--- /dev/null
+import { Subscription } from '../Subscription';
+import { subscribeToResult } from '../util/subscribeToResult';
+import { OuterSubscriber } from '../OuterSubscriber';
+export function bufferToggle(openings, closingSelector) {
+ return function bufferToggleOperatorFunction(source) {
+ return source.lift(new BufferToggleOperator(openings, closingSelector));
+ };
+}
+class BufferToggleOperator {
+ constructor(openings, closingSelector) {
+ this.openings = openings;
+ this.closingSelector = closingSelector;
+ }
+ call(subscriber, source) {
+ return source.subscribe(new BufferToggleSubscriber(subscriber, this.openings, this.closingSelector));
+ }
+}
+class BufferToggleSubscriber extends OuterSubscriber {
+ constructor(destination, openings, closingSelector) {
+ super(destination);
+ this.openings = openings;
+ this.closingSelector = closingSelector;
+ this.contexts = [];
+ this.add(subscribeToResult(this, openings));
+ }
+ _next(value) {
+ const contexts = this.contexts;
+ const len = contexts.length;
+ for (let i = 0; i < len; i++) {
+ contexts[i].buffer.push(value);
+ }
+ }
+ _error(err) {
+ const contexts = this.contexts;
+ while (contexts.length > 0) {
+ const context = contexts.shift();
+ context.subscription.unsubscribe();
+ context.buffer = null;
+ context.subscription = null;
+ }
+ this.contexts = null;
+ super._error(err);
+ }
+ _complete() {
+ const contexts = this.contexts;
+ while (contexts.length > 0) {
+ const context = contexts.shift();
+ this.destination.next(context.buffer);
+ context.subscription.unsubscribe();
+ context.buffer = null;
+ context.subscription = null;
+ }
+ this.contexts = null;
+ super._complete();
+ }
+ notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {
+ outerValue ? this.closeBuffer(outerValue) : this.openBuffer(innerValue);
+ }
+ notifyComplete(innerSub) {
+ this.closeBuffer(innerSub.context);
+ }
+ openBuffer(value) {
+ try {
+ const closingSelector = this.closingSelector;
+ const closingNotifier = closingSelector.call(this, value);
+ if (closingNotifier) {
+ this.trySubscribe(closingNotifier);
+ }
+ }
+ catch (err) {
+ this._error(err);
+ }
+ }
+ closeBuffer(context) {
+ const contexts = this.contexts;
+ if (contexts && context) {
+ const { buffer, subscription } = context;
+ this.destination.next(buffer);
+ contexts.splice(contexts.indexOf(context), 1);
+ this.remove(subscription);
+ subscription.unsubscribe();
+ }
+ }
+ trySubscribe(closingNotifier) {
+ const contexts = this.contexts;
+ const buffer = [];
+ const subscription = new Subscription();
+ const context = { buffer, subscription };
+ contexts.push(context);
+ const innerSubscription = subscribeToResult(this, closingNotifier, context);
+ if (!innerSubscription || innerSubscription.closed) {
+ this.closeBuffer(context);
+ }
+ else {
+ innerSubscription.context = context;
+ this.add(innerSubscription);
+ subscription.add(innerSubscription);
+ }
+ }
+}
+//# sourceMappingURL=bufferToggle.js.map
\ No newline at end of file