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qqmlvme_p.h

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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 QQMLVME_P_H-
41#define QQMLVME_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 "qqmlerror.h"-
55#include <private/qbitfield_p.h>-
56#include <private/qrecursionwatcher_p.h>-
57-
58#include <QtCore/QStack>-
59#include <QtCore/QString>-
60#include <QtCore/qelapsedtimer.h>-
61#include <QtCore/qcoreapplication.h>-
62#include <QtCore/qtypeinfo.h>-
63-
64#include <private/qqmlengine_p.h>-
65#include <private/qfinitestack_p.h>-
66-
67QT_BEGIN_NAMESPACE-
68-
69class QObject;-
70class QJSValue;-
71class QQmlScriptData;-
72class QQmlContextData;-
73-
74namespace QQmlVMETypes {-
75 struct List-
76 {-
77 List() : type(0) {}
never executed: end of block
0
78 List(int t) : type(t) {}
never executed: end of block
0
79-
80 int type;-
81 QQmlListProperty<void> qListProperty;-
82 };-
83 struct State {-
84 enum Flag { Deferred = 0x00000001 };-
85-
86 State() : flags(0), context(nullptr), instructionStream(nullptr) {}
never executed: end of block
0
87 quint32 flags;-
88 QQmlContextData *context;-
89 const char *instructionStream;-
90 QBitField bindingSkipList;-
91 };-
92}-
93Q_DECLARE_TYPEINFO(QQmlVMETypes::List, Q_PRIMITIVE_TYPE | Q_MOVABLE_TYPE);-
94template<>-
95class QTypeInfo<QQmlVMETypes::State> : public QTypeInfoMerger<QQmlVMETypes::State, QBitField> {}; //Q_DECLARE_TYPEINFO-
96-
97class QQmlInstantiationInterrupt {-
98public:-
99 inline QQmlInstantiationInterrupt();-
100 inline QQmlInstantiationInterrupt(volatile bool *runWhile, int nsecs=0);-
101 inline QQmlInstantiationInterrupt(int nsecs);-
102-
103 inline void reset();-
104 inline bool shouldInterrupt() const;-
105private:-
106 enum Mode { None, Time, Flag };-
107 Mode mode;-
108 QElapsedTimer timer;-
109 int nsecs;-
110 volatile bool *runWhile;-
111};-
112-
113class Q_QML_PRIVATE_EXPORT QQmlVME-
114{-
115public:-
116 static void enableComponentComplete();-
117 static void disableComponentComplete();-
118 static bool componentCompleteEnabled();-
119-
120private:-
121 static bool s_enableComponentComplete;-
122};-
123-
124// Used to check that a QQmlVME that is interrupted mid-execution-
125// is still valid. Checks all the objects and contexts have not been-
126// deleted.-
127//-
128// VME stands for Virtual Machine Execution. QML files used to-
129// be compiled to a byte code data structure that a virtual machine executed-
130// (for constructing the tree of QObjects and setting properties).-
131class QQmlVMEGuard-
132{-
133public:-
134 QQmlVMEGuard();-
135 ~QQmlVMEGuard();-
136-
137 void guard(QQmlObjectCreator *);-
138 void clear();-
139-
140 bool isOK() const;-
141-
142private:-
143 int m_objectCount;-
144 QPointer<QObject> *m_objects;-
145 int m_contextCount;-
146 QQmlGuardedContextData *m_contexts;-
147};-
148-
149QQmlInstantiationInterrupt::QQmlInstantiationInterrupt()-
150 : mode(None), nsecs(0), runWhile(nullptr)-
151{-
152}
executed 150100 times by 140 tests: end of block
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_qjsengine
  • 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_qqmlfileselector
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • tst_qqmlitemmodels
  • tst_qqmllistmodel
  • ...
