Navigate a tree with wrapped parameters using glz::seek

[ffranzoni]

I need to use glz::seek to access values in a configuration using JSON Pointer strings to address parameters.

The configuration objects are something like this:

struct some_other_data {
  Parameter<std::string> status;
};

struct some_data {
  Parameter<some_other_data> other_data;
};

And the Parameter class is a templated wrapper with getter and setter methods, used also to perform some other logic (e.g. validation, value change notification and so on...).
A complete example of (unfortunately) not working code can be found here: https://godbolt.org/z/7dfxqdTcj

For Parameter reflection, I defined the Parameter::glaze::value struct as I found in the documentation under the Value Types section, but in this way the wrapped value is directly returned and the getter/setter logic is lost.

I also tried to return the Parameter itself from the Parameter::glaze::value lambda, but this obviously resulted in a application crash due to infinite recursion triggered by glz::seek when I try to access a nested Parameter.

I tried to specify the Parameter::glaze::value as a glz::custom such as in the example I found in json_test.cpp but without any success:

glaze/tests/json_test/json_test.cpp

Line 7530 in 4a6b016

static constexpr auto value = glz::custom<&T::read, &T::write>;

Is what I am trying to do possible in any way?
Thank you