v6

node_modules/jest-worker/build/Farm.d.ts

@@ -0,0 +1,27 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+import { FarmOptions } from './types';
+export default class Farm {
+    private _computeWorkerKey;
+    private _cacheKeys;
+    private _callback;
+    private _last;
+    private _locks;
+    private _numOfWorkers;
+    private _offset;
+    private _queue;
+    constructor(numOfWorkers: number, callback: Function, computeWorkerKey?: FarmOptions['computeWorkerKey']);
+    doWork(method: string, ...args: Array<any>): Promise<unknown>;
+    private _getNextTask;
+    private _process;
+    private _enqueue;
+    private _push;
+    private _lock;
+    private _unlock;
+    private _isLocked;
+}
+//# sourceMappingURL=Farm.d.ts.map

node_modules/jest-worker/build/Farm.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"Farm.d.ts","sourceRoot":"","sources":["../src/Farm.ts"],"names":[],"mappings":"AAAA;;;;;GAKG;AAEH,OAAO,EAEL,WAAW,EAOZ,MAAM,SAAS,CAAC;AAEjB,MAAM,CAAC,OAAO,OAAO,IAAI;IACvB,OAAO,CAAC,iBAAiB,CAAkC;IAC3D,OAAO,CAAC,UAAU,CAAkC;IACpD,OAAO,CAAC,SAAS,CAAW;IAC5B,OAAO,CAAC,KAAK,CAAmB;IAChC,OAAO,CAAC,MAAM,CAAiB;IAC/B,OAAO,CAAC,aAAa,CAAS;IAC9B,OAAO,CAAC,OAAO,CAAS;IACxB,OAAO,CAAC,MAAM,CAA0B;gBAGtC,YAAY,EAAE,MAAM,EACpB,QAAQ,EAAE,QAAQ,EAClB,gBAAgB,CAAC,EAAE,WAAW,CAAC,kBAAkB,CAAC;IAepD,MAAM,CAAC,MAAM,EAAE,MAAM,EAAE,GAAG,IAAI,EAAE,KAAK,CAAC,GAAG,CAAC,GAAG,OAAO,CAAC,OAAO,CAAC;IAqC7D,OAAO,CAAC,YAAY;IAYpB,OAAO,CAAC,QAAQ;IA0BhB,OAAO,CAAC,QAAQ;IAmBhB,OAAO,CAAC,KAAK;IAUb,OAAO,CAAC,KAAK;IAIb,OAAO,CAAC,OAAO;IAIf,OAAO,CAAC,SAAS;CAGlB"}

node_modules/jest-worker/build/Farm.js

@@ -0,0 +1,179 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = void 0;
+
+var _types = require('./types');
+
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+
+class Farm {
+  constructor(numOfWorkers, callback, computeWorkerKey) {
+    _defineProperty(this, '_computeWorkerKey', void 0);
+
+    _defineProperty(this, '_cacheKeys', void 0);
+
+    _defineProperty(this, '_callback', void 0);
+
+    _defineProperty(this, '_last', void 0);
+
+    _defineProperty(this, '_locks', void 0);
+
+    _defineProperty(this, '_numOfWorkers', void 0);
+
+    _defineProperty(this, '_offset', void 0);
+
+    _defineProperty(this, '_queue', void 0);
+
+    this._cacheKeys = Object.create(null);
+    this._callback = callback;
+    this._last = [];
+    this._locks = [];
+    this._numOfWorkers = numOfWorkers;
+    this._offset = 0;
+    this._queue = [];
+
+    if (computeWorkerKey) {
+      this._computeWorkerKey = computeWorkerKey;
+    }
+  }
+
+  doWork(method, ...args) {
+    return new Promise((resolve, reject) => {
+      const computeWorkerKey = this._computeWorkerKey;
+      const request = [_types.CHILD_MESSAGE_CALL, false, method, args];
+      let worker = null;
+      let hash = null;
+
+      if (computeWorkerKey) {
+        hash = computeWorkerKey.call(this, method, ...args);
+        worker = hash == null ? null : this._cacheKeys[hash];
+      }
+
+      const onStart = worker => {
+        if (hash != null) {
+          this._cacheKeys[hash] = worker;
+        }
+      };
+
+      const onEnd = (error, result) => {
+        if (error) {
+          reject(error);
+        } else {
+          resolve(result);
+        }
+      };
+
+      const task = {
+        onEnd,
+        onStart,
+        request
+      };
+
+      if (worker) {
+        this._enqueue(task, worker.getWorkerId());
+      } else {
+        this._push(task);
+      }
+    });
+  }
+
+  _getNextTask(workerId) {
+    let queueHead = this._queue[workerId];
+
+    while (queueHead && queueHead.task.request[1]) {
+      queueHead = queueHead.next || null;
+    }
+
+    this._queue[workerId] = queueHead;
+    return queueHead && queueHead.task;
+  }
+
+  _process(workerId) {
+    if (this._isLocked(workerId)) {
+      return this;
+    }
+
+    const task = this._getNextTask(workerId);
+
+    if (!task) {
+      return this;
+    }
+
+    const onEnd = (error, result) => {
+      task.onEnd(error, result);
+
+      this._unlock(workerId);
+
+      this._process(workerId);
+    };
+
+    task.request[1] = true;
+
+    this._lock(workerId);
+
+    this._callback(workerId, task.request, task.onStart, onEnd);
+
+    return this;
+  }
+
+  _enqueue(task, workerId) {
+    const item = {
+      next: null,
+      task
+    };
+
+    if (task.request[1]) {
+      return this;
+    }
+
+    if (this._queue[workerId]) {
+      this._last[workerId].next = item;
+    } else {
+      this._queue[workerId] = item;
+    }
+
+    this._last[workerId] = item;
+
+    this._process(workerId);
+
+    return this;
+  }
+
+  _push(task) {
+    for (let i = 0; i < this._numOfWorkers; i++) {
+      this._enqueue(task, (this._offset + i) % this._numOfWorkers);
+    }
+
+    this._offset++;
+    return this;
+  }
+
+  _lock(workerId) {
+    this._locks[workerId] = true;
+  }
+
+  _unlock(workerId) {
+    this._locks[workerId] = false;
+  }
+
+  _isLocked(workerId) {
+    return this._locks[workerId];
+  }
+}
+
+exports.default = Farm;

node_modules/jest-worker/build/WorkerPool.d.ts

@@ -0,0 +1,14 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+import BaseWorkerPool from './base/BaseWorkerPool';
+import { ChildMessage, WorkerOptions, OnStart, OnEnd, WorkerPoolInterface, WorkerInterface } from './types';
+declare class WorkerPool extends BaseWorkerPool implements WorkerPoolInterface {
+    send(workerId: number, request: ChildMessage, onStart: OnStart, onEnd: OnEnd): void;
+    createWorker(workerOptions: WorkerOptions): WorkerInterface;
+}
+export default WorkerPool;
+//# sourceMappingURL=WorkerPool.d.ts.map

node_modules/jest-worker/build/WorkerPool.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"WorkerPool.d.ts","sourceRoot":"","sources":["../src/WorkerPool.ts"],"names":[],"mappings":"AAAA;;;;;GAKG;AAEH,OAAO,cAAc,MAAM,uBAAuB,CAAC;AAEnD,OAAO,EACL,YAAY,EACZ,aAAa,EACb,OAAO,EACP,KAAK,EACL,mBAAmB,EACnB,eAAe,EAChB,MAAM,SAAS,CAAC;AAWjB,cAAM,UAAW,SAAQ,cAAe,YAAW,mBAAmB;IACpE,IAAI,CACF,QAAQ,EAAE,MAAM,EAChB,OAAO,EAAE,YAAY,EACrB,OAAO,EAAE,OAAO,EAChB,KAAK,EAAE,KAAK,GACX,IAAI;IAIP,YAAY,CAAC,aAAa,EAAE,aAAa,GAAG,eAAe;CAU5D;AAED,eAAe,UAAU,CAAC"}

