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// Copyright (C) 2016 Jochen Becher
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#pragma once
#include "archivebasics.h"
#include "tag.h"
#include "baseclass.h"
#include "attribute.h"
#include "reference.h"
#include "impl/savingrefmap.h"
#include <QXmlStreamWriter>
#include <exception>
namespace qark {
class QXmlOutArchive : public ArchiveBasics
{
public:
class UnsupportedForwardReference : public std::exception
{
};
class DanglingReferences : public std::exception
{
};
static const bool inArchive = false;
static const bool outArchive = true;
QXmlOutArchive(QXmlStreamWriter &stream)
: m_stream(stream)
{
}
~QXmlOutArchive()
{
}
template<typename T>
void write(T *p)
{
if (!m_savingRefMap.hasDefinedRef(p))
throw UnsupportedForwardReference();
write(m_savingRefMap.ref(p).get());
}
#define QARK_WRITENUMBER(T) \
void write(T i) \
{ \
m_stream.writeCharacters(QString::number(i)); \
}
QARK_WRITENUMBER(char)
QARK_WRITENUMBER(signed char)
QARK_WRITENUMBER(unsigned char)
QARK_WRITENUMBER(short int)
QARK_WRITENUMBER(unsigned short int)
QARK_WRITENUMBER(int)
QARK_WRITENUMBER(unsigned int)
QARK_WRITENUMBER(long int)
QARK_WRITENUMBER(unsigned long int)
QARK_WRITENUMBER(long long int)
QARK_WRITENUMBER(unsigned long long int)
QARK_WRITENUMBER(float)
QARK_WRITENUMBER(double)
#undef QARK_WRITENUMBER
void write(bool b)
{
m_stream.writeCharacters(QLatin1String(b ? "true" : "false"));
}
void write(const QString &s)
{
m_stream.writeCharacters(s);
}
void beginDocument()
{
m_stream.writeStartDocument();
}
void endDocument()
{
m_stream.writeEndDocument();
if (m_savingRefMap.countDanglingReferences() > 0)
throw DanglingReferences();
}
void beginElement(const Tag &tag)
{
m_stream.writeStartElement(tag.qualifiedName());
}
template<class T>
void beginElement(const Object<T> &object)
{
m_stream.writeStartElement(object.qualifiedName());
// TODO implement key attribute
// Currently qmodel files do not use references at all
// so writing reference keys are not needed. If this
// changes keys should be implemented as a generic
// concept getting key from object (e.g. with a function
// registered per type in typeregistry)
}
void endElement(const End &)
{
m_stream.writeEndElement();
}
template<class T, class U>
void beginBase(const Base<T, U> &base)
{
m_stream.writeStartElement(base.qualifiedName());
}
template<class T, class U>
void endBase(const Base<T, U> &)
{
m_stream.writeEndElement();
}
template<class T>
void beginAttribute(const Attr<T> &attr)
{
m_stream.writeStartElement(attr.qualifiedName());
}
template<class T>
void endAttribute(const Attr<T> &)
{
m_stream.writeEndElement();
}
template<class U, typename T>
void beginAttribute(const GetterAttr<U, T> &attr)
{
m_stream.writeStartElement(attr.qualifiedName());
}
template<class U, typename T>
void endAttribute(const GetterAttr<U, T> &)
{
m_stream.writeEndElement();
}
template<class U, typename T, typename V>
void beginAttribute(const GetterSetterAttr<U, T, V> &attr)
{
m_stream.writeStartElement(attr.qualifiedName());
}
template<class U, typename T, typename V>
void endAttribute(const GetterSetterAttr<U, T, V> &)
{
m_stream.writeEndElement();
}
template<class U, typename T>
void beginAttribute(const GetFuncAttr<U, T> &attr)
{
m_stream.writeStartElement(attr.qualifiedName());
}
template<class U, typename T>
void endAttribute(const GetFuncAttr<U, T> &)
{
m_stream.writeEndElement();
}
template<class U, typename T, typename V>
void beginAttribute(const GetSetFuncAttr<U, T, V> &attr)
{
m_stream.writeStartElement(attr.qualifiedName());
}
template<class U, typename T, typename V>
void endAttribute(const GetSetFuncAttr<U, T, V> &)
{
m_stream.writeEndElement();
}
template<class T>
void beginReference(const Ref<T> &ref)
{
m_stream.writeStartElement(ref.qualifiedName());
m_isNextPointerAReference = true;
}
template<class T>
void endReference(const Ref<T> &)
{
m_isNextPointerAReference = false;
m_stream.writeEndElement();
}
template<class U, typename T>
void beginReference(const GetterRef<U, T> &ref)
{
m_stream.writeStartElement(ref.qualifiedName());
m_isNextPointerAReference = true;
}
template<class U, typename T>
void endReference(const GetterRef<U, T> &)
{
m_isNextPointerAReference = false;
m_stream.writeEndElement();
}
template<class U, typename T, typename V>
void beginReference(const GetterSetterRef<U, T, V> &ref)
{
m_stream.writeStartElement(ref.qualifiedName());
m_isNextPointerAReference = true;
}
template<class U, typename T, typename V>
void endReference(const GetterSetterRef<U, T, V> &)
{
m_isNextPointerAReference = false;
m_stream.writeEndElement();
}
template<class U, typename T>
void beginReference(const GetFuncRef<U, T> &ref)
{
m_stream.writeStartElement(ref.qualifiedName());
m_isNextPointerAReference = true;
}
template<class U, typename T>
void endReference(const GetFuncRef<U, T> &)
{
m_isNextPointerAReference = false;
m_stream.writeEndElement();
}
template<class U, typename T, typename V>
void beginReference(const GetSetFuncRef<U, T, V> &ref)
{
m_stream.writeStartElement(ref.qualifiedName());
m_isNextPointerAReference = true;
}
template<class U, typename T, typename V>
void endReference(const GetSetFuncRef<U, T, V> &)
{
m_isNextPointerAReference = false;
m_stream.writeEndElement();
}
template<typename T>
bool isReference(T *p)
{
return m_isNextPointerAReference || m_savingRefMap.hasDefinedRef(p);
}
void beginNullPointer()
{
m_stream.writeStartElement(QLatin1String("null"));
}
void endNullPointer()
{
m_stream.writeEndElement();
}
void beginPointer()
{
m_stream.writeStartElement(QLatin1String("reference"));
}
void endPointer()
{
m_stream.writeEndElement();
}
void beginInstance()
{
m_stream.writeStartElement(QLatin1String("instance"));
}
void beginInstance(const QString &typeUid)
{
m_stream.writeStartElement(QLatin1String("instance"));
m_stream.writeAttribute(QLatin1String("type"), typeUid);
}
void endInstance()
{
m_stream.writeEndElement();
}
private:
QXmlStreamWriter &m_stream;
impl::SavingRefMap m_savingRefMap;
bool m_isNextPointerAReference = false;
};
} // namespace qark
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