blob: 9cf753a3f126ec304427139aa28e47f1cb38a2b5 [file] [log] [blame]
/****************************************************************************
**
** Copyright (C) 2020 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the tools applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** 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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <qbytearray.h>
#include <qcommandlineparser.h>
#include <qcoreapplication.h>
#include <qdebug.h>
#include <qfile.h>
#include <qfileinfo.h>
#include <qloggingcategory.h>
#include <qstring.h>
#include <qstringlist.h>
#include <qtextstream.h>
#include <qset.h>
#include <qdbusmetatype.h>
#include <private/qdbusintrospection_p.h>
#include <stdio.h>
#include <stdlib.h>
#define PROGRAMNAME "qdbusxml2cpp"
#define PROGRAMVERSION "0.8"
#define PROGRAMCOPYRIGHT "Copyright (C) 2020 The Qt Company Ltd."
#define ANNOTATION_NO_WAIT "org.freedesktop.DBus.Method.NoReply"
static QString globalClassName;
static QString parentClassName;
static QString proxyFile;
static QString adaptorFile;
static QString inputFile;
static bool skipNamespaces;
static bool verbose;
static bool includeMocs;
static QString commandLine;
static QStringList includes;
static QStringList wantedInterfaces;
static const char includeList[] =
"#include <QtCore/QByteArray>\n"
"#include <QtCore/QList>\n"
"#include <QtCore/QMap>\n"
"#include <QtCore/QString>\n"
"#include <QtCore/QStringList>\n"
"#include <QtCore/QVariant>\n";
static const char forwardDeclarations[] =
"QT_BEGIN_NAMESPACE\n"
"class QByteArray;\n"
"template<class T> class QList;\n"
"template<class Key, class Value> class QMap;\n"
"class QString;\n"
"class QStringList;\n"
"class QVariant;\n"
"QT_END_NAMESPACE\n";
static QDBusIntrospection::Interfaces readInput()
{
QFile input(inputFile);
if (inputFile.isEmpty() || inputFile == QLatin1String("-")) {
input.open(stdin, QIODevice::ReadOnly);
} else {
input.open(QIODevice::ReadOnly);
}
QByteArray data = input.readAll();
// check if the input is already XML
data = data.trimmed();
if (data.startsWith("<!DOCTYPE ") || data.startsWith("<?xml") ||
data.startsWith("<node") || data.startsWith("<interface"))
// already XML
return QDBusIntrospection::parseInterfaces(QString::fromUtf8(data));
fprintf(stderr, "%s: Cannot process input: '%s'. Stop.\n",
PROGRAMNAME, qPrintable(inputFile));
exit(1);
}
static void cleanInterfaces(QDBusIntrospection::Interfaces &interfaces)
{
if (!wantedInterfaces.isEmpty()) {
QDBusIntrospection::Interfaces::Iterator it = interfaces.begin();
while (it != interfaces.end())
if (!wantedInterfaces.contains(it.key()))
it = interfaces.erase(it);
else
++it;
}
}
// produce a header name from the file name
static QString header(const QString &name)
{
QStringList parts = name.split(QLatin1Char(':'));
QString retval = parts.first();
if (retval.isEmpty() || retval == QLatin1String("-"))
return retval;
if (!retval.endsWith(QLatin1String(".h")) && !retval.endsWith(QLatin1String(".cpp")) &&
!retval.endsWith(QLatin1String(".cc")))
retval.append(QLatin1String(".h"));
return retval;
}
// produce a cpp name from the file name
static QString cpp(const QString &name)
{
QStringList parts = name.split(QLatin1Char(':'));
QString retval = parts.last();
if (retval.isEmpty() || retval == QLatin1String("-"))
return retval;
if (!retval.endsWith(QLatin1String(".h")) && !retval.endsWith(QLatin1String(".cpp")) &&
!retval.endsWith(QLatin1String(".cc")))
retval.append(QLatin1String(".cpp"));
return retval;
}
// produce a moc name from the file name
static QString moc(const QString &name)
{
QString retval = header(name);
if (retval.isEmpty())
return retval;
retval.truncate(retval.length() - 1); // drop the h in .h
retval += QLatin1String("moc");
return retval;
}
static QTextStream &writeHeader(QTextStream &ts, bool changesWillBeLost)
{
ts << "/*" << Qt::endl
<< " * This file was generated by " PROGRAMNAME " version " PROGRAMVERSION << Qt::endl
<< " * Command line was: " << commandLine << Qt::endl
<< " *" << Qt::endl
<< " * " PROGRAMNAME " is " PROGRAMCOPYRIGHT << Qt::endl
<< " *" << Qt::endl
<< " * This is an auto-generated file." << Qt::endl;
if (changesWillBeLost)
ts << " * Do not edit! All changes made to it will be lost." << Qt::endl;
