mirror of
https://gitlab.freedesktop.org/dbus/dbus.git
synced 2025-12-29 09:00:11 +01:00
edbf2bfc10
This includes a big reorganisation of the files inside the subdir. We really need a version control system that supports moving of files. I'm not bothering with history anyways anymore, since the bindings will be moved out to git. The history should be restored from Subversion when that happens.
689 lines
21 KiB
C++
689 lines
21 KiB
C++
/* -*- C++ -*-
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*
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* Copyright (C) 2006 Trolltech AS. All rights reserved.
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* Author: Thiago Macieira <thiago.macieira@trolltech.com>
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*
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* Licensed under the Academic Free License version 2.1
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "qdbusmetaobject_p.h"
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#include <QtCore/qbytearray.h>
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#include <QtCore/qhash.h>
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#include <QtCore/qstring.h>
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#include <QtCore/qvarlengtharray.h>
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#include "qdbusutil.h"
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#include "qdbuserror.h"
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#include "qdbusintrospection_p.h"
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#include "qdbusabstractinterface_p.h"
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class QDBusMetaObjectGenerator
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{
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public:
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QDBusMetaObjectGenerator(const QString &interface,
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const QDBusIntrospection::Interface *parsedData);
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void write(QDBusMetaObject *obj);
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void writeWithoutXml(QDBusMetaObject *obj);
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private:
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struct Method {
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QByteArray parameters;
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QByteArray typeName;
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QByteArray tag;
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QByteArray inputSignature;
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QByteArray outputSignature;
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QVarLengthArray<int, 4> inputTypes;
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QVarLengthArray<int, 4> outputTypes;
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int flags;
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};
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struct Property {
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QByteArray typeName;
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QByteArray signature;
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int type;
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int flags;
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};
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enum PropertyFlags {
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Invalid = 0x00000000,
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Readable = 0x00000001,
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Writable = 0x00000002,
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Resettable = 0x00000004,
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EnumOrFlag = 0x00000008,
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StdCppSet = 0x00000100,
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// Override = 0x00000200,
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Designable = 0x00001000,
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ResolveDesignable = 0x00002000,
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Scriptable = 0x00004000,
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ResolveScriptable = 0x00008000,
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Stored = 0x00010000,
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ResolveStored = 0x00020000,
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Editable = 0x00040000,
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ResolveEditable = 0x00080000,
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User = 0x00100000,
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ResolveUser = 0x00200000
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};
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enum MethodFlags {
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AccessPrivate = 0x00,
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AccessProtected = 0x01,
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AccessPublic = 0x02,
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AccessMask = 0x03, //mask
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MethodMethod = 0x00,
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MethodSignal = 0x04,
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MethodSlot = 0x08,
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MethodTypeMask = 0x0c,
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MethodCompatibility = 0x10,
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MethodCloned = 0x20,
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MethodScriptable = 0x40
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};
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QMap<QByteArray, Method> methods;
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QMap<QByteArray, Property> properties;
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const QDBusIntrospection::Interface *data;
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QString interface;
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void parseMethods();
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void parseSignals();
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void parseProperties();
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};
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static const int intsPerProperty = 2;
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static const int intsPerMethod = 4;
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// ### from kernel/qmetaobject.cpp (Qt 4.1.2):
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struct QDBusMetaObjectPrivate
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{
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int revision;
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int className;
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int classInfoCount, classInfoData;
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int methodCount, methodData;
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int propertyCount, propertyData;
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int enumeratorCount, enumeratorData;
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// this is specific for QDBusMetaObject:
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int propertyDBusData;
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int methodDBusData;
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};
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QDBusMetaObjectGenerator::QDBusMetaObjectGenerator(const QString &interfaceName,
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const QDBusIntrospection::Interface *parsedData)
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: data(parsedData), interface(interfaceName)
