qt_runtime.cpp

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                    if (result.count() == len) {
                        dist = 5;
                        ret = QVariant::fromValue(result);
                    }
                } else {
                    // Make a single length array
                    QList<int> result;
                    int itemdist = -1;
                    QVariant item = convertValueToQVariant(exec, value, QMetaType::Int, &itemdist, visitedObjects);
                    if (itemdist >= 0) {
                        result.append(item.value<int>());
                        dist = 10;
                        ret = QVariant::fromValue(result);
                    }
                }
                break;
            } else if (hint == (QMetaType::Type) qMetaTypeId<QVariant>()) {
                if (value.isUndefinedOrNull()) {
                    if (distance)
                        *distance = 1;
                    return QVariant();
                } else {
                    if (type == Object) {
                        // Since we haven't really visited this object yet, we remove it
                        visitedObjects->remove(object);
                    }

                    // And then recurse with the autodetect flag
                    ret = convertValueToQVariant(exec, value, QMetaType::Void, distance, visitedObjects);
                    dist = 10;
                }
                break;
            }

            dist = 10;
            break;
    }

    if (!ret.isValid())
        dist = -1;
    if (distance)
        *distance = dist;

    return ret;
}

QVariant convertValueToQVariant(ExecState* exec, JSValuePtr value, QMetaType::Type hint, int *distance)
{
    HashSet<JSObject*> visitedObjects;
    return convertValueToQVariant(exec, value, hint, distance, &visitedObjects);
}

JSValuePtr convertQVariantToValue(ExecState* exec, PassRefPtr<RootObject> root, const QVariant& variant)
{
    // Variants with QObject * can be isNull but not a null pointer
    // An empty QString variant is also null
    QMetaType::Type type = (QMetaType::Type) variant.userType();

    qConvDebug() << "convertQVariantToValue: metatype:" << type << ", isnull: " << variant.isNull();
    if (variant.isNull() &&
        type != QMetaType::QObjectStar &&
        type != QMetaType::VoidStar &&
        type != QMetaType::QWidgetStar &&
        type != QMetaType::QString) {
        return jsNull();
    }

    JSLock lock(false);

    if (type == QMetaType::Bool)
        return jsBoolean(variant.toBool());

    if (type == QMetaType::Int ||
        type == QMetaType::UInt ||
        type == QMetaType::Long ||
        type == QMetaType::ULong ||
        type == QMetaType::LongLong ||
        type == QMetaType::ULongLong ||
        type == QMetaType::Short ||
        type == QMetaType::UShort ||
        type == QMetaType::Float ||
        type == QMetaType::Double)
        return jsNumber(exec, variant.toDouble());

    if (type == QMetaType::QRegExp) {
        QRegExp re = variant.value<QRegExp>();

        if (re.isValid()) {
            UString uflags;
            if (re.caseSensitivity() == Qt::CaseInsensitive)
                uflags = "i"; // ### Can't do g or m

            UString pattern((UChar*)re.pattern().utf16(), re.pattern().length());

            RefPtr<JSC::RegExp> regExp = JSC::RegExp::create(&exec->globalData(), pattern, uflags);
            if (regExp->isValid())
                return new (exec) RegExpObject(exec->lexicalGlobalObject()->regExpStructure(), regExp.release());
            else
                return jsNull();
        }
    }

    if (type == QMetaType::QDateTime ||
        type == QMetaType::QDate ||
        type == QMetaType::QTime) {

        QDate date = QDate::currentDate();
        QTime time(0,0,0); // midnight

        if (type == QMetaType::QDate)
            date = variant.value<QDate>();
        else if (type == QMetaType::QTime)
            time = variant.value<QTime>();
        else {
            QDateTime dt = variant.value<QDateTime>().toLocalTime();
            date = dt.date();
            time = dt.time();
        }