else
ts << " * This file may have been hand-edited. Look for HAND-EDIT comments" << Qt::endl
<< " * before re-generating it." << Qt::endl;
ts << " */" << Qt::endl
<< Qt::endl;
return ts;
}
enum ClassType { Proxy, Adaptor };
static QString classNameForInterface(const QString &interface, ClassType classType)
{
if (!globalClassName.isEmpty())
return globalClassName;
const auto parts = interface.splitRef(QLatin1Char('.'));
QString retval;
if (classType == Proxy) {
for (const auto &part : parts)
retval += part[0].toUpper() + part.mid(1);
} else {
retval += parts.last()[0].toUpper() + parts.last().mid(1);
}
if (classType == Proxy)
retval += QLatin1String("Interface");
else
retval += QLatin1String("Adaptor");
return retval;
}
// ### Qt6 Remove the two isSignal ifs
// They are only here because before signal arguments where previously searched as "In" so to maintain compatibility
// we first search for "Out" and if not found we search for "In"
static QByteArray qtTypeName(const QString &signature, const QDBusIntrospection::Annotations &annotations, int paramId = -1, const char *direction = "Out", bool isSignal = false)
{
int type = QDBusMetaType::signatureToType(signature.toLatin1());
if (type == QVariant::Invalid) {
QString annotationName = QString::fromLatin1("org.qtproject.QtDBus.QtTypeName");
if (paramId >= 0)
annotationName += QString::fromLatin1(".%1%2").arg(QLatin1String(direction)).arg(paramId);
QString qttype = annotations.value(annotationName);
if (!qttype.isEmpty())
return std::move(qttype).toLatin1();
QString oldAnnotationName = QString::fromLatin1("com.trolltech.QtDBus.QtTypeName");
if (paramId >= 0)
oldAnnotationName += QString::fromLatin1(".%1%2").arg(QLatin1String(direction)).arg(paramId);
qttype = annotations.value(oldAnnotationName);
if (qttype.isEmpty()) {
if (!isSignal || qstrcmp(direction, "Out") == 0) {
fprintf(stderr, "%s: Got unknown type `%s' processing '%s'\n",
PROGRAMNAME, qPrintable(signature), qPrintable(inputFile));
fprintf(stderr, "You should add <annotation name=\"%s\" value=\"<type>\"/> to the XML description\n",
qPrintable(annotationName));
}
if (isSignal)
return qtTypeName(signature, annotations, paramId, "In", isSignal);
exit(1);
}
fprintf(stderr, "%s: Warning: deprecated annotation '%s' found while processing '%s'; "
"suggest updating to '%s'\n",
PROGRAMNAME, qPrintable(oldAnnotationName), qPrintable(inputFile),
qPrintable(annotationName));
return std::move(qttype).toLatin1();
}
return QVariant::typeToName(QVariant::Type(type));
}
static QString nonConstRefArg(const QByteArray &arg)
{
return QLatin1String(arg + " &");
}
static QString templateArg(const QByteArray &arg)
{
if (!arg.endsWith('>'))
return QLatin1String(arg);
return QLatin1String(arg + ' ');
}
static QString constRefArg(const QByteArray &arg)
{
if (!arg.startsWith('Q'))
return QLatin1String(arg + ' ');
else
return QString( QLatin1String("const %1 &") ).arg( QLatin1String(arg) );
}
static QStringList makeArgNames(const QDBusIntrospection::Arguments &inputArgs,
const QDBusIntrospection::Arguments &outputArgs =
QDBusIntrospection::Arguments())
{
QStringList retval;
const int numInputArgs = inputArgs.count();
const int numOutputArgs = outputArgs.count();
retval.reserve(numInputArgs + numOutputArgs);
for (int i = 0; i < numInputArgs; ++i) {
const QDBusIntrospection::Argument &arg = inputArgs.at(i);
QString name = arg.name;
if (name.isEmpty())
name = QString( QLatin1String("in%1") ).arg(i);
else
name.replace(QLatin1Char('-'), QLatin1Char('_'));
while (retval.contains(name))
name += QLatin1String("_");
retval << name;
}
for (int i = 0; i < numOutputArgs; ++i) {
const QDBusIntrospection::Argument &arg = outputArgs.at(i);
QString name = arg.name;
if (name.isEmpty())
name = QString( QLatin1String("out%1") ).arg(i);
else
name.replace(QLatin1Char('-'), QLatin1Char('_'));
while (retval.contains(name))
name += QLatin1String("_");
retval << name;
}
return retval;
}
static void writeArgList(QTextStream &ts, const QStringList &argNames,
const QDBusIntrospection::Annotations &annotations,
const QDBusIntrospection::Arguments &inputArgs,
const QDBusIntrospection::Arguments &outputArgs = QDBusIntrospection::Arguments())
{
// input args:
bool first = true;
