| // 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: > |
| The new typedArray instance from a typedArray argument is extensible |
| info: | |
| 22.2.4.3 TypedArray ( typedArray ) |
| |
| ... |
| 4. Let O be ? AllocateTypedArray(constructorName, NewTarget, |
| "%TypedArrayPrototype%"). |
| ... |
| |
| 22.2.4.2.1 Runtime Semantics: AllocateTypedArray (constructorName, newTarget, |
| defaultProto [ , length ]) |
| |
| ... |
| 2. Let obj be IntegerIndexedObjectCreate(proto, « [[ViewedArrayBuffer]], |
| [[TypedArrayName]], [[ByteLength]], [[ByteOffset]], [[ArrayLength]] »). |
| ... |
| |
| 9.4.5.7 IntegerIndexedObjectCreate (prototype, internalSlotsList) |
| |
| ... |
| 11. Set the [[Extensible]] internal slot of A to true. |
| ... |
| includes: [testBigIntTypedArray.js] |
| features: [BigInt, TypedArray] |
| ---*/ |
| |
| var typedArraySample1 = new BigInt64Array(); |
| var typedArraySample2 = new BigInt64Array(); |
| Object.preventExtensions(typedArraySample2); |
| |
| testWithBigIntTypedArrayConstructors(function(TA) { |
| var sample1 = new TA(typedArraySample1); |
| |
| assert(Object.isExtensible(sample1), "new instance is extensible"); |
| |
| var sample2 = new TA(typedArraySample2); |
| assert( |
| Object.isExtensible(sample2), |
| "new instance does not inherit extensibility from typedarray argument" |
| ); |
| }); |