Started working on inheritance

Author: liuzicheng1987

include/rfl/internal/cpp26/get_field_names.hpp

@@ -35,19 +35,31 @@ consteval auto get_field_names_impl() {
 
 template <auto _i, auto _j>
 consteval bool is_same() {
-  static_assert(_i == _j, "Mismatched types");
+  static_assert(_i == _j, "Mismatched lengths");
   return _i == _j;
 }
 
+template <class Type>
+consteval std::vector<std::meta::info> get_members() {
+  constexpr auto ctx = std::meta::access_context::current();
+
+  std::vector<std::meta::info> members;
+
+  constexpr auto nonstatic_members = std::define_static_array(
+      std::meta::nonstatic_data_members_of(^^Type, ctx));
+
+  template for (auto member : nonstatic_members) { members.push_back(member); }
+
+  return members;
+}
+
 template <class T>
 consteval auto get_field_names() {
   using Type = std::remove_cvref_t<T>;
   if constexpr (std::is_pointer_v<Type>) {
     return get_field_names<std::remove_pointer_t<Type>>();
   } else {
-    constexpr auto members =
-        std::define_static_array(std::meta::nonstatic_data_members_of(
-            ^^Type, std::meta::access_context::current()));
+    constexpr auto members = std::define_static_array(get_members<Type>());
 
     using TupleT = decltype(bind_to_tuple(std::declval<Type&>()));
 

tests/json_c_arrays_and_inheritance/test_inheritance3.cpp

@@ -0,0 +1,39 @@
+#ifdef REFLECTCPP_USE_CPP_REFLECTION
+
+// Only supported with C++26 reflection
+
+#include <gtest/gtest.h>
+
+#include <cassert>
+#include <rfl.hpp>
+
+#include "rfl/num_fields.hpp"
+
+namespace test_inheritance3 {
+
+struct Base {
+  int x;
+};
+
+struct Derived : public Base {
+  int y;
+};
+
+TEST(json, test_inheritance3) {
+  Derived derived;
+  const auto derived_view = rfl::to_view(derived);
+
+  constexpr auto name_x =
+      rfl::tuple_element_t<0, typename rfl::named_tuple_t<T>::Fields>::name();
+  constexpr auto name_y =
+      rfl::tuple_element_t<1, typename rfl::named_tuple_t<T>::Fields>::name();
+
+  static_assert(name_x == "x");
+  static_assert(name_y == "y");
+
+  EXPECT_TRUE(true);
+}
+
+}  // namespace test_inheritance3
+
+#endif