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qv8engine_p.h #2

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1 /**************************************************************************** -

2 ** -

3 ** Copyright (C) 2016 The Qt Company Ltd. -

4 ** Contact: https://www.qt.io/licensing/ -

5 ** -

6 ** This file is part of the QtQml module of the Qt Toolkit. -

7 ** -

8 ** $QT_BEGIN_LICENSE:LGPL$ -

9 ** Commercial License Usage -

10 ** Licensees holding valid commercial Qt licenses may use this file in -

11 ** accordance with the commercial license agreement provided with the -

12 ** Software or, alternatively, in accordance with the terms contained in -

13 ** a written agreement between you and The Qt Company. For licensing terms -

14 ** and conditions see https://www.qt.io/terms-conditions. For further -

15 ** information use the contact form at https://www.qt.io/contact-us. -

16 ** -

17 ** GNU Lesser General Public License Usage -

18 ** Alternatively, this file may be used under the terms of the GNU Lesser -

19 ** General Public License version 3 as published by the Free Software -

20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the -

21 ** packaging of this file. Please review the following information to -

22 ** ensure the GNU Lesser General Public License version 3 requirements -

23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -

24 ** -

25 ** GNU General Public License Usage -

26 ** Alternatively, this file may be used under the terms of the GNU -

27 ** General Public License version 2.0 or (at your option) the GNU General -

28 ** Public license version 3 or any later version approved by the KDE Free -

29 ** Qt Foundation. The licenses are as published by the Free Software -

30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -

31 ** included in the packaging of this file. Please review the following -

32 ** information to ensure the GNU General Public License requirements will -

33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and -

34 ** https://www.gnu.org/licenses/gpl-3.0.html. -

35 ** -

36 ** $QT_END_LICENSE$ -

37 ** -

38 ****************************************************************************/ -

39 -

40 #ifndef QQMLV8ENGINE_P_H -

41 #define QQMLV8ENGINE_P_H -

42 -

43 // -

44 // W A R N I N G -

45 // ------------- -

46 // -

47 // This file is not part of the Qt API. It exists purely as an -

48 // implementation detail. This header file may change from version to -

49 // version without notice, or even be removed. -

50 // -

51 // We mean it. -

52 // -

53 -

54 #include <QtCore/qglobal.h> -

55 #include <QtCore/qvariant.h> -

56 #include <QtCore/qset.h> -

57 #include <QtCore/qmutex.h> -

58 #include <QtCore/qstack.h> -

59 #include <QtCore/qstringlist.h> -

60 #include <QtCore/QElapsedTimer> -

61 #include <QtCore/QThreadStorage> -

62 -

63 #include <QtQml/qjsengine.h> -

64 #include "private/qintrusivelist_p.h" -

65 -

66 -

67 #include <private/qv4value_p.h> -

68 #include <private/qv4identifier_p.h> -

69 #include <private/qv4context_p.h> -

70 #include <private/qv4stackframe_p.h> -

71 #include <private/qqmldelayedcallqueue_p.h> -

72 -

73 QT_BEGIN_NAMESPACE -

74 -

75 namespace QV4 { -

76 struct ArrayObject; -

77 struct ExecutionEngine; -

78 struct QObjectMethod; -

79 } -

80 -

81 #define V4_DEFINE_EXTENSION(dataclass, datafunction) \ -

82 static inline dataclass *datafunction(QV4::ExecutionEngine *engine) \ -

83 { \ -

84 static int extensionId = -1; \ -

85 if (extensionId == -1) { \ -

86 QV8Engine::registrationMutex()->lock(); \ -

87 if (extensionId == -1) \ -

88 extensionId = QV8Engine::registerExtension(); \ -

89 QV8Engine::registrationMutex()->unlock(); \ -

90 } \ -

91 dataclass *rv = (dataclass *)engine->v8Engine->extensionData(extensionId); \ -

92 if (!rv) { \ -

93 rv = new dataclass(engine); \ -

94 engine->v8Engine->setExtensionData(extensionId, rv); \ -

95 } \ -

96 return rv; \ -

97 } \ -

98 -

99 // Used to allow a QObject method take and return raw V4 handles without having to expose -

100 // 48 in the public API. -

101 // Use like this: -

102 // class MyClass : public QObject { -

103 // Q_OBJECT -

104 // ... -

105 // Q_INVOKABLE void myMethod(QQmlV4Function*); -

106 // }; -

107 // The QQmlV8Function - and consequently the arguments and return value - only remains -