int argPos = 0;
for (int i = 0; i < inputArgs.count(); ++i) {
const QDBusIntrospection::Argument &arg = inputArgs.at(i);
QString type = constRefArg(qtTypeName(arg.type, annotations, i, "In"));
if (!first)
ts << ", ";
ts << type << argNames.at(argPos++);
first = false;
}
argPos++;
// output args
// yes, starting from 1
for (int i = 1; i < outputArgs.count(); ++i) {
const QDBusIntrospection::Argument &arg = outputArgs.at(i);
if (!first)
ts << ", ";
ts << nonConstRefArg(qtTypeName(arg.type, annotations, i, "Out"))
<< argNames.at(argPos++);
first = false;
}
}
static void writeSignalArgList(QTextStream &ts, const QStringList &argNames,
const QDBusIntrospection::Annotations &annotations,
const QDBusIntrospection::Arguments &outputArgs)
{
bool first = true;
int argPos = 0;
for (int i = 0; i < outputArgs.count(); ++i) {
const QDBusIntrospection::Argument &arg = outputArgs.at(i);
QString type = constRefArg(qtTypeName(arg.type, annotations, i, "Out", true /* isSignal */));
if (!first)
ts << ", ";
ts << type << argNames.at(argPos++);
first = false;
}
}
static QString propertyGetter(const QDBusIntrospection::Property &property)
{
QString getter = property.annotations.value(QLatin1String("org.qtproject.QtDBus.PropertyGetter"));
if (!getter.isEmpty())
return getter;
getter = property.annotations.value(QLatin1String("com.trolltech.QtDBus.propertyGetter"));
if (!getter.isEmpty()) {
fprintf(stderr, "%s: Warning: deprecated annotation 'com.trolltech.QtDBus.propertyGetter' found"
" while processing '%s';"
" suggest updating to 'org.qtproject.QtDBus.PropertyGetter'\n",
PROGRAMNAME, qPrintable(inputFile));
return getter;
}
getter = property.name;
getter[0] = getter[0].toLower();
return getter;
}
static QString propertySetter(const QDBusIntrospection::Property &property)
{
QString setter = property.annotations.value(QLatin1String("org.qtproject.QtDBus.PropertySetter"));
if (!setter.isEmpty())
return setter;
setter = property.annotations.value(QLatin1String("com.trolltech.QtDBus.propertySetter"));
if (!setter.isEmpty()) {
fprintf(stderr, "%s: Warning: deprecated annotation 'com.trolltech.QtDBus.propertySetter' found"
" while processing '%s';"
" suggest updating to 'org.qtproject.QtDBus.PropertySetter'\n",
PROGRAMNAME, qPrintable(inputFile));
return setter;
}
setter = QLatin1String("set") + property.name;
setter[3] = setter[3].toUpper();
return setter;
}
static QString methodName(const QDBusIntrospection::Method &method)
{
QString name = method.annotations.value(QStringLiteral("org.qtproject.QtDBus.MethodName"));
if (!name.isEmpty())
return name;
return method.name;
}
static QString stringify(const QString &data)
{
QString retval;
int i;
for (i = 0; i < data.length(); ++i) {
retval += QLatin1Char('\"');
for ( ; i < data.length() && data[i] != QLatin1Char('\n') && data[i] != QLatin1Char('\r'); ++i)
if (data[i] == QLatin1Char('\"'))
retval += QLatin1String("\\\"");
else
retval += data[i];
if (i+1 < data.length() && data[i] == QLatin1Char('\r') && data[i+1] == QLatin1Char('\n'))
i++;
retval += QLatin1String("\\n\"\n");
}
return retval;
}
static bool openFile(const QString &fileName, QFile &file)
{
if (fileName.isEmpty())
return false;
bool isOk = false;
if (fileName == QLatin1String("-")) {
isOk = file.open(stdout, QIODevice::WriteOnly | QIODevice::Text);
} else {
file.setFileName(fileName);
isOk = file.open(QIODevice::WriteOnly | QIODevice::Truncate | QIODevice::Text);
}
if (!isOk)
fprintf(stderr, "%s: Unable to open '%s': %s\n",
PROGRAMNAME, qPrintable(fileName), qPrintable(file.errorString()));
return isOk;
}
static void writeProxy(const QString &filename, const QDBusIntrospection::Interfaces &interfaces)
{
// open the file
QString headerName = header(filename);
QByteArray headerData;
QTextStream hs(&headerData);
QString cppName = cpp(filename);
QByteArray cppData;
QTextStream cs(&cppData);
// write the header:
writeHeader(hs, true);
if (cppName != headerName)
writeHeader(cs, false);
// include guards:
QString includeGuard;
if (!headerName.isEmpty() && headerName != QLatin1String("-")) {
includeGuard = headerName.toUpper().replace(QLatin1Char('.'), QLatin1Char('_'));
int pos = includeGuard.lastIndexOf(QLatin1Char('/'));
if (pos != -1)
includeGuard = includeGuard.mid(pos + 1);
