tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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call-bind-this-realm-undef.js (1081B)

      1 // Copyright (C) 2016 the V8 project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 esid: sec-ecmascript-function-objects-call-thisargument-argumentslist
      5 description: The "this" value is set to the global This value
      6 info: |
      7  [...]
      8  6. Perform OrdinaryCallBindThis(F, calleeContext, thisArgument).
      9  [...]
     10 
     11  9.2.1.2OrdinaryCallBindThis ( F, calleeContext, thisArgument )#
     12 
     13  [...]
     14  5. If thisMode is strict, let thisValue be thisArgument.
     15  6. Else,
     16     a. If thisArgument is null or undefined, then
     17        i. Let globalEnv be calleeRealm.[[GlobalEnv]].
     18        ii. Let globalEnvRec be globalEnv's EnvironmentRecord.
     19        iii. Let thisValue be globalEnvRec.[[GlobalThisValue]].
     20  [...]
     21 features: [cross-realm]
     22 ---*/
     23 
     24 var other = $262.createRealm().global;
     25 var func = new other.Function('return this;');
     26 var subject;
     27 
     28 assert.sameValue(func(), other, 'implicit undefined');
     29 assert.sameValue(func.call(undefined), other, 'explicit undefined');
     30 assert.sameValue(func.call(null), other, 'null');
     31 
     32 reportCompare(0, 0);