grace
boba
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grace
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August 2022 monthly "What are you working on?" thread
I've made a lot of great progress on Grace, my bytecode interpreted language. Its syntax is inspired by Python, but it's very opinionated with some more "rigid" semantics. While there are probably some bugs I need to find and weird syntax errors I haven't tried yet that will break the compiler, it's got functions, control flow, file importing, built in primitive types and lists and dictionaries, and exceptions fully implemented.
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C++ Show and Tell - April 2022
I've been working on my own interpreted language Grace (https://github.com/ryanjeffares/grace) using C++17. It's similar to Python and Ruby, but I intend on using reference counting as opposed to a garbage collector. Top priority now are classes, functions as first class objects, importing other files, native functions, and squeezing out some more performance - most operations are really fast but my function calls are a serious bottleneck, will need a refactor. It's my first lang after following Robert Nystrom's Crafting Interpreters and some other resources, been a tonne of fun!
boba
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AG unification is the solution for type inference with scientific units
I've done a small implementation, used in type inference, in my language Boba. And you are correct, I used the linear equation solving method.
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November 2022 monthly "What are you working on?" thread
The vast majority of October's improvements on Boba were type system and runtime bug fixes. In particular, the effect handler/delimited continuation semantics were hopelessly busted beyond a few simple examples I'd fixated on.
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October 2022 monthly "What are you working on?" thread
September was another productive month for Boba, which is starting to get more 'quality of life' improvements rather than broad new features. That doesn't make the work less important: one of the bug fixes to the type inference engine last month caught a previously unseen bug in the core Boba libraries!
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Unit Type System
Also worth checking out is Adam Gundry's work on type inference for UoM types. Or, if you want an example implementation of the Abelian unification used in standard type inference extended with UoM types, you can reference my implementation, based on solving linear equations.
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September 2022 monthly "What are you working on?" thread
August was a surprisingly productive month for the Boba compiler. A few highlights:
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August 2022 monthly "What are you working on?" thread
The next large feature for Boba (a general-purpose concatenative language) is language integrated property tests.
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Soft-launch Boba: a statically-typed concatenative programming language
That's a good question! I wrote up some of my thoughts on the benefits of Go as a backend, but there's also a historical component here. The first backend I was experimenting with was compile-to-C plus a C-based runtime. Go was closer to C than C# for what I needed at the time and I thought had a nicer concurrency story as a backend.
What are some alternatives?
Jinx - Embeddable scripting language for real-time applications
Forscape - Scientific computing language
RESTCpp - Cross Platform Multi threaded REST API / HTTP Server framework using thread-pooling implementation with modern C++
wort - A core concatenative programming language with variables and first-rank polymorphic type inference
rodin - Modern C++17 finite element method and shape optimization framework.
butter - A tasty language for building efficient software. WIP
kuroko-wasm-repl - In-browser REPL for Kuroko
awesome-low-level-programming-languages - A curated list of low level programming languages (i.e. suitable for OS and game programming)
minithesis - A very minimal implementation of the core idea of Hypothesis
xvm - Ecstasy and XVM
chrgfx - Converts to and from tile based graphics from retro video game hardware
ShnooTalk - ShnooTalk is a new programming language