} else {
includeGuard = QLatin1String("QDBUSXML2CPP_PROXY");
}
includeGuard = QString(QLatin1String("%1"))
.arg(includeGuard);
hs << "#ifndef " << includeGuard << Qt::endl
<< "#define " << includeGuard << Qt::endl
<< Qt::endl;
// include our stuff:
hs << "#include <QtCore/QObject>" << Qt::endl
<< includeList
<< "#include <QtDBus/QtDBus>" << Qt::endl;
for (const QString &include : qAsConst(includes)) {
hs << "#include \"" << include << "\"" << Qt::endl;
if (headerName.isEmpty())
cs << "#include \"" << include << "\"" << Qt::endl;
}
hs << Qt::endl;
if (cppName != headerName) {
if (!headerName.isEmpty() && headerName != QLatin1String("-"))
cs << "#include \"" << headerName << "\"" << Qt::endl << Qt::endl;
}
for (const QDBusIntrospection::Interface *interface : interfaces) {
QString className = classNameForInterface(interface->name, Proxy);
// comment:
hs << "/*" << Qt::endl
<< " * Proxy class for interface " << interface->name << Qt::endl
<< " */" << Qt::endl;
cs << "/*" << Qt::endl
<< " * Implementation of interface class " << className << Qt::endl
<< " */" << Qt::endl
<< Qt::endl;
// class header:
hs << "class " << className << ": public QDBusAbstractInterface" << Qt::endl
<< "{" << Qt::endl
<< " Q_OBJECT" << Qt::endl;
// the interface name
hs << "public:" << Qt::endl
<< " static inline const char *staticInterfaceName()" << Qt::endl
<< " { return \"" << interface->name << "\"; }" << Qt::endl
<< Qt::endl;
// constructors/destructors:
hs << "public:" << Qt::endl
<< " " << className << "(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent = nullptr);" << Qt::endl
<< Qt::endl
<< " ~" << className << "();" << Qt::endl
<< Qt::endl;
cs << className << "::" << className << "(const QString &service, const QString &path, const QDBusConnection &connection, QObject *parent)" << Qt::endl
<< " : QDBusAbstractInterface(service, path, staticInterfaceName(), connection, parent)" << Qt::endl
<< "{" << Qt::endl
<< "}" << Qt::endl
<< Qt::endl
<< className << "::~" << className << "()" << Qt::endl
<< "{" << Qt::endl
<< "}" << Qt::endl
<< Qt::endl;
// properties:
for (const QDBusIntrospection::Property &property : interface->properties) {
QByteArray type = qtTypeName(property.type, property.annotations);
QString getter = propertyGetter(property);
QString setter = propertySetter(property);
hs << " Q_PROPERTY(" << type << " " << property.name;
// getter:
if (property.access != QDBusIntrospection::Property::Write)
// it's readble
hs << " READ " << getter;
// setter
if (property.access != QDBusIntrospection::Property::Read)
// it's writeable
hs << " WRITE " << setter;
hs << ")" << Qt::endl;
// getter:
if (property.access != QDBusIntrospection::Property::Write) {
hs << " inline " << type << " " << getter << "() const" << Qt::endl
<< " { return qvariant_cast< " << type << " >(property(\""
<< property.name << "\")); }" << Qt::endl;
}
// setter:
if (property.access != QDBusIntrospection::Property::Read) {
hs << " inline void " << setter << "(" << constRefArg(type) << "value)" << Qt::endl
<< " { setProperty(\"" << property.name
<< "\", QVariant::fromValue(value)); }" << Qt::endl;
}
hs << Qt::endl;
}
// methods:
hs << "public Q_SLOTS: // METHODS" << Qt::endl;
for (const QDBusIntrospection::Method &method : interface->methods) {
bool isDeprecated = method.annotations.value(QLatin1String("org.freedesktop.DBus.Deprecated")) == QLatin1String("true");
bool isNoReply =
method.annotations.value(QLatin1String(ANNOTATION_NO_WAIT)) == QLatin1String("true");
if (isNoReply && !method.outputArgs.isEmpty()) {
fprintf(stderr, "%s: warning while processing '%s': method %s in interface %s is marked 'no-reply' but has output arguments.\n",
PROGRAMNAME, qPrintable(inputFile), qPrintable(method.name),
qPrintable(interface->name));
continue;
}
hs << " inline "
<< (isDeprecated ? "Q_DECL_DEPRECATED " : "");
if (isNoReply) {
hs << "Q_NOREPLY void ";
} else {
hs << "QDBusPendingReply<";
for (int i = 0; i < method.outputArgs.count(); ++i)
hs << (i > 0 ? ", " : "")
<< templateArg(qtTypeName(method.outputArgs.at(i).type, method.annotations, i, "Out"));
hs << "> ";
}
hs << methodName(method) << "(";
QStringList argNames = makeArgNames(method.inputArgs);
writeArgList(hs, argNames, method.annotations, method.inputArgs);
