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// 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-array.prototype.concat
description: >
Behavior when the @@species attribute is a non-constructor object
info: |
1. Let O be ? ToObject(this value).
2. Let A be ? ArraySpeciesCreate(O, 0).
9.4.2.3 ArraySpeciesCreate
[...]
5. Let C be ? Get(originalArray, "constructor").
[...]
7. If Type(C) is Object, then
a. Let C be ? Get(C, @@species).
b. If C is null, let C be undefined.
[...]
9. If IsConstructor(C) is false, throw a TypeError exception.
includes: [isConstructor.js]
features: [Symbol.species, Reflect.construct]
---*/
assert.sameValue(
isConstructor(parseInt),
false,
'precondition: isConstructor(parseInt) must return false'
);
var a = [];
a.constructor = {};
a.constructor[Symbol.species] = parseInt;
assert.throws(TypeError, function() {
a.concat();
}, 'a.concat() throws a TypeError exception');
reportCompare(0, 0);
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