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{"version":3,"file":"isEmpty.js","sourceRoot":"","sources":["../../src/operators/isEmpty.ts"],"names":[],"mappings":";;;;;;AACA,2BAA2B,eAAe,CAAC,CAAA;AAI3C;IACE,MAAM,CAAC,UAAC,MAAqB,IAAK,OAAA,MAAM,CAAC,IAAI,CAAC,IAAI,eAAe,EAAE,CAAC,EAAlC,CAAkC,CAAC;AACvE,CAAC;AAFe,eAAO,UAEtB,CAAA;AAED;IAAA;IAIA,CAAC;IAHC,8BAAI,GAAJ,UAAM,QAA6B,EAAE,MAAW;QAC9C,MAAM,CAAC,MAAM,CAAC,SAAS,CAAC,IAAI,iBAAiB,CAAC,QAAQ,CAAC,CAAC,CAAC;IAC3D,CAAC;IACH,sBAAC;AAAD,CAAC,AAJD,IAIC;AAED;;;;GAIG;AACH;IAAgC,qCAAe;IAC7C,2BAAY,WAAgC;QAC1C,kBAAM,WAAW,CAAC,CAAC;IACrB,CAAC;IAEO,0CAAc,GAAtB,UAAuB,OAAgB;QACrC,IAAM,WAAW,GAAG,IAAI,CAAC,WAAW,CAAC;QAErC,WAAW,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC;QAC1B,WAAW,CAAC,QAAQ,EAAE,CAAC;IACzB,CAAC;IAES,iCAAK,GAAf,UAAgB,KAAc;QAC5B,IAAI,CAAC,cAAc,CAAC,KAAK,CAAC,CAAC;IAC7B,CAAC;IAES,qCAAS,GAAnB;QACE,IAAI,CAAC,cAAc,CAAC,IAAI,CAAC,CAAC;IAC5B,CAAC;IACH,wBAAC;AAAD,CAAC,AAnBD,CAAgC,uBAAU,GAmBzC","sourcesContent":["import { Operator } from '../Operator';\nimport { Subscriber } from '../Subscriber';\nimport { Observable } from '../Observable';\nimport { OperatorFunction } from '../interfaces';\n\nexport function isEmpty<T>(): OperatorFunction<T, boolean> {\n return (source: Observable<T>) => source.lift(new IsEmptyOperator());\n}\n\nclass IsEmptyOperator implements Operator<any, boolean> {\n call (observer: Subscriber<boolean>, source: any): any {\n return source.subscribe(new IsEmptySubscriber(observer));\n }\n}\n\n/**\n * We need this JSDoc comment for affecting ESDoc.\n * @ignore\n * @extends {Ignored}\n */\nclass IsEmptySubscriber extends Subscriber<any> {\n constructor(destination: Subscriber<boolean>) {\n super(destination);\n }\n\n private notifyComplete(isEmpty: boolean): void {\n const destination = this.destination;\n\n destination.next(isEmpty);\n destination.complete();\n }\n\n protected _next(value: boolean) {\n this.notifyComplete(false);\n }\n\n protected _complete() {\n this.notifyComplete(true);\n }\n}\n"]}