hs << ")" << Qt::endl
<< " {" << Qt::endl
<< " QList<QVariant> argumentList;" << Qt::endl;
if (!method.inputArgs.isEmpty()) {
hs << " argumentList";
for (int argPos = 0; argPos < method.inputArgs.count(); ++argPos)
hs << " << QVariant::fromValue(" << argNames.at(argPos) << ')';
hs << ";" << Qt::endl;
}
if (isNoReply)
hs << " callWithArgumentList(QDBus::NoBlock, "
<< "QStringLiteral(\"" << method.name << "\"), argumentList);" << Qt::endl;
else
hs << " return asyncCallWithArgumentList(QStringLiteral(\""
<< method.name << "\"), argumentList);" << Qt::endl;
// close the function:
hs << " }" << Qt::endl;
if (method.outputArgs.count() > 1) {
// generate the old-form QDBusReply methods with multiple incoming parameters
hs << " inline "
<< (isDeprecated ? "Q_DECL_DEPRECATED " : "")
<< "QDBusReply<"
<< templateArg(qtTypeName(method.outputArgs.first().type, method.annotations, 0, "Out")) << "> ";
hs << method.name << "(";
QStringList argNames = makeArgNames(method.inputArgs, method.outputArgs);
writeArgList(hs, argNames, method.annotations, method.inputArgs, method.outputArgs);
hs << ")" << Qt::endl
<< " {" << Qt::endl
<< " QList<QVariant> argumentList;" << Qt::endl;
int argPos = 0;
if (!method.inputArgs.isEmpty()) {
hs << " argumentList";
for (argPos = 0; argPos < method.inputArgs.count(); ++argPos)
hs << " << QVariant::fromValue(" << argNames.at(argPos) << ')';
hs << ";" << Qt::endl;
}
hs << " QDBusMessage reply = callWithArgumentList(QDBus::Block, "
<< "QStringLiteral(\"" << method.name << "\"), argumentList);" << Qt::endl;
argPos++;
hs << " if (reply.type() == QDBusMessage::ReplyMessage && reply.arguments().count() == "
<< method.outputArgs.count() << ") {" << Qt::endl;
// yes, starting from 1
for (int i = 1; i < method.outputArgs.count(); ++i)
hs << " " << argNames.at(argPos++) << " = qdbus_cast<"
<< templateArg(qtTypeName(method.outputArgs.at(i).type, method.annotations, i, "Out"))
<< ">(reply.arguments().at(" << i << "));" << Qt::endl;
hs << " }" << Qt::endl
<< " return reply;" << Qt::endl
<< " }" << Qt::endl;
}
hs << Qt::endl;
}
hs << "Q_SIGNALS: // SIGNALS" << Qt::endl;
for (const QDBusIntrospection::Signal &signal : interface->signals_) {
hs << " ";
if (signal.annotations.value(QLatin1String("org.freedesktop.DBus.Deprecated")) ==
QLatin1String("true"))
hs << "Q_DECL_DEPRECATED ";
hs << "void " << signal.name << "(";
QStringList argNames = makeArgNames(signal.outputArgs);
writeSignalArgList(hs, argNames, signal.annotations, signal.outputArgs);
hs << ");" << Qt::endl; // finished for header
}
// close the class:
hs << "};" << Qt::endl
<< Qt::endl;
}
if (!skipNamespaces) {
QStringList last;
QDBusIntrospection::Interfaces::ConstIterator it = interfaces.constBegin();
do
{
QStringList current;
QString name;
if (it != interfaces.constEnd()) {
current = it->constData()->name.split(QLatin1Char('.'));
name = current.takeLast();
}
int i = 0;
while (i < current.count() && i < last.count() && current.at(i) == last.at(i))
++i;
// i parts matched
// close last.arguments().count() - i namespaces:
for (int j = i; j < last.count(); ++j)
hs << QString((last.count() - j - 1 + i) * 2, QLatin1Char(' ')) << "}" << Qt::endl;
// open current.arguments().count() - i namespaces
for (int j = i; j < current.count(); ++j)
hs << QString(j * 2, QLatin1Char(' ')) << "namespace " << current.at(j) << " {" << Qt::endl;
// add this class:
if (!name.isEmpty()) {
hs << QString(current.count() * 2, QLatin1Char(' '))
<< "typedef ::" << classNameForInterface(it->constData()->name, Proxy)
<< " " << name << ";" << Qt::endl;
}
if (it == interfaces.constEnd())
break;
++it;
last = current;
} while (true);
}
// close the include guard
hs << "#endif" << Qt::endl;
QString mocName = moc(filename);
if (includeMocs && !mocName.isEmpty())
cs << Qt::endl
<< "#include \"" << mocName << "\"" << Qt::endl;
cs.flush();
hs.flush();
QFile file;
const bool headerOpen = openFile(headerName, file);
if (headerOpen)
file.write(headerData);
if (headerName == cppName) {
if (headerOpen)
file.write(cppData);
} else {
QFile cppFile;
if (openFile(cppName, cppFile))
cppFile.write(cppData);
}
}
static void writeAdaptor(const QString &filename, const QDBusIntrospection::Interfaces &interfaces)
{
