tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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call-parameters-object-getownpropertysymbols.js (889B)

      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 
     10 features: [Proxy, Symbol]
     11 ---*/
     12 
     13 var _target, _handler;
     14 var target = {};
     15 var a = Symbol('a');
     16 var b = Symbol('b');
     17 
     18 target[a] = 1;
     19 target[b] = 2;
     20 
     21 var handler = {
     22  ownKeys: function(t) {
     23    _handler = this;
     24    _target = t;
     25    return Object.getOwnPropertySymbols(t);
     26  }
     27 }
     28 var p = new Proxy(target, handler);
     29 
     30 var symbols = Object.getOwnPropertySymbols(p);
     31 
     32 assert.sameValue(symbols[0], a);
     33 assert.sameValue(symbols[1], b);
     34 assert.sameValue(symbols.length, 2);
     35 assert.sameValue(_handler, handler);
     36 assert.sameValue(_target, target);
     37 
     38 reportCompare(0, 0);