Implement #104: add getObjectPath() for classes (#105)

* Implement #104: add getObjectPath() for classes

* Implement #104: changes requested in review

Co-authored-by: Christian Schneider <cschneider@radiodata.biz>

include/sdbus-c++/AdaptorInterfaces.h

@@ -131,6 +131,14 @@ namespace sdbus {
             getObject().unregister();
         }
 
+        /*!
+         * @brief Returns object path of the underlying DBus object
+         */
+        const std::string& getObjectPath() const
+        {
+            return getObject().getObjectPath();
+        }
+
     protected:
         using base_type = AdaptorInterfaces;
     };

include/sdbus-c++/IObject.h

@@ -435,6 +435,11 @@ namespace sdbus {
          * @throws sdbus::Error in case of failure
          */
         [[nodiscard]] SignalEmitter emitSignal(const std::string& signalName);
+
+        /*!
+         * @brief Returns object path of the underlying DBus object
+         */
+        virtual const std::string& getObjectPath() const = 0;
     };
 
     // Out-of-line member definitions

include/sdbus-c++/IProxy.h

@@ -266,6 +266,11 @@ namespace sdbus {
          * @throws sdbus::Error in case of failure
          */
         [[nodiscard]] PropertySetter setProperty(const std::string& propertyName);
+
+        /*!
+         * @brief Returns object path of the underlying DBus object
+         */
+        virtual const std::string& getObjectPath() const = 0;
     };
 
     /********************************************//**

include/sdbus-c++/ProxyInterfaces.h

@@ -165,6 +165,14 @@ namespace sdbus {
             getProxy().unregister();
         }
 
+        /*!
+         * @brief Returns object path of the underlying DBus object
+         */
+        const std::string& getObjectPath() const
+        {
+            return getProxy().getObjectPath();
+        }
+
     protected:
         using base_type = ProxyInterfaces;
     };

src/Object.cpp

@@ -225,6 +225,11 @@ sdbus::IConnection& Object::getConnection() const
     return dynamic_cast<sdbus::IConnection&>(connection_);
 }
 
+const std::string& Object::getObjectPath() const
+{
+    return objectPath_;
+}
+
 const std::vector<sd_bus_vtable>& Object::createInterfaceVTable(InterfaceData& interfaceData)
 {
     auto& vtable = interfaceData.vtable;

src/Object.h

@@ -101,6 +101,7 @@ namespace sdbus::internal {
         bool hasObjectManager() const override;
 
         sdbus::IConnection& getConnection() const override;
+        const std::string& getObjectPath() const override;
 
     private:
         using InterfaceName = std::string;

src/Proxy.cpp

@@ -198,6 +198,11 @@ void Proxy::unregister()
     interfaces_.clear();
 }
 
+const std::string& Proxy::getObjectPath() const
+{
+    return objectPath_;
+}
+
 int Proxy::sdbus_async_reply_handler(sd_bus_message *sdbusMessage, void *userData, sd_bus_error */*retError*/)
 {
     auto* asyncCallData = static_cast<AsyncCalls::CallData*>(userData);

src/Proxy.h

@@ -60,6 +60,8 @@ namespace sdbus::internal {
         void finishRegistration() override;
         void unregister() override;
 
+        const std::string& getObjectPath() const override;
+
     private:
         class SyncCallReplyData
         {