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33 lines
803 B
JavaScript
33 lines
803 B
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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es6id: 20.1.1
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description: Super need to be called to initialize internals
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info: |
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20.1.1 The Number Constructor
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...
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The Number constructor is designed to be subclassable. It may be used as the
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value of an extends clause of a class definition. Subclass constructors that
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intend to inherit the specified Number behaviour must include a super call to
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the Number constructor to create and initialize the subclass instance with a
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[[NumberData]] internal slot.
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---*/
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class N extends Number {
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constructor() {}
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}
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assert.throws(ReferenceError, function() {
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new N();
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});
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class N2 extends Number {
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constructor() {
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super();
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}
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}
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new N2();
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