doc/src/snippets/code/src_script_qscriptvalue.cpp
author Eckhart Koeppen <eckhart.koppen@nokia.com>
Thu, 08 Apr 2010 14:19:33 +0300
branchRCL_3
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the documentation of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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//! [0]
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QScriptEngine myEngine;
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QScriptValue myObject = myEngine.newObject();
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QScriptValue myOtherObject = myEngine.newObject();
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myObject.setProperty("myChild", myOtherObject);
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myObject.setProperty("name", "John Doe");
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//! [0]
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//! [1]
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QScriptValue val(&myEngine, 123);
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myObject.setProperty("myReadOnlyProperty", val, QScriptValue::ReadOnly);
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//! [1]
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//! [2]
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QScriptEngine engine;
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engine.evaluate("function fullName() { return this.firstName + ' ' + this.lastName; }");
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engine.evaluate("somePerson = { firstName: 'John', lastName: 'Doe' }");
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QScriptValue global = engine.globalObject();
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QScriptValue fullName = global.property("fullName");
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QScriptValue who = global.property("somePerson");
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qDebug() << fullName.call(who).toString(); // "John Doe"
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engine.evaluate("function cube(x) { return x * x * x; }");
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QScriptValue cube = global.property("cube");
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QScriptValueList args;
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args << 3;
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qDebug() << cube.call(QScriptValue(), args).toNumber(); // 27
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//! [2]
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//! [3]
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QScriptValue myNativeFunction(QScriptContext *ctx, QScriptEngine *)
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{
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    QScriptValue otherFunction = ...;
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    return otherFunction.call(ctx->thisObject(), ctx->argumentsObject());
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}
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//! [3]