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Diffstat (limited to 'tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/tap.ts')
-rw-r--r-- | tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/tap.ts | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/tap.ts b/tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/tap.ts deleted file mode 100644 index 661d055eea..0000000000 --- a/tools/node_modules/eslint/node_modules/rxjs/src/internal/operators/tap.ts +++ /dev/null @@ -1,147 +0,0 @@ -import { Operator } from '../Operator'; -import { Subscriber } from '../Subscriber'; -import { Observable } from '../Observable'; -import { MonoTypeOperatorFunction, PartialObserver, TeardownLogic } from '../types'; -import { noop } from '../util/noop'; -import { isFunction } from '../util/isFunction'; - -/* tslint:disable:max-line-length */ -/** @deprecated Use an observer instead of a complete callback */ -export function tap<T>(next: null | undefined, error: null | undefined, complete: () => void): MonoTypeOperatorFunction<T>; -/** @deprecated Use an observer instead of an error callback */ -export function tap<T>(next: null | undefined, error: (error: any) => void, complete?: () => void): MonoTypeOperatorFunction<T>; -/** @deprecated Use an observer instead of a complete callback */ -export function tap<T>(next: (value: T) => void, error: null | undefined, complete: () => void): MonoTypeOperatorFunction<T>; -export function tap<T>(next?: (x: T) => void, error?: (e: any) => void, complete?: () => void): MonoTypeOperatorFunction<T>; -export function tap<T>(observer: PartialObserver<T>): MonoTypeOperatorFunction<T>; -/* tslint:enable:max-line-length */ - -/** - * Perform a side effect for every emission on the source Observable, but return - * an Observable that is identical to the source. - * - * <span class="informal">Intercepts each emission on the source and runs a - * function, but returns an output which is identical to the source as long as errors don't occur.</span> - * - * ![](do.png) - * - * Returns a mirrored Observable of the source Observable, but modified so that - * the provided Observer is called to perform a side effect for every value, - * error, and completion emitted by the source. Any errors that are thrown in - * the aforementioned Observer or handlers are safely sent down the error path - * of the output Observable. - * - * This operator is useful for debugging your Observables for the correct values - * or performing other side effects. - * - * Note: this is different to a `subscribe` on the Observable. If the Observable - * returned by `tap` is not subscribed, the side effects specified by the - * Observer will never happen. `tap` therefore simply spies on existing - * execution, it does not trigger an execution to happen like `subscribe` does. - * - * ## Example - * Map every click to the clientX position of that click, while also logging the click event - * ```javascript - * import { fromEvent } from 'rxjs'; - * import { tap, map } from 'rxjs/operators'; - * - * const clicks = fromEvent(document, 'click'); - * const positions = clicks.pipe( - * tap(ev => console.log(ev)), - * map(ev => ev.clientX), - * ); - * positions.subscribe(x => console.log(x)); - * ``` - * - * @see {@link map} - * @see {@link Observable#subscribe} - * - * @param {Observer|function} [nextOrObserver] A normal Observer object or a - * callback for `next`. - * @param {function} [error] Callback for errors in the source. - * @param {function} [complete] Callback for the completion of the source. - * @return {Observable} An Observable identical to the source, but runs the - * specified Observer or callback(s) for each item. - * @name tap - */ -export function tap<T>(nextOrObserver?: PartialObserver<T> | ((x: T) => void), - error?: (e: any) => void, - complete?: () => void): MonoTypeOperatorFunction<T> { - return function tapOperatorFunction(source: Observable<T>): Observable<T> { - return source.lift(new DoOperator(nextOrObserver, error, complete)); - }; -} - -class DoOperator<T> implements Operator<T, T> { - constructor(private nextOrObserver?: PartialObserver<T> | ((x: T) => void), - private error?: (e: any) => void, - private complete?: () => void) { - } - call(subscriber: Subscriber<T>, source: any): TeardownLogic { - return source.subscribe(new TapSubscriber(subscriber, this.nextOrObserver, this.error, this.complete)); - } -} - -/** - * We need this JSDoc comment for affecting ESDoc. - * @ignore - * @extends {Ignored} - */ - -class TapSubscriber<T> extends Subscriber<T> { - private _context: any; - - private _tapNext: ((value: T) => void) = noop; - - private _tapError: ((err: any) => void) = noop; - - private _tapComplete: (() => void) = noop; - - constructor(destination: Subscriber<T>, - observerOrNext?: PartialObserver<T> | ((value: T) => void), - error?: (e?: any) => void, - complete?: () => void) { - super(destination); - this._tapError = error || noop; - this._tapComplete = complete || noop; - if (isFunction(observerOrNext)) { - this._context = this; - this._tapNext = observerOrNext; - } else if (observerOrNext) { - this._context = observerOrNext; - this._tapNext = observerOrNext.next || noop; - this._tapError = observerOrNext.error || noop; - this._tapComplete = observerOrNext.complete || noop; - } - } - - _next(value: T) { - try { - this._tapNext.call(this._context, value); - } catch (err) { - this.destination.error(err); - return; - } - this.destination.next(value); - } - - _error(err: any) { - try { - this._tapError.call(this._context, err); - } catch (err) { - this.destination.error(err); - return; - } - this.destination.error(err); - } - - _complete() { - try { - this._tapComplete.call(this._context, ); - } catch (err) { - this.destination.error(err); - return; - } - return this.destination.complete(); - } -} |