Default Conversion from Qt Script to C++

http://doc.qt.nokia.com/4.4/qtscript.html#default-conversion-from-qt-script-to-c

C++ Type	Default Conversion
bool	QScriptValue::toBoolean()
int	QScriptValue::toInt32()
uint	QScriptValue::toUInt32()
float	float(QScriptValue::toNumber())
double	QScriptValue::toNumber()
short	short(QScriptValue::toInt32())
ushort	QScriptValue::toUInt16()
char	char(QScriptValue::toInt32())
uchar	unsigned char(QScriptValue::toInt32())
qlonglong	qlonglong(QScriptValue::toInteger())
qulonglong	qulonglong(QScriptValue::toInteger())
QString	QScriptValue::toString()
QDateTime	QScriptValue::toDateTime()
QDate	QScriptValue::toDateTime().date()
QRegExp	QScriptValue::toRegExp()
QObject*	QScriptValue::toQObject()
QWidget*	QScriptValue::toQObject()
QVariant	QScriptValue::toVariant()
QChar	If the QScriptValue is a string, the result is the first character of the string, or a null QChar if the string is empty; otherwise, the result is a QCharconstructed from the unicode obtained by converting the QScriptValue to a ushort.
QStringList	If the QScriptValue is an array, the result is a QStringList constructed from the result of QScriptValue::toString() for each array element; otherwise, the result is an empty QStringList.
QVariantList	If the QScriptValue is an array, the result is a QVariantList constructed from the result of QScriptValue::toVariant() for each array element; otherwise, the result is an empty QVariantList.
QVariantMap	If the QScriptValue is an object, the result is a QVariantMap with a (key, value) pair of the form (propertyName, propertyValue.toVariant()) for each property, using QScriptValueIterator to iterate over the object's properties.
QObjectList	If the QScriptValue is an array, the result is a QObjectList constructed from the result of QScriptValue::toQObject() for each array element; otherwise, the result is an empty QObjectList.
QList<int>	If the QScriptValue is an array, the result is a QList<int> constructed from the result of QScriptValue::toInt32() for each array element; otherwise, the result is an empty QList<int>.

Additionally, QtScript will handle the following cases:

If the QScriptValue is a QObject and the target type name ends with * (i.e., it is a pointer), the QObject pointer will be cast to the target type with qobject_cast().
If the QScriptValue is a QVariant and the target type name ends with * (i.e., it is a pointer), and the userType() of the QVariant is the type that the target type points to, the result is a pointer to theQVariant's data.
If the QScriptValue is a QVariant and it can be converted to the target type (according to QVariant::canConvert()), the QVariant will be cast to the target type with qvariant_cast().

Default Conversion from C++ to Qt Script

The following table describes the default behavior when a QScriptValue is constructed from a C++ type:

C++ Type	Default Construction
void	QScriptEngine::undefinedValue()
bool	QScriptValue(engine, value)
int	QScriptValue(engine, value)
uint	QScriptValue(engine, value)
float	QScriptValue(engine, value)
double	QScriptValue(engine, value)
short	QScriptValue(engine, value)
ushort	QScriptValue(engine, value)
char	QScriptValue(engine, value)
uchar	QScriptValue(engine, value)
QString	QScriptValue(engine, value)
qlonglong	QScriptValue(engine, qsreal(value)). Note that the conversion may lead to loss of precision, since not all 64-bit integers can be represented using the qsreal type.
qulonglong	QScriptValue(engine, qsreal(value)). Note that the conversion may lead to loss of precision, since not all 64-bit unsigned integers can be represented using the qsreal type.
QChar	QScriptValue(this, value.unicode())
QDateTime	QScriptEngine::newDate(value)
QDate	QScriptEngine::newDate(value)
QRegExp	QScriptEngine::newRegExp(value)
QObject*	QScriptEngine::newQObject(value)
QWidget*	QScriptEngine::newQObject(value)
QVariant	QScriptEngine::newVariant(value)
QStringList	A new script array (created with QScriptEngine::newArray()), whose elements are created using the QScriptValue(QScriptEngine *, QString) constructor for each element of the list.
QVariantList	A new script array (created with QScriptEngine::newArray()), whose elements are created using QScriptEngine::newVariant() for each element of the list.
QVariantMap	A new script object (created with QScriptEngine::newObject()), whose properties are initialized according to the (key, value) pairs of the map.
QObjectList	A new script array (created with QScriptEngine::newArray()), whose elements are created using QScriptEngine::newQObject() for each element of the list.
QList<int>	A new script array (created with QScriptEngine::newArray()), whose elements are created using the QScriptValue(QScriptEngine *, int) constructor for each element of the list.

Other types (including custom types) will be wrapped using QScriptEngine::newVariant(). For null pointers of any type, the result is QScriptEngine::nullValue().

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