| // Copyright (C) 2019 Leo Balter. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-finalization-registry-target |
| description: Instances of FinalizationRegistry are extensible |
| info: | |
| FinalizationRegistry ( cleanupCallback ) |
| |
| ... |
| 3. Let finalizationRegistry be ? OrdinaryCreateFromConstructor(NewTarget, "%FinalizationRegistryPrototype%", « [[Realm]], [[CleanupCallback]], [[Cells]], [[IsFinalizationRegistryCleanupJobActive]] »). |
| ... |
| 9. Return finalizationRegistry. |
| |
| OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] ) |
| |
| ... |
| 2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto). |
| 3. Return ObjectCreate(proto, internalSlotsList). |
| |
| ObjectCreate ( proto [ , internalSlotsList ] ) |
| |
| 4. Set obj.[[Prototype]] to proto. |
| 5. Set obj.[[Extensible]] to true. |
| 6. Return obj. |
| features: [FinalizationRegistry] |
| ---*/ |
| |
| var finalizationRegistry = new FinalizationRegistry(function() {}); |
| assert.sameValue(Object.isExtensible(finalizationRegistry), true); |
