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path: root/src/libs/extensionsystem/invoker.cpp
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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/

#include "invoker.h"

namespace ExtensionSystem {

InvokerBase::InvokerBase()
{
    lastArg = 0;
    useRet = false;
    nag = true;
    success = true;
    target = 0;
}

InvokerBase::~InvokerBase()
{
    if (!success && nag)
        qWarning("Could not invoke function '%s' in object of type '%s'.",
            sig.constData(), target->metaObject()->className());
}

bool InvokerBase::wasSuccessful() const
{
    nag = false;
    return success;
}

void InvokerBase::invoke(QObject *t, const char *slot)
{
    target = t;
    success = false;
    sig.append(slot, qstrlen(slot));
    sig.append('(');
    for (int paramCount = 0; paramCount < lastArg; ++paramCount) {
        if (paramCount)
            sig.append(',');
        const char *type = arg[paramCount].name();
        sig.append(type, strlen(type));
    }
    sig.append(')');
    sig.append('\0');
    int idx = target->metaObject()->indexOfMethod(sig.constData());
    if (idx < 0)
        return;
    QMetaMethod method = target->metaObject()->method(idx);
    if (useRet)
        success = method.invoke(target, ret,
           arg[0], arg[1], arg[2], arg[3], arg[4],
           arg[5], arg[6], arg[7], arg[8], arg[9]);
    else
        success = method.invoke(target,
           arg[0], arg[1], arg[2], arg[3], arg[4],
           arg[5], arg[6], arg[7], arg[8], arg[9]);
}

} // namespace ExtensionSystem