node_modules/jest-worker/build/WorkerPool.js

@@ -0,0 +1,49 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = void 0;
+
+var _BaseWorkerPool = _interopRequireDefault(require('./base/BaseWorkerPool'));
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+const canUseWorkerThreads = () => {
+  try {
+    require('worker_threads');
+
+    return true;
+  } catch (_) {
+    return false;
+  }
+};
+
+class WorkerPool extends _BaseWorkerPool.default {
+  send(workerId, request, onStart, onEnd) {
+    this.getWorkerById(workerId).send(request, onStart, onEnd);
+  }
+
+  createWorker(workerOptions) {
+    let Worker;
+
+    if (this._options.enableWorkerThreads && canUseWorkerThreads()) {
+      Worker = require('./workers/NodeThreadsWorker').default;
+    } else {
+      Worker = require('./workers/ChildProcessWorker').default;
+    }
+
+    return new Worker(workerOptions);
+  }
+}
+
+var _default = WorkerPool;
+exports.default = _default;

node_modules/jest-worker/build/base/BaseWorkerPool.d.ts

@@ -0,0 +1,22 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+/// <reference types="node" />
+import { WorkerPoolOptions, WorkerOptions, WorkerInterface } from '../types';
+export default class BaseWorkerPool {
+    private readonly _stderr;
+    private readonly _stdout;
+    protected readonly _options: WorkerPoolOptions;
+    private readonly _workers;
+    constructor(workerPath: string, options: WorkerPoolOptions);
+    getStderr(): NodeJS.ReadableStream;
+    getStdout(): NodeJS.ReadableStream;
+    getWorkers(): Array<WorkerInterface>;
+    getWorkerById(workerId: number): WorkerInterface;
+    createWorker(_workerOptions: WorkerOptions): WorkerInterface;
+    end(): void;
+}
+//# sourceMappingURL=BaseWorkerPool.d.ts.map

node_modules/jest-worker/build/base/BaseWorkerPool.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"BaseWorkerPool.d.ts","sourceRoot":"","sources":["../../src/base/BaseWorkerPool.ts"],"names":[],"mappings":"AAAA;;;;;GAKG;;AAKH,OAAO,EAEL,iBAAiB,EACjB,aAAa,EACb,eAAe,EAChB,MAAM,UAAU,CAAC;AAKlB,MAAM,CAAC,OAAO,OAAO,cAAc;IACjC,OAAO,CAAC,QAAQ,CAAC,OAAO,CAAwB;IAChD,OAAO,CAAC,QAAQ,CAAC,OAAO,CAAwB;IAChD,SAAS,CAAC,QAAQ,CAAC,QAAQ,EAAE,iBAAiB,CAAC;IAC/C,OAAO,CAAC,QAAQ,CAAC,QAAQ,CAAyB;gBAEtC,UAAU,EAAE,MAAM,EAAE,OAAO,EAAE,iBAAiB;IAyC1D,SAAS,IAAI,MAAM,CAAC,cAAc;IAIlC,SAAS,IAAI,MAAM,CAAC,cAAc;IAIlC,UAAU,IAAI,KAAK,CAAC,eAAe,CAAC;IAIpC,aAAa,CAAC,QAAQ,EAAE,MAAM,GAAG,eAAe;IAIhD,YAAY,CAAC,cAAc,EAAE,aAAa,GAAG,eAAe;IAI5D,GAAG,IAAI,IAAI;CAWZ"}

node_modules/jest-worker/build/base/BaseWorkerPool.js

@@ -0,0 +1,134 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = void 0;
+
+function _path() {
+  const data = _interopRequireDefault(require('path'));
+
+  _path = function _path() {
+    return data;
+  };
+
+  return data;
+}
+
+function _mergeStream() {
+  const data = _interopRequireDefault(require('merge-stream'));
+
+  _mergeStream = function _mergeStream() {
+    return data;
+  };
+
+  return data;
+}
+
+var _types = require('../types');
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+
+/* istanbul ignore next */
+const emptyMethod = () => {};
+
+class BaseWorkerPool {
+  constructor(workerPath, options) {
+    _defineProperty(this, '_stderr', void 0);
+
+    _defineProperty(this, '_stdout', void 0);
+
+    _defineProperty(this, '_options', void 0);
+
+    _defineProperty(this, '_workers', void 0);
+
+    this._options = options;
+    this._workers = new Array(options.numWorkers);
+
+    if (!_path().default.isAbsolute(workerPath)) {
+      workerPath = require.resolve(workerPath);
+    }
+
+    const stdout = (0, _mergeStream().default)();
+    const stderr = (0, _mergeStream().default)();
+    const forkOptions = options.forkOptions,
+      maxRetries = options.maxRetries,
+      setupArgs = options.setupArgs;
+
+    for (let i = 0; i < options.numWorkers; i++) {
+      const workerOptions = {
+        forkOptions,
+        maxRetries,
+        setupArgs,
+        workerId: i,
+        workerPath
+      };
+      const worker = this.createWorker(workerOptions);
+      const workerStdout = worker.getStdout();
+      const workerStderr = worker.getStderr();
+
+      if (workerStdout) {
+        stdout.add(workerStdout);
+      }
+
+      if (workerStderr) {
+        stderr.add(workerStderr);
+      }
+
+      this._workers[i] = worker;
+    }
+
+    this._stdout = stdout;
+    this._stderr = stderr;
+  }
+
+  getStderr() {
+    return this._stderr;
+  }
+
+  getStdout() {
+    return this._stdout;
+  }
+
+  getWorkers() {
+    return this._workers;
+  }
+
+  getWorkerById(workerId) {
+    return this._workers[workerId];
+  }
+
+  createWorker(_workerOptions) {
+    throw Error('Missing method createWorker in WorkerPool');
+  }
+
+  end() {
+    // We do not cache the request object here. If so, it would only be only
+    // processed by one of the workers, and we want them all to close.
+    for (let i = 0; i < this._workers.length; i++) {
+      this._workers[i].send(
+        [_types.CHILD_MESSAGE_END, false],
+        emptyMethod,
+        emptyMethod
+      );
+    }
+  }
+}
+
+exports.default = BaseWorkerPool;

node_modules/jest-worker/build/index.d.ts

@@ -0,0 +1,46 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+/// <reference types="node" />
+import { FarmOptions } from './types';
+/**
+ * The Jest farm (publicly called "Worker") is a class that allows you to queue
+ * methods across multiple child processes, in order to parallelize work. This
+ * is done by providing an absolute path to a module that will be loaded on each
+ * of the child processes, and bridged to the main process.
+ *
+ * Bridged methods are specified by using the "exposedMethods" property of the
+ * "options" object. This is an array of strings, where each of them corresponds
+ * to the exported name in the loaded module.
+ *
+ * You can also control the amount of workers by using the "numWorkers" property
+ * of the "options" object, and the settings passed to fork the process through
+ * the "forkOptions" property. The amount of workers defaults to the amount of
+ * CPUS minus one.
+ *
+ * Queueing calls can be done in two ways:
+ *   - Standard method: calls will be redirected to the first available worker,
+ *     so they will get executed as soon as they can.
+ *
+ *   - Sticky method: if a "computeWorkerKey" method is provided within the
+ *     config, the resulting string of this method will be used as a key.
+ *     Every time this key is returned, it is guaranteed that your job will be
+ *     processed by the same worker. This is specially useful if your workers
+ *     are caching results.
+ */
+export default class JestWorker {
+    private _ending;
+    private _farm;
+    private _options;
+    private _workerPool;
+    constructor(workerPath: string, options?: FarmOptions);
+    private _bindExposedWorkerMethods;
+    private _callFunctionWithArgs;
+    getStderr(): NodeJS.ReadableStream;
+    getStdout(): NodeJS.ReadableStream;
+    end(): void;
+}
+//# sourceMappingURL=index.d.ts.map

node_modules/jest-worker/build/index.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.d.ts","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":"AAAA;;;;;GAKG;;AAKH,OAAO,EAAyC,WAAW,EAAC,MAAM,SAAS,CAAC;AAyB5E;;;;;;;;;;;;;;;;;;;;;;;;GAwBG;AACH,MAAM,CAAC,OAAO,OAAO,UAAU;IAC7B,OAAO,CAAC,OAAO,CAAU;IACzB,OAAO,CAAC,KAAK,CAAO;IACpB,OAAO,CAAC,QAAQ,CAAc;IAC9B,OAAO,CAAC,WAAW,CAAsB;gBAE7B,UAAU,EAAE,MAAM,EAAE,OAAO,CAAC,EAAE,WAAW;IA+BrD,OAAO,CAAC,yBAAyB;IAkBjC,OAAO,CAAC,qBAAqB;IAW7B,SAAS,IAAI,MAAM,CAAC,cAAc;IAIlC,SAAS,IAAI,MAAM,CAAC,cAAc;IAIlC,GAAG,IAAI,IAAI;CASZ"}

