C++ PropertyNameArray::add方法代码示例

void CInstance::getPropertyNames(ExecState* exec, PropertyNameArray& nameArray)
{
    if (!NP_CLASS_STRUCT_VERSION_HAS_ENUM(_object->_class) || !_object->_class->enumerate)
        return;

    uint32_t count;
    NPIdentifier* identifiers;

    {
        JSLock::DropAllLocks dropAllLocks(false);
#if PLATFORM(AMIGAOS4)
        if (!_object->_class->enumerate(_object, &identifiers, (uint32_t *)&count))
#else
        if (!_object->_class->enumerate(_object, &identifiers, &count))
#endif
            return;
    }

    for (uint32_t i = 0; i < count; i++) {
        PrivateIdentifier* identifier = static_cast<PrivateIdentifier*>(identifiers[i]);

        if (identifier->isString)
            nameArray.add(identifierFromNPIdentifier(identifier->value.string));
        else
            nameArray.add(Identifier::from(exec, identifier->value.number));
    }

    // FIXME: This should really call NPN_MemFree but that's in WebKit
    free(identifiers);
}

void PropertyMap::getSparseArrayPropertyNames(PropertyNameArray& propertyNames) const
{
    if (!_table) {
#if USE_SINGLE_ENTRY
        UString::Rep *key = _singleEntry.key;
        if (key) {
            UString k(key);
            bool fitsInUInt32;
            k.toUInt32(&fitsInUInt32);
            if (fitsInUInt32)
                propertyNames.add(Identifier(key));
        }
#endif
        return;
    }

    int size = _table->size;
    Entry *entries = _table->entries;
    for (int i = 0; i != size; ++i) {
        UString::Rep *key = entries[i].key;
        if (isValid(key)) {
            UString k(key);
            bool fitsInUInt32;
            k.toUInt32(&fitsInUInt32);
            if (fitsInUInt32)
                propertyNames.add(Identifier(key));
        }
    }
}

void JSCSSStyleDeclaration::getOwnPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    JSCSSStyleDeclaration* thisObject = jsCast<JSCSSStyleDeclaration*>(object);
    ASSERT_GC_OBJECT_INHERITS(thisObject, info());

    unsigned length = thisObject->impl()->length();
    for (unsigned i = 0; i < length; ++i)
        propertyNames.add(Identifier::from(exec, i));

    static Identifier* propertyIdentifiers = 0;
    if (!propertyIdentifiers) {
        Vector<String, numCSSProperties> jsPropertyNames;
        for (int id = firstCSSProperty; id < firstCSSProperty + numCSSProperties; ++id)
            jsPropertyNames.append(getJSPropertyName(static_cast<CSSPropertyID>(id)));
        sort(jsPropertyNames.begin(), jsPropertyNames.end(), WTF::codePointCompareLessThan);

        propertyIdentifiers = new Identifier[numCSSProperties];
        for (int i = 0; i < numCSSProperties; ++i)
            propertyIdentifiers[i] = Identifier(exec, jsPropertyNames[i].impl());
    }

    for (int i = 0; i < numCSSProperties; ++i)
        propertyNames.add(propertyIdentifiers[i]);

    Base::getOwnPropertyNames(thisObject, exec, propertyNames, mode);
}

void PropertyMap::getEnumerablePropertyNames(PropertyNameArray& propertyNames) const
{
    if (!_table) {
#if USE_SINGLE_ENTRY
        UString::Rep *key = _singleEntry.key;
        if (key && !(_singleEntry.attributes & DontEnum))
            propertyNames.add(Identifier(key));
#endif
        return;
    }

    // Allocate a buffer to use to sort the keys.
    Vector<Entry*, smallMapThreshold> sortedEnumerables(_table->keyCount);

    // Get pointers to the enumerable entries in the buffer.
    Entry** p = sortedEnumerables.data();
    int size = _table->size;
    Entry* entries = _table->entries;
    for (int i = 0; i != size; ++i) {
        Entry* e = &entries[i];
        if (e->key && !(e->attributes & DontEnum))
            *p++ = e;
    }

    // Sort the entries by index.
    qsort(sortedEnumerables.data(), p - sortedEnumerables.data(), sizeof(Entry*), comparePropertyMapEntryIndices);

    // Put the keys of the sorted entries into the list.
    for (Entry** q = sortedEnumerables.data(); q != p; ++q)
        propertyNames.add(Identifier(q[0]->key));
}

void CInstance::getPropertyNames(ExecState* exec, PropertyNameArray& nameArray)
{
    if (!NP_CLASS_STRUCT_VERSION_HAS_ENUM(_object->_class) || !_object->_class->enumerate)
        return;

    uint32_t count;
    NPIdentifier* identifiers;

