/**
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @noformat
 * @oncall react_native
 * @generated SignedSource<<50c246b8b64516c6719f514c067d12e3>>
 *
 * This file was translated from Flow by scripts/generateTypeScriptDefinitions.js
 * Original file: packages/metro/src/DeltaBundler/WorkerFarm.js
 * To regenerate, run:
 *   js1 build metro-ts-defs (internal) OR
 *   yarn run build-ts-defs (OSS) 
 */

import type {TransformResult} from '../DeltaBundler';
import type {TransformerConfig, TransformOptions, Worker} from './Worker';
import type {ConfigT} from 'metro-config';
import type {Readable} from 'node:stream';

type WorkerInterface = Readonly<
  Omit<Worker, 'end' | 'getStdout' | 'getStderr'> & {
    end(): void | Promise<void>;
    getStdout(): Readable;
    getStderr(): Readable;
  }
>;
type TransformerResult = Readonly<{result: TransformResult; sha1: string}>;
declare class WorkerFarm {
  _config: ConfigT;
  _transformerConfig: TransformerConfig;
  _worker: WorkerInterface | Worker;
  constructor(config: ConfigT, transformerConfig: TransformerConfig);
  kill(): Promise<void>;
  transform(filename: string, options: TransformOptions, fileBuffer?: Buffer): Promise<TransformerResult>;
  _makeFarm(absoluteWorkerPath: string, exposedMethods: ReadonlyArray<string>, numWorkers: number): WorkerInterface;
  _computeWorkerKey(method: string, filename: string): null | undefined | string;
  _formatGenericError(err: Readonly<{message: string; stack?: string | undefined}>, filename: string): TransformError;
  _formatBabelError(
    err: Readonly<{
      message: string;
      stack?: string | undefined;
      type?: string | undefined;
      codeFrame?: unknown | undefined;
      loc: {line?: number | undefined; column?: number | undefined};
    }>,
    filename: string,
  ): TransformError;
}
export default WorkerFarm;
declare class TransformError extends SyntaxError {
  type: string;
  constructor(message: string);
}