// open the file
QString headerName = header(filename);
QByteArray headerData;
QTextStream hs(&headerData);
QString cppName = cpp(filename);
QByteArray cppData;
QTextStream cs(&cppData);
// write the headers
writeHeader(hs, false);
if (cppName != headerName)
writeHeader(cs, true);
// include guards:
QString includeGuard;
if (!headerName.isEmpty() && headerName != QLatin1String("-")) {
includeGuard = headerName.toUpper().replace(QLatin1Char('.'), QLatin1Char('_'));
int pos = includeGuard.lastIndexOf(QLatin1Char('/'));
if (pos != -1)
includeGuard = includeGuard.mid(pos + 1);
} else {
includeGuard = QLatin1String("QDBUSXML2CPP_ADAPTOR");
}
includeGuard = QString(QLatin1String("%1"))
.arg(includeGuard);
hs << "#ifndef " << includeGuard << Qt::endl
<< "#define " << includeGuard << Qt::endl
<< Qt::endl;
// include our stuff:
hs << "#include <QtCore/QObject>" << Qt::endl;
if (cppName == headerName)
hs << "#include <QtCore/QMetaObject>" << Qt::endl
<< "#include <QtCore/QVariant>" << Qt::endl;
hs << "#include <QtDBus/QtDBus>" << Qt::endl;
for (const QString &include : qAsConst(includes)) {
hs << "#include \"" << include << "\"" << Qt::endl;
if (headerName.isEmpty())
cs << "#include \"" << include << "\"" << Qt::endl;
}
if (cppName != headerName) {
if (!headerName.isEmpty() && headerName != QLatin1String("-"))
cs << "#include \"" << headerName << "\"" << Qt::endl;
cs << "#include <QtCore/QMetaObject>" << Qt::endl
<< includeList
<< Qt::endl;
hs << forwardDeclarations;
} else {
hs << includeList;
}
hs << Qt::endl;
QString parent = parentClassName;
if (parentClassName.isEmpty())
parent = QLatin1String("QObject");
for (const QDBusIntrospection::Interface *interface : interfaces) {
QString className = classNameForInterface(interface->name, Adaptor);
// comment:
hs << "/*" << Qt::endl
<< " * Adaptor class for interface " << interface->name << Qt::endl
<< " */" << Qt::endl;
cs << "/*" << Qt::endl
<< " * Implementation of adaptor class " << className << Qt::endl
<< " */" << Qt::endl
<< Qt::endl;
// class header:
hs << "class " << className << ": public QDBusAbstractAdaptor" << Qt::endl
<< "{" << Qt::endl
<< " Q_OBJECT" << Qt::endl
<< " Q_CLASSINFO(\"D-Bus Interface\", \"" << interface->name << "\")" << Qt::endl
<< " Q_CLASSINFO(\"D-Bus Introspection\", \"\"" << Qt::endl
<< stringify(interface->introspection)
<< " \"\")" << Qt::endl
<< "public:" << Qt::endl
<< " " << className << "(" << parent << " *parent);" << Qt::endl
<< " virtual ~" << className << "();" << Qt::endl
<< Qt::endl;
if (!parentClassName.isEmpty())
hs << " inline " << parent << " *parent() const" << Qt::endl
<< " { return static_cast<" << parent << " *>(QObject::parent()); }" << Qt::endl
<< Qt::endl;
// constructor/destructor
cs << className << "::" << className << "(" << parent << " *parent)" << Qt::endl
<< " : QDBusAbstractAdaptor(parent)" << Qt::endl
<< "{" << Qt::endl
<< " // constructor" << Qt::endl
<< " setAutoRelaySignals(true);" << Qt::endl
<< "}" << Qt::endl
<< Qt::endl
<< className << "::~" << className << "()" << Qt::endl
<< "{" << Qt::endl
<< " // destructor" << Qt::endl
<< "}" << Qt::endl
<< Qt::endl;
hs << "public: // PROPERTIES" << Qt::endl;
for (const QDBusIntrospection::Property &property : interface->properties) {
QByteArray type = qtTypeName(property.type, property.annotations);
QString constRefType = constRefArg(type);
QString getter = propertyGetter(property);
QString setter = propertySetter(property);
hs << " Q_PROPERTY(" << type << " " << property.name;
if (property.access != QDBusIntrospection::Property::Write)
hs << " READ " << getter;
if (property.access != QDBusIntrospection::Property::Read)
hs << " WRITE " << setter;
hs << ")" << Qt::endl;
// getter:
if (property.access != QDBusIntrospection::Property::Write) {
hs << " " << type << " " << getter << "() const;" << Qt::endl;
cs << type << " "
<< className << "::" << getter << "() const" << Qt::endl
<< "{" << Qt::endl
<< " // get the value of property " << property.name << Qt::endl
<< " return qvariant_cast< " << type <<" >(parent()->property(\"" << property.name << "\"));" << Qt::endl
<< "}" << Qt::endl
<< Qt::endl;
}
// setter
if (property.access != QDBusIntrospection::Property::Read) {
hs << " void " << setter << "(" << constRefType << "value);" << Qt::endl;
