Bug Summary

File:usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h
Warning:line 319, column 9
Potential memory leak

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-pc-linux-gnu -analyze -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name workspace_state.cpp -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -fno-delete-null-pointer-checks -mframe-pointer=all -relaxed-aliasing -fmath-errno -ffp-contract=on -fno-rounding-math -ffloat16-excess-precision=fast -fbfloat16-excess-precision=fast -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fdebug-compilation-dir=/builds/wireshark/wireshark/build -fcoverage-compilation-dir=/builds/wireshark/wireshark/build -resource-dir /usr/lib/llvm-21/lib/clang/21 -isystem /usr/include/glib-2.0 -isystem /usr/lib/x86_64-linux-gnu/glib-2.0/include -isystem /builds/wireshark/wireshark/build/ui/qt -isystem /builds/wireshark/wireshark/ui/qt -isystem /usr/include/x86_64-linux-gnu/qt6/QtWidgets -isystem /usr/include/x86_64-linux-gnu/qt6 -isystem /usr/include/x86_64-linux-gnu/qt6/QtCore -isystem /usr/lib/x86_64-linux-gnu/qt6/mkspecs/linux-g++ -isystem /usr/include/x86_64-linux-gnu/qt6/QtGui -isystem /usr/include/x86_64-linux-gnu/qt6/QtCore5Compat -isystem /usr/include/x86_64-linux-gnu/qt6/QtConcurrent -isystem /usr/include/x86_64-linux-gnu/qt6/QtPrintSupport -isystem /usr/include/x86_64-linux-gnu/qt6/QtMultimedia -isystem /usr/include/x86_64-linux-gnu/qt6/QtNetwork -isystem /usr/include/x86_64-linux-gnu/qt6/QtDBus -D G_DISABLE_DEPRECATED -D G_DISABLE_SINGLE_INCLUDES -D QT_CONCURRENT_LIB -D QT_CORE5COMPAT_LIB -D QT_CORE_LIB -D QT_DBUS_LIB -D QT_GUI_LIB -D QT_MULTIMEDIA_LIB -D QT_NETWORK_LIB -D QT_PRINTSUPPORT_LIB -D QT_WIDGETS_LIB -D WS_DEBUG -D WS_DEBUG_UTF_8 -I /builds/wireshark/wireshark/build/ui/qt/qtui_autogen/include -I /builds/wireshark/wireshark/build -I /builds/wireshark/wireshark -I /builds/wireshark/wireshark/include -D _GLIBCXX_ASSERTIONS -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../include/c++/14 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../include/x86_64-linux-gnu/c++/14 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../include/c++/14/backward -internal-isystem /usr/lib/llvm-21/lib/clang/21/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/14/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fmacro-prefix-map=/builds/wireshark/wireshark/= -fmacro-prefix-map=/builds/wireshark/wireshark/build/= -fmacro-prefix-map=../= -Wno-format-nonliteral -std=c++17 -fdeprecated-macro -ferror-limit 19 -fwrapv -fwrapv-pointer -fstrict-flex-arrays=3 -stack-protector 2 -fstack-clash-protection -fcf-protection=full -fgnuc-version=4.2.1 -fskip-odr-check-in-gmf -fcxx-exceptions -fexceptions -fcolor-diagnostics -analyzer-output=html -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /builds/wireshark/wireshark/sbout/2026-01-29-100357-3623-1 -x c++ /builds/wireshark/wireshark/ui/qt/utils/workspace_state.cpp

/builds/wireshark/wireshark/ui/qt/utils/workspace_state.cpp

→
1/* workspace_state.cpp
2 *
3 * Wireshark - Network traffic analyzer
4 * By Gerald Combs <[email protected]>
5 * Copyright 1998 Gerald Combs
6 *
7 * SPDX-License-Identifier: GPL-2.0-or-later
8 */
9
10#include "config.h"
11
12#include "workspace_state.h"
13
14#include <algorithm>
15#include <QFile>
16#include <QTextStream>
17#include <QDir>
18#include <QRegularExpression>
19#include <QtConcurrent>
20#include <QThreadPool>
21
22#include <wsutil/filesystem.h>
23#include <app/application_flavor.h>
24
25#include <ui/recent.h>
26#include <epan/prefs.h>
27
28WorkspaceState::WorkspaceState(QObject *parent)
29 : QObject(parent)
30{
31}
32
