2024 LLVM Developers' Meeting talk
Debugging optimized code is frustrating: often, variables are missing. But some of these variables could be salvaged. In this talk, we will present a new analysis that detects when variables are lost in the compiler. This has two advantages: It allows to focus work on fixing optimizer passes that lose the most debug variables, and, by running it on real-world code, it also makes it easy to find concrete test cases where variable debug info is lost. We will use the work done on passes in the Swift frontend as an example, where we were able to increase the number of variables available in LLDB using this approach.
YouTube video | Slides | Conference Website
EK is a mixfix dynamic functional strict and impure programming language.
Meaning:
- Mixfix: Functions and operators are the same thing, and can be defined as prefix, suffix, infix, or you can mix and match. How functions are called is completely customizable.
- Dynamically typed: Types are not known at compile time and have to be checked at runtime.
- Functional: The language is based on function composition. Everything is a function.
- Strict by default: Expressions are evaluated immediately, leading to less confusion around order of operations. Functions can choose to make arguments lazy, which is the case for
if and && among others, to support short circuiting. - Impure: Functions can have side effects, such as printing, freely.
Hello World
import std
fn main = print "Hello, World!"
Learn more...
GitHub Repository | Slides (French) | Getting Started with EK (Wiki)
This project is an iOS/watchOS/web Swift app to convert between the Gregorian Calendar and the French Republican Calendar from 1793
Features:
- Convert dates between Gregorian and Republican calendars, in app or on the web
- Save dates in your favorites on iOS and watchOS, so you don't forget them!
- Convert the birthday of your contacts so you can celebrate their republican birthday
- Add a complication on your watch face to always have the current republican date
- Add a widget on your iPhone to also have it there
- Ask Siri the Republican date by adding the shortcut
- Supports both the original variant and the Romme variant
- Convert between SI Time and Decimal Time, the system with 10 hours, 100 minutes, and 100 seconds!
The app is 100% written in Swift, and is open source! (Split in 3 repositories: core converter, iOS/watchOS app, web app)
The web app uses Swift WebAssembly and Tokamak to run in the browser.
View App Store Page | Official Website (French) | Online Converter | Core GitHub Repository
This project is an iOS/watchOS/macOS Swift app to view school information. Most high schools in France use Pronote to handle and share school information with students and parents. The official app for Pronote was very limited, therefore I made this app.
Features:
- View your school schedule, homework, grades, classes content, absences, messages from teachers, announcements from your school, upcoming exams, etc.
- See graphs of the evolution of your grade averages
- Dark mode
- Notifications before every class
- Daily recap including tomorrow's homework, new grades and their impact on your point averages, classes to revise, etc.
- Widgets for your school schedule
- Ask information about your schedule or your grades to Siri
- See your next class in a complication on your watch face
- Also a game: Unlock alternative app icons by having good grades
- Automatically synced amongst your devices
The app is written in Swift, the backend is written in JavaScript (NodeJS) using Puppeteer, and with a Python watchdog.
The development began in October 2019, it was available on the App Store between 2 September 2020 (version 1.0) and 20 April 2021 (version 4.5).
It has been updated 18 times on iOS and 14 times on macOS, and the monorepo has 1246 commits.
This project is a Java desktop hex file editor, with syntax highlighting.
Features:
- View and Edit files in Hexadecimal
- Supports selection, Copy/Paste, Insert, Overwrite, Delete bytes
- Have syntax highlighting for multiple formats (currently GIF, SNI, COR...)
- See and edit properties about bit fields and bytes for supported formats (currently GIF)
- View a Preview of the file in real time (for GIF, SNI)
- Supports Find to find a sequence of bytes in the file, a string, or an encoded number
The app is written in Java and is open source. You can make your own TokenMaker subclass if you want to support a new file format.
View Product Page | GitHub Repository
This website is generated using Publish, using some CSS adapted from my older website, ElementalCube. It is deployed automatically using Cloudflare Pages.
