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[dotfiles/.git] / .config / coc / extensions / node_modules / coc-prettier / node_modules / rxjs / src / internal / operators / distinct.ts

diff --git a/.config/coc/extensions/node_modules/coc-prettier/node_modules/rxjs/src/internal/operators/distinct.ts b/.config/coc/extensions/node_modules/coc-prettier/node_modules/rxjs/src/internal/operators/distinct.ts
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--- a/.config/coc/extensions/node_modules/coc-prettier/node_modules/rxjs/src/internal/operators/distinct.ts
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@@ -1,131 +0,0 @@
-import { Observable } from '../Observable';
-import { Operator } from '../Operator';
-import { Subscriber } from '../Subscriber';
-import { MonoTypeOperatorFunction, TeardownLogic } from '../types';
-import { SimpleOuterSubscriber, innerSubscribe, SimpleInnerSubscriber } from '../innerSubscribe';
-
-/**
- * Returns an Observable that emits all items emitted by the source Observable that are distinct by comparison from previous items.
- *
- * If a keySelector function is provided, then it will project each value from the source observable into a new value that it will
- * check for equality with previously projected values. If a keySelector function is not provided, it will use each value from the
- * source observable directly with an equality check against previous values.
- *
- * In JavaScript runtimes that support `Set`, this operator will use a `Set` to improve performance of the distinct value checking.
- *
- * In other runtimes, this operator will use a minimal implementation of `Set` that relies on an `Array` and `indexOf` under the
- * hood, so performance will degrade as more values are checked for distinction. Even in newer browsers, a long-running `distinct`
- * use might result in memory leaks. To help alleviate this in some scenarios, an optional `flushes` parameter is also provided so
- * that the internal `Set` can be "flushed", basically clearing it of values.
- *
- * ## Examples
- * A simple example with numbers
- * ```ts
- * import { of } from 'rxjs';
- * import { distinct } from 'rxjs/operators';
- *
- * of(1, 1, 2, 2, 2, 1, 2, 3, 4, 3, 2, 1).pipe(
- *     distinct(),
- *   )
- *   .subscribe(x => console.log(x)); // 1, 2, 3, 4
- * ```
- *
- * An example using a keySelector function
- * ```typescript
- * import { of } from 'rxjs';
- * import { distinct } from 'rxjs/operators';
- *
- * interface Person {
- *    age: number,
- *    name: string
- * }
- *
- * of<Person>(
- *     { age: 4, name: 'Foo'},
- *     { age: 7, name: 'Bar'},
- *     { age: 5, name: 'Foo'},
- *   ).pipe(
- *     distinct((p: Person) => p.name),
- *   )
- *   .subscribe(x => console.log(x));
- *
- * // displays:
- * // { age: 4, name: 'Foo' }
- * // { age: 7, name: 'Bar' }
- * ```
- * @see {@link distinctUntilChanged}
- * @see {@link distinctUntilKeyChanged}
- *
- * @param {function} [keySelector] Optional function to select which value you want to check as distinct.
- * @param {Observable} [flushes] Optional Observable for flushing the internal HashSet of the operator.
- * @return {Observable} An Observable that emits items from the source Observable with distinct values.
- * @method distinct
- * @owner Observable
- */
-export function distinct<T, K>(keySelector?: (value: T) => K,
-                               flushes?: Observable<any>): MonoTypeOperatorFunction<T> {
-  return (source: Observable<T>) => source.lift(new DistinctOperator(keySelector, flushes));
-}
-
-class DistinctOperator<T, K> implements Operator<T, T> {
-  constructor(private keySelector?: (value: T) => K, private flushes?: Observable<any>) {
-  }
-
-  call(subscriber: Subscriber<T>, source: any): TeardownLogic {
-    return source.subscribe(new DistinctSubscriber(subscriber, this.keySelector, this.flushes));
-  }
-}
-
-/**
- * We need this JSDoc comment for affecting ESDoc.
- * @ignore
- * @extends {Ignored}
- */
-export class DistinctSubscriber<T, K> extends SimpleOuterSubscriber<T, T> {
-  private values = new Set<K>();
-
-  constructor(destination: Subscriber<T>, private keySelector?: (value: T) => K, flushes?: Observable<any>) {
-    super(destination);
-
-    if (flushes) {
-      this.add(innerSubscribe(flushes, new SimpleInnerSubscriber(this)));
-    }
-  }
-
-  notifyNext(): void {
-    this.values.clear();
-  }
-
-  notifyError(error: any): void {
-    this._error(error);
-  }
-
-  protected _next(value: T): void {
-    if (this.keySelector) {
-      this._useKeySelector(value);
-    } else {
-      this._finalizeNext(value, value);
-    }
-  }
-
-  private _useKeySelector(value: T): void {
-    let key: K;
-    const { destination } = this;
-    try {
-      key = this.keySelector!(value);
-    } catch (err) {
-      destination.error!(err);
-      return;
-    }
-    this._finalizeNext(key, value);
-  }
-
-  private _finalizeNext(key: K|T, value: T) {
-    const { values } = this;
-    if (!values.has(<K>key)) {
-      values.add(<K>key);
-      this.destination.next!(value);
-    }
-  }
-
-}