Suppose I have this class: <div class="highlight highlight-source-c++ notranslate

EDIT: Success! It works with refl::deor::get_attribute

How to resolve the non-const signature of a class method. about refl-cpp HOT 2 OPEN

rpatters1 commented on June 12, 2024

How to resolve the non-const signature of a class method.

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rpatters1 commented on June 12, 2024

Would it be possible to add a version of REFL_FUNC that takes a function pointer? That seems like the most efficient way to handle overloads. Usage would look something like:

REFL_FUNC_PTR(MyMethod, static_cast<const char*(*)(int, bool)>(&MyClass::MyMethod))

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rpatters1 commented on June 12, 2024

EDIT: Success! It works with refl::descriptor::get_attribute<func_ptr>. The code as modified below works.

template <typename Func>
struct func_ptr : refl::attr::usage::member
{
   Func func;
   constexpr func_ptr(Func func) : func(func) {}
  
};

REFL_AUTO(type(Foo), func(getPtr, func_ptr(static_cast<char*(foo::*)()>(&getPtr))))

// and in the central handler routine:

   constexpr auto type = refl::reflect<tinyxml2::XMLNode>();
   constexpr auto members = get_members(type);
   for_each_unordered(members, [&](auto member)
   {
      if constexpr(refl::descriptor::has_attribute<func_ptr>(member))
      {
         const auto fptr = refl::descriptor::get_attribute<func_ptr>(member).func;
      }
      else
      {
         const auto fptr = refl::descriptor::get_pointer(member);
      }
   });

It also works if you want to use a proxy function instead of the class member. Unfortunately the REFL_FUNC macro does not appear to be compatible with lambdas or std::function, but that's a small quibble.

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