[844] | 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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| 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation (qt-info@nokia.com)
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| 6 | **
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| 7 | ** This file is part of the QtDeclarative module of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:LGPL$
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| 10 | ** Commercial Usage
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| 11 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 12 | ** accordance with the Qt Commercial License Agreement provided with the
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| 13 | ** Software or, alternatively, in accordance with the terms contained in
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| 14 | ** a written agreement between you and Nokia.
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| 15 | **
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| 16 | ** GNU Lesser General Public License Usage
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| 17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 18 | ** General Public License version 2.1 as published by the Free Software
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| 19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 20 | ** packaging of this file. Please review the following information to
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| 21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 23 | **
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| 24 | ** In addition, as a special exception, Nokia gives you certain additional
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| 25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
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| 26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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| 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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| 36 | ** If you have questions regarding the use of this file, please contact
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| 37 | ** Nokia at qt-info@nokia.com.
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| 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | #include "qdeclarativeinfo.h"
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| 43 |
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| 44 | #include "private/qdeclarativedata_p.h"
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| 45 | #include "qdeclarativecontext.h"
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| 46 | #include "private/qdeclarativecontext_p.h"
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| 47 | #include "private/qdeclarativemetatype_p.h"
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| 48 | #include "private/qdeclarativeengine_p.h"
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| 49 |
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| 50 | #include <QCoreApplication>
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| 51 |
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| 52 | QT_BEGIN_NAMESPACE
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| 53 |
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| 54 | /*!
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| 55 | \fn QDeclarativeInfo qmlInfo(const QObject *object)
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| 56 | \relates QDeclarativeEngine
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| 57 |
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| 58 | Prints warning messages that include the file and line number for the
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| 59 | specified QML \a object.
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| 60 |
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| 61 | When QML types display warning messages, it improves traceability
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| 62 | if they include the QML file and line number on which the
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| 63 | particular instance was instantiated.
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| 64 |
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| 65 | To include the file and line number, an object must be passed. If
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| 66 | the file and line number is not available for that instance
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| 67 | (either it was not instantiated by the QML engine or location
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| 68 | information is disabled), "unknown location" will be used instead.
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| 69 |
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| 70 | For example,
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| 71 |
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| 72 | \code
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| 73 | qmlInfo(object) << tr("component property is a write-once property");
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| 74 | \endcode
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| 75 |
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| 76 | prints
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| 77 |
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| 78 | \code
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| 79 | QML MyCustomType (unknown location): component property is a write-once property
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| 80 | \endcode
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| 81 | */
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| 82 |
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| 83 | class QDeclarativeInfoPrivate
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| 84 | {
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| 85 | public:
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| 86 | QDeclarativeInfoPrivate() : ref (1), object(0) {}
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| 87 |
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| 88 | int ref;
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| 89 | const QObject *object;
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| 90 | QString buffer;
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| 91 | QList<QDeclarativeError> errors;
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| 92 | };
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| 93 |
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| 94 | QDeclarativeInfo::QDeclarativeInfo(QDeclarativeInfoPrivate *p)
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| 95 | : QDebug(&p->buffer), d(p)
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| 96 | {
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| 97 | nospace();
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| 98 | }
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| 99 |
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| 100 | QDeclarativeInfo::QDeclarativeInfo(const QDeclarativeInfo &other)
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| 101 | : QDebug(other), d(other.d)
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| 102 | {
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| 103 | d->ref++;
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| 104 | }
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| 105 |
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| 106 | QDeclarativeInfo::~QDeclarativeInfo()
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| 107 | {
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| 108 | if (0 == --d->ref) {
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| 109 | QList<QDeclarativeError> errors = d->errors;
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| 110 |
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| 111 | QDeclarativeEngine *engine = 0;
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| 112 |
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| 113 | if (!d->buffer.isEmpty()) {
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| 114 | QDeclarativeError error;
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| 115 |
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| 116 | QObject *object = const_cast<QObject *>(d->object);
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| 117 |
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| 118 | if (object) {
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| 119 | engine = qmlEngine(d->object);
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| 120 | QString typeName;
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| 121 | QDeclarativeType *type = QDeclarativeMetaType::qmlType(object->metaObject());
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| 122 | if (type) {
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| 123 | typeName = QLatin1String(type->qmlTypeName());
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| 124 | int lastSlash = typeName.lastIndexOf(QLatin1Char('/'));
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| 125 | if (lastSlash != -1)
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| 126 | typeName = typeName.mid(lastSlash+1);
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| 127 | } else {
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| 128 | typeName = QString::fromUtf8(object->metaObject()->className());
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| 129 | int marker = typeName.indexOf(QLatin1String("_QMLTYPE_"));
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| 130 | if (marker != -1)
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| 131 | typeName = typeName.left(marker);
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| 132 | }
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| 133 |
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| 134 | d->buffer.prepend(QLatin1String("QML ") + typeName + QLatin1String(": "));
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| 135 |
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| 136 | QDeclarativeData *ddata = QDeclarativeData::get(object, false);
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| 137 | if (ddata && ddata->outerContext && !ddata->outerContext->url.isEmpty()) {
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| 138 | error.setUrl(ddata->outerContext->url);
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| 139 | error.setLine(ddata->lineNumber);
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| 140 | error.setColumn(ddata->columnNumber);
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| 141 | }
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| 142 | }
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| 143 |
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| 144 | error.setDescription(d->buffer);
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| 145 |
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| 146 | errors.prepend(error);
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| 147 | }
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| 148 |
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| 149 | QDeclarativeEnginePrivate::warning(engine, errors);
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| 150 |
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| 151 | delete d;
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| 152 | }
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| 153 | }
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| 154 |
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| 155 | QDeclarativeInfo qmlInfo(const QObject *me)
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| 156 | {
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| 157 | QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
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| 158 | d->object = me;
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| 159 | return QDeclarativeInfo(d);
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| 160 | }
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| 161 |
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| 162 | QDeclarativeInfo qmlInfo(const QObject *me, const QDeclarativeError &error)
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| 163 | {
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| 164 | QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
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| 165 | d->object = me;
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| 166 | d->errors << error;
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| 167 | return QDeclarativeInfo(d);
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| 168 | }
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| 169 |
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| 170 | QDeclarativeInfo qmlInfo(const QObject *me, const QList<QDeclarativeError> &errors)
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| 171 | {
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| 172 | QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
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| 173 | d->object = me;
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| 174 | d->errors = errors;
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| 175 | return QDeclarativeInfo(d);
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| 176 | }
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| 177 |
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| 178 |
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| 179 | QT_END_NAMESPACE
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