https://github.com/ascandone/kestrel-lang

🦅 A pure, strongly typed functional language that compiles to js
https://github.com/ascandone/kestrel-lang

compiler functional-programming javascript typechecker

Last synced: about 1 month ago
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🦅 A pure, strongly typed functional language that compiles to js

• Host: GitHub
• URL: https://github.com/ascandone/kestrel-lang
• Owner: ascandone
• License: mit
• Created: 2024-01-14T10:35:26.000Z (12 months ago)
• Default Branch: main
• Last Pushed: 2024-11-19T12:30:59.000Z (about 1 month ago)
• Last Synced: 2024-11-19T12:51:54.821Z (about 1 month ago)
• Topics: compiler, functional-programming, javascript, typechecker
• Language: TypeScript
• Homepage:
• Size: 1.16 MB
• Stars: 4
• Watchers: 2
• Forks: 0
• Open Issues: 14
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Kestrel lang 🦅

[![npm](https://badgen.net/npm/v/kestrel-lang)](https://www.npmjs.com/package/kestrel-lang)

[![CI](https://github.com/ascandone/kestrel-lang/actions/workflows/ci.yml/badge.svg)](https://github.com/ascandone/kestrel-lang/actions/workflows/ci.yml)

[![codecov](https://codecov.io/gh/ascandone/kestrel-lang/graph/badge.svg?token=rHjOLSg3xg)](https://codecov.io/gh/ascandone/kestrel-lang)

Kestrel is a pure, strongly typed functional language that compiles to js.

```rust

// Type is inferred as `Fn(Int) -> String`

pub let fizz_buzz = fn n {

  match (n % 3, n % 5) {

    (0, 0) => "FizzBuzz",

    (0, _) => "Fizz",

    (_, 0) => "Buzz",

    _ => String.from_int(n),

  }

}

```

Take a look at the [language tour](https://github.com/ascandone/kestrel-lang/blob/main/language-tour.md) to learn more. You can find some examples by looking at the standard library [implementation](https://github.com/ascandone/kestrel_core/tree/main/src)

### Get started

> You can try kestrel without installing it on the [online playground](https://kestrel-playground.vercel.app/).

Install the `kestrel` cli using npm:

```bash

npm install -g kestrel-lang

```

Lsp integration is available as a [vscode extension](https://marketplace.visualstudio.com/items?itemName=ascandone.kestrel-vscode).