Nim is a compiled, garbage-collected systems programming language with a design that focuses on efficiency, expressiveness, and elegance (in that order of priority).

Meta-programming for Swift, stop writing boilerplate code.

Apache Groovy: A powerful multi-faceted programming language for the JVM platform

convert curl commands to Python, JavaScript, PHP, R, Go, Rust, Dart, JSON, Ansible, Elixir

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

Your standard library for metaprogramming

Manifold plugs into Java to supplement it with powerful features, from Type-safe Metaprogramming, Extension Methods, Operator Overloading, and Unit Expressions to an integrated Template Engine and a Preprocessor. All fully supported in IntelliJ IDEA and Android Studio. Simply add Manifold to your project and begin taking advantage of it.

Library to read, analyze, transform and generate Scala programs

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

DI: C++14 Dependency Injection Library

Refactoring and linting tool for Scala

Dependency Injection framework for Swift (iOS/macOS/Linux)

SML: C++14 State Machine Library

decorator

ES5 shim for ES6 Reflect and Proxy objects

Easy to use C++17 HTTP Server with no compromise on performances.

Code I use in my game for all serialization/deserialization/introspection stuff

Next generation API for .NET

A modern compile-time reflection library for C++ with support for overloads, templates, attributes and proxies

(pronounced dyna-mighty) flexes DLR muscle to do meta-mazing things in .net

The implementation of the Rascal meta-programming language (including interpreter, type checker, parser generator, compiler and JVM based run-time system)

Collection of presentations for advanced Python topics

💻 A Python library to create and deploy cross-platform native context menus. 💻

Love template metaprogramming

💎 Feel++: Finite Element Embedded Language and Library in C++

Minimal, simple, efficient, statically typed, compiled, meta programmable, safe and extensible systems programming language with a Lua flavor.