Fixed generation of empty packages in class diagrams (Fixes #253)

CHANGELOG.md

@@ -1,5 +1,6 @@
 # CHANGELOG
 
+ * Fixed generation of empty packages in class diagrams (#253)
  * Added option inline_lambda_messages to omit lambda expressions from sequence
    diagrams (#261)
  * Added support for CUDA calls in sequence diagrams (#263)

src/class_diagram/generators/plantuml/class_diagram_generator.cc

@@ -724,7 +724,10 @@ void generator::generate(const package &p, std::ostream &ostr) const
         if (dynamic_cast<package *>(subpackage.get()) != nullptr) {
             // TODO: add option - generate_empty_packages
             const auto &sp = dynamic_cast<package &>(*subpackage);
-            if (!sp.is_empty()) {
+            if (!sp.is_empty() &&
+                !sp.all_of([this](const common::model::element &e) {
+                    return !model().should_include(e);
+                })) {
                 together_group_stack_.enter();
 
                 generate(sp, ostr);