| // 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: > |
| Return abrupt completion from typedArray argument's buffer.constructor's value |
| 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. |
| |
| ... |
| 18. Else, |
| a. Let bufferConstructor be ? SpeciesConstructor(srcData, %ArrayBuffer%). |
| ... |
| |
| 7.3.20 SpeciesConstructor ( O, defaultConstructor ) |
| |
| ... |
| 2. Let C be ? Get(O, "constructor"). |
| ... |
| 4. If Type(C) is not Object, throw a TypeError exception. |
| ... |
| includes: [testTypedArray.js] |
| features: [Symbol, TypedArray] |
| ---*/ |
| |
| var sample1 = new Int8Array(); |
| var sample2 = new Int16Array(); |
| |
| testWithTypedArrayConstructors(function(TA) { |
| var sample = TA === Int8Array ? sample2 : sample1; |
| |
| sample.buffer.constructor = 1; |
| assert.throws(TypeError, function() { |
| new TA(sample); |
| }); |
| |
| sample.buffer.constructor = true; |
| assert.throws(TypeError, function() { |
| new TA(sample); |
| }); |
| |
| sample.buffer.constructor = ""; |
| assert.throws(TypeError, function() { |
| new TA(sample); |
| }); |
| |
| sample.buffer.constructor = null; |
| assert.throws(TypeError, function() { |
| new TA(sample); |
| }); |
| |
| var s = Symbol("1"); |
| sample.buffer.constructor = s; |
| assert.throws(TypeError, function() { |
| new TA(sample); |
| }); |
| }); |