An "async" function to turn any `Computation` into a `Promise`

01-async.ts

import { evaluate, reset, shift, type Computation } from "https://deno.land/x/continuation@0.1.5/mod.ts";

function async<T>(op: () => Computation<T>): Computation<Promise<T>> {
  return reset(function*() {
    let { resolve, reject } = yield* shift(function*(k) {
      return new Promise((resolve, reject) => k({ resolve, reject }));
    });
    try {
      resolve(yield* op());
    } catch (error) {
      reject(error);
    }
  });
}


let num = await evaluate(() => async(function*() {

  yield* shift(function*(k) { setTimeout(k, 1000 )});
  return 5 + 5;
}));

console.dir({ num });