tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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restricted-properties.js (868B)

      1 // Copyright (C) 2015 Caitlin Potter. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 description: >
      6    Functions created using GeneratorFunction syntactic form do not have own
      7    properties "caller" or "arguments", but inherit them from
      8    %FunctionPrototype%.
      9 features: [generators]
     10 ---*/
     11 
     12 function* generator() {}
     13 
     14 assert.sameValue(
     15  generator.hasOwnProperty('caller'), false, 'No "caller" own property'
     16 );
     17 assert.sameValue(
     18  generator.hasOwnProperty('arguments'), false, 'No "arguments" own property'
     19 );
     20 
     21 assert.throws(TypeError, function() {
     22  return generator.caller;
     23 });
     24 
     25 assert.throws(TypeError, function() {
     26  generator.caller = {};
     27 });
     28 
     29 assert.throws(TypeError, function() {
     30  return generator.arguments;
     31 });
     32 
     33 assert.throws(TypeError, function() {
     34  generator.arguments = {};
     35 });
     36 
     37 reportCompare(0, 0);