33WorkspaceState::~WorkspaceState()
34{
35}
36
37WorkspaceState* WorkspaceState::instance()
38{
39 // Meyer's Singleton - thread-safe in C++11 and later
40 static WorkspaceState* instance_ = new WorkspaceState();
41 return instance_;
42}
43
44QString WorkspaceState::recentCommonFilePath() const
45{
46 // recent_common is NOT profile-specific (from_profile = false)
47 char *rf_path = get_persconffile_path(
48 RECENT_COMMON_FILE_NAME,
49 false, // from_profile = false
50 application_configuration_environment_prefix()
51 );
52
53 QString path = QString::fromUtf8(rf_path);
54 g_free(rf_path);
55
56 return path;
57}
58
59QString WorkspaceState::recentProfileFilePath() const
60{
61 // recent is profile-specific (from_profile = true)
62 char *rf_path = get_persconffile_path(
63 RECENT_PROFILE_FILE_NAME,
64 true, // from_profile = true
65 application_configuration_environment_prefix()
66 );
67
68 QString path = QString::fromUtf8(rf_path);
69 g_free(rf_path);
70
71 return path;
72}
73
74bool WorkspaceState::parseRecentFile(const QString &filePath,
75 std::function<void(const QString &key, const QString &value)> handler)
76{
77 QFile file(filePath);
78 if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
79 return false;
80 }
81
82 QTextStream in(&file);
83 // Match: key: value (with optional whitespace)
84 static const QRegularExpression keyValueRe(QStringLiteral("^([^:]+):\\s*(.*)$")(QString(QtPrivate::qMakeStringPrivate(u"" "^([^:]+):\\s*(.*)$"
))));
85
86 while (!in.atEnd()) {
87 QString line = in.readLine();
88
89 // Skip empty lines and comments
90 if (line.isEmpty() || line.startsWith('#')) {
91 continue;
92 }
93
94 QRegularExpressionMatch match = keyValueRe.match(line);
95 if (match.hasMatch()) {
96 QString key = match.captured(1).trimmed();
97 QString value = match.captured(2);
98 handler(key, value);
99 }
100 }
101
102 file.close();
103 return true;
104}
105
106bool WorkspaceState::loadCommonState(QString *errorPath, int *errorCode)
107{
108 QString filePath = recentCommonFilePath();
109
110 QFile file(filePath);
111 if (!file.exists()) {
112 // File doesn't exist yet - not an error, just no state to load
113 return true;
114 }
115
116 if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
117 if (errorPath) *errorPath = filePath;
118 if (errorCode) *errorCode = errno(*__errno_location ());
119 return false;
120 }
121 file.close();
122
123 // Clear existing state before loading
124 QList<RecentFileInfo> newFileList;
125
126 bool success = parseRecentFile(filePath, [&newFileList](const QString &key, const QString &value) {
127 if (key == KEY_CAPTURE_FILE) {
128 // Recent files are stored oldest first, newest last
129 // We append to maintain that order
130 if (!value.isEmpty()) {
131 RecentFileInfo info;
132 info.size = 0;
133 info.accessible = false;
134 info.filename = value;
135 newFileList.append(info);
136 }
137 }
138 // Future: handle other keys here
139 // else if (key == KEY_DISPLAY_FILTER) { ... }
140 });
141
142 if (success) {
143 recent_capture_files_.clear();
144 recent_capture_files_.append(newFileList);
145
146 // Queue async status checks for all loaded files
147 for (const RecentFileInfo &info : newFileList) {
148 queueFileStatusCheck(info.filename);
149 }
150
151 emit stateLoaded();
152 }
153
154 return success;
155}
156
157const QList<RecentFileInfo>& WorkspaceState::recentCaptureFiles() const
158{
159 return recent_capture_files_;
160}
161
162QStringList WorkspaceState::recentCaptureFilenames() const
163{
164 QStringList filenames;
165
166 for (const RecentFileInfo &info : recent_capture_files_) {
167 filenames.append(info.filename);
168 }
