@tanstack/db-ivm/dist/cjs/operators/output.cjs.map

Incremental View Maintenance for TanStack DB based on Differential Dataflow

{"version":3,"file":"output.cjs","sources":["../../../src/operators/output.ts"],"sourcesContent":["import { DifferenceStreamWriter, UnaryOperator } from \"../graph.js\"\nimport { StreamBuilder } from \"../d2.js\"\nimport type { IStreamBuilder, PipedOperator } from \"../types.js\"\nimport type { DifferenceStreamReader } from \"../graph.js\"\nimport type { MultiSet } from \"../multiset.js\"\n\n/**\n * Operator that outputs the messages in the stream\n */\nexport class OutputOperator<T> extends UnaryOperator<T> {\n  #fn: (data: MultiSet<T>) => void\n\n  constructor(\n    id: number,\n    inputA: DifferenceStreamReader<T>,\n    outputWriter: DifferenceStreamWriter<T>,\n    fn: (data: MultiSet<T>) => void\n  ) {\n    super(id, inputA, outputWriter)\n    this.#fn = fn\n  }\n\n  run(): void {\n    for (const message of this.inputMessages()) {\n      this.#fn(message)\n      this.output.sendData(message)\n    }\n  }\n}\n\n/**\n * Outputs the messages in the stream\n * @param fn - The function to call with each message\n */\nexport function output<T>(\n  fn: (data: MultiSet<T>) => void\n): PipedOperator<T, T> {\n  return (stream: IStreamBuilder<T>): IStreamBuilder<T> => {\n    const outputStream = new StreamBuilder<T>(\n      stream.graph,\n      new DifferenceStreamWriter<T>()\n    )\n    const operator = new OutputOperator<T>(\n      stream.graph.getNextOperatorId(),\n      stream.connectReader(),\n      outputStream.writer,\n      fn\n    )\n    stream.graph.addOperator(operator)\n    stream.graph.addStream(outputStream.connectReader())\n    return outputStream\n  }\n}\n"],"names":["UnaryOperator","StreamBuilder","DifferenceStreamWriter"],"mappings":";;;;;;;;;;;;AASO,MAAM,uBAA0BA,MAAAA,cAAiB;AAAA,EAGtD,YACE,IACA,QACA,cACA,IACA;AACA,UAAM,IAAI,QAAQ,YAAY;AARhC;AASE,uBAAK,KAAM;AAAA,EACb;AAAA,EAEA,MAAY;AACV,eAAW,WAAW,KAAK,iBAAiB;AAC1C,yBAAK,KAAL,WAAS;AACT,WAAK,OAAO,SAAS,OAAO;AAAA,IAC9B;AAAA,EACF;AACF;AAlBE;AAwBK,SAAS,OACd,IACqB;AACrB,SAAO,CAAC,WAAiD;AACvD,UAAM,eAAe,IAAIC,GAAAA;AAAAA,MACvB,OAAO;AAAA,MACP,IAAIC,MAAAA,uBAAA;AAAA,IAA0B;AAEhC,UAAM,WAAW,IAAI;AAAA,MACnB,OAAO,MAAM,kBAAA;AAAA,MACb,OAAO,cAAA;AAAA,MACP,aAAa;AAAA,MACb;AAAA,IAAA;AAEF,WAAO,MAAM,YAAY,QAAQ;AACjC,WAAO,MAAM,UAAU,aAAa,cAAA,CAAe;AACnD,WAAO;AAAA,EACT;AACF;;;"}