108 // valid during the call. If the return value isn't set within myMethod(), the will return -

109 // undefined. -

110 -

111 class QQmlV4Function -

112 { -

113 public: -

int length() const { return callData->argc(); }

executed 16766 times by 29 tests: return callData->argc();

Executed by:

tst_examples
tst_qmlcachegen
tst_qqmlcomponent
tst_qqmlcontext
tst_qqmlecmascript
tst_qqmlenginedebugservice
tst_qqmlincubator
tst_qqmlinfo
tst_qqmllistmodel
tst_qqmllistmodelworkerscript
tst_qqmlproperty
tst_qqmlqt
tst_qqmlxmlhttprequest
tst_qquickanimationcontroller
tst_qquickbehaviors
tst_qquickdrag
tst_qquickdroparea
tst_qquickgridview
tst_qquickitem
tst_qquickitem2
tst_qquicklayouts
tst_qquicklistview
tst_qquickloader
tst_qquickpathview
tst_qquickpositioners
...

16766

QV4::ReturnedValue operator[](int idx) const { return (idx < callData->argc() ? callData->args[idx].asReturnedValue() : QV4::Encode::undefined()); }

executed 17526 times by 30 tests: return (idx < callData->argc() ? callData->args[idx].asReturnedValue() : QV4::Encode::undefined());

Executed by:

tst_examples
tst_qmlcachegen
tst_qqmlcomponent
tst_qqmlcontext
tst_qqmlecmascript
tst_qqmlenginedebugservice
tst_qqmlincubator
tst_qqmlinfo
tst_qqmllistmodel
tst_qqmllistmodelworkerscript
tst_qqmlproperty
tst_qqmlqt
tst_qqmlsqldatabase
tst_qqmlxmlhttprequest
tst_qquickanimationcontroller
tst_qquickbehaviors
tst_qquickdrag
tst_qquickdroparea
tst_qquickgridview
tst_qquickitem
tst_qquickitem2
tst_qquicklayouts
tst_qquicklistview
tst_qquickloader
tst_qquickpathview
...

17526

void setReturnValue(QV4::ReturnedValue rv) { *retVal = rv; }

executed 6340 times by 21 tests: end of block

Executed by:

tst_examples
tst_qqmlcomponent
tst_qqmlcontext
tst_qqmlecmascript
tst_qqmlenginedebugservice
tst_qqmlincubator
tst_qqmlinfo
tst_qqmlproperty
tst_qqmlqt
tst_qqmlsqldatabase
tst_qquickanimationcontroller
tst_qquickbehaviors
tst_qquickdroparea
tst_qquickitem
tst_qquickitem2
tst_qquicklayouts
tst_qquickloader
tst_qquickpathview
tst_qquickpositioners
tst_qquicktextinput
tst_qquickvisualdatamodel

6340

QV4::ExecutionEngine *v4engine() const { return e; }

executed 15396 times by 30 tests: return e;

Executed by:

tst_examples
tst_qmlcachegen
tst_qqmlcomponent
tst_qqmlcontext
tst_qqmlecmascript
tst_qqmlenginedebugservice
tst_qqmlincubator
tst_qqmlinfo
tst_qqmllistmodel
tst_qqmllistmodelworkerscript
tst_qqmlproperty
tst_qqmlqt
tst_qqmlsqldatabase
tst_qqmlxmlhttprequest
tst_qquickanimationcontroller
tst_qquickbehaviors
tst_qquickdrag
tst_qquickdroparea
tst_qquickgridview
tst_qquickitem
tst_qquickitem2
tst_qquicklayouts
tst_qquicklistview
tst_qquickloader
tst_qquickpathview
...

15396

118 private: -

119 friend struct QV4::QObjectMethod; -

120 QQmlV4Function(); -

121 QQmlV4Function(const QQmlV4Function &); -

122 QQmlV4Function &operator=(const QQmlV4Function &); -

123 -

124 QQmlV4Function(QV4::CallData *callData, QV4::Value *retVal, QV4::ExecutionEngine *e) -

125 : callData(callData), retVal(retVal), e(e) -

126 { -

127 callData->thisObject = QV4::Encode::undefined(); -

}

executed 12294 times by 31 tests: end of block

Executed by:

tst_examples
tst_qjsengine
tst_qmlcachegen
tst_qqmlcomponent
tst_qqmlcontext
tst_qqmlecmascript
tst_qqmlenginedebugservice
tst_qqmlincubator
tst_qqmlinfo
tst_qqmllistmodel
tst_qqmllistmodelworkerscript
tst_qqmlproperty
tst_qqmlqt
tst_qqmlsqldatabase
tst_qqmlxmlhttprequest
tst_qquickanimationcontroller
tst_qquickbehaviors
tst_qquickdrag
tst_qquickdroparea
tst_qquickgridview
tst_qquickitem
tst_qquickitem2
tst_qquicklayouts
tst_qquicklistview
tst_qquickloader
...

