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qqmldelayedcallqueue.cpp

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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-
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15** information use the contact form at https://www.qt.io/contact-us.-
16**-
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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-
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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-
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35**-
36** $QT_END_LICENSE$-
37**-
38****************************************************************************/-
39-
40#include "qqmldelayedcallqueue_p.h"-
41#include <private/qv8engine_p.h>-
42#include <private/qqmlengine_p.h>-
43#include <private/qqmljavascriptexpression_p.h>-
44#include <private/qv4value_p.h>-
45#include <private/qv4jscall_p.h>-
46#include <private/qv4qobjectwrapper_p.h>-
47-
48#include <QQmlError>-
49-
50QT_BEGIN_NAMESPACE-
51-
52//-
53// struct QQmlDelayedCallQueue::DelayedFunctionCall-
54//-
55-
56void QQmlDelayedCallQueue::DelayedFunctionCall::execute(QV4::ExecutionEngine *engine) const-
57{-
58 if (!m_guarded ||
!m_guardedDescription
TRUEnever evaluated
FALSEevaluated 94 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
0-94
59 (!m_objectGuard.isNull() &&
!m_objectGuard.isNull()Description
TRUEevaluated 82 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEevaluated 12 times by 1 test
Evaluated by:
  • tst_qqmlqt
12-82
60 !QQmlData::wasDeleted(m_objectGuard) &&
!QQmlData::was...m_objectGuard)Description
TRUEevaluated 82 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEnever evaluated
0-82
61 QQmlData::get(m_objectGuard) &&
QQmlData::get(m_objectGuard)Description
TRUEevaluated 82 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEnever evaluated
0-82
62 !QQmlData::get(m_objectGuard)->isQueuedForDeletion)) {
!QQmlData::get...uedForDeletionDescription
TRUEevaluated 82 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEnever evaluated
0-82
63-
64 QV4::Scope scope(engine);-
65-
66 QV4::ArrayObject *array = m_args.as<QV4::ArrayObject>();-
67 const QV4::FunctionObject *callback = m_function.as<QV4::FunctionObject>();-
68 Q_ASSERT(callback);-
69 const int argCount = array ? array->getLength() : 0;
arrayDescription
TRUEevaluated 6 times by 1 test
Evaluated by:
  • tst_qqmlqt
FALSEevaluated 76 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
6-76
70 QV4::JSCallData jsCallData(scope, argCount);-
71 *jsCallData->thisObject = QV4::Encode::undefined();-
72-
73 for (int i = 0; i < argCount; i++) {
i < argCountDescription
TRUEevaluated 10 times by 1 test
Evaluated by:
  • tst_qqmlqt
FALSEevaluated 82 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
10-82
74 jsCallData->args[i] = array->get(i);-
75 }
executed 10 times by 1 test: end of block
Executed by:
  • tst_qqmlqt
10
76-
77 callback->call(jsCallData);-
78-
79 if (scope.engine->hasException) {
scope.engine->hasExceptionDescription
TRUEevaluated 2 times by 1 test
Evaluated by:
  • tst_qqmlqt
FALSEevaluated 80 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
2-80
80 QQmlError error = scope.engine->catchExceptionAsQmlError();-
81 error.setDescription(error.description() + QLatin1String(" (exception occurred during delayed function evaluation)"));-
82 QQmlEnginePrivate::warning(QQmlEnginePrivate::get(scope.engine->qmlEngine()), error);-
83 }
executed 2 times by 1 test: end of block
Executed by:
  • tst_qqmlqt
2
84 }
executed 82 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
82
85}
executed 94 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
94
86-
87//-
88// class QQmlDelayedCallQueue-
89//-
90-
91QQmlDelayedCallQueue::QQmlDelayedCallQueue()-
92 : QObject(nullptr), m_engine(nullptr), m_callbackOutstanding(false)-
93{-
94}
executed 11448 times by 151 tests: end of block
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_parserstress
  • tst_qjsengine
  • tst_qjsonbinding
  • tst_qjsvalue
  • tst_qjsvalueiterator
  • tst_qmlcachegen
  • tst_qmldiskcache
  • tst_qqmlapplicationengine
  • tst_qqmlbinding
  • tst_qqmlcomponent
  • tst_qqmlconnections
  • tst_qqmlconsole
  • tst_qqmlcontext
  • tst_qqmldebugclient
  • tst_qqmldebugjs
  • tst_qqmldebuglocal
  • tst_qqmldebugservice
  • tst_qqmlecmascript
  • tst_qqmlenginecleanup
  • tst_qqmlenginedebugservice
  • ...
