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Apple's use of Swift and SwiftUI in iOS 17
Apple’s use of Swift and SwiftUI in iOS 17
Topics /
Programming Languages
The most popular blog posts about programming languages on Hacker News. 264 posts.
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Switching from C++ to Rust
Ferris meme Discussion on HackerNews and Lobsters. I have been writing C++ professionally for the last 4 years and 3 months ago I started a new job in Rust....
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Programming languages going above and beyond
Dafny is a programming language which often genuinely amazes me.
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Railway Oriented Programming
Slides and videos explaining a functional approach to error handling
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How Python virtual environments work
After needing to do a deep dive on the venv module (which I will explain later in this blog post as to why), I thought I would explain how virtual environments work to help demystify them. Why do virtual environments exist? Back in my the day, there was no concept
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Why Lisp Syntax Works
On uniform vs. specific syntax.
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Coroutines for Go
This post is about why we need a coroutine package for Go, and what it would look like. But first, what are coroutines?
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Memory-efficient enum arrays in Zig
Proper support for sum types or tagged unions have become table stakes for systems programming languages. However, they can incur a lot of memory fragmentation that's not trivial to avoid without good support for metaprogramming. This post goes into Zig's powerful comptime feature, and how it allows some radical…
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Leaving Haskell behind
For almost a complete decade—starting with discovering Haskell in about 2009 and right up until switching to a job where I used primarily...
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Programming Language Inventor or Serial Killer? (2003)
Try to spot who liked hacking away at corpses rather than computers
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Zig as an alternative to writing unsafe Rust
There are endless debates online about Rust vs. Zig, this post explores a side of the argument I don't think is mentioned enough.
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Thoughts on Elixir, Phoenix and LiveView after 18 months of commercial use
I’ve been leading a team developing an application using Elixir, Phoenix and LiveView for the last 18 months and accumulated some thoughts on the stack. For the most part, it has been a very pleasant experience.
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The Power of Prolog
Facets of Prolog
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TypeScript is surprisingly ok for compilers
There are two main historical trends when choosing an implementation language for something compiler-shaped.
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Microfeatures I'd like to see in more languages
There are roughly three classes of language features: Features that the language is effectively designed around, such that you can't add it after the fact....
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When Rust hurts
Why I am not enjoying programming in Rust.
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A look at Unison: a revolutionary programming language
Unison is a pure functional programming language that comes with a few revolutionary ideas. Seriously, it makes everything we’re used to, like long builds, dependency version conflicts, tests that run every single build even when nothing checked by them has changed, manual encoding and serialization of data, and lots…
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How many lines of C it takes to execute a + b in Python
Understand the mechanics of dynamic dispatch implementation in CPython
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A decade of developing a programming language
In 2013, I had an idea: "what if I were to build my programming language?". Back then my idea came down to "an interpreted language that mixes elements from Ruby and Smalltalk", and not much more.
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Writing a Compiler is Surprisingly Easy (part 1)
Part 1: expressions, arithmetic Part 2: statements, control flow Ever since I was a teenager I wanted to create my own systems pr...
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Moving from Rust to C++
Note to readers: this is an April Fools post, intended to satirize bad arguments made against Rust. I have mixed feelings about it now, as I think people who understood the context appreciated the humor, but some people were confused. That’s partly because it’s written in a very persuasive style, and I mixed in some…
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Java 21: The Nice, the Meh, and the Momentous
When Java 17 was released in 2021 as a “long term support” version, I wrote an article dissecting its features and came to the conclusion that it had a few nice features, but none that were compelling reasons to upgrade. Except one: tens of thousands of bug fixes.
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My First Impressions of Nix
Nix is a tool for configuring software environments according to source files. I’ve been hearing more and more about Nix on Hacker News and Twitter. The idea of it appeals to me, so I’ve been tinkering with it over the past few weeks. My history with infrastructure as code Ten years ago, I discovered Salt, a tool that…
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Making C++ safe without borrow checking, reference counting, or tracing GC
I've spent most of the last decade exploring this area (mainly to design Vale 's memory safety) and I've discovered some surprising things .
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What the hell is Forth? (2019)
Forth is perhaps the tiniest possible useful interactive programming language. It is tiny along a number of dimensions: The amount of c...
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Thread-per-core
I want to address a controversy that has gripped the Rust community for the past year or so: the choice by the prominent async “runtimes” to default to multi-threaded executors that perform work-stealing to balance work dynamically among their many tasks. Some Rust users are unhappy with this decision, so unhappy that…
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Lisp Badge LE
This is a self-contained low-power computer with its own display and keyboard that you can program in uLisp, a version of the high-level language Lisp for microcontrollers:
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Ericsson to WhatsApp: The Story of Erlang
How a programming language from Sweden powered one of the most valuable startup of the 2010s.