12294

129 -

130 QV4::CallData *callData; -

131 QV4::Value *retVal; -

132 QV4::ExecutionEngine *e; -

133 }; -

134 -

135 class Q_QML_PRIVATE_EXPORT QQmlV4Handle -

136 { -

137 public: -

QQmlV4Handle() : d(QV4::Encode::undefined()) {}

executed 30154 times by 13 tests: end of block

Executed by:

tst_examples
tst_qmlcachegen
tst_qqmllistmodel
tst_qqmllistmodelworkerscript
tst_qqmltranslation
tst_qqmlxmlhttprequest
tst_qquickanimationcontroller
tst_qquickgridview
tst_qquicklayouts
tst_qquicklistview
tst_qquickrepeater
tst_qquickvisualdatamodel
tst_quicktestmainwithsetup

30154

explicit QQmlV4Handle(const QV4::Value &v) : d(v.asReturnedValue()) {}

executed 31365 times by 16 tests: end of block

Executed by:

tst_examples
tst_qmlcachegen
tst_qqmlecmascript
tst_qqmllistmodel
tst_qqmllistmodelworkerscript
tst_qqmltranslation
tst_qqmlxmlhttprequest
tst_qquickanimationcontroller
tst_qquickcustomaffector
tst_qquickgridview
tst_qquicklayouts
tst_qquicklistview
tst_qquickrepeater
tst_qquickvisualdatamodel
tst_qquickworkerscript
tst_quicktestmainwithsetup

31365

explicit QQmlV4Handle(QV4::ReturnedValue v) : d(v) {}

executed 1542 times by 4 tests: end of block

Executed by:

tst_qqmllistmodel
tst_qqmllistmodelworkerscript
tst_qquickcustomaffector
tst_qquickvisualdatamodel

1542

141 -

operator QV4::ReturnedValue() const { return d; }

executed 31850 times by 17 tests: return d;

Executed by:

tst_examples
tst_qmlcachegen
tst_qqmlbinding
tst_qqmllistmodel
tst_qqmllistmodelworkerscript
tst_qqmlqt
tst_qqmltranslation
tst_qqmlvaluetypeproviders
tst_qqmlxmlhttprequest
tst_qquickanimationcontroller
tst_qquickcustomaffector
tst_qquickgridview
tst_qquicklayouts
tst_qquicklistview
tst_qquickrepeater
tst_qquickvisualdatamodel
tst_quicktestmainwithsetup

31850

143 -

144 private: -

145 quint64 d; -

146 }; -

147 -

148 class QObject; -

149 class QQmlEngine; -

150 class QNetworkAccessManager; -

151 class QQmlContextData; -

152 -

153 class Q_QML_PRIVATE_EXPORT QV8Engine -

154 { -

155 friend class QJSEngine; -

156 public: -

157 // static QJSEngine* get(QV8Engine* d) { Q_ASSERT(d); return d->q; } -

static QV4::ExecutionEngine *getV4(QV8Engine *d) { return d->m_v4Engine; }

executed 3488 times by 5 tests: return d->m_v4Engine;

Executed by:

tst_examples
tst_qmlcachegen
tst_qqmlecmascript
tst_qqmllistmodelworkerscript
tst_qquickworkerscript

3488

159 -

160 QV8Engine(QV4::ExecutionEngine *v4); -

161 virtual ~QV8Engine(); -

162 -

163 // This enum should be in sync with QQmlEngine::ObjectOwnership -

164 enum ObjectOwnership { CppOwnership, JavaScriptOwnership }; -

165 -

166 struct Deletable { -

167 virtual ~Deletable() {} -

168 }; -

169 -

170 void initQmlGlobalObject(); -

171 void setEngine(QQmlEngine *engine); -

QQmlEngine *engine() { return m_engine; }

executed 10208149 times by 131 tests: return m_engine;

Executed by:

tst_bindingdependencyapi
tst_drawingmodes
tst_examples
tst_flickableinterop
tst_multipointtoucharea_interop
tst_qjsengine
tst_qjsonbinding
tst_qmlcachegen
tst_qmldiskcache
tst_qqmlapplicationengine
tst_qqmlbinding
tst_qqmlcomponent
tst_qqmlconnections
tst_qqmlconsole
tst_qqmlcontext
tst_qqmldebugjs
tst_qqmlecmascript
tst_qqmlenginedebugservice
tst_qqmlexpression
tst_qqmlincubator
tst_qqmlinfo
tst_qqmlinstantiator
tst_qqmlitemmodels
tst_qqmllistmodel
tst_qqmllistmodelworkerscript
...

