> >(arg, v2);
        else if (id == qMetaTypeId<QList<QDBusUnixFileDescriptor> >())
            return compare<QList<QDBusUnixFileDescriptor> >(arg, v2);
        else if (id == qMetaTypeId<QList<QDateTime> >())
            return compare<QList<QDateTime> >(arg, v2);

        else if (id == qMetaTypeId<QMap<int, QString> >())
            return compare<QMap<int, QString> >(arg, v2);
        else if (id == qMetaTypeId<QMap<QString, QString> >())
            return compare<QMap<QString, QString> >(arg, v2);
        else if (id == qMetaTypeId<QMap<QDBusObjectPath, QString> >())
            return compare<QMap<QDBusObjectPath, QString> >(arg, v2);
        else if (id == qMetaTypeId<QHash<qlonglong, QDateTime> >())
            return compare<QHash<qlonglong, QDateTime> >(arg, v2);
        else if (id == qMetaTypeId<QHash<QDBusSignature, QString> >())
            return compare<QHash<QDBusSignature, QString> >(arg, v2);

        else if (id == qMetaTypeId<QList<QByteArray> >())
            return compare<QList<QByteArray> >(arg, v2);
        else if (id == qMetaTypeId<QList<QList<bool> > >())
            return compare<QList<QList<bool> > >(arg, v2);
        else if (id == qMetaTypeId<QList<QList<short> > >())
            return compare<QList<QList<short> > >(arg, v2);
        else if (id == qMetaTypeId<QList<QList<ushort> > >())
            return compare<QList<QList<ushort> > >(arg, v2);
        else if (id == qMetaTypeId<QList<QList<int> > >())
            return compare<QList<QList<int> > >(arg, v2);
        else if (id == qMetaTypeId<QList<QList<uint> > >())
            return compare<QList<QList<uint> > >(arg, v2);
        else if (id == qMetaTypeId<QList<QList<qlonglong> > >())
            return compare<QList<QList<qlonglong> > >(arg, v2);
        else if (id == qMetaTypeId<QList<QList<qulonglong> > >())
            return compare<QList<QList<qulonglong> > >(arg, v2);
        else if (id == qMetaTypeId<QList<QList<double> > >())
            return compare<QList<QList<double> > >(arg, v2);
        else if (id == qMetaTypeId<QList<QStringList> >())
            return compare<QList<QStringList> >(arg, v2);
        else if (id == qMetaTypeId<QList<QVariantList> >())
            return compare<QList<QVariantList> >(arg, v2);

        else if (id == qMetaTypeId<MyStruct>())
            return compare<MyStruct>(arg, v2);

        else if (id == qMetaTypeId<MyVariantMapStruct>())
            return compare<MyVariantMapStruct>(arg, v2);
        else if (id == qMetaTypeId<QList<MyVariantMapStruct> >())
            return compare<QList<MyVariantMapStruct> >(arg, v2);
        else if (id == qMetaTypeId<MyFileDescriptorStruct>())
            return compare<MyFileDescriptorStruct>(arg, v2);
        else if (id == qMetaTypeId<QList<MyFileDescriptorStruct> >())
            return compare<QList<MyFileDescriptorStruct> >(arg, v2);
    }

    qWarning() << "Unexpected QVariant type" << v2.userType()
               << QByteArray(QDBusMetaType::typeToSignature(v2.userType()))
               << QVariant::typeToName(QVariant::Type(v2.userType()));
    return false;
}

template<> bool compare(const QVariant &v1, const QVariant &v2)
{
    // v1 is the one that came from the network
    // v2 is the one that we sent

    if (v1.userType() == qMetaTypeId<QDBusArgument>())
        // this argument has been left un-demarshalled
        return compareToArgument(qvariant_cast<QDBusArgument>(v1), v2);

    if (v1.userType() != v2.userType())
        return false;

    int id = v1.userType();
    if (id == QVariant::List)
        return compare(v1.toList(), v2.toList());

