Your standard library for metaprogramming

C++ Dependency Injection

[Boost].SML: C++14 State Machine Library

Discuss how to use / features, https://github.com/chakravala/Reduce.jl

Python with a Lissp. https://hissp.rtfd.io Ask, don't ask to ask. Answers may take a day. https://github.com/gilch/hebigo

spec-driven code generator

C++11 metaprogramming library

Data-centric metaprogramming for Scala

Learning Black Magic of Ruby Metaprogramming

Introduces macro/meta annotations @ aux, @ self, @ instance, @ apply, @ delegated, @ syntax