10208149

QQmlDelayedCallQueue *delayedCallQueue() { return &m_delayedCallQueue; }

never executed: return &m_delayedCallQueue;

0

174 -

175 #if QT_CONFIG(qml_xml_http_request) -

void *xmlHttpRequestData() const { return m_xmlHttpRequestData; }

never executed: return m_xmlHttpRequestData;

0

177 #endif -

178 -

179 void freezeObject(const QV4::Value &value); -

180 -

181 #if QT_CONFIG(qml_network) -

182 // Return the network access manager for this engine. By default this returns the network -

183 // access manager of the QQmlEngine. It is overridden in the case of a threaded v8 -

184 // instance (like in WorkerScript). -

185 virtual QNetworkAccessManager *networkAccessManager(); -

186 #endif -

187 -

188 // Return the list of illegal id names (the names of the properties on the global object) -

189 const QSet<QString> &illegalNames() const; -

190 -

191 static QMutex *registrationMutex(); -

192 static int registerExtension(); -

193 -

194 inline Deletable *extensionData(int) const; -

195 void setExtensionData(int, Deletable *); -

196 -

197 public: -

198 // used for console.time(), console.timeEnd() -

199 void startTimer(const QString &timerName); -

200 qint64 stopTimer(const QString &timerName, bool *wasRunning); -

201 -

202 // used for console.count() -

203 int consoleCountHelper(const QString &file, quint16 line, quint16 column); -

204 -

205 protected: -

206 QQmlEngine *m_engine; -

207 QQmlDelayedCallQueue m_delayedCallQueue; -

208 -

209 QV4::ExecutionEngine *m_v4Engine; -

210 -

211 #if QT_CONFIG(qml_xml_http_request) -

212 void *m_xmlHttpRequestData; -

213 #endif -

214 -

215 QVector<Deletable *> m_extensionData; -

216 -

217 QSet<QString> m_illegalNames; -

218 -

219 QElapsedTimer m_time; -

220 QHash<QString, qint64> m_startedTimers; -

221 -

222 QHash<QString, quint32> m_consoleCount; -

223 -

224 void initializeGlobal(); -

225 -

226 private: -

227 Q_DISABLE_COPY(QV8Engine) -

228 }; -

229 -

230 inline QV8Engine::Deletable *QV8Engine::extensionData(int index) const -

231 { -

if (index < m_extensionData.count())

index < m_exte...onData.count()	Description
TRUE	evaluated 4382 times by 7 tests Evaluated by: tst_examples tst_qqmlcomponent tst_qqmllocale tst_qqmlsqldatabase tst_qqmlvaluetypes tst_qquickcustomaffector tst_qquickvisualdatamodel
FALSE	evaluated 28 times by 9 tests Evaluated by: tst_examples tst_qqmlcomponent tst_qqmlecmascript tst_qqmlincubator tst_qqmllocale tst_qqmlsqldatabase tst_qqmlvaluetypes tst_qquickcustomaffector tst_qquickvisualdatamodel

28-4382

return m_extensionData[index];

executed 4382 times by 7 tests: return m_extensionData[index];

Executed by:

tst_examples
tst_qqmlcomponent
tst_qqmllocale
tst_qqmlsqldatabase
tst_qqmlvaluetypes
tst_qquickcustomaffector
tst_qquickvisualdatamodel

4382

234 else -

return nullptr;

executed 28 times by 9 tests: return nullptr;

Executed by:

tst_examples
tst_qqmlcomponent
tst_qqmlecmascript
tst_qqmlincubator
tst_qqmllocale
tst_qqmlsqldatabase
tst_qqmlvaluetypes
tst_qquickcustomaffector
tst_qquickvisualdatamodel

28

236 } -

237 -

238 -

239 QT_END_NAMESPACE -

240 -

Q_DECLARE_METATYPE(QQmlV4Handle)

never executed: return id;

never executed: return newId;

const int id =....loadAcquire()	Description
TRUE	never evaluated
FALSE	never evaluated

0

242 -

243 #endif // QQMLV8ENGINE_P_H -

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