prepack/lib/utils/errors.js

Execute a JS bundle, serialize global state and side effects to a snapshot that can be quickly restored.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ignoreErrorsIn = ignoreErrorsIn;

var _errors = require("../errors.js");

var _realm = require("../realm.js");

/**
 * Copyright (c) 2017-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

function ignoreErrorsIn(realm, f) {
  let savedHandler = realm.errorHandler;
  realm.errorHandler = d => "Recover";
  try {
    return f();
  } catch (err) {
    if (err instanceof _errors.FatalError) return undefined;
    throw err;
  } finally {
    realm.errorHandler = savedHandler;
  }
}
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