Mastodawn

Read Barry Revzin's blog [https://brevzin.github.io/c++/2024/09/30/annotations/] and it motivated me to update the C++26 Reflection support but with annotions to JSON Link. Code like

struct [[=daw::json::reflectable]] X {
  [[=daw::json::rename_json{"member1"}]]
  int m1;

  [[=daw::json::rename_json{"member2"}]]
  int m2;
};

Will (de)serialize to and from

{
  "member1": 42,
  "member2": 24
}

#cpp #cpp26 #reflection

Code Generation in Rust vs C++26

One of the things I like to do is compare how different languages solve the same problem — especially when they end up having very different approaches. It’s always educational. In this case, a bunch of us have been working hard on trying to get reflection — a really transformative language feature — into C++26. Fundamentally, reflection itself can be divided into two pieces:

Barry’s C++ Blog