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{
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if (data) {
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parseProperties();
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parseSignals(); // call parseSignals first so that slots override signals
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parseMethods();
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}
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}
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void QDBusMetaObjectGenerator::parseMethods()
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{
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foreach (const QDBusIntrospection::Method &m, data->methods) {
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Method mm;
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QByteArray prototype = m.name.toLatin1();
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prototype += '(';
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bool ok = true;
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// build the input argument list
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foreach (const QDBusIntrospection::Argument &arg, m.inputArgs) {
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int typeId = QDBusUtil::signatureToType(arg.type);
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if (typeId == QVariant::Invalid) {
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ok = false;
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break;
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}
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mm.inputSignature += arg.type;
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mm.inputTypes.append(typeId);
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mm.parameters.append(arg.name.toLatin1());
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mm.parameters.append(',');
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prototype.append( QVariant::typeToName( QVariant::Type(typeId) ) );
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prototype.append(',');
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}
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if (!ok) continue;
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// build the output argument list:
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for (int i = 0; i < m.outputArgs.count(); ++i) {
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const QDBusIntrospection::Argument &arg = m.outputArgs.at(i);
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int typeId = QDBusUtil::signatureToType(arg.type);
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if (typeId == QVariant::Invalid) {
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ok = false;
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break;
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}
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mm.outputSignature += arg.type;
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mm.outputTypes.append(typeId);
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if (i == 0) {
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// return value
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mm.typeName = QVariant::typeToName( QVariant::Type(typeId) );
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} else {
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// non-const ref parameter
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mm.parameters.append(arg.name.toLatin1());
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mm.parameters.append(',');
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prototype.append( QVariant::typeToName( QVariant::Type(typeId) ) );
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prototype.append("&,");
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}
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}
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if (!ok) continue;
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// convert the last commas:
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if (!mm.parameters.isEmpty()) {
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mm.parameters.truncate(mm.parameters.length() - 1);
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prototype[prototype.length() - 1] = ')';
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} else {
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prototype.append(')');
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}
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// check the async tag
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if (m.annotations.value(QLatin1String(ANNOTATION_NO_WAIT)) == QLatin1String("true"))
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mm.tag = "Q_ASYNC";
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// meta method flags
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mm.flags = AccessPublic | MethodSlot | MethodScriptable;
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// add
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methods.insert(QMetaObject::normalizedSignature(prototype), mm);
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}
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}
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void QDBusMetaObjectGenerator::parseSignals()
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{
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foreach (const QDBusIntrospection::Signal &s, data->signals_) {
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Method mm;
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QByteArray prototype = s.name.toLatin1();
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prototype += '(';
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bool ok = true;
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// build the output argument list
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foreach (const QDBusIntrospection::Argument &arg, s.outputArgs) {
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int typeId = QDBusUtil::signatureToType(arg.type);
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if (typeId == QVariant::Invalid) {
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ok = false;
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break;
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}
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mm.inputSignature += arg.type;
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mm.inputTypes.append(typeId);
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mm.parameters.append(arg.name.toLatin1());
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mm.parameters.append(',');
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prototype.append( QVariant::typeToName( QVariant::Type(typeId) ) );
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prototype.append(',');
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}
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if (!ok) continue;
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// convert the last commas:
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if (!mm.parameters.isEmpty()) {
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mm.parameters.truncate(mm.parameters.length() - 1);
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prototype[prototype.length() - 1] = ')';
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} else {
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prototype.append(')');
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}
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// meta method flags
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mm.flags = AccessProtected | MethodSignal | MethodScriptable;
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// add