169 return filenames;
170}
171
172void WorkspaceState::addRecentCaptureFile(const QString &filePath)
173{
174 if (filePath.isEmpty()) {
175 return;
176 }
177
178 // Remove existing entry if present (Qt5-compatible approach)
179 auto matchesPath = [&filePath](const RecentFileInfo &info) {
180#ifdef Q_OS_WIN
181 return info.filename.compare(filePath, Qt::CaseInsensitive) == 0;
182#else
183 return info.filename == filePath;
184#endif
185 };
186 recent_capture_files_.erase(
187 std::remove_if(recent_capture_files_.begin(), recent_capture_files_.end(), matchesPath),
188 recent_capture_files_.end());
189
190 // Add to end (newest last, matching the file format)
191 RecentFileInfo info;
192 info.size = 0;
193 info.accessible = false;
194 info.filename = filePath;
195 recent_capture_files_.append(info);
196
197 // Trim to max size (remove oldest = front of list)
198 int maxRecentFiles = static_cast<int>(prefs.gui_recent_files_count_max);
199 if (recent_capture_files_.size() > maxRecentFiles) {
200 recent_capture_files_ = recent_capture_files_.mid(recent_capture_files_.size() - maxRecentFiles);
201 }
202
203 // Queue async status check for the newly added file
204 queueFileStatusCheck(filePath);
205
206 emit recentCaptureFilesChanged();
207 write_recent(); // Persist immediately
208}
209
210void WorkspaceState::removeRecentCaptureFile(const QString &filePath)
211{
212 // Qt5-compatible approach using std::remove_if
213 auto matchesPath = [&filePath](const RecentFileInfo &info) {
214#ifdef Q_OS_WIN
215 return info.filename.compare(filePath, Qt::CaseInsensitive) == 0;
216#else
217 return info.filename == filePath;
218#endif
219 };
220 auto originalSize = recent_capture_files_.size();
221 auto newEnd = std::remove_if(recent_capture_files_.begin(), recent_capture_files_.end(), matchesPath);
222 recent_capture_files_.erase(newEnd, recent_capture_files_.end());
223
224 if (recent_capture_files_.size() < originalSize) {
225 emit recentCaptureFilesChanged();
226 write_recent(); // Persist immediately
227 }
228}
229
230void WorkspaceState::clearRecentCaptureFiles()
231{
232 if (!recent_capture_files_.isEmpty()) {
233 recent_capture_files_.clear();
234 emit recentCaptureFilesChanged();
235 write_recent(); // Persist immediately
236 }
237}
238
239void WorkspaceState::queueFileStatusCheck(const QString &filename)
240{
241 // Force deep copy for thread safety
242 QString filenameCopy = QString::fromStdU16String(filename.toStdU16String());
243
244 QThreadPool::globalInstance()->start([this, filenameCopy]() {
245 QFileInfo fileInfo(filenameCopy);
246 qint64 size = 0;
247 bool accessible = false;
248
249 if (fileInfo.isFile() && fileInfo.isReadable()) {
1
Assuming the condition is false
→
250 size = fileInfo.size();
251 accessible = true;
252 }
253
254 // Queue the result back to the main thread
255 QMetaObject::invokeMethod(this, [this, filenameCopy, size, accessible]() {
2
←
Calling 'QMetaObject::invokeMethod'
→
256 onFileStatusChecked(filenameCopy, size, accessible);
257 }, Qt::QueuedConnection);
258 });
259}
260
261void WorkspaceState::onFileStatusChecked(const QString &filename, qint64 size, bool accessible)
262{
263 for (RecentFileInfo &info : recent_capture_files_) {
264#ifdef Q_OS_WIN
265 if (info.filename.compare(filename, Qt::CaseInsensitive) == 0) {
266#else
267 if (info.filename == filename) {
268#endif
269 if (info.size != size || info.accessible != accessible) {
270 info.size = size;
271 info.accessible = accessible;
272 emit recentFileStatusChanged(filename);
273 }
274 break;
275 }
276 }
277}
←

/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h

1// Copyright (C) 2022 The Qt Company Ltd.
