@reactivex/ix-es5-esm
Version:
The Interactive Extensions for JavaScript
80 lines (78 loc) • 3.36 kB
JavaScript
import { __asyncDelegator, __asyncGenerator, __asyncValues, __await, __extends, __generator, __values } from "tslib";
import { AsyncIterableX } from '../asynciterablex.js';
import { wrapWithAbort } from './withabort.js';
import { throwIfAborted } from '../../aborterror.js';
/** @ignore */
var ReverseAsyncIterable = /** @class */ (function (_super) {
__extends(ReverseAsyncIterable, _super);
function ReverseAsyncIterable(source) {
var _this = _super.call(this) || this;
_this._source = source;
return _this;
}
ReverseAsyncIterable.prototype[Symbol.asyncIterator] = function (signal) {
return __asyncGenerator(this, arguments, function _a() {
var results, _b, _c, _d, item, e_1_1;
var _e, e_1, _f, _g;
return __generator(this, function (_h) {
switch (_h.label) {
case 0:
throwIfAborted(signal);
results = [];
_h.label = 1;
case 1:
_h.trys.push([1, 6, 7, 12]);
_b = true, _c = __asyncValues(wrapWithAbort(this._source, signal));
_h.label = 2;
case 2: return [4 /*yield*/, __await(_c.next())];
case 3:
if (!(_d = _h.sent(), _e = _d.done, !_e)) return [3 /*break*/, 5];
_g = _d.value;
_b = false;
item = _g;
results.unshift(item);
_h.label = 4;
case 4:
_b = true;
return [3 /*break*/, 2];
case 5: return [3 /*break*/, 12];
case 6:
e_1_1 = _h.sent();
e_1 = { error: e_1_1 };
return [3 /*break*/, 12];
case 7:
_h.trys.push([7, , 10, 11]);
if (!(!_b && !_e && (_f = _c.return))) return [3 /*break*/, 9];
return [4 /*yield*/, __await(_f.call(_c))];
case 8:
_h.sent();
_h.label = 9;
case 9: return [3 /*break*/, 11];
case 10:
if (e_1) throw e_1.error;
return [7 /*endfinally*/];
case 11: return [7 /*endfinally*/];
case 12: return [5 /*yield**/, __values(__asyncDelegator(__asyncValues(results)))];
case 13: return [4 /*yield*/, __await.apply(void 0, [_h.sent()])];
case 14:
_h.sent();
return [2 /*return*/];
}
});
});
};
return ReverseAsyncIterable;
}(AsyncIterableX));
export { ReverseAsyncIterable };
/**
* Reverses the async-iterable instance.
*
* @template TSource The type of the elements in the source sequence.
* @returns {MonoTypeOperatorAsyncFunction<TSource>} The async-iterable in reversed sequence.
*/
export function reverse() {
return function reverseOperatorFunction(source) {
return new ReverseAsyncIterable(source);
};
}
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