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methods.insert(QMetaObject::normalizedSignature(prototype), mm);
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}
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}
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void QDBusMetaObjectGenerator::parseProperties()
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{
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foreach (const QDBusIntrospection::Property &p, data->properties) {
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Property mp;
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mp.type = QDBusUtil::signatureToType(p.type);
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if (mp.type == QVariant::Invalid)
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continue;
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QByteArray name = p.name.toLatin1();
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mp.signature = p.type.toLatin1();
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mp.typeName = QVariant::typeToName( QVariant::Type(mp.type) );
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// build the flags:
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mp.flags = StdCppSet | Scriptable | Stored;
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if (p.access != QDBusIntrospection::Property::Write)
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mp.flags |= Readable;
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if (p.access != QDBusIntrospection::Property::Read)
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mp.flags |= Writable;
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if (mp.typeName == "QVariant")
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mp.flags |= 0xff << 24;
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else if (mp.type < 0xff)
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// encode the type in the flags
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mp.flags |= mp.type << 24;
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// add the property:
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properties.insert(name, mp);
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}
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}
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void QDBusMetaObjectGenerator::write(QDBusMetaObject *obj)
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{
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// this code here is mostly copied from qaxbase.cpp
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// with a few modifications to make it cleaner
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QString className = interface;
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className.replace(QLatin1Char('.'), QLatin1String("::"));
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if (className.isEmpty())
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className = QLatin1String("QDBusInterface");
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QVarLengthArray<int> data;
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data.resize(sizeof(QDBusMetaObjectPrivate) / sizeof(int));
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QDBusMetaObjectPrivate *header = reinterpret_cast<QDBusMetaObjectPrivate *>(data.data());
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header->revision = 1;
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header->className = 0;
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header->classInfoCount = 0;
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header->classInfoData = 0;
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header->methodCount = methods.count();
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header->methodData = data.size();
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header->propertyCount = properties.count();
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header->propertyData = header->methodData + header->methodCount * 5;
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header->enumeratorCount = 0;
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header->enumeratorData = 0;
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header->propertyDBusData = header->propertyData + header->propertyCount * 3;
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header->methodDBusData = header->propertyDBusData + header->propertyCount * intsPerProperty;
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int data_size = data.size() +
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(header->methodCount * (5+intsPerMethod)) +
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(header->propertyCount * (3+intsPerProperty));
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foreach (const Method &mm, methods)
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data_size += 2 + mm.inputTypes.count() + mm.outputTypes.count();
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data.resize(data_size + 1);
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char null('\0');
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QByteArray stringdata = className.toLatin1();
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stringdata += null;
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stringdata.reserve(8192);
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int offset = header->methodData;
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int signatureOffset = header->methodDBusData;
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int typeidOffset = header->methodDBusData + header->methodCount * intsPerMethod;
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data[typeidOffset++] = 0; // eod
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// add each method:
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for (QMap<QByteArray, Method>::ConstIterator it = methods.constBegin();
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it != methods.constEnd(); ++it) {
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// form "prototype\0parameters\0typeName\0tag\0inputSignature\0outputSignature"
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const Method &mm = it.value();
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data[offset++] = stringdata.length();
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stringdata += it.key(); // prototype
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stringdata += null;
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data[offset++] = stringdata.length();
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stringdata += mm.parameters;
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stringdata += null;
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data[offset++] = stringdata.length();
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stringdata += mm.typeName;
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stringdata += null;
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data[offset++] = stringdata.length();
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stringdata += mm.tag;
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stringdata += null;
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data[offset++] = mm.flags;
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data[signatureOffset++] = stringdata.length();
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stringdata += mm.inputSignature;
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stringdata += null;
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data[signatureOffset++] = stringdata.length();
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stringdata += mm.outputSignature;
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stringdata += null;
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data[signatureOffset++] = typeidOffset;
