Added option to enable rendering return types in sequence diagrams (fixes #93)

src/config/config.cc

@@ -166,7 +166,8 @@ void inheritable_diagram_options::inherit(
     relative_to.override(parent.relative_to);
     comment_parser.override(parent.comment_parser);
     combine_free_functions_into_file_participants.override(
-        combine_free_functions_into_file_participants);
+        parent.combine_free_functions_into_file_participants);
+    generate_return_types.override(parent.generate_return_types);
     debug_mode.override(parent.debug_mode);
     generate_metadata.override(parent.generate_metadata);
 }

src/config/config.h

@@ -445,6 +445,7 @@ struct inheritable_diagram_options {
         "comment_parser", comment_parser_t::plain};
     option<bool> combine_free_functions_into_file_participants{
         "combine_free_functions_into_file_participants", false};
+    option<bool> generate_return_types{"generate_return_types", false};
     option<std::vector<std::string>> participants_order{"participants_order"};
     option<bool> debug_mode{"debug_mode", false};
     option<bool> generate_metadata{"generate_metadata", true};

src/config/yaml_decoders.cc

@@ -513,6 +513,7 @@ template <> struct convert<git_config> {
 
 template <typename T> bool decode_diagram(const Node &node, T &rhs)
 {
+    // Decode options common for all diagrams
     get_option(node, rhs.glob);
     get_option(node, rhs.using_namespace);
     get_option(node, rhs.include);
@@ -566,6 +567,7 @@ template <> struct convert<sequence_diagram> {
 
         get_option(node, rhs.start_from);
         get_option(node, rhs.combine_free_functions_into_file_participants);
+        get_option(node, rhs.generate_return_types);
         get_option(node, rhs.relative_to);
         get_option(node, rhs.participants_order);
         get_option(node, rhs.generate_method_arguments);
@@ -752,6 +754,9 @@ template <> struct convert<config> {
         get_option(node, rhs.comment_parser);
         get_option(node, rhs.debug_mode);
         get_option(node, rhs.generate_metadata);
+        get_option(node, rhs.combine_free_functions_into_file_participants);
+        get_option(node, rhs.generate_return_types);
+
         rhs.base_directory.set(node["__parent_path"].as<std::string>());
         get_option(node, rhs.relative_to);
 

src/config/yaml_emitters.cc

@@ -289,6 +289,7 @@ YAML::Emitter &operator<<(
     }
     out << c.comment_parser;
     out << c.combine_free_functions_into_file_participants;
+    out << c.generate_return_types;
     out << c.participants_order;
     out << c.debug_mode;