| 53251 | } |
| 53252 | function AsyncIterator(generator, PromiseImpl) { |
| 53253 | function invoke(method, arg, resolve, reject) { |
| 53254 | var record = tryCatch(generator[method], generator, arg); |
| 53255 | if ("throw" !== record.type) { |
| 53256 | var result = record.arg, value1 = result.value; |
| 53257 | return value1 && "object" == _typeof(value1) && hasOwn.call(value1, "__await") ? PromiseImpl.resolve(value1.__await).then(function(value) { |
| 53258 | invoke("next", value, resolve, reject); |
| 53259 | }, function(err) { |
| 53260 | invoke("throw", err, resolve, reject); |
| 53261 | }) : PromiseImpl.resolve(value1).then(function(unwrapped) { |
| 53262 | result.value = unwrapped, resolve(result); |
| 53263 | }, function(error) { |
| 53264 | return invoke("throw", error, resolve, reject); |
| 53265 | }); |
| 53266 | } |
| 53267 | reject(record.arg); |
| 53268 | } |
| 53269 | var previousPromise; |
| 53270 | this._invoke = function(method, arg) { |
| 53271 | function callInvokeWithMethodAndArg() { |