| // 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%.prototype.slice |
| description: Throws a TypeError buffer is detached on Get custom constructor. |
| info: | |
| 22.2.3.24 %TypedArray%.prototype.slice ( start, end ) |
| |
| ... |
| 9. Let A be ? TypedArraySpeciesCreate(O, « count »). |
| ... |
| 14. If SameValue(srcType, targetType) is false, then |
| ... |
| 15. Else if count > 0, then |
| a. Let srcBuffer be the value of O's [[ViewedArrayBuffer]] internal slot. |
| b. If IsDetachedBuffer(srcBuffer) is true, throw a TypeError exception. |
| ... |
| includes: [testTypedArray.js, detachArrayBuffer.js] |
| features: [Symbol.species, TypedArray] |
| ---*/ |
| |
| testWithTypedArrayConstructors(function(TA) { |
| var sample = new TA(1); |
| |
| sample.constructor = {}; |
| sample.constructor[Symbol.species] = function(count) { |
| $DETACHBUFFER(sample.buffer); |
| return new TA(count); |
| }; |
| |
| assert.throws(TypeError, function() { |
| sample.slice(); |
| }, "step 15.b, IsDetachedBuffer(srcBuffer) is true"); |
| }); |