150100
153-
154QQmlInstantiationInterrupt::QQmlInstantiationInterrupt(volatile bool *runWhile, int nsecs)-
155 : mode(Flag), nsecs(nsecs), runWhile(runWhile)-
156{-
157}
executed 1580 times by 5 tests: end of block
Executed by:
  • tst_qqmlincubator
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickpathview
  • tst_qquickrepeater
1580
158-
159QQmlInstantiationInterrupt::QQmlInstantiationInterrupt(int nsecs)-
160 : mode(Time), nsecs(nsecs), runWhile(nullptr)-
161{-
162}
executed 973 times by 9 tests: end of block
Executed by:
  • tst_qqmlcomponent
  • tst_qqmlinstantiator
  • tst_qqmltypeloader
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickloader
  • tst_qquickmousearea
  • tst_qquickpathview
  • tst_qquickrepeater
973
163-
164void QQmlInstantiationInterrupt::reset()-
165{-
166 if (mode == Time || nsecs)
mode == TimeDescription
TRUEevaluated 973 times by 9 tests
Evaluated by:
  • tst_qqmlcomponent
  • tst_qqmlinstantiator
  • tst_qqmltypeloader
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickloader
  • tst_qquickmousearea
  • tst_qquickpathview
  • tst_qquickrepeater
FALSEevaluated 1580 times by 5 tests
Evaluated by:
  • tst_qqmlincubator
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickpathview
  • tst_qquickrepeater
nsecsDescription
TRUEnever evaluated
FALSEevaluated 1580 times by 5 tests
Evaluated by:
  • tst_qqmlincubator
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickpathview
  • tst_qquickrepeater
0-1580
167 timer.start();
executed 973 times by 9 tests: timer.start();
Executed by:
  • tst_qqmlcomponent
  • tst_qqmlinstantiator
  • tst_qqmltypeloader
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickloader
  • tst_qquickmousearea
  • tst_qquickpathview
  • tst_qquickrepeater
973
168}
executed 2553 times by 10 tests: end of block
Executed by:
  • tst_qqmlcomponent
  • tst_qqmlincubator
  • tst_qqmlinstantiator
  • tst_qqmltypeloader
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickloader
  • tst_qquickmousearea
  • tst_qquickpathview
  • tst_qquickrepeater
2553
169-
170bool QQmlInstantiationInterrupt::shouldInterrupt() const-
171{-
172 if (mode == None) {
mode == NoneDescription
TRUEevaluated 1190778 times by 136 tests
Evaluated by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_qmlcachegen
  • tst_qmldiskcache
  • tst_qqmlapplicationengine
  • tst_qqmlbinding
  • tst_qqmlcomponent
  • tst_qqmlconnections
  • tst_qqmlconsole
  • tst_qqmlcontext
  • tst_qqmldebugjs
  • tst_qqmlecmascript
  • tst_qqmlenginedebugservice
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • tst_qqmlitemmodels
  • tst_qqmllistmodel
  • tst_qqmllistmodelworkerscript
  • tst_qqmllistreference
  • tst_qqmllocale
  • ...
FALSEevaluated 28559 times by 10 tests
Evaluated by:
  • tst_qqmlcomponent
  • tst_qqmlincubator
  • tst_qqmlinstantiator
  • tst_qqmltypeloader
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickloader
  • tst_qquickmousearea
  • tst_qquickpathview
  • tst_qquickrepeater
28559-1190778
173 return false;
executed 1190778 times by 136 tests: return false;
Executed by:
  • tst_bindingdependencyapi
  • tst_drawingmodes
  • tst_examples
  • tst_flickableinterop
  • tst_multipointtoucharea_interop
  • tst_qmlcachegen
  • tst_qmldiskcache
  • tst_qqmlapplicationengine
  • tst_qqmlbinding
  • tst_qqmlcomponent
  • tst_qqmlconnections
  • tst_qqmlconsole
  • tst_qqmlcontext
  • tst_qqmldebugjs
  • tst_qqmlecmascript
  • tst_qqmlenginedebugservice
  • tst_qqmlimport
  • tst_qqmlincubator
  • tst_qqmlinfo
  • tst_qqmlinstantiator
  • tst_qqmlitemmodels
  • tst_qqmllistmodel
  • tst_qqmllistmodelworkerscript
  • tst_qqmllistreference
  • tst_qqmllocale
  • ...
1190778
174 } else if (mode == Time) {
mode == TimeDescription
TRUEevaluated 24339 times by 9 tests
Evaluated by:
  • tst_qqmlcomponent
  • tst_qqmlinstantiator
  • tst_qqmltypeloader
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickloader
  • tst_qquickmousearea
  • tst_qquickpathview
  • tst_qquickrepeater
FALSEevaluated 4220 times by 5 tests
Evaluated by:
  • tst_qqmlincubator
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickpathview
  • tst_qquickrepeater
4220-24339
175 return timer.nsecsElapsed() > nsecs;
executed 24339 times by 9 tests: return timer.nsecsElapsed() > nsecs;
Executed by:
  • tst_qqmlcomponent
  • tst_qqmlinstantiator
  • tst_qqmltypeloader
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickloader
  • tst_qquickmousearea
  • tst_qquickpathview
  • tst_qquickrepeater
24339
176 } else if (mode == Flag) {
mode == FlagDescription
TRUEevaluated 4220 times by 5 tests
Evaluated by:
  • tst_qqmlincubator
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickpathview
  • tst_qquickrepeater
FALSEnever evaluated
0-4220
177 return !*runWhile || (nsecs && timer.nsecsElapsed() > nsecs);
executed 4220 times by 5 tests: return !*runWhile || (nsecs && timer.nsecsElapsed() > nsecs);
Executed by:
  • tst_qqmlincubator
  • tst_qquickgridview
  • tst_qquicklistview
  • tst_qquickpathview
  • tst_qquickrepeater
4220
178 } else {-
179 return false;
never executed: return false;
0
180 }-
181}-
182-
183QT_END_NAMESPACE-
184-
185#endif // QQMLVME_P_H-
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