2// Copyright (C) 2019 Intel Corporation.
3// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
4
5#ifndef QOBJECTDEFS_H
6#define QOBJECTDEFS_H
7
8#if defined(__OBJC__) && !defined(__cplusplus201703L)
9# warning "File built in Objective-C mode (.m), but using Qt requires Objective-C++ (.mm)"
10#endif
11
12#include <QtCore/qnamespace.h>
13#include <QtCore/qobjectdefs_impl.h>
14#include <QtCore/qtmetamacros.h>
15
16QT_BEGIN_NAMESPACE
17
18class QByteArray;
19struct QArrayData;
20
21class QString;
22
23#ifndef QT_NO_META_MACROS
24// macro for onaming members
25#ifdef METHOD
26#undef METHOD
27#endif
28#ifdef SLOT
29#undef SLOT
30#endif
31#ifdef SIGNAL
32#undef SIGNAL
33#endif
34#endif // QT_NO_META_MACROS
35
36Q_CORE_EXPORT__attribute__((visibility("default"))) const char *qFlagLocation(const char *method);
37
38#ifndef QT_NO_META_MACROS
39# define QMETHOD_CODE0 0 // member type codes
40# define QSLOT_CODE1 1
41# define QSIGNAL_CODE2 2
42# define QT_PREFIX_CODE(code, a)"code" "a" QT_STRINGIFY(code)"code" #a
43# define QT_STRINGIFY_METHOD(a)"0" "a" QT_PREFIX_CODE(QMETHOD_CODE, a)"0" "a"
44# define QT_STRINGIFY_SLOT(a)"1" "a" QT_PREFIX_CODE(QSLOT_CODE, a)"1" "a"
45# define QT_STRINGIFY_SIGNAL(a)"2" "a" QT_PREFIX_CODE(QSIGNAL_CODE, a)"2" "a"
46# ifndef QT_NO_DEBUG
47# define QLOCATION"\0" "/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h"
":" "47" "\0" __FILE__"/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h" ":" QT_STRINGIFY(__LINE__)"47"
48# ifndef QT_NO_KEYWORDS
49# define METHOD(a)qFlagLocation("0" "a" "\0" "/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h"
":" "49") qFlagLocation(QT_STRINGIFY_METHOD(a)"0" "a" QLOCATION"\0" "/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h"
":" "49")
50# endif
51# define SLOT(a)qFlagLocation("1" "a" "\0" "/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h"
":" "51") qFlagLocation(QT_STRINGIFY_SLOT(a)"1" "a" QLOCATION"\0" "/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h"
":" "51")
52# define SIGNAL(a)qFlagLocation("2" "a" "\0" "/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h"
":" "52") qFlagLocation(QT_STRINGIFY_SIGNAL(a)"2" "a" QLOCATION"\0" "/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h"
":" "52")
53# else
54# ifndef QT_NO_KEYWORDS
55# define METHOD(a)qFlagLocation("0" "a" "\0" "/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h"
":" "55") QT_STRINGIFY_METHOD(a)"0" "a"
56# endif
57# define SLOT(a)qFlagLocation("1" "a" "\0" "/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h"
":" "57") QT_STRINGIFY_SLOT(a)"1" "a"
58# define SIGNAL(a)qFlagLocation("2" "a" "\0" "/usr/include/x86_64-linux-gnu/qt6/QtCore/qobjectdefs.h"
":" "58") QT_STRINGIFY_SIGNAL(a)"2" "a"
59# endif
60#endif // QT_NO_META_MACROS
61
62#define Q_ARG(type, data)QArgument<type >("type", data) QArgument<type >(#type, data)
63#define Q_RETURN_ARG(type, data)QReturnArgument<type >("type", data) QReturnArgument<type >(#type, data)
64
65class QObject;
66class QMetaMethod;
67class QMetaEnum;
68class QMetaProperty;
69class QMetaClassInfo;
70
71namespace QtPrivate {
72class QMetaTypeInterface;
73}
74
75struct QMethodRawArguments
76{
77 void **arguments;
78};
79
80class Q_CORE_EXPORT__attribute__((visibility("default"))) QGenericArgument
81{
82public:
83 inline QGenericArgument(const char *aName = nullptr, const void *aData = nullptr)
84 : _data(aData), _name(aName) {}
85 inline void *data() const { return const_cast<void *>(_data); }
86 inline const char *name() const { return _name; }
87
88private:
89 const void *_data;
90 const char *_name;
91};
92
