{"version":3,"sources":["asynciterable/operators/_grouping.ts"],"names":[],"mappings":"AAAA;;GAEG;AACH,MAAM,CAAC,KAAK,UAAU,cAAc,CAClC,MAA8B,EAC9B,WAAqD,EACrD,eAA6D;IAE7D,MAAM,GAAG,GAAG,IAAI,GAAG,EAAkB,CAAC;IACtC,IAAI,KAAK,EAAE,MAAM,IAAI,IAAI,MAAM,EAAE;QAC/B,MAAM,GAAG,GAAG,MAAM,WAAW,CAAC,IAAI,CAAC,CAAC;QACpC,IAAI,QAAQ,GAAG,GAAG,CAAC,GAAG,CAAC,GAAG,CAAC,CAAC;QAC5B,IAAI,CAAC,GAAG,CAAC,GAAG,CAAC,GAAG,CAAC,EAAE;YACjB,QAAQ,GAAG,EAAE,CAAC;YACd,GAAG,CAAC,GAAG,CAAC,GAAG,EAAE,QAAQ,CAAC,CAAC;SACxB;QACD,MAAM,OAAO,GAAG,MAAM,eAAe,CAAC,IAAI,CAAC,CAAC;QAC5C,QAAS,CAAC,IAAI,CAAC,OAAO,CAAC,CAAC;KACzB;IAED,OAAO,GAAG,CAAC;AACb,CAAC","file":"_grouping.js","sourcesContent":["/**\n * @ignore\n */\nexport async function createGrouping<TSource, TKey, TValue>(\n  source: AsyncIterable<TSource>,\n  keySelector: (value: TSource) => TKey | Promise<TKey>,\n  elementSelector: (value: TSource) => TValue | Promise<TValue>\n): Promise<Map<TKey, TValue[]>> {\n  const map = new Map<TKey, TValue[]>();\n  for await (const item of source) {\n    const key = await keySelector(item);\n    let grouping = map.get(key);\n    if (!map.has(key)) {\n      grouping = [];\n      map.set(key, grouping);\n    }\n    const element = await elementSelector(item);\n    grouping!.push(element);\n  }\n\n  return map;\n}\n"]}