1 // Copyright 2016 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // In ES#sec-array.prototype.concat 6 // When concat makes a new integer-indexed exotic object, the resulting properties 7 // are non-configurable and cannot have CreateDataPropertyOrThrow called on them, 8 // so it throws a TypeError on failure to make a new property. 9 10 __v_0 = new Uint8Array(100); 11 array = new Array(10); 12 array.__proto__ = __v_0; 13 assertThrows(() => Array.prototype.concat.call(array), TypeError); 14
