parcel-bundler/lib/utils/syncPromise.js

Blazing fast, zero configuration web application bundler

"use strict";

const deasync = require('deasync');
/**
 * Synchronously waits for a promise to return by
 * yielding to the node event loop as needed.
 */


function syncPromise(promise) {
  let isDone = false;
  let res, err;
  promise.then(value => {
    res = value;
    isDone = true;
  }, error => {
    err = error;
    isDone = true;
  });
  deasync.loopWhile(() => !isDone);

  if (err) {
    throw err;
  }

  return res;
}

module.exports = syncPromise;