Added parents (base classes) diagram filter

src/config/config.h

@@ -69,6 +69,8 @@ struct filter {
 
     std::vector<std::string> subclasses;
 
+    std::vector<std::string> parents;
+
     std::vector<std::string> specializations;
 
     std::vector<std::string> dependants;

src/config/yaml_decoders.cc

@@ -275,6 +275,9 @@ template <> struct convert<filter> {
         if (node["subclasses"])
             rhs.subclasses = node["subclasses"].as<decltype(rhs.subclasses)>();
 
+        if (node["parents"])
+            rhs.parents = node["parents"].as<decltype(rhs.parents)>();
+
         if (node["specializations"])
             rhs.specializations =
                 node["specializations"].as<decltype(rhs.specializations)>();

src/config/yaml_emitters.cc

@@ -69,6 +69,8 @@ YAML::Emitter &operator<<(YAML::Emitter &out, const filter &f)
             << f.specializations;
     if (!f.subclasses.empty())
         out << YAML::Key << "subclasses" << YAML::Value << f.subclasses;
+    if (!f.parents.empty())
+        out << YAML::Key << "parents" << YAML::Value << f.parents;
 
     out << YAML::EndMap;
     return out;