Hyeseong Kim cometkim

I've been writing Rust full-time with a small team for over a year now. Throughout, I've lamented the lack of clear best practices around defining error types. One day, I'd love to write up my journey and enumerate the various strategies I've both seen and tried. Today is not that day.

Today, I want to reply to a blog post that almost perfectly summarised my current practice.

Go read it; I'll wait!

Untagged Variants Proposal for ReScript

Introduction

Brief introduction to ReScript
Motivation for untagged variants
High-level overview of the proposal

Detailed Design

This for loop:

for (let i = 0, getI = () => i; i < 3; i++)
  console.log(getI());

unrolls to:

Structured concurrency and Lua (part 1)

John Belmonte, 2022-Sep

I've started writing a toy structured concurrency implementation for the Lua programming language. Some motivations:

use it as a simple introduction to structured concurrency from the perspective of Lua (this article)
learn the fundamental properties of structured concurrency and how to implement them
share code that could become the starting point for a real Lua library and framework

So what is structured concurrency? For now, I'll just say that it's a programming paradigm that makes managing concurrency (arguably the hardest problem of computer science) an order of magnitude easier in many contexts. It achieves this in ways that seem subtle to us—clearly so, since its utility didn't reach critical mass until around 2018[^sc_birth] (just as control structures like functions, if, and while weren't introduced to languages until long after the first compu

Intro

To install and update packages on Debian, Ubuntu, or most derived distributions, you use APT, the Advanced packaging tool, to download the packages and their dependencies, which uses dpkg to install them.

These notes go into the downloading part, as I think it's easy to get overwhelmed by how the repositories work. I will eventually turn this into a page on my website.

Repository

A repository is where the packages come from. It provides binary packages for an arbitrary selection of architectures as well as source packages. Repositories are APT's data source. [https://wiki.debian.org/DebianRepository]

Example

Name

Description

🗺🐘 1000+ PostgreSQL EXTENSIONs

This is a list of URLs to PostgreSQL EXTENSION repos, listed in alphabetical order of parent repo, with active forks listed under each parent.

⭐️ >= 10 stars
⭐️⭐️ >= 100 stars
⭐️⭐️⭐️ >= 1000 stars
Numbers of stars might not be up-to-date.

	#define J40_CONFIRM_THAT_THIS_IS_EXPERIMENTAL_AND_POTENTIALLY_UNSAFE
	#define J40_IMPLEMENTATION
	#include "j40.h"

	#ifdef __GNUC__ // stb_image_write issues too many warnings
	#pragma GCC diagnostic push
	#pragma GCC diagnostic ignored "-Wsign-conversion"
	#pragma GCC diagnostic ignored "-Wconversion"
	#endif
	#define STB_IMAGE_WRITE_IMPLEMENTATION

	We got a root project (project-a) which has a submodule (project-b). That submodule in turn has a submodule (project-c).
	Each project also contains some files.

	project-a @ 5r210h6/
	├─ some-file.a
	├─ other-file.a
	├─ third-file.a
	├─ project-b @ 196a095/
	│ ├─ some-file.b
	\| ├─ more-file.b

	/**
	* Typed Web Worker.
	*
	* type InputData = { name: string };
	* type OutputData = { nameLength: number }
	*
	* // main.js
	* const worker = createTypedWorker<InputData, OutputData>(worker);
	*
	* // worker.js