Manifold is a Java compiler plugin, its features include Metaprogramming, Properties, Extension Methods, Operator Overloading, Templates, a Preprocessor, and more.

Proxy: Next Generation Polymorphism in C++

MOVED TO GITLAB

Tasty, versatile, nutritious; goes with many things in .net.

Runtime duck type checking utilities for TypeScript.

A New, Interactive Approach to Learning Ruby

Zen is a general purpose programming language designed to build simple, reliable and efficient programs.

Create Joi validation code for MySQL databases

Duck-Typed Programming in C

Interpreter for old Elara specification, written in Go

Useful stuff missing from .NET for example duck typing, CSP channels, caching, money, typed ids...

🦆 Better read-only Protocols for mypy

Helena is a minimalist programming language inspired by Tcl, Unix shells, and the Unix philosophy in general

A collection of tools to enforce duck typing based interfaces in Ruby.

A minimalist runtime type checking utility for duck typing

A macro to generate constructor to instanicate structs from JsValue using duck-typing.

Duck-Typing C library based on ooc.pdf

👊 Human-readable, fast and boilerplate-free contract programming (precondition checks) for JavaScript.

Library for FP sugar

Zero-dependencies light-weight library for modeling, validating and sanitizing data 🦆 🐵 👁