11448
95-
96QQmlDelayedCallQueue::~QQmlDelayedCallQueue()-
97{-
98}-
99-
100void QQmlDelayedCallQueue::init(QV4::ExecutionEngine* engine)-
101{-
102 m_engine = engine;-
103-
104 const QMetaObject &metaObject = QQmlDelayedCallQueue::staticMetaObject;-
105 int methodIndex = metaObject.indexOfSlot("ticked()");-
106 m_tickedMethod = metaObject.method(methodIndex);-
107}
executed 11448 times by 151 tests: end of block
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_parserstress
  • tst_qjsengine
  • tst_qjsonbinding
  • tst_qjsvalue
  • tst_qjsvalueiterator
  • tst_qmlcachegen
  • tst_qmldiskcache
  • tst_qqmlapplicationengine
  • tst_qqmlbinding
  • tst_qqmlcomponent
  • tst_qqmlconnections
  • tst_qqmlconsole
  • tst_qqmlcontext
  • tst_qqmldebugclient
  • tst_qqmldebugjs
  • tst_qqmldebuglocal
  • tst_qqmldebugservice
  • tst_qqmlecmascript
  • tst_qqmlenginecleanup
  • tst_qqmlenginedebugservice
  • ...
11448
108-
109QV4::ReturnedValue QQmlDelayedCallQueue::addUniquelyAndExecuteLater(const QV4::FunctionObject *b, const QV4::Value *, const QV4::Value *argv, int argc)-
110{-
111 QV4::Scope scope(b);-
112 if (argc == 0)
argc == 0Description
TRUEnever evaluated
FALSEevaluated 454 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
0-454
113 THROW_GENERIC_ERROR("Qt.callLater: no arguments given");
never executed: return scope.engine->throwError(QString::fromUtf8("Qt.callLater: no arguments given"));
0
114-
115 const QV4::FunctionObject *func = argv[0].as<QV4::FunctionObject>();-
116-
117 if (!func)
!funcDescription
TRUEnever evaluated
FALSEevaluated 454 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
0-454
118 THROW_GENERIC_ERROR("Qt.callLater: first argument not a function or signal");
never executed: return scope.engine->throwError(QString::fromUtf8("Qt.callLater: first argument not a function or signal"));
0
119-
120 QPair<QObject *, int> functionData = QV4::QObjectMethod::extractQtMethod(func);-
121 QV4::ReturnedValue arg0 = argc ? argv[0].asReturnedValue() : QV4::Encode::undefined();
argcDescription
TRUEevaluated 454 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEnever evaluated
0-454
122-
123 QVector<DelayedFunctionCall>::Iterator iter;-
124 if (functionData.second != -1) {
functionData.second != -1Description
TRUEevaluated 236 times by 1 test
Evaluated by:
  • tst_qqmlqt
FALSEevaluated 218 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
218-236
125 // This is a QObject function wrapper-
126 iter = m_delayedFunctionCalls.begin();-
127 while (iter != m_delayedFunctionCalls.end()) {
iter != m_dela...ionCalls.end()Description
TRUEevaluated 410 times by 1 test
Evaluated by:
  • tst_qqmlqt
FALSEevaluated 42 times by 1 test
Evaluated by:
  • tst_qqmlqt
42-410
128 DelayedFunctionCall& dfc = *iter;-
129 QPair<QObject *, int> storedFunctionData = QV4::QObjectMethod::extractQtMethod(dfc.m_function.as<QV4::FunctionObject>());-
130 if (storedFunctionData == functionData) {
storedFunction...= functionDataDescription
TRUEevaluated 194 times by 1 test
Evaluated by:
  • tst_qqmlqt
FALSEevaluated 216 times by 1 test
Evaluated by:
  • tst_qqmlqt
194-216
131 break; // Already stored!
executed 194 times by 1 test: break;
Executed by:
  • tst_qqmlqt
194
132 }-
133 ++iter;-
134 }
executed 216 times by 1 test: end of block
Executed by:
  • tst_qqmlqt
216
135 } else {
executed 236 times by 1 test: end of block
Executed by:
  • tst_qqmlqt
236
136 // This is a JavaScript function (dynamic slot on VMEMO)-
137 iter = m_delayedFunctionCalls.begin();-
138 while (iter != m_delayedFunctionCalls.end()) {
iter != m_dela...ionCalls.end()Description
TRUEevaluated 500 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEevaluated 62 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
62-500
139 DelayedFunctionCall& dfc = *iter;-
140 if (arg0 == dfc.m_function.value()) {
arg0 == dfc.m_function.value()Description
TRUEevaluated 156 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEevaluated 344 times by 1 test
Evaluated by:
  • tst_qqmlqt
156-344
141 break; // Already stored!