93class Q_CORE_EXPORT__attribute__((visibility("default"))) QGenericReturnArgument: public QGenericArgument
94{
95public:
96 inline QGenericReturnArgument(const char *aName = nullptr, void *aData = nullptr)
97 : QGenericArgument(aName, aData)
98 {}
99};
100
101template <class T>
102class QArgument: public QGenericArgument
103{
104public:
105 inline QArgument(const char *aName, const T &aData)
106 : QGenericArgument(aName, static_cast<const void *>(&aData))
107 {}
108};
109template <class T>
110class QArgument<T &>: public QGenericArgument
111{
112public:
113 inline QArgument(const char *aName, T &aData)
114 : QGenericArgument(aName, static_cast<const void *>(&aData))
115 {}
116};
117
118
119template <typename T>
120class QReturnArgument: public QGenericReturnArgument
121{
122public:
123 inline QReturnArgument(const char *aName, T &aData)
124 : QGenericReturnArgument(aName, static_cast<void *>(&aData))
125 {}
126};
127
128struct Q_CORE_EXPORT__attribute__((visibility("default"))) QMetaObject
129{
130 class Connection;
131 const char *className() const;
132 const QMetaObject *superClass() const;
133
134 bool inherits(const QMetaObject *metaObject) const noexcept;
135 QObject *cast(QObject *obj) const
136 { return const_cast<QObject *>(cast(const_cast<const QObject *>(obj))); }
137 const QObject *cast(const QObject *obj) const;
138
139#if !defined(QT_NO_TRANSLATION) || defined(Q_CLANG_QDOC)
140 QString tr(const char *s, const char *c, int n = -1) const;
141#endif // QT_NO_TRANSLATION
142
143 QMetaType metaType() const;
144
145 int methodOffset() const;
146 int enumeratorOffset() const;
147 int propertyOffset() const;
148 int classInfoOffset() const;
149
150 int constructorCount() const;
151 int methodCount() const;
152 int enumeratorCount() const;
153 int propertyCount() const;
154 int classInfoCount() const;
155
156 int indexOfConstructor(const char *constructor) const;
157 int indexOfMethod(const char *method) const;
158 int indexOfSignal(const char *signal) const;
159 int indexOfSlot(const char *slot) const;
160 int indexOfEnumerator(const char *name) const;
161 int indexOfProperty(const char *name) const;
162 int indexOfClassInfo(const char *name) const;
163
164 QMetaMethod constructor(int index) const;
165 QMetaMethod method(int index) const;
166 QMetaEnum enumerator(int index) const;
167 QMetaProperty property(int index) const;
168 QMetaClassInfo classInfo(int index) const;
169 QMetaProperty userProperty() const;
170
171 static bool checkConnectArgs(const char *signal, const char *method);
172 static bool checkConnectArgs(const QMetaMethod &signal,
173 const QMetaMethod &method);
174 static QByteArray normalizedSignature(const char *method);
175 static QByteArray normalizedType(const char *type);
176
177 // internal index-based connect
178 static Connection connect(const QObject *sender, int signal_index,
179 const QObject *receiver, int method_index,
180 int type = 0, int *types = nullptr);
181 // internal index-based disconnect
182 static bool disconnect(const QObject *sender, int signal_index,
183 const QObject *receiver, int method_index);
184 static bool disconnectOne(const QObject *sender, int signal_index,
185 const QObject *receiver, int method_index);
186 // internal slot-name based connect
187 static void connectSlotsByName(QObject *o);
188
189 // internal index-based signal activation
190 static void activate(QObject *sender, int signal_index, void **argv);
191 static void activate(QObject *sender, const QMetaObject *, int local_signal_index, void **argv);
192 static void activate(QObject *sender, int signal_offset, int local_signal_index, void **argv);
193
194 static bool invokeMethod(QObject *obj, const char *member,
