loon

Thanks :) Check out the code - it's Loon! https://github.com/ecto/loon/blob/main/web/src/pages/guide/o...

I got really excited reading this! The docs site is very polished and hypes up lots of features which click with things I've been wanting out of a language. But then I went to the repository [0] and realized that this is a week-old project, with every single commit written by Claude. I went to the playground page [1] and tried the example for effects, a headline feature and what drew me in the most, but it threw an "unbound symbol" error. I thought maybe the example could just be out-of-date, so I tried the example under the "Algebraic effects" heading on the homepage, which shows a different syntax, but that threw a parse error. The "Pattern matching" example is supposed to return 78.5, but it returns 15.700000000000001 when run in the playground. The example for "Mutation" on the ownership docs page [2] throws "unbound symbol 'set!'". T

Apparently the site itself is written in Loon. The HTML is just a static shell that loads a `boot.js` script[1] that runs some WASM that compiles and evals the Loon source files. I found the source code here[2]. Definitely cool in concept, but very performance-intensive and slow. [1]: https://loonlang.com/boot.js [2]: https://github.com/ecto/loon/tree/main/web

loon is a lisp! https://github.com/ecto/loon [type Shape [Circle Float] [Rect Float Float]] [fn area [s] [match s [Circle r] => [* 3.14 r r] [Rect w h] => [* w h]]] [area [Circle 5.0]]