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 5var counter = 0; 6var a = { valueOf: function() { counter++; return 0x100; } }; 7assertEquals("A\u0100\u0100\u0100", String.fromCharCode(65, a, a, a)); 8assertEquals(3, counter); 9