    {
        JSLock::DropAllLocks dropAllLocks(SilenceAssertionsOnly);
        ASSERT(globalExceptionString().isNull());
#if PLATFORM(AMIGAOS4)
        bool ok = _object->_class->enumerate(_object, &identifiers, (uint32_t *)&count);
#else
        bool ok = _object->_class->enumerate(_object, &identifiers, &count);
#endif
        moveGlobalExceptionToExecState(exec);
        if (!ok)
            return;
    }

    for (uint32_t i = 0; i < count; i++) {
        IdentifierRep* identifier = static_cast<IdentifierRep*>(identifiers[i]);

        if (identifier->isString())
            nameArray.add(identifierFromNPIdentifier(identifier->string()));
        else
            nameArray.add(Identifier::from(exec, identifier->number()));
    }

    // FIXME: This should really call NPN_MemFree but that's in WebKit
    free(identifiers);
}

void JSArray::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    // FIXME: Filling PropertyNameArray with an identifier for every integer
    // is incredibly inefficient for large arrays. We need a different approach,
    // which almost certainly means a different structure for PropertyNameArray.

    ArrayStorage* storage = m_storage;

    unsigned usedVectorLength = min(storage->m_length, m_vectorLength);
    for (unsigned i = 0; i < usedVectorLength; ++i) {
        if (storage->m_vector[i])
            propertyNames.add(Identifier::from(exec, i));
    }

    if (SparseArrayValueMap* map = storage->m_sparseValueMap) {
        SparseArrayValueMap::iterator end = map->end();
        for (SparseArrayValueMap::iterator it = map->begin(); it != end; ++it)
            propertyNames.add(Identifier::from(exec, it->first));
    }

    if (mode == IncludeDontEnumProperties)
        propertyNames.add(exec->propertyNames().length);

    JSObject::getOwnPropertyNames(exec, propertyNames, mode);
}

void QtInstance::getPropertyNames(ExecState* exec, PropertyNameArray& array)
{
    // This is the enumerable properties, so put:
    // properties
    // dynamic properties
    // slots
    QObject* obj = getObject();
    if (obj) {
        const QMetaObject* meta = obj->metaObject();

        int i;
        for (i = 0; i < meta->propertyCount(); i++) {
            QMetaProperty prop = meta->property(i);
            if (prop.isScriptable())
                array.add(Identifier(exec, prop.name()));
        }

#ifndef QT_NO_PROPERTIES
        QList<QByteArray> dynProps = obj->dynamicPropertyNames();
        foreach (const QByteArray& ba, dynProps)
            array.add(Identifier(exec, ba.constData()));
#endif

        const int methodCount = meta->methodCount();
        for (i = 0; i < methodCount; i++) {
            QMetaMethod method = meta->method(i);
            if (method.access() != QMetaMethod::Private) {
                QByteArray sig = method.methodSignature();
                array.add(Identifier(exec, String(sig.constData(), sig.length())));
            }
        }
    }
}

void QtPixmapInstance::getPropertyNames(ExecState*exec, PropertyNameArray& arr)
{
    arr.add(Identifier(exec, UString(QtPixmapToDataUrlMethod::name())));
    arr.add(Identifier(exec, UString(QtPixmapAssignToElementMethod::name())));
    arr.add(Identifier(exec, UString(QtPixmapToStringMethod::name())));
    arr.add(Identifier(exec, UString(QtPixmapWidthField::name())));
    arr.add(Identifier(exec, UString(QtPixmapHeightField::name())));
}

void Structure::getPropertyNames(PropertyNameArray& propertyNames, EnumerationMode mode)
{
    materializePropertyMapIfNecessary();
    if (!m_propertyTable)
        return;

    if (m_propertyTable->keyCount < tinyMapThreshold) {
        PropertyMapEntry* a[tinyMapThreshold];
        int i = 0;
        unsigned entryCount = m_propertyTable->keyCount + m_propertyTable->deletedSentinelCount;
        for (unsigned k = 1; k <= entryCount; k++) {
            ASSERT(m_hasNonEnumerableProperties || !(m_propertyTable->entries()[k].attributes & DontEnum));
            if (m_propertyTable->entries()[k].key && (!(m_propertyTable->entries()[k].attributes & DontEnum) || (mode == IncludeDontEnumProperties))) {
                PropertyMapEntry* value = &m_propertyTable->entries()[k];
                int j;
                for (j = i - 1; j >= 0 && a[j]->index > value->index; --j)
                    a[j + 1] = a[j];
                a[j + 1] = value;
                ++i;
            }
        }
        if (!propertyNames.size()) {
            for (int k = 0; k < i; ++k)
                propertyNames.addKnownUnique(a[k]->key);
        } else {
            for (int k = 0; k < i; ++k)
                propertyNames.add(a[k]->key);
        }

        return;
    }

    // Allocate a buffer to use to sort the keys.
    Vector<PropertyMapEntry*, smallMapThreshold> sortedEnumerables(m_propertyTable->keyCount);