executed 156 times by 2 tests: break;
Executed by:
  • tst_examples
  • tst_qqmlqt
156
142 }-
143 ++iter;-
144 }
executed 344 times by 1 test: end of block
Executed by:
  • tst_qqmlqt
344
145 }
executed 218 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
218
146-
147 const bool functionAlreadyStored = (iter != m_delayedFunctionCalls.end());-
148 if (functionAlreadyStored) {
functionAlreadyStoredDescription
TRUEevaluated 350 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEevaluated 104 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
104-350
149 DelayedFunctionCall dfc = *iter;-
150 m_delayedFunctionCalls.erase(iter);-
151 m_delayedFunctionCalls.append(dfc);-
152 } else {
executed 350 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
350
153 m_delayedFunctionCalls.append(QV4::PersistentValue(m_engine, arg0));-
154 }
executed 104 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
104
155-
156 DelayedFunctionCall& dfc = m_delayedFunctionCalls.last();-
157 if (dfc.m_objectGuard.isNull()) {
dfc.m_objectGuard.isNull()Description
TRUEevaluated 104 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEevaluated 350 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
104-350
158 if (functionData.second != -1) {
functionData.second != -1Description
TRUEevaluated 42 times by 1 test
Evaluated by:
  • tst_qqmlqt
FALSEevaluated 62 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
42-62
159 // if it's a qobject function wrapper, guard against qobject deletion-
160 dfc.m_objectGuard = QQmlGuard<QObject>(functionData.first);-
161 dfc.m_guarded = true;-
162 } else if (func->scope()->type == QV4::Heap::ExecutionContext::Type_QmlContext) {
executed 42 times by 1 test: end of block
Executed by:
  • tst_qqmlqt
func->scope()-...ype_QmlContextDescription
TRUEevaluated 60 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEevaluated 2 times by 1 test
Evaluated by:
  • tst_qqmlqt
2-60
163 QV4::QmlContext::Data *g = static_cast<QV4::QmlContext::Data *>(func->scope());-
164 Q_ASSERT(g->qml()->scopeObject);-
165 dfc.m_objectGuard = QQmlGuard<QObject>(g->qml()->scopeObject);-
166 dfc.m_guarded = true;-
167 }
executed 60 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
60
168 }
executed 104 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
104
169 storeAnyArguments(dfc, argv, argc, 1, m_engine);-
170-
171 if (!m_callbackOutstanding) {
!m_callbackOutstandingDescription
TRUEevaluated 24 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEevaluated 430 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
24-430
172 m_tickedMethod.invoke(this, Qt::QueuedConnection);-
173 m_callbackOutstanding = true;-
174 }
executed 24 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
24
175 return QV4::Encode::undefined();
executed 454 times by 2 tests: return QV4::Encode::undefined();
Executed by:
  • tst_examples
  • tst_qqmlqt
454
176}-
177-
178void QQmlDelayedCallQueue::storeAnyArguments(DelayedFunctionCall &dfc, const QV4::Value *argv, int argc, int offset, QV4::ExecutionEngine *engine)-
179{-
180 const int length = argc - offset;-
181 if (length == 0) {
length == 0Description
TRUEevaluated 442 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEevaluated 12 times by 1 test
Evaluated by:
  • tst_qqmlqt
12-442
182 dfc.m_args.clear();-
183 return;
executed 442 times by 2 tests: return;
Executed by:
  • tst_examples
  • tst_qqmlqt
442
184 }-
185 QV4::Scope scope(engine);-
186 QV4::ScopedArrayObject array(scope, engine->newArrayObject(length));-
187 uint i = 0;-
188 for (int j = offset, ej = argc; j < ej; ++i, ++j)
j < ejDescription
TRUEevaluated 24 times by 1 test
Evaluated by:
  • tst_qqmlqt
FALSEevaluated 12 times by 1 test
Evaluated by:
  • tst_qqmlqt
12-24
189 array->put(i, argv[j]);
executed 24 times by 1 test: array->put(i, argv[j]);
Executed by:
  • tst_qqmlqt
24
190 dfc.m_args.set(engine, array);-
191}
executed 12 times by 1 test: end of block
Executed by:
  • tst_qqmlqt
12
192-
193void QQmlDelayedCallQueue::executeAllExpired_Later()-
194{-
195 // Make a local copy of the list and clear m_delayedFunctionCalls-
196 // This ensures correct behavior in the case of recursive calls to Qt.callLater()-
197 QVector<DelayedFunctionCall> delayedCalls = m_delayedFunctionCalls;-
198 m_delayedFunctionCalls.clear();-
199-
200 QVector<DelayedFunctionCall>::Iterator iter = delayedCalls.begin();-
201 while (iter != delayedCalls.end()) {
iter != delayedCalls.end()Description
TRUEevaluated 94 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
FALSEevaluated 22 times by 2 tests
Evaluated by:
  • tst_examples
  • tst_qqmlqt
22-94
202 DelayedFunctionCall& dfc = *iter;-
203 dfc.execute(m_engine);-
204 ++iter;-
205 }
executed 94 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
94
206}
executed 22 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
22
207-
208void QQmlDelayedCallQueue::ticked()-
209{-
210 m_callbackOutstanding = false;-
211 executeAllExpired_Later();-
212}
executed 22 times by 2 tests: end of block
Executed by:
  • tst_examples
  • tst_qqmlqt
22
213-
214QT_END_NAMESPACE-
215-
216#include "moc_qqmldelayedcallqueue_p.cpp"-
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