    else if (id == QVariant::Map)
        return compare(v1.toMap(), v2.toMap());

    else if (id == QVariant::String)
        return compare(v1.toString(), v2.toString());

    else if (id == QVariant::ByteArray)
        return compare(v1.toByteArray(), v2.toByteArray());

    else if (id < int(QVariant::UserType)) // yes, v1.type()
        // QVariant can compare
        return v1 == v2;

    else if (id == QMetaType::UChar)
        return qvariant_cast<uchar>(v1) == qvariant_cast<uchar>(v2);

    else if (id == QMetaType::Short)
        return qvariant_cast<short>(v1) == qvariant_cast<short>(v2);

    else if (id == QMetaType::UShort)
        return qvariant_cast<ushort>(v1) == qvariant_cast<ushort>(v2);

    else if (id == qMetaTypeId<QDBusObjectPath>())
        return qvariant_cast<QDBusObjectPath>(v1).path() == qvariant_cast<QDBusObjectPath>(v2).path();

    else if (id == qMetaTypeId<QDBusSignature>())
        return qvariant_cast<QDBusSignature>(v1).signature() == qvariant_cast<QDBusSignature>(v2).signature();

    else if (id == qMetaTypeId<QDBusUnixFileDescriptor>())
        return compare(qvariant_cast<QDBusUnixFileDescriptor>(v1), qvariant_cast<QDBusUnixFileDescriptor>(v2));

    else if (id == qMetaTypeId<QDBusVariant>())
        return compare(qvariant_cast<QDBusVariant>(v1).variant(), qvariant_cast<QDBusVariant>(v2).variant());

    else if (id == qMetaTypeId<QVariant>())
        return compare(qvariant_cast<QVariant>(v1), qvariant_cast<QVariant>(v2));

    else if (id == qMetaTypeId<QList<bool> >())
        return qvariant_cast<QList<bool> >(v1) == qvariant_cast<QList<bool> >(v2);

    else if (id == qMetaTypeId<QList<short> >())
        return qvariant_cast<QList<short> >(v1) == qvariant_cast<QList<short> >(v2);

    else if (id == qMetaTypeId<QList<ushort> >())
        return qvariant_cast<QList<ushort> >(v1) == qvariant_cast<QList<ushort> >(v2);

    else if (id == qMetaTypeId<QList<int> >())
        return qvariant_cast<QList<int> >(v1) == qvariant_cast<QList<int> >(v2);

    else if (id == qMetaTypeId<QList<uint> >())
        return qvariant_cast<QList<uint> >(v1) == qvariant_cast<QList<uint> >(v2);

    else if (id == qMetaTypeId<QList<qlonglong> >())
        return qvariant_cast<QList<qlonglong> >(v1) == qvariant_cast<QList<qlonglong> >(v2);

    else if (id == qMetaTypeId<QList<qulonglong> >())
        return qvariant_cast<QList<qulonglong> >(v2) == qvariant_cast<QList<qulonglong> >(v2);

    else if (id == qMetaTypeId<QList<double> >())
        return compare(qvariant_cast<QList<double> >(v1), qvariant_cast<QList<double> >(v2));

    else if (id == qMetaTypeId<QVariant>())
        return compare(qvariant_cast<QVariant>(v1), qvariant_cast<QVariant>(v2));

    else if (id == qMetaTypeId<QList<QList<bool> > >())
        return qvariant_cast<QList<QList<bool> > >(v1) == qvariant_cast<QList<QList<bool> > >(v2);

    else if (id == qMetaTypeId<QList<QList<short> > >())
        return qvariant_cast<QList<QList<short> > >(v1) == qvariant_cast<QList<QList<short> > >(v2);

    else if (id == qMetaTypeId<QList<QList<ushort> > >())
        return qvariant_cast<QList<QList<ushort> > >(v1) == qvariant_cast<QList<QList<ushort> > >(v2);

