QScriptValue with simple typedef types

[JohannesMunk]

Hi there!

I can't get a simple typedefed type (like typedef CDB_ID quint32;) to work correctly as a QScriptValue / QVariant.

When I try to call a member function returning a CDB_ID from a qtscript, it always returns zero. Can anybody point me in the right direction?

typedef int CDB_ID;
 
Q_DECLARE_METATYPE(CDB_ID)
 
class SClass : public QObject
{	Q_OBJECT
public slots:
	int TestA() {return 5;}
	CDB_ID TestB() {return 8;}
};
 
QScriptValue CDB_IDToScriptValue(QScriptEngine *engine,const CDB_ID &in)
{
	return engine->newVariant(QVariant::fromValue(in));
}
 
void CDB_IDFromScriptValue(const QScriptValue &object, CDB_ID &out)
{
	out = object.toVariant().value<CDB_ID>();
}
 
..
 
	QScriptEngine eng;
	qRegisterMetaType<CDB_ID>("CDB_ID");
	qScriptRegisterMetaType<CDB_ID>(&eng, CDB_IDToScriptValue, CDB_IDFromScriptValue);
 
	SClass* s = new SClass();
	QScriptValue obj = eng.newQObject(s);
 
	// Return value as CDB_ID .. always returns 0!
	fun = eng.evaluate("function() {return this.TestB();}");
	res = fun.call(obj,QScriptValueList());
	CDB_ID cdbid = 4;
	CDB_IDFromScriptValue(res,cdbid);
	qDebug() << "B: " << res.toString() << res.isVariant() << cdbid << " error: " << eng.uncaughtException().toString();

typedef int CDB_ID;

Q_DECLARE_METATYPE(CDB_ID)

class SClass : public QObject
{	Q_OBJECT
public slots:
	int TestA() {return 5;}
	CDB_ID TestB() {return 8;}
};

QScriptValue CDB_IDToScriptValue(QScriptEngine *engine,const CDB_ID &in)
{
	return engine->newVariant(QVariant::fromValue(in));
}

void CDB_IDFromScriptValue(const QScriptValue &object, CDB_ID &out)
{
	out = object.toVariant().value<CDB_ID>();
}

..

	QScriptEngine eng;
	qRegisterMetaType<CDB_ID>("CDB_ID");
	qScriptRegisterMetaType<CDB_ID>(&eng, CDB_IDToScriptValue, CDB_IDFromScriptValue);

	SClass* s = new SClass();
	QScriptValue obj = eng.newQObject(s);

	// Return value as CDB_ID .. always returns 0!
	fun = eng.evaluate("function() {return this.TestB();}");
	res = fun.call(obj,QScriptValueList());
	CDB_ID cdbid = 4;
	CDB_IDFromScriptValue(res,cdbid);
	qDebug() << "B: " << res.toString() << res.isVariant() << cdbid << " error: " << eng.uncaughtException().toString();

To copy to clipboard, switch view to plain text mode 

Attached you will find a working demo of my problem!

Thx a lot!

Johannes