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// |reftest| shell-option(--enable-iterator-helpers) skip-if(!this.hasOwnProperty('Iterator')||!xulRuntime.shell) -- iterator-helpers is not enabled unconditionally, requires shell-options
// Copyright (C) 2020 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-iterator-constructor
description: >
The Iterator constructor is designed to be subclassable.
info: |
The Iterator constructor
- is designed to be subclassable. It may be used as the value of an extends clause of a class defintion.
features: [iterator-helpers]
---*/
class SubIterator extends Iterator {}
assert.sameValue(
new SubIterator() instanceof SubIterator,
true,
'The result of `(new SubIterator() instanceof SubIterator)` is true'
);
assert.sameValue(
new SubIterator() instanceof Iterator,
true,
'The result of `(new SubIterator() instanceof Iterator)` is true'
);
reportCompare(0, 0);
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