Added custom method type destructor filter

src/config/config.cc

@@ -67,6 +67,8 @@ std::string to_string(method_type mt)
     switch (mt) {
     case method_type::constructor:
         return "constructor";
+    case method_type::destructor:
+        return "destructor";
     case method_type::assignment:
         return "assignment";
     case method_type::operator_:

src/config/config.h

@@ -39,6 +39,7 @@ enum class method_arguments { full, abbreviated, none };
 
 enum class method_type {
     constructor,
+    destructor,
     assignment,
     operator_,
     defaulted,

src/config/yaml_decoders.cc

@@ -231,6 +231,8 @@ template <> struct convert<method_type> {
         const auto &val = node.as<std::string>();
         if (val == to_string(method_type::constructor))
             rhs = method_type::constructor;
+        else if (val == to_string(method_type::destructor))
+            rhs = method_type::destructor;
         else if (val == to_string(method_type::assignment))
             rhs = method_type::assignment;
         else if (val == to_string(method_type::operator_))