Clutch is an expression-oriented and object-oriented modern programming that compiles to JavaScript.

// fib(n) -> if n < 2 then n else fib(n - 1) + fib(n - 2)
function fib(n) {
  return n < 2 ? n : fib(n - 1) + fib(n - 2);
}

Clutch's goals:

• Make functional programming a delight but keep aproachable to traditional use
• Defaults that prefer immutability and optimizations
• Low overhead compilation and interpoability to and with JavaScript

STATUS: Highly experimental. Currently is a CoffeScript-like tool that does a 1:1 transpilation of most of Clutch's syntax to the equivalent in JavaScript. The goal, of course, is to become a complete static language, so we are pretty far from that!

There is a simple script, npm run clc, which supports an experimental CLI:

# Compiles and outputs path/to/file.cl.js
$ npm run clc -- path/to/file.cl

To print the debug AST tree instead of JavaScript, add --parse or -p:

# Prints to stdout
$ npm run clc -- path/to/file.cl -p

To run in worker-mode, i.e. run the CLI and continously receive input:

# Write on stdin. Two newline characters triggers a compile
$ npm run clc -- -w

• Grammar
• Semantics