node_modules/jest-worker/build/index.js

@@ -0,0 +1,184 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = void 0;
+
+function _os() {
+  const data = _interopRequireDefault(require('os'));
+
+  _os = function _os() {
+    return data;
+  };
+
+  return data;
+}
+
+var _WorkerPool = _interopRequireDefault(require('./WorkerPool'));
+
+var _Farm = _interopRequireDefault(require('./Farm'));
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+function _objectSpread(target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i] != null ? arguments[i] : {};
+    var ownKeys = Object.keys(source);
+    if (typeof Object.getOwnPropertySymbols === 'function') {
+      ownKeys = ownKeys.concat(
+        Object.getOwnPropertySymbols(source).filter(function(sym) {
+          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
+        })
+      );
+    }
+    ownKeys.forEach(function(key) {
+      _defineProperty(target, key, source[key]);
+    });
+  }
+  return target;
+}
+
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+
+function getExposedMethods(workerPath, options) {
+  let exposedMethods = options.exposedMethods; // If no methods list is given, try getting it by auto-requiring the module.
+
+  if (!exposedMethods) {
+    const module = require(workerPath);
+
+    exposedMethods = Object.keys(module).filter(
+      // @ts-ignore: no index
+      name => typeof module[name] === 'function'
+    );
+
+    if (typeof module === 'function') {
+      exposedMethods = [...exposedMethods, 'default'];
+    }
+  }
+
+  return exposedMethods;
+}
+/**
+ * The Jest farm (publicly called "Worker") is a class that allows you to queue
+ * methods across multiple child processes, in order to parallelize work. This
+ * is done by providing an absolute path to a module that will be loaded on each
+ * of the child processes, and bridged to the main process.
+ *
+ * Bridged methods are specified by using the "exposedMethods" property of the
+ * "options" object. This is an array of strings, where each of them corresponds
+ * to the exported name in the loaded module.
+ *
+ * You can also control the amount of workers by using the "numWorkers" property
+ * of the "options" object, and the settings passed to fork the process through
+ * the "forkOptions" property. The amount of workers defaults to the amount of
+ * CPUS minus one.
+ *
+ * Queueing calls can be done in two ways:
+ *   - Standard method: calls will be redirected to the first available worker,
+ *     so they will get executed as soon as they can.
+ *
+ *   - Sticky method: if a "computeWorkerKey" method is provided within the
+ *     config, the resulting string of this method will be used as a key.
+ *     Every time this key is returned, it is guaranteed that your job will be
+ *     processed by the same worker. This is specially useful if your workers
+ *     are caching results.
+ */
+
+class JestWorker {
+  constructor(workerPath, options) {
+    _defineProperty(this, '_ending', void 0);
+
+    _defineProperty(this, '_farm', void 0);
+
+    _defineProperty(this, '_options', void 0);
+
+    _defineProperty(this, '_workerPool', void 0);
+
+    this._options = _objectSpread({}, options);
+    this._ending = false;
+    const workerPoolOptions = {
+      enableWorkerThreads: this._options.enableWorkerThreads || false,
+      forkOptions: this._options.forkOptions || {},
+      maxRetries: this._options.maxRetries || 3,
+      numWorkers:
+        this._options.numWorkers ||
+        Math.max(_os().default.cpus().length - 1, 1),
+      setupArgs: this._options.setupArgs || []
+    };
+
+    if (this._options.WorkerPool) {
+      // @ts-ignore: constructor target any?
+      this._workerPool = new this._options.WorkerPool(
+        workerPath,
+        workerPoolOptions
+      );
+    } else {
+      this._workerPool = new _WorkerPool.default(workerPath, workerPoolOptions);
+    }
+
+    this._farm = new _Farm.default(
+      workerPoolOptions.numWorkers,
+      this._workerPool.send.bind(this._workerPool),
+      this._options.computeWorkerKey
+    );
+
+    this._bindExposedWorkerMethods(workerPath, this._options);
+  }
+
+  _bindExposedWorkerMethods(workerPath, options) {
+    getExposedMethods(workerPath, options).forEach(name => {
+      if (name.startsWith('_')) {
+        return;
+      }
+
+      if (this.constructor.prototype.hasOwnProperty(name)) {
+        throw new TypeError('Cannot define a method called ' + name);
+      } // @ts-ignore: dynamic extension of the class instance is expected.
+
+      this[name] = this._callFunctionWithArgs.bind(this, name);
+    });
+  }
+
+  _callFunctionWithArgs(method, ...args) {
+    if (this._ending) {
+      throw new Error('Farm is ended, no more calls can be done to it');
+    }
+
+    return this._farm.doWork(method, ...args);
+  }
+
+  getStderr() {
+    return this._workerPool.getStderr();
+  }
+
+  getStdout() {
+    return this._workerPool.getStdout();
+  }
+
+  end() {
+    if (this._ending) {
+      throw new Error('Farm is ended, no more calls can be done to it');
+    }
+
+    this._workerPool.end();
+
+    this._ending = true;
+  }
+}
+
+exports.default = JestWorker;

node_modules/jest-worker/build/types.d.ts

@@ -0,0 +1,98 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+/// <reference types="node" />
+import { EventEmitter } from 'events';
+import { ForkOptions } from 'child_process';
+export declare const CHILD_MESSAGE_INITIALIZE: 0;
+export declare const CHILD_MESSAGE_CALL: 1;
+export declare const CHILD_MESSAGE_END: 2;
+export declare const PARENT_MESSAGE_OK: 0;
+export declare const PARENT_MESSAGE_CLIENT_ERROR: 1;
+export declare const PARENT_MESSAGE_SETUP_ERROR: 2;
+export declare type PARENT_MESSAGE_ERROR = typeof PARENT_MESSAGE_CLIENT_ERROR | typeof PARENT_MESSAGE_SETUP_ERROR;
+export { ForkOptions };
+export interface WorkerPoolInterface {
+    getStderr(): NodeJS.ReadableStream;
+    getStdout(): NodeJS.ReadableStream;
+    getWorkers(): Array<WorkerInterface>;
+    createWorker(options: WorkerOptions): WorkerInterface;
+    send(workerId: number, request: ChildMessage, onStart: OnStart, onEnd: OnEnd): void;
+    end(): void;
+}
+export interface WorkerInterface {
+    send(request: ChildMessage, onProcessStart: OnStart, onProcessEnd: OnEnd): void;
+    getWorkerId(): number;
+    getStderr(): NodeJS.ReadableStream | null;
+    getStdout(): NodeJS.ReadableStream | null;
+    onExit(exitCode: number): void;
+    onMessage(message: ParentMessage): void;
+}
+export declare type FarmOptions = {
+    computeWorkerKey?: (method: string, ...args: Array<unknown>) => string | null;
+    exposedMethods?: ReadonlyArray<string>;
+    forkOptions?: ForkOptions;
+    setupArgs?: Array<unknown>;
+    maxRetries?: number;
+    numWorkers?: number;
+    WorkerPool?: (workerPath: string, options?: WorkerPoolOptions) => WorkerPoolInterface;
+    enableWorkerThreads?: boolean;
+};
+export declare type WorkerPoolOptions = {
+    setupArgs: Array<unknown>;
+    forkOptions: ForkOptions;
+    maxRetries: number;
+    numWorkers: number;
+    enableWorkerThreads: boolean;
+};
+export declare type WorkerOptions = {
+    forkOptions: ForkOptions;
+    setupArgs: Array<unknown>;
+    maxRetries: number;
+    workerId: number;
+    workerPath: string;
+};
+export declare type MessagePort = typeof EventEmitter & {
+    postMessage(message: unknown): void;
+};
+export declare type MessageChannel = {
+    port1: MessagePort;
+    port2: MessagePort;
+};
+export declare type ChildMessageInitialize = [typeof CHILD_MESSAGE_INITIALIZE, // type
+boolean, // processed
+string, // file
+// file
+Array<unknown> | undefined, // setupArgs
+// setupArgs
+MessagePort | undefined];
+export declare type ChildMessageCall = [typeof CHILD_MESSAGE_CALL, // type
+boolean, // processed
+string, // method
+Array<unknown>];
+export declare type ChildMessageEnd = [typeof CHILD_MESSAGE_END, // type
+boolean];
+export declare type ChildMessage = ChildMessageInitialize | ChildMessageCall | ChildMessageEnd;
+export declare type ParentMessageOk = [typeof PARENT_MESSAGE_OK, // type
+unknown];
+export declare type ParentMessageError = [PARENT_MESSAGE_ERROR, // type
+string, // constructor
+string, // message
+string, // stack
+unknown];
+export declare type ParentMessage = ParentMessageOk | ParentMessageError;
+export declare type OnStart = (worker: WorkerInterface) => void;
+export declare type OnEnd = (err: Error | null, result: unknown) => void;
+export declare type QueueChildMessage = {
+    request: ChildMessage;
+    onStart: OnStart;
+    onEnd: OnEnd;
+};
+export declare type QueueItem = {
+    task: QueueChildMessage;
+    next: QueueItem | null;
+};
+//# sourceMappingURL=types.d.ts.map

