summaryrefslogtreecommitdiff
path: root/tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/debounceTime.ts
diff options
context:
space:
mode:
Diffstat (limited to 'tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/debounceTime.ts')
-rw-r--r--tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/debounceTime.ts130
1 files changed, 0 insertions, 130 deletions
diff --git a/tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/debounceTime.ts b/tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/debounceTime.ts
deleted file mode 100644
index 2a5505efbf..0000000000
--- a/tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/debounceTime.ts
+++ /dev/null
@@ -1,130 +0,0 @@
-import { Operator } from '../Operator';
-import { Observable } from '../Observable';
-import { Subscriber } from '../Subscriber';
-import { Subscription } from '../Subscription';
-import { async } from '../scheduler/async';
-import { MonoTypeOperatorFunction, SchedulerLike, TeardownLogic } from '../types';
-
-/**
- * Emits a value from the source Observable only after a particular time span
- * has passed without another source emission.
- *
- * <span class="informal">It's like {@link delay}, but passes only the most
- * recent value from each burst of emissions.</span>
- *
- * ![](debounceTime.png)
- *
- * `debounceTime` delays values emitted by the source Observable, but drops
- * previous pending delayed emissions if a new value arrives on the source
- * Observable. This operator keeps track of the most recent value from the
- * source Observable, and emits that only when `dueTime` enough time has passed
- * without any other value appearing on the source Observable. If a new value
- * appears before `dueTime` silence occurs, the previous value will be dropped
- * and will not be emitted on the output Observable.
- *
- * This is a rate-limiting operator, because it is impossible for more than one
- * value to be emitted in any time window of duration `dueTime`, but it is also
- * a delay-like operator since output emissions do not occur at the same time as
- * they did on the source Observable. Optionally takes a {@link SchedulerLike} for
- * managing timers.
- *
- * ## Example
- * Emit the most recent click after a burst of clicks
- * ```javascript
- * import { fromEvent } from 'rxjs';
- * import { debounceTime } from 'rxjs/operators';
- *
- * const clicks = fromEvent(document, 'click');
- * const result = clicks.pipe(debounceTime(1000));
- * result.subscribe(x => console.log(x));
- * ```
- *
- * @see {@link auditTime}
- * @see {@link debounce}
- * @see {@link delay}
- * @see {@link sampleTime}
- * @see {@link throttleTime}
- *
- * @param {number} dueTime The timeout duration in milliseconds (or the time
- * unit determined internally by the optional `scheduler`) for the window of
- * time required to wait for emission silence before emitting the most recent
- * source value.
- * @param {SchedulerLike} [scheduler=async] The {@link SchedulerLike} to use for
- * managing the timers that handle the timeout for each value.
- * @return {Observable} An Observable that delays the emissions of the source
- * Observable by the specified `dueTime`, and may drop some values if they occur
- * too frequently.
- * @method debounceTime
- * @owner Observable
- */
-export function debounceTime<T>(dueTime: number, scheduler: SchedulerLike = async): MonoTypeOperatorFunction<T> {
- return (source: Observable<T>) => source.lift(new DebounceTimeOperator(dueTime, scheduler));
-}
-
-class DebounceTimeOperator<T> implements Operator<T, T> {
- constructor(private dueTime: number, private scheduler: SchedulerLike) {
- }
-
- call(subscriber: Subscriber<T>, source: any): TeardownLogic {
- return source.subscribe(new DebounceTimeSubscriber(subscriber, this.dueTime, this.scheduler));
- }
-}
-
-/**
- * We need this JSDoc comment for affecting ESDoc.
- * @ignore
- * @extends {Ignored}
- */
-class DebounceTimeSubscriber<T> extends Subscriber<T> {
- private debouncedSubscription: Subscription = null;
- private lastValue: T = null;
- private hasValue: boolean = false;
-
- constructor(destination: Subscriber<T>,
- private dueTime: number,
- private scheduler: SchedulerLike) {
- super(destination);
- }
-
- protected _next(value: T) {
- this.clearDebounce();
- this.lastValue = value;
- this.hasValue = true;
- this.add(this.debouncedSubscription = this.scheduler.schedule(dispatchNext, this.dueTime, this));
- }
-
- protected _complete() {
- this.debouncedNext();
- this.destination.complete();
- }
-
- debouncedNext(): void {
- this.clearDebounce();
-
- if (this.hasValue) {
- const { lastValue } = this;
- // This must be done *before* passing the value
- // along to the destination because it's possible for
- // the value to synchronously re-enter this operator
- // recursively when scheduled with things like
- // VirtualScheduler/TestScheduler.
- this.lastValue = null;
- this.hasValue = false;
- this.destination.next(lastValue);
- }
- }
-
- private clearDebounce(): void {
- const debouncedSubscription = this.debouncedSubscription;
-
- if (debouncedSubscription !== null) {
- this.remove(debouncedSubscription);
- debouncedSubscription.unsubscribe();
- this.debouncedSubscription = null;
- }
- }
-}
-
-function dispatchNext(subscriber: DebounceTimeSubscriber<any>) {
- subscriber.debouncedNext();
-}