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- {"ast":null,"code":"import { OuterSubscriber } from '../OuterSubscriber';\nimport { subscribeToResult } from '../util/subscribeToResult';\nexport function distinct(keySelector, flushes) {\n return source => source.lift(new DistinctOperator(keySelector, flushes));\n}\nclass DistinctOperator {\n constructor(keySelector, flushes) {\n this.keySelector = keySelector;\n this.flushes = flushes;\n }\n call(subscriber, source) {\n return source.subscribe(new DistinctSubscriber(subscriber, this.keySelector, this.flushes));\n }\n}\nexport class DistinctSubscriber extends OuterSubscriber {\n constructor(destination, keySelector, flushes) {\n super(destination);\n this.keySelector = keySelector;\n this.values = new Set();\n if (flushes) {\n this.add(subscribeToResult(this, flushes));\n }\n }\n notifyNext(outerValue, innerValue, outerIndex, innerIndex, innerSub) {\n this.values.clear();\n }\n notifyError(error, innerSub) {\n this._error(error);\n }\n _next(value) {\n if (this.keySelector) {\n this._useKeySelector(value);\n } else {\n this._finalizeNext(value, value);\n }\n }\n _useKeySelector(value) {\n let key;\n const {\n destination\n } = this;\n try {\n key = this.keySelector(value);\n } catch (err) {\n destination.error(err);\n return;\n }\n this._finalizeNext(key, value);\n }\n _finalizeNext(key, value) {\n const {\n values\n } = this;\n if (!values.has(key)) {\n values.add(key);\n this.destination.next(value);\n }\n }\n}\n//# sourceMappingURL=distinct.js.map","map":null,"metadata":{},"sourceType":"module","externalDependencies":[]}
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