Added handling of template template class template arguments

src/uml/class_diagram_visitor.h

@@ -305,11 +305,18 @@ static enum CXChildVisitResult class_visitor(
 
             ret = CXChildVisit_Continue;
         } break;
-        case CXCursor_TemplateTemplateParameter:
+        case CXCursor_TemplateTemplateParameter: {
-            spdlog::info(
+            spdlog::info("Found template template parameter: {}: {}",
-                "Found template template parameter: {}", cursor.spelling());
+                cursor.spelling(), cursor.type());
+
+            class_template ct;
+            ct.type = "";
+            ct.name = cursor.spelling() + "<>";
+            ct.default_value = "";
+            ctx->element.templates.emplace_back(std::move(ct));
+
             ret = CXChildVisit_Continue;
-            break;
+        } break;
         case CXCursor_CXXMethod:
         case CXCursor_Constructor:
         case CXCursor_Destructor:

tests/t00008/t00008.cc

@@ -5,6 +5,7 @@ namespace clanguml {
 namespace t00008 {
 
 using CMP = bool (*)(const int, const int);
+
 template <typename T, typename P = T, CMP = nullptr, int N = 3> class A {
 public:
     T value;
@@ -15,5 +16,10 @@ public:
 
     CMP comparator;
 };
+
+template <typename T, template <typename> typename C> class B {
+public:
+    C<T> template_template;
+};
 }
 }

tests/t00008/test_case.h

@@ -52,6 +52,10 @@ TEST_CASE("Test t00008", "[unit-test]")
     REQUIRE_THAT(puml, IsField(Public("std::array<int, N> ints")));
     REQUIRE_THAT(puml, IsField(Public("bool (*)(int, int) comparator")));
 
+    REQUIRE_THAT(puml, IsClassTemplate("B", "T, C<>"));
+
+    REQUIRE_THAT(puml, IsField(Public("C<T> template_template")));
+
     save_puml(
         "./" + config.output_directory + "/" + diagram->name + ".puml", puml);
 }