195 Qt::ConnectionType,
196 QGenericReturnArgument ret,
197 QGenericArgument val0 = QGenericArgument(nullptr),
198 QGenericArgument val1 = QGenericArgument(),
199 QGenericArgument val2 = QGenericArgument(),
200 QGenericArgument val3 = QGenericArgument(),
201 QGenericArgument val4 = QGenericArgument(),
202 QGenericArgument val5 = QGenericArgument(),
203 QGenericArgument val6 = QGenericArgument(),
204 QGenericArgument val7 = QGenericArgument(),
205 QGenericArgument val8 = QGenericArgument(),
206 QGenericArgument val9 = QGenericArgument());
207
208 static inline bool invokeMethod(QObject *obj, const char *member,
209 QGenericReturnArgument ret,
210 QGenericArgument val0 = QGenericArgument(nullptr),
211 QGenericArgument val1 = QGenericArgument(),
212 QGenericArgument val2 = QGenericArgument(),
213 QGenericArgument val3 = QGenericArgument(),
214 QGenericArgument val4 = QGenericArgument(),
215 QGenericArgument val5 = QGenericArgument(),
216 QGenericArgument val6 = QGenericArgument(),
217 QGenericArgument val7 = QGenericArgument(),
218 QGenericArgument val8 = QGenericArgument(),
219 QGenericArgument val9 = QGenericArgument())
220 {
221 return invokeMethod(obj, member, Qt::AutoConnection, ret, val0, val1, val2, val3,
222 val4, val5, val6, val7, val8, val9);
223 }
224
225 static inline bool invokeMethod(QObject *obj, const char *member,
226 Qt::ConnectionType type,
227 QGenericArgument val0 = QGenericArgument(nullptr),
228 QGenericArgument val1 = QGenericArgument(),
229 QGenericArgument val2 = QGenericArgument(),
230 QGenericArgument val3 = QGenericArgument(),
231 QGenericArgument val4 = QGenericArgument(),
232 QGenericArgument val5 = QGenericArgument(),
233 QGenericArgument val6 = QGenericArgument(),
234 QGenericArgument val7 = QGenericArgument(),
235 QGenericArgument val8 = QGenericArgument(),
236 QGenericArgument val9 = QGenericArgument())
237 {
238 return invokeMethod(obj, member, type, QGenericReturnArgument(), val0, val1, val2,
239 val3, val4, val5, val6, val7, val8, val9);
240 }
241
242 static inline bool invokeMethod(QObject *obj, const char *member,
243 QGenericArgument val0 = QGenericArgument(nullptr),
244 QGenericArgument val1 = QGenericArgument(),
245 QGenericArgument val2 = QGenericArgument(),
246 QGenericArgument val3 = QGenericArgument(),
247 QGenericArgument val4 = QGenericArgument(),
248 QGenericArgument val5 = QGenericArgument(),
249 QGenericArgument val6 = QGenericArgument(),
250 QGenericArgument val7 = QGenericArgument(),
251 QGenericArgument val8 = QGenericArgument(),
252 QGenericArgument val9 = QGenericArgument())
253 {
254 return invokeMethod(obj, member, Qt::AutoConnection, QGenericReturnArgument(), val0,
255 val1, val2, val3, val4, val5, val6, val7, val8, val9);
256 }
257
258#ifdef Q_CLANG_QDOC
259 template<typename Functor, typename FunctorReturnType>
260 static bool invokeMethod(QObject *context, Functor function, Qt::ConnectionType type = Qt::AutoConnection, FunctorReturnType *ret = nullptr);
261 template<typename Functor, typename FunctorReturnType>
262 static bool invokeMethod(QObject *context, Functor function, FunctorReturnType *ret);
263#else
264
265 // invokeMethod() for member function pointer
266 template <typename Func>
267 static typename std::enable_if<QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
268 && !std::is_convertible<Func, const char*>::value
269 && QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
270 invokeMethod(typename QtPrivate::FunctionPointer<Func>::Object *object,
271 Func function,
272 Qt::ConnectionType type = Qt::AutoConnection,
273 typename QtPrivate::FunctionPointer<Func>::ReturnType *ret = nullptr)
