// Copyright (C) 2016 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- es6id: 21.2.3 description: Subclassing the RegExp object info: | 21.2.3 The RegExp Constructor ... The RegExp constructor is designed to be subclassable. It may be used as the value of an extends clause of a class definition. Subclass constructors that intend to inherit the specified RegExp behaviour must include a super call to the RegExp constructor to create and initialize subclass instances with the necessary internal slots. ---*/ class RE extends RegExp {} var re = new RE(39); assert.sameValue(re.test('TC39'), true); assert.sameValue(re.test('42'), false); reportCompare(0, 0);