@naturalcycles/nodejs-lib/dist/stream/transform/transformMapMulti.js

Standard library for Node.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const stream_1 = require("stream");
function transformMapMulti(mapper, opt = {}) {
    let index = 0;
    return new stream_1.Transform({
        objectMode: true,
        async transform(chunk, _encoding, cb) {
            try {
                await mapper(chunk, index++, out => {
                    // tslint:disable-next-line:no-invalid-this
                    this.push(out);
                });
                cb(); // signal that we've finished processing, but emit no output here
            }
            catch (err) {
                cb(err);
            }
        },
    });
}
exports.transformMapMulti = transformMapMulti;
//# sourceMappingURL=transformMapMulti.js.map