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Viewing / Editing File: asyncIterator.js

function _asyncIterator(iterable) {
  var method,
      async,
      sync,
      retry = 2;

for ("undefined" != typeof Symbol && (async = Symbol.asyncIterator, sync = Symbol.iterator); retry--;) {
    if (async && null != (method = iterable[async])) return method.call(iterable);
    if (sync && null != (method = iterable[sync])) return new AsyncFromSyncIterator(method.call(iterable));
    async = "@@asyncIterator", sync = "@@iterator";
  }

throw new TypeError("Object is not async iterable");
}

return AsyncFromSyncIterator = function AsyncFromSyncIterator(s) {
    this.s = s, this.n = s.next;
  }, AsyncFromSyncIterator.prototype = {
    s: null,
    n: null,
    next: function next() {
      return AsyncFromSyncIteratorContinuation(this.n.apply(this.s, arguments));
    },
    "return": function _return(value) {
      var ret = this.s["return"];
      return void 0 === ret ? Promise.resolve({
        value: value,
        done: !0
      }) : AsyncFromSyncIteratorContinuation(ret.apply(this.s, arguments));
    },
    "throw": function _throw(value) {
      var thr = this.s["return"];
      return void 0 === thr ? Promise.reject(value) : AsyncFromSyncIteratorContinuation(thr.apply(this.s, arguments));
    }
  }, new AsyncFromSyncIterator(s);
}

module.exports = _asyncIterator, module.exports.__esModule = true, module.exports["default"] = module.exports;

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