prepack/lib/intrinsics/ecma262/BooleanPrototype.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 = _default;

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.
 */

/*  strict-local */
function _default(realm, obj) {
  // ECMA262 19.3.1
  obj.$BooleanData = realm.intrinsics.false;
  const tsTemplateSrc = "('' + A)"; // ECMA262 19.3.3.3

  obj.defineNativeMethod("toString", 0, context => {
    const target = context instanceof _index.ObjectValue ? context.$BooleanData : context;

    if (target instanceof _index.AbstractValue && target.getType() === _index.BooleanValue) {
      return _index.AbstractValue.createFromTemplate(realm, tsTemplateSrc, _index.StringValue, [target]);
    } // 1. Let b be ? thisBooleanValue(this value).


    let b = _singletons.To.thisBooleanValue(realm, context); // 2. If b is true, return "true"; else return "false".


    return new _index.StringValue(realm, b.value ? "true" : "false");
  }); // ECMA262 19.3.3.4

  obj.defineNativeMethod("valueOf", 0, context => {
    // 1. Return ? thisBooleanValue(this value).
    return _singletons.To.thisBooleanValue(realm, context);
  });
}
//# sourceMappingURL=BooleanPrototype.js.map