Top 23 compile-time Open-Source Projects

• BuildTimeAnalyzer

  0 4,279 3.1 Swift

  Build Time Analyzer for Swift

• compile-time-regular-expressions

  26 3,163 7.0 C++

  Compile Time Regular Expression in C++

Project mention: Why are strings and IO so complicated? | /r/cpp | 2023-12-07

CTRE (https://github.com/hanickadot/compile-time-regular-expressions) ranges::views (filter, transform, etc.) (C++20) str.find() + str.substr() freopen to stdin + cin >> extraction Parser libraries

• InfluxDB

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• utoipa

  15 1,847 8.1 Rust

  Simple, Fast, Code first and Compile time generated OpenAPI documentation for Rust

Project mention: What's everyone working on this week (23/2023)? | /r/rust | 2023-06-05

In case you didn't know https://github.com/juhaku/utoipa is really nice to generate openapi spec and have a swagger!

• lazy_importer

  1 1,492 4.2 C++

  library for importing functions from dlls in a hidden, reverse engineer unfriendly way

• cocoapods-binary

  2 1,293 0.0 Ruby

  integrate pods in form of prebuilt frameworks conveniently, reducing compile time

• xorstr

  3 1,057 0.0 C++

  heavily vectorized c++17 compile time string encryption.

• UNITS

  3 921 0.0 C++

  a compile-time, header-only, dimensional analysis and unit conversion library built on c++14 with no dependencies.

Project mention: I want some logically difficult c programs | /r/C_Programming | 2023-12-09

C++ Version

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• Aspect Injector

  1 728 4.6 C#

  AOP framework for .NET (c#, vb, etc)

Project mention: Aspect Injector VS Metalama - a user suggested alternative | libhunt.com/r/aspect-injector | 2023-12-07

• raytracer.hpp

  2 667 0.0 C

  Simple compile-time raytracer using C++17

• Rugby

  2 652 9.7 Swift

  🏈 Cache CocoaPods for faster rebuild and indexing Xcode project.

• static-assertions

  2 554 0.0 Rust

  Ensure correct assumptions about constants, types, and more in Rust

• ctpg

  8 448 3.4 C++

  Compile Time Parser Generator is a C++ single header library which takes a language description as a C++ code and turns it into a LR1 table parser with a deterministic finite automaton lexical analyzer, all in compile time.

• Python-Raytracer

  3 447 0.0 Python

  A basic Ray Tracer that exploits numpy arrays and functions to work fast.

• reflekt

  2 337 5.3 Kotlin

  A plugin for Kotlin compiler for compile-time reflection (by JetBrains-Research)

  

• au

  2 279 8.0 C++

  A C++14-compatible physical units library with no dependencies and a single-file delivery option. Emphasis on safety, accessibility, performance, and developer experience. (by aurora-opensource)

  

• pure_simd

  2 227 1.8 C++

  A simple, extensible, portable, efficient and header-only SIMD library!

• mp

  6 201 9.4 HTML

  C++17 ~~Template~~ Meta-Programming library

  

• eternal

  1 189 10.0 C++

  A C++14 compile-time/constexpr map and hash map with minimal binary footprint (by mapbox)

  

• nimja

  3 169 2.7 Nim

  typed and compiled template engine inspired by jinja2, twig and onionhammer/nim-templates for Nim.

Project mention: nimja VS happyx - a user suggested alternative | libhunt.com/r/nimja | 2023-05-24

• todo_by

  2 117 5.8 Rust

  Compile-time lifetimes for comments.

Project mention: todo_by: Compile-time lifetimes for comments. | /r/rust | 2023-05-13

Let me know what you think, and if you think you can help out with an issue that affects library authors, please share your insights!

• ctregex.zig

  1 117 0.0 Zig

  Compile time regular expressions in zig

Project mention: Compile time regular expression in C++ | news.ycombinator.com | 2023-09-12

Since other people are posting other lang implementations... someone did it for zig too (probably less polished than this C++ lib) [1]. It is nice that the regexes can be used at compile time too ().

--

: I think the difference between C++ template language and Zig comptime is that Zig's comptime is almost equal as Zig's regular language, whereas the experience of programming C++ templates almost feels like learning a separate, equally complex language.

1: https://github.com/alexnask/ctregex.zig

• Unchained

  5 106 7.0 Nim

  A fully type safe, compile time only units library. (by SciNim)

  

Project mention: GNU Units | news.ycombinator.com | 2023-08-03

Anything with a finite (200 is small even) number of units misses the algebraic structure of the problem mentioned in https://news.ycombinator.com/item?id=36988497 wherein multiplying|dividing two things gives you a (potentially) new unit which implies an open ended "space" of units.

To be concrete (hah!), in C++ a template meta-type with 12 signed integer parameters (6 numerators & 6 denominators for rational exponents of SI base units) might be one way to model it.

Unlike C++ template stuff, Nim macros (like Lisp macros) makes metaprogramming more like procedural programming - just against abstract syntax trees. I think that helps to shield some of this type complexity from users, but the documentation README https://github.com/SciNim/Unchained does better job than I can in an HN comment.

Of course, for unit system conversion, the number of dimensions (6 in SI, 3 in CGS/Gaussian) changes. So, for full generality you need compile-time (if you want static type integration/CT errors) linear algebra over a rational field (at least & conventionally) to project|inverse project. That might be theoretically possible in C++. I would think it very un-fun and unlikely to ever have been done. There's probably a Mathematica package, though.

• compile-time-ray-tracer-in-rust

  1 85 0.0 Rust

  Compile-Time Ray Tracer in Rust ported from C++

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compile-time related posts

• todo_by: Compile-time lifetimes for comments.

  3 projects | /r/rust | 13 May 2023

• Error formatter for template specializations

  2 projects | /r/cpp | 3 May 2023

• Compile-Time 'Fun' with Std.ranges

  1 project | news.ycombinator.com | 29 Apr 2023

• Is there comptime reflection in Rust proc-macro?

  3 projects | /r/rust | 11 Mar 2023

• Force compiler to construct strings dynamically on the stack (win64)

  1 project | /r/cpp | 29 Dec 2022

• Code criticism on decrypt function

  1 project | /r/cpp_questions | 21 Nov 2022

• Konst for Rust: Const equivalents of std functions, comparison, and parsing

  1 project | news.ycombinator.com | 9 Nov 2022
• A note from our sponsor - SaaSHub
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