tor-browser

The Tor Browser
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instance-extensible.js (1117B)

      1 // Copyright (C) 2019 Leo Balter. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 esid: sec-finalization-registry-target
      6 description: Instances of FinalizationRegistry are extensible
      7 info: |
      8  FinalizationRegistry ( cleanupCallback )
      9 
     10  ...
     11  3. Let finalizationRegistry be ? OrdinaryCreateFromConstructor(NewTarget,  "%FinalizationRegistryPrototype%", « [[Realm]], [[CleanupCallback]], [[Cells]], [[IsFinalizationRegistryCleanupJobActive]] »).
     12  ...
     13  9. Return finalizationRegistry.
     14 
     15  OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] )
     16 
     17  ...
     18  2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto).
     19  3. Return ObjectCreate(proto, internalSlotsList).
     20 
     21  ObjectCreate ( proto [ , internalSlotsList ] )
     22 
     23  4. Set obj.[[Prototype]] to proto.
     24  5. Set obj.[[Extensible]] to true.
     25  6. Return obj.
     26 features: [FinalizationRegistry]
     27 ---*/
     28 
     29 var finalizationRegistry = new FinalizationRegistry(function() {});
     30 assert.sameValue(Object.isExtensible(finalizationRegistry), true);
     31 
     32 reportCompare(0, 0);