Added is_system header file property to JSON include diagram generator

src/common/model/source_file.h

@@ -117,6 +117,20 @@ public:
      */
     source_file_t type() const { return type_; }
 
+    /**
+     * Set whether the file is a system header
+     *
+     * @param is_system Whether the file is a system header
+     */
+    void set_system_header(bool is_system) { is_system_header_ = is_system; }
+
+    /**
+     * Is the file a system header?
+     *
+     * @return True, if the source file is a system header
+     */
+    bool is_system_header() const { return is_system_header_; }
+
     /**
      * Get the source file's parent path.
      *
@@ -185,6 +199,7 @@ private:
     filesystem_path path_{path_type::kFilesystem};
     source_file_t type_{source_file_t::kDirectory};
     bool is_absolute_{false};
+    bool is_system_header_{false};
 };
 } // namespace clanguml::common::model
 

src/include_diagram/generators/json/include_diagram_generator.cc

@@ -78,6 +78,9 @@ void generator::generate(const source_file &f, nlohmann::json &parent) const
 
             j["type"] = "file";
             j["file_kind"] = to_string(f.type());
+            if (f.type() == common::model::source_file_t::kHeader) {
+                j["is_system"] = f.is_system_header();
+            }
 
             parent["elements"].push_back(std::move(j));
         }

src/include_diagram/visitor/translation_unit_visitor.cc

@@ -147,6 +147,7 @@ void translation_unit_visitor::include_visitor::process_internal_header(
     include_file.set_file(
         std::filesystem::absolute(include_path).lexically_normal().string());
     include_file.set_line(0);
+    include_file.set_system_header(is_system);
 
     // Add relationship from the currently parsed source file to this
     // include file
@@ -174,6 +175,7 @@ void translation_unit_visitor::include_visitor::process_external_system_header(
     f->set_name(include_path.string());
     f->set_type(common::model::source_file_t::kHeader);
     f->set_id(common::to_id(include_path));
+    f->set_system_header(true);
 
     const auto f_id = f->id();