ui/node_modules/rxjs/dist/esm5/internal/operators/bufferToggle.js

import { __values } from "tslib";
import { Subscription } from '../Subscription';
import { operate } from '../util/lift';
import { innerFrom } from '../observable/innerFrom';
import { createOperatorSubscriber } from './OperatorSubscriber';
import { noop } from '../util/noop';
import { arrRemove } from '../util/arrRemove';
export function bufferToggle(openings, closingSelector) {
    return operate(function (source, subscriber) {
        var buffers = [];
        innerFrom(openings).subscribe(createOperatorSubscriber(subscriber, function (openValue) {
            var buffer = [];
            buffers.push(buffer);
            var closingSubscription = new Subscription();
            var emitBuffer = function () {
                arrRemove(buffers, buffer);
                subscriber.next(buffer);
                closingSubscription.unsubscribe();
            };
            closingSubscription.add(innerFrom(closingSelector(openValue)).subscribe(createOperatorSubscriber(subscriber, emitBuffer, noop)));
        }, noop));
        source.subscribe(createOperatorSubscriber(subscriber, function (value) {
            var e_1, _a;
            try {
                for (var buffers_1 = __values(buffers), buffers_1_1 = buffers_1.next(); !buffers_1_1.done; buffers_1_1 = buffers_1.next()) {
                    var buffer = buffers_1_1.value;
                    buffer.push(value);
                }
            }
            catch (e_1_1) { e_1 = { error: e_1_1 }; }
            finally {
                try {
                    if (buffers_1_1 && !buffers_1_1.done && (_a = buffers_1.return)) _a.call(buffers_1);
                }
                finally { if (e_1) throw e_1.error; }
            }
        }, function () {
            while (buffers.length > 0) {
                subscriber.next(buffers.shift());
            }
            subscriber.complete();
        }));
    });
}
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