node_modules/jest-worker/build/types.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"types.d.ts","sourceRoot":"","sources":["../src/types.ts"],"names":[],"mappings":"AAAA;;;;;GAKG;;AAEH,OAAO,EAAC,YAAY,EAAC,MAAM,QAAQ,CAAC;AACpC,OAAO,EAAC,WAAW,EAAC,MAAM,eAAe,CAAC;AAM1C,eAAO,MAAM,wBAAwB,EAAE,CAAK,CAAC;AAC7C,eAAO,MAAM,kBAAkB,EAAE,CAAK,CAAC;AACvC,eAAO,MAAM,iBAAiB,EAAE,CAAK,CAAC;AAEtC,eAAO,MAAM,iBAAiB,EAAE,CAAK,CAAC;AACtC,eAAO,MAAM,2BAA2B,EAAE,CAAK,CAAC;AAChD,eAAO,MAAM,0BAA0B,EAAE,CAAK,CAAC;AAE/C,oBAAY,oBAAoB,GAC5B,OAAO,2BAA2B,GAClC,OAAO,0BAA0B,CAAC;AAItC,OAAO,EAAC,WAAW,EAAC,CAAC;AAErB,MAAM,WAAW,mBAAmB;IAClC,SAAS,IAAI,MAAM,CAAC,cAAc,CAAC;IACnC,SAAS,IAAI,MAAM,CAAC,cAAc,CAAC;IACnC,UAAU,IAAI,KAAK,CAAC,eAAe,CAAC,CAAC;IACrC,YAAY,CAAC,OAAO,EAAE,aAAa,GAAG,eAAe,CAAC;IACtD,IAAI,CACF,QAAQ,EAAE,MAAM,EAChB,OAAO,EAAE,YAAY,EACrB,OAAO,EAAE,OAAO,EAChB,KAAK,EAAE,KAAK,GACX,IAAI,CAAC;IACR,GAAG,IAAI,IAAI,CAAC;CACb;AAED,MAAM,WAAW,eAAe;IAC9B,IAAI,CACF,OAAO,EAAE,YAAY,EACrB,cAAc,EAAE,OAAO,EACvB,YAAY,EAAE,KAAK,GAClB,IAAI,CAAC;IACR,WAAW,IAAI,MAAM,CAAC;IACtB,SAAS,IAAI,MAAM,CAAC,cAAc,GAAG,IAAI,CAAC;IAC1C,SAAS,IAAI,MAAM,CAAC,cAAc,GAAG,IAAI,CAAC;IAC1C,MAAM,CAAC,QAAQ,EAAE,MAAM,GAAG,IAAI,CAAC;IAC/B,SAAS,CAAC,OAAO,EAAE,aAAa,GAAG,IAAI,CAAC;CACzC;AAED,oBAAY,WAAW,GAAG;IACxB,gBAAgB,CAAC,EAAE,CAAC,MAAM,EAAE,MAAM,EAAE,GAAG,IAAI,EAAE,KAAK,CAAC,OAAO,CAAC,KAAK,MAAM,GAAG,IAAI,CAAC;IAC9E,cAAc,CAAC,EAAE,aAAa,CAAC,MAAM,CAAC,CAAC;IACvC,WAAW,CAAC,EAAE,WAAW,CAAC;IAC1B,SAAS,CAAC,EAAE,KAAK,CAAC,OAAO,CAAC,CAAC;IAC3B,UAAU,CAAC,EAAE,MAAM,CAAC;IACpB,UAAU,CAAC,EAAE,MAAM,CAAC;IACpB,UAAU,CAAC,EAAE,CACX,UAAU,EAAE,MAAM,EAClB,OAAO,CAAC,EAAE,iBAAiB,KACxB,mBAAmB,CAAC;IACzB,mBAAmB,CAAC,EAAE,OAAO,CAAC;CAC/B,CAAC;AAEF,oBAAY,iBAAiB,GAAG;IAC9B,SAAS,EAAE,KAAK,CAAC,OAAO,CAAC,CAAC;IAC1B,WAAW,EAAE,WAAW,CAAC;IACzB,UAAU,EAAE,MAAM,CAAC;IACnB,UAAU,EAAE,MAAM,CAAC;IACnB,mBAAmB,EAAE,OAAO,CAAC;CAC9B,CAAC;AAEF,oBAAY,aAAa,GAAG;IAC1B,WAAW,EAAE,WAAW,CAAC;IACzB,SAAS,EAAE,KAAK,CAAC,OAAO,CAAC,CAAC;IAC1B,UAAU,EAAE,MAAM,CAAC;IACnB,QAAQ,EAAE,MAAM,CAAC;IACjB,UAAU,EAAE,MAAM,CAAC;CACpB,CAAC;AAIF,oBAAY,WAAW,GAAG,OAAO,YAAY,GAAG;IAC9C,WAAW,CAAC,OAAO,EAAE,OAAO,GAAG,IAAI,CAAC;CACrC,CAAC;AAEF,oBAAY,cAAc,GAAG;IAC3B,KAAK,EAAE,WAAW,CAAC;IACnB,KAAK,EAAE,WAAW,CAAC;CACpB,CAAC;AAEF,oBAAY,sBAAsB,GAAG,CACnC,OAAO,wBAAwB,EAAE,OAAO;AACxC,OAAO,EAAE,YAAY;AACrB,MAAM,EAAE,OAAO;AACf,AADQ,OAAO;AACf,KAAK,CAAC,OAAO,CAAC,GAAG,SAAS,EAAE,YAAY;AACxC,AAD4B,YAAY;AACxC,WAAW,GAAG,SAAS,CACxB,CAAC;AAEF,oBAAY,gBAAgB,GAAG,CAC7B,OAAO,kBAAkB,EAAE,OAAO;AAClC,OAAO,EAAE,YAAY;AACrB,MAAM,EAAE,SAAS;AACjB,KAAK,CAAC,OAAO,CAAC,CACf,CAAC;AAEF,oBAAY,eAAe,GAAG,CAC5B,OAAO,iBAAiB,EAAE,OAAO;AACjC,OAAO,CACR,CAAC;AAEF,oBAAY,YAAY,GACpB,sBAAsB,GACtB,gBAAgB,GAChB,eAAe,CAAC;AAIpB,oBAAY,eAAe,GAAG,CAC5B,OAAO,iBAAiB,EAAE,OAAO;AACjC,OAAO,CACR,CAAC;AAEF,oBAAY,kBAAkB,GAAG,CAC/B,oBAAoB,EAAE,OAAO;AAC7B,MAAM,EAAE,cAAc;AACtB,MAAM,EAAE,UAAU;AAClB,MAAM,EAAE,QAAQ;AAChB,OAAO,CACR,CAAC;AAEF,oBAAY,aAAa,GAAG,eAAe,GAAG,kBAAkB,CAAC;AAIjE,oBAAY,OAAO,GAAG,CAAC,MAAM,EAAE,eAAe,KAAK,IAAI,CAAC;AACxD,oBAAY,KAAK,GAAG,CAAC,GAAG,EAAE,KAAK,GAAG,IAAI,EAAE,MAAM,EAAE,OAAO,KAAK,IAAI,CAAC;AAEjE,oBAAY,iBAAiB,GAAG;IAC9B,OAAO,EAAE,YAAY,CAAC;IACtB,OAAO,EAAE,OAAO,CAAC;IACjB,KAAK,EAAE,KAAK,CAAC;CACd,CAAC;AAEF,oBAAY,SAAS,GAAG;IACtB,IAAI,EAAE,iBAAiB,CAAC;IACxB,IAAI,EAAE,SAAS,GAAG,IAAI,CAAC;CACxB,CAAC"}