274 {
275 return invokeMethodImpl(object, new QtPrivate::QSlotObjectWithNoArgs<Func>(function), type, ret);
276 }
277
278 template <typename Func>
279 static typename std::enable_if<QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
280 && !std::is_convertible<Func, const char*>::value
281 && QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
282 invokeMethod(typename QtPrivate::FunctionPointer<Func>::Object *object,
283 Func function,
284 typename QtPrivate::FunctionPointer<Func>::ReturnType *ret)
285 {
286 return invokeMethodImpl(object, new QtPrivate::QSlotObjectWithNoArgs<Func>(function), Qt::AutoConnection, ret);
287 }
288
289 // invokeMethod() for function pointer (not member)
290 template <typename Func>
291 static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
292 && !std::is_convertible<Func, const char*>::value
293 && QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
294 invokeMethod(QObject *context, Func function,
295 Qt::ConnectionType type = Qt::AutoConnection,
296 typename QtPrivate::FunctionPointer<Func>::ReturnType *ret = nullptr)
297 {
298 return invokeMethodImpl(context, new QtPrivate::QFunctorSlotObjectWithNoArgsImplicitReturn<Func>(function), type, ret);
299 }
300
301 template <typename Func>
302 static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
303 && !std::is_convertible<Func, const char*>::value
304 && QtPrivate::FunctionPointer<Func>::ArgumentCount == 0, bool>::type
305 invokeMethod(QObject *context, Func function,
306 typename QtPrivate::FunctionPointer<Func>::ReturnType *ret)
307 {
308 return invokeMethodImpl(context, new QtPrivate::QFunctorSlotObjectWithNoArgsImplicitReturn<Func>(function), Qt::AutoConnection, ret);
309 }
310
311 // invokeMethod() for Functor
312 template <typename Func>
313 static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
314 && QtPrivate::FunctionPointer<Func>::ArgumentCount == -1
315 && !std::is_convertible<Func, const char*>::value, bool>::type
316 invokeMethod(QObject *context, Func function,
317 Qt::ConnectionType type = Qt::AutoConnection, decltype(function()) *ret = nullptr)
318 {
319 return invokeMethodImpl(context,
4
←
Potential memory leak
320 new QtPrivate::QFunctorSlotObjectWithNoArgs<Func, decltype(function())>(std::move(function)),
3
←
Memory is allocated
→
321 type,
322 ret);
323 }
324
325 template <typename Func>
326 static typename std::enable_if<!QtPrivate::FunctionPointer<Func>::IsPointerToMemberFunction
327 && QtPrivate::FunctionPointer<Func>::ArgumentCount == -1
328 && !std::is_convertible<Func, const char*>::value, bool>::type
329 invokeMethod(QObject *context, Func function, decltype(function()) *ret)
330 {
331 return invokeMethodImpl(context,
332 new QtPrivate::QFunctorSlotObjectWithNoArgs<Func, decltype(function())>(std::move(function)),
333 Qt::AutoConnection,
334 ret);
335 }
336
337#endif
338
339 QObject *newInstance(QGenericArgument val0 = QGenericArgument(nullptr),
340 QGenericArgument val1 = QGenericArgument(),
341 QGenericArgument val2 = QGenericArgument(),
342 QGenericArgument val3 = QGenericArgument(),
343 QGenericArgument val4 = QGenericArgument(),
344 QGenericArgument val5 = QGenericArgument(),
345 QGenericArgument val6 = QGenericArgument(),
346 QGenericArgument val7 = QGenericArgument(),
347 QGenericArgument val8 = QGenericArgument(),
348 QGenericArgument val9 = QGenericArgument()) const;
349
350 enum Call {
351 InvokeMetaMethod,
352 ReadProperty,
353 WriteProperty,
354 ResetProperty,
355 CreateInstance,
356 IndexOfMethod,
357 RegisterPropertyMetaType,
358 RegisterMethodArgumentMetaType,
359 BindableProperty,
