{"version":3,"names":["path","require","ACTIONS","GET_DEFAULT_EXTENSIONS","SET_OPTIONS","TRANSFORM","TRANSFORM_SYNC","_send","WeakMap","_eCache","Client","constructor","send","_classPrivateFieldInitSpec","writable","value","_classPrivateFieldSet","getDefaultExtensions","_classPrivateFieldGet2","_classPrivateFieldGet","call","undefined","setOptions","options","transform","code","filename","exports","WorkerClient","_worker","_signal","_class2","action","payload","subChannel","_classStaticPrivateFieldSpecGet","_worker_threads","MessageChannel","postMessage","signal","port","port1","Atomics","wait","message","receiveMessageOnPort","port2","error","Object","assign","errorData","result","Worker","resolve","__dirname","env","_markInRegisterWorker","process","Int32Array","SharedArrayBuffer","unref","get","_get_markInRegisterWorker","set","_get_worker_threads","markInRegisterWorker","_class3","_handleMessage","LocalClient","_classStaticPrivateFi","_classStaticPrivateFieldSpecSet","isLocalClient"],"sources":["../src/worker-client.js"],"sourcesContent":["const path = require(\"path\");\n\nconst ACTIONS = {\n  GET_DEFAULT_EXTENSIONS: \"GET_DEFAULT_EXTENSIONS\",\n  SET_OPTIONS: \"SET_OPTIONS\",\n  TRANSFORM: \"TRANSFORM\",\n  TRANSFORM_SYNC: \"TRANSFORM_SYNC\",\n};\n\nclass Client {\n  #send;\n\n  constructor(send) {\n    this.#send = send;\n  }\n\n  #eCache;\n  /** @return {string[]} */\n  getDefaultExtensions() {\n    return (this.#eCache ??= this.#send(\n      ACTIONS.GET_DEFAULT_EXTENSIONS,\n      undefined,\n    ));\n  }\n\n  /**\n   * @param {object} options\n   * @return {void}\n   */\n  setOptions(options) {\n    return this.#send(ACTIONS.SET_OPTIONS, options);\n  }\n\n  /**\n   * @param {string} code\n   * @param {string} filename\n   * @return {{ code: string, map: object } | null}\n   */\n  transform(code, filename) {\n    return this.#send(ACTIONS.TRANSFORM, { code, filename });\n  }\n}\n\n// We need to run Babel in a worker because require hooks must\n// run synchronously, but many steps of Babel's config loading\n// (which is done for each file) can be asynchronous\nexports.WorkerClient = class WorkerClient extends Client {\n  // These two require() calls are in deferred so that they are not imported in\n  // older Node.js versions (which don't support workers).\n  // TODO: Hoist them in Babel 8.\n\n  /** @type {typeof import(\"worker_threads\")} */\n  static get #worker_threads() {\n    return require(\"worker_threads\");\n  }\n\n  static get #markInRegisterWorker() {\n    return require(\"./is-in-register-worker.js\").markInRegisterWorker;\n  }\n\n  #worker = new WorkerClient.#worker_threads.Worker(\n    path.resolve(__dirname, \"./worker/index.js\"),\n    { env: WorkerClient.#markInRegisterWorker(process.env) },\n  );\n\n  #signal = new Int32Array(new SharedArrayBuffer(4));\n\n  constructor() {\n    super((action, payload) => {\n      this.#signal[0] = 0;\n      const subChannel = new WorkerClient.#worker_threads.MessageChannel();\n\n      this.#worker.postMessage(\n        { signal: this.#signal, port: subChannel.port1, action, payload },\n        [subChannel.port1],\n      );\n\n      Atomics.wait(this.#signal, 0, 0);\n      const { message } = WorkerClient.#worker_threads.receiveMessageOnPort(\n        subChannel.port2,\n      );\n\n      if (message.error) throw Object.assign(message.error, message.errorData);\n      else return message.result;\n    });\n\n    // The worker will never exit by itself. 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