node_modules/jest-worker/build/types.js

@@ -0,0 +1,43 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+Object.defineProperty(exports, 'ForkOptions', {
+  enumerable: true,
+  get: function get() {
+    return _child_process().ForkOptions;
+  }
+});
+exports.PARENT_MESSAGE_SETUP_ERROR = exports.PARENT_MESSAGE_CLIENT_ERROR = exports.PARENT_MESSAGE_OK = exports.CHILD_MESSAGE_END = exports.CHILD_MESSAGE_CALL = exports.CHILD_MESSAGE_INITIALIZE = void 0;
+
+function _child_process() {
+  const data = require('child_process');
+
+  _child_process = function _child_process() {
+    return data;
+  };
+
+  return data;
+}
+
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+// Because of the dynamic nature of a worker communication process, all messages
+// coming from any of the other processes cannot be typed. Thus, many types
+const CHILD_MESSAGE_INITIALIZE = 0;
+exports.CHILD_MESSAGE_INITIALIZE = CHILD_MESSAGE_INITIALIZE;
+const CHILD_MESSAGE_CALL = 1;
+exports.CHILD_MESSAGE_CALL = CHILD_MESSAGE_CALL;
+const CHILD_MESSAGE_END = 2;
+exports.CHILD_MESSAGE_END = CHILD_MESSAGE_END;
+const PARENT_MESSAGE_OK = 0;
+exports.PARENT_MESSAGE_OK = PARENT_MESSAGE_OK;
+const PARENT_MESSAGE_CLIENT_ERROR = 1;
+exports.PARENT_MESSAGE_CLIENT_ERROR = PARENT_MESSAGE_CLIENT_ERROR;
+const PARENT_MESSAGE_SETUP_ERROR = 2;
+exports.PARENT_MESSAGE_SETUP_ERROR = PARENT_MESSAGE_SETUP_ERROR;

node_modules/jest-worker/build/workers/ChildProcessWorker.d.ts

@@ -0,0 +1,47 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+/// <reference types="node" />
+import { WorkerInterface, ChildMessage, OnEnd, OnStart, WorkerOptions, ParentMessage } from '../types';
+/**
+ * This class wraps the child process and provides a nice interface to
+ * communicate with. It takes care of:
+ *
+ *  - Re-spawning the process if it dies.
+ *  - Queues calls while the worker is busy.
+ *  - Re-sends the requests if the worker blew up.
+ *
+ * The reason for queueing them here (since childProcess.send also has an
+ * internal queue) is because the worker could be doing asynchronous work, and
+ * this would lead to the child process to read its receiving buffer and start a
+ * second call. By queueing calls here, we don't send the next call to the
+ * children until we receive the result of the previous one.
+ *
+ * As soon as a request starts to be processed by a worker, its "processed"
+ * field is changed to "true", so that other workers which might encounter the
+ * same call skip it.
+ */
+export default class ChildProcessWorker implements WorkerInterface {
+    private _child;
+    private _options;
+    private _onProcessEnd;
+    private _fakeStream;
+    private _request;
+    private _retries;
+    private _stderr;
+    private _stdout;
+    constructor(options: WorkerOptions);
+    initialize(): void;
+    private _shutdown;
+    onMessage(response: ParentMessage): void;
+    onExit(exitCode: number): void;
+    send(request: ChildMessage, onProcessStart: OnStart, onProcessEnd: OnEnd): void;
+    getWorkerId(): number;
+    getStdout(): NodeJS.ReadableStream | null;
+    getStderr(): NodeJS.ReadableStream | null;
+    private _getFakeStream;
+}
+//# sourceMappingURL=ChildProcessWorker.d.ts.map

node_modules/jest-worker/build/workers/ChildProcessWorker.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"ChildProcessWorker.d.ts","sourceRoot":"","sources":["../../src/workers/ChildProcessWorker.ts"],"names":[],"mappings":"AAAA;;;;;GAKG;;AAOH,OAAO,EAKL,eAAe,EACf,YAAY,EACZ,KAAK,EACL,OAAO,EACP,aAAa,EACb,aAAa,EACd,MAAM,UAAU,CAAC;AAElB;;;;;;;;;;;;;;;;;GAiBG;AACH,MAAM,CAAC,OAAO,OAAO,kBAAmB,YAAW,eAAe;IAChE,OAAO,CAAC,MAAM,CAAgB;IAC9B,OAAO,CAAC,QAAQ,CAAgB;IAChC,OAAO,CAAC,aAAa,CAAS;IAC9B,OAAO,CAAC,WAAW,CAAqB;IACxC,OAAO,CAAC,QAAQ,CAAsB;IACtC,OAAO,CAAC,QAAQ,CAAU;IAC1B,OAAO,CAAC,OAAO,CAAwC;IACvD,OAAO,CAAC,OAAO,CAAwC;gBAE3C,OAAO,EAAE,aAAa;IAUlC,UAAU;IAiEV,OAAO,CAAC,SAAS;IAQjB,SAAS,CAAC,QAAQ,EAAE,aAAa;IA6CjC,MAAM,CAAC,QAAQ,EAAE,MAAM;IAYvB,IAAI,CAAC,OAAO,EAAE,YAAY,EAAE,cAAc,EAAE,OAAO,EAAE,YAAY,EAAE,KAAK;IAcxE,WAAW;IAIX,SAAS,IAAI,MAAM,CAAC,cAAc,GAAG,IAAI;IAIzC,SAAS,IAAI,MAAM,CAAC,cAAc,GAAG,IAAI;IAIzC,OAAO,CAAC,cAAc;CAMvB"}