    else if (id == qMetaTypeId<QList<QList<int> > >())
        return qvariant_cast<QList<QList<int> > >(v1) == qvariant_cast<QList<QList<int> > >(v2);

    else if (id == qMetaTypeId<QList<QList<uint> > >())
        return qvariant_cast<QList<QList<uint> > >(v1) == qvariant_cast<QList<QList<uint> > >(v2);

    else if (id == qMetaTypeId<QList<QList<qlonglong> > >())
        return qvariant_cast<QList<QList<qlonglong> > >(v1) == qvariant_cast<QList<QList<qlonglong> > >(v2);

    else if (id == qMetaTypeId<QList<QList<qulonglong> > >())
        return qvariant_cast<QList<QList<qulonglong> > >(v1) == qvariant_cast<QList<QList<qulonglong> > >(v2);

    else if (id == qMetaTypeId<QList<QList<double> > >())
        return compare(qvariant_cast<QList<QList<double> > >(v1), qvariant_cast<QList<QList<double> > >(v2));

    else if (id == qMetaTypeId<QList<QStringList> >())
        return qvariant_cast<QList<QStringList> >(v1) == qvariant_cast<QList<QStringList> >(v2);

    else if (id == qMetaTypeId<QList<QByteArray> >())
        return qvariant_cast<QList<QByteArray> >(v1) == qvariant_cast<QList<QByteArray> >(v2);

    else if (id == qMetaTypeId<QList<QVariantList> >())
        return compare(qvariant_cast<QList<QVariantList> >(v1), qvariant_cast<QList<QVariantList> >(v2));

    else if (id == qMetaTypeId<QMap<int, QString> >())
        return compare(qvariant_cast<QMap<int, QString> >(v1), qvariant_cast<QMap<int, QString> >(v2));

    else if (id == qMetaTypeId<QMap<QString, QString> >()) // ssmap
        return compare(qvariant_cast<QMap<QString, QString> >(v1), qvariant_cast<QMap<QString, QString> >(v2));

    else if (id == qMetaTypeId<QMap<QDBusObjectPath, QString> >())
        return compare(qvariant_cast<QMap<QDBusObjectPath, QString> >(v1), qvariant_cast<QMap<QDBusObjectPath, QString> >(v2));

    else if (id == qMetaTypeId<QHash<qlonglong, QDateTime> >()) // lldtmap
        return compare(qvariant_cast<QHash<qint64, QDateTime> >(v1), qvariant_cast<QHash<qint64, QDateTime> >(v2));

    else if (id == qMetaTypeId<QHash<QDBusSignature, QString> >())
        return compare(qvariant_cast<QHash<QDBusSignature, QString> >(v1), qvariant_cast<QHash<QDBusSignature, QString> >(v2));

    else if (id == qMetaTypeId<MyStruct>()) // (is)
            return qvariant_cast<MyStruct>(v1) == qvariant_cast<MyStruct>(v2);

    else {
        qWarning() << "Please write a comparison case for type" << v1.typeName();
        return false;           // unknown type
    }
}

#if 0
bool compare(const QVariantList &l1, const QVariantList &l2)
{
    if (l1.count() != l2.size())
        return false;
    QVariantList::ConstIterator i1 = l1.constBegin();
    QVariantList::ConstIterator i2 = l2.constBegin();
    QVariantList::ConstIterator end = l1.constEnd();
    for ( ; i1 != end; ++i1, ++i2) {
        if (!compare(*i1, *i2))
            return false;
    }
    return true;
}

bool compare(const QVariantMap &m1, const QVariantMap &m2)
{
    if (m1.count() != m2.size())
        return false;
    QVariantMap::ConstIterator i1 = m1.constBegin();
    QVariantMap::ConstIterator end = m1.constEnd();
    for ( ; i1 != end; ++i1) {
        QVariantMap::ConstIterator i2 = m2.find(i1.key());
        if (i2 == m2.constEnd())
            return false;
        if (!compare(*i1, *i2))
            return false;
    }
    return true;
}
#endif