FM / cancel

/usr/local/lib/node_modules/pm2/node_modules/extrareqp2/lib/cancel/

/usr/local/lib/node_modules/pm2/node_modules/extrareqp2/lib/cancel

Name	Size	Mode	Actions
Cancel.js	385	0644	edit dl rm
CancelToken.js	1240	0644	edit dl rm
isCancel.js	102	0644	edit dl rm

Edit: /usr/local/lib/node_modules/pm2/node_modules/extrareqp2/lib/cancel/CancelToken.js (1240B)

'use strict';

var Cancel = require('./Cancel');

/**
 * A `CancelToken` is an object that can be used to request cancellation of an operation.
 *
 * @class
 * @param {Function} executor The executor function.
 */
function CancelToken(executor) {
  if (typeof executor !== 'function') {
    throw new TypeError('executor must be a function.');
  }

var resolvePromise;
  this.promise = new Promise(function promiseExecutor(resolve) {
    resolvePromise = resolve;
  });

var token = this;
  executor(function cancel(message) {
    if (token.reason) {
      // Cancellation has already been requested
      return;
    }

token.reason = new Cancel(message);
    resolvePromise(token.reason);
  });
}

/**
 * Throws a `Cancel` if cancellation has been requested.
 */
CancelToken.prototype.throwIfRequested = function throwIfRequested() {
  if (this.reason) {
    throw this.reason;
  }
};

/**
 * Returns an object that contains a new `CancelToken` and a function that, when called,
 * cancels the `CancelToken`.
 */
CancelToken.source = function source() {
  var cancel;
  var token = new CancelToken(function executor(c) {
    cancel = c;
  });
  return {
    token: token,
    cancel: cancel
  };
};

module.exports = CancelToken;

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