cs << "void " << className << "::" << setter << "(" << constRefType << "value)" << Qt::endl
<< "{" << Qt::endl
<< " // set the value of property " << property.name << Qt::endl
<< " parent()->setProperty(\"" << property.name << "\", QVariant::fromValue(value";
if (constRefType.contains(QLatin1String("QDBusVariant")))
cs << ".variant()";
cs << "));" << Qt::endl
<< "}" << Qt::endl
<< Qt::endl;
}
hs << Qt::endl;
}
hs << "public Q_SLOTS: // METHODS" << Qt::endl;
for (const QDBusIntrospection::Method &method : interface->methods) {
bool isNoReply =
method.annotations.value(QLatin1String(ANNOTATION_NO_WAIT)) == QLatin1String("true");
if (isNoReply && !method.outputArgs.isEmpty()) {
fprintf(stderr, "%s: warning while processing '%s': method %s in interface %s is marked 'no-reply' but has output arguments.\n",
PROGRAMNAME, qPrintable(inputFile), qPrintable(method.name), qPrintable(interface->name));
continue;
}
hs << " ";
if (method.annotations.value(QLatin1String("org.freedesktop.DBus.Deprecated")) ==
QLatin1String("true"))
hs << "Q_DECL_DEPRECATED ";
QByteArray returnType;
if (isNoReply) {
hs << "Q_NOREPLY void ";
cs << "void ";
} else if (method.outputArgs.isEmpty()) {
hs << "void ";
cs << "void ";
} else {
returnType = qtTypeName(method.outputArgs.first().type, method.annotations, 0, "Out");
hs << returnType << " ";
cs << returnType << " ";
}
QString name = methodName(method);
hs << name << "(";
cs << className << "::" << name << "(";
QStringList argNames = makeArgNames(method.inputArgs, method.outputArgs);
writeArgList(hs, argNames, method.annotations, method.inputArgs, method.outputArgs);
writeArgList(cs, argNames, method.annotations, method.inputArgs, method.outputArgs);
hs << ");" << Qt::endl; // finished for header
cs << ")" << Qt::endl
<< "{" << Qt::endl
<< " // handle method call " << interface->name << "." << methodName(method) << Qt::endl;
// make the call
bool usingInvokeMethod = false;
if (parentClassName.isEmpty() && method.inputArgs.count() <= 10
&& method.outputArgs.count() <= 1)
usingInvokeMethod = true;
if (usingInvokeMethod) {
// we are using QMetaObject::invokeMethod
if (!returnType.isEmpty())
cs << " " << returnType << " " << argNames.at(method.inputArgs.count())
<< ";" << Qt::endl;
static const char invoke[] = " QMetaObject::invokeMethod(parent(), \"";
cs << invoke << name << "\"";
if (!method.outputArgs.isEmpty())
cs << ", Q_RETURN_ARG("
<< qtTypeName(method.outputArgs.at(0).type, method.annotations,
0, "Out")
<< ", "
<< argNames.at(method.inputArgs.count())
<< ")";
for (int i = 0; i < method.inputArgs.count(); ++i)
cs << ", Q_ARG("
<< qtTypeName(method.inputArgs.at(i).type, method.annotations,
i, "In")
<< ", "
<< argNames.at(i)
<< ")";
cs << ");" << Qt::endl;
if (!returnType.isEmpty())
cs << " return " << argNames.at(method.inputArgs.count()) << ";" << Qt::endl;
} else {
if (parentClassName.isEmpty())
cs << " //";
else
cs << " ";
if (!method.outputArgs.isEmpty())
cs << "return ";
if (parentClassName.isEmpty())
cs << "static_cast<YourObjectType *>(parent())->";
else
cs << "parent()->";
cs << name << "(";
int argPos = 0;
bool first = true;
for (int i = 0; i < method.inputArgs.count(); ++i) {
cs << (first ? "" : ", ") << argNames.at(argPos++);
first = false;
}
++argPos; // skip retval, if any
for (int i = 1; i < method.outputArgs.count(); ++i) {
cs << (first ? "" : ", ") << argNames.at(argPos++);
first = false;
}
cs << ");" << Qt::endl;
}
cs << "}" << Qt::endl
<< Qt::endl;
}
hs << "Q_SIGNALS: // SIGNALS" << Qt::endl;
for (const QDBusIntrospection::Signal &signal : interface->signals_) {
hs << " ";
if (signal.annotations.value(QLatin1String("org.freedesktop.DBus.Deprecated")) ==
QLatin1String("true"))
hs << "Q_DECL_DEPRECATED ";
hs << "void " << signal.name << "(";
QStringList argNames = makeArgNames(signal.outputArgs);
writeSignalArgList(hs, argNames, signal.annotations, signal.outputArgs);
hs << ");" << Qt::endl; // finished for header
}
// close the class:
hs << "};" << Qt::endl
<< Qt::endl;
}
// close the include guard
hs << "#endif" << Qt::endl;
QString mocName = moc(filename);
if (includeMocs && !mocName.isEmpty())
cs << Qt::endl
<< "#include \"" << mocName << "\"" << Qt::endl;
cs.flush();
hs.flush();
