Cannot add custom type to d-bus protocol

As written In the title, I am trying to add my custom type (calles TestType) to a d-bus based interfaces. However when compyling the code, I get an error message in the generated adaptor code

Quote:

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TestType has not been declared.

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I have searched the internet and found some examples how it should work. So in the XML protocol file (Test.xml), I have added following method:

Code:

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<method name="testMethod">
    <annotation name="org.qtproject.QtDBus.QtTypeName.In0" value="TestType"/>
    <arg name="TestType" type="(i)" direction="in"/>
</method>

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In my header file I have following (TestType.hpp)

Code:

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#ifndef TESTTYPE_HPP
#define TESTTYPE_HPP
 
#include <QDBusArgument>
#include <QDBusMetaType>
#include <QObject>
 
enum class TestType
{
...whatever
};
 
QDBusArgument &operator<<(QDBusArgument &argument, const TestType &testType);
const QDBusArgument &operator>>(const QDBusArgument &argument, const TestType &testType);
 
Q_DECLARE_METATYPE(TestType)
 
inline void registerType()
{
    qRegisterMetaType<TestType>("TestType");
    qDBusRegisterMetaType<TestType>();
}
 
#endif // TESTTYPE_HPP

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The according .cpp file looks like this:

Code:

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#include "TestType.hpp"
#include <QDBusMetaType>
 
QDBusArgument &operator<<(QDBusArgument &argument, const TestType &testType)
{
    argument.beginStructure();
    argument << testType;
    argument.endStructure();
 
    return argument;
}
 
const QDBusArgument &operator>>(const QDBusArgument &argument, const TestType &testType)
{
    argument.beginStructure();
    argument >> testType;
    argument.endStructure();
 
    return argument;
}
 
int main(int argc, char *argv[])
{
    registerType();
}

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I will try to copy only the relevant lines from my cmake file:

Code:

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set(SOURCES TestType.cpp AnotherTestClass.cpp Test.xml)
 
qt5_add_dbus_adaptor(SOURCES Test.xml
                     AnotherTestClass.hpp AnotherTestClass)

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So when the generated source code of the adaptor classes is created, I get the mentioned error. In my understanding, I have to specify somehow that the generated source files include my header ? IF yes, I don't know how to do it, or am I missing something completely? I am using qt 5.12 on ubuntu.

Your introspection XML says that the argument is named TestType, so the generated code will look like

Code:

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void testType(TestType TestType);

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That's like writing

Code:

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void foo(int int);

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I.e. the argument name must not be a type name.

Cheers,
_

Oh yes, you are right. But I did it correctly in my code, this was a typo here when I changed the variable names. So my problem still remains :/

Have you tried including TestType.hpp in AnotherTestClass.hpp?

Cheers,
_

That seemed like a good idea, I have tried it but it also does not work. The generated header file of dbus only includes some

Code:

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QtCore

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classes, and it does not know about mine :/.

Quote:

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Originally Posted by anda_skoa

Have you tried including TestType.hpp in AnotherTestClass.hpp?

Cheers,
_

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Quote:

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Originally Posted by bananahana

The generated header file of dbus only includes some

Code:

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QtCore

---

classes, and it does not know about mine :/.

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It should also have included the header you passed.

Can you check which command is actually executed during build?

$ make VERBOSE=1

It should be something like

qdbusxml2cpp Test.xml -i AnotherTestClass.hpp -a AnotherTestClass

Maybe you need to change header name so that it doesn't have the same name as the class that is being generated.

Cheers,
_