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data[typeidOffset++] = mm.inputTypes.count();
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memcpy(data.data() + typeidOffset, mm.inputTypes.data(), mm.inputTypes.count() * sizeof(int));
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typeidOffset += mm.inputTypes.count();
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data[signatureOffset++] = typeidOffset;
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data[typeidOffset++] = mm.outputTypes.count();
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memcpy(data.data() + typeidOffset, mm.outputTypes.data(), mm.outputTypes.count() * sizeof(int));
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typeidOffset += mm.outputTypes.count();
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}
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Q_ASSERT(offset == header->propertyData);
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Q_ASSERT(signatureOffset == header->methodDBusData + header->methodCount * intsPerMethod);
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Q_ASSERT(typeidOffset == data.size());
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// add each property
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signatureOffset = header->propertyDBusData;
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for (QMap<QByteArray, Property>::ConstIterator it = properties.constBegin();
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it != properties.constEnd(); ++it) {
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const Property &mp = it.value();
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// form is "name\0typeName\0signature\0"
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data[offset++] = stringdata.length();
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stringdata += it.key(); // name
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stringdata += null;
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data[offset++] = stringdata.length();
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stringdata += mp.typeName;
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stringdata += null;
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data[offset++] = mp.flags;
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data[signatureOffset++] = stringdata.length();
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stringdata += mp.signature;
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stringdata += null;
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data[signatureOffset++] = mp.type;
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}
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Q_ASSERT(offset == header->propertyDBusData);
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Q_ASSERT(signatureOffset == header->methodDBusData);
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char *string_data = new char[stringdata.length()];
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memcpy(string_data, stringdata, stringdata.length());
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uint *uint_data = new uint[data.size()];
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memcpy(uint_data, data.data(), data.size() * sizeof(int));
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// put the metaobject together
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obj->d.data = uint_data;
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obj->d.extradata = 0;
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obj->d.stringdata = string_data;
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obj->d.superdata = &QDBusAbstractInterface::staticMetaObject;
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}
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#if 0
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void QDBusMetaObjectGenerator::writeWithoutXml(const QString &interface)
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{
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// no XML definition
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QString tmp(interface);
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tmp.replace(QLatin1Char('.'), QLatin1String("::"));
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QByteArray name(tmp.toLatin1());
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QDBusMetaObjectPrivate *header = new QDBusMetaObjectPrivate;
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memset(header, 0, sizeof *header);
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header->revision = 1;
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// leave the rest with 0
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char *stringdata = new char[name.length() + 1];
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stringdata[name.length()] = '\0';
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d.data = reinterpret_cast<uint*>(header);
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d.extradata = 0;
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d.stringdata = stringdata;
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d.superdata = &QDBusAbstractInterface::staticMetaObject;
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cached = false;
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}
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#endif
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/////////
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// class QDBusMetaObject
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QDBusMetaObject *QDBusMetaObject::createMetaObject(const QString &interface, const QString &xml,
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QHash<QString, QDBusMetaObject *> &cache,
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QDBusError &error)
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{
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error = QDBusError();
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QDBusIntrospection::Interfaces parsed = QDBusIntrospection::parseInterfaces(xml);
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QDBusMetaObject *we = 0;
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QDBusIntrospection::Interfaces::ConstIterator it = parsed.constBegin();
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QDBusIntrospection::Interfaces::ConstIterator end = parsed.constEnd();
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for ( ; it != end; ++it) {
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// check if it's in the cache
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QDBusMetaObject *obj = cache.value(it.key(), 0);
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if (!obj) {
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// not in cache; create
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obj = new QDBusMetaObject;
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QDBusMetaObjectGenerator generator(it.key(), it.value().constData());
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generator.write(obj);
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if ( (obj->cached = !it.key().startsWith( QLatin1String("local.") )) )
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// cache it
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cache.insert(it.key(), obj);
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}
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if (it.key() == interface)
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// it's us
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we = obj;
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}
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if (we)
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return we;
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// still nothing?
