test262/harness/hidden-constructors.js

// Copyright (C) 2020 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
description: |
  Provides uniform access to built-in constructors that are not exposed to the global object.
defines:
  - AsyncFunction
  - AsyncGeneratorFunction
  - GeneratorFunction
---*/

var AsyncFunction;
var AsyncGeneratorFunction;
var GeneratorFunction;

try {
  AsyncFunction = Object.getPrototypeOf(new Function('return async function dummy() {}')()).constructor;
} catch(e) {}

try {
  AsyncGeneratorFunction = Object.getPrototypeOf(new Function('return async function* dummy() {}')()).constructor;
} catch(e) {}

try {
  GeneratorFunction = Object.getPrototypeOf(new Function('return function* dummy() {}')()).constructor;
} catch(e) {}