360 CustomCall
361 };
362
363 int static_metacall(Call, int, void **) const;
364 static int metacall(QObject *, Call, int, void **);
365
366 template <const QMetaObject &MO> static constexpr const QMetaObject *staticMetaObject()
367 {
368 return &MO;
369 }
370
371 struct SuperData {
372 using Getter = const QMetaObject *(*)();
373 const QMetaObject *direct;
374 SuperData() = default;
375 constexpr SuperData(std::nullptr_t) : direct(nullptr) {}
376 constexpr SuperData(const QMetaObject *mo) : direct(mo) {}
377
378 constexpr const QMetaObject *operator->() const { return operator const QMetaObject *(); }
379
380#ifdef QT_NO_DATA_RELOCATION
381 Getter indirect = nullptr;
382 constexpr SuperData(Getter g) : direct(nullptr), indirect(g) {}
383 constexpr operator const QMetaObject *() const
384 { return indirect ? indirect() : direct; }
385 template <const QMetaObject &MO> static constexpr SuperData link()
386 { return SuperData(QMetaObject::staticMetaObject<MO>); }
387#else
388 constexpr SuperData(Getter g) : direct(g()) {}
389 constexpr operator const QMetaObject *() const
390 { return direct; }
391 template <const QMetaObject &MO> static constexpr SuperData link()
392 { return SuperData(QMetaObject::staticMetaObject<MO>()); }
393#endif
394 };
395
396 struct Data { // private data
397 SuperData superdata;
398 const uint *stringdata;
399 const uint *data;
400 typedef void (*StaticMetacallFunction)(QObject *, QMetaObject::Call, int, void **);
401 StaticMetacallFunction static_metacall;
402 const SuperData *relatedMetaObjects;
403 const QtPrivate::QMetaTypeInterface *const *metaTypes;
404 void *extradata; //reserved for future use
405 } d;
406
407private:
408 static bool invokeMethodImpl(QObject *object, QtPrivate::QSlotObjectBase *slot, Qt::ConnectionType type, void *ret);
409 friend class QTimer;
410};
411
412class Q_CORE_EXPORT__attribute__((visibility("default"))) QMetaObject::Connection {
413 void *d_ptr; //QObjectPrivate::Connection*
414 explicit Connection(void *data) : d_ptr(data) { }
415 friend class QObject;
416 friend class QObjectPrivate;
417 friend struct QMetaObject;
418 bool isConnected_helper() const;
419public:
420 ~Connection();
421 Connection();
422 Connection(const Connection &other);
423 Connection &operator=(const Connection &other);
424#ifdef Q_QDOC
425 operator bool() const;
426#else
427 // still using the restricted bool trick here, in order to support
428 // code using copy-init (e.g. `bool ok = connect(...)`)
429 typedef void *Connection::*RestrictedBool;
430 operator RestrictedBool() const { return d_ptr && isConnected_helper() ? &Connection::d_ptr : nullptr; }
431#endif
432
433 Connection(Connection &&other) noexcept : d_ptr(qExchange(other.d_ptr, nullptr)) {}
434 QT_MOVE_ASSIGNMENT_OPERATOR_IMPL_VIA_PURE_SWAP(Connection)Connection &operator=(Connection &&other) noexcept
{ swap(other); return *this; }
435 void swap(Connection &other) noexcept { qt_ptr_swap(d_ptr, other.d_ptr); }
436};
437
438inline void swap(QMetaObject::Connection &lhs, QMetaObject::Connection &rhs) noexcept
439{
440 lhs.swap(rhs);
441}
442
443inline const QMetaObject *QMetaObject::superClass() const
444{ return d.superdata; }
445
446namespace QtPrivate {
447 /* Trait that tells is a the Object has a Q_OBJECT macro */
448 template <typename Object> struct HasQ_OBJECT_Macro {
449 template <typename T>
450 static char test(int (T::*)(QMetaObject::Call, int, void **));
451 static int test(int (Object::*)(QMetaObject::Call, int, void **));
452 enum { Value = sizeof(test(&Object::qt_metacall)) == sizeof(int) };
453 };
454}
455
456QT_END_NAMESPACE
457
458#endif // QOBJECTDEFS_H