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if (parsed.isEmpty()) {
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// object didn't return introspection
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we = new QDBusMetaObject;
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QDBusMetaObjectGenerator generator(interface, 0);
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generator.write(we);
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we->cached = false;
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return we;
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} else if (interface.isEmpty()) {
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// merge all interfaces
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it = parsed.constBegin();
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QDBusIntrospection::Interface merged = *it.value().constData();
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for (++it; it != end; ++it) {
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merged.annotations.unite(it.value()->annotations);
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merged.methods.unite(it.value()->methods);
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merged.signals_.unite(it.value()->signals_);
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merged.properties.unite(it.value()->properties);
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}
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merged.name = QLatin1String("local.Merged");
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merged.introspection.clear();
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we = new QDBusMetaObject;
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QDBusMetaObjectGenerator generator(merged.name, &merged);
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generator.write(we);
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we->cached = false;
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return we;
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}
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// mark as an error
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error = QDBusError(QDBusError::UnknownInterface,
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QString( QLatin1String("Interface '%1' was not found") )
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.arg(interface));
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return 0;
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}
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QDBusMetaObject::QDBusMetaObject()
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{
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}
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inline const QDBusMetaObjectPrivate *priv(const uint* data)
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{
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return reinterpret_cast<const QDBusMetaObjectPrivate *>(data);
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}
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const char *QDBusMetaObject::dbusNameForMethod(int id) const
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{
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//id -= methodOffset();
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if (id >= 0 && id < priv(d.data)->methodCount) {
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int handle = priv(d.data)->methodDBusData + id*intsPerMethod;
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return d.stringdata + d.data[handle];
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}
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return 0;
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}
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const char *QDBusMetaObject::inputSignatureForMethod(int id) const
|
|
{
|
|
//id -= methodOffset();
|
|
if (id >= 0 && id < priv(d.data)->methodCount) {
|
|
int handle = priv(d.data)->methodDBusData + id*intsPerMethod;
|
|
return d.stringdata + d.data[handle + 1];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const char *QDBusMetaObject::outputSignatureForMethod(int id) const
|
|
{
|
|
//id -= methodOffset();
|
|
if (id >= 0 && id < priv(d.data)->methodCount) {
|
|
int handle = priv(d.data)->methodDBusData + id*intsPerMethod;
|
|
return d.stringdata + d.data[handle + 2];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const int *QDBusMetaObject::inputTypesForMethod(int id) const
