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Diffstat (limited to 'js/src/tests/test262/built-ins/FinalizationRegistry/prototype-from-newtarget-custom.js')
-rw-r--r-- | js/src/tests/test262/built-ins/FinalizationRegistry/prototype-from-newtarget-custom.js | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/FinalizationRegistry/prototype-from-newtarget-custom.js b/js/src/tests/test262/built-ins/FinalizationRegistry/prototype-from-newtarget-custom.js new file mode 100644 index 0000000000..b31b87972e --- /dev/null +++ b/js/src/tests/test262/built-ins/FinalizationRegistry/prototype-from-newtarget-custom.js @@ -0,0 +1,47 @@ +// |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: > + 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'); + +reportCompare(0, 0); |