tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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resultdesc-is-invalid-descriptor.js (841B)

      1 // Copyright (C) 2015 the V8 project authors. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 /*---
      4 es6id: 9.5.5
      5 description: >
      6    Throws a TypeError exception if trap result and target property descriptors
      7    are not compatible.
      8 info: |
      9    [[GetOwnProperty]] (P)
     10 
     11    ...
     12    20. Let valid be IsCompatiblePropertyDescriptor (extensibleTarget,
     13    resultDesc, targetDesc).
     14    21. If valid is false, throw a TypeError exception.
     15 features: [Proxy]
     16 ---*/
     17 
     18 var target = {};
     19 
     20 var p = new Proxy(target, {
     21  getOwnPropertyDescriptor: function(t, prop) {
     22    var foo = {
     23      bar: 1
     24    };
     25 
     26    return Object.getOwnPropertyDescriptor(foo, "bar");
     27  }
     28 });
     29 
     30 Object.preventExtensions(target);
     31 
     32 assert.throws(TypeError, function() {
     33  Object.getOwnPropertyDescriptor(p, "bar");
     34 });
     35 
     36 reportCompare(0, 0);