| // 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: > |
| The [[Prototype]] internal slot is computed from NewTarget. |
| 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). |
| |
| GetPrototypeFromConstructor ( constructor, intrinsicDefaultProto ) |
| |
| 3. Let proto be ? Get(constructor, 'prototype'). |
| 4. If Type(proto) is not Object, then |
| a. Let realm be ? GetFunctionRealm(constructor). |
| b. Set proto to realm's intrinsic object named intrinsicDefaultProto. |
| 5. Return proto. |
| features: [FinalizationRegistry, Reflect.construct] |
| ---*/ |
| |
| var finalizationRegistry; |
| |
| finalizationRegistry = Reflect.construct(FinalizationRegistry, [function() {}], Object); |
| assert.sameValue(Object.getPrototypeOf(finalizationRegistry), Object.prototype, 'NewTarget is built-in Object constructor'); |
| |
| var newTarget = function() {}.bind(null); |
| Object.defineProperty(newTarget, 'prototype', { |
| get: function() { |
| return Array.prototype; |
| } |
| }); |
| finalizationRegistry = Reflect.construct(FinalizationRegistry, [function() {}], newTarget); |
| assert.sameValue(Object.getPrototypeOf(finalizationRegistry), Array.prototype, 'NewTarget is BoundFunction with accessor'); |