Top 23 C++ Reflection Projects

• entt

  79 9,577 9.8 C++

  Gaming meets modern C++ - a fast and reliable entity component system (ECS) and much more

Project mention: Using Jolt with flecs & Dear ImGui: Game Physics Introspection | dev.to | 2024-04-17

EnTT is a popular alternative to flecs for C++, which has different performance/memory characteristics.

• Magic Enum C++

  44 4,492 8.0 C++

  Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code

Project mention: What C++ library do you wish existed but hasn’t been created yet? | /r/cpp | 2023-07-08

I'm not sure this is quite what you're asking for, but this library has been super helpful to me in the past : https://github.com/Neargye/magic_enum

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• rttr

  2 3,009 0.0 C++

  C++ Reflection Library

  

• Nameof C++

  5 1,982 5.3 C++

  Nameof operator for modern C++, simply obtain the name of a variable, type, function, macro, and enum

• cista

  4 1,681 7.7 C++

  Cista is a simple, high-performance, zero-copy C++ serialization & reflection library.

• Better Enums

  5 1,597 3.7 C++

  C++ compile-time enum to string, iteration, in a single header file

Project mention: How to convert an enum to string in C++ | news.ycombinator.com | 2023-09-30

I really like better_enums instead of magic_enums. There’s no limit on enum size with it: http://aantron.github.io/better-enums/

It was heavily used at a former employer of mine, so definitely a solid production-ready solution.

• pfr

  4 1,280 7.9 C++

  std::tuple like methods for user defined types without any macro or boilerplate code

  

Project mention: Rooting for P1061 "Structured Bindings can introduce a Pack" | /r/cpp | 2023-10-19

This single feature opens a world of new possiblities. For example, it makes implementing "getting the number of fields" trivial. Furthrmore, and much more importantly, it enables turning a struct into a tuple. Currently, this can only be done by enumerating cases (therefore it's not fully generic), as with Boost PFR. By the way, PFR greatly simplifies our codebases, especially for parts with serialization and/or reflection.

• SaaSHub

  www.saashub.com featured

  SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

  

• refl-cpp

  3 1,015 0.0 C++

  Static reflection for C++17 (compile-time enumeration, attributes, proxies, overloads, template functions, metaprogramming).

Project mention: Out of bounds memory access in V8 in Google Chrome prior to 120.0.6099.224 | news.ycombinator.com | 2024-01-25

You'd be surprised how much friction you'd have for C++ reflection. First, since it's a custom build step, you can do a mix of custom code gen and C++ constexpr/consteval for static reflection. Here's a header-only implementation for adding compile time reflection purely within the language [1]. And v8 already does dynamic code gen as part of its build process (to generate the snapshot to speedup instantiation of the isolate). Dynamic reflection is a must since JS is a dynamic language with reflection support.

Now of course, I don't know the specific details of reflection needed for the abstractions you reference and clearly V8 is still doing some amount of manual IR generation, so it's possible it would be a substantial investment to actually retrofit those techniques into v8. One would have to do a careful analysis of historical security exploits & specific techniques and their ability to prevent to figure out if it's worth adding those abstractions (especially since there is a potential performance tradeoff as you mention). As I said, I think there's insufficient research in this area to establish a compelling body of best practices (not to take away from the contributions of the GraalJS team to this space).

[1] https://github.com/veselink1/refl-cpp

• glaze

  18 927 9.9 C++

  Extremely fast, in memory, JSON and interface library for modern C++

Project mention: [C++20] to_tuple with compile-time names | /r/cpp | 2023-12-05

• structopt

  3 450 0.0 C++

  Parse command line arguments by defining a struct (by p-ranav)

• alpaca

  5 429 5.0 C++

  Serialization library written in C++17 - Pack C++ structs into a compact byte-array without any macros or boilerplate code (by p-ranav)

• avendish

  34 416 8.5 C++

  declarative polyamorous cross-system intermedia objects

  

• Refureku

  5 199 0.0 C++

  Cross-platform C++17 Runtime Reflection Library

• RareCpp

  1 116 7.2 C++

  Creating a simpler, more intuitive means of C++ reflection

• meta.hpp

  2 113 9.2 C++

  C++20 Dynamic Reflection Library

• serdepp

  4 99 7.9 C++

  c++ serialize and deserialize adaptor library like rust serde.rs

• easy_reflection_cpp

  1 90 8.1 C++

  Reflection brings the best way to serialize/deserialize json and yaml in C++

• metapp

  6 79 4.7 C++

  C++ runtime reflection library

• pfr_non_boost

  1 59 2.7 C++

  Boost.PFR without the boost namespaces

• enum.hpp

  2 43 0.0 C++

  C++17 compile-time enum reflection library

• enum_name

  1 19 7.4 C++

  Converting (scoped)enum values to string names written in C++>=11.

• reflect

  2 14 3.5 C++

  A single file header only static reflection library for C++20. (by M-Fatah)

• reflite

  1 9 0.0 C++

  C++ header-only data reflection/introspection

• SaaSHub

  www.saashub.com featured

  SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

  

C++ Reflection related posts

• Out of bounds memory access in V8 in Google Chrome prior to 120.0.6099.224

  1 project | news.ycombinator.com | 25 Jan 2024

• Rooting for P1061 "Structured Bindings can introduce a Pack"

  1 project | /r/cpp | 19 Oct 2023

• What C++ library do you wish existed but hasn’t been created yet?

  18 projects | /r/cpp | 8 Jul 2023

• A basic reflection-like system for editing object fields in a C++ game engine

  5 projects | /r/cpp_questions | 23 May 2023

• enum_name (yet another enum to/from string conversion utility >=C++11)

  4 projects | /r/cpp | 19 Mar 2023

• what is the best API for serialization?

  3 projects | /r/cpp | 13 Feb 2023

• Behind the magic of magic_enum

  4 projects | /r/cpp | 12 Feb 2023
• A note from our sponsor - SaaSHub
  www.saashub.com | 31 May 2024

  SaaSHub helps you find the best software and product alternatives Learn more →

Index

Sponsored

SaaSHub - Software Alternatives and Reviews

SaaSHub helps you find the best software and product alternatives

www.saashub.com

Do not miss the trending C++ projects with our weekly report!