Enable compilation on VS

Author: etherealjoy

erpc_rust/.gitignore

@@ -1 +1,2 @@
-target
+target
+

erpcgen/VisualStudio_v14/erpcgen.vcxproj

@@ -124,7 +124,8 @@ python.exe ..\bin\txt_to_c.py --output .\java_interface.cpp ..\src\templates\jav
 python.exe ..\bin\txt_to_c.py --output .\java_struct.cpp ..\src\templates\java_struct.template
 python.exe ..\bin\txt_to_c.py --output .\java_server.cpp ..\src\templates\java_server.template
 python.exe ..\bin\txt_to_c.py --output .\java_client.cpp ..\src\templates\java_client.template
-python.exe ..\bin\txt_to_c.py --output .\java_const.cpp ..\src\templates\java_const.template</Command>
+python.exe ..\bin\txt_to_c.py --output .\java_const.cpp ..\src\templates\java_const.template
+python.exe ..\bin\txt_to_c.py --output .\rust_template.cpp ..\src\templates\rust_template.template</Command>
     </PreBuildEvent>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -212,6 +213,7 @@ python.exe ..\bin\txt_to_c.py --output .\java_const.cpp ..\src\templates\java_co
     <ClInclude Include="..\src\InterfaceDefinition.hpp" />
     <ClInclude Include="..\src\ParseErrors.hpp" />
     <ClInclude Include="..\src\PythonGenerator.hpp" />
+    <ClInclude Include="..\src\RustGenerator.hpp" />
     <ClInclude Include="..\src\SymbolScanner.hpp" />
     <ClInclude Include="..\src\Token.hpp" />
     <ClInclude Include="..\src\types\AliasType.hpp" />
@@ -254,6 +256,7 @@ python.exe ..\bin\txt_to_c.py --output .\java_const.cpp ..\src\templates\java_co
     <ClCompile Include="..\src\InterfaceDefinition.cpp" />
     <ClCompile Include="..\src\ParseErrors.cpp" />
     <ClCompile Include="..\src\PythonGenerator.cpp" />
+    <ClCompile Include="..\src\RustGenerator.cpp" />
     <ClCompile Include="..\src\SymbolScanner.cpp" />
     <ClCompile Include="..\src\Token.cpp" />
     <ClCompile Include="..\src\types\Type.cpp" />
@@ -280,6 +283,7 @@ python.exe ..\bin\txt_to_c.py --output .\java_const.cpp ..\src\templates\java_co
     <ClCompile Include="java_client.cpp" />
     <ClCompile Include="java_coders.cpp" />
     <ClCompile Include="java_const.cpp" />
+    <ClCompile Include="rust_template.cpp" />
     <ClCompile Include="java_enum.cpp" />
     <ClCompile Include="java_interface.cpp" />
     <ClCompile Include="java_server.cpp" />

erpcgen/src/RustGenerator.cpp

@@ -808,7 +808,7 @@ std::string RustGenerator::generateClientRequestSerialization(
       << "            let request_data = request_codec.as_bytes().to_vec();\n";
   requestCode << "            \n";
   requestCode << "            let "
-              << (fn->isOneway() ? "_response_data" : "response_data")
+              << (fn->isOneway() ? "_" : "response_data")
               << " = self.client\n";
   requestCode << "                .perform_request(\n";
   requestCode << "                    " << interfaceServiceId << ".as_u8(),\n";
@@ -1569,16 +1569,10 @@ void RustGenerator::determineReturnTypes(
     clientReturnType = rustReturnType;
   } else {
     // Function has no return value or out parameters
-    if (fn->isOneway()) {
-      // Oneway methods return void (no Result wrapper)
-      rustReturnType = "";
-      clientReturnType =
-          " -> Result<(), Box<dyn std::error::Error + Send + Sync>>";
-    } else {
-      rustReturnType =
-          " -> Result<(), Box<dyn std::error::Error + Send + Sync>>";
-      clientReturnType = rustReturnType;
-    }
+    // Always use Result type for consistency and better error handling
+    rustReturnType =
+        " -> Result<(), Box<dyn std::error::Error + Send + Sync>>";
+    clientReturnType = rustReturnType;
   }
 }
 
@@ -1640,12 +1634,10 @@ RustGenerator::generateOnewayServerHandler(Function *fn,
                                                               codecParamName);
 
   // Generate method call with parameters
-  serverHandlerCode << "                    self.service."
+  serverHandlerCode << "                    let _ = self.service."
                     << toSnakeCase(fn->getName()) << "(";
   serverHandlerCode << generateMethodCallParameters(fn, lengthParams);
   serverHandlerCode << ").await;\n";
-  serverHandlerCode
-      << "                    // Oneway methods don't send responses\n";
   serverHandlerCode << "                    Ok(())";
 
   return serverHandlerCode.str();

examples/temp_alarm_rust/src/client_impl.rs

@@ -83,9 +83,6 @@ pub async fn run_client() -> Result<(), Box<dyn std::error::Error>> {
         .map_err(|e| format!("read_results error: {}", e))?;
     println!("✅ Multiple sensor results sent via TempAsyncClient");
 
-    // Continue using TempAsyncClient for more method calls
-    let mut temp_async_client = TempAsyncClient::new(&mut shared_client_manager);
-
     // Fire another alarm notification
     temp_async_client
         .alarm_fired(2, 45.5)

examples/temp_alarm_rust/src/server_impl.rs

@@ -180,11 +180,15 @@ impl TempAsync for TempAsyncServiceImpl {
         Ok(())
     }
 
-    async fn read_results(&self, results: Vec<SensorReadResult>) {
+    async fn read_results(
+        &self,
+        results: Vec<SensorReadResult>,
+    ) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
         println!("📊 Received {} sensor readings:", results.len());
         for result in results {
             println!("  🌡️  Sensor {}: {}°C", result.address, result.temp);
         }
+        Ok(())
     }
 }
 

examples/temp_alarm_rust/src/temp_alarm.rs

@@ -8,7 +8,7 @@
  */
 
 //
-// Generated by erpcgen 1.14.0 on Thu Aug  7 13:19:44 2025.
+// Generated by erpcgen 1.14.0 on Thu Aug  7 14:41:40 2025.
 //
 // AUTOGENERATED - DO NOT EDIT
 //
@@ -1437,7 +1437,10 @@ pub mod temp_async_server {
             temp: f32,
         ) -> Result<(), Box<dyn std::error::Error + Send + Sync>>;
         /// <function(2) read_results-><member (return):(void)> [<struct (fn) [0:<member results:(list)>, 1:<member count:uint32>]>]>
-        async fn read_results(&self, results: Vec<SensorReadResult>);
+        async fn read_results(
+            &self,
+            results: Vec<SensorReadResult>,
+        ) -> Result<(), Box<dyn std::error::Error + Send + Sync>>;
     }
 
     /// Server wrapper for TempAsync service
@@ -1549,8 +1552,7 @@ pub mod temp_async_server {
                         Ok(list)
                     })()?;
 
-                    self.service.read_results(results).await;
-                    // Oneway methods don't send responses
+                    let _ = self.service.read_results(results).await;
                     Ok(())
                 }
             }
@@ -1652,7 +1654,7 @@ pub mod temp_async_server {
 
             let request_data = request_codec.as_bytes().to_vec();
 
-            let _response_data = self
+            let _ = self
                 .client
                 .perform_request(
                     ServiceId::TempAsync.as_u8(),