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/* This file is part of the KDE frameworks
Copyright (c) 2015 David Faure <faure@kde.org>
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License or ( at
your option ) version 3 or, at the discretion of KDE e.V. ( which shall
act as a proxy as in section 14 of the GPLv3 ), any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <QDebug>
#include <kross/core/metafunction.h>
#include <QMetaMethod>
#include <QTest>
class MyFunction : public Kross::MetaFunction
{
public:
MyFunction(QObject* sender, const QByteArray& signal)
: Kross::MetaFunction(sender, signal) {}
int qt_metacall(QMetaObject::Call _c, int _id, void **_a) override {
_id = QObject::qt_metacall(_c, _id, _a);
if (_id >= 0 && _c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0:
{
// convert the arguments
QMetaMethod method = metaObject()->method( metaObject()->indexOfMethod(m_signature.constData()) );
m_paramTypes = method.parameterTypes();
for (int idx = 0; idx < m_paramTypes.size(); ++idx) {
const int tp = QVariant::nameToType( m_paramTypes.at(idx).constData() );
QVariant v(tp, _a[idx+1]);
m_paramValues.append(v);
}
}
}
_id -= 1;
}
return _id;
}
QList<QByteArray> paramTypes() const { return m_paramTypes; }
QList<QVariant> paramValues() const { return m_paramValues; }
private:
QList<QByteArray> m_paramTypes;
QList<QVariant> m_paramValues;
};
class WrappedObject : public QObject
{
Q_OBJECT
public:
void doEmit() { emit valueChanged(42); }
Q_SIGNALS:
void valueChanged(int);
};
class MetaFunctionTest : public QObject
{
Q_OBJECT
private Q_SLOTS:
void testMetaFunction()
{
WrappedObject obj;
QList<MyFunction *> funcs;
// mostly from kross-interpreters/python/pythonscript.cpp
const QMetaObject* metaobject = obj.metaObject();
const int count = metaobject->methodCount();
for(int i = 0; i < count; ++i) {
QMetaMethod metamethod = metaobject->method(i);
if( metamethod.methodType() == QMetaMethod::Signal ) {
const QByteArray signature = metamethod.methodSignature();
// skip signals from QObject
if (signature.startsWith("destroyed") || signature.startsWith("objectNameChanged"))
continue;
MyFunction *func = new MyFunction(&obj, signature);
funcs.append(func);
const QByteArray name = signature.left(signature.indexOf('('));
QByteArray sendersignal = signature;
sendersignal.prepend(QSIGNAL_CODE + '0');
QByteArray receiverslot = signature;
receiverslot.prepend(QSLOT_CODE + '0');
QObject::connect(&obj, sendersignal.constData(), func, receiverslot.constData());
}
}
QCOMPARE(funcs.count(), 1); // valueChanged
MyFunction* valueChangedFunc = funcs.at(0);
const QMetaObject *valueChangedMetaObj = valueChangedFunc->metaObject();
bool found = false;
QByteArray foundSig;
for (int i = 0; i < valueChangedMetaObj->methodCount(); ++i) {
QMetaMethod method = valueChangedMetaObj->method(i);
if (method.name() == "valueChanged") {
found = true;
foundSig = method.methodSignature();
}
}
QVERIFY2(found, "no valueChanged method/slot found in dynamic meta object!");
QCOMPARE(foundSig.constData(), "valueChanged(int)");
obj.doEmit();
QCOMPARE(funcs.at(0)->paramTypes(), QList<QByteArray>() << "int");
QCOMPARE(funcs.at(0)->paramValues().at(0).toInt(), 42);
qDeleteAll(funcs);
}
};
QTEST_MAIN(MetaFunctionTest)
#include "metafunctiontest.moc"
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