QFile file;
const bool headerOpen = openFile(headerName, file);
if (headerOpen)
file.write(headerData);
if (headerName == cppName) {
if (headerOpen)
file.write(cppData);
} else {
QFile cppFile;
if (openFile(cppName, cppFile))
cppFile.write(cppData);
}
}
int main(int argc, char **argv)
{
QCoreApplication app(argc, argv);
QCoreApplication::setApplicationName(QStringLiteral(PROGRAMNAME));
QCoreApplication::setApplicationVersion(QStringLiteral(PROGRAMVERSION));
QCommandLineParser parser;
parser.setApplicationDescription(QLatin1String(
"Produces the C++ code to implement the interfaces defined in the input file.\n\n"
"If the file name given to the options -a and -p does not end in .cpp or .h, the\n"
"program will automatically append the suffixes and produce both files.\n"
"You can also use a colon (:) to separate the header name from the source file\n"
"name, as in '-a filename_p.h:filename.cpp'.\n\n"
"If you pass a dash (-) as the argument to either -p or -a, the output is written\n"
"to the standard output."));
parser.addHelpOption();
parser.addVersionOption();
parser.addPositionalArgument(QStringLiteral("xml-or-xml-file"), QStringLiteral("XML file to use."));
parser.addPositionalArgument(QStringLiteral("interfaces"), QStringLiteral("List of interfaces to use."),
QStringLiteral("[interfaces ...]"));
QCommandLineOption adapterCodeOption(QStringList() << QStringLiteral("a") << QStringLiteral("adaptor"),
QStringLiteral("Write the adaptor code to <filename>"), QStringLiteral("filename"));
parser.addOption(adapterCodeOption);
QCommandLineOption classNameOption(QStringList() << QStringLiteral("c") << QStringLiteral("classname"),
QStringLiteral("Use <classname> as the class name for the generated classes"), QStringLiteral("classname"));
parser.addOption(classNameOption);
QCommandLineOption addIncludeOption(QStringList() << QStringLiteral("i") << QStringLiteral("include"),
QStringLiteral("Add #include to the output"), QStringLiteral("filename"));
parser.addOption(addIncludeOption);
QCommandLineOption adapterParentOption(QStringLiteral("l"),
QStringLiteral("When generating an adaptor, use <classname> as the parent class"), QStringLiteral("classname"));
parser.addOption(adapterParentOption);
QCommandLineOption mocIncludeOption(QStringList() << QStringLiteral("m") << QStringLiteral("moc"),
QStringLiteral("Generate #include \"filename.moc\" statements in the .cpp files"));
parser.addOption(mocIncludeOption);
QCommandLineOption noNamespaceOption(QStringList() << QStringLiteral("N") << QStringLiteral("no-namespaces"),
QStringLiteral("Don't use namespaces"));
parser.addOption(noNamespaceOption);
QCommandLineOption proxyCodeOption(QStringList() << QStringLiteral("p") << QStringLiteral("proxy"),
QStringLiteral("Write the proxy code to <filename>"), QStringLiteral("filename"));
parser.addOption(proxyCodeOption);
QCommandLineOption verboseOption(QStringList() << QStringLiteral("V") << QStringLiteral("verbose"),
QStringLiteral("Be verbose."));
parser.addOption(verboseOption);
parser.process(app);
adaptorFile = parser.value(adapterCodeOption);
globalClassName = parser.value(classNameOption);
includes = parser.values(addIncludeOption);
parentClassName = parser.value(adapterParentOption);
includeMocs = parser.isSet(mocIncludeOption);
skipNamespaces = parser.isSet(noNamespaceOption);
proxyFile = parser.value(proxyCodeOption);
verbose = parser.isSet(verboseOption);
wantedInterfaces = parser.positionalArguments();
if (!wantedInterfaces.isEmpty()) {
inputFile = wantedInterfaces.takeFirst();
QFileInfo inputInfo(inputFile);
if (!inputInfo.exists() || !inputInfo.isFile() || !inputInfo.isReadable()) {
qCritical("Error: Input %s is not a file or cannot be accessed\n", qPrintable(inputFile));
return 1;
}
}
if (verbose)
QLoggingCategory::setFilterRules(QStringLiteral("dbus.parser.debug=true"));
QDBusIntrospection::Interfaces interfaces = readInput();
cleanInterfaces(interfaces);
QStringList args = app.arguments();
args.removeFirst();
commandLine = QLatin1String(PROGRAMNAME " ");
commandLine += args.join(QLatin1Char(' '));
if (!proxyFile.isEmpty() || adaptorFile.isEmpty())
writeProxy(proxyFile, interfaces);
if (!adaptorFile.isEmpty())
writeAdaptor(adaptorFile, interfaces);
return 0;
}