prepack/lib/utils/native-to-interp.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.default = convert;

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

var _index = require("../values/index.js");

var _singletons = require("../singletons.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 convert(realm, val) {
  if (typeof val === "number") {
    return new _index.NumberValue(realm, val);
  } else if (typeof val === "string") {
    return new _index.StringValue(realm, val);
  } else if (val === null) {
    return realm.intrinsics.null;
  } else if (val === undefined) {
    return realm.intrinsics.undefined;
  } else if (val === true) {
    return realm.intrinsics.true;
  } else if (val === false) {
    return realm.intrinsics.false;
  } else if (Array.isArray(val)) {
    return _singletons.Create.CreateArrayFromList(realm, val.map(item => convert(realm, item)));
  } else if (typeof val === "object") {
    let obj = new _index.ObjectValue(realm, realm.intrinsics.ObjectPrototype);

    for (let key in val) {
      obj.$DefineOwnProperty(key, {
        enumerable: true,
        writable: true,
        configurable: true,
        value: convert(realm, val[key])
      });
    }

    return obj;
  } else {
    throw new _errors.FatalError("need to convert value of type " + typeof val);
  }
}
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