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// |reftest| skip-if(!this.hasOwnProperty('FinalizationRegistry')) -- FinalizationRegistry is not enabled unconditionally
// 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: >
[[Prototype]] defaults to %FinalizationRegistryPrototype% if NewTarget.prototype is not an object.
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, Symbol]
---*/
var finalizationRegistry;
function newTarget() {}
function fn() {}
newTarget.prototype = undefined;
finalizationRegistry = Reflect.construct(FinalizationRegistry, [fn], newTarget);
assert.sameValue(Object.getPrototypeOf(finalizationRegistry), FinalizationRegistry.prototype, 'newTarget.prototype is undefined');
newTarget.prototype = null;
finalizationRegistry = Reflect.construct(FinalizationRegistry, [fn], newTarget);
assert.sameValue(Object.getPrototypeOf(finalizationRegistry), FinalizationRegistry.prototype, 'newTarget.prototype is null');
newTarget.prototype = true;
finalizationRegistry = Reflect.construct(FinalizationRegistry, [fn], newTarget);
assert.sameValue(Object.getPrototypeOf(finalizationRegistry), FinalizationRegistry.prototype, 'newTarget.prototype is a Boolean');
newTarget.prototype = '';
finalizationRegistry = Reflect.construct(FinalizationRegistry, [fn], newTarget);
assert.sameValue(Object.getPrototypeOf(finalizationRegistry), FinalizationRegistry.prototype, 'newTarget.prototype is a String');
newTarget.prototype = Symbol();
finalizationRegistry = Reflect.construct(FinalizationRegistry, [fn], newTarget);
assert.sameValue(Object.getPrototypeOf(finalizationRegistry), FinalizationRegistry.prototype, 'newTarget.prototype is a Symbol');
newTarget.prototype = 1;
finalizationRegistry = Reflect.construct(FinalizationRegistry, [fn], newTarget);
assert.sameValue(Object.getPrototypeOf(finalizationRegistry), FinalizationRegistry.prototype, 'newTarget.prototype is a Number');
reportCompare(0, 0);
|
