Example #1
0
// Puts 'object' into 'variant', moving ownership without copying any data.
// If 'pointerId' is not zero, then the pointer to the object will be stored
// instead.
void putObjectIntoVariant (QVariant &variant, void *object, int typeId, int pointerId) {
	if (pointerId) {
		variant = QVariant (pointerId, &object, true);
		return;
	}
	
	// 
	variant.clear ();
	
	QVariant::DataPtr &data = variant.data_ptr ();
	data.is_shared = true;
	data.is_null = false;
	data.type = typeId;
	data.data.shared = new QVariant::PrivateShared (object);
	
}
Example #2
0
/*!
    \internal
    convert \a value to \a type, store the result in \a ptr
*/
bool QJSEngine::convertV2(const QJSValue &value, int type, void *ptr)
{
    QV4::ExecutionEngine *v4 = QJSValuePrivate::engine(&value);
    QV4::Value scratch;
    QV4::Value *val = QJSValuePrivate::valueForData(&value, &scratch);
    if (v4) {
        QV4::Scope scope(v4);
        QV4::ScopedValue v(scope, *val);
        return scope.engine->metaTypeFromJS(v, type, ptr);
    }

    if (!val) {
        QVariant *variant = QJSValuePrivate::getVariant(&value);
        Q_ASSERT(variant);

        if (variant->userType() == QMetaType::QString) {
            QString string = variant->toString();
            // have a string based value without engine. Do conversion manually
            if (type == QMetaType::Bool) {
                *reinterpret_cast<bool*>(ptr) = string.length() != 0;
                return true;
            }
            if (type == QMetaType::QString) {
                *reinterpret_cast<QString*>(ptr) = string;
                return true;
            }
            double d = QV4::RuntimeHelpers::stringToNumber(string);
            switch (type) {
            case QMetaType::Int:
                *reinterpret_cast<int*>(ptr) = QV4::Primitive::toInt32(d);
                return true;
            case QMetaType::UInt:
                *reinterpret_cast<uint*>(ptr) = QV4::Primitive::toUInt32(d);
                return true;
            case QMetaType::LongLong:
                *reinterpret_cast<qlonglong*>(ptr) = QV4::Primitive::toInteger(d);
                return true;
            case QMetaType::ULongLong:
                *reinterpret_cast<qulonglong*>(ptr) = QV4::Primitive::toInteger(d);
                return true;
            case QMetaType::Double:
                *reinterpret_cast<double*>(ptr) = d;
                return true;
            case QMetaType::Float:
                *reinterpret_cast<float*>(ptr) = d;
                return true;
            case QMetaType::Short:
                *reinterpret_cast<short*>(ptr) = QV4::Primitive::toInt32(d);
                return true;
            case QMetaType::UShort:
                *reinterpret_cast<unsigned short*>(ptr) = QV4::Primitive::toUInt32(d);
                return true;
            case QMetaType::Char:
                *reinterpret_cast<char*>(ptr) = QV4::Primitive::toInt32(d);
                return true;
            case QMetaType::UChar:
                *reinterpret_cast<unsigned char*>(ptr) = QV4::Primitive::toUInt32(d);
                return true;
            case QMetaType::QChar:
                *reinterpret_cast<QChar*>(ptr) = QV4::Primitive::toUInt32(d);
                return true;
            default:
                return false;
            }
        } else {
            return QMetaType::convert(&variant->data_ptr(), variant->userType(), ptr, type);
        }
    }

    Q_ASSERT(val);

    switch (type) {
        case QMetaType::Bool:
            *reinterpret_cast<bool*>(ptr) = val->toBoolean();
            return true;
        case QMetaType::Int:
            *reinterpret_cast<int*>(ptr) = val->toInt32();
            return true;
        case QMetaType::UInt:
            *reinterpret_cast<uint*>(ptr) = val->toUInt32();
            return true;
        case QMetaType::LongLong:
            *reinterpret_cast<qlonglong*>(ptr) = val->toInteger();
            return true;
        case QMetaType::ULongLong:
            *reinterpret_cast<qulonglong*>(ptr) = val->toInteger();
            return true;
        case QMetaType::Double:
            *reinterpret_cast<double*>(ptr) = val->toNumber();
            return true;
        case QMetaType::QString:
            *reinterpret_cast<QString*>(ptr) = val->toQStringNoThrow();
            return true;
        case QMetaType::Float:
            *reinterpret_cast<float*>(ptr) = val->toNumber();
            return true;
        case QMetaType::Short:
            *reinterpret_cast<short*>(ptr) = val->toInt32();
            return true;
        case QMetaType::UShort:
            *reinterpret_cast<unsigned short*>(ptr) = val->toUInt16();
            return true;
        case QMetaType::Char:
            *reinterpret_cast<char*>(ptr) = val->toInt32();
            return true;
        case QMetaType::UChar:
            *reinterpret_cast<unsigned char*>(ptr) = val->toUInt16();
            return true;
        case QMetaType::QChar:
            *reinterpret_cast<QChar*>(ptr) = val->toUInt16();
            return true;
        default:
            return false;
    }
}