tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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call-parameters-object-keys.js (789B)

      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 esid: sec-proxy-object-internal-methods-and-internal-slots-ownpropertykeys
      5 description: >
      6    [[OwnPropertyKeys]] ( )
      7 
      8    7. Let trapResultArray be ? Call(trap, handler, « target »).
      9 features: [Proxy]
     10 ---*/
     11 
     12 var _target, _handler;
     13 var target = {
     14  foo: 1,
     15  bar: 2
     16 };
     17 var handler = {
     18  ownKeys: function(t) {
     19    _handler = this;
     20    _target = t;
     21    return Object.keys(t);
     22  }
     23 };
     24 var p = new Proxy(target, handler);
     25 
     26 var keys = Object.keys(p);
     27 
     28 assert.sameValue(keys[0], "foo");
     29 assert.sameValue(keys[1], "bar");
     30 assert.sameValue(keys.length, 2);
     31 assert.sameValue(_handler, handler);
     32 assert.sameValue(_target, target);
     33 
     34 reportCompare(0, 0);