| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // Copyright (C) 2017 Mozilla Corporation. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-get-dataview.prototype.byteoffset |
| description: > |
| Throws a TypeError exception when `this` does not have a [[DataView]] internal |
| slot |
| info: | |
| 24.2.4.3 get DataView.prototype.byteOffset |
| |
| 1. Let O be the this value. |
| 2. If Type(O) is not Object, throw a TypeError exception. |
| 3. If O does not have a [[DataView]] internal slot, throw a TypeError |
| exception. |
| ... |
| features: [SharedArrayBuffer] |
| ---*/ |
| |
| var getter = Object.getOwnPropertyDescriptor( |
| DataView.prototype, "byteOffset" |
| ).get; |
| |
| assert.throws(TypeError, function() { |
| getter.call({}); |
| }, "{}"); |
| |
| assert.throws(TypeError, function() { |
| getter.call([]); |
| }, "[]"); |
| |
| var ab = new SharedArrayBuffer(8); |
| assert.throws(TypeError, function() { |
| getter.call(ab); |
| }, "ArrayBuffer"); |
| |
| var ta = new Int8Array(); |
| assert.throws(TypeError, function() { |
| getter.call(ta); |
| }, "TypedArray"); |