    // Get pointers to the enumerable entries in the buffer.
    PropertyMapEntry** p = sortedEnumerables.data();
    unsigned entryCount = m_propertyTable->keyCount + m_propertyTable->deletedSentinelCount;
    for (unsigned i = 1; i <= entryCount; i++) {
        if (m_propertyTable->entries()[i].key && (!(m_propertyTable->entries()[i].attributes & DontEnum) || (mode == IncludeDontEnumProperties)))
            *p++ = &m_propertyTable->entries()[i];
    }

    size_t enumerableCount = p - sortedEnumerables.data();
    // Sort the entries by index.
    qsort(sortedEnumerables.data(), enumerableCount, sizeof(PropertyMapEntry*), comparePropertyMapEntryIndices);
    sortedEnumerables.resize(enumerableCount);

    // Put the keys of the sorted entries into the list.
    if (!propertyNames.size()) {
        for (size_t i = 0; i < sortedEnumerables.size(); ++i)
            propertyNames.addKnownUnique(sortedEnumerables[i]->key);
    } else {
        for (size_t i = 0; i < sortedEnumerables.size(); ++i)
            propertyNames.add(sortedEnumerables[i]->key);
    }
}

void StringObject::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    int size = internalValue()->length();
    for (int i = 0; i < size; ++i)
        propertyNames.add(Identifier(exec, UString::from(i)));
    if (mode == IncludeDontEnumProperties)
        propertyNames.add(exec->propertyNames().length);
    return JSObject::getOwnPropertyNames(exec, propertyNames, mode);
}

void JSTestEventTarget::getOwnPropertyNames(JSObject* object, ExecState* state, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    auto* thisObject = jsCast<JSTestEventTarget*>(object);
    ASSERT_GC_OBJECT_INHERITS(object, info());
    for (unsigned i = 0, count = thisObject->wrapped().length(); i < count; ++i)
        propertyNames.add(Identifier::from(state, i));
    for (auto& propertyName : thisObject->wrapped().supportedPropertyNames())
        propertyNames.add(Identifier::fromString(state, propertyName));
    JSObject::getOwnPropertyNames(object, state, propertyNames, mode);
}

void AJFunction::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    if (!isHostFunction() && (mode == IncludeDontEnumProperties)) {
        propertyNames.add(exec->propertyNames().arguments);
        propertyNames.add(exec->propertyNames().callee);
        propertyNames.add(exec->propertyNames().caller);
        propertyNames.add(exec->propertyNames().length);
    }
    Base::getOwnPropertyNames(exec, propertyNames, mode);
}

void StringObject::getOwnPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    StringObject* thisObject = jsCast<StringObject*>(object);
    int size = thisObject->internalValue()->length();
    for (int i = 0; i < size; ++i)
        propertyNames.add(Identifier(exec, String::number(i)));
    if (mode == IncludeDontEnumProperties)
        propertyNames.add(exec->propertyNames().length);
    return JSObject::getOwnPropertyNames(thisObject, exec, propertyNames, mode);
}

void RuntimeArray::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    unsigned length = getLength();
    for (unsigned i = 0; i < length; ++i)
        propertyNames.add(Identifier::from(exec, i));

    if (mode == IncludeDontEnumProperties)
        propertyNames.add(exec->propertyNames().length);

    JSObject::getOwnPropertyNames(exec, propertyNames, mode);
}

void Arguments::getOwnPropertyNames(ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    for (unsigned i = 0; i < d->numArguments; ++i) {
        if (!d->deletedArguments || !d->deletedArguments[i])
            propertyNames.add(Identifier(exec, UString::number(i)));
    }
    if (mode == IncludeDontEnumProperties) {
        propertyNames.add(exec->propertyNames().callee);
        propertyNames.add(exec->propertyNames().length);
    }
    JSObject::getOwnPropertyNames(exec, propertyNames, mode);
}