Simple `struct` static reflection system I use that tracks names, attributes (in my own code I also keep `constexpr` hashes of names) -- example gets fully inlined into `main()`

• xbow

  3 7 1.8 Python

  range-v3 views and actions for Arrow C++

An advanced usage example can be seen here. Arrow stores structs in structure of arrays layout, and I use Boost.Hana to do this conversion. My linked code consists of two chained range-v3 views (separated by '|' on line 308).

• hana

  4 1,633 5.4 C++

  Your standard library for metaprogramming

  

And then there's also the longstanding issue with default member initializers -- https://github.com/boostorg/hana/issues/409 -- which was a deal-breaker.The PROP system avoids this issue precisely by having the macro be as local as possible: the default member initializer is outside the macro. It does this while still letting you attach additional PropAttribs metadata (I'm not sure what additional metadata attachment looks like in Hana? haven't really tried). Default values and additional attributes are by and large quite more important to me in my use cases for reflection (component types in game ECS) than range syntax (everything I've needed and can think of needing is covered by for-each loop).

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