denoland-deno/cli/tests/node_compat/test/parallel/test-eval-strict-referenceerror.js

// deno-fmt-ignore-file
// deno-lint-ignore-file

// Copyright Joyent and Node contributors. All rights reserved. MIT license.
// Taken from Node 18.12.1
// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.

/* eslint-disable strict */
require('../common');

// In Node.js 0.10, a bug existed that caused strict functions to not capture
// their environment when evaluated. When run in 0.10 `test()` fails with a
// `ReferenceError`. See https://github.com/nodejs/node/issues/2245 for details.

const assert = require('assert');

function test() {

  const code = [
    'var foo = {m: 1};',
    '',
    'function bar() {',
    '\'use strict\';',
    'return foo; // foo isn\'t captured in 0.10',
    '};',
  ].join('\n');

  eval(code);

  return bar(); // eslint-disable-line no-undef

}

assert.deepStrictEqual(test(), { m: 1 });