1// Copyright (C) 2024 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#include <QtProtobuf/private/qprotobufserializerbase_p.h>
5
6#include <QtProtobuf/private/qprotobufregistration_p.h>
7#include <QtProtobuf/private/qtprotobufdefs_p.h>
8#include <QtProtobuf/private/qtprotobuflogging_p.h>
9#include <QtProtobuf/private/qtprotobufserializerhelpers_p.h>
10
11#include <QtProtobuf/qprotobufmessage.h>
12#include <QtProtobuf/qprotobufpropertyordering.h>
13#include <QtProtobuf/qprotobufrepeatediterator.h>
14#include <QtProtobuf/qtprotobuftypes.h>
15
16QT_BEGIN_NAMESPACE
17
18QProtobufSerializerBase::QProtobufSerializerBase() = default;
19QProtobufSerializerBase::~QProtobufSerializerBase() = default;
20
21void QProtobufSerializerBase::serializeMessage(const QProtobufMessage *message)
22{
23 Q_ASSERT(message != nullptr);
24
25 const auto *ordering = message->propertyOrdering();
26 Q_ASSERT(ordering != nullptr);
27
28 for (int index = 0; index < ordering->fieldCount(); ++index) {
29 int fieldNumber = ordering->fieldNumber(index);
30 Q_ASSERT_X(fieldNumber <= ProtobufFieldNumMax && fieldNumber >= ProtobufFieldNumMin, "",
31 "Protobuf field number is out of range");
32 QtProtobufPrivate::QProtobufFieldInfo fieldInfo(*ordering, index);
33 QVariant value = QtProtobufSerializerHelpers::messageProperty(message, fieldInfo);
34 QMetaType metaType = value.metaType();
35
36 // Empty value
37 if (metaType.id() == QMetaType::UnknownType || value.isNull())
38 continue;
39
40 if (metaType.flags().testFlag(flag: QMetaType::IsPointer)) {
41 serializeMessageField(message: value.value<QProtobufMessage *>(), fieldInfo);
42 continue;
43 }
44
45 if (value.canView(targetType: QMetaType::fromType<QProtobufRepeatedIterator>())) {
46 QProtobufRepeatedIterator propertyIt = value.view<QProtobufRepeatedIterator>();
47 while (propertyIt.hasNext())
48 serializeMessageField(message: propertyIt.next(), fieldInfo);
49 continue;
50 }
51
52 QtProtobufPrivate::FieldFlags flags = fieldInfo.fieldFlags();
53 // Convert enums to something known by scalar type serializers
54 if (flags.testFlag(flag: QtProtobufPrivate::FieldFlag::Enum)) {
55 if (!serializeEnum(value, fieldInfo))
56 qProtoWarning() << metaType << " is not registered as protobuf enum";
57 continue;
58 }
59
60 if (serializeScalarField(value, fieldInfo))
61 continue;
62
63 auto handler = QtProtobufPrivate::findHandler(type: metaType);
64 if (!handler.serializer) {
65 qProtoWarning("No serializer found for type %s", value.typeName());
66 continue;
67 }
68
69 handler.serializer([this](const QProtobufMessage *message,
70 const QtProtobufPrivate::QProtobufFieldInfo
71 &fieldInfo) { serializeMessageField(message, fieldInfo); },
72 value.constData(), fieldInfo);
73 }
74}
75
76void QProtobufSerializerBase::serializeMessageField(const QProtobufMessage *message,
77 const QtProtobufPrivate::QProtobufFieldInfo
78 &fieldInfo)
79{
80 serializeMessageFieldBegin();
81 serializeMessage(message);
82 serializeMessageFieldEnd(message, fieldInfo);
83}
84
85QT_END_NAMESPACE
86

source code of qtgrpc/src/protobuf/qprotobufserializerbase.cpp