tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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call-parameters.js (930B)

      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: 9.5.10
      5 description: >
      6    [[Delete]] (P)
      7 
      8    9. Let booleanTrapResult be ToBoolean(Call(trap, handler, «target, P»)).
      9 info: |
     10    6.1.7.2 Object Internal Methods and Internal Slots
     11 
     12    (...) Receiver is used as the this value when evaluating the code
     13 features: [Proxy]
     14 ---*/
     15 
     16 var _handler, _target, _prop;
     17 var target = {
     18  attr: 1
     19 };
     20 var handler = {
     21  deleteProperty: function(t, prop) {
     22    _handler = this;
     23    _target = t;
     24    _prop = prop;
     25    return delete t[prop];
     26  }
     27 };
     28 var p = new Proxy(target, handler);
     29 
     30 delete p.attr;
     31 
     32 assert.sameValue(_handler, handler, "handler object as the trap context");
     33 assert.sameValue(_target, target, "first argument is the target object");
     34 assert.sameValue(_prop, "attr", "second argument is the property name");
     35 
     36 reportCompare(0, 0);