https://github.com/rkrupinski/clojure-lite

Compiles an extremely small subset of clojure to JavaScript
https://github.com/rkrupinski/clojure-lite

Last synced: about 1 month ago
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Compiles an extremely small subset of clojure to JavaScript

• Host: GitHub
• URL: https://github.com/rkrupinski/clojure-lite
• Owner: rkrupinski
• Created: 2016-12-22T19:02:49.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2016-12-22T19:06:55.000Z (about 8 years ago)
• Last Synced: 2024-10-13T18:57:57.027Z (2 months ago)
• Language: JavaScript
• Size: 3.91 KB
• Stars: 4
• Watchers: 3
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# clojure-lite

*Disclaimer: this is a super-immature toy project :bowtie:*

`clojure-lite` compiles an extremely small subset of [clojure](https://clojure.org/) to JavaScript. That's pretty much all it does. Have fun!

It currently lets you:

- define and refer variables

- define and call functions

Other quirks:

- the standard library is limited to `+`, `-`, `*`, and `/`

- there's only one type: `number`

## Example

```clojure

(def PI 3.141592653589793)

(defn area [radius] (* PI radius radius))

(area 5)

```

is compiled to:

```javascript

const __lib = {};

__lib['*'] = function (...args) {

  return args.reduce((acc, curr) => acc * curr, 1);

};

let PI = 3.141592653589793;

function area(radius) {

  return __lib['*'](PI, radius, radius);

}

area(5);

```

## Usage

Programmatic:

```sh

$ npm install clojure-lite --save

```

```javascript

const cl = require('clojure-lite');

const compile = _.compose(

  cl.codegen,

  cl.parser,

  cl.lexer

);

const code = compile('(def answer 42)');

```

CLI:

```sh

$ npm install -g clojure-lite

```

```sh

$ echo '(def answer 42)' | cl > code.js

```

## Credits

- `lexer` heavily inspired by [[click]](https://www.codeproject.com/articles/345888/how-to-write-a-simple-interpreter-in-javascript).

- `parser` & `codegen` heavily inspired by [[click]](https://github.com/thejameskyle/the-super-tiny-compiler).