import { operate } from '../util/lift'; import { createOperatorSubscriber } from './OperatorSubscriber'; export function sequenceEqual(compareTo, comparator) { if (comparator === void 0) { comparator = function (a, b) { return a === b; }; } return operate(function (source, subscriber) { var aState = createState(); var bState = createState(); var emit = function (isEqual) { subscriber.next(isEqual); subscriber.complete(); }; var createSubscriber = function (selfState, otherState) { var sequenceEqualSubscriber = createOperatorSubscriber(subscriber, function (a) { var buffer = otherState.buffer, complete = otherState.complete; if (buffer.length === 0) { complete ? emit(false) : selfState.buffer.push(a); } else { !comparator(a, buffer.shift()) && emit(false); } }, function () { selfState.complete = true; var complete = otherState.complete, buffer = otherState.buffer; complete && emit(buffer.length === 0); sequenceEqualSubscriber === null || sequenceEqualSubscriber === void 0 ? void 0 : sequenceEqualSubscriber.unsubscribe(); }); return sequenceEqualSubscriber; }; source.subscribe(createSubscriber(aState, bState)); compareTo.subscribe(createSubscriber(bState, aState)); }); } function createState() { return { buffer: [], complete: false, }; } //# sourceMappingURL=sequenceEqual.js.map