{"version":3,"sources":["asynciterable/operators/takelast.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,cAAc,EAAE,MAAM,mBAAmB,CAAC;AAGnD,MAAM,OAAO,qBAA+B,SAAQ,cAAuB;IAIzE,YAAY,MAA8B,EAAE,KAAa;QACvD,KAAK,EAAE,CAAC;QACR,IAAI,CAAC,OAAO,GAAG,MAAM,CAAC;QACtB,IAAI,CAAC,MAAM,GAAG,KAAK,CAAC;IACtB,CAAC;IAED,KAAK,CAAC,CAAC,CAAC,MAAM,CAAC,aAAa,CAAC;QAC3B,IAAI,IAAI,CAAC,MAAM,GAAG,CAAC,EAAE;YACnB,MAAM,CAAC,GAAG,EAAe,CAAC;YAC1B,IAAI,KAAK,EAAE,MAAM,IAAI,IAAI,IAAI,CAAC,OAAO,EAAE;gBACrC,IAAI,CAAC,CAAC,MAAM,IAAI,IAAI,CAAC,MAAM,EAAE;oBAC3B,CAAC,CAAC,KAAK,EAAE,CAAC;iBACX;gBACD,CAAC,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC;aACd;YAED,OAAO,CAAC,CAAC,MAAM,GAAG,CAAC,EAAE;gBACnB,MAAM,CAAC,CAAC,KAAK,EAAG,CAAC;aAClB;SACF;IACH,CAAC;CACF;AAED,MAAM,UAAU,QAAQ,CAAU,KAAa;IAC7C,OAAO,SAAS,wBAAwB,CACtC,MAA8B;QAE9B,OAAO,IAAI,qBAAqB,CAAU,MAAM,EAAE,KAAK,CAAC,CAAC;IAC3D,CAAC,CAAC;AACJ,CAAC","file":"takelast.js","sourcesContent":["import { AsyncIterableX } from '../asynciterablex';\nimport { MonoTypeOperatorAsyncFunction } from '../../interfaces';\n\nexport class TakeLastAsyncIterable<TSource> extends AsyncIterableX<TSource> {\n  private _source: AsyncIterable<TSource>;\n  private _count: number;\n\n  constructor(source: AsyncIterable<TSource>, count: number) {\n    super();\n    this._source = source;\n    this._count = count;\n  }\n\n  async *[Symbol.asyncIterator]() {\n    if (this._count > 0) {\n      const q = [] as TSource[];\n      for await (const item of this._source) {\n        if (q.length >= this._count) {\n          q.shift();\n        }\n        q.push(item);\n      }\n\n      while (q.length > 0) {\n        yield q.shift()!;\n      }\n    }\n  }\n}\n\nexport function takeLast<TSource>(count: number): MonoTypeOperatorAsyncFunction<TSource> {\n  return function takeLastOperatorFunction(\n    source: AsyncIterable<TSource>\n  ): AsyncIterableX<TSource> {\n    return new TakeLastAsyncIterable<TSource>(source, count);\n  };\n}\n"]}