|
|
{
|
|
//id -= methodOffset();
|
|
if (id >= 0 && id < priv(d.data)->methodCount) {
|
|
int handle = priv(d.data)->methodDBusData + id*intsPerMethod;
|
|
return reinterpret_cast<const int*>(d.data + d.data[handle + 3]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const int *QDBusMetaObject::outputTypesForMethod(int id) const
|
|
{
|
|
//id -= methodOffset();
|
|
if (id >= 0 && id < priv(d.data)->methodCount) {
|
|
int handle = priv(d.data)->methodDBusData + id*intsPerMethod;
|
|
return reinterpret_cast<const int*>(d.data + d.data[handle + 4]);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int QDBusMetaObject::propertyMetaType(int id) const
|
|
{
|
|
//id -= propertyOffset();
|
|
if (id >= 0 && id < priv(d.data)->propertyCount) {
|
|
int handle = priv(d.data)->propertyDBusData + id*intsPerProperty;
|
|
return d.data[handle + 1];
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
template<typename T>
|
|
static inline void assign_helper(void *ptr, const QVariant &value)
|
|
{
|
|
*reinterpret_cast<T *>(ptr) = qvariant_cast<T>(value);
|
|
}
|
|
|
|
void QDBusMetaObject::assign(void *ptr, const QVariant &value)
|
|
{
|
|
switch (value.userType())
|
|
{
|
|
case QVariant::Bool:
|
|
assign_helper<bool>(ptr, value);
|
|
return;
|
|
|
|
case QMetaType::UChar:
|
|
assign_helper<uchar>(ptr, value);
|
|
return;
|
|
|
|
case QMetaType::Short:
|
|
assign_helper<short>(ptr, value);
|
|
return;
|
|
|
|
case QMetaType::UShort:
|
|
assign_helper<ushort>(ptr, value);
|
|
return;
|
|
|
|
case QVariant::Int:
|
|
assign_helper<int>(ptr, value);
|
|
return;
|
|
|
|
case QVariant::UInt:
|
|
assign_helper<uint>(ptr, value);
|
|
return;
|
|
|
|
case QVariant::LongLong:
|
|
assign_helper<qlonglong>(ptr, value);
|
|
return;
|
|
|
|
case QVariant::ULongLong:
|
|
assign_helper<qulonglong>(ptr, value);
|
|
return;
|
|
|
|
case QVariant::Double:
|
|
assign_helper<double>(ptr, value);
|
|
return;
|
|
|
|
case QVariant::String:
|
|
assign_helper<QString>(ptr, value);
|
|
return;
|
|
|
|
case QVariant::ByteArray:
|
|
assign_helper<QByteArray>(ptr, value);
|
|
return;
|
|
|
|
case QVariant::List:
|
|
assign_helper<QVariantList>(ptr, value);
|
|
return;
|
|
|
|
case QVariant::Map:
|
|
assign_helper<QVariantMap>(ptr, value);
|
|
return;
|
|
|
|
default:
|
|
;
|
|
}
|
|
}
|
|
|
|
bool QDBusMetaTypeId::initialized = false;
|
|
int QDBusMetaTypeId::variant = 0;
|
|
int QDBusMetaTypeId::boollist = 0;
|
|
int QDBusMetaTypeId::shortlist = 0;
|
|
int QDBusMetaTypeId::ushortlist = 0;
|
|
int QDBusMetaTypeId::intlist = 0;
|
|
int QDBusMetaTypeId::uintlist = 0;
|
|
int QDBusMetaTypeId::longlonglist = 0;
|
|
int QDBusMetaTypeId::ulonglonglist = 0;
|
|
int QDBusMetaTypeId::doublelist = 0;
|
|
|
|
bool QDBusMetaTypeId::innerInitialize()
|
|
{
|
|
variant = qRegisterMetaType<QVariant>("QVariant");
|
|
boollist = qRegisterMetaType<QList<bool> >("QList<bool>");
|
|
shortlist = qRegisterMetaType<QList<short> >("QList<short>");
|
|
ushortlist = qRegisterMetaType<QList<ushort> >("QList<ushort>");
|
|
intlist = qRegisterMetaType<QList<int> >("QList<int>");
|
|
uintlist = qRegisterMetaType<QList<uint> >("QList<uint>");
|
|
longlonglist = qRegisterMetaType<QList<qlonglong> >("QList<qlonglong>");
|
|
ulonglonglist = qRegisterMetaType<QList<qulonglong> >("QList<qulonglong>");
|
|
doublelist = qRegisterMetaType<QList<double> >("QList<double>");
|
|
initialized = true;
|
|
return true;
|
|
}
|
|
|
|
int qDBusMetaTypeId(QVariant *)
|
|
{ QDBusMetaTypeId::initialize(); return QDBusMetaTypeId::variant; }
|
|
int qDBusMetaTypeId(QList<bool> *)
|
|
{ QDBusMetaTypeId::initialize(); return QDBusMetaTypeId::boollist; }
|
|
int qDBusMetaTypeId(QList<short> *)
|
|
{ QDBusMetaTypeId::initialize(); return QDBusMetaTypeId::shortlist; }
|
|
int qDBusMetaTypeId(QList<ushort> *)
|
|
{ QDBusMetaTypeId::initialize(); return QDBusMetaTypeId::ushortlist; }
|
|
int qDBusMetaTypeId(QList<int> *)
|
|
{ QDBusMetaTypeId::initialize(); return QDBusMetaTypeId::intlist; }
|
|
int qDBusMetaTypeId(QList<uint> *)
|
|
{ QDBusMetaTypeId::initialize(); return QDBusMetaTypeId::uintlist; }
|
|
int qDBusMetaTypeId(QList<qlonglong> *)
|
|
{ QDBusMetaTypeId::initialize(); return QDBusMetaTypeId::longlonglist; }
|
|
int qDBusMetaTypeId(QList<qulonglong> *)
|
|
{ QDBusMetaTypeId::initialize(); return QDBusMetaTypeId::ulonglonglist; }
|
|
int qDBusMetaTypeId(QList<double> *)
|
|
{ QDBusMetaTypeId::initialize(); return QDBusMetaTypeId::doublelist; }
|