1// Copyright (C) 2019 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#ifndef QQMLMETATYPEDATA_P_H
5#define QQMLMETATYPEDATA_P_H
6
7//
8// W A R N I N G
9// -------------
10//
11// This file is not part of the Qt API. It exists purely as an
12// implementation detail. This header file may change from version to
13// version without notice, or even be removed.
14//
15// We mean it.
16//
17
18#include <private/qqmltype_p.h>
19#include <private/qqmlmetatype_p.h>
20#include <private/qhashedstring_p.h>
21#include <private/qqmlvaluetype_p.h>
22
23#include <QtCore/qset.h>
24#include <QtCore/qvector.h>
25
26QT_BEGIN_NAMESPACE
27
28class QQmlTypePrivate;
29struct QQmlMetaTypeData
30{
31 QQmlMetaTypeData();
32 ~QQmlMetaTypeData();
33 void registerType(QQmlTypePrivate *priv);
34 QList<QQmlType> types;
35 QSet<QQmlType> undeletableTypes;
36 typedef QHash<int, QQmlTypePrivate *> Ids;
37 Ids idToType;
38
39 using Names = QMultiHash<QHashedString, const QQmlTypePrivate *>;
40 Names nameToType;
41
42 typedef QHash<QUrl, const QQmlTypePrivate *> Files; //For file imported composite types only
43 Files urlToType;
44 Files urlToNonFileImportType; // For non-file imported composite and composite
45 // singleton types. This way we can locate any
46 // of them by url, even if it was registered as
47 // a module via QQmlPrivate::RegisterCompositeType
48 typedef QMultiHash<const QMetaObject *, QQmlTypePrivate *> MetaObjects;
49 MetaObjects metaObjectToType;
50 QVector<QHash<QTypeRevision, QQmlPropertyCache::ConstPtr>> typePropertyCaches;
51 QHash<int, QQmlValueType *> metaTypeToValueType;
52
53 using CompositeTypes = QHash<const QtPrivate::QMetaTypeInterface *,
54 QQmlRefPointer<QV4::CompiledData::CompilationUnit>>;
55 CompositeTypes compositeTypes;
56 QHash<QUrl, QQmlType> inlineComponentTypes;
57
58 struct VersionedUri {
59 VersionedUri() = default;
60 VersionedUri(const QString &uri, QTypeRevision version)
61 : uri(uri), majorVersion(version.majorVersion()) {}
62 VersionedUri(const std::unique_ptr<QQmlTypeModule> &module);
63
64 friend bool operator==(const VersionedUri &a, const VersionedUri &b)
65 {
66 return a.majorVersion == b.majorVersion && a.uri == b.uri;
67 }
68
69 friend size_t qHash(const VersionedUri &v, size_t seed = 0)
70 {
71 return qHashMulti(seed, args: v.uri, args: v.majorVersion);
72 }
73
74 friend bool operator<(const QQmlMetaTypeData::VersionedUri &a,
75 const QQmlMetaTypeData::VersionedUri &b)
76 {
77 const int diff = a.uri.compare(s: b.uri);
78 return diff < 0 || (diff == 0 && a.majorVersion < b.majorVersion);
79 }
80
81 QString uri;
82 quint8 majorVersion = 0;
83 };
84
85 typedef std::vector<std::unique_ptr<QQmlTypeModule>> TypeModules;
86 TypeModules uriToModule;
87 QQmlTypeModule *findTypeModule(const QString &module, QTypeRevision version);
88 QQmlTypeModule *addTypeModule(std::unique_ptr<QQmlTypeModule> module);
89
90 using ModuleImports = QMultiMap<VersionedUri, QQmlDirParser::Import>;
91 ModuleImports moduleImports;
92
93 QHash<QString, void (*)()> moduleTypeRegistrationFunctions;
94 bool registerModuleTypes(const QString &uri);
95
96 QSet<int> interfaces;
97
98 QList<QQmlPrivate::AutoParentFunction> parentFunctions;
99 QVector<QQmlPrivate::QmlUnitCacheLookupFunction> lookupCachedQmlUnit;
100
101 QHash<const QMetaObject *, QQmlPropertyCache::ConstPtr> propertyCaches;
102
103 QQmlPropertyCache::ConstPtr propertyCacheForVersion(int index, QTypeRevision version) const;
104 void setPropertyCacheForVersion(
105 int index, QTypeRevision version, const QQmlPropertyCache::ConstPtr &cache);
106 void clearPropertyCachesForVersion(int index);
107
108 QQmlPropertyCache::ConstPtr propertyCache(const QMetaObject *metaObject, QTypeRevision version);
109 QQmlPropertyCache::ConstPtr propertyCache(const QQmlType &type, QTypeRevision version);
110 QQmlPropertyCache::ConstPtr findPropertyCacheInCompositeTypes(QMetaType t) const;
111
112 void setTypeRegistrationFailures(QStringList *failures)
113 {
114 m_typeRegistrationFailures = failures;
115 }
116
117 void recordTypeRegFailure(const QString &message)
118 {
119 if (m_typeRegistrationFailures)
120 m_typeRegistrationFailures->append(t: message);
121 else
122 qWarning(msg: "%s", message.toUtf8().constData());
123 }
124
125private:
126 QStringList *m_typeRegistrationFailures = nullptr;
127};
128
129QT_END_NAMESPACE
130
131#endif // QQMLMETATYPEDATA_P_H
132

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source code of qtdeclarative/src/qml/qml/qqmlmetatypedata_p.h