only generate namespace block when appropriate

1 files changed, 9 insertions, 4 deletions

diff --git a/src/compiler/csharp_generator.cc b/src/compiler/csharp_generator.cc
index 14173e0794..1c51f6da94 100644
--- a/src/compiler/csharp_generator.cc
+++ b/src/compiler/csharp_generator.cc
@@ -680,14 +680,19 @@ grpc::string GetServices(const FileDescriptor* file, bool generate_client,
     out.Print("using grpc = global::Grpc.Core;\n");
     out.Print("\n");
 
-    out.Print("namespace $namespace$ {\n", "namespace", GetFileNamespace(file));
-    out.Indent();
+    grpc::string file_namespace = GetFileNamespace(file);
+    if (file_namespace != "") {
+      out.Print("namespace $namespace$ {\n", "namespace", file_namespace);
+      out.Indent();
+    }
     for (int i = 0; i < file->service_count(); i++) {
       GenerateService(&out, file->service(i), generate_client, generate_server,
                       internal_access);
     }
-    out.Outdent();
-    out.Print("}\n");
+    if (file_namespace != "") {
+      out.Outdent();
+      out.Print("}\n");
+    }
     out.Print("#endregion\n");
   }
   return output;