// Copyright (C) 2016 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-typedarray-typedarray description: > Use prototype from new target if it's an Object info: > 22.2.4.3 TypedArray ( typedArray ) This description applies only if the TypedArray function is called with at least one argument and the Type of the first argument is Object and that object has a [[TypedArrayName]] internal slot. ... 4. Let O be ? AllocateTypedArray(constructorName, NewTarget, %TypedArrayPrototype%). ... 22.2.4.2.1 Runtime Semantics: AllocateTypedArray (constructorName, newTarget, defaultProto [ , length ]) 1. Let proto be ? GetPrototypeFromConstructor(newTarget, defaultProto). 2. Let obj be IntegerIndexedObjectCreate (proto, «[[ViewedArrayBuffer]], [[TypedArrayName]], [[ByteLength]], [[ByteOffset]], [[ArrayLength]]» ). ... 9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList) ... 10. Set the [[Prototype]] internal slot of A to prototype. ... 12. Return A. features: [Reflect] includes: [testTypedArray.js] ---*/ function newTarget() {} var proto = {}; newTarget.prototype = proto; var sample = new Int8Array(8); testWithTypedArrayConstructors(function(TA) { var ta = Reflect.construct(TA, [sample], newTarget); assert.sameValue(ta.constructor, Object); assert.sameValue(Object.getPrototypeOf(ta), proto); });