smartstream/ts/smartstream.classes.passthrough.ts

import * as plugins from './smartstream.plugins.js';

export class PassThrough extends plugins.stream.Duplex {
  constructor(options?: plugins.stream.DuplexOptions) {
    super(options);
  }

  _read(size: number): void {
    // No-op: Data written will be automatically available for reading.
  }

  _write(chunk: any, encoding: BufferEncoding, callback: (error?: Error | null) => void): void {
    if (this.push(chunk, encoding)) {
      callback();
    } else {
      this.once('drain', () => {
        callback();
      });
    }
  }
}