| // 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-integer-indexed-exotic-objects-defineownproperty-p-desc |
| description: > |
| Can't define a new non-numerical key on a non-extensible instance |
| info: | |
| 9.4.5.3 [[DefineOwnProperty]] ( P, Desc) |
| ... |
| 3. If Type(P) is String, then |
| a. Let numericIndex be ! CanonicalNumericIndexString(P). |
| b. If numericIndex is not undefined, then |
| ... |
| 4. Return OrdinaryDefineOwnProperty(O, P, Desc). |
| ... |
| includes: [testTypedArray.js] |
| features: [Reflect, TypedArray] |
| ---*/ |
| |
| testWithTypedArrayConstructors(function(TA) { |
| var sample = new TA([42, 43]); |
| Object.preventExtensions(sample); |
| |
| assert.sameValue( |
| Reflect.defineProperty(sample, "foo", {value:42}), |
| false, |
| "return false on a non-extensible object - data descriptor" |
| ); |
| |
| assert.sameValue(Object.getOwnPropertyDescriptor(sample, "foo"), undefined); |
| |
| assert.sameValue( |
| Reflect.defineProperty(sample, "bar", { |
| get: function() {}, |
| set: function() {}, |
| enumerable: false, |
| configurable: true |
| }), |
| false, |
| "return false on a non-extensible object - accessor descriptor" |
| ); |
| |
| assert.sameValue(Object.getOwnPropertyDescriptor(sample, "bar"), undefined); |
| }); |