C++ Ptr::allocateBinding方法代码示例

void ComputedNamespaceConstructor::evaluateToSequenceReceiver(const DynamicContext::Ptr &context) const
{
    const Item prefixItem(m_operand1->evaluateSingleton(context));
    const QString prefix(prefixItem ? prefixItem.stringValue() : QString());

    const Item namespaceItem(m_operand2->evaluateSingleton(context));
    const QString namespaceURI(namespaceItem ? namespaceItem.stringValue() : QString());

    if(namespaceURI.isEmpty())
    {
        context->error(QtXmlPatterns::tr("In a namespace constructor, the value for a namespace cannot be an empty string."),
                       ReportContext::XTDE0930,
                       this);
    }

    /* One optimization could be to store a pointer to
     * the name pool as a member in order to avoid the virtual call(s). */
    const NamePool::Ptr np(context->namePool());

    if(!prefix.isEmpty() && !QXmlUtils::isNCName(prefix))
    {
        context->error(QtXmlPatterns::tr("The prefix must be a valid %1, which %2 is not.")
                                        .arg(formatType(np, BuiltinTypes::xsNCName),
                                             formatKeyword(prefix)),
                       ReportContext::XTDE0920,
                       this);
    }
    const QXmlName binding(np->allocateBinding(prefix, namespaceURI));

    AnyURI::toQUrl<ReportContext::XTDE0905, DynamicContext::Ptr>(namespaceURI,
                                                                 context,
                                                                 this);

    if(binding.prefix() == StandardPrefixes::xmlns)
    {
        context->error(QtXmlPatterns::tr("The prefix %1 cannot be bound.")
                                        .arg(formatKeyword(prefix)),
                       ReportContext::XTDE0920,
                       this);
    }

    if((binding.prefix() == StandardPrefixes::xml && binding.namespaceURI() != StandardNamespaces::xml)
       ||
       (binding.prefix() != StandardPrefixes::xml && binding.namespaceURI() == StandardNamespaces::xml))
    {
        context->error(QtXmlPatterns::tr("Only the prefix %1 can be bound to %2 and vice versa.")
                                        .arg(formatKeyword(prefix), formatKeyword(namespaceURI)),
                       ReportContext::XTDE0925,
                       this);
    }

     context->outputReceiver()->namespaceBinding(binding);
}

bool AccelTreeResourceLoader::streamToReceiver(QIODevice *const dev,
                                               AccelTreeBuilder<true> *const receiver,
                                               const NamePool::Ptr &np,
                                               const ReportContext::Ptr &context,
                                               const QUrl &uri)
{
    Q_ASSERT(dev);
    Q_ASSERT(receiver);
    Q_ASSERT(np);

    QXmlStreamReader reader(dev);

    /* Optimize: change NamePool to take QStringRef such that we don't have to call toString() below. That
     * will save us a gazillion of temporary QStrings. */

    while(!reader.atEnd())
    {
        reader.readNext();

        switch(reader.tokenType())
        {
            case QXmlStreamReader::StartElement:
            {
                /* Send the name. */
                receiver->startElement(np->allocateQName(reader.namespaceUri().toString(), reader.name().toString(),
                                                         reader.prefix().toString()), reader.lineNumber(), reader.columnNumber());

                /* Send namespace declarations. */
                const QXmlStreamNamespaceDeclarations &nss = reader.namespaceDeclarations();

                /* The far most common case, is for it to be empty. */
                if(!nss.isEmpty())
                {
                    const int len = nss.size();

                    for(int i = 0; i < len; ++i)
                    {
                        const QXmlStreamNamespaceDeclaration &ns = nss.at(i);
                        receiver->namespaceBinding(np->allocateBinding(ns.prefix().toString(), ns.namespaceUri().toString()));
                    }
                }

                /* Send attributes. */
                const QXmlStreamAttributes &attrs = reader.attributes();
                const int len = attrs.size();

                for(int i = 0; i < len; ++i)
                {
                    const QXmlStreamAttribute &attr = attrs.at(i);

                    receiver->attribute(np->allocateQName(attr.namespaceUri().toString(), attr.name().toString(),
                                                          attr.prefix().toString()),
                                        attr.value());
                }

                continue;
            }
            case QXmlStreamReader::EndElement:
            {
                receiver->endElement();
                continue;
            }
            case QXmlStreamReader::Characters:
            {
                if(reader.isWhitespace())
                    receiver->whitespaceOnly(reader.text());
                else
                    receiver->characters(reader.text());

                continue;
            }
            case QXmlStreamReader::Comment:
            {
                receiver->comment(reader.text().toString());
                continue;
            }
            case QXmlStreamReader::ProcessingInstruction:
            {
                receiver->processingInstruction(np->allocateQName(QString(), reader.processingInstructionTarget().toString()),
                                                reader.processingInstructionData().toString());
                continue;
            }
            case QXmlStreamReader::StartDocument:
            {
                receiver->startDocument();
                continue;
            }
            case QXmlStreamReader::EndDocument:
            {
                receiver->endDocument();
                continue;
            }
            case QXmlStreamReader::EntityReference:
            /* Fallthrough. */
            case QXmlStreamReader::DTD:
            {
                /* We just ignore any DTD and entity references. */
                continue;
            }
            case QXmlStreamReader::Invalid:
//.........这里部分代码省略.........