        // Dates specified this way are in local time (we convert DateTimes above)
        GregorianDateTime dt;
        dt.year = date.year() - 1900;
        dt.month = date.month() - 1;
        dt.monthDay = date.day();
        dt.hour = time.hour();
        dt.minute = time.minute();
        dt.second = time.second();
        dt.isDST = -1;
        double ms = JSC::gregorianDateTimeToMS(dt, time.msec(), /*inputIsUTC*/ false);

        DateInstance* instance = new (exec) DateInstance(exec->lexicalGlobalObject()->dateStructure());
        instance->setInternalValue(jsNumber(exec, trunc(ms)));
        return instance;
    }

    if (type == QMetaType::QByteArray) {
        QByteArray qtByteArray = variant.value<QByteArray>();
        WTF::RefPtr<WTF::ByteArray> wtfByteArray = WTF::ByteArray::create(qtByteArray.length());
        qMemCopy(wtfByteArray->data(), qtByteArray.constData(), qtByteArray.length());
        return new (exec) JSC::JSByteArray(exec, JSC::JSByteArray::createStructure(jsNull()), wtfByteArray.get());
    }

    if (type == QMetaType::QObjectStar || type == QMetaType::QWidgetStar) {
        QObject* obj = variant.value<QObject*>();
        return QtInstance::getQtInstance(obj, root, QScriptEngine::QtOwnership)->createRuntimeObject(exec);
    }

    if (type == QMetaType::QVariantMap) {
        // create a new object, and stuff properties into it
        JSObject* ret = constructEmptyObject(exec);
        QVariantMap map = variant.value<QVariantMap>();
        QVariantMap::const_iterator i = map.constBegin();
        while (i != map.constEnd()) {
            QString s = i.key();
            JSValuePtr val = convertQVariantToValue(exec, root, i.value());
            if (val) {
                PutPropertySlot slot;
                ret->put(exec, Identifier(exec, (const UChar *)s.constData(), s.length()), val, slot);
                // ### error case?
            }
            ++i;
        }

        return ret;
    }

    // List types
    if (type == QMetaType::QVariantList) {
        QVariantList vl = variant.toList();
        qConvDebug() << "got a " << vl.count() << " length list:" << vl;
        return new (exec) RuntimeArray(exec, new QtArray<QVariant>(vl, QMetaType::Void, root));
    } else if (type == QMetaType::QStringList) {
        QStringList sl = variant.value<QStringList>();
        return new (exec) RuntimeArray(exec, new QtArray<QString>(sl, QMetaType::QString, root));
    } else if (type == (QMetaType::Type) qMetaTypeId<QObjectList>()) {
        QObjectList ol= variant.value<QObjectList>();
        return new (exec) RuntimeArray(exec, new QtArray<QObject*>(ol, QMetaType::QObjectStar, root));
    } else if (type == (QMetaType::Type)qMetaTypeId<QList<int> >()) {
        QList<int> il= variant.value<QList<int> >();
        return new (exec) RuntimeArray(exec, new QtArray<int>(il, QMetaType::Int, root));
    }

    if (type == (QMetaType::Type)qMetaTypeId<QVariant>()) {
        QVariant real = variant.value<QVariant>();
        qConvDebug() << "real variant is:" << real;
        return convertQVariantToValue(exec, root, real);
    }

    qConvDebug() << "fallback path for" << variant << variant.userType();

    QString string = variant.toString();
    UString ustring((UChar*)string.utf16(), string.length());
    return jsString(exec, ustring);
}

// ===============

// Qt-like macros
#define QW_D(Class) Class##Data* d = d_func()
#define QW_DS(Class,Instance) Class##Data* d = Instance->d_func()

const ClassInfo QtRuntimeMethod::s_info = { "QtRuntimeMethod", 0, 0, 0 };

QtRuntimeMethod::QtRuntimeMethod(QtRuntimeMethodData* dd, ExecState* exec, const Identifier& ident, PassRefPtr<QtInstance> inst)
    : InternalFunction(&exec->globalData(), getDOMStructure<QtRuntimeMethod>(exec), ident)
    , d_ptr(dd)
{
    QW_D(QtRuntimeMethod);
    d->m_instance = inst;
}

QtRuntimeMethod::~QtRuntimeMethod()
{
    delete d_ptr;
}

// ===============

QtRuntimeMethodData::~QtRuntimeMethodData()
{
}

QtRuntimeMetaMethodData::~QtRuntimeMetaMethodData()
{

}

QtRuntimeConnectionMethodData::~QtRuntimeConnectionMethodData()
{

}

// ===============

// Type conversion metadata (from QtScript originally)
class QtMethodMatchType
{
public:
    enum Kind {
        Invalid,
        Variant,
        MetaType,
        Unresolved,
        MetaEnum
    };


    QtMethodMatchType()
        : m_kind(Invalid) { }

    Kind kind() const
    { return m_kind; }

    QMetaType::Type typeId() const;

    bool isValid() const
    { return (m_kind != Invalid); }

    bool isVariant() const
    { return (m_kind == Variant); }

    bool isMetaType() const
    { return (m_kind == MetaType); }

    bool isUnresolved() const
    { return (m_kind == Unresolved); }

    bool isMetaEnum() const
    { return (m_kind == MetaEnum); }

    QByteArray name() const;

    int enumeratorIndex() const
    { Q_ASSERT(isMetaEnum()); return m_typeId; }

    static QtMethodMatchType variant()
    { return QtMethodMatchType(Variant); }

    static QtMethodMatchType metaType(int typeId, const QByteArray &name)
    { return QtMethodMatchType(MetaType, typeId, name); }

    static QtMethodMatchType metaEnum(int enumIndex, const QByteArray &name)
    { return QtMethodMatchType(MetaEnum, enumIndex, name); }

    static QtMethodMatchType unresolved(const QByteArray &name)
    { return QtMethodMatchType(Unresolved, /*typeId=*/0, name); }

private:
    QtMethodMatchType(Kind kind, int typeId = 0, const QByteArray &name = QByteArray())
        : m_kind(kind), m_typeId(typeId), m_name(name) { }

    Kind m_kind;
    int m_typeId;
    QByteArray m_name;
};

QMetaType::Type QtMethodMatchType::typeId() const
{
    if (isVariant())
        return (QMetaType::Type) QMetaType::type("QVariant");
    return (QMetaType::Type) (isMetaEnum() ? QMetaType::Int : m_typeId);
}

QByteArray QtMethodMatchType::name() const
{
    if (!m_name.isEmpty())
        return m_name;
    else if (m_kind == Variant)
        return "QVariant";
    return QByteArray();
}

struct QtMethodMatchData
{
    int matchDistance;
    int index;
    QVector<QtMethodMatchType> types;
    QVarLengthArray<QVariant, 10> args;

    QtMethodMatchData(int dist, int idx, QVector<QtMethodMatchType> typs,
                                const QVarLengthArray<QVariant, 10> &as)
        : matchDistance(dist), index(idx), types(typs), args(as) { }
    QtMethodMatchData()
        : index(-1) { }

    bool isValid() const
    { return (index != -1); }

    int firstUnresolvedIndex() const
    {
        for (int i=0; i < types.count(); i++) {
            if (types.at(i).isUnresolved())
                return i;
        }
        return -1;
    }
};

static int indexOfMetaEnum(const QMetaObject *meta, const QByteArray &str)
{
    QByteArray scope;
    QByteArray name;
    int scopeIdx = str.indexOf("::");
    if (scopeIdx != -1) {
        scope = str.left(scopeIdx);
        name = str.mid(scopeIdx + 2);
    } else {
        name = str;
    }
    for (int i = meta->enumeratorCount() - 1; i >= 0; --i) {
        QMetaEnum m = meta->enumerator(i);