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trampa

trampa

Trampolines, to emulate tail-call recursion.

Build Status NPM version Dependency Status devDependency Status Code Climate

Synopsis

var trampa = require("trampa");
 
function loop(n, acc) {
  return n === 0 ? trampa.wrap(acc) : trampa.lazy(function () {
    return loop(- 1, acc + 1);
  });
}
 
loop(123456789, 0).run(); // doesn't cause stack overflow! 

API

  • isTrampoline(t: obj): bool — Returns, whether t is a trampolined object.

  • wrap(t: Trampoline a | a): Trampoline a — Wrap t into trampoline, if it's not already one.

  • lazy(t : () -> Trampoline a | a) — Wrap lazy computation into trampoline. Useful when constructing computations.

  • Trampoline.jump(f : a -> b | Trampoline b)map or flatmap trampoline computation. Like .then for promises.

  • Trampoline.run(): a — Run the trampoline synchronously resulting a value.

Changelog

  • 1.0.02015-07-14 — Initial release