/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtXmlPatterns module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser ** General Public License version 3 as published by the Free Software ** Foundation and appearing in the file LICENSE.LGPL3 included in the ** packaging of this file. Please review the following information to ** ensure the GNU Lesser General Public License version 3 requirements ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU ** General Public License version 2.0 or (at your option) the GNU General ** Public license version 3 or any later version approved by the KDE Free ** Qt Foundation. The licenses are as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 ** included in the packaging of this file. Please review the following ** information to ensure the GNU General Public License requirements will ** be met: https://www.gnu.org/licenses/gpl-2.0.html and ** https://www.gnu.org/licenses/gpl-3.0.html. ** ** $QT_END_LICENSE$ ** ****************************************************************************/ // // W A R N I N G // ------------- // // This file is not part of the Qt API. It exists purely as an // implementation detail. This header file may change from version to // version without notice, or even be removed. // // We mean it. #ifndef QXMLSERIALIZER_P_H #define QXMLSERIALIZER_P_H #include #include #include #include #include #include #include #include QT_BEGIN_NAMESPACE class QXmlSerializerPrivate : public QAbstractXmlReceiverPrivate { public: QXmlSerializerPrivate(const QXmlQuery &q, QIODevice *outputDevice); QStack > hasClosedElement; bool isPreviousAtomic; QXmlSerializer::State state; const QPatternist::NamePool::Ptr np; /** * This member worries me a bit. We never use it but nevertheless * it is pushed and pops linear to startElement() and endElement(). * An optimization would be to at least merge it with hasClosedElement, * but even better to push it on demand. That is, namespaceBinding() * pushes it up to the tree depth first when it is needed. */ QStack > namespaces; QIODevice * device; const QTextCodec * codec; QTextCodec::ConverterState converterState; /** * Name cache. Since encoding QStrings are rather expensive * operations to do, and we on top of that would have to do * it each time a name appears, we here map names to their * encoded equivalents. * * This means that when writing out large documents, the serialization * of names after a while is reduced to a hash lookup and passing an * existing byte array. * * We use QXmlName::Code as key as opposed to merely QName, because the * prefix is of significance. */ QHash nameCache; const QXmlQuery query; inline void write(const char c); private: enum Constants { EstimatedTreeDepth = 10, /** * We use a high count to avoid rehashing. We can afford it since we * only allocate one hash for this. */ EstimatedNameCount = 60 }; }; void QXmlSerializerPrivate::write(const char c) { device->putChar(c); } QT_END_NAMESPACE #endif