1// Copyright 2015 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// Flags: --harmony-regexps 6 7function store(v) { 8 var re = /(?=[d#.])/; 9 re.a = v; 10 return re; 11} 12 13var re1 = store(undefined); 14var re2 = store(42); 15 16assertEquals(re1.a, undefined); 17assertEquals(re2.a, 42); 18