Andrey Listopadov

Tags / clojure

Quite recently I’ve been working on my asynchronous programming library for Fennel, and fiddling with clojure.core.async at the same time for my other project. I’ve found an interesting function, called pipeline-async, which seemed to be a good fit for my task. Here’s the documentation for this function:

Recently I’ve stumped upon a Reddit thread about defining a function that you can call a limited amount of times in Rust, with compile-time check, and I wondered if I can make the same thing in Clojure.

Some time ago I ported most of Clojure’s core namespace to Fennel and made it into a library called fennel-cljlib. This was my first library for Fennel, so it wasn’t really great in terms of how it was implemented. While it was making Fennel more like Clojure syntax-wise, which I like, it wasn’t following Clojure’s semantics that well.
A while ago I’ve watched this amazing talk: Condition Systems in an Exceptional Language by Chris Houser. And more recently I’ve found one interesting library called farolero, which provides a set of functions and macros that mimic Common Lisp’s condition system. So I was generally interested in the topic and decided to give it a shot and try both approaches.
Today we’ll take a look at an interesting Java library, called PF4J, which describes itself as a Plugin Framework for Java. The main purpose of this library is to provide a way of detecting, initializing, and using plugins to extend your Java application with new features without the need to modify the code.
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