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import { Observable } from '../Observable';
import { ObservableInput, SchedulerLike} from '../types';
import { isScheduler } from '../util/isScheduler';
import { mergeAll } from '../operators/mergeAll';
import { fromArray } from './fromArray';
/* tslint:disable:max-line-length */
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T>(v1: ObservableInput<T>, scheduler: SchedulerLike): Observable<T>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T>(v1: ObservableInput<T>, concurrent: number, scheduler: SchedulerLike): Observable<T>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, T2>(v1: ObservableInput<T>, v2: ObservableInput<T2>, scheduler: SchedulerLike): Observable<T | T2>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, T2>(v1: ObservableInput<T>, v2: ObservableInput<T2>, concurrent: number, scheduler: SchedulerLike): Observable<T | T2>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, T2, T3>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, scheduler: SchedulerLike): Observable<T | T2 | T3>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, T2, T3>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, concurrent: number, scheduler: SchedulerLike): Observable<T | T2 | T3>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, T2, T3, T4>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, scheduler: SchedulerLike): Observable<T | T2 | T3 | T4>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, T2, T3, T4>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, concurrent: number, scheduler: SchedulerLike): Observable<T | T2 | T3 | T4>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, T2, T3, T4, T5>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>, scheduler: SchedulerLike): Observable<T | T2 | T3 | T4 | T5>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, T2, T3, T4, T5>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>, concurrent: number, scheduler: SchedulerLike): Observable<T | T2 | T3 | T4 | T5>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, T2, T3, T4, T5, T6>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>, v6: ObservableInput<T6>, scheduler: SchedulerLike): Observable<T | T2 | T3 | T4 | T5 | T6>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, T2, T3, T4, T5, T6>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>, v6: ObservableInput<T6>, concurrent: number, scheduler: SchedulerLike): Observable<T | T2 | T3 | T4 | T5 | T6>;
export function merge<T>(v1: ObservableInput<T>): Observable<T>;
export function merge<T>(v1: ObservableInput<T>, concurrent?: number): Observable<T>;
export function merge<T, T2>(v1: ObservableInput<T>, v2: ObservableInput<T2>): Observable<T | T2>;
export function merge<T, T2>(v1: ObservableInput<T>, v2: ObservableInput<T2>, concurrent?: number): Observable<T | T2>;
export function merge<T, T2, T3>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>): Observable<T | T2 | T3>;
export function merge<T, T2, T3>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, concurrent?: number): Observable<T | T2 | T3>;
export function merge<T, T2, T3, T4>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>): Observable<T | T2 | T3 | T4>;
export function merge<T, T2, T3, T4>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, concurrent?: number): Observable<T | T2 | T3 | T4>;
export function merge<T, T2, T3, T4, T5>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>): Observable<T | T2 | T3 | T4 | T5>;
export function merge<T, T2, T3, T4, T5>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>, concurrent?: number): Observable<T | T2 | T3 | T4 | T5>;
export function merge<T, T2, T3, T4, T5, T6>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>, v6: ObservableInput<T6>): Observable<T | T2 | T3 | T4 | T5 | T6>;
export function merge<T, T2, T3, T4, T5, T6>(v1: ObservableInput<T>, v2: ObservableInput<T2>, v3: ObservableInput<T3>, v4: ObservableInput<T4>, v5: ObservableInput<T5>, v6: ObservableInput<T6>, concurrent?: number): Observable<T | T2 | T3 | T4 | T5 | T6>;
export function merge<T>(...observables: (ObservableInput<T> | number)[]): Observable<T>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T>(...observables: (ObservableInput<T> | SchedulerLike | number)[]): Observable<T>;
export function merge<T, R>(...observables: (ObservableInput<any> | number)[]): Observable<R>;
/** @deprecated use {@link scheduled} and {@link mergeAll} (e.g. `scheduled([ob1, ob2, ob3], scheduled).pipe(mergeAll())*/
export function merge<T, R>(...observables: (ObservableInput<any> | SchedulerLike | number)[]): Observable<R>;
/* tslint:enable:max-line-length */
/**
* Creates an output Observable which concurrently emits all values from every
* given input Observable.
*
* <span class="informal">Flattens multiple Observables together by blending
* their values into one Observable.</span>
*
* 
*
* `merge` subscribes to each given input Observable (as arguments), and simply
* forwards (without doing any transformation) all the values from all the input
* Observables to the output Observable. The output Observable only completes
* once all input Observables have completed. Any error delivered by an input
* Observable will be immediately emitted on the output Observable.
*
* ## Examples
* ### Merge together two Observables: 1s interval and clicks
* ```ts
* import { merge, fromEvent, interval } from 'rxjs';
*
* const clicks = fromEvent(document, 'click');
* const timer = interval(1000);
* const clicksOrTimer = merge(clicks, timer);
* clicksOrTimer.subscribe(x => console.log(x));
*
* // Results in the following:
* // timer will emit ascending values, one every second(1000ms) to console
* // clicks logs MouseEvents to console everytime the "document" is clicked
* // Since the two streams are merged you see these happening
* // as they occur.
* ```
*
* ### Merge together 3 Observables, but only 2 run concurrently
* ```ts
* import { merge, interval } from 'rxjs';
* import { take } from 'rxjs/operators';
*
* const timer1 = interval(1000).pipe(take(10));
* const timer2 = interval(2000).pipe(take(6));
* const timer3 = interval(500).pipe(take(10));
* const concurrent = 2; // the argument
* const merged = merge(timer1, timer2, timer3, concurrent);
* merged.subscribe(x => console.log(x));
*
* // Results in the following:
* // - First timer1 and timer2 will run concurrently
* // - timer1 will emit a value every 1000ms for 10 iterations
* // - timer2 will emit a value every 2000ms for 6 iterations
* // - after timer1 hits its max iteration, timer2 will
* // continue, and timer3 will start to run concurrently with timer2
* // - when timer2 hits its max iteration it terminates, and
* // timer3 will continue to emit a value every 500ms until it is complete
* ```
*
* @see {@link mergeAll}
* @see {@link mergeMap}
* @see {@link mergeMapTo}
* @see {@link mergeScan}
*
* @param {...ObservableInput} observables Input Observables to merge together.
* @param {number} [concurrent=Number.POSITIVE_INFINITY] Maximum number of input
* Observables being subscribed to concurrently.
* @param {SchedulerLike} [scheduler=null] The {@link SchedulerLike} to use for managing
* concurrency of input Observables.
* @return {Observable} an Observable that emits items that are the result of
* every input Observable.
* @static true
* @name merge
* @owner Observable
*/
export function merge<T, R>(...observables: Array<ObservableInput<any> | SchedulerLike | number>): Observable<R> {
let concurrent = Number.POSITIVE_INFINITY;
let scheduler: SchedulerLike = null;
let last: any = observables[observables.length - 1];
if (isScheduler(last)) {
scheduler = <SchedulerLike>observables.pop();
if (observables.length > 1 && typeof observables[observables.length - 1] === 'number') {
concurrent = <number>observables.pop();
}
} else if (typeof last === 'number') {
concurrent = <number>observables.pop();
}
if (scheduler === null && observables.length === 1 && observables[0] instanceof Observable) {
return <Observable<R>>observables[0];
}
return mergeAll<R>(concurrent)(fromArray<any>(observables, scheduler));
}