node_modules/jest-worker/build/workers/ChildProcessWorker.js

@@ -0,0 +1,310 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = void 0;
+
+function _child_process() {
+  const data = _interopRequireDefault(require('child_process'));
+
+  _child_process = function _child_process() {
+    return data;
+  };
+
+  return data;
+}
+
+function _stream() {
+  const data = require('stream');
+
+  _stream = function _stream() {
+    return data;
+  };
+
+  return data;
+}
+
+function _mergeStream() {
+  const data = _interopRequireDefault(require('merge-stream'));
+
+  _mergeStream = function _mergeStream() {
+    return data;
+  };
+
+  return data;
+}
+
+function _supportsColor() {
+  const data = _interopRequireDefault(require('supports-color'));
+
+  _supportsColor = function _supportsColor() {
+    return data;
+  };
+
+  return data;
+}
+
+var _types = require('../types');
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+function _objectSpread(target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i] != null ? arguments[i] : {};
+    var ownKeys = Object.keys(source);
+    if (typeof Object.getOwnPropertySymbols === 'function') {
+      ownKeys = ownKeys.concat(
+        Object.getOwnPropertySymbols(source).filter(function(sym) {
+          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
+        })
+      );
+    }
+    ownKeys.forEach(function(key) {
+      _defineProperty(target, key, source[key]);
+    });
+  }
+  return target;
+}
+
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+
+/**
+ * This class wraps the child process and provides a nice interface to
+ * communicate with. It takes care of:
+ *
+ *  - Re-spawning the process if it dies.
+ *  - Queues calls while the worker is busy.
+ *  - Re-sends the requests if the worker blew up.
+ *
+ * The reason for queueing them here (since childProcess.send also has an
+ * internal queue) is because the worker could be doing asynchronous work, and
+ * this would lead to the child process to read its receiving buffer and start a
+ * second call. By queueing calls here, we don't send the next call to the
+ * children until we receive the result of the previous one.
+ *
+ * As soon as a request starts to be processed by a worker, its "processed"
+ * field is changed to "true", so that other workers which might encounter the
+ * same call skip it.
+ */
+class ChildProcessWorker {
+  constructor(options) {
+    _defineProperty(this, '_child', void 0);
+
+    _defineProperty(this, '_options', void 0);
+
+    _defineProperty(this, '_onProcessEnd', void 0);
+
+    _defineProperty(this, '_fakeStream', void 0);
+
+    _defineProperty(this, '_request', void 0);
+
+    _defineProperty(this, '_retries', void 0);
+
+    _defineProperty(this, '_stderr', void 0);
+
+    _defineProperty(this, '_stdout', void 0);
+
+    this._options = options;
+    this._fakeStream = null;
+    this._request = null;
+    this._stderr = null;
+    this._stdout = null;
+    this.initialize();
+  }
+
+  initialize() {
+    const forceColor = _supportsColor().default.stdout
+      ? {
+          FORCE_COLOR: '1'
+        }
+      : {};
+
+    const child = _child_process().default.fork(
+      require.resolve('./processChild'),
+      [],
+      _objectSpread(
+        {
+          cwd: process.cwd(),
+          env: _objectSpread(
+            {},
+            process.env,
+            {
+              JEST_WORKER_ID: String(this._options.workerId + 1)
+            },
+            forceColor
+          ),
+          // Suppress --debug / --inspect flags while preserving others (like --harmony).
+          execArgv: process.execArgv.filter(v => !/^--(debug|inspect)/.test(v)),
+          silent: true
+        },
+        this._options.forkOptions
+      )
+    );
+
+    if (child.stdout) {
+      if (!this._stdout) {
+        // We need to add a permanent stream to the merged stream to prevent it
+        // from ending when the subprocess stream ends
+        this._stdout = (0, _mergeStream().default)(this._getFakeStream());
+      }
+
+      this._stdout.add(child.stdout);
+    }
+
+    if (child.stderr) {
+      if (!this._stderr) {
+        // We need to add a permanent stream to the merged stream to prevent it
+        // from ending when the subprocess stream ends
+        this._stderr = (0, _mergeStream().default)(this._getFakeStream());
+      }
+
+      this._stderr.add(child.stderr);
+    }
+
+    child.on('message', this.onMessage.bind(this));
+    child.on('exit', this.onExit.bind(this));
+    child.send([
+      _types.CHILD_MESSAGE_INITIALIZE,
+      false,
+      this._options.workerPath,
+      this._options.setupArgs
+    ]);
+    this._child = child;
+    this._retries++; // If we exceeded the amount of retries, we will emulate an error reply
+    // coming from the child. This avoids code duplication related with cleaning
+    // the queue, and scheduling the next call.
+
+    if (this._retries > this._options.maxRetries) {
+      const error = new Error('Call retries were exceeded');
+      this.onMessage([
+        _types.PARENT_MESSAGE_CLIENT_ERROR,
+        error.name,
+        error.message,
+        error.stack,
+        {
+          type: 'WorkerError'
+        }
+      ]);
+    }
+  }
+
+  _shutdown() {
+    // End the temporary streams so the merged streams end too
+    if (this._fakeStream) {
+      this._fakeStream.end();
+
+      this._fakeStream = null;
+    }
+  }
+
+  onMessage(response) {
+    let error;
+
+    switch (response[0]) {
+      case _types.PARENT_MESSAGE_OK:
+        this._onProcessEnd(null, response[1]);
+
+        break;
+
+      case _types.PARENT_MESSAGE_CLIENT_ERROR:
+        error = response[4];
+
+        if (error != null && typeof error === 'object') {
+          const extra = error; // @ts-ignore: no index
+
+          const NativeCtor = global[response[1]];
+          const Ctor = typeof NativeCtor === 'function' ? NativeCtor : Error;
+          error = new Ctor(response[2]);
+          error.type = response[1];
+          error.stack = response[3];
+
+          for (const key in extra) {
+            // @ts-ignore: adding custom properties to errors.
+            error[key] = extra[key];
+          }
+        }
+
+        this._onProcessEnd(error, null);
+
+        break;
+
+      case _types.PARENT_MESSAGE_SETUP_ERROR:
+        error = new Error('Error when calling setup: ' + response[2]); // @ts-ignore: adding custom properties to errors.
+
+        error.type = response[1];
+        error.stack = response[3];
+
+        this._onProcessEnd(error, null);
+
+        break;
+
+      default:
+        throw new TypeError('Unexpected response from worker: ' + response[0]);
+    }
+  }
+
+  onExit(exitCode) {
+    if (exitCode !== 0) {
+      this.initialize();
+
+      if (this._request) {
+        this._child.send(this._request);
+      }
+    } else {
+      this._shutdown();
+    }
+  }
+
+  send(request, onProcessStart, onProcessEnd) {
+    onProcessStart(this);
+
+    this._onProcessEnd = (...args) => {
+      // Clean the request to avoid sending past requests to workers that fail
+      // while waiting for a new request (timers, unhandled rejections...)
+      this._request = null;
+      return onProcessEnd(...args);
+    };
+
+    this._request = request;
+    this._retries = 0;
+
+    this._child.send(request);
+  }
+
+  getWorkerId() {
+    return this._options.workerId;
+  }
+
+  getStdout() {
+    return this._stdout;
+  }
+
+  getStderr() {
+    return this._stderr;
+  }
+
+  _getFakeStream() {
+    if (!this._fakeStream) {
+      this._fakeStream = new (_stream()).PassThrough();
+    }
+
+    return this._fakeStream;
+  }
+}
+
+exports.default = ChildProcessWorker;

node_modules/jest-worker/build/workers/NodeThreadsWorker.d.ts

@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+/// <reference types="node" />
+import { ChildMessage, OnEnd, OnStart, WorkerOptions, WorkerInterface, ParentMessage } from '../types';
+export default class ExperimentalWorker implements WorkerInterface {
+    private _worker;
+    private _options;
+    private _onProcessEnd;
+    private _request;
+    private _retries;
+    private _stderr;
+    private _stdout;
+    private _fakeStream;
+    constructor(options: WorkerOptions);
+    initialize(): void;
+    private _shutdown;
+    onMessage(response: ParentMessage): void;
+    onExit(exitCode: number): void;
+    send(request: ChildMessage, onProcessStart: OnStart, onProcessEnd: OnEnd): void;
+    getWorkerId(): number;
+    getStdout(): NodeJS.ReadableStream | null;
+    getStderr(): NodeJS.ReadableStream | null;
+    private _getFakeStream;
+}
+//# sourceMappingURL=NodeThreadsWorker.d.ts.map

node_modules/jest-worker/build/workers/NodeThreadsWorker.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"NodeThreadsWorker.d.ts","sourceRoot":"","sources":["../../src/workers/NodeThreadsWorker.ts"],"names":[],"mappings":"AAAA;;;;;GAKG;;AASH,OAAO,EAKL,YAAY,EACZ,KAAK,EACL,OAAO,EACP,aAAa,EACb,eAAe,EACf,aAAa,EACd,MAAM,UAAU,CAAC;AAElB,MAAM,CAAC,OAAO,OAAO,kBAAmB,YAAW,eAAe;IAChE,OAAO,CAAC,OAAO,CAAU;IACzB,OAAO,CAAC,QAAQ,CAAgB;IAChC,OAAO,CAAC,aAAa,CAAS;IAC9B,OAAO,CAAC,QAAQ,CAAsB;IACtC,OAAO,CAAC,QAAQ,CAAU;IAC1B,OAAO,CAAC,OAAO,CAAwC;IACvD,OAAO,CAAC,OAAO,CAAwC;IACvD,OAAO,CAAC,WAAW,CAAqB;gBAE5B,OAAO,EAAE,aAAa;IAUlC,UAAU;IAkEV,OAAO,CAAC,SAAS;IAQjB,SAAS,CAAC,QAAQ,EAAE,aAAa;IA2CjC,MAAM,CAAC,QAAQ,EAAE,MAAM;IAYvB,IAAI,CAAC,OAAO,EAAE,YAAY,EAAE,cAAc,EAAE,OAAO,EAAE,YAAY,EAAE,KAAK;IAexE,WAAW;IAIX,SAAS,IAAI,MAAM,CAAC,cAAc,GAAG,IAAI;IAIzC,SAAS,IAAI,MAAM,CAAC,cAAc,GAAG,IAAI;IAIzC,OAAO,CAAC,cAAc;CAMvB"}

node_modules/jest-worker/build/workers/NodeThreadsWorker.js

@@ -0,0 +1,289 @@
+'use strict';
+
+Object.defineProperty(exports, '__esModule', {
+  value: true
+});
+exports.default = void 0;
+
+function _path() {
+  const data = _interopRequireDefault(require('path'));
+
+  _path = function _path() {
+    return data;
+  };
+
+  return data;
+}
+
+function _stream() {
+  const data = require('stream');
+
+  _stream = function _stream() {
+    return data;
+  };
+
+  return data;
+}
+
+function _worker_threads() {
+  const data = require('worker_threads');
+
+  _worker_threads = function _worker_threads() {
+    return data;
+  };
+
+  return data;
+}
+
+function _mergeStream() {
+  const data = _interopRequireDefault(require('merge-stream'));
+
+  _mergeStream = function _mergeStream() {
+    return data;
+  };
+
+  return data;
+}
+
+var _types = require('../types');
+
+function _interopRequireDefault(obj) {
+  return obj && obj.__esModule ? obj : {default: obj};
+}
+
+function _objectSpread(target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i] != null ? arguments[i] : {};
+    var ownKeys = Object.keys(source);
+    if (typeof Object.getOwnPropertySymbols === 'function') {
+      ownKeys = ownKeys.concat(
+        Object.getOwnPropertySymbols(source).filter(function(sym) {
+          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
+        })
+      );
+    }
+    ownKeys.forEach(function(key) {
+      _defineProperty(target, key, source[key]);
+    });
+  }
+  return target;
+}
+
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+
+class ExperimentalWorker {
+  constructor(options) {
+    _defineProperty(this, '_worker', void 0);
+
+    _defineProperty(this, '_options', void 0);
+
+    _defineProperty(this, '_onProcessEnd', void 0);
+
+    _defineProperty(this, '_request', void 0);
+
+    _defineProperty(this, '_retries', void 0);
+
+    _defineProperty(this, '_stderr', void 0);
+
+    _defineProperty(this, '_stdout', void 0);
+
+    _defineProperty(this, '_fakeStream', void 0);
+
+    this._options = options;
+    this._request = null;
+    this._stderr = null;
+    this._stdout = null;
+    this._fakeStream = null;
+    this.initialize();
+  }
+
+  initialize() {
+    this._worker = new (_worker_threads()).Worker(
+      _path().default.resolve(__dirname, './threadChild.js'),
+      {
+        eval: false,
+        stderr: true,
+        stdout: true,
+        workerData: _objectSpread(
+          {
+            cwd: process.cwd(),
+            env: _objectSpread({}, process.env, {
+              JEST_WORKER_ID: String(this._options.workerId + 1) // 0-indexed workerId, 1-indexed JEST_WORKER_ID
+            }),
+            // Suppress --debug / --inspect flags while preserving others (like --harmony).
+            execArgv: process.execArgv.filter(
+              v => !/^--(debug|inspect)/.test(v)
+            ),
+            silent: true
+          },
+          this._options.forkOptions
+        )
+      }
+    );
+
+    if (this._worker.stdout) {
+      if (!this._stdout) {
+        // We need to add a permanent stream to the merged stream to prevent it
+        // from ending when the subprocess stream ends
+        this._stdout = (0, _mergeStream().default)(this._getFakeStream());
+      }
+
+      this._stdout.add(this._worker.stdout);
+    }
+
+    if (this._worker.stderr) {
+      if (!this._stderr) {
+        // We need to add a permanent stream to the merged stream to prevent it
+        // from ending when the subprocess stream ends
+        this._stderr = (0, _mergeStream().default)(this._getFakeStream());
+      }
+
+      this._stderr.add(this._worker.stderr);
+    }
+
+    this._worker.on('message', this.onMessage.bind(this));
+
+    this._worker.on('exit', this.onExit.bind(this));
+
+    this._worker.postMessage([
+      _types.CHILD_MESSAGE_INITIALIZE,
+      false,
+      this._options.workerPath,
+      this._options.setupArgs
+    ]);
+
+    this._retries++; // If we exceeded the amount of retries, we will emulate an error reply
+    // coming from the child. This avoids code duplication related with cleaning
+    // the queue, and scheduling the next call.
+
+    if (this._retries > this._options.maxRetries) {
+      const error = new Error('Call retries were exceeded');
+      this.onMessage([
+        _types.PARENT_MESSAGE_CLIENT_ERROR,
+        error.name,
+        error.message,
+        error.stack,
+        {
+          type: 'WorkerError'
+        }
+      ]);
+    }
+  }
+
+  _shutdown() {
+    // End the permanent stream so the merged stream end too
+    if (this._fakeStream) {
+      this._fakeStream.end();
+
+      this._fakeStream = null;
+    }
+  }
+
+  onMessage(response) {
+    let error;
+
+    switch (response[0]) {
+      case _types.PARENT_MESSAGE_OK:
+        this._onProcessEnd(null, response[1]);
+
+        break;
+
+      case _types.PARENT_MESSAGE_CLIENT_ERROR:
+        error = response[4];
+
+        if (error != null && typeof error === 'object') {
+          const extra = error; // @ts-ignore: no index
+
+          const NativeCtor = global[response[1]];
+          const Ctor = typeof NativeCtor === 'function' ? NativeCtor : Error;
+          error = new Ctor(response[2]);
+          error.type = response[1];
+          error.stack = response[3];
+
+          for (const key in extra) {
+            // @ts-ignore: no index
+            error[key] = extra[key];
+          }
+        }
+
+        this._onProcessEnd(error, null);
+
+        break;
+
+      case _types.PARENT_MESSAGE_SETUP_ERROR:
+        error = new Error('Error when calling setup: ' + response[2]); // @ts-ignore: adding custom properties to errors.
+
+        error.type = response[1];
+        error.stack = response[3];
+
+        this._onProcessEnd(error, null);
+
+        break;
+
+      default:
+        throw new TypeError('Unexpected response from worker: ' + response[0]);
+    }
+  }
+
+  onExit(exitCode) {
+    if (exitCode !== 0) {
+      this.initialize();
+
+      if (this._request) {
+        this._worker.postMessage(this._request);
+      }
+    } else {
+      this._shutdown();
+    }
+  }
+
+  send(request, onProcessStart, onProcessEnd) {
+    onProcessStart(this);
+
+    this._onProcessEnd = (...args) => {
+      // Clean the request to avoid sending past requests to workers that fail
+      // while waiting for a new request (timers, unhandled rejections...)
+      this._request = null;
+      return onProcessEnd(...args);
+    };
+
+    this._request = request;
+    this._retries = 0;
+
+    this._worker.postMessage(request);
+  }
+
+  getWorkerId() {
+    return this._options.workerId;
+  }
+
+  getStdout() {
+    return this._stdout;
+  }
+
+  getStderr() {
+    return this._stderr;
+  }
+
+  _getFakeStream() {
+    if (!this._fakeStream) {
+      this._fakeStream = new (_stream()).PassThrough();
+    }
+
+    return this._fakeStream;
+  }
+}
+
+exports.default = ExperimentalWorker;

node_modules/jest-worker/build/workers/processChild.d.ts

@@ -0,0 +1,8 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+export {};
+//# sourceMappingURL=processChild.d.ts.map

node_modules/jest-worker/build/workers/processChild.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"processChild.d.ts","sourceRoot":"","sources":["../../src/workers/processChild.ts"],"names":[],"mappings":"AAAA;;;;;GAKG"}

node_modules/jest-worker/build/workers/processChild.js

@@ -0,0 +1,166 @@
+'use strict';
+
+var _types = require('../types');
+
+function _objectSpread(target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i] != null ? arguments[i] : {};
+    var ownKeys = Object.keys(source);
+    if (typeof Object.getOwnPropertySymbols === 'function') {
+      ownKeys = ownKeys.concat(
+        Object.getOwnPropertySymbols(source).filter(function(sym) {
+          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
+        })
+      );
+    }
+    ownKeys.forEach(function(key) {
+      _defineProperty(target, key, source[key]);
+    });
+  }
+  return target;
+}
+
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+
+let file = null;
+let setupArgs = [];
+let initialized = false;
+/**
+ * This file is a small bootstrapper for workers. It sets up the communication
+ * between the worker and the parent process, interpreting parent messages and
+ * sending results back.
+ *
+ * The file loaded will be lazily initialized the first time any of the workers
+ * is called. This is done for optimal performance: if the farm is initialized,
+ * but no call is made to it, child Node processes will be consuming the least
+ * possible amount of memory.
+ *
+ * If an invalid message is detected, the child will exit (by throwing) with a
+ * non-zero exit code.
+ */
+
+process.on('message', request => {
+  switch (request[0]) {
+    case _types.CHILD_MESSAGE_INITIALIZE:
+      const init = request;
+      file = init[2];
+      setupArgs = request[3];
+      break;
+
+    case _types.CHILD_MESSAGE_CALL:
+      const call = request;
+      execMethod(call[2], call[3]);
+      break;
+
+    case _types.CHILD_MESSAGE_END:
+      end();
+      break;
+
+    default:
+      throw new TypeError(
+        'Unexpected request from parent process: ' + request[0]
+      );
+  }
+});
+
+function reportSuccess(result) {
+  if (!process || !process.send) {
+    throw new Error('Child can only be used on a forked process');
+  }
+
+  process.send([_types.PARENT_MESSAGE_OK, result]);
+}
+
+function reportClientError(error) {
+  return reportError(error, _types.PARENT_MESSAGE_CLIENT_ERROR);
+}
+
+function reportInitializeError(error) {
+  return reportError(error, _types.PARENT_MESSAGE_SETUP_ERROR);
+}
+
+function reportError(error, type) {
+  if (!process || !process.send) {
+    throw new Error('Child can only be used on a forked process');
+  }
+
+  if (error == null) {
+    error = new Error('"null" or "undefined" thrown');
+  }
+
+  process.send([
+    type,
+    error.constructor && error.constructor.name,
+    error.message,
+    error.stack,
+    typeof error === 'object' ? _objectSpread({}, error) : error
+  ]);
+}
+
+function end() {
+  const main = require(file);
+
+  if (!main.teardown) {
+    exitProcess();
+    return;
+  }
+
+  execFunction(main.teardown, main, [], exitProcess, exitProcess);
+}
+
+function exitProcess() {
+  process.exit(0);
+}
+
+function execMethod(method, args) {
+  const main = require(file);
+
+  let fn;
+
+  if (method === 'default') {
+    fn = main.__esModule ? main['default'] : main;
+  } else {
+    fn = main[method];
+  }
+
+  function execHelper() {
+    execFunction(fn, main, args, reportSuccess, reportClientError);
+  }
+
+  if (initialized || !main.setup) {
+    execHelper();
+    return;
+  }
+
+  initialized = true;
+  execFunction(main.setup, main, setupArgs, execHelper, reportInitializeError);
+}
+
+function execFunction(fn, ctx, args, onResult, onError) {
+  let result;
+
+  try {
+    result = fn.apply(ctx, args);
+  } catch (err) {
+    onError(err);
+    return;
+  }
+
+  if (result && typeof result.then === 'function') {
+    result.then(onResult, onError);
+  } else {
+    onResult(result);
+  }
+}

node_modules/jest-worker/build/workers/threadChild.d.ts

@@ -0,0 +1,8 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+export {};
+//# sourceMappingURL=threadChild.d.ts.map

node_modules/jest-worker/build/workers/threadChild.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"threadChild.d.ts","sourceRoot":"","sources":["../../src/workers/threadChild.ts"],"names":[],"mappings":"AAAA;;;;;GAKG"}

node_modules/jest-worker/build/workers/threadChild.js

@@ -0,0 +1,176 @@
+'use strict';
+
+function _worker_threads() {
+  const data = require('worker_threads');
+
+  _worker_threads = function _worker_threads() {
+    return data;
+  };
+
+  return data;
+}
+
+var _types = require('../types');
+
+function _objectSpread(target) {
+  for (var i = 1; i < arguments.length; i++) {
+    var source = arguments[i] != null ? arguments[i] : {};
+    var ownKeys = Object.keys(source);
+    if (typeof Object.getOwnPropertySymbols === 'function') {
+      ownKeys = ownKeys.concat(
+        Object.getOwnPropertySymbols(source).filter(function(sym) {
+          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
+        })
+      );
+    }
+    ownKeys.forEach(function(key) {
+      _defineProperty(target, key, source[key]);
+    });
+  }
+  return target;
+}
+
+function _defineProperty(obj, key, value) {
+  if (key in obj) {
+    Object.defineProperty(obj, key, {
+      value: value,
+      enumerable: true,
+      configurable: true,
+      writable: true
+    });
+  } else {
+    obj[key] = value;
+  }
+  return obj;
+}
+
+let file = null;
+let setupArgs = [];
+let initialized = false;
+/**
+ * This file is a small bootstrapper for workers. It sets up the communication
+ * between the worker and the parent process, interpreting parent messages and
+ * sending results back.
+ *
+ * The file loaded will be lazily initialized the first time any of the workers
+ * is called. This is done for optimal performance: if the farm is initialized,
+ * but no call is made to it, child Node processes will be consuming the least
+ * possible amount of memory.
+ *
+ * If an invalid message is detected, the child will exit (by throwing) with a
+ * non-zero exit code.
+ */
+
+_worker_threads().parentPort.on('message', request => {
+  switch (request[0]) {
+    case _types.CHILD_MESSAGE_INITIALIZE:
+      const init = request;
+      file = init[2];
+      setupArgs = request[3];
+      break;
+
+    case _types.CHILD_MESSAGE_CALL:
+      const call = request;
+      execMethod(call[2], call[3]);
+      break;
+
+    case _types.CHILD_MESSAGE_END:
+      end();
+      break;
+
+    default:
+      throw new TypeError(
+        'Unexpected request from parent process: ' + request[0]
+      );
+  }
+});
+
+function reportSuccess(result) {
+  if (_worker_threads().isMainThread) {
+    throw new Error('Child can only be used on a forked process');
+  }
+
+  _worker_threads().parentPort.postMessage([_types.PARENT_MESSAGE_OK, result]);
+}
+
+function reportClientError(error) {
+  return reportError(error, _types.PARENT_MESSAGE_CLIENT_ERROR);
+}
+
+function reportInitializeError(error) {
+  return reportError(error, _types.PARENT_MESSAGE_SETUP_ERROR);
+}
+
+function reportError(error, type) {
+  if (_worker_threads().isMainThread) {
+    throw new Error('Child can only be used on a forked process');
+  }
+
+  if (error == null) {
+    error = new Error('"null" or "undefined" thrown');
+  }
+
+  _worker_threads().parentPort.postMessage([
+    type,
+    error.constructor && error.constructor.name,
+    error.message,
+    error.stack,
+    typeof error === 'object' ? _objectSpread({}, error) : error
+  ]);
+}
+
+function end() {
+  const main = require(file);
+
+  if (!main.teardown) {
+    exitProcess();
+    return;
+  }
+
+  execFunction(main.teardown, main, [], exitProcess, exitProcess);
+}
+
+function exitProcess() {
+  process.exit(0);
+}
+
+function execMethod(method, args) {
+  const main = require(file);
+
+  let fn;
+
+  if (method === 'default') {
+    fn = main.__esModule ? main['default'] : main;
+  } else {
+    fn = main[method];
+  }
+
+  function execHelper() {
+    execFunction(fn, main, args, reportSuccess, reportClientError);
+  }
+
+  if (initialized || !main.setup) {
+    execHelper();
+    return;
+  }
+
+  initialized = true;
+  execFunction(main.setup, main, setupArgs, execHelper, reportInitializeError);
+}
+
+function execFunction(fn, ctx, args, onResult, onError) {
+  let result;
+
+  try {
+    result = fn.apply(ctx, args);
+  } catch (err) {
+    onError(err);
+    return;
+  }
+
+  if (result && typeof result.then === 'function') {
+    result.then(onResult, onError);
+  } else {
+    onResult(result);
+  }
+}