adbb269eb9
If the interface has a method with a specified return value, the generated adapter will contain a code like: bool out; QMetaObject::invokeMethod(parent(), "Func", Q_RETURN_ARG(bool, out)); return out; In this case Q_RETURN_ARG macro makes sure that the variable `out` is properly initialized before being returned from a function, but only if invokeMethod() call is executed successfully. Update the generator to zero-initialize (or value-initialize) the return variable, so that it returns some reasonable value even if invokeMethod() fails. Extend the unit-tests to make sure that the generated adapters always initialize the return variables. Coverity-Id: 479703 Pick-to: 6.8 6.5 Change-Id: I4d15ccc6844b5ca454ab9f0cf72fd8e3f0c1b704 Reviewed-by: Matthias Rauter <matthias.rauter@qt.io> (cherry picked from commit 92c2ebdbcca9cfae6e4048004b3bdb58af972209) Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>