Dust lang

A language that actually fits in your head, with lots of sugar in it

Dust is a small functional (everything is an expression), untyped language with a minimal core AST.

let fizz_buzz = fn n {
  match #(n % 3, n % 5) {
    #(0, 0) => "FizzBuzz",
    #(0, _) => "Fizz",
    #(_, 0) => "Buzz",
    _ => String.show(n),
  }
}

Language tour

You can find a complete guide of Dust language here

TL;DR: language cheatsheet

Try Online

You can try Dust without installing it in the online playground

Install locally

For now the CLI has to be built locally using cargo build --release

A CLI is included to create and run Dust projects

Usage: dust <command> [<args>]

Dust lang cli

Options:
  --help            display usage information

Commands:
  run               Run a dust script
  init              Initialize a Dust project
  repl              Run the Dust repl
  fmt               Format a Dust script

Roadmap

Dust is still missing basic functionality, such as a variety of data structures, nicer error messages, or developer tools such as a test runner or a LSP. I'm tracking the missing features in this notion page.