| 1 |
- {"ast":null,"code":"import { OuterSubscriber } from '../OuterSubscriber';\nimport { InnerSubscriber } from '../InnerSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nimport { map } from './map';\nimport { from } from '../observable/from';\nexport function exhaustMap(project, resultSelector) {\n if (resultSelector) {\n return source => source.pipe(exhaustMap((a, i) => from(project(a, i)).pipe(map((b, ii) => resultSelector(a, b, i, ii)))));\n }\n return source => source.lift(new ExhaustMapOperator(project));\n}\nclass ExhaustMapOperator {\n constructor(project) {\n this.project = project;\n }\n call(subscriber, source) {\n return source.subscribe(new ExhaustMapSubscriber(subscriber, this.project));\n }\n}\nclass ExhaustMapSubscriber extends OuterSubscriber {\n constructor(destination, project) {\n super(destination);\n this.project = project;\n this.hasSubscription = false;\n this.hasCompleted = false;\n this.index = 0;\n }\n _next(value) {\n if (!this.hasSubscription) {\n this.tryNext(value);\n }\n }\n tryNext(value) {\n let result;\n const index = this.index++;\n try {\n result = this.project(value, index);\n } catch (err) {\n this.destination.error(err);\n return;\n }\n this.hasSubscription = true;\n this._innerSub(result, value, index);\n }\n _innerSub(result, value, index) {\n const innerSubscriber = new InnerSubscriber(this, value, index);\n const destination = this.destination;\n destination.add(innerSubscriber);\n const innerSubscription = subscribeToResult(this, result, undefined, undefined, innerSubscriber);\n if (innerSubscription !== innerSubscriber) {\n destination.add(innerSubscription);\n }\n }\n _complete() {\n this.hasCompleted = true;\n if (!this.hasSubscription) {\n this.destination.complete();\n }\n this.unsubscribe();\n }\n notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n this.destination.next(innerValue);\n }\n notifyError(err) {\n this.destination.error(err);\n }\n notifyComplete(innerSub) {\n const destination = this.destination;\n destination.remove(innerSub);\n this.hasSubscription = false;\n if (this.hasCompleted) {\n this.destination.complete();\n }\n }\n}\n//# sourceMappingURL=exhaustMap.js.map","map":null,"metadata":{},"sourceType":"module","externalDependencies":[]}
|
