| // Copyright (C) 2021 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-get-arraybuffer.prototype.maxbytelength |
| description: Throws a TypeError exception when `this` is a SharedArrayBuffer |
| info: | |
| get ArrayBuffer.prototype.maxByteLength |
| |
| 1. Let O be the this value. |
| 2. Perform ? RequireInternalSlot(O, [[ArrayBufferData]]). |
| 3. If IsSharedArrayBuffer(O) is true, throw a TypeError exception. |
| [...] |
| features: [SharedArrayBuffer, resizable-arraybuffer] |
| ---*/ |
| |
| var maxByteLength = Object.getOwnPropertyDescriptor( |
| ArrayBuffer.prototype, "maxByteLength" |
| ); |
| |
| var getter = maxByteLength.get; |
| var sab = new SharedArrayBuffer(4); |
| |
| assert.sameValue(typeof getter, "function"); |
| |
| assert.throws(TypeError, function() { |
| getter.call(sab); |
| }, "`this` cannot be a SharedArrayBuffer"); |
| |
| Object.defineProperties(sab, { maxByteLength: maxByteLength }); |
| |
| assert.throws(TypeError, function() { |
| sab.maxByteLength; |
| }, "`this` cannot be a SharedArrayBuffer"); |