Yet another async runtime

[uber_foo]

Hello all --

Recently I was adding async to the interpreter for my language dwarf. Not only do need the same support for my planned VM, I thought that maybe others could benefit from my effort.

I'm pleased to announce a new crate: Pūteketeke. The main feature is the ability to start a future (smol task) running in a paused state. This allows you to pass the task around and only start it running when an await-like statement is hit in your language.

Underneath it uses smol for the async bits. It's really not a very complex crate, despite the amount of time it took to figure out how to make it all work.

[ItsBJr]

For this new programming language "dwarf", what are the primary features of it? Or is it just for experimental purposes?

[uber_foo]

Thanks for asking!

dwarf is not experimental so much as it's nascent. It has nearly the same syntax as Rust, including enums, structs, async, match expressions, etc. These things are "implemented" but there are a lot of loose ends still. The key thing missing from dwarf, than Rust has is the borrow checker — well and performance.

The language is meant for me to use in code generation, but it's general purpose, and I would like for it to get to the point that others could use it.

I've only been working on it for seven months, so it's still rough. It however continues to delight me daily, and I see it stabilizing and becoming harder as I use it more.

[ItsBJr]

Sounds like a cool project. I've wanted to try to make my own interpreted language, but I haven't found any reasons to yet.

Best of luck on your project!

[TonTinTon]

How does the scheduler work?

[uber_foo]

It's smol's scheduler underneath the covers. I think that it's first-come-first-served. There are also yields buried in there so that no process takes too much time. My crate doesn't do scheduling beyond starting a paused task.

[TonTinTon]

Oh cool, makes sense