tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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value-object-proxy.js (1506B)

      1 // Copyright (C) 2016 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-serializejsonobject
      5 description: >
      6  Proxy of an object is treated as regular object.
      7 info: |
      8  JSON.stringify ( value [ , replacer [ , space ] ] )
      9 
     10  [...]
     11  12. Return ? SerializeJSONProperty(the empty String, wrapper).
     12 
     13  SerializeJSONProperty ( key, holder )
     14 
     15  [...]
     16  10. If Type(value) is Object and IsCallable(value) is false, then
     17    [...]
     18    c. Return ? SerializeJSONObject(value).
     19 
     20  SerializeJSONObject ( value )
     21 
     22  [...]
     23  6. Else,
     24    a. Let K be ? EnumerableOwnPropertyNames(value, "key").
     25  7. Let partial be a new empty List.
     26  8. For each element P of K, do
     27    a. Let strP be ? SerializeJSONProperty(P, value).
     28 features: [Proxy]
     29 ---*/
     30 
     31 var objectProxy = new Proxy({}, {
     32  getOwnPropertyDescriptor: function() {
     33    return {value: 1, writable: true, enumerable: true, configurable: true};
     34  },
     35  get: function() {
     36    return 1;
     37  },
     38  ownKeys: function() {
     39    return ['a', 'b'];
     40  },
     41 });
     42 
     43 assert.sameValue(
     44  JSON.stringify(objectProxy), '{"a":1,"b":1}', 'proxy for an object'
     45 );
     46 assert.sameValue(
     47  JSON.stringify({l1: {l2: objectProxy}}),
     48  '{"l1":{"l2":{"a":1,"b":1}}}',
     49  'proxy for an object (nested)'
     50 );
     51 
     52 var objectProxyProxy = new Proxy(objectProxy, {});
     53 assert.sameValue(
     54  JSON.stringify({l1: {l2: objectProxyProxy}}),
     55  '{"l1":{"l2":{"a":1,"b":1}}}',
     56  'proxy for a proxy for an object (